Updated on 2022/08/26

写真a

 
Tsunenori Nakajima
 
Organization
Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Department of Engineering Chemistry and Biotechnology Program Associate Professor
Title
Associate Professor
Contact information
メールアドレス
External link

Degree

  • 博士(工学) ( 2005.3   鹿児島大学 )

  • 修士(工学) ( 1996.3   鹿児島大学 )

  • 学士(工学) ( 1994.3   鹿児島大学 )

Research Interests

  • 環境中のヒ素固定化技術

  • 環境中の有害元素固定化

  • 固体試料中の重金属元素簡易分析

  • 微量有害元素分析

  • ヒ素化合物の化学形態分析

  • 石炭

  • 生態影響評価

  • 光触媒

Research Areas

  • Environmental Science/Agriculture Science / Environmental load reduction and remediation  / 有害重金属固定化

  • Nanotechnology/Materials / Analytical chemistry

  • Environmental Science/Agriculture Science / Environmental materials and recycle technology

  • Nanotechnology/Materials / Green sustainable chemistry and environmental chemistry

Research History

  • Kagoshima University   Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Department of Engineering Chemistry and Biotechnology Program   Associate Professor

    2020.4

  • Kagoshima University

    2009.4

  • Kagoshima University   Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Chemistry, Biotechnology, and Chemical Engineering Course   Associate Professor

    2009.4 - 2020.3

Professional Memberships

  • 日本ヒ素研究会

    2015.10

  • 環境科学会

    2015.10

  • 水環境学会

    2015.10

  • 日本エネルギー学会

    2015.10

  • 日本化学会

    2015.10

  • 日本分析化学会

  • 日本ヒ素研究会

  • 日本エネルギー学会

  • 日本化学会

  • 環境科学会

  • 日本環境化学会

  • 日本水環境学会

▼display all

 

Papers

  • Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Ikuro Kasuga, Michihiro Akiba .  The Status Quo of Causal Substance Exploration for Fishy Odor in Raw Water for Taps .  Journal of Water and Environment Technology20 ( 2 ) 29 - 44   2022.4The Status Quo of Causal Substance Exploration for Fishy Odor in Raw Water for TapsReviewed

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.2965/jwet.21-135

  • Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Akio Ogura, Hiroaki Kitamura, Michihiro Akiba .  Exploration of an odorous aldehydes and ketones produced by Uroglena americana using high resolution mass spectrometry, GC-Olfactometry, and multivariate analysis .  Chemosphere257   127174 - 127174   2020.10

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    © 2020 Elsevier Ltd Off-flavor events in tap water have been reported from various regions of Japan. Fishy smell is the second most common off-flavor in Japan and Uroglena americana (U. americana) is known to be a major contributor to the smell. However, the causative compound of the smell it produces still remains unrevealed to the best of our knowledge. In this study, an exploration of odorous aldehydes and ketones originating from U. americana was performed with a view to discovering a possible candidate substance of causative compounds. Environmental samples containing U. americana colony and cultured media with U. americana were analyzed with two high resolution mass spectrometers, one of them is coupled with liquid chromatography (LC-HRMS), and the other is with gas chromatography and a sniffing port (GC-O-HRMS). Multivariate analyses (MVA) were utilized to explore a compound that is likely to be odorous aldehydes or ketones with a reduced time of exploration. A combination of LC-HRMS and MVA resulted in the selection of one candidate substance and its formula was determined to be C13H20O3 on the basis of its accurate mass and natural isotopic pattern. The candidate substance underwent GC-O-HRMS analyses and milk-like smell was detected at around its retention time. Although the detected smell was different from fishy smell, it is expected that the fishy smell is caused by multiple compounds to which the candidate substance belongs. First generation product ion spectra of the candidate substance suggested that it contains a hydroxyl group, a cyclohexene ring, and a ketone moiety.

    DOI: 10.1016/j.chemosphere.2020.127174

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  • Fumi Hashimoto, Hirokazu Takanashi, Tsunenori Nakajima, Takehiko Ueda, Jun ichi Kadokawa, Hidenori Ishikawa, Nobukazu Miyamoto .  Occurrence of imidacloprid and its transformation product (imidacloprid-nitroguanidine) in rivers during an irrigating and soil puddling duration .  Microchemical Journal153 ( 0 ) 0 - 0   2020.3

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    © 2019 Elsevier B.V. Liquid chromatography/triple quadrupole mass spectrometry is a promising technique to detect trace contaminants in water environments. This technique requires reference standard reagents to develop selected reaction monitoring (SRM) conditions, but emerging contaminants like pesticide transformation products are often commercially unavailable in markets. Thus in this study, high resolution mass spectrometry was coupled with sensitive triple quadrupole mass spectrometry to develop SRM conditions by using environmental samples instead of reference standard reagents. The SRM conditions for imidacloprid-nitroguanidine (1-((6-chloropyridin-3-yl)methyl)-2-nitroguanidine), an transformation product of a neonicotinoid, were successfully developed by using a concentrated paddy water sample. Prior to its synthesis, imidacloprid-nitroguanidine was verified to be present in actual river water samples. Without such verification, the synthesis of imidacloprid-nitroguanidine could be meaningless if its concentrations in samples were below detection limit. After that, it was eventually synthesized to acquire its calibration curve. In the sampling site, imidacloprid has been applied to nursery boxes of rice seedling. Rice seedlings raised in nursery boxes were transplanted to paddy fields along with the soil in boxes. Imidacloprid-nitroguanidine was detected in the soil and its penetration into river water may cause pollution. Obvious pollution was observed before the rice plantation began because of irrigating and soil puddling in paddy fields, which indicates that monitoring of transformation product in soil must be started before rice plantation begins.

    DOI: 10.1016/j.microc.2019.104496

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  • HASHIMOTO Fumi, TAKANASHI Hirokazu, NAKAJIMA Tsunenori, UEDA Takehiko, KADOKAWA Jun-ichi, MIYAMOTO Nobukazu, ISHIKAWA Hidenori .  Detection and Acute Toxicity Evaluation of Imidacloprid-diol (<i>N</i>-(1-chloropyridine-3-yl)methyl)-4,5-dihydroxyimidazolidine-2-iliden)nitramide) .  ENVIRONMENTAL SCIENCE33 ( 5 ) 126 - 135   2020Reviewed

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN  

    <p>Imidacloprid-diol (<i>N</i>-(1-chloropyridine-3-yl)methyl)-4,5-dihydroxyimidazolidine-2-iliden)nitramide) is a plant metabolite of a neonicotinoid pesticide imidacloprid (CASRN: 138261-41-3). Its detection in environmental water samples and acute toxicity test result were still unreported to the best of our knowledge. This may be because imidacloprid diol is unpurchasable from the market at this moment. Thus in the present study imidacloprid-diol was synthesized and explored from an actual paddy water sample. The exploration was conducted on imidacloprid and six transformation products (TPs) including imidacloprid-diol. Furthermore their acute toxicities against <i>Chironomus yoshimatsui</i> and <i>Daphnia magna</i> were evaluated. Imidacloprid-diol was not detected in an irradiated water sample of imidacloprid. On the contrary it was clearly detected in the paddy water sample. Four TPs and five TPs were detected in the irradiated and the paddy water sample, respectively. Of imidacloprid, 48 h-EC<sub>50</sub> values against <i>Chironomus yoshimatsui</i> were 160–>8,600 times higher than those of TPs. As for <i>Daphnia magna</i> the values were 0.8–>8.0 times higher than those of TPs. The acute toxicity of imidacloprid decreased by transforming into its TPs including imidacloprid-diol. The lethal toxicity of 6-chloronicotinaldehyde against <i>Daphnia magna</i> was observed while that of imidacloprid was not observed, indicating that toxicity evaluation of TPs is needed as well as intact pesticides.</p>

    DOI: 10.11353/sesj.33.126

  • OBA Sayoko, KIRIHARA Kouki, OTSUCHIHASHI Masaki, TAKANASHI Hirokazu, NAKAJIMA Tsunenori, UEDA Takehiko, KADOKAWA Jun-ichi, ISHIKAWA Hidenori, MIYAMOTO Nobukazu .  Binding Affinity Evaluation of Monohydroxydinotefuran and Its Isomers to Acetylcholine Receptor .  Journal of Japan Society on Water Environment43 ( 1 ) 1 - 7   2020Reviewed

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society on Water Environment  

    <p>There are some reports that transformation products of a pesticide exist at higher concentrations than their parent pesticide, or their pharmacological activities are comparable to that of a parent pesticide. It is therefore of importance to examine their potential effects on aquatic organisms; however, few studies have focused on the insecticidal activities of a transformation product of dinotefuran, a neonicotinoid pesticide. In this study, dinotefuran's transformation products were explored by LC-HRMS analyses of dinotefuran aqueous solutions that had been irradiated by a xenon lamp. This exploration resulted in the discovery of two unknown transformation products. Structural elucidations of these two compounds suggested 28 and 82 chemical structures in terms of structural isomers and steric isomers, respectively. Their binding affinities for a glia-derived acetylcholine-binding protein of <i>Lymnaea</i> <i>stagnalis</i> were simulated to estimate their insecticidal activities. Out of 28 candidates, 20 were judged to have significant insecticidal activities. It can be concluded that the simulation of a substance's binding affinity, the so-called docking simulation, is a promising way to exclude nontoxic substances among a large number of candidate substances.</p>

    DOI: 10.2965/jswe.43.1

  • SHINFUKU Yuta, NAKAMURA Tomohiro, TAKANASHI Hirokazu, NAKAJIMA Tsunenori, UEDA Takehiko, AKIBA Michihiro .  A Method to Purify a Sample Derivatized with 2,4-Dinitrophenylhydrazine (DNPH) Using Solid Phase Extraction .  ENVIRONMENTAL SCIENCE33 ( 5 ) 70 - 78   2020Reviewed

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN  

    <p>2,4-Dinitrophenylhydrazine (DNPH) is one of the most common derivatizing reagent used for an analysis of aldehydes or ketones. Derivatives produced by this reaction are readily detected by UV/Vis photospectrometer or LC/MS. However, during the derivatization, an excess amount of DNPH is added to a sample and a large part of it remains unreacted. Injecting this residual DNPH into an analytical instrument may lead to some negative effects such as a damaged LC column, or a clogged sampling cone, probably resulting in an impaired detection sensitivity. It is therefore of importance to remove unreacted DNPH prior to an analysis.</p><p>The objective of this study is to develop a purification method for a DNPH-derivatized sample. Solid phase extraction (SPE) was focused on as a strategy to achieve this. The SPE purification method developed in this study removed 97.5% of unreacted DNPH and recovered 103% of a derivative. Additionally, quantum chemistry calculation was adopted to verify the experimental results. The calculation results were in good accordance with the experimental ones, <i>i.e.</i>, the complexation between DNPH and a sorbent was more stable than that between a derivative and a sorbent.</p>

    DOI: 10.11353/sesj.33.70

  • Atsushi Sawai, Tetsuro Okamura, Nobukazu Miyamoto, Takashi Kameya, Yuta Shinfuku, Tsunenori Nakajima, Hirokazu Takanashi .  A demonstration of mass-spectrometric exploration of organic ecotoxicants from simulated sewage-treatment-plant effluents .  Journal of Water and Environment Technology17 ( 4 ) 251 - 261   2019Reviewed

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    © 2019 Japan Society on Water Environment. From three different sewage treatment plants, three effluent samples were collected to demonstrate applicability of a non-targeted mass spectrometric analysis for exploration and identification of organic ecotoxicants in the samples. Five known organic ecotoxicants were added to these samples to simulate toxic samples. The non-targeted analyses of the simulated samples were conducted with a liquid chromatograph-high resolution mass spectrometer. The whole effluent toxicity tests were conducted by using Raphidocelis subcapitata as the test organism. The number of components detected by the analyses was 3,427. Relationships between peak volumes of these detected components and the samples' toxicities were analyzed by the orthogonal projections to latent structure-regression analysis, the correlation analysis and the multiple regression analysis. An ion of m/z 286.9436 was found as a possible monoisotopic ion of the added toxicant. A molecular formula of the ion was determined by its accurate mass and natural isotopic pattern. The determined molecular formula was searched in an advanced mass spectral database. The database suggested that the found toxicant is triclosan (an antibacterial and antifungal agent). It was identified as triclosan by a co-chromatography using a reference standard reagent. Because a dominant toxicant was triclosan among the added five toxicants, the applicability was successfully demonstrated.

    DOI: 10.2965/jwet.18-083

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  • Hirokazu Takanashi, Kazuya Abiru, Tomohiro Hama, Yuta Shinfuku, Tsunenori Nakajima, Akira Ohki, Takehiko Ueda, Takashi Kondo, Taku Matsushita, Takashi Kameya .  Identification of a mutagenic chlorination by-product produced from (E)-1, 3-dichloropropene (a component of nematocide DD) by using high resolution LC/MS and multivariate analysis .  Water Research146   187 - 196   2018.12Reviewed

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    © 2018 Elsevier Ltd The estimated domestic usage of DD (a typical nematocide) has been the greatest among all the agricultural chemicals in Japan. DD is involved in a document which is used to establish tap water quality standard in Japan. The document indicates that DD is potentially detectable in raw water for tap waters. DD in raw water will be treated with chlorine at waterworks, which raises concerns about formation of mutagenic chlorination by-products through the treatment. The objective of this work was to identify a mutagenic chlorination by-product by using high resolution mass spectrometers and multivariate analyses. Mutagenicity of the chlorination by-product was evaluated with the Ames Salmonella mutagenicity assay. (E)-1,3-Dichloropropene (DCP) was used as a model compound of DD. The mutagenicity of chlorine treated model aqueous solutions of DD increased with increasing chlorine dosages up to 3.00 mol-Cl2/mol-DCP. From the chlorine treated aqueous solutions of DD, 1,3-dichloroacetone (DCA) was identified as a major mutagen by a cochromatography with an authentic standard, precursor ion analyses and first-generation product ion analyses with the high resolution mass spectrometers. The mutagenicity of DCA against TA100 strain without microsomal activation was 160,000 net revertant colony/μmol (the toxicity equivalent factor was 0.14). Based on the mutagenicity of the chlorine treated DCP sample, the specific mutagenicity of DCA, and the DCA concentration in the sample, the mutagenic contribution of DCA to the chlorine treated DCP sample was calculated. High contribution (98%) clearly shows that DCA is a major mutagen in the chlorine treated DCP sample. Because the exploration of DCA was performed by using the unrealistic high concentration samples of DCP and chlorine, formation of DCA in the practical concentration samples (0-200 μg-DCP/L, 0.10 or 1.27 mg-Cl2/L) was examined. It was proven that DCA formation reaction takes place in the practical concentrations of DCA and chlorine.

    DOI: 10.1016/j.watres.2018.09.024

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  • Takuya Furuzono, Tsunenori Nakajima, Hiroki Fujishima, Hirokazu Takanashi, Akira Ohki .  Behavior of selenium in the flue gas of pulverized coal combustion system: Influence of kind of coal and combustion conditions .  Fuel Processing Technology167   388 - 394   2017Reviewed

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    © 2017 Elsevier B.V. Five kinds of coals (mainly low Se levels) were pulverized and combusted in a turbulent furnace combustion test rig, which had a burner on the top and a gas cooling pipe with two sampling ports at the side near the bottom. A sampling train according to ISO 17211:2015 was attached to the ports to assess the distribution of Se in the gas and solid phase (coal ash) in the flue gas. The fraction of Se in the solid phase (R Ses) in the flue gas is given by R Ses = Ses/(Ses + Seg), where Ses and Seg are the concentrations of Se in the solid and gas phases, respectively. For all coals, R Ses increased with a decrease in the flue gas temperature from 300 °C to 100 °C, and the difference in R Ses by the temperature was greatly dependent on the kinds of feed coals. The effects of the contents of minerals in feed coals and the combustion conditions upon R Ses were studied. The partitioning of Se from the gas to solid phase in the flue gas was elucidated in terms of the chemical and physical adsorption of Se on coal ash.

    DOI: 10.1016/j.fuproc.2017.07.019

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  • 高梨 啓和 , 浜 知広 , 中島 常憲 , 大木 章 , 上田 岳彦 , 松下 拓 , 近藤 貴志 , 亀屋 隆志 .  農薬およびその環境変化体の変異原性物質生成能における定量的構造活性相関解析 .  環境科学会誌29 ( 5 ) 229 - 237   2016.10Reviewed

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    DOI: 10.11353/sesj.29.229

  • Akira Ohki, Tsunenori Nakajima, Kentaro Hayashi, Haruna Taniguchi, Kousei Haraguchi, Hirokazu Takanashi .  Levels of Hg and other chemical elements in volcanic ash fall samples erupted from Mt. Sakurajima, Japan .  Toxicological and Environmental Chemistry98 ( 7 ) 778 - 786   2016.8Reviewed

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    © 2016 Taylor & Francis. Mt. Sakurajima is a volcanic island in Japan, and a big city, Kagoshima, is quite close to the active volcano. Samples of volcanic ash fall erupted from Mt. Sakurajima were collected at several locations in Kagoshima City and analyzed for Hg and other elements, including major (Mg, Al, Ca, and Fe) and trace elements (V, Cr, Mn, Co, Ni, Zn, As, and Pb). The concentrations of Hg varied from 6.3 to 124 ng g−1, with the amounts of ash varying from 13 to 1230 g m−2 month−1. The Hg concentrations tended to be higher when the monthly amounts of ash fall were lower; other elements did not show such a tendency.

    DOI: 10.1080/02772248.2016.1139117

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  • Akira Ohki, Tsunenori Nakajima, Shota Hirakawa, Kentaro Hayashi, Hirokazu Takanashi .  A simple method of the recovery of selenium from food samples for the determination by ICP-MS .  Microchemical Journal124   693 - 698   2016.1Reviewed

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    © 2015 Elsevier B.V. By using subcritical water (SW), a simple method of the recovery of selenium (Se) from food samples was developed for the determination of Se by inductively coupled plasma mass spectrometry (ICP-MS). A portion of powdery dried sample was precisely weighed and mixed with pure water (liquid/solid ratio, 100). This was placed in a sealed vessel, and heated in an electric oven. The resulting aqueous phase was analyzed for Se by ICP-MS. The optimum conditions for the recovery of Se were studied by using certified reference materials of biological samples (NMIJ-7402a and TORT-2). In order to validate the SW treatment as an analytical pretreatment, fourteen food samples under the optimum conditions (treatment temperature, 220. °C; time 120. min) were tested. The samples include fishes, shellfishes, meats, and dried seaweeds. The Se concentrations obtained using the SW treatment were about the same as those with the conventional method, microwave-assisted acid digestion. The dissolution behavior of Se during the SW treatment was clearly elucidated by using water extraction and SEC-ICP-MS analysis.

    DOI: 10.1016/j.microc.2015.10.012

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  • Air Pollution in Kagoshima City (Part 28) Investigation from April 2014 to March 2015  .    57   15 - 20   2015.11Air Pollution in Kagoshima City (Part 28) Investigation from April 2014 to March 2015 

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  • Air Pollution in Kagoshima City (Part 27) Investigation from April 2013 to March 2014 .    56   17 - 22   2014.11Air Pollution in Kagoshima City (Part 27) Investigation from April 2013 to March 2014

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  • Akira Ohki, Misa Taira, Shota Hirakawa, Kousei Haraguchi, Fumiaki Kanechika, Tsunenori Nakajima, Hirokazu Takanashi .  Determination of mercury in various coals from different countries by heat-vaporization atomic absorption spectrometry: Influence of particle size distribution of coal .  Microchemical Journal114   119 - 124   2014.5Reviewed

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    Fifty-one kinds of coals, which are practically used in Japanese power plants and industries, were analyzed for Hg by an automatic mercury analyzer (AMA) based on an official method (heat vaporization atomic absorption spectrometry). Almost all coals were imported coals from various countries. These coals are supplied in a powdery form as standard samples by a Japanese organization and called "SS-coals". Since the sample amount of coal used in the AMA measurement is usually small, the particle size of coal may greatly affect the measurement, however there have been no systematic studies on the matter. Some of the SS-coals, which were much finer than frequently-used certified reference materials (NIST SRM coals), showed a great deviation in data (relative standard deviation (RSD) is high) in the determination of Hg. The SS-coals were ground further into fine powder, and the resulting coals (ground SS-coals) gave lower RSD values. The mean values of Hg content when the as-received SS-coals were measured many times (more than six runs) became about the same as those for the ground SS-coals. The deviation in data in the Hg determination was discussed with the possibility of localization of Hg in coal body at a microscopic level. The content of Hg in coal (bituminous coals) correlated not with that of sulfur (or pyritic sulfur) but with that of ash. Also, it was found that the coals of high inherent moisture exclusively had low Hg contents. © 2013.

    DOI: 10.1016/j.microc.2013.12.012

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  • Hirokazu TAKANASHI, Tomohiro HAMA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA, Taku MATSUSHITA .  A screening study of mutagen formation potential (MFP) of pesticide transformation products in water environments (PTPWs) to investigate the MFP changes from their parent pesticides through transforma .  Journal of Water and Environment Technology12   2014.2A screening study of mutagen formation potential (MFP) of pesticide transformation products in water environments (PTPWs) to investigate the MFP changes from their parent pesticides through transformaReviewed

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  • Nakajima, T, Haraguchi, K, Taira, M, Takanashi, H, Ohki, A .  Effect of pretreatment conditions on the determination of trace elements in coal by use of atomic spectroscopy .  31st Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2014, 2014   2014Effect of pretreatment conditions on the determination of trace elements in coal by use of atomic spectroscopy

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)  

  • Ohki, A, Taira, M, Hirakawa, S, Nakajima, T, Takanashi, H .  Mercury contents in various low-sulfur bituminous coals from different countries: Relationship to coal properties .  31st Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2014, 2014   2014Mercury contents in various low-sulfur bituminous coals from different countries: Relationship to coal properties

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  • Tsunenori Nakajima, Ryo Kamito, Hirokazu Takanashi, Akira Ohki .  Reduction of selenate from simulated wet flue gas desulfurization wastewater using photocatalyst and microorganism .  Journal of Water and Environment Technology11 ( 5 ) 419 - 427   2013.10Reviewed

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    DOI: https://doi.org/10.2965/jwet.2013.419

  • AAir Pollution in Kagoshima City (Part 26) Investigation from April 2012 to March 2013 .    55   57 - 62   2013.10AAir Pollution in Kagoshima City (Part 26) Investigation from April 2012 to March 2013

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  • Tsunenori Nakajima, Hiroyuki Hasegawa, Hirokazu Takanashi, Akira Ohki .  Ecotoxicity of effluents from hydrothermal treatment process for low-rank coal .  Fuel104   36 - 40   2013.2Ecotoxicity of effluents from hydrothermal treatment process for low-rank coal Reviewed

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  • Hirokazu TAKANASHI, Misako KISHIDA, Kazuya ABIRU, Takashi KONDO, Takashi KAMEYA, Taku MATSUSHITA, Tsunenori NAKAJIMA and Akira OHKI .  A screening study on the mutagen formation potential of 44 pesticides .  Journal of Water Supply: Research and Technology - Aqua62 ( 1 ) 14 - 22   2013.2A screening study on the mutagen formation potential of 44 pesticidesReviewed

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  • Akira OHKI, Kentaro HAYASHI, Joji OHSAKO, Tsunenori NAKAJIMA and Hirokazu TAKANASHI .  Analysis of mercury and selenium during subcritical water treatment of fish tissue by various atomic spectrometric methods .  Microchemical Journal106   357 - 362   2013.1Analysis of mercury and selenium during subcritical water treatment of fish tissue by various atomic spectrometric methodsReviewed

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  • TAKANASHI Hirokazu, HAMASAKI Kenta, KATO Yusuke, NAKAJIMA Tsunenori, OHKI Akira, KONDO Takashi, KAMEYA Takashi, MATSUSHITA Taku .  Compilation of a List of Pesticide Transformation Products in Water Environments (PTPWs) .  Journal of Japan Society on Water Environment36 ( 2 ) 29 - 38   2013Reviewed

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society on Water Environment  

    There have been many reports regarding the concentrations of pesticides in environmental waters. In contrast, only a few studies of pesticide transformation products in water environments (PTPWs) could be found in the literature, which can be attributed to the lack of an established PTPW list. Pesticides sprayed in water environments are quickly degraded, producing PTPWs such as hydrolysates and oxidative degradation products. These PTPWs remain in surface water, and are then chlorinated in waterworks. Thus, monitoring PTPW concentrations in environmental waters, and studying PTPW removal in waterworks are important in order to provide chemically safe tap water. Thus, in the present study, a PTPW list consisting of 610 PTPWs of 145 pesticides reported in the Evaluation Reports published by the Pesticides Expert Committee, Food Safety Commission, and 73 PTPWs of 14 pesticides found by reviewing 12,269 scientific papers was compiled in order to promote monitoring studies of PTPWs in environmental waters and PTPW removal in waterworks.

    DOI: 10.2965/jswe.36.29

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  • HAYASHI Kentaro, OHSAKO Joji, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira .  Fractional Determination of Mercury Species in Biological Samples by Use of HPLC and Cold Vapor Atomic Fluorescence Spectrometry .  BUNSEKI KAGAKU61 ( 12 ) 1073 - 1077   2012.12Reviewed

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society for Analytical Chemistry  

    The combination of HPLC, oxidative decomposition by UV irradiation, and cold vapor atomic fluorescence spectrometry (HPLC-UV-CVAFS) was applied to the fractional determination of mercury species, which were contained in biological samples, such as seafood. Firstly, the extraction of mercury species from biological samples was studied, and it was found that 2-mercaptoethanol (2-ME), which has a mercapto group, was an effective extractant. For three certified reference materials, which have the certified values of the CH<sub>3</sub>Hg<sup>+</sup> concentration, extraction by a 2-ME solution and the HPLC-UV-CVAFS measurement were carried out. It was confirmed that the measured values were about the same as the certified values. The same analytical method was applied to real seafood samples. The sum of the CH<sub>3</sub>Hg<sup>+</sup> concentration and the Hg<sup>2+</sup> concentration in the extraction solution, which was obtained by the HPLC-UV-CVAFS measurement, was about the same as the total mercury concentration obtained by the heat vaporization atomic absorption spectrometry (HVAAS) measurement. Therefore, it is evident that the fractional determination of mercury species in biological samples was favorably performed when the extraction solution obtained by the 2-ME extraction was analyzed by HPLC-UV-CVAFS.

    DOI: 10.2116/bunsekikagaku.61.1073

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  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA and Taku MATSUSHITA .  Production of chloro-5-hydroxy-2-nitrobenzoic acid throughchlorination of 3-methyl-4-nitrophenol, a typical hydrolysate offenitrothion .  Journal of Water and Environment Technology10 ( 4 ) 437 - 447   2012.12Reviewed

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    DOI: https://doi.org/10.2965/jwet.2012.437

  • Tsunenori NAKAJIMA, Harue KAWAI, Yuki MINAMI, Hirokazu TAKANASHI, Akira OHKI .  Effect of the Addition of Chelators on Acute Toxicity of Some Heavy Metals to Freshwater Organisms .  Journal of Water and Environment Technology10 ( 4 ) 375 - 386   2012.12Effect of the Addition of Chelators on Acute Toxicity of Some Heavy Metals to Freshwater OrganismsReviewed

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    DOI: 10.2965/jwet.2012.375

  • 南 有紀、西村 彩、大山謙二、中島常憲、高梨啓和、大木 章 .  鹿児島市の大気汚染調査(第25 報) 2011 年度調査報告 .  鹿児島大学工学部研究報告54   35 - 40   2012.10鹿児島市の大気汚染調査(第25 報) 2011 年度調査報告

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  • T. Nakajima, H. Takanashi, T. Tominaga, K. Yamada, A. Ohki .  Removal of arsenic and selenium compounds from aqueous media by using TiO2 photocatalytic reaction .  Water Science and Technology: Water Supply12 ( 1 ) 24 - 30   2012.1Reviewed

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    A new method for the removal of arsenite [As(III)] and selenate [Se(VI)], which are difficult to remove by conventional water treatment methods from aqueous media, was investigated. This method involves the use of photocatalytic oxidation of As(III) and photocatalytic reduction of Se(VI). Also, a novel TiO2-adsorbent hybrid (HYB) which has photocatalyst sites and adsorbent sites on the same particle was developed. When the removal of As(III) by use of photocatalyst-adsorbent system and the HYB system was carried out, As(III) was effectively removed from aqueous phase. Moreover, with the removal of Se(VI) by using photocatalytic reduction, Se(VI) could also be removed from aqueous phase under the photocatalyst-adsorbent system and the HYB system, even if the concentration of a hole scavenger formic acid was reduced. © IWA Publishing 2012.

    DOI: 10.2166/ws.2011.090

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  • Kazuya Abiru, Hirokazu Takanashi, Misako Kishida, Tsunenori Nakajima, and Akira Ohki .  Mutagen formation potential (MFP) of Kotsuki river water and contribution of pesticides to the MFP .  Journal of Water and Environment Technology9 ( 4 ) 349 - 357   2011.12Mutagen formation potential (MFP) of Kotsuki river water and contribution of pesticides to the MFPReviewed

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  • 上山由貴、南有紀、大山謙二、中島常憲、高梨啓和、大木章 .  鹿児島市の大気汚染調査(第24 報) 平成22 年度調査報告 .  鹿児島大学工学部研究報告 ( 53 ) 31 - 36   2011.10鹿児島市の大気汚染調査(第24 報) 平成22 年度調査報告

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  • Akira Ohki, Kenta Yamada, Takuya Furuzono, Tsunenori Nakajima, Hirokazu Takanashi .  Analysis of trace elements in flue gas desulfurization water in the coal combustion system and the removal of boron and mercury from the water .  Energy and Fuels25 ( 8 ) 3568 - 3573   2011.8Reviewed

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    A detailed analysis was performed on the slurry supernatant water obtained from a wet flue gas desulfurization (FGD) system in a pilot plant of a coal combustion facility using five different coals. The determination of trace elements in those samples was performed by use of inductively coupled plasma-atomic emission spectrometry (ICP-AES), inductively coupled plasma-mass spectrometry (ICP-MS), and other methods, while the analysis of major cations and anions was conducted by ICP-AES and ion chromatography, respectively. The levels of B, Se, and Hg in the FGD water were sometimes high (44-62 mg/L for B, 0.24-0.37 mg/L for Se, and 0.11-0.23 mg/L for Hg), and these values exceeded the Japanese national effluent standards for terrestrial water (10, 0.1, and 0.005 mg/L for B, Se, and Hg, respectively). Simulated FGD water was prepared as a result of the analysis mentioned above, and the removal of those hazardous elements was attempted using various adsorbents, including N-methylglucamine resins (DIAION CRB02 and CRB05), a N-methylglucamine fiber (Chelest fiber GRY-L), an iminodiacetic acid resin (DIAION CR11), a polyamine resin (DIAION CR20), an anion-exchange resin (DOWEX 1X8), activated alumina, and activated carbon. For the simultaneous removal of B and Hg from the simulated FGD water, which contained 60 mg/L of B and 0.11 mg/L of Hg, CRB02 was the most effective and the percent removal values for B and Hg were 88 and 97%, respectively. The resulting water met the effluent standards. © 2011 American Chemical Society.

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  • 高梨啓和、大林慶一、寺岡行雄、甲斐敬美、近藤弘章、中島常憲、大木 章 .  森林情報を用いた木質ペレット販売原価算出方法の検討 .  環境科学会誌24 ( 3 ) 180 - 188   2011.5森林情報を用いた木質ペレット販売原価算出方法の検討Reviewed

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  • 高梨啓和、大林慶一、寺岡行雄、甲斐敬美、近藤弘章、中島常憲、大木 章 .  森林情報を用いた木質ペレット販売原価の試算 .  環境科学会誌24 ( 3 ) 189 - 197   2011.5森林情報を用いた木質ペレット販売原価の試算Reviewed

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  • Hirokazu Takanashi, Misako Kishida, Tsunenori Nakajima, Akira Ohki, Michihiro Akiba .  A level change in mutagenicity of Japanese tap water over the past 12yr .  Chemosphere83 ( 9 ) 1208 - 1213   2011.5Reviewed

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    A relative comparison study of mutagenicity in Japanese tap water was conducted for 1993 and 2005 surveys. It intended to assess the effects of advanced water treatment installations to water works, improvement of raw water quality and improvement of residual HOCl concentration controlling. Sampling points (taps) were the same in both surveys. The results of 245 samples obtained by the Ames Salmonella mutagenicity test (Ames test) were analyzed. The Ames tests were conducted by using Salmonella typhimurium TA98 and TA100 strains with and without exogenous activation (S9). With the exception of TA100-S9, the other conditions needed no discussion as a factor in the mutagenicity level change. The average mutagenicity in 1993 and 2005 under the conditions of TA100-S9 were 2600 and 1100 net revertantL-1, respectively. This indicated that the mutagenicity level of Japanese tap water decreased during the 12-yr period. Particularly a remarkable decrease in mutagenicity was observed in the water works where the advanced water treatments were installed during the 12-yr period. The advanced water treatments were effective in decreasing the mutagenicity of tap water. Mutagenicity also decreased in the water works with conventional water treatments; the improvement of residual HOCl concentration controlling was also considered to be effective in decreasing the mutagenicity of tap water. © 2011 Elsevier Ltd.

    DOI: 10.1016/j.chemosphere.2011.03.047

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  • Tsunenori NAKAJIMA, Kenta YAMADA, Hiroki IDEHARA, Hirokazu TAKANASHI, Akira OHKI .  Removal of Selenium (VI) from Simulated Wet Flue Gas Desulfurization Wastewater by Use of Photocatalytic Reduction .  Journal of Water and Environment Technology 9 ( 1 ) 13 - 19   2011.3Removal of Selenium (VI) from Simulated Wet Flue Gas Desulfurization Wastewater by Use of Photocatalytic ReductionReviewed

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    DOI: 10.2965/jwet.2011.13

  • Ohki, A, Nakajima, T, Takanashi, H .  Analysis of trace hazardous elements in flue gas desulfurization water and the removal of these elements from the water .  28th Annual International Pittsburgh Coal Conference 2011, PCC 2011, 2011, 2, pp. 1046-1055   2011Analysis of trace hazardous elements in flue gas desulfurization water and the removal of these elements from the water

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  • 河井晴恵, 上山由貴, 大山謙二, 中島常憲, 高梨啓和, 大木 章 .  鹿児島市の大気汚染調査(第23報)平成21年度調査報告 .  鹿児島大学工学部研究報告52   31 - 36   2010.10鹿児島市の大気汚染調査(第23報)平成21年度調査報告

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  • Misako KISHIDA, Yusuke KATO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Yuichi MIYAKE .  Production of Trichloromethylphenol from Organophosphorus Pesticide Fenitrothion by Chlorination .  Journal of Water and Environment Technology8 ( 3 ) 185-191   2010.9Production of Trichloromethylphenol from Organophosphorus Pesticide Fenitrothion by ChlorinationReviewed

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  • Wenhua Geng, Takuya Furuzono, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Determination of total arsenic in coal and wood using oxygen flask combustion method followed by hydride generation atomic absorption spectrometry .  Journal of Hazardous Materials176 ( 42007 ) 356 - 360   2010.4Determination of total arsenic in coal and wood using oxygen flask combustion method followed by hydride generation atomic absorption spectrometryReviewed

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  • 井手原広季, 河井晴恵, 大山謙二, 中島常憲, 高梨啓和, 大木 章 .  鹿児島市の大気汚染調査(第22報)平成20年度調査報告 .  鹿児島大学工学部研究報告51   51 - 56   2009.10鹿児島市の大気汚染調査(第22報)平成20年度調査報告

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  • 高梨啓和、大林慶一、佐潟輝洋、寺岡行雄、甲斐敬美、筒井俊雄、中島常憲、大木 章 .  木質ペレットの製造に関する原単位および推算式の検討 .  環境科学会誌22 ( 4 ) 241 - 246   2009.8木質ペレットの製造に関する原単位および推算式の検討Reviewed

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  • Wenhua Geng, Rieko Komine, Toshiharu Ohta, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Arsenic speciation in marine product samples: Comparison of extraction-HPLC method and digestion-cryogenic trap method .  Talanta79 ( 2 ) 369 - 375   2009.7Reviewed

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    For the arsenic speciation in marine product samples, two types of pretreatment-analysis combination were compared. One is the combination of solvent extraction and high performance liquid chromatography (HPLC) followed by a highly sensitive arsenic detection, while the other is the combination of alkaline digestion and cryogenic trap (CT) method followed by a highly sensitive arsenic detection. For six certified reference materials (CRMs) of marine animal samples, the concentrations of arsenobetaine (AsB) obtained from the extraction-HPLC method were very consistent with those of trimethylated arsenic species measured by the digestion-CT method. For four seaweed samples, the determination of three arsenosugars (Sugar-1, Sugar-2, and Sugar-3) was favorably carried out by the extraction-HPLC method. Those seaweed samples were also subjected to the digestion-CT method, and the amounts of dimethylated arsenic species measured by the method were approximately equal to the sum of the amounts of dimethylarsinic acid (DMAA) and three arsenosugars (Sugar-1 + Sugar-2 + Sugar-3) obtained from the extraction-HPLC method. © 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.talanta.2009.03.067

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  • Wenhua Geng, Yasutaka Kumabe, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Analysis of hydrothermally-treated and weathered coals by X-ray photoelectron spectroscopy (XPS) .  Fuel88 ( 4 ) 644 - 649   2009.4Analysis of hydrothermally-treated and weathered coals by X-ray photoelectron spectroscopy (XPS)Reviewed

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  • Wenhua Geng, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Analysis of carboxyl group in coal and coal aromaticity by Fourier transform infrared (FT-IR) spectrometry .  Fuel88 ( 1 ) 139 - 144   2009.1Analysis of carboxyl group in coal and coal aromaticity by Fourier transform infrared (FT-IR) spectrometryReviewed

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  • Tsunenori Nakajima, Hiroyuki Hasegawa, Satomi Nakamata, Hirokazu Takanashi, Akira Ohki .  Mutagenicity of eluent by hot water extraction of various coals: Effect of chlorination .  Fuel87 ( 13-14 ) 3132 - 3136   2008.10Mutagenicity of eluent by hot water extraction of various coals: Effect of chlorinationReviewed

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  • 長谷川博之,井手原広季,大山謙二,中島常憲,高梨啓和,大木章 .  鹿児島市の大気汚染調査(第21報) 平成19年度調査報告 .  鹿児島大学工学部研究報告50   1 - 6   2008.10鹿児島市の大気汚染調査(第21報) 平成19年度調査報告

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  • Misako Kishida, Hirokazu Takanashi, Hiroki Kofune, Tsunenori Nakajima, Akira Ohki .  Mutagen Formation Potential of Composite Samples Prepared by Biodegradation of Agricultural Chemicals .  Journal of Water and Environment Technology6 ( 1 ) 19 - 33   2008.10Mutagen Formation Potential of Composite Samples Prepared by Biodegradation of Agricultural ChemicalsReviewed

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  • Wenhua Geng, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Determination of mercury in ash and soil samples by oxygen flask combustion method-Cold vapor atomic fluorescence spectrometry (CVAFS) .  Journal of Hazardous Materials154 ( 42007 ) 325 - 330   2008.6Determination of mercury in ash and soil samples by oxygen flask combustion method-Cold vapor atomic fluorescence spectrometry (CVAFS)Reviewed

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  • Wenhua Geng, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Utilization of oxygen flask combustion method for the determination of mercury and sulfur in coal .  Fuel87 ( 4-5 ) 559 - 564   2008.4Reviewed

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    By use of oxygen flask combustion (OFC), a rapid and convenient determination method for mercury (Hg) and sulfur (S) in coal was developed. For the determination of Hg in coal, the OFC method with a KMnO4 solution as an absorbent was carried out, and the resulting solution was analyzed by cold vapor atomic fluorescence spectrometry (CVAFS). For six certified reference material coals, the Hg concentrations obtained by this method were in good accordance with the certified or reference values. In addition, nine brands of Japanese standard coals (SS coals) were analyzed by the present method, and the data were compared to those from the authentic microwave-acid digestion (MW-AD) method. For the determination of total S in coal, the OFC method with H2O2 solution as an absorbent followed by ICP-AES or precipitation titration was successfully applied. © 2007 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.fuel.2007.02.026

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  • Akira Ohki, Kota Sagayama, Shomei Tanamachi, Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi .  Release behavior of mercury during mild pyrolysis of coals and nitric acid-treated coals .  Powder Technology180 ( 1-2 ) 30 - 34   2008.1Reviewed

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    Seven powdery coals (four SS coals and three Argonne premium coals) were subjected to pyrolysis at 300 °C under a flow of nitrogen, and the release of Hg from coal was examined. The % release of Hg greatly varied from 24 to 83% depending upon the type of coals. In order to remove pyrite from coal, powdery coal was treated with 0.5 M HNO3 at 80 °C. The HNO3-treated coals were also subjected to the 300 °C-pyrolysis, and the release of Hg was evaluated. Even for coals, which gave low %Hg release when the raw coal was pyrolyzed, nearly complete release of Hg was attained when the treated coal was pyrolyzed. The release behavior of Hg was discussed on the basis of the mode of occurrence of Hg in coal. © 2007 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.powtec.2007.03.004

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  • 緒方秀樹,長谷川博之,大山謙二,中島常憲,高梨啓和,大木章 .  鹿児島市の降下ばいじんおよび二酸化窒素汚染の調査 -1997~2006年の10年間のまとめ- .  鹿児島大学工学部研究報告49   7 - 12   2007.10鹿児島市の降下ばいじんおよび二酸化窒素汚染の調査 -1997~2006年の10年間のまとめ-

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  • 緒方秀樹,長谷川博之,大山謙二,中島常憲,高梨啓和,大木章 .  鹿児島市の大気汚染調査(第20報) 平成18年度調査報告 .  鹿児島大学工学部研究報告49   13 - 18   2007.10鹿児島市の大気汚染調査(第20報) 平成18年度調査報告

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  • Tsunenori Nakajima, Ken Kuzumaki, Hiroyuki Hasegawa, Hirokazu Takanashi, Akira Ohki .  Environmental impacts of wastewater from low-rank coal handling processes in terms of mutagenicity and acute toxicity .  WIT Transactions on Biomedicine and Health, vol. 11, Environmental Health Risk IV11   197 - 206   2007.6Environmental impacts of wastewater from low-rank coal handling processes in terms of mutagenicity and acute toxicityReviewed

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  • Wenhua Geng, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Determination of total fluorine in coal by use of oxygen flask combustion method with catalyst .  Fuel86   715 - 721   2007.3Determination of total fluorine in coal by use of oxygen flask combustion method with catalystReviewed

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  • Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki, Y. Fujita, T. Yamashita .  Determination of trace elements in coal and coal fly ash by joint-use of ICP-AES and atomic absorption spectrometry .  Talanta71   251 - 257   2007.1Determination of trace elements in coal and coal fly ash by joint-use of ICP-AES and atomic absorption spectrometryReviewed

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  • Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki, Yoshio Fujita, Toru Yamashita .  Effect of pretreatment conditions on the determination of major and trace elements in coal fly ash using ICP-AES .  Fuel85 ( 2 ) 257 - 263   2006.1Reviewed

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    Microwave-assisted acid digestion (MW-AD) followed by atomic spectrometries such as inductively coupled plasma-atomic emission spectrometry (ICP-AES) was examined for the determination of major and trace elements in coal fly ash (CFA). Effective digestion conditions were studied using four certified reference materials of CFA, with particular focus on the composition of acid mixture and the removal of HF after MW-AD. When MW-AD was conducted without using HF (HNO3+H2O2), the tested elements yielded fairly poor recoveries. When MW-AD with HF (HNO3+HF+H 2O2) was carried out, two methods for HF removal were attempted, H3BO3 addition and evaporation of acids. In the former method, while the recoveries of major elements (Al, Ca, Fe, and Mg) were satisfactory, those of trace elements were not satisfactory; in particular, the recovery of Pb was fairly low. In the latter method, the recoveries of Al, Ca, and Mg were extremely poor; however, those of other elements including the trace elements (Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn) were satisfactory. In this paper, the optimization of the digestion method for ICP-AES is discussed. Further, the advantages and limitations of ICP-AES in the determination of elements in CFA are assessed. © 2005 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.fuel.2005.04.034

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  • 岡田章吾、緒方秀樹、大山 謙二、中島 常憲、高梨 啓和、大木 章 .  鹿児島市の大気汚染調査(第19報)平成17年度調査報告 .  鹿児島大学工学部研究報告48   2006鹿児島市の大気汚染調査(第19報)平成17年度調査報告

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  • Hirokazu Takanashi, Yoshimitsu Uemura, Takami Kai, Toshio Tsutsui, Tsunenori Nakajima, Akira Ohki, Yauo Matsumoto, Motoyuki Suzuki .  Utilization of hydroelectric power and biomass energy in Yakushima Island-Role of fuel cell and biomass boiler" .  The 4th China/USA/Japan Joint Chemical Engineering Conference and the 3rd China/Japan Joint Chemical Engineering Symposium   2005.10Utilization of hydroelectric power and biomass energy in Yakushima Island-Role of fuel cell and biomass boiler"

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  • Tsunenori Nakajima, Tomohide Kanda, Takashi Fukuda, Hirokazu Takanashi, Akira Ohki .  Characterization of eluent by hot water extraction of coals in terms of total organic carbon and environmental impacts .  Fuel84   783 - 789   2005.5Characterization of eluent by hot water extraction of coals in terms of total organic carbon and environmental impactsReviewed

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  • Tsunenori Nakajima, Yan Hua Xu, Yuko Mori, Mayumi Kishita, Hirokazu Takanashi, Shigeru Maeda, Akira Ohki .  Combined use of photocatalyst and adsorbent for the removal of inorganic arsenic(III) and organoarsenic compounds from aqueous media .  Journal of Hazardous Materials120 ( 1-3 ) 75 - 80   2005.4

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    A novel method for the removal of inorganic arsenic(III) (As(III)), monomethylarsonate (MMA), and dimethylarsinate (DMA) from aqueous media, was proposed and investigated. This method involves the combined use of TiO 2-photocatalyst and an adsorbent, which has a high ability of As(V) adsorption, under photo-irradiation. When an aqueous solution of As(III) was stirred and irradiated by sunlight or xenon lamp in the presence of TiO 2 suspension, the oxidation of As(III) into As(V) was effectively attained. By use of the same photocatalytic reaction, MMA and DMA were also degraded into As(V), while the total organic carbon (TOC) in the aqueous phase was decreased. When an aqueous solution of As(III) was stirred with a mixed suspension of TiO2 and an adsorbent for As(V) (activated alumina) under sunlight irradiation, the arsenic removal reached 89% after 24 h. By use of the same photocatalyst-adsorbent system, 98% of MMA and 97% of DMA were removed. The mechanism of the removal of arsenic species by the photocatalyst-adsorbent system was discussed. © 2005 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.jhazmat.2004.11.030

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  • Akira Ohki, Tsunenori Nakajima, Yuka Sakaguchi, Akira Iwashita, Hirokazu Takanashi .  Analysis of arsenic and some other elements in coal fly ash by X-ray photoelectron spectroscopy .  Journal of Hazardous Materials119 ( 1-3 ) 213 - 217   2005.3Reviewed

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    Surface characterization of coal fly ash (CFA) was carried out by use of X-ray photoelectron spectroscopy (XPS), especially focusing on the occurrence of As. A peak in the XPS spectrum of CFA was assigned to oxide forms of As(3d). The molar ratios of Al, As, Ca, Fe, and S normalized to Si were obtained from XPS analysis (MR-X). Also, the molar ratios of those elements were calculated from bulk analysis (total element concentration in CFA) (MR-B). The MR-X/MR-B ratio of As was much higher than those of other elements, suggesting that As is highly enriched on the surface of CFA. When eight CFA samples were analyzed, there was an approximate relationship between the MR-X values and MR-B values for As. The leaching of elements from CFA was examined by XPS analysis and by bulk analysis. The leaching tests using EDTA and HNO3 resulted in a great decrease in the As(3d) peak area; the %leaching of As obtained by XPS analysis was almost equal to that by bulk analysis. © 2005 Elsevier B.V. All rights reserved.

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  • Yanhua Xu, Akira Iwashita, Tsunenori Nakajima, Hiroyuki Yamashita, Hirokazu Takanashi, Akira Ohki .  Effect of HF addition on the microwave-assisted acid-digestion for the determination of metals in coal by inductively coupled plasma-atomic emission spectrometry .  Talanta66   58 - 64   2005.3Effect of HF addition on the microwave-assisted acid-digestion for the determination of metals in coal by inductively coupled plasma-atomic emission spectrometryReviewed

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  • Akira Iwashita, Y. Sakaguchi, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki, S. Kambara .  Leaching characteristics of boron and selenium for various coal fly ashes .  Fuel84   479 - 485   2005.3Leaching characteristics of boron and selenium for various coal fly ashesReviewed

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  • NAKAJIMA Tsunenori .  Studies on Analysis and Pollution Control Technology for Hazardous Trace Elements Present in the Environment .      2005.3Studies on Analysis and Pollution Control Technology for Hazardous Trace Elements Present in the Environment

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    Authorship:Lead author   Language:Japanese   Publishing type:Doctoral thesis   Publisher:Kagoshima University  

  • Tsunenori Nakajima, Takanori Kawabata, Hirofumi Kawabata, Hirokazu Takanashi, Akira Ohki, Shigeru Maeda .  Degradation of phenylarsonic acid and its derivatives into arsenate by hydrothermal treatment and photocatalytic reaction .  Applied Organometallic Chemistry19 ( 2 ) 254 - 259   2005.2Reviewed

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:JOHN WILEY & SONS LTD  

    The degradation of phenylarsonic acid (PA) and its derivatives by hydrothermal treatment (HTT) was examined, especially focusing on the effect of adding H2O2 upon the degradation efficiency. The degradation was assessed by the generation of arsenate resulting from the cleavage of As-C bonds in the PA derivatives. When PA (without substituents) was subjected to an HTT with H2O2 (H2O 2-HTT; 0.5-1% H2O2) at 175-200 °C, PA was almost completely degraded into arsenate, whereas an HTT with NaOH (NaOH-HTT; 3 M NaOH) at the temperatures provided almost no degradation. The H 2O2-HTT also worked well for the degradation of PA derivatives with hydroxy and/or nitro groups on the phenyl ring. However, the degradation of aminophenylarsonic acids was not favorably performed by the H2O2-HTT. The effect of the structure of PA derivatives upon the degradation susceptibility was discussed. A photocatalytic reaction using TiO2 was also attempted for the degradation of PA derivatives. Copyright © 2005 John Wiley & Sons, Ltd.

    DOI: 10.1002/aoc.720

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  • 淺岡哲郎、大山謙二、中島常憲、高梨啓和、大木 章 .  鹿児島市の大気汚染調査(第18報)平成16年度調査報告 .  鹿児島大学工学部研究報告47   93 - 98   2005鹿児島市の大気汚染調査(第18報)平成16年度調査報告

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  • Hirokazu Takanashi, Akiko Tanaka, Tsunenori Nakajima, Akira Ohki .  Arsenic removal from groundwater by a newly developed adsorbent .  Water Science and Technology50 ( 8 ) 23 - 32   2004.12Arsenic removal from groundwater by a newly developed adsorbentReviewed

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  • Akira Ohki, Tsunenori Nakajima, Hiroyuki Yamashita, Akira Iwashita, Hirokazu Takanashi .  Leaching of various metals from coal into aqueous solutions containing an acid or a chelating agent .  Fuel Processing Technology85   1089 - 1102   2004.7Leaching of various metals from coal into aqueous solutions containing an acid or a chelating agentReviewed

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  • Akira Iwashita, S. Tanamachi, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki .  Removal of mercury from coal by mild pyrolysis and leaching behavior of mercury .  Fuel83   631 - 638   2004.4Removal of mercury from coal by mild pyrolysis and leaching behavior of mercuryReviewed

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  • 小城裕史、浅岡哲朗、大山謙二、中島常憲、高梨啓和、大木 章 .  鹿児島市の大気汚染調査(第17報)平成15年度調査報告 .  鹿児島大学工学部研究報告46   121 - 126   2004鹿児島市の大気汚染調査(第17報)平成15年度調査報告

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  • NAKAJIMA Tsunenori, FUKUYAMA Hideto, MITSUNAGA Hiroyuki, TAKANASHI Hirokazu, MAEDA Shigeru, OHKI Akira .  Method for Determination of Antimony in Environmental Samples .  Environmental science15 ( 6 ) 399 - 406   2002.11Reviewed

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Yan Hua Xu, Tsunenori Nakajima, Akira Ohki .  Adsorption and removal of arsenic(V) from drinking water by aluminum-loaded Shirasu-zeolite .  Journal of Hazardous Materials92 ( 3 ) 275 - 287   2002.6Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE BV  

    The demand for effective and inexpensive adsorbents is to increase in response to the widespread recognition of the deleterious health effects of arsenic exposure through drinking water. A novel adsorbent, aluminum-loaded Shirasu-zeolite P1 (Al-SZP1), was prepared and employed for the adsorption and removal of arsenic(V) (As(V)) ion from aqueous system. The process of adsorption follows first-order kinetics and the adsorption behavior is fitted with a Freundlich isotherm. The adsorption of As(V) is slightly dependent on the initial pH over a wide range (3-10). Al-SZP1 was found with a high As(V) adsorption ability, equivalent to that of activated alumina, and seems to be especially suitable for removal of As(V) in low concentration. The addition of arsenite, chloride, nitrate, sulfate, chromate, and acetate ions hardly affected the As(V) adsorption, whereas the coexisting phosphate greatly interfered with the adsorption. The adsorption mechanism is supposed as a ligand-exchange process between As(V) ions and the hydroxide groups present on the surface of Al-SZP1. The adsorbed As(V) ions were desorbed effectively by a 40mM NaOH solution. Continuous operation was demonstrated in a column packed with Al-SZP1. The feasibility of this technique to practical utilization was also assessed by adsorption/desorption multiple cycles with in situ desorption/regeneration operation. © 2002 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/S0304-3894(02)00020-1

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  • Suhendrayatna, Akira Ohki, Tsunenori Nakajima, Shigeru Maeda .  Studies on the accumulation and transformation of arsenic in freshwater organisms I. Accumulation, transformation and toxicity of arsenic compounds on the Japanese Medaka, Oryzias latipes .  Chemosphere46 ( 2 ) 319 - 324   2002Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:PERGAMON-ELSEVIER SCIENCE LTD  

    Accumulation, transformation and toxicity of arsenic compounds to Japanese Medaka, Oryzias latipes were investigated. For sodium arsenite [As(III)] and disodium arsenate [As(V)], the mean value for 7-day lethal concentration LC50 for O. latipes were 14.6 and 30.3 mg As/l, respectively. Direct accumulation of arsenic in O. latipes increased as a function of As(III) concentration in water. A small proportion of accumulated arsenic was transformed to methylated arsenic. As much as 70% of the total arsenic accumulated in tissue was depurated. Accumulation and transformation of As(III) by O. latipes in a simple freshwater food chain were also investigated. The transformation of As(III) to As(V) by organisms was more prevalent than biomethylation of accumulated arsenic in organisms of the three steps of the food chain. © 2002 Elsevier Science Ltd. All rights reserved.

    DOI: 10.1016/S0045-6535(01)00084-4

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  • Suhendrayatna, Akira Ohki, Tsunenori Nakajima, Shigeru Maeda .  Studies on the accumulation and transformation of arsenic in freshwater organisms II. Accumulation and transformation of arsenic compounds by Tilapia mossambica .  Chemosphere46 ( 2 ) 325 - 331   2002Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:PERGAMON-ELSEVIER SCIENCE LTD  

    Bioaccumulation and biotransformation of arsenic (As) compounds in freshwater Tilapia mossambica was investigated. The direct accumulation of As by T. mossambica was proportional to the concentration of arsenicals in water. Small amounts of accumulated As were transformed to methylated As, including trimethylarsenic (TMA) species. Accumulation and transformation of As(III) by T. mossambica via freshwater food chain results in the transformation of As(III) to As(V) with little biomethylation of accumulated As. Approximately 90% of accumulated As was depurated to water. © 2002 Elsevier Science Ltd. All rights reserved.

    DOI: 10.1016/S0045-6535(01)00085-6

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  • Yan‐Hua Xu, Tsunenori Nakajima, Akira Ohki .  Leaching of arsenic from coal fly ashes 1. Leaching behavior of arsenic and mechanism study .  Toxicological and Environmental Chemistry81 ( 1-2 ) 55 - 68   2001.5Reviewed

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    The leaching of arsenic from coal fly ash NIST-1633b and NIST-2689 was tried with various lixiviants. The leaching of arsenic was found to have taken place readily and to be dependent on both the equilibria of dissolution/precipitation and adsorption/desorption in the leaching system. The arsenic leaching intensity was significantly elevated by the use of proper chelating agents, which is supposed to be owing to the formation of metal (aluminium and/or iron)-chelate complexes followed by an enhanced binding with arsenate ions. The results of the present study show that arsenic oxides are associated well with iron and aluminium oxide deposits on the particle surface of coal fly ash NIST-1633b. Surface enrichment for arsenic was also examined and confirmed by XPS measurement. The leaching percentages of arsenic on the surface from XPS detection were in good agreement with those in bulk found in the leaching tests.

    DOI: 10.1080/02772240109359019

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  • Yan‐Hua Xu, Tsunenori Nakajima, Akira Ohki .  Leaching of Arsenic from coal fly ashes 2. Arsenic Pre-leaching with sodium gluconate solution .  Toxicological and Environmental Chemistry81 ( 1-2 ) 69 - 80   2001.5Reviewed

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    The present study deals with the development of an efficient and reliable process for safe disposal of coal fly ash to remove arsenic that has been found to be the most easily leachable and hazardous heavy metal in coal fly ash. Pre-leaching of fly ash prior to disposal by a natural chelating agent, sodium gluconate (SG), was proposed and studied. Several operational factors influencing arsenic leachability, such as concentration of SG solution, liquid to solid ratio, pH, length of leaching time and leaching temperature were examined. Arsenic was found to leach out substantially with SG, but almost no further release was observed from the ash pre-leached by SG. After the pre-leaching treatment, the desirable high buffering capacity of the ash was well sustained. SG solution was effectively regenerated by activated alumina adsorption so that it could be successfully reused for multiple leaching/adsorption cycles.

    DOI: 10.1080/02772240109359020

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  • Suhendrayatna, Akira Ohki, Tsunenori Nakajima, Shigeru Maeda .  Metabolism and organ distribution of arsenic in the freshwater fish Tilapia mossambica .  Applied Organometallic Chemistry15 ( 6 ) 566 - 571   2001Reviewed

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:JOHN WILEY & SONS LTD  

    Arsenic concentration and arsenic speciation in the liver, intestine, ovary, bone, brain, muscle, gill and eye of the freshwater fish Tilapia mossambica exposed to arsenic were investigated. The profile of arsenic distribution in tissues of T. mossambica after exposure to a medium containing arsenate was brain 〉 intestine 〉 ovary 〉 eyes 〉 muscle 〉 gill 〉 bone 〉 liver. The minimum content of arsenic is in liver tissue (2.5 μgAs g-1 dry weight), whereas the maximum content is in brain tissue (61.8 μgAs g-1 dry weight). Arsenic accumulated in liver tissue was present as methylated arsenic species, and no inorganic arsenic species were found in liver tissue. A notable exception is in brain tissue. Most arsenic accumulated in brain tissue was inorganic arsenic species, and no methylated arsenic was found in brain tissue. In a dietary exposure treatment, the maximum arsenic accumulation in the tissue of T. mossambica fed with Neocaridina denticulata dosed with arsenic from a Chlorella vulgaris diet (via the food chain) is in the ovary (7.4 μgAs g-1 dry weight), followed by gill, liver, muscle, bone, brain, eyes and intestine. Trace amounts of methylated arsenic were found in liver tissue in this treatment. Methylated arsenic in fish exposed via water was more evenly distributed in the organs compared with dietary exposure. Copyright © 2001 John Wiley & Sons, Ltd.

    DOI: 10.1002/aoc.211

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  • YH Xu, A Ohki, T Kabashima, T Nakajima, S Maeda .  Removal of heavy metals in coal by unused natural resources .  PROSPECTS FOR COAL SCIENCE IN THE 21ST CENTURY   1099 - 1102   1999Removal of heavy metals in coal by unused natural resources

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:SHANXI SCIENCE & TECHNOLOGY PRESS  

    Alginic acid was hydrothermally treated at 150 degrees C in an autoclave. By use of the resulting hydrothermally-treated arginic acid (HTTAA), the leaching of Pb from coals, such as NIST-1632b, has been examined. The Pb leaching ability of HTTAA is comparable to that of EDTA.

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  • A Ohki, XF Xie, Y Umihira, T Nakajima, S Maeda .  Properties of hydrothermally-treated coals and the coal water mixture (CWM) .  PROSPECTS FOR COAL SCIENCE IN THE 21ST CENTURY   1103 - 1106   1999Properties of hydrothermally-treated coals and the coal water mixture (CWM)

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:SHANXI SCIENCE & TECHNOLOGY PRESS  

    An Australian low-rank coal, Loy Yang, was hydrothermally treated at 200-350 degrees C in an autoclave. As the heat-treatment temperature (HTT) is raised, the hygroscopicity of coal gradually decreases and the amount of bound water in coal also decreases. A coal-water mixture (CWM) was prepared from the raw and hydrothermally treated coals by use of an additive, poly(styrenesulfonate) (PSS), and the fluidity and static stability of CWM were assessed. "Achievable coal concentration (ACC)" is defined as the coal concentration in CWM when the CWM viscosity reaches 1.0 pas. The ACC value for raw coal is 33.4 wt%, becoming 62.3 wt% when the 350 degrees C-treated coal is used.

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  • Akira Ohki, Xiao-Feng Xie, Tsunenori Nakajima, Toshio Itahara, Shigeru Maeda .  Change in properties and combustion characteristics of an indonesian low-rank coal due to hydrothermal treatment .  International Journal of Coal Preparation and Utilization21 ( 1 ) 23 - 34   1999

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    An Indonesian low-rank coal, Adaro, was hydrothermally treated at 200-350°C in an autoclave. The raw and treated coals have been subjected to several analyses which include hygroscopicity, the content of oxygenic functional groups, FTIR spectrum, and specific surface area. When the coal is hydrothermally treated, the hygroscopicity of coal remarkably decreases. The content of carboxyl group in coal greatly decreases as the heat treatment temperature (HTT) is raised. From FTIR analysis, the methyl/methylene ratio in coal somewhat increases, especially when the coal is treated at 350°C
    while the aromaticity of coal is enhanced a little. Due to the hydrothermal treatment, the ignition temperature (T i) shifts to a high temperature
    whereas the temperature, at which the maximum combustion rate occurs (T m), is not so changed. The change in the properties of coal and the combustion characteristics is discussed. © 1999 OPA (Overseas Publishers Association) N.V.

    DOI: 10.1080/07349349908945606

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  • Xiao Feng Xie, Akira Ohki, Koichiro Morimatsu, Tsunenori Nakajima, Hirokazu Oda, Shigeru Maeda .  Surface Properties of Coals Upgraded by Hydrothermal Treatment .  Journal of the Japan Institute of Energy77 ( 6 ) 478 - 484   1998.6

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    Publisher:Maruzen Co. Ltd.  

    The properties of coal when the coal was hydrothermally treated at 150-350°C were examined with particular emphasis on the surface properties. The analysis of coal properties includes hygroscopicity, the content of functional groups measured by chemical analysis and FT-IR, elemental analysis, specific surface area, maceral composition, and vitrinite reflectance. Two Australian low rank coals, Loy Yang coal and Yallourn coal, were tested; while a subbituminous coal and a high rank coal were subjected to the same treatment for comparison. When the low rank coals were hydrothermally treated, the hygroscopicity of coal remarkably decreased, becoming comparable to that for high rank coals after the 350°C treatment. The content of carboxyl group greatly decreased as heat treatment temperature (HTT) was raised; whereas decrease in the content of phenolic hydroxyl group was rather small. After the hydrothermal treatment, exinite maceral in the coal almost disappeared and the absorbance for aliphatic carbon in FT-IR spectrum was somewhat raised. From these results, the change in the coal properties during the hydrothermal treatment is discussed.

    DOI: 10.3775/jie.77.478

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  • Akira Ohki, Masato Tsurugasaki, Tsunenori Nakajima, Kensuke Naka, Shigeru Maeda .  Adsorption Behavior of Polyanion Additives and Coal-Water Mixture Properties .  Proc. 20th Intern. Conf. on Goal Utilization and Fuel Systems, Clearwater, Florida   75 - 86   1995.3Adsorption Behavior of Polyanion Additives and Coal-Water Mixture Properties

  • TANAKA Atsushi, FUJITA Hiroki, TAKANASHI Hirokazu, NAKAJIMA Tsunenori .  Immobilization of hazardous elements in coal ash by hydroxyapatite .  Proceedings of Conference on Coal Science57 ( 0 ) 40 - 41   2020.11

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    Authorship:Last author, Corresponding author   Language:Japanese   Publishing type:Research paper (other academic)   Publisher:The Japan Institute of Energy  

    <p>Coal ash contains hazardous elements such as arsenic, boron, chromium, and selenium. These hazardous elements easily leach into the environment. In order to control the leaching of these elements, an aging treatment of coal ash has been recently studied. It is considered that these hazardous elements are immobilized by the generation of ettringite on the aged coal ash. However, ettringite is not stable under acidic condition. In this study, immobilization of hazardous elements, such as arsenic, boron, chromium, and selenium, by the generation of hydroxyapatite was investigated. Hydroxyapatite is stable and does not break down under acidic conditions. When an aging process was carried out under the addition of CaO and P<sub>2</sub>O<sub>5</sub>, hydroxyapatite was generated on the coal ash and the leaching amount of arsenic, boron, chromium, and selenium from coal ash was effectively reduced. These results suggest that hydroxyapatite contributes to the immobilization of these hazardous elements.</p>

    DOI: 10.20550/jiesekitanronbun.57.0_40

  • TANAKA Atsushi, FUJITA Hiroki, MURAKAMI Nagi, NAKAJIMA Tsunenori, TAKANASHI Hirokazu .  Effect of ash composition immobilization of hazardous elements in simulated coal ash sample .  Proceedings of Conference on Coal Science56 ( 0 ) 22 - 23   2019

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    Authorship:Corresponding author   Language:Japanese   Publisher:The Japan Institute of Energy  

    <p>Coal ash contains hazardous elements such as arsenic, boron, chromium, and selenium. These hazardous elements easily leach into the environment. In order to control their leaching, the aging of coal ash were developed, recently. In this study, the effect s of ash composition, such as calcium content in original coal ash, onto the immobilization ability of arsenic, boron, chromium, and selenium in the aged coal ash was investigated using simulated coal ash samples which have various calcium contents. When high calcium containing simulated coal ash samples were aged for a week, the leaching amount of arsenic, boron, and selenium from the simulated ash samples was effectively reduced and the formation of ettringite was observed on the surface of aged ash samples. From the results, the contribution of ettringite formation to the immobilization of hazardous elements was suggested.</p>

    DOI: 10.20550/jiesekitanronbun.56.0_22

  • Kawaguchi Yuta, Murakami Nagi, Nakajima Tsunenori, Takanashi Hirokazu, Ohki Akira .  Elution of fluorine and development of analysis method using oxygen flask combustion in coal and coal ash .  Proceedings of Conference on Coal Science55 ( 0 ) 22 - 23   2018

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    Publisher:The Japan Institute of Energy  

    <p>As a result of elution test on coal ash, elution beyond the soil environmental standard value was confirmed. So, it is important to develop a simple analytical method for development of suppression technology. In this study, analysis of fluorine content in coal and coal ash was carried out by simple and quick method of analysis using oxygen flask combustion method (OFC) from the conventional method. We analyzed content by OFC and fluoride ion electrode (FISE) using several coal certified substances. As a result, it was found that the recovery rate tends to be low for samples with high fluorine content and high ash content. It was considered that the mineral that the melting point and decomposition temperature contained in coal is high and the effect of the reaction promoter (WO 3, Sn) can not be obtained lowers the recovery rate.</p>

    DOI: 10.20550/jiesekitanronbun.55.0_22

  • FUJITA Hiroki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira .  Immobilization of Hazardous Elements in Coal Ash by Aging Process .  Proceedings of Conference on Coal Science55 ( 0 ) 20 - 21   2018

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    Publisher:The Japan Institute of Energy  

    <p>Coal fly ash(CFA),which contains hazardous elements such as selenium and boron. These elements are easily leached out to water environment and contaminate the surface and groundwater. The leaching amount of these hazardous elements from CFAs exceeded the environmental standards of soil and landfill sometimes. In this study, effects of aging process on the leaching of hazardous elements from CFAs was examined. The leaching amount of selenium, boron, chromium and fluorine from CFAs decreased with the lapse of aging time. Selenium leaching from aged CFAs was influenced by the calcium content in original CFAs. The results of XRD analysis indicated selenium in aged CFAs was immobilized by hydrated minerals such as ettringite.</p>

    DOI: 10.20550/jiesekitanronbun.55.0_20

  • NAKAJIMA Tsunenori, Takemoto Mana, Fujita Hiroki, Fujishima Hiroki, TAKANASHI Hirokazu, OHKI Akira, Furuzono Takuya .  Effect of aging process on leaching of trace elements from coal fly ash .  Proceedings of Conference on Coal Science54 ( 0 ) 116 - 117   2017

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    Publisher:The Japan Institute of Energy  

    <p>Coal fly ash (CFA), which contains toxic elements such as selenium and boron. These elements are easily leached out to water environment and contaminate surface and ground waters. In this study, the leaching of Se and other trace elements from CFA samples was examined. When CFA samples were subjected to the leaching test which was referred to the notification No. 46 of the Japan environment agency leaching test, the leaching amount of B, Cr, and Se from original-CFA exceeded the standards of soil. The leaching amount of Cr was less than the standard for landfill, although that of Se was not satisfied to the standard for landfill. Also, the leaching of these elements from aged CFA sample was examined and the leaching amount of these elements degreased with the lapse of aging time.</p>

    DOI: 10.20550/jiesekitanronbun.54.0_116

  • Report on the 46th Conference of Coal Science .  Journal of the Japan Institute of Energy89 ( 2 ) 182 - 184   2010.2

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    Publisher:The Japan Institute of Energy  

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  • 中島常憲,園田拓哉,古賀朝陽,高梨啓和   ヒドロキシアパタイトを利用した固体環境試料から溶出する有害アニオン種の不溶化  

    第56回日本水環境学会年会  2022.3  日本水環境学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:WEB開催  

  • 高梨啓和,中島常憲,鈴木裕識,澤井淳   質量分析データと化学物質探索システムを用いた環境試料中の物質推定  

    第56回日本水環境学会年会  2022.3  日本水環境学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Poster presentation  

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  • 酒井俊貴,郭書彦,高梨啓和,中島常憲   高分解能質量分析と量子化学計算を用いた未知環境汚染物質の自動構造解析方法の開発  

    第56回日本水環境学会年会  2022.3  日本水環境学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 山田奈瑠実,高梨啓和,中島常憲   未知環境汚染物質の物質推定におけるGC/FI/MS の誤同定回避効果の検証  

    第56回日本水環境学会年会  2022.3  日本水環境学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 中村友拓,高梨啓和,中島常憲,上田岳彦   進行波イオン移動度質量分析を用いた未知環境汚染物質の新規構造推定技術の開発  

    第56回日本水環境学会年会  2022.3  日本水環境学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 中島瞭太、園田拓哉、古賀朝陽、高梨啓和、中島 常憲   石炭灰中でのセレン置換型ヒドロキシアパタイト生成におけるリン添加量の影響  

    日本分析化学会第70年会  2021.9  日本分析化学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

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  • 山下一青、高梨啓和、中島常憲   酸素フラスコ燃焼法とデジタル画像解析を組み合わせた食品中ヒ素の簡易分析法の開発  

    日本分析化学会第70年会  2021.9  日本分析化学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

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  • 古賀朝陽、園田拓哉、徳満敦哉、高梨啓和、中島 常憲   ヒドロキシアパタイトを用いた水田土壌中ヒ素不溶化技術の開発  

    日本分析化学会第70年会  2021.9  日本分析化学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

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  • 酒井俊貴、高梨啓和、中島常憲   流入下水中のジシクロヘキシルアミンの同定とリスク評価  

    環境科学会2021年会  2021.9  環境科学会

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    Language:Japanese   Presentation type:Poster presentation  

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  • 山下優輝、新福優太、高梨啓和、中島常憲、秋葉 道宏   水道水生ぐさ臭原因物質を自動検出するためのマススペクトルと保持指標の取得  

    環境科学会2021年会  2021.9  環境科学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:WEB開催  

  • 中村友拓、高梨啓和、中島常憲、上田岳彦   高分解能質量分析による構造推定が困難な環境汚染物質の新規構造推定技術の開発  

    環境科学会2021年会  2021.9  環境科学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:WEB開催  

  • 山田奈瑠実、高梨啓和、中島常憲   下水に含まれる有害化学物質のスクリーニング分析における誤同定回避方法の検討  

    環境科学会2021年会  2021.9  環境科学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:WEB開催  

  • 中島常憲、園田拓哉、古賀朝陽、髙梨啓和   水田土壌中でのヒ素置換型ヒドロキシアパタイト合成によるコメ中ヒ素低減  

    環境科学会2021年会  2021.9  環境科学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:WEB開催  

  • Yuta SHINFUKU, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Michihiro AKIBA   An Exploration of the Causative Substance of Fishy Smell in Raw Water for Taps by Combining High Resolution Mass Spectrometry with Multivariate Analysis  

    Water and Environment Technology Conference 2020 (Online)  2020.11 

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    Event date: 2020.11

  • 田中敦, 藤田裕季, 高梨啓和, 中島常憲   ヒドロキシアパタイトによる石炭灰中の有害元素固定化  

    日本エネルギー学会第57回石炭科学会議  2020.10 

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    Event date: 2020.10

  • 山下優輝, 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   ガスクロマトグラフ‐高分解能質量分析計を用いた水道水中の生ぐさ臭原因物質の構造推定  

    環境科学会2020年会  2020.9 

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    Event date: 2020.9

  • Elucidation of Unknown Substances in Sewage with High Resolution Mass Spectrometry and Density Functional Theory  

    2020.9 

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    Event date: 2020.9

  • Identification of Unknown Substances in Sewage with High Resolution Mass Spectrometer  

    2020.9 

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    Event date: 2020.9

  • 山下一青, 島本英毅, 高梨啓和, 中島常憲   酸素フラスコ燃焼法を前処理とするコメ中のヒ素簡易分析法の開発  

    日本分析化学会第69年会  2020.9 

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    Event date: 2020.9

  • 園田拓哉、伊藤沙織、村上凪、高梨啓和、中島常憲   水和鉱物の生成による有害アニオンの固定化  

    日本分析化学会第69年会  日本分析化学会

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    Event date: 2020.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン  

  • 村上凪、田中敦、園田拓哉、高梨啓和、中島常憲   エージングにおける石炭灰中のフッ素固定化機構の解明  

    日本分析化学会第69年会  日本分析化学会

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    Event date: 2020.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン  

  • Yuta SHINFUKU, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Michihiro AKIBA   An Exploration of the Causative Substance of Fishy Smell in Raw Water for Taps by Combining High Resolution Mass Spectrometry and Multivariate Analysis  

    The 23rd Symposium of Japan Society on Water Environment Online  2020.9 

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    Event date: 2020.9

  • 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   LC-HRMS, GC-O, GC-HRMS, 多変量解析の組み合わせによる水道水生ぐさ臭原因物質の探索  

    第68回質量分析総合討論会  2020.5 

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    Event date: 2020.5

  • 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   多変量解析、LC-HRMS、GC-OおよびGC-HRMSによる水道水生ぐさ臭原因物質の探索  

    第54回日本水環境学会年会  2020.3 

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    Event date: 2020.3

  • 濵田隆太朗, 高梨啓和, 中島常憲, 新福優太, 井坂和一, 清水和哉   質量分析によるアナベナ属の種の判別法の開発  

    第54回日本水環境学会年会  2020.3 

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    Event date: 2020.3

  • 飯星瑛仁, 大葉佐世子, 高梨啓和, 中島常憲, 上田岳彦, 門川淳一, 石川英律, 宮本信一   農薬環境変化体4-ヒドロキシジノテフランの合成と河川水からの検出  

    第54回日本水環境学会年会  2020.3 

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    Event date: 2020.3

  • 田中敦, 藤田裕季, 村上凪, 中島常憲, 高梨啓和   模擬石炭灰中の有害元素固定化に対する灰組成の影響  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  2019.11 

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    Event date: 2019.11

  • 川口悠太, 中島常憲, 高梨啓和   酸素フラスコ燃焼とランタンアリザリンコンプレキソン法を組み合わせた石炭中のフッ素分析法の開発  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  2019.11 

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    Event date: 2019.11

  • 村上凪、園田拓哉、中島常憲、高梨啓和   エージングにおける石炭灰中のフッ素不溶化機構の解明  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  日本エネルギー学会西部支部

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    Event date: 2019.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:鹿児島  

  • 川口悠太、中島常憲、高梨啓和   酸素フラスコ燃焼とランタンアリザリンコンプレキソン法を組み合わせた石炭中のフッ素分析法の開発  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  日本エネルギー学会西部支部

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:鹿児島  

  • 田中敦、藤田裕季、村上凪、中島常憲、高梨啓和   模擬石炭灰中の有害元素固定化に対する灰組成の影響  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  日本エネルギー学会西部支部

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:鹿児島  

  • 佐野翔大、伊藤沙織、藤田裕季、中島常憲、高梨啓和   石炭灰のエージングにより生成するエトリンガイトの有害アニオン種固定化機構の検討  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  日本エネルギー学会西部支部

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    Event date: 2019.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:鹿児島  

  • 島本英毅、山下一青、中島常憲、高梨啓和   酸素フラスコ燃焼法を前処理とする石炭試料中のセレン分析  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  日本エネルギー学会西部支部

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    Event date: 2019.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:鹿児島  

  • TANAKA Atsushi, FUJITA Hiroki, MURAKAMI Nagi, NAKAJIMA Tsunenori, TAKANASHI Hirokazu   Effect of ash composition immobilization of hazardous elements in simulated coal ash sample  

    56th Conference on Coal Science  2019.10  The Japan Institute of Energy

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    Event date: 2019.10

    <p>Coal ash contains hazardous elements such as arsenic, boron, chromium, and selenium. These hazardous elements easily leach into the environment. In order to control their leaching, the aging of coal ash were developed, recently. In this study, the effect s of ash composition, such as calcium content in original coal ash, onto the immobilization ability of arsenic, boron, chromium, and selenium in the aged coal ash was investigated using simulated coal ash samples which have various calcium contents. When high calcium containing simulated coal ash samples were aged for a week, the leaching amount of arsenic, boron, and selenium from the simulated ash samples was effectively reduced and the formation of ettringite was observed on the surface of aged ash samples. From the results, the contribution of ettringite formation to the immobilization of hazardous elements was suggested.</p>

  • 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   多変量解析とLC-HRMSおよびGC-O-HRMSの組み合わせによる水道水中の生ぐさ臭原因物質の探索  

    環境科学会2019年会  2019.9 

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    Event date: 2019.9

  • 田中孝昌, 寺田修達, 福元翔大, 高梨啓和, 澤井 淳, 宮本信一, 亀屋隆志   流入下水中の生態毒性物質のターゲットスクリーニングとリスク評価  

    環境科学会2019年会  2019.9 

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    Event date: 2019.9

  • 桐原晃希, 大葉佐世子, 髙梨啓和, 中島常憲, 門川淳一, 上田岳彦, 石川英律, 宮本信一   ネオニコチノイド系農薬ジノテフランから生成する環境変化体のアセチルコリン受容体結合親和性評価  

    環境科学会2019年会  2019.9 

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    Event date: 2019.9

  • 中島常憲, 園田愛留音, 伊藤沙織, 高梨啓和, 大木章   桜島火山降灰中有害無機元素の分析前処理法検討とその溶出  

    日本分析化学会第68年会  日本分析化学会

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉  

  • 伊藤沙織, 岩坂瑠璃子, 藤田裕季, 中島常憲, 高梨啓和   エトリンガイトへのアニオン固定化機構の解明  

    日本分析化学会第68年会  日本分析化学会

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉  

  • 藤田裕季, 中島常憲, 伊藤沙織, 田中敦, 高梨啓和, 大木章   エージングを用いた石炭灰からの有害元素の溶出抑制  

    日本分析化学会第68年会  日本分析化学会

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉  

  • 川口悠太, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼とランタンアリザリンコンプレキソン法を組み合わせた石炭中のフッ素分析法の開発  

    日本分析化学会第68年会  日本分析化学会

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉  

  • 中島常憲,園田愛留音,高梨啓和,大木章   マイクロ波支援酸分解を前処理法とする桜島火山降灰中の無機元素分析におけるフッ化水素酸の影響  

    第27回環境化学討論会  日本環境化学会

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    Event date: 2019.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:埼玉  

  • 中島常憲、園田愛留音、高梨啓和、大木章   桜島火山降灰中の有害元素分析と環境影響   Invited

    第79回分析化学討論会  日本分析化学会

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    Event date: 2019.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:北九州  

  • FUJITA Hiroki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Immobilization of Hazardous Elements in Coal Ash by Aging Process  

    55th Conference on Coal Science  2018.10  The Japan Institute of Energy

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    Event date: 2018.10

    <p>Coal fly ash(CFA),which contains hazardous elements such as selenium and boron. These elements are easily leached out to water environment and contaminate the surface and groundwater. The leaching amount of these hazardous elements from CFAs exceeded the environmental standards of soil and landfill sometimes. In this study, effects of aging process on the leaching of hazardous elements from CFAs was examined. The leaching amount of selenium, boron, chromium and fluorine from CFAs decreased with the lapse of aging time. Selenium leaching from aged CFAs was influenced by the calcium content in original CFAs. The results of XRD analysis indicated selenium in aged CFAs was immobilized by hydrated minerals such as ettringite.</p>

  • Kawaguchi Yuta, Murakami Nagi, Nakajima Tsunenori, Takanashi Hirokazu, Ohki Akira   Elution of fluorine and development of analysis method using oxygen flask combustion in coal and coal ash  

    55th Conference on Coal Science  2018.10  The Japan Institute of Energy

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    Event date: 2018.10

    <p>As a result of elution test on coal ash, elution beyond the soil environmental standard value was confirmed. So, it is important to develop a simple analytical method for development of suppression technology. In this study, analysis of fluorine content in coal and coal ash was carried out by simple and quick method of analysis using oxygen flask combustion method (OFC) from the conventional method. We analyzed content by OFC and fluoride ion electrode (FISE) using several coal certified substances. As a result, it was found that the recovery rate tends to be low for samples with high fluorine content and high ash content. It was considered that the mineral that the melting point and decomposition temperature contained in coal is high and the effect of the reaction promoter (WO 3, Sn) can not be obtained lowers the recovery rate.</p>

  • 高梨啓和, 寺田修達, 田中孝昌, 福元翔大, 中島常憲, 亀屋隆志, 澤井淳, 宮本信一   網羅分析と全排水毒性試験による下水中の生態影響物質の探索  

    環境科学会2018年会  2018.9 

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    Event date: 2018.9

  • 島本英毅, 杉安雅貴, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼法とHGAASを用いる固体試料中のセレン分析  

    日本分析化学会第67年会  日本分析化学会

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:仙台  

  • 伊藤沙織, 園田愛留音, 中島常憲, 高梨啓和, 大木章   桜島火山降灰中の微量元素溶出と存在形態の関係  

    日本分析化学会第67年会  日本分析化学会

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:仙台  

  • 中島常憲, 川口悠太, 藤田裕季, 高梨啓和, 大木章   石炭および石炭灰に含まれるフッ素の水環境への溶出と簡易分析法の開発  

    日本分析化学会第67年会  日本分析化学会

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:仙台  

  • 園田愛留音,杉安雅貴,伊藤沙織,中島常憲,高梨啓和,大木章   桜島火山降灰に含まれる微量元素の分析と溶出  

    第27回環境化学討論会  日本環境化学会

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    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄  

  • 中島常憲, 武本真菜, 藤田裕季, 藤島寛樹, 高梨啓和, 大木章, 古園拓也   石炭灰からの有害元素溶出に対するエージングの影響  

    第54回石炭科学会議  日本エネルギー学会

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    Event date: 2017.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:秋田  

  • 杉安雅貴, 小濱郁也, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼法とCVAASを用いる食品試料中の水銀分析  

    日本分析化学会第66年会  日本分析化学会

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • 中島常憲、冨士龍正、高梨啓和、大木章   固体環境試料に含まれるフッ素の水環境への溶出と簡易分析  

    日本分析化学会第66年会  日本分析化学会

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • 園田愛留音、杉安雅貴、中島常憲、高梨啓和、大木章   桜島火山降灰の微量元素分析と溶出挙動  

    日本分析化学会第66年会  日本分析化学会

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • 藤島寛樹、古園拓也、中島常憲、高梨啓和、大木章   石炭灰中のセレンおよびホウ素の分析におけるマイクロ波支援酸分解法の最適化  

    日本分析化学会第66年会  日本分析化学会

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • 中島常憲,杉安雅貴,園田愛留音,冨士龍正,高梨啓和,大木 章   桜島火山降灰中に存在する無機元素の粒径別分析と水環境への溶出  

    第26回環境化学討論会  日本環境化学会

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    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:静岡  

  • 本村知寛、中島常憲、大木 章、高梨啓和   オオミジンコ及びヒメダカを用いる重金属の急性毒性試験と取り込み量分析  

    日本分析化学会 第65年会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市  

  • 藤島寛樹、中島常憲、高梨啓和、大木 章   マイクロ波支援酸分解を前処理とする石炭および石炭燃焼灰中のSeおよびB分析  

    日本分析化学会 第65年会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市  

  • 中島常憲、藤川聖菜、高梨啓和、大木 章   酸素フラスコ燃焼法を用いる固体環境試料中のフッ素簡易分析法の開発  

    日本分析化学会 第65年会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市  

  • 中島常憲, 高梨啓和, 大木章   石炭や石炭燃焼灰等の固体試料に含まれる有害微量元素の分析   Invited

    日本分析化学会第64年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 杉元貴哉, 本村知寛, 中島常憲, 大木章, 高梨啓和   淡水性生物を用いる重金属の生態影響試験における共存物質の影響  

    日本分析化学会第64年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 加藤政和, 中島常憲, 高梨啓和, 大木章   火山降灰中に含まれる有機及び無機微量成分の分析と溶出挙動  

    日本分析化学会第64年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 平川翔太, 中島常憲, 高梨啓和, 大木章   食品試料中の微量セレン分析による亜臨界水処理の回収法としての適用  

    日本分析化学会第64年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 本村知寛, 杉元貴哉, 中島常憲, 大木章, 高梨啓和   環境試料から溶出するフッ素分析と水生生物への生態影響評価  

    日本分析化学会第64年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 高梨啓和, 有島由紀子, 橋本扶美, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   ネオニコチノイド系農薬ジノテフランの環境変化体の探索   International conference

    環境科学会2015年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 高梨啓和, 浜知広, 中島常憲, 大木章, 上田岳彦, 亀屋隆志, 近藤貴志, 松下拓   多変量解析と高分解能質量分析による変異原の探索  

    環境科学会2015年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 橋本扶美, 有島由紀子, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   農薬環境変化体の環境モニタリング?親農薬と変化体のリスク比較?  

    環境科学会2015年会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 高梨啓和, 橋本扶美, 有島由紀子, 中島常憲, 大木章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   ネオニコチノイド系農薬imidacloprid光照射サンプル中の変化体の網羅的探索  

    日本水環境学会シンポジウム 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 橋本扶美, 有島由紀子, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   高分解能・高質量精度LC/MSを用いた環境サンプル中の未知物質の探索  

    廃棄物資源循環学会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 橋本扶美, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   ネオニコチノイド系農薬imidaclopridとその環境変化体(PTPWs)の河川水中濃度測定  

    日本水環境学会シンポジウム 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • T. Furuzono, H. Fujishima, T. Nakajima, H. Takanashi, A. Ohki   Behavior of trace elements in coal combution plant   International conference

    The 13th China-Japan Symposium on Coal and C1 Chemistry 

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    Event date: 2015.9

    Language:English   Presentation type:Oral presentation (general)  

  • 中島常憲,加藤政和,桑水流明日香,谷口遥菜, 高梨啓和,大木章   桜島火山降灰に含まれる多環芳香族炭化水素の分析と無機元素溶出挙動  

    第24回環境化学討論会 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

  • 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 近藤貴志*, 亀屋隆志*, 松下 拓*   高分解能LC-MSを用いた土壌燻蒸剤D-D塩素処理物中の未知変異原の探索  

    第63回質量分析総合討論会 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

  • 高梨啓和, 福崎悠史郎, 藤木健司, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   標準物質の入手が困難な環境汚染物質のLC/MS/MS測定  

    第49回日本水環境学会年会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 橋本扶美, 有島由紀子, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   未知環境変化体(PTPWs)の構造推定と半定量分析:ネオニコチノイド系農薬imidaclopridを例として  

    第49回日本水環境学会年会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 藤木健司, 福崎悠史郎, 榎園直樹, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   ネオニコチノイド系農薬とその環境変化体(PTPWs)の同時定量分析  

    第49回日本水環境学会年会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 有島由紀子, 橋本芙美, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   未知環境変化体(PTPWs)の構造推定方法の検討:ネオニコチノイド系農薬を例として  

    第49回日本水環境学会年会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 浜知広, 一宮利恵, 高梨啓和, 中島常憲, 大木章, 上田岳彦   多変量解析による3‐methyl‐4‐nitrophenol塩素処理物中の変異原の探索  

    第49回日本水環境学会年会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 平 美冴,大村真紀子,原口幸征,中島常憲,高梨啓和,大木 章   石炭および石炭灰中の微量元素分析における酸分解の最適条件検討  

    第51回石炭科学会議  第51回石炭科学会議

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    Event date: 2014.10

    Language:Japanese  

    Venue:宮城  

    国内学会

  • 中島常憲,平美冴,南有紀,高梨啓和,大木章   マイクロ波支援酸分解を前処理とするICP-MS法による石炭中の水銀等微量元素分析  

    第51回石炭科学会議  第51回石炭科学会議

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    Event date: 2014.10

    Language:Japanese  

    Venue:宮城  

    国内学会

  • Tsunenori Nakajima, Kosei Haraguchi, Misa Taira, Hirokazu Takanashi, Akira Ohki   Effect of Pretreatment Conditions on the Determination of Trace Elements in Coal by Use of Atomic Spectroscopy,   International conference

    2014 International Pittsburgh Coal Conference  2014 International Pittsburgh Coal Conference

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    Event date: 2014.10

    Language:English  

    Venue:ピッツバーグ,米国  

    国際学会

  • Akira Ohki, Misa Taira, Shota Hirakawa, Tsunenori Nakajima, Hirokazu Takanashi   Mercury Contents in Various Low-Sulfur Bituminous Coals from Different Countries: Relationship to Coal Properties   International conference

    2014 International Pittsburgh Coal Conference  2014 International Pittsburgh Coal Conference

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    Event date: 2014.10

    Language:English  

    Venue:ピッツバーグ,米国  

    国際学会

  • 平川翔太,林 健太郎,中島常憲,高梨啓和,大木 章   亜臨界水処理を溶液化法として用いる食品試料中に含まれる微量元素分析  

    日本分析化学会第63年会  日本分析化学会第63年会

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    Event date: 2014.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 加藤政和,林 健太郎,谷口 遥菜,中島常憲,高梨啓和 ・ 大木 章   火山降灰中に含まれる多環芳香族炭化水素の分析  

    日本分析化学会第63年会  日本分析化学会第63年会

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    Event date: 2014.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 杉元貴哉,西村 彩,本村知寛,中島常憲,高梨啓和,大木 章   オオミジンコを用いる生体影響試験における共存化学種の影響  

    日本分析化学会第63年会  日本分析化学会第63年会

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    Event date: 2014.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 中島常憲,平 美冴,原口幸征,高梨啓和,大木 章   固体環境試料中の微量元素分析におけるマイクロ波酸分解条件の検討  

    日本分析化学会第63年会  日本分析化学会第63年会

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    Event date: 2014.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 横小路泰樹,中島常憲,高梨啓和,大木 章   重金属の水素化物発生原子吸光分析における共存有機物の影響  

    日本分析化学会第63年会  日本分析化学会第63年会

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    Event date: 2014.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 谷口遥菜, 林 健太郎, 加藤政和, 中島常憲, 高梨啓和, 大木 章   鹿児島市における桜島火山降灰の調査と成分分析  

    第23回環境化学討論会  第23回環境化学討論会

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    Event date: 2014.5

    Language:Japanese  

    Venue:京都  

    国内学会

  • 中島常憲, 西村 彩, 杉元貴哉, 高梨啓和, 大木 章   重金属の生態毒性試験における硬度および配位性化合物の影響  

    第23回環境化学討論会  第23回環境化学討論会

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    Event date: 2014.5

    Language:Japanese  

    Venue:京都  

    国内学会

  • Tsunenori Nakajima, MisaTaira, Kosei Haraguchi, Hirokazu Takanashi, AkiraOhki   Determination of Mercury and Other Trace Elements in Coal by Use of Atomic Spectrometries   International conference

    International Symposium on EcoTopia Science 2013  International Symposium on EcoTopia Science 2013

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    Event date: 2013.12

    Language:English  

    Venue:名古屋  

    国際学会

  • Akira Ohki, Kousei Haraguchi, Misa Taira, Tsunenori Nakajima, Hirokazu Takanashi   Influence of Particle Size of Coal on the Determination of Mercury and Other Trace Elements in Coal   International conference

    2013 International Conference on Coal Science & Technology  2013 International Conference on Coal Science & Technology

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    Event date: 2013.10

    Language:English  

    Venue:ペンシルバニア、米国  

    国際学会

  • T. Nakajima, R. Kamito, K. Yamada, H. Takanashi, A. Ohki   Removal of Hazardous Trace Elements in Wet Flue Gas Desulfurization Water from Coal Fired Plants   International conference

    2013 International Conference on Coal Science & Technology  2013 International Conference on Coal Science & Technology

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    Event date: 2013.10

    Language:English  

    Venue:ペンシルバニア、米国  

    国際学会

  • 平 美冴、平川翔太、原口幸征、中島常憲、高梨啓和、大木 章   石炭中に含まれる水銀等微量元素の存在形態解析  

    第50回石炭科学会議  第50回石炭科学会議

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    Event date: 2013.10

    Language:Japanese  

    Venue:福岡  

    国内学会

  • Tsunenori Nakajima , Ryo Kamito, Kenta Yamada, Hirokazu Takanashi, Akira Ohki   Removal of Selenium and Other Hazardous Trace Elements in Wet Flue Gas Desulfurization Water from Coal Fired Plants   International conference

    12th Japan-China Symposium on Coal and C1 Chemistry  12th Japan-China Symposium on Coal and C1 Chemistry

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    Event date: 2013.10

    Language:English  

    Venue:福岡  

    国際学会

  • 宮内悠馬, 高梨啓和, 中島常憲, 大木章, 下ケ橋雅樹, 岸田直裕, 秋葉道宏   生物生涯の発生に伴う浄水処理プロセスのエネルギー消費量の変化の解析  

    環境科学会年会プログラム  2013.9 

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    Event date: 2013.9

  • 高梨啓和, 有島由紀子, 濱美紗希, 中島常憲, 大木章, 近藤貴志, 亀屋隆志, 松下拓   LC/MSを用いた農薬変化体の探索  

    環境科学会年会プログラム  2013.9 

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    Event date: 2013.9

  • 高梨啓和, 中島常憲, 大木章, 近藤貴志, 亀屋隆志, 松下拓   LC‐MSを用いたunknown screeningによる土壌燻蒸剤D‐D塩素処理物中の変異原の探索  

    環境科学会年会プログラム  2013.9 

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    Event date: 2013.9

  • 横小路泰樹、中島常憲、高梨啓和、大木 章   水素化物発生原子吸光法を用いるセレン分析における有機物の影響  

    日本分析化学会第62年会  日本分析化学会第62年会

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    Event date: 2013.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • 林 健太郎、坂元 義史、中島 常憲、高梨 啓和、大木 章   亜臨界水処理を利用する食品試料中に含まれるセレンとヒ素の分析  

    日本分析化学会第62年会  日本分析化学会第62年会

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    Event date: 2013.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • 中島 常憲、原口 幸征、平 美冴、高梨 啓和、大木 章   加熱気化原子吸光法を用いる固体環境試料中の水銀分析  

    日本分析化学会第62年会  日本分析化学会第62年会

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    Event date: 2013.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • NAKAJIMA Tsunenori, HARAGUCHI Kosei, MINAMI Yuki, TAKANASHI Hirokazu, OHKI Akira   Analysis of Mercury and Other Hazardous Trace Elements in Coal  

    2013.8  The Japan Institute of Energy

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    Event date: 2013.8

    The concentration of Hg in various kinds of coals, which are varied in production countries, was analyzed by a heat vaporization atomic absorption spectrometry (HVAAS), and the effect of particle size of coal onto the measurable deviation in data was discussed. When the determination of Hg was performed for the SS coal samples in a 60 mesh under powdery samples, some of the coals showed the higher relative standard deviation (RSD) values. When a further small particle size was used, the RSD value in data became small. For the determination of other trace metals, the coal samples with a particle size (ca. 100 mesh pass) did not show such a deviation in data. Also, the relationship between the Hg content in coal and some coal properties was investigated.

  • 中島常憲, 原口幸征, 南 有紀, 高梨啓和, 大木 章   石炭中の水銀等有害微量元素の分析   International conference

    第22回日本エネルギー学会大会  第22回日本エネルギー学会大会

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    Event date: 2013.8

    Language:English  

    Venue:東京  

    国際学会

  • 中島常憲, 林 健太郎, 坂元義史, 高梨啓和, 大木 章   食品の亜臨界水処理における水銀やセレン化合物の運命  

    第22回環境化学討論会  第22回環境化学討論会

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    Event date: 2013.7

    Language:Japanese  

    Venue:東京  

    国内学会

  • 西村 彩, 南 有紀, 中島 常憲, 高梨 啓和, 大木 章   水銀およびセレン化合物の淡水産生物に対する毒性  

    第22回環境化学討論会  第22回環境化学討論会

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    Event date: 2013.7

    Language:Japanese  

    Venue:東京  

    国内学会

  • T. Nakajima, Y. Minami, A. Nishimura, H. Takanashi, A. Ohki   Effect of the presence of chelators on the uptake and toxicity of mercury and other metals to Daphnia magna   International conference

    Water and Environment Technology Conference 2013 (WET2013)  Water and Environment Technology Conference 2013 (WET2013)

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    Event date: 2013.6

    Language:English  

    Venue:東京  

    国際学会

  • 田中華子, 阿比留和也, 高梨啓和, 中島常憲, 大木章, 近藤貴志, 亀屋隆志, 松下拓   精密質量分析による3‐メチル‐4‐ニトロフェノール塩素処理物中の変異原性物質の探索  

    2013.3 

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    Event date: 2013.3

  • 高梨啓和, 迫田健志, 浜知広, 中島常憲, 大木章, 松下拓, 近藤貴志, 亀屋隆志   農薬分解物の変異原性物質生成能  

    2013.3 

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    Event date: 2013.3

  • 阿比留和也, 田中華子, 高梨啓和, 中島常憲, 大木章, 近藤貴志, 亀屋隆志, 松下拓   精密質量分析に基づく1,3‐ジクロロプロペン塩素処理副生成物の探索  

    第47回日本水環境学会年会  2013.3 

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    Event date: 2013.3

  • 濱美紗希, 西山舞, 阿比留和也, 高梨啓和, 中島常憲, 大木章, 近藤貴志, 亀屋隆志, 松下拓   精密質量分析によるフェニトロチオン光分解物質の探索  

    2013.3 

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    Event date: 2013.3

  • 高梨啓和、迫田健志、浜知広、中島常憲、大木章、松下拓、近藤貴志、亀屋隆志   農薬分解物の変異原性物質生成  

    第47回日本水環境学会年会  第47回日本水環境学会年会

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    Event date: 2013.3

    Language:Japanese  

    Venue:大阪  

    国内学会

  • 西村彩, 南有紀, 中島常憲, 高梨啓和, 大木章   配位性化合物が水銀のオオミジンコに対する生態毒性にあたえる影響  

    平成24年度日本水環境学会九州支部研究発表会  平成24年度日本水環境学会九州支部研究発表会

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    Event date: 2013.2

    Language:Japanese  

    Venue:北九州市  

    国内学会

  • 高梨啓和、濱美紗希、西山舞、阿比留和也、中島常憲、大木章、上田岳彦   精密質量分析と天然同位体パターン分析によるフェニトロチオン光分解物質の探索  

    平成24年度日本水環境学会九州支部研究発表会  平成24年度日本水環境学会九州支部研究発表会

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    Event date: 2013.2

    Language:Japanese  

    Venue:北九州市  

    国内学会

  • 中島常憲, 原口幸征, 南 有紀, 高梨啓和, 大木 章   原子スペクトル法による石炭中の微量元素分析  

    第48回日本エネルギー学会石炭科学会議  第48回日本エネルギー学会石炭科学会議

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    Event date: 2012.10

    Language:Japanese  

    Venue:釧路  

    国内学会

  • 上戸 龍, 黒木秀徳, 中島常憲, 高梨啓和, 大木 章   石炭燃焼プロセスにて排出される排水中のセレン除去  

    第48回日本エネルギー学会石炭科学会議  第48回日本エネルギー学会石炭科学会議

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    Event date: 2012.10

    Language:Japanese  

    Venue:釧路  

    国内学会

  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA and Taku MATSUSHITA   Production of chlorophenols through chlorination of 3-methyl-4-nitrophenol, a typical hydrolysate of fenitrothion   International conference

    SETAC Asia/Pacific 2012 Annual Meeting  SETAC Asia/Pacific 2012 Annual Meeting

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    Event date: 2012.9

    Language:English  

    Venue:Kumamoto  

    国際学会

  • 中島常憲, 上戸龍, 高梨啓和, 大木 章   生物処理法や光触媒法を用いた水相からのセレン酸の除去  

    環境科学会2012年会  環境科学会2012年会

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    Event date: 2012.9

    Language:Japanese  

    Venue:横浜  

    国内学会

  • 南 有紀, 西村 彩, 中島 常憲, 高梨 啓和, 大木 章   フローインジェクション-ICPMS法による環境試料中の微量元素の分析  

    第61回日本分析化学会年会  第61回日本分析化学会年会

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    Event date: 2012.9

    Language:Japanese  

    Venue:金沢  

    国内学会

  • 原口幸征, 平 美冴, 中島常憲, 高梨啓和, 大木 章   石炭や石炭灰等に含まれる微量元素の分析  

    第61回日本分析化学会年会  第61回日本分析化学会年会

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    Event date: 2012.9

    Language:Japanese  

    Venue:金沢  

    国内学会

  • Hirokazu Takanashi, Kazuya Abiru, Misako Kishida, Tsunenori Nakajima, Akira Ohki, Taku Matsushita and Takashi Kameya   Qualitative analysis of chlorination byproducts of organophosphorus pesticide fenitrothion   International conference

    The IWA World Water Congress & Exhibition, Busan  The IWA World Water Congress & Exhibition, Busan

     More details

    Event date: 2012.9

    Language:English  

    Venue:Busan, Korea  

    国際学会

  • 高梨啓和、中島常憲、大木 章、甲斐敬美、丸山守人、伊庭 誠   第1世代バイオディーゼル燃料精製プロセスの省エネ化  

    第21回日本エネルギー学会大会  第21回日本エネルギー学会大会

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    Event date: 2012.8

    Language:Japanese  

    Venue:東京  

    国内学会

  • 中島常憲, 原口幸征, 南有紀, 金近文彬, 高梨啓和, 大木 章   石炭中の微量有害元素分析法の開発  

    第21回日本エネルギー学会大会  第21回日本エネルギー学会大会

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    Event date: 2012.8

    Language:Japanese  

    Venue:東京  

    国内学会

  • Tsunenori NAKAJIMA   Determination of Trace Elements in Coal by Use of Atomic Spectrometry  

    The 10th Yokohama Trace Element Workshop  The 10th Yokohama Trace Element Workshop

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    Event date: 2012.7

    Language:Japanese  

    Venue:Huangshan, China  

    研究会

  • 西村 彩, 南 有紀, 中島常憲, 高梨啓和, 大木 章   重金属の淡水産生物に対する毒性と配位性化合物による毒性緩和  

    第21回環境化学討論会  第21回環境化学討論会

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    Event date: 2012.7

    Language:Japanese  

    Venue:松山  

    国内学会

  • 林健太郎, 大迫譲滋, 中島常憲, 高梨啓和, 大木 章   魚肉中に含まれる水銀とセレンの再資源化処理による化学形態変化  

    第21回環境化学討論会  第21回環境化学討論会

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    Event date: 2012.7

    Language:Japanese  

    Venue:松山  

    国内学会

  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO and Takashi KAMEYA and Taku MATSUSHITA   Production of chloro-5-hydroxy-2-nitrobenzoic acid through chlorination of 3-methyl-4-nitrophenol, a typical hydrolysate of fenitrothion   International conference

    Water and Environment Technology Conference 2012  Water and Environment Technology Conference 2012

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    Event date: 2012.6

    Language:English  

    Venue:Tokyo  

    国際学会

  • Tsunenori NAKAJIMA, Kenta YAMADA, Hiroki IDEHARA, Hirokazu TAKANASHI, Akira OHKI   Removal of Selenium from Wastewater by Photocatalytic and Biological Reduction   International conference

    Water and Environment Technology Conference 2012 (WET2012)  Water and Environment Technology Conference 2012 (WET2012)

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    Event date: 2012.6

    Language:English  

    Venue:東京  

    国際学会

  • 林健太郎, 大迫譲滋, 中島常憲, 高梨啓和, 大木 章   魚類試料中に含まれる水銀とセレンの分析と水熱処理による化学形態変化  

    第72回分析化学討論会  第72回分析化学討論会

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    Event date: 2012.5

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • 原口幸征, 金近文彰, 中島常憲, 高梨啓和, 大木 章   石炭試料中に含まれる水銀など微量元素の分析  

    第72回分析化学討論会  第72回分析化学討論会

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    Event date: 2012.5

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA and Taku MATSUSHITA   Accurate Mass Analysis of Chlorination By-Products of Fenitrothion   International conference

    the 10th China-Japan Symposium on Water Environment  the 10th China-Japan Symposium on Water Environment

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    Event date: 2012.4

    Language:English  

    Venue:Shenzhen, China  

    国際学会

  • 中島常憲、上戸龍、山田健太、高梨啓和、大木 章   湿式排煙脱硫液に含まれる有害元素除去法の開発  

    平成23年度日本水環境学会九州支部研究発表会  平成23年度日本水環境学会九州支部研究発表会

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    Event date: 2012.3

    Language:Japanese  

    Venue:北九州  

    国内学会

  • 久保亮二、高梨啓和、中島常憲、大木章、甲斐敬美、阿部和麻、伊庭誠、丸山守人   高電圧印加場を利用したバイオディーゼル燃料の精製  

    化学工学会第77年会  化学工学会第77年会

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    Event date: 2012.3

    Language:Japanese  

    Venue:東京  

    国内学会

  • 阿比留和也、田中華子、高梨啓和、中島常憲、大木章、松下拓、近藤貴志、亀屋隆志   精密質量分析による農薬塩素処理物中の変異原性物質の探索  

    第46回日本水環境学会年会  第46回日本水環境学会年会

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    Event date: 2012.3

    Language:Japanese  

    Venue:東京  

    国内学会

  • 加藤雄介、浜崎賢太、高梨啓和、中島常憲、大木章、松下拓、近藤貴志、亀屋隆志   農薬分解物の変異原性物質生成能の調査  

    第46回日本水環境学会年会  第46回日本水環境学会年会

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    Event date: 2012.3

    Language:Japanese  

    Venue:東京  

    国内学会

  • 田中華子、阿比留和也、高梨啓和、中島常憲、大木章、松下拓、近藤貴志、亀屋隆志   農薬分解物塩素処理サンプル中の変異原性物質の探索  

    平成23年度日本水環境学会九州支部研究発表会  平成23年度日本水環境学会九州支部研究発表会

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    Event date: 2012.3

    Language:Japanese  

    Venue:北九州  

    国内学会

  • 高梨啓和、加藤雄介、浜崎賢太、中島常憲、大木章、松下拓、近藤貴志、亀屋隆志   農薬分解物の変異原性および変異原性物質生成能の調査  

    平成23年度日本水環境学会九州支部研究発表会  平成23年度日本水環境学会九州支部研究発表会

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    Event date: 2012.3

    Language:Japanese  

    Venue:北九州  

    国内学会

  • 西村彩、南有紀、中島常憲、高梨啓和、大木章   キレート剤共存下における淡水産生物に対する重金属毒性と生物取込  

    平成23年度日本水環境学会九州支部研究発表会  平成23年度日本水環境学会九州支部研究発表会

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    Event date: 2012.3

    Language:Japanese  

    Venue:北九州  

    国内学会

  • Tsunenori Nakajima, Harue Kawai, Yuki Murata, Asumi Matsuo, Hirokazu Takanashi, Akira Ohki   Effect of Chelator on the Acute Toxicity of Some Heavy Metals to Freshwater Organisms   International conference

    Proceedings of the 4th IWA-Asia Pacific Regional Conference and Exhibition  Proceedings of the 4th IWA-Asia Pacific Regional Conference and Exhibition

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    Event date: 2011.10

    Language:English  

    Venue:Tokyo, Japan  

    国際学会

  • Hirokazu TAKANASHI, Kazuya ABIRU, Misako KISHIDA, Tsunenori NAKAJIMA and Akira OHKI   Accurate Mass Analyses of Chlorination By-Products of Organophosphorus Pesticide Fenitrothion   International conference

    Proceedings of the 4th IWA-Asia Pacific Regional Conference and Exhibition  Proceedings of the 4th IWA-Asia Pacific Regional Conference and Exhibition

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    Event date: 2011.10

    Language:English  

    Venue:Tokyo, Japan  

    国際学会

  • Akira Ohki, Tsunenori Nakajima, Hirokazu Takanashi   Analysis of trace hazardous elements in flue gas desulfurization water and the removal of these elements from the water   International conference

    2011 International Pittsburgh Coal Conference(CD-ROM)  2011 International Pittsburgh Coal Conference(CD-ROM)

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    Event date: 2011.10

    Language:English  

    Venue:Pittsburgh, USA  

    国際学会

  • 中島常憲、山田健太、上戸 龍、高梨啓和、大木 章   光触媒を用いた環境浄化システムのセレン酸含有廃水処理への応用  

    環境科学会2011年会プログラム, p. 65  環境科学会2011年会プログラム, p. 65

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    Event date: 2011.9

    Language:Japanese  

    Venue:兵庫, 西宮  

    国内学会

  • 高梨啓和、中島常憲、大木 章、甲斐敬美、丸山 守人、伊庭 誠、阿部和麻   バイオディーゼル燃料精製プロセスの省エネルギー化  

    環境科学会2011年会  環境科学会2011年会

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    Event date: 2011.9

    Language:Japanese  

    Venue:兵庫県  

    国内学会

  • 原口幸征, 古園拓也, 中島常憲, 高梨啓和, 大木 章   マイクロ波照射-酸分解とICP-MSを用いる固体環境試料中の微量元素分析  

    第60回日本分析化学会年会講演要旨集, p. 197  第60回日本分析化学会年会講演要旨集, p. 197

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    Event date: 2011.9

    Language:Japanese  

    Venue:名古屋  

    国内学会

  • 大迫譲滋, 古園拓也, 中島常憲, 高梨啓和, 大木 章   HPLC法と抽出法を用いる魚類中の水銀およびセレンのスペシエーション  

    第60回日本分析化学会年会講演要旨集, p. 197  第60回日本分析化学会年会講演要旨集, p. 197

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    Event date: 2011.9

    Language:Japanese  

    Venue:名古屋  

    国内学会

  • 南 有紀, 河井晴恵, 中島常憲, 高梨啓和, 大木 章   淡水産生物を用いる生態影響試験における重金属生体内取込量の分析  

    第60回日本分析化学会年会講演要旨集, p. 109  第60回日本分析化学会年会講演要旨集, p. 109

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    Event date: 2011.9

    Language:Japanese  

    Venue:名古屋  

    国内学会

  • Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takami KAI, Morito MARUYAMA, Makoto IBA and Kazuma ABE   A WATER MINIMIZATION TECHNOLOGY FOR PURIFYING CRUDE BIODIESEL FUEL USING ELECTRIC FIELD   International conference

    7th International Conference on BIOMASS FOR ENERGY  7th International Conference on BIOMASS FOR ENERGY

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    Event date: 2011.9

    Language:English  

    Venue:Kyiv, Ukraine  

    国際学会

  • 高梨啓和、久保亮二、中島常憲、大木 章、甲斐敬美、阿部和麻、伊庭 誠、丸山 守人   電場を利用した粗製バイオディーゼル燃料の精製  

    化学工学会第43回秋季大会  化学工学会第43回秋季大会

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    Event date: 2011.9

    Language:Japanese  

    Venue:名古屋市  

    国内学会

  • Tsunenori Nakajima, Yoshiaki Ueyama, Hiroki Idehara, Hirokazu Takanashi, Akira Ohki   Removal of inorganic sulfur and trace elements from coal during biodesulfurization   International conference

    Proceedings of the 11th Japan-China Symposium on Coal and C1 Chemistry  Proceedings of the 11th Japan-China Symposium on Coal and C1 Chemistry

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    Event date: 2011.8

    Language:English  

    Venue:Yinchuan, Ningxia, China  

    国際学会

  • 中島常憲, 上谷川昇, 高梨啓和, 大木章   石炭燃焼灰に含まれる微量元素の溶出とその抑制  

    第20回日本エネルギー学会大会講演要旨集, pp. 4-5  第20回日本エネルギー学会大会講演要旨集, pp. 4-5

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    Event date: 2011.8

    Language:Japanese  

    Venue:大阪, 吹田  

    国内学会

  • 高梨啓和, 久保亮二, 中島常憲, 大木章, 甲斐敬美, 丸山守人*, 伊庭誠*, 舟川知也*   直交流電場を用いた粗製バイオディーゼル燃料の精製  

    第20回日本エネルギー学会大会講演要旨集, pp. 70-71  第20回日本エネルギー学会大会講演要旨集, pp. 70-71

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    Event date: 2011.8

    Language:Japanese  

    Venue:大阪, 吹田  

    国内学会

  • 中島常憲, 原口幸征, 高梨啓和, 大木章   桜島降灰中に含まれる水銀等微量元素の分析  

    第20回環境化学討論会講演要旨集(CD-ROM)  第20回環境化学討論会講演要旨集(CD-ROM)

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    Event date: 2011.7

    Language:Japanese  

    Venue:熊本  

    国内学会

  • 大迫譲滋, 原口幸征, 中島常憲, 高梨啓和, 大木 章   魚肉中に含まれる水銀およびセレンの存在形態解明と発酵過程における運命追跡  

    第20回環境化学討論会講演要旨集(CD-ROM)  第20回環境化学討論会講演要旨集(CD-ROM)

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    Event date: 2011.7

    Language:Japanese  

    Venue:熊本  

    国内学会

  • Hirokazu TAKANASHI, Ryoji KUBO, Tsunenori NAKAJIMA, Akira OHKI, Takami KAI, Tomoya FUNAKAWA, Makoto IBA and Morito MARUYAMA   Purification of Crude Biodiesel Fuel by Electrical Fields - Part I A new separator using simplified concept of multi extraction stages   International conference

    Proc. 19th European Biomass Conference and Exhibition  Proc. 19th European Biomass Conference and Exhibition

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    Event date: 2011.6

    Language:English  

    Venue:Berlin, Germany  

    国際学会

  • 中島常憲, 上谷川昇, 高梨啓和, 大木 章   石炭灰からの有害元素溶出に対する洗浄の効果  

    H22年度日本水環境学会九州支部研究発表会講演要旨集,p. 13  H22年度日本水環境学会九州支部研究発表会講演要旨集,p. 13

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 中島常憲, 上谷川昇, 高梨啓和, 大木章   洗浄剤による石炭灰からの有害元素溶出抑制  

    第45回日本水環境学会年会講演集, p. 105  第45回日本水環境学会年会講演集, p. 105

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    Event date: 2011.3

    Language:Japanese  

    Venue:北海道, 札幌  

    国内学会

  • 中島常憲、上谷川昇、高梨啓和、大木章   石炭灰からの有害元素溶出に対する洗浄の効果  

    平成22年度日本水環境学会九州支部研究発表会  平成22年度日本水環境学会九州支部研究発表会

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 久保亮二、高梨啓和、中島常憲、大木 章、甲斐敬美、舟川知也、伊庭 誠、丸山守人   電場を利用した粗製バイオディーゼル燃料の精製  

    化学工学会第76年会  化学工学会第76年会

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    Event date: 2011.3

    Language:Japanese  

    Venue:府中市、東京  

    国内学会

  • 高梨啓和、久保亮二、清水 南、中島常憲、大木 章、甲斐敬美、舟川知也、伊庭 誠、丸山守人   バイオディーゼル燃料精製時の水使用量削減技術の開発  

    第45回日本水環境学会年会  第45回日本水環境学会年会

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    Event date: 2011.3

    Language:Japanese  

    Venue:札幌市、北海道  

    国内学会

  • 隈部丈雄、岸田美紗子、高梨啓和、中島常憲、大木 章   質量分析計を用いた農薬塩素処理副生成物の探索  

    第45回日本水環境学会年会  第45回日本水環境学会年会

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    Event date: 2011.3

    Language:Japanese  

    Venue:札幌市、北海道  

    国内学会

  • 南有紀、河井晴恵、中島常憲、高梨啓和、大木章   重金属の生態毒性に対する錯形成反応の影響  

    平成22年度日本水環境学会九州支部研究発表会  平成22年度日本水環境学会九州支部研究発表会

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 阿比留和也、岸田美紗子、高梨啓和、中島常憲、大木章   殺虫剤フェニトロチオン塩素処理物からの変異原性物質の探索  

    平成22年度日本水環境学会九州支部研究発表会  平成22年度日本水環境学会九州支部研究発表会

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 雲田美紀、高梨啓和、中島常憲、大木章   製油所から発生するスイートニングプロセス廃水の処理  

    平成22年度日本水環境学会九州支部研究発表会  平成22年度日本水環境学会九州支部研究発表会

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 高梨啓和、隈部丈雄、岸田美紗子、中島常憲、大木章   質量分析計による農薬塩素処理副生成物の探索  

    平成22年度日本水環境学会九州支部研究発表会  平成22年度日本水環境学会九州支部研究発表会

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    Event date: 2011.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • Tsunenori Nakajima, Takushi Nagai, Joji Osako, Hirokazu Takanashi, Akira Ohki   Analysis of mercury in coal, biomass, and waste material samples   International conference

    Proc. of The Second International Symposium on Gasification and Its Application No. 16-B11 (CD-ROM)  Proc. of The Second International Symposium on Gasification and Its Application No. 16-B11 (CD-ROM)

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    Event date: 2010.12

    Language:English  

    Venue:Fukuoka, Japan  

    国際学会

  • NAKAJIMA Tsunenori, IDEHARA Hiroki, YAMADA Kenta, TAKANASHI Hirokazu, OHKI Akira   Removal of selenate from wet flue gas desulfurization wastewater  

    2010.9  The Japan Institute of Energy

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    Event date: 2010.9

    Se(VI)was hard to remove from the aqueous media by using the conventional removal method, such as adsorption. Therefore, the removal of Se(VI) from the simulated wet FGD waters by use of bioreduction and TiO_2 photocatalytic reduction were investigated. When the bioreduction and photocatalytic reduction systems were attempted for a simple Se(VI) solution, the reduction of Se(VI) to Se(0) precipitate actually occurs and Se(VI) was effectively removed from aqueous media. However, the removal efficiency of Se(VI) was considerably inhibited by some co-existing anions, such as NO_3^- or SO_4^<2-> when these reduction methods were applied for the simulated FGD waters.

  • YAMADA Kenta, FURUZONO Takuya, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Analysis of wet flue gas desulfurization wastewater in coal combustion system and removal of trace hazardous elements  

    2010.9  The Japan Institute of Energy

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    Event date: 2010.9

    The wet flue gas desulfurization(FGD)waters obtained from a coal combustion system was analyzed especially focusing on the presence of trace hazardous elements. For B and Se, appreciable concentrations are observed in the FGD waters when the coals with higher concentrations of these elements are used. Also, the removal of B, Se, and Hg from a simulated FGD water was attempted. A glucamine-type resin or fiber showed a high adsorption ability for B and Hg.

  • UEYAMA Yoshiaki, IDEHARA Hiroki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Biodesulfurization of coal and coking property of biodesulfurized coal  

    2010.9  The Japan Institute of Energy

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    Event date: 2010.9

    Biodesulfurization of coals by use of Thiobacillus ferrooxidans was examined, and the coking property of the biodesulfurized coal was investigated in terms of button index. The % removal of inorganic sulfur was 40-90% when the biodesulfurization was carried out for three high sulfur coals. Also, the biodesulfurization favorably worked for the removal of As and Se from coal. Moreover, a good correlation was observed between the removal of As from coal and that for inorganic sulfur. For the coking property of the biodesulfurized coal, the button index was not varied. The results suggest that the biodesulfurization is a useful process not only for steam coals but also for coking coals.

  • 古園 拓也, 大迫 譲滋, 中島 常憲, 高梨 啓和, 大木 章   アニオン交換クロマトグラフィーを用いるヒ素およびセレンのスペシエーション  

    日本分析化学会第59年会  2010.9  (公社)日本分析化学会

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    Event date: 2010.9

  • 大迫 譲滋, 永井 拓志, 中島 常憲, 高梨 啓和, 大木 章   HPLC法および抽出法を用いる生物試料中の水銀スペシエーション  

    日本分析化学会第59年会  2010.9  (公社)日本分析化学会

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    Event date: 2010.9

  • 中島常憲, 井手原広季, 山田健太, 高梨啓和, 大木章   湿式排煙脱硫廃水に含まれる難除去性セレン除去法の開発  

    第47回日本エネルギー学会石炭科学会議発表論文集, pp. 40-41  第47回日本エネルギー学会石炭科学会議発表論文集, pp. 40-41

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    Event date: 2010.9

    Language:Japanese  

    Venue:岐阜  

    国内学会

  • 山田健太, 古園拓也, 中島常憲, 高梨啓和, 大木章   石炭燃焼システムにおける湿式排煙脱硫廃水の分析と有害微量元素除去  

    第47回日本エネルギー学会石炭科学会議発表論文集, pp. 38-39  第47回日本エネルギー学会石炭科学会議発表論文集, pp. 38-39

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    Event date: 2010.9

    Language:Japanese  

    Venue:岐阜  

    国内学会

  • 上山由貴, 井手原広季, 中島常憲, 高梨啓和, 大木章   石炭の微生物脱硫における微量元素除去と粘結性変化  

    第47回日本エネルギー学会石炭科学会議発表論文集, pp. 46-47  第47回日本エネルギー学会石炭科学会議発表論文集, pp. 46-47

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    Event date: 2010.9

    Language:Japanese  

    Venue:岐阜  

    国内学会

  • 大林慶一、久保亮二、高梨啓和、中島常憲、大木 章、甲斐敬美、舟川知也、伊庭 誠、丸山守人   バイオディーゼル燃料製造時に発生する廃水量の削減  

    化学工学会第42回秋季大会  化学工学会第42回秋季大会

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    Event date: 2010.9

    Language:Japanese  

    Venue:京都  

    国内学会

  • 高梨啓和、中島常憲、大木 章、甲斐敬美、舟川知也、伊庭 誠、丸山守人   高電圧印加を利用したバイオディーゼル燃料の精製  

    環境科学会2010 年会  環境科学会2010 年会

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    Event date: 2010.9

    Language:Japanese  

    Venue:東京  

    国内学会

  • NAKAJIMA Tsunenori, YAMADA Kenta, TAKANASHI Hirokazu, OHKI Akira   Removal of boron and selenium from wet flue gas desulfurization wastewater  

    The Annual Conference of The Japan Institute of Energy  2010.8  The Japan Institute of Energy

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    Event date: 2010.8

    The removal of hazardous trace elements, such as B and Se from a wet flue gas desulfurization (FGD) wastewater obtained from a pulverized coal combustion system was examined. B and Hg were effectively removed from the simulated FGD wastewater by use of ion-exchange resins. However, Se was hard to remove from the wastewater by using the adsorption method. The removal of Se(VI) from the simulated FGD wastewater by use of bioreduction and TiO_2 photocatalytic reduction were also attempted. The removal efficiency of Se(VI) was considerably inhibited by some co-exist anions, such as NO_3^- or SO_4^<2-> under both reduction methods.

  • 中島常憲, 山田健太, 高梨啓和, 大木章   湿式排煙脱硫廃水中のホウ素やセレン等の除去  

    第19回日本エネルギー学会大会講演要旨集, pp. 4-5  第19回日本エネルギー学会大会講演要旨集, pp. 4-5

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    Event date: 2010.8

    Language:Japanese  

    Venue:東京  

    国内学会

  • 高梨啓和、大林慶一、中島常憲、大木 章、甲斐敬美、丸山守人、伊庭 誠、舟川知也   高電圧印加場を用いたバイオディーゼル燃料の精製  

    第19回日本エネルギー学会大会  第19回日本エネルギー学会大会

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    Event date: 2010.8

    Language:Japanese  

    Venue:東京  

    国内学会

  • Tsunenori Nakajima, Kenta Yamada, Hiroki Idehara, Hirokazu Takanashi, and Akira Ohki   Removal of Selenium (VI) from FGD Wastewater by Use of Photocatalytic Reduction   International conference

    Abstracts of Water and Environment Technology Conference 2010 (WET2010) p. 27  Abstracts of Water and Environment Technology Conference 2010 (WET2010) p. 27

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    Event date: 2010.6

    Language:English  

    Venue:Yokohama, Japan  

    国際学会

  • Misako KISHIDA, Yusuke KATO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Yuichi MIYAKE, Takashi KAMEYA   Production of Trichloromethylphenol from Organophosphorus Pesticide Fenitrothion by Chlorination   International conference

    Proc. Water and Environment Technology Conference 2010  Proc. Water and Environment Technology Conference 2010

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    Event date: 2010.6

    Language:English  

    Venue:Yokohama, Japan  

    国際学会

  • Misako KISHIDA, Yusuke KATO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI   Production of Chlorophenols from Organophosphorus Insecticides by Chlorination   International conference

    Proc. 9th China-Japan Symposium on Water Environment  Proc. 9th China-Japan Symposium on Water Environment

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    Event date: 2010.6

    Language:English  

    Venue:Guilin, China  

    国際学会

  • 山田健太、井手原広季、中島常憲、高梨啓和、大木章   石炭火力発電の排煙脱硫廃水からの有害微量元素除去  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 古園拓也、中島常憲、高梨啓和、大木章   酸素フラスコ燃焼法等を用いる生物試料中に含まれるヒ素の簡易分析  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 吉田哲郎、大林慶一、高梨啓和、中島常憲、大木 章、甲斐敬美、丸山守人、伊庭 誠、舟川知也   高電圧印加場を用いたバイオディーゼル燃料精製技術の開発  

    第75年化学工学会年会講演要旨集  第75年化学工学会年会講演要旨集

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    Event date: 2010.3

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • 中島常憲、横峯裕典、福田薫、高梨啓和、大木章   石炭灰の洗浄による有害微量元素の除去と溶出防止  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 岸田美紗子、隈部丈雄、高梨啓和、中島常憲、大木章   河川水中のフェニトロチオンおよびその主要分解生成物  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 高梨啓和、岸田美紗子、田爪洋平、中島常憲、大木章   変異原性物質生成能(MFP)による農薬の環境安全性評価  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 河井晴恵、松尾あすみ、中島常憲、高梨啓和、大木章   重金属の生態影響試験における錯形成反応の影響  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 隈部丈雄、岸田美紗子、田爪洋平、高梨啓和、中島常憲、大木章   1,3-ジクロロプロペン塩素処理物中の変異原性物質  

    第44回日本水環境学会年会講演集  第44回日本水環境学会年会講演集

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    Event date: 2010.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 中島常憲, 横峯裕典, 福田薫, 高梨啓和, 大木章   石炭灰からの有害微量元素の溶出挙動と溶出防止  

    第46回日本エネルギー学会石炭科学会議発表論文集  第46回日本エネルギー学会石炭科学会議発表論文集

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    Event date: 2009.11

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • 河井晴恵, 長谷川博之, 中島常憲, 高梨啓和, 大木章   石炭利用に伴う排水の生態影響試験  

    第46回日本エネルギー学会石炭科学会議発表論文集  第46回日本エネルギー学会石炭科学会議発表論文集

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    Event date: 2009.11

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • 井手原広季, 上山由貴, 中島常憲, 高梨啓和, 大木章   石炭の微生物脱硫とコークス化性  

    第46回日本エネルギー学会石炭科学会議発表論文集  第46回日本エネルギー学会石炭科学会議発表論文集

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    Event date: 2009.11

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • 山田健太, 井手原広季, 中島常憲, 高梨啓和, 大木章   湿式排煙脱硫廃水からの有害微量元素の除去  

    第46回日本エネルギー学会石炭科学会議発表論文集  第46回日本エネルギー学会石炭科学会議発表論文集

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    Event date: 2009.11

    Language:Japanese  

    Venue:鹿児島  

    国内学会

  • Tsunenori Nakajima, Hirokazu Takanashi, Takehiro Tominaga, Kenta Yamada, and Akira Ohki   Removal of arsenic and selenium compounds from aqueous media by using TiO2 photocatalytic reaction   International conference

    Proceedings of the 3rd Asia Pacific Regional Conference and Exhibition  Proceedings of the 3rd Asia Pacific Regional Conference and Exhibition

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    Event date: 2009.10

    Language:English  

    Venue:Chinese Taiwan  

    国際学会

  • Misako Kishida, Takeo Kumabe, Hirokazu Takanashi, Tsunenori Nakajima, Akira Ohki, Yuichi Miyake* and Takashi Kameya*   Mutagen in Fenitrothion Chlorinated   International conference

    Proceedings of the 3rd Asia Pacific Regional Conference and Exhibition  Proceedings of the 3rd Asia Pacific Regional Conference and Exhibition

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    Event date: 2009.10

    Language:English  

    Venue:Chinese Taiwan  

    国際学会

  • 岸田美紗子, 隈部丈雄, 加藤雄介, 高梨啓和, 中島常憲, 大木 章, 亀屋隆志, 三宅祐一   殺虫剤フェニトロチオン塩素処理物の同定  

    第58回日本分析化学会年会講演要旨集  第58回日本分析化学会年会講演要旨集

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    Event date: 2009.9

    Language:Japanese  

    Venue:北海道  

    国内学会

  • 古園拓也、小峯理恵子、中島常憲、高梨啓和、大木章   超低温捕集法とHPLC法を用いる海産物中のヒ素スペーシエーション  

    第58回日本分析化学会年会講演要旨集  第58回日本分析化学会年会講演要旨集

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    Event date: 2009.9

    Language:Japanese  

    Venue:北海道  

    国内学会

  • 吉田哲郎、高梨啓和、中島常憲、大木 章、甲斐 敬美、丸山守人、伊庭 誠、舟川知也   高電圧印加処理による粗製バイオディーゼル燃料の精製  

    第41回化学工学会秋季大会研究発表講演要旨集  第41回化学工学会秋季大会研究発表講演要旨集

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    Event date: 2009.9

    Language:Japanese  

    Venue:広島  

    国内学会

  • 岸田美紗子・隈部丈雄・高梨啓和・中島常憲・大木 章   消毒副生成物を考慮した農薬の管理  

    環境科学会2009年会プログラム  環境科学会2009年会プログラム

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    Event date: 2009.9

    Language:Japanese  

    Venue:北海道  

    国内学会

  • Hiroki Idehara, Shogo Okada, Tsunenori Nakajima, Hirokazu Takanashi, and Akira Ohki   Biodesulfurization of coal by an iron-oxidizing bacterium and removal of trace elements   International conference

    Proceedings of the 10th Japan-China Symposium on Coal and C1 Chemistry  Proceedings of the 10th Japan-China Symposium on Coal and C1 Chemistry

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    Event date: 2009.7

    Language:English  

    Venue:茨城. つくば  

    国際学会

  • Hirokazu Takanashi, Tsunenori Nakajima Akira Ohki, Takami Kai, Tomoya Funakawa, Kunimasa Ogi, Makoto Iba, Morito Maruyama   Purification of Crude Biodiesel Fuel by Electrical Fields - Part I Mechanism of Purification   International conference

    Proceedings of The 17th European Biomass Conference & Exhibition  Proceedings of The 17th European Biomass Conference & Exhibition

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    Event date: 2009.7

    Language:English  

    Venue:ハンブルグ, ドイツ  

    国際学会

  • Tsunenori Nakajima, Hiroyuki Hasegawa, Hirokazu Takanashi, and Akira Ohki   Ecotoxicity of effluents from low-rank coal handling processes and its reduction   International conference

    Proceedings of the 10th Japan-China Symposium on Coal and C1 Chemistry  Proceedings of the 10th Japan-China Symposium on Coal and C1 Chemistry

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    Event date: 2009.7

    Language:English  

    Venue:茨城, つくば  

    国際学会

  • 河井晴恵,長谷川博之,中島常憲,高梨啓和,大木章   オオミジンコを用いる重金属の生態影響試験における錯形成反応の影響  

    H20年度日本水環境学会九州支部研究発表会講演要旨集,pp. 24-25  H20年度日本水環境学会九州支部研究発表会講演要旨集,pp. 24-25

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    Event date: 2009.3

    Language:Japanese  

    Venue:熊本  

    国内学会

  • 山田健太、冨永剛弘、中島常憲、高梨啓和、大木 章   難除去性ヒ素およびセレン化合物除去への光触媒反応の利用  

    H20年度日本水環境学会九州支部研究発表会  H20年度日本水環境学会九州支部研究発表会

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    Event date: 2009.3

    Language:Japanese  

    Venue:熊本  

    国内学会

  • 長谷川博之,中島常憲,高梨啓和,大木章   褐炭利用プロセスにおける排水処理と環境毒性の評価  

    第45回日本エネルギー学会石炭科学会議  第45回日本エネルギー学会石炭科学会議

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    Event date: 2008.10

    Language:Japanese  

    Venue:京都  

    国内学会

  • 井手原広季,岡田章吾,中島常憲,高梨啓和,大木章   微生物による石炭脱硫と微量有害元素除去  

    第45回日本エネルギー学会石炭科学会議  第45回日本エネルギー学会石炭科学会議

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    Event date: 2008.10

    Language:Japanese  

    Venue:京都  

    国内学会

  • 小峯理恵子,永井拓志,下山巧太,中島常憲,高梨啓和,大木章   HPLCと原子蛍光分析を用いる生物試料中のヒ素および水銀のスペシエーション  

    第56回日本分析化学会年会  第56回日本分析化学会年会

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    Event date: 2008.9

    Language:Japanese  

    Venue:福岡  

    国内学会

  • 中島常憲,高梨啓和,冨永剛弘,山田健太,大木章   光触媒反応を用いる水相からのヒ素およびセレン化合物の除去  

    環境科学会2008年会  環境科学会2008年会

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    Event date: 2008.9

    Language:Japanese  

    Venue:東京  

    国内学会

  • 下山巧太,貞富葉子,中島常憲,高梨啓和,大木章   HPLC-冷蒸気原子蛍光分析による水銀スペシエーションと堆肥や汚泥試料への応用  

    第42回日本水環境学会年会  第42回日本水環境学会年会

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    Event date: 2008.3

    Language:Japanese  

    Venue:愛知  

    国内学会

  • 長谷川博之,村田有希,中島常憲,高梨啓和,大木章   重金属イオンの生態毒性試験における共存キレート剤の影響  

    第42回日本水環境学会年会  第42回日本水環境学会年会

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    Event date: 2008.3

    Language:Japanese  

    Venue:愛知  

    国内学会

  • 中島常憲,高梨啓和,鈴木賢治,冨永剛弘,大木章   光触媒-吸着剤 ハイブリッドを用いる難除去性ヒ素化合物の除去  

    第13回ヒ素シンポジウム講演集,pp. 44-45  第13回ヒ素シンポジウム講演集,pp. 44-45

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    Event date: 2007.11

    Language:Japanese  

    Venue:静岡  

    国内学会

  • 中島常憲,長谷川博之,高梨啓和,大木章   褐炭利用において発生する排水の環境負荷低減  

    第44回日本エネルギー学会石炭科学会議発表論文集,pp. 4-5  第44回日本エネルギー学会石炭科学会議発表論文集,pp. 4-5

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    Event date: 2007.10

    Language:Japanese  

    Venue:秋田  

    国内学会

  • 耿文華,中島常憲,高梨啓和,大木章   酸素フラスコ燃焼法を用いる石炭とアッシュ中の水銀定量法  

    第44回日本エネルギー学会石炭科学会議発表論文集,pp. 58-59  第44回日本エネルギー学会石炭科学会議発表論文集,pp. 58-59

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    Event date: 2007.10

    Language:Japanese  

    Venue:秋田  

    国内学会

  • 小峯理恵子,太田聖治,中島常憲,高梨啓和,大木章   水素化物発生原子分光分析を用いるヒ素スペシエーションにおけるHPLC法と超低温捕集法との比較  

    第55回日本分析化学会年会講演要旨集,p. 139  第55回日本分析化学会年会講演要旨集,p. 139

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    Event date: 2007.9

    Language:Japanese  

    Venue:徳島  

    国内学会

  • Tsunenori Nakajima, Hiroyuki Hasegawa, Yuki Murata, Tsuyoshi Kawahara, Hirokazu Takanashi, Akira Ohki   Effect of chelators and coexisting anions on the acute toxicity of some heavy metals to Daphnia magna   International conference

    Proc. of the 13th International Symposium on Toxicity Assessment, p. 154  Proc. of the 13th International Symposium on Toxicity Assessment, p. 154

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    Event date: 2007.8

    Language:English  

    Venue:富山  

    国際学会

  • Hiroyuki Hasegawa, Ken Kuzumaki, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Ecotoxicological evaluation of effluents from coal handling processes to freshwater organisms   International conference

    Proc. of the 13th International Symposium on Toxicity Assessment, p. 108  Proc. of the 13th International Symposium on Toxicity Assessment, p. 108

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    Event date: 2007.8

    Language:English  

    Venue:富山  

    国際学会

  • 中島常憲,長谷川博之,葛巻健,高梨啓和,大木章   石炭利用において発生する排水の環境負荷  

    日本水環境学会九州支部研究発表会講演要旨集, pp.39-40  日本水環境学会九州支部研究発表会講演要旨集, pp.39-40

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    Event date: 2007.3

    Language:Japanese  

    Venue:福岡  

    国内学会

  • Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Removal of arsenite, monomethylarsonate (MMA), and dimethylarsinate (DMA) from aqueous media by using photocatalyst-adsorbent system   International conference

    Proc. of the 1st International Symposium on Health Hazards of Arsenic Contamination of Groundwater and its Countermeasures, pp.152-157  Proc. of the 1st International Symposium on Health Hazards of Arsenic Contamination of Groundwater and its Countermeasures, pp.152-157

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    Event date: 2006.11

    Language:English  

    Venue:宮崎  

    国際学会

  • 中島常憲,葛巻健,長谷川博之,高梨啓和,大木章   褐炭および亜瀝青炭の水熱処理により発生する廃水の環境影響  

    第43回日本エネルギー学会石炭科学会議発表論文集,pp.17-18  第43回日本エネルギー学会石炭科学会議発表論文集,pp.17-18

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    Event date: 2006.10

    Language:Japanese  

    Venue:高知  

    国内学会

  • Akira Ohki, Shogo Okada, Tsunenori Nakajima, Hirokazu Takanashi   Biodesulfurization of coal and removal of trace elements   International conference

    Proc. of the 9th China-Japan Symposium on Coal and C1 Chemistry, pp.73-74  Proc. of the 9th China-Japan Symposium on Coal and C1 Chemistry, pp.73-74

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    Event date: 2006.10

    Language:English  

    Venue:中国  

    国際学会

  • Wenhua Geng, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Utilization of oxygen flask combustion method for the determination of mercury and sulfur in coal   International conference

    Proc. of the 9th China-Japan Symposium on Coal and C1 Chemistry, pp.17-18  Proc. of the 9th China-Japan Symposium on Coal and C1 Chemistry, pp.17-18

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    Event date: 2006.10

    Language:English  

    Venue:中国  

    国際学会

  • 下山巧太,中島常憲,高梨啓和,大木章   石炭からの水銀等微量元素の放出挙動と存在形態  

    第43回日本エネルギー学会石炭科学会議発表論文集,pp.39-40  第43回日本エネルギー学会石炭科学会議発表論文集,pp.39-40

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    Event date: 2006.10

    Language:Japanese  

    Venue:高知  

    国内学会

  • 岡田章吾,中島常憲,高梨啓和,大木章   微生物脱硫における石炭化学構造の変化  

    第43回日本エネルギー学会石炭科学会議発表論文集,pp.25-26  第43回日本エネルギー学会石炭科学会議発表論文集,pp.25-26

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    Event date: 2006.10

    Language:Japanese  

    Venue:高知  

    国内学会

  • Tsunenori Nakajima, Ken Kuzumaki, Hiroyuki Hasagawa, Hirokazu Takanashi,Akira Ohki   Environmental impacts of wastewater from low-rank coal handling processes in terms of mutagenicity and acute toxicity   International conference

    First International Conference on Environmental Toxicology  First International Conference on Environmental Toxicology

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    Event date: 2006.9

    Language:English  

    Venue:ギリシャ  

    国際学会

  • 耿文華,中島常憲,高梨啓和,大木 章   酸素フラスコ燃焼法を用いる石炭中のフッ素濃度測定  

    第55回日本分析化学会年会講演要旨集,p.225  第55回日本分析化学会年会講演要旨集,p.225

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    Event date: 2006.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • 村田俊温,伊東祐二,中島常憲,高梨啓和,大木章   石炭中の微量元素分析における低温灰化法の利用  

    第55回日本分析化学会年会講演要旨集,p.224  第55回日本分析化学会年会講演要旨集,p.224

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    Event date: 2006.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • 今吉裕隆,中島常憲,高梨啓和,大木章   廃棄物焼却灰の元素分析における蛍光X線分析と原子分光分析との比較  

    第55回日本分析化学会年会講演要旨集,p.224  第55回日本分析化学会年会講演要旨集,p.224

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    Event date: 2006.9

    Language:Japanese  

    Venue:大阪  

    国内学会

  • Tsunenori Nakajima, Kenji Suzuki, Hirokazu Takanashi, Akira Ohki   Removal of arsenite, monomethylarsonate (MMA), and dimethylarsinate (DMA) from aqueous media by combined use of TiO2-photocatalyst and adsorbent   International conference

    Proc. of the XXIst IUPAC Symposium on Photochemistry, p.492  Proc. of the XXIst IUPAC Symposium on Photochemistry, p.492

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    Event date: 2006.4

    Language:English  

    Venue:京都  

    国際学会

  • 今吉裕隆,中島常憲,高梨啓和,大木章   有機酸共存下で得られる廃棄物焼却灰溶出液の生態毒性試験  

    第40回日本水環境学会年会講演集, p.452  第40回日本水環境学会年会講演集, p.452

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    Event date: 2006.3

    Language:Japanese  

    Venue:宮城  

    国内学会

  • 中島常憲,鈴木賢治,森有子,高梨啓和,大木章   光触媒-吸着法を用いた難除去性ヒ素化合物の除去  

    第12回ヒ素シンポジウム講演集, pp.34-35  第12回ヒ素シンポジウム講演集, pp.34-35

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    Event date: 2005.11

    Language:Japanese  

    Venue:岩手  

    国内学会

  • 岡田章吾,上久保利智郎,中島常憲,高梨啓和,大木章   石炭の微生物脱硫に伴う有害微量元素除去  

    第42回石炭科学会議発表論文集, pp.47-48  第42回石炭科学会議発表論文集, pp.47-48

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    Event date: 2005.11

    Language:Japanese  

    Venue:愛知  

    国内学会

  • 中島常憲,葛巻健,中俣聡美,高梨啓和,大木章   褐炭から溶出する水溶性物質のバイオアッセイによる環境影響評価  

    第42回石炭科学会議発表論文集, pp.45-46  第42回石炭科学会議発表論文集, pp.45-46

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    Event date: 2005.11

    Language:Japanese  

    Venue:愛知  

    国内学会

  • Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki, Y. Fujita, T. Yamashita   Determination of some trace elements in coal and fly ash by hydride-generation atomic absorption spectrometry   International conference

    Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 3P510  Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 3P510

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    Event date: 2005.10

    Language:English  

    Venue:沖縄  

    国際学会

  • Tsunenori Nakajima, Satomi Nakamata, Hirokazu Takanashi, Akira Ohki   Bioassays for environmental impacts of water-soluble matters eluted from coal   International conference

    Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 2P504  Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 2P504

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    Event date: 2005.10

    Language:English  

    Venue:沖縄  

    国際学会

  • Wenhua Geng, Hitomi Maemura, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Determination of mercury and fluorine in coal by use of oxygen flask combustion method   International conference

    Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 2A10  Proc. of the 2005 International Conference on Coal Science and Technology, Paper No. 2A10

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    Event date: 2005.10

    Language:English  

    Venue:沖縄  

    国際学会

  • Akira Ohki, Shomei Tanamachi, Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi   Release behavior of mercury and other elements during pyrolysis of coal   International conference

    Proc. of the 6th International Symposium and Exhibition of Gas Cleaning at High Temperatures, Paper No. 3-1  Proc. of the 6th International Symposium and Exhibition of Gas Cleaning at High Temperatures, Paper No. 3-1

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    Event date: 2005.10

    Language:English  

    Venue:大阪  

    国際学会

  • 太田聖治,中村明美,中島常憲,高梨啓和,大木章   HPLC-水素化物発生原子蛍光分析による生体試料中のヒ素スペシエーション  

    第54回日本分析化学会年会講演要旨集, p.40  第54回日本分析化学会年会講演要旨集, p.40

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    Event date: 2005.8

    Language:Japanese  

    Venue:愛知  

    国内学会

  • Akira Ohki, Tsunenori Nakajima, Takashi Fukuda, Satomi Nakamata, Hirokazu Takanashi   Characterization of wastewater from coal handling processes in terms of environmental impacts   International conference

    Proc. of the 1st IWA-Aspire Conference & Exhibition, Paper No. 12F3  Proc. of the 1st IWA-Aspire Conference & Exhibition, Paper No. 12F3

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    Event date: 2005.7

    Language:English  

    Venue:シンガポール  

    国際学会

  • 太田聖治,中村明美,中島常憲,高梨啓和,大木章   水素化物発生原子分光分析によるヒ素のスペーシエーションと汚泥サンプルへの応用  

    第39回日本水環境学会年会講演要旨集, p.349  第39回日本水環境学会年会講演要旨集, p.349

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    Event date: 2005.3

    Language:Japanese  

    Venue:千葉  

    国内学会

  • 中島常憲,中俣聡美,福田貴志,高梨啓和,大木章   石炭から水相中へ溶出する物質の環境毒性  

    第41回石炭科学会議発表論文集, pp.31-32  第41回石炭科学会議発表論文集, pp.31-32

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    Event date: 2004.11

    Language:Japanese  

    Venue:群馬  

    国内学会

  • 上久保利智郎,岡田章吾,中島常憲,高梨啓和,大木章   石炭の微生物脱硫と微量元素浸出挙動  

    第41回石炭科学会議発表論文集, pp.29-30  第41回石炭科学会議発表論文集, pp.29-30

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    Event date: 2004.11

    Language:Japanese  

    Venue:群馬  

    国内学会

  • Akira Ohki, Yuka Sakaguchi, Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi   Surface enrichment of hazardous elements in coal fly ash and their leaching behavior   International conference

    Proc. the 3rd Asian-Pacific Landfill Symposium, pp.579-585  Proc. the 3rd Asian-Pacific Landfill Symposium, pp.579-585

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    Event date: 2004.10

    Language:English  

    Venue:福岡  

    国際学会

  • Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki, Y. Fujita, T. Yamashita   Determination of major and trace elements in coal fly ash by microwave-assisted acid-digestion and ICP-AES analysis   International conference

    Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-3  Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-3

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    Event date: 2004.9

    Language:English  

    Venue:大阪  

    国際学会

  • Tsunenori Nakajima, Takashi Fukuda, Hirokazu Takanashi, Akira Ohki   Leaching of organic matters from coal into aqueous media and their ecotoxicities   International conference

    Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-2  Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-2

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    Event date: 2004.9

    Language:English  

    Venue:大阪  

    国際学会

  • Akira Ohki, Yuka Sakaguchi, Tsunenori Nakajima, Hirokazu Takanashi   Analysis of arsenic, boron, and some other elements in coal fly ash by X-ray photoelectron spectroscopy   International conference

    Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.17-2  Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.17-2

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    Event date: 2004.9

    Language:English  

    Venue:大阪  

    国際学会

  • 太田聖治,中村明美,中島常憲,高梨啓和,大木章   水素化物発生原子吸光分析および原子蛍光分析によるヒ素のスペーシエーション  

    第53回日本分析化学会年会講演要旨集, p.6  第53回日本分析化学会年会講演要旨集, p.6

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    Event date: 2004.9

    Language:Japanese  

    Venue:千葉  

    国内学会

  • Shomei Tanamachi, Akira Iwashita, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Release behavior of mercury and arsenic from coal during pyrolysis   International conference

    Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-4  Proc. the 21st Annual International Pittsburgh Coal Conference, Paper No.P5-4

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    Event date: 2004.9

    Language:English  

    Venue:大阪  

    国際学会

  • 中島 常憲, 園田 愛留音, 伊藤 沙織, 高梨 啓和, 大木 章   桜島火山降灰中有害無機元素の分析前処理法検討とその溶出  

    日本分析化学会講演要旨集  2019.8  (公社)日本分析化学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 川口 悠太, 中島 常憲, 高梨 啓和, 大木 章   酸素フラスコ燃焼とランタンアリザリンコンプレキソン法を組み合わせた石炭中のフッ素分析法の開発  

    日本分析化学会講演要旨集  2019.8  (公社)日本分析化学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 杉安 雅貴, 小濱 郁也, 中島 常憲, 高梨 啓和, 大木 章   酸素フラスコ燃焼法とCVAASを用いる食品試料の中の水銀分析  

    日本分析化学会講演要旨集  2017.8  (公社)日本分析化学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 中島常憲, 冨士龍正, 高梨啓和, 大木 章   固体環境試料に含まれるフッ素の水環境への溶出と簡易分析  

    分析日本分析化学会第66年会  2017.9 

  • 中島常憲   固体環境試料中の微量元素分析  

    公益社団法人日本作業環境測定協会九州支部講演会  2019.7 

  • 阿比留和也, 田中華子, 高梨啓和, 中島常憲, 大木 章, 松下 拓, 近藤貴志, 亀屋隆志   塩素処理による土壌燻蒸剤1,3-ジクロロプロペンからの1,3-ジクロロアセトンの生成  

    平成24年度日本水環境学会九州支部研究発表会  2013.2 

  • 高梨啓和, 岸田美紗子, 小舟宏輝, 中島常憲, 大木章   変異原性物質生成能(MFP)による農薬の環境安全性評価  

    H19年度日本水環境学会九州支部研究発表会  2008.3 

  • 高梨啓和, 岸田美紗子, 田爪洋平, 中島常憲, 大木章   変異原性物質生成能(MFP)による農薬の環境安全性評価  

    第44回日本水環境学会年会  2010.3 

  • 佐潟輝洋, 高梨啓和, 中島常憲, 大木章, 甲斐敬美, 筒井俊雄, 寺岡行雄, 上村芳三   屋久島における木質ペレット生産のコスト試算  

    環境科学会2007年会  2007.9 

  • 今吉裕隆, 中島常憲, 高梨啓和, 大木章   廃棄物焼却灰の元素分析における蛍光X線分析と原子分光分析との比較  

    日本分析化学会第55年会  2006.9 

  • 緒方秀樹, 高梨啓和, 大山謙二, 中島常憲, 大木章   廃水処理を伴わないバイオディーゼル燃料の精製  

    化学工学会第71回年会  2006.2 

  • 高梨 啓和, 緒方 秀樹, 飯山 愛, 大山 謙二, 中島 常憲, 大木 章   廃食油より製造したバイオディーゼル燃料中の不純物除去  

    化学工学会第38回秋季大会  2006.9  公益社団法人 化学工学会

  • IDEHARA Hiroki, OKADA Shogo, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Biodesulfurization of coal and the removal of trace hazardous elements  

    2008.10  The Japan Institute of Energy

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    The biodesulfurization of nine coals was examined by use of Thiobacillus. ferrooxidans, and the factors which affect the efficiency of biodesulfurization were investigated. The % removal of inorganic sulfur varied from 23-90% depending upon the type of coal. The pH increase in the medium was caused by the leaching of Ca from coal, and the % removal of inorganic sulfur was decreased. The prediction method for biodesulfurization efficiency was developed by use of acid leaching test (0.1M HNO_3). Also the removal of hazardous trace elements, such as As and Hg, from coal during biodesulfurization process was examined.

  • OKADA Shogo, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Chemical structure change of biodesulfurized coal  

    2006.10  The Japan Institute of Energy

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    Six coals were treated by the biodesulfurization with Thiobacillus ferrooxidans, and the removal of inorganic sulfur from coal and the chemical structure change of biodesulfurized coal were investigated. The % removal of inorganic sulfur varied from 37-88% depending upon the increasing of pH in the medium and the leaching of Ca from coal during the biodesulfurization. When the chemical structure change of biodesulfurized coal was measured by FT-IR, it was found that elemental sulfur generated on the surface of the biodesulfurized coal treated in the high medium pH. From the XPS measurement, the reduced sulfur compounds were removed in the PT coal, and the oxidized form sulfur was removed in the SS030 coal.

  • 緒方秀樹, 飯山愛, 高梨啓和, 大山謙二, 中島常憲, 大木章   新規なBDF精製技術の開発  

    H18年度化学工学会九州支部大会  2006.11 

  • 今吉裕隆, 中島常憲, 高梨啓和, 大木章   有機酸共存下で得られる廃棄物焼却灰溶出液の生態毒性試験  

    第40回日本水環境学会年会  2006.3 

  • 橋本扶美, 有島由紀子, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   未知環境変化体(PTPWs)の構造推定と半定量分析:ネオニコチノイド系殺虫剤imidaclopridを例として  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 佐潟輝洋, 松本直樹, 高梨啓和, 大山謙二, 中島常憲, 大木章   杉バークの乾式メタン発酵  

    化学工学会第71回年会  2006.2 

  • 山本健太郎, 根上武仁, 矢野裕明, 蓬原康志, 島加奈子, 中島常憲   桜島火山灰と産業廃棄物リサイクルマテリアルを用いた藻場基盤材の開発  

    第48回地盤工学研究発表会  2013.7 

  • 園田愛留音, 杉安雅貴, 中島常憲, 高梨啓和, 大木 章   桜島火山降灰の微量元素分析と溶出挙動  

    分析日本分析化学会第66年会  2017.9 

  • 中島常憲, 原口幸征, 高梨啓和, 大木章   桜島降灰中に含まれる水銀等微量元素の分析  

    第20回環境化学討論会  2011.7 

  • 岸田美紗子, 隈部丈雄, 加藤雄介, 高梨啓和, 中島常憲, 大木 章, 亀屋隆志, 三宅祐一   殺虫剤フェニトロチオン塩素処理物の同定  

    日本分析化学会第58年会  2009.9 

  • 太田聖治, 中村明美, 中島常憲, 高梨啓和, 大木章   水素化物発生原子分光分析によるヒ素のスペーシエーションと汚泥サンプルへの応用  

    第39回日本水環境学会年会  2005.3 

  • 小峯理恵子, 太田聖治, 中島常憲, 高梨啓和, 大木章   水素化物発生原子分光分析を用いるヒ素スペシエーションにおけるHPLC法と超低温捕集法との比較  

    日本分析化学会第56年会  2007.9 

  • 太田聖治, 中村明美, 中島常憲, 高梨啓和, 大木章   水素化物発生原子吸光分析および原子蛍光分析によるヒ素のスペーシエーション  

    日本分析化学会第53年会  2004.9 

  • 鬼束豊英, 高梨啓和, 中島常憲, 大木章, 秋葉道宏, 相沢貴子   水道水の変異原性レベルの解析および12年前との比較  

    第40回日本水環境学会年会  2006.3 

  • NAKAJIMA Tsunenori, HARAGUCHI Kosei, MINAMI Yuki, KANECHIKA Fumiaki, TAKANASHI Hirokazu, OHKI Akira   Analysis of Trace Elements in Coal by Use of Atomic Spectrometry  

    2012.10  The Japan Institute of Energy

     More details

    Coal contains various hazardous trace elements. For these hazardous elements, especially volatile elements, such as Hg is in great concern, because those elements are likely to be released into air when coal is burned. In this study, we examined the determination of trace elements in coal by use of microwave-acid digestion (MW-AD) followed by inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma atomic emission spectrometry (ICP-AES), and the effect of MW-AD condition upon the recovery of trace elements was investigated. In addition, the concentration of Hg in coal was measured by use of heat-vapor atomic absorption spectrometry (HVAAS).

  • Hirokazu TAKANASHI, Akiko TANAKA, Tsunenori, NAKAJIMA, Akira OHKI   Removal of arsenic from groundwater by a newly developed adsorbent  

    Asian Water Quality 2003  2003.11 

  • T. Nakajima, K. Suzuki, H. Takanashi, A. Ohki   Removal of arsenite, monomethylarsonate (MMA), and dimethylarsinate (DMA) from aqueous media by combined use of TiO2-photocatalyst and adsorbent  

    the XXIst IUPAC Symposium on Photochemistry  2006.4 

  • T. Nakajima, H. Takanashi, A. Ohki   Removal of arsenite, monomethylarsonate (MMA), and dimethylarsinate (DMA) from aqueous media by using photocatalyst-adsorbent system  

    The 1st International Symposium on Health Hazards of Arsenic Contamination of Groundwater and its Countermeasures  2006.11 

  • Tsunenori Nakajima, Ryou Kamito, Kenta Yamada, Hirokazu Takanashi, Akira Ohki   Removal of Hazardous Trace Elements in Wet Flue Gas Desulfurization Water from Coal Fired Plants  

    2013 International Conference on Coal Science and Technology (ICCS&T 2013)  2013.10 

  • Y.-H. Xu, A. Ohki, T. Kabashima, T. Nakajima, S. Maeda   Removal of heavy metals in coal by unused natural resources  

    10th International Conference on Coal Science (ICCS 1999)  1999.9 

  • Tsunenori NAKAJIMA, Yoshiaki UEYAMA, Hiroki IDEHARA, Hirokazu TAKANASHI, Akira OHKI   Removal of inorganic sulfur and trace elements from coal during biodesulfurization  

    The 11th Japan-China Symposium on Coal and C1 Chemistry  2011.8 

  • A Ohki, A Iwashita, S Tanamachi, T Nakajima, H Takanashi   Removal of mercury from coal by mild pyrolysis and chelate extraction.  

    American Chemical Society, Division of Fuel Chemistry 2003  2003.3  AMER CHEMICAL SOC

  • Tsunenori NAKAJIMA, Kenta YAMADA, Hiroki IDEHARA, Hirokazu TAKANASHI, Akira OHKI   Removal of Selenium (VI) from FGD Wastewater by Use of Photocatalytic Reduction  

    Water and Environment Technology Conference 2010  2010.6 

  • H. Takanashi, Y. Uemura, T. Kai, T. Tsutsui, T. Nakajima, A. Ohki, Y. Matsumoto, K. Fujie, M. Suzuki   Utilization of hydroelectric power and biomass energy in Yakushima island - role of fuel cell and biomass boiler  

    China/USA/Japan Joint Chemical Engineering Conference  2005.10 

  • W. Geng, T, Nakajima, H. Takanashi, A. Ohki   Utilization of oxygen flask combustion method for the determination of mercury and sulfur in coal  

    the 9th China-Japan Symposium on Coal and C1 Chemistry  2006.10 

  • 有島由紀子, 玉島由美子, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   イオン移動度質量分析による農薬の未知環境変化体(PTPWs)の構造推定  

    第50回日本水環境学会年会  2016.3 

  • 河井晴恵, 長谷川博之, 中島常憲, 高梨啓和, 大木章   オオミジンコを用いる重金属の生態影響試験における錯形成反応の影響  

    H20年度日本水環境学会九州支部研究発表会講演要旨集  2009.3 

  • 隈部丈雄, 岸田美紗子, 高梨啓和, 中島常憲, 大木章, 三宅祐一, 亀屋隆志   フェニトロチオン分解生成物の変異原性  

    H20年度日本水環境学会九州支部研究発表会講演要旨集  2009.3 

  • 高梨啓和, 阿比留和也, 田中華子, 中島常憲, 大木 章, 近藤貴志, 亀屋隆志, 松下 拓   フェニトロチオン等を塩素処理した際の副生物の探索  

    環境科学会2012年会  2012.9 

  • 中島常憲, 平 美冴, 南 有紀, 高梨啓和, 大木 章   マイクロ波支援酸分解を前処理とするICP-MS法による石炭中の水銀等微量元素分析  

    日本エネルギー学会第51回石炭科学会議  2014.10 

  • 原口幸征, 古園拓也, 中島常憲, 高梨啓和, 大木 章   マイクロ波照射-酸分解とICP-MSを用いる固体環境試料中の微量元素分析  

    日本分析化学会第60年会  2011.9 

  • 松本直樹, 奥川美里, 佐潟輝洋, 高梨啓和, 大山謙二, 中島常憲, 大木章   乾式メタン発酵の基質依存性の検討  

    環境科学会2005年会  2005.9 

  • 謝 暁峰, 大木 章, 中島常憲, 前田 滋   低品位炭の改質と改質助剤の影響  

    日本化学会第72春季年会  1997.3 

  • OHKI Akira, XIE Xiaofeng, NAKAJIMA Tsunenori, MAEDA Shigeru   Change in Surface Characteristics of Coal in Upgrading of Low-Rank Coals  

    Proceedings of Conference on Coal Science  1996.10  The Japan Institute of Energy

     More details

    Upgrading of low-rank coals, such as Loy Yang and Yallourn coals, has been performed by use of "Hot Water Drying (HWD)" method. Influence of varying the treatment temperature upon coal properties, such as hygroscopicity, functional group content, and specific surface area, has been investigated. As the treatment temperature was elevated, the hygroscopicity of coal decreased; while the content of hydrophilic groups, such as hydroxyl and carbonyl groups, decreased.

  • 中島常憲, 高梨啓和, 鈴木賢治, 冨永剛弘, 大木章   光触媒-吸着剤 ハイブリッドを用いる難除去性ヒ素化合物の除去  

    第13回ヒ素シンポジウム  2007.11 

  • 中島常憲, 鈴木賢治, 森有子, 高梨啓和, 大木章   光触媒-吸着法を用いた難除去性ヒ素化合物の除去  

    第12回ヒ素シンポジウム  2005.11 

  • 中島常憲, 山田健太, 上戸 龍, 高梨啓和, 大木 章   光触媒を用いた環境浄化システムのセレン酸含有廃水処理への応用  

    環境科学会2011年会  2011.9 

  • 森松恒一郎, 大木 章, 中島常憲, 前田 滋   化学分析による石炭表面の官能基分析  

    第8回エネルギー工学研究会  1997.5 

  • Tsunenori Nakajima, Hirokazu Takanashi, Takehiro Tominaga, Kenta Yamada, Akira Ohki   Removal of arsenic and selenium compounds from aqueous media by using TiO2 photocatalytic reaction  

    The 3rd Asia Pacific Regional Conference and Exhibition  2009.10 

  • Hirokazu Takanashi, Hideki Ogata, Tetsuro Yoshida, Tsunenori Nakajima, Akira Ohki, Takami Kai   Reduction of Water Consumption in Purifying Crude Biodiesel Fuel  

    8th China/Japan Water Environment Conference  2008.11 

  • Hirokazu TAKANASHI, Kenji FUJIKI, Tomohiro HAMA, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Takashi KAMEYA, Takashi KONDO, Taku MATSUSHITA   Relationship between Chemical Structures of Pesticides and Their Mutagen Formation Potential (MFP)  

    Water and Environment Technology Conference 2014  2014.6 

  • S. Tanamachi, A. Iwashita,T, Nakajima, H. Takanashi, A. Ohki   Release behavior of mercury and arsenic from coal during pyrolysis  

    21st Annual International Pittsburgh Coal Conference (PCC 2004)  2004.9 

  • A. Ohki, S. Tanamachi, A. Iwashita,T, Nakajima, H. Takanashi   Release behavior of mercury and other elements during pyrolysis of coal  

    The 6th International Symposium and Exhibition of Gas Cleaning at High Temperatures  2005.10 

  • Hirokazu Takanashi, Kazuya Abiru, Misako Kishida, Tsunenori Nakajima, Akira Ohki, Taku Matsushita, Takashi Kameya   Qualitative analysis of chlorination byproducts of organophosphorus pesticide fenitrothion  

    The IWA World Water Congress & Exhibition, Busan  2012.9 

  • Hirokazu Takanashi, Hideki Ogata, Tsunenori Nakajima, Akira Ohki   Purification of Crude Biodiesel Fuel by Emusification followed with Demulsification  

    2008 Taiwan /Korea /Japan ChE Conference and 55th TwIChE Annual Conference  2008.11 

  • H. Takanashi, T. Sagata, T, Nakajima, A. Ohki, T. Kai, Y. Uemura, Y. Teraoka   Prediction of fuelwood value index from elemental composition  

    2006 Japan/Taiwan/Korea Chemical Engineering Conference  2006.11 

  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA, Taku MATSUSHITA   Production of chloro-5-hydroxy-2-nitrobenzoic acid through chlorination of 3-methyl-4-nitrophenol, a typical hydrolysate of fenitrothion  

    Water and Environment Technology Conference 2012  2012.6 

  • Misako KISHIDA, Yusuke KATO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA,Akira OHKI   Production of Chlorophenols from Organophosphorus Insecticides by Chlorination  

    9th China-Japan Symposium on Water Environment  2010.6 

  • Hirokazu TAKANASHI, Kazuya ABIRU, Hanako TANAKA, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA, Taku MATSUSHITA   Production of chlorophenols through chlorination of 3-methyl-4-nitrophenol, a typical hydrolysate of fenitrothion  

    SETAC Asia/Pacific 2012 Annual Meeting  2012.9 

  • Misako KISHIDA, Yusuke KATO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Yuichi MIYAKE, Takashi KAMEYA   Production of Trichloromethylphenol from Organophosphorus Pesticide Fenitrothion by Chlorination  

    Water and Environment Technology Conference 2010  2010.6 

  • A. Ohki, X.-F. Xie, Y. Umihira, T. Nakajima, S. Maeda   Properties of hydrothermally-treated coals and the coal water mixture (CWM)  

    10th International Conference on Coal Science (ICCS 1999)  1999.9 

  • H. Takanashi, T. Hirano,T, Nakajima,A. Ohki   Purification of bio-diesel fuel by electrical demulsification  

    5th Asian Pacific Conference on Sustainable Energy and Environmental Technologies  2005.5 

  • Hirokazu TAKANASHI, Ryoji KUBO, Tsunenori NAKAJIMA, Akira OHKI, Takami KAI, Tomoya FUNAKAWA, Makoto IBA, Morito MARUYAMA   Purification of Crude Biodiesel Fuel by Electrical Fields - Part I A new separator using simplified concept of multi extraction stages  

    19th European Biomass Conference and Exhibition  2011.6 

  • Hirokazu Takanashi, Tsunenori Nakajima Akira Ohki, Takami Kai, Tomoya Funakawa, Kunimasa Ogi, Makoto Iba, Morito Maruyama   Purification of Crude Biodiesel Fuel by Electrical Fields - Part I Mechanism of Purification  

    17th European Biomass Conference & Exhibition  2009.7 

  • 高梨啓和, 寺田修達, 中島常憲, 大木章, 亀屋隆志, 澤井淳, 宮本信一   ノンターゲット分析による下水中の生態影響物質の探索  

    第52回日本水環境学会年会  2018.3 

  • 高梨啓和, 寺田修達, 中島常憲, 亀屋隆志, 澤井淳, 澤井淳, 宮本信一   ノンターゲット分析と全排水毒性試験による下水中の生態影響物質の探索  

    第66回質量分析総合討論会2018年  2018.5 

  • 橋本扶美, 大葉佐世子, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   ネオニコチノイド系農薬ジノテフランの未知環境変化体の構造推定  

    第17回日本水環境学会シンポジウム  2017.9 

  • 橋本扶美, 北ノ園龍介, 有島由紀子, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   ネオニコチノイド系農薬ジノテフランおよびその環境変化体の河川水中濃度  

    第19回日本水環境学会シンポジウム  2016.9 

  • 橋本扶美, 北之園龍介, 有島由紀子, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   ネオニコチノイド系農薬とその環境変化体(PTPWs)の河川水中濃度測定  

    環境科学会2016年会  2016.9 

  • 藤木健司, 福﨑悠史郎, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   ネオニコチノイド系農薬とその環境変化体(PTPWs)の定量分析  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 高梨啓和, 藤木健司, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   タンデムLC 分析によるhigh through put LC/MS/MS 分析  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 雲田美紀, 中島常憲, 高梨啓和, 大木章, 渡辺圭太郎   スイートニングプロセス廃水の処理  

    H20年度日本水環境学会九州支部研究発表会講演要旨集  2009.3 

  • 岩下章, 坂元裕一, 中島常憲, 高梨啓和, 大木章   キレート抽出やマイルド熱分解を用いる石炭からの水銀事前除去  

    日本エネルギー学会第38回石炭科学会議  2001.11 

  • 高梨啓和, 松元愛子, 脇黒丸央, 中島常憲, 大木章   エミッション再資源化における非意図的生成物質の削減  

    化学工学会第67年会  2002.3 

  • 大葉佐世子, 橋本扶美, 諸留成志朗, 高梨啓和, 中島常憲, 上田岳彦, 門川淳一, 齋田倫範, 石川英律, 宮本信一   エトフェンプロックスおよびその環境変化体の同時分析  

    第53回日本水環境学会年会  2019.3 

  • 高梨啓和, 橋本扶美, 大葉佐世子, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   イオン移動度分析と分子動力学計算に基づいた未知変化体の構造推定  

    第19回日本水環境学会シンポジウム  2016.9 

  • 高梨啓和, 大葉佐世子, 桐原晃希, 中島常憲, 門川淳一, 上田岳彦, 石川英律, 宮本信一   アセチルコリン受容体へのジノテフラン環境変化体の結合親和性評価  

    第53回日本水環境学会年会  2019.3 

  • NAKAJIMA Tsunenori, YAMASHITA Masashi, KUMABE Yasuyuki, OHKI Akira, MAEDA Shigeru   Analysis of Hydrothermally-Treated Low-Rank Coals and Weathered Coals by Use of X-ray Photoelectron Spectroscopy  

    Proceedings of Conference on Coal Science  1999.10  The Japan Institute of Energy

     More details

    X-ray photoelectron spectroscopy (XPS) was used to quantify the carbon changes and nitrogen forms present in hydrothermally-treated low rank coals (HTT temperatures between 200-350℃) and weathered coals. For HTT coals, the content of carboxyl group greatly decreased due to the treatment, and some quaternary nitrogen species changed to pyridinic form. In case of the weathered coals, the content of carboxyl group increased with the increasing of weathering days, and the content of quaternary nitrogen species also increased.

  • 隈部 康誉, 中島 常憲, 大木 章   X線光電子分光を用いる石炭および風化炭の化学構造の解析  

    第37回石炭科学会議  2000.9 

  • 大木章, 隈部康誉, 中村有樹, 中島常憲, 高梨啓和   X線光電子分光による石炭飛灰および廃棄物焼却飛灰の分析  

    第13回廃棄物学会研究発表会  2002.11 

  • SAKAGUCHI Yuka, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Analysis of coal fly ash by X-ray photoelectron spectroscopy  

    2002.10  The Japan Institute of Energy

     More details

    According to X-ray photoelectron spectroscopy (XPS) analysis for coal fly ash, relatively volatile elements, such as arsenic and lead, was found to be highly concentrated on the surface. Leaching experiments for the ash were performed by use of EDTA or nitric acid, and the leaching of each element was examined by digestion and ICP-AES (whole ash) as well as XPS (surface). Arsenic in fly ash was greatly leached, whereas the leaching of lead was small.

  • 中村有, 隈部康誉, 中島常憲, 高梨啓和, 大木章   XPSによる石炭フライアッシュ中のヒ素等重金属の解析  

    日本エネルギー学会第38回石炭科学会議  2001.11 

  • 高梨啓和, 浜 知広, 中島常憲, 大木 章, 上田岳彦   UPLC-ESI-TOFMS と多変量解析を用いた3-methyl-4-nitrophenol塩素処理物中の変異原の探索  

    第63回質量分析総合討論会  2015.6 

  • Takamasa TANAKA, Shutatsu TERADA, Syodai Fukumoto, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Atsushi SAWAI, Nobukazu MIYAMOTO, Takashi KAMEYA   Targeted Screening and Risk Assessment of Ecotoxicants in Sewage Water by Liquid Chromatograph-High Resolution Mass Spectrometer  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Sayoko OBA, Fumi HASHIMOTO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Jun-ichi KADOKAWA, Hidenori ISHIKAWA, Nobukazu MIYAMOTO   Synthesis, Environmental Monitoring and Risk Evaluation of Etofenprox-Ester  

    Water and Environment Technology Conference 2017  2017.7 

  • Akihito IIHOSHI, Sayoko OBA, Kouki KIRIHARA, Fumi HASHIMOTO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Takehiko UEDA, Jun-ichi KADOKAWA, Hidenori ISHIKAWA, Nobukazu MIYAMOTO   Synthesis of 4-hydroxydinotefuran, a Transformation Product of Neonicotinoid Pesticide Dinotefuran  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Hirokazu TAKANASHI, Hisashi WAKIKUROMARU, Tsunenori NAKAJIMA, Akira OHKI   Survey of Mutagenicity of Drinking Water in Kyushu Region Japan and Comparison with the Results in 1992  

    11th International Symposium on Toxicity Assessment  2003.6 

  • A. Ohki, Y. Sakaguchi, A. Iwashita,T, Nakajima, H. Takanashi   Surface enrichment of hazardous elements in coal fly ash and their leaching behavior  

    3rd Asian-Pacific Landfill Symposium  2004.10 

  • Akira OHKI, Yuka SAKAGUCHI, Akira IWASHITA, Tsunenori NAKAJIMA, Hirokazu TAKANASHI   Surface Characterization of Coal Fly Ash by X-ray Photoelectron Spectrometry  

    12th International Conference on Coal Science (ICCS 2003)  2003.11 

  • Masaki OTSUCHIHASHI, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Takehiko UEDA, Jun-ichi KADOKAWA   Structural elucidation of a pesticide transformation product of neonicotinoid pesticide dinotefuran  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Yukiko ARISHIMA, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Takashi KAMEYA, Takashi KONDO, Taku MATSUSHITA   Structural Characterization of a Photoproduct from DCMU (diuron) by High Resolution LC-MS  

    Water and Environment Technology Conference 2014  2014.6 

  • Tsunenori NAKAJIMA, Kenta YAMADA, Hiroki IDEHARA, Hirokazu TAKANASHI, Akira OHKI   Removal of selenium from Wastewater by photocatalytic and biological reduction  

    Water and Environment Technology Conference 2012  2012.6 

  • Misako KISHIDA, Hirokazu TAKANASHI, Tsunenori NAKAJIMA,Akira OHKI   A screening study on mutagen formation potential of agricultural chemicals  

    19th Japan/Korea Symposium on Water Environment  2010.10 

  • Hirokazu TAKANASHI, Tomohiro HAMA, Tsunenori NAKAJIMA, Akira OHKI, Takashi KONDO, Takashi KAMEYA, Taku MATSUSHITA   A screening study of mutagen formation potential (MFP) of pesticide transformation products in water environments (PTPWs) to investigate the MFP changes from their parent pesticides through transformations  

    Water and Environment Technology Conference 2013  2013.6 

  • Fumi HASHIMOTO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Jun-ichi KADOKAWA, Nobukazu MIYAMOTO, Hidenori ISHIKAWA   A Method for Monitoring Pesticide Transformation Products in Water environments (PTPWs) without their Authentic Standards  

    Water and Environment Technology Conference 2017  2017.7 

  • Fumi HASHIMOTO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Jun-ichi KADOKAWA, Nobukazu MIYAMOTO, Hidenori ISHIKAWA   A Method for Detecting Pesticide Transformation Products in Water environments (PTPWs) without their Authentic Standards  

    3rd THU-Kagoshima Environmental Forum  2017.12 

  • 中島常憲, 鶴ヶ崎正人, 大木章, 中建介, 前田滋   石炭表面への添加剤吸着とCWMスラリー化特性  

    日本化学会第70春季年会  1996.3 

  • 中島 常憲, 海平 泰司, 武山 知弘, 東 顕正, 大木 章   石炭表面の結合水量によるCWMスラリー化特性の評価  

    第37回石炭科学会議  2000.9 

  • 海平泰司, 武山知弘, 東 顕正, 中島常憲, 大木 章   石炭表面の結合水によるCWMスラリー化特性評価  

    日本化学会中国四国・同九州支部合同大会  2000.10 

  • 中島常憲, 下村恭子, 高梨啓和, 大木 章   石炭低温熱分解時における水銀放出と石炭特性との関係  

    第53回日本エネルギー学会石炭科学会議  2016.10 

  • OHKI Akira, MAEDA Masahiko, YAMASHITA Hiroyuki, XU Yan-Hua, NAKAJIMA Tsunenori   Determination of Metal Concentration in Coal by Microwave-Digestion and ICP-AES Measurement  

    2001.11  The Japan Institute of Energy

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    The concentrations of minor and trace metals in coal were determined by use of microwave-digestion and ICP-AES measurement. The values obtained by this method were checked with the certified values for several standard reference materials. The metal concentrations of SS coals (SS001-024) were measured and the obtained values were in good agreement with those from the JIS-method for Al, Ca, Fe, and Mg.

  • IWASHITA Akira, TANAMACHI Shomei, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Advanced removal of mercury from coal by extraction method and mild pyrolysis  

    2002.10  The Japan Institute of Energy

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    Advanced removal of mercury was attempted by use of extraction method and mild pyrolysis. When sulfur-containing chelating agents were used in the extraction, 30-70% of mercury in coal was extracted to the aqueous solution. The mild pyrolysis at 300℃ for 1h resulted in the removal of 20-80% of mercury in coal. The mercury removal efficiency for the mild pyrolysis was found to be correlated with that for the extraction method.

  • MAEDA Masahiko, YAMAGUCHI Yoshimi, XU Yanhua, NAKAJIMA Tunenori, OHKI Akira, MAEDA Shigeru   Analysis and removal of hazardous heavy metals in coal  

    Proceedings of Conference on Coal Science  1999.10  The Japan Institute of Energy

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    Determination of arsenic, mercury and lead in NIST standard coals was done using ICP-AES or AAS method. Several tests were also conducted to find a suitable and practical method for the exact determination of the said toxic heavy metals in coal. By use of hydrothermally-treated alginic acid (HTTAA), removal of arsenic and lead in some coal samples was conducted. The leaching ability of HTTAA was comparable to that of EDTA.

  • HOSHINO Daisaku, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of arsenic and heavy metals from coal fly ash by hydrothermal treatment and extraction method  

    2002.10  The Japan Institute of Energy

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    The removal of arsenic from coal fly ash was attempted by hydrothermal treatment and chelating agent extraction. When fly ash was hydrothermally-treated at 200℃, ca.80% of arsenic was removed. For the wastewater generated, only the arsenic concentration was over the wastewater quality standards, while those of other elements met the standards. A decomposition product of pectin was found to be an effective aqueous chelating agent. By use of the product, arsenic was also efficiently removed from coal fly ash.

  • IWASHITA Akira, SAKAGUCHI Yuka, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira, KAMBARA Shinji   Leaching behavior of boron, selenium, and other elements from coal fly ash  

    2003.10  The Japan Institute of Energy

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    Leaching behavior of B, Se, and other elements from twenty-one of coal fly ash (CFA) was examined. The correlation between the leaching amount and the concentration of element in CFA was investigated. The leaching amounts of B, Ca, Se were essentially dependent upon their concentrations in CFA. The effect of pH in the leachate was assessed, and the leaching of Se tended to increase as the pH in the leachate was elevated. For B, the effect of pH upon the leaching was complex, and when the concentration of Ca was higher in the leachate, the formation of CaB(OH)_4^+ was suggested, resulting in the prevention of leaching.

  • UEYAMA Yoshiaki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of hazardous trace elements by biodesulfurization and the mode of occurrence of those elements  

    2011.10  The Japan Institute of Energy

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    For three kinds of high-sulfur coals, the biodesulfurization by use of Thiobacillus ferrooxidans was conducted, and the removal of inorganic sulfur as well as that of hazardous trace elements were examined. For As and Se, the removal of trace elements had a correlation with that of inorganic sulfur. However, for Hg, such a correlation was not observed. A subsequent extraction method was performed to clarify the mode of occurrence of trace elements in coal. The removal behavior for trace elements, when the biodesulfurization is carried out, is discussed in terms of the mode of occurrence of these elements.

  • NAKAJIMA Tsunenori, KANDA Tomohide, FUKUDA Takashi, TAKANASHI Hirokazu, OHKI Akira   Measurement of organic matters dissolved into aqueous phase from coal and the investigation of ecological influence  

    2003.10  The Japan Institute of Energy

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    A model study was carried out for the elution behavior of organic matters in the waste water from coal piles. Organic matters were extracted from sample coals with hot water in the hot extraction process. When the extract temperature was increased, the concentration of organic matters increased in aqueous phase. The ecological influence of water-soluble organic matters from coal was investigated. The extracts of Loy yang coal have an endocrine activity. The same examination was investigated for the elution behavior of organic matters in the waste water from hydrothermal treatment process.

  • 山下浩幸, 隈部康誉, 前田昌彦, 中島常憲, 高梨啓和, 大木章   石炭から水相への微量重金属の溶出挙動  

    日本エネルギー学会第38回石炭科学会議  2001.11 

  • NAKAJIMA Tsunenori, YAMASHITA Hiroyuki, KANDA Tomohide, TAKANASHI Hirokazu, OHKI Akira   Analysis of inorganic compounds dissolved into aqueous phase from coal  

    2002.10  The Japan Institute of Energy

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    The leaching behavior of inorganic compounds from coal into aqueous phase containing various substances, such as acids, chelating agents, and surfactants was investigated. When a powdery SS001 coal was shaken with the 0.1M HNO_3, Ca, Mg, Mn, Fe, Cu, Pb, Zn were leached out. In some elements, such as Ca, Cu, Fe and S, there was the good agreement with inorganic element contents in 12 kinds of coal and leaching of elements into aqueous phase.

  • 前田昌彦, 中島常憲, 山下浩幸, 岩下 章, 大木 章   石炭からの有害重金属のリーチング除去  

    日本化学会中国四国・同九州支部合同大会  2000.10 

  • 大木 章, 前田 昌彦, 山下 浩幸, 岩下 章, 中島 常憲   石炭およびフライアッシュ中の有害重金属の分析と水溶性キレート剤による除去  

    第37回石炭科学会議  2000.9 

  • NAKAJIMA Tsunenori, KAWANO Yuji, KODAMA Yoshinobu, TAKANASHI Hirokazu, OHKI Akira   Elution behavior of metal ions in coal-water slurry  

    2001.11  The Japan Institute of Energy

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    Mineral matters in coal cause some troubles such as slagging, fouling, and sintering during gasification and combustion. The elution behavior of metal ions in aqueous phase of coal-water mixture (CWM) was determined by use of ICP-AES. In the case of model CWM, alkaline earth metal such as Ca, Mg, and some trace metals such as Mn, Zn, was eluted in the aqueous phase. The amount of elution metal ions was increased when we measured in the CWM prepared by oxidized coals.

  • HIGASHI Kensho, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   The evaluation of coal-water slurry by amount of bound water  

    2001.11  The Japan Institute of Energy

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    Different rank coals were analyzed by differential scanning calorimetry (DSC). On the basis of its congelation characteristics, the water sorbed in coal was classified into three types: free water, bound water and nonfreezable water. The amount of bound water was different depending on the kinds of coals. In this study, a clear relationship between the amount of bound water and maximum coal concentration for CWM was found.

  • OUCHIDA Yuichi, NAKAJIMA Tsunenori, OHKI Akira, MAEDA Shigeru   Influence of Weathering on Slurriability of Coal-Water Mixture (CWM)  

    1997.10  The Japan Institute of Energy

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    Weathering of coal is a quality change phenomenon by slow oxidation under the influence of air and water. When coals were oxidized in an electric oven at 60-150℃, the content of carbonyl group increased; while that of hydroxyl group increased up to 60-100℃ and then decreased. When CWM was prepared from the oxidized coals, the CWM viscosity increased as the oxidation temperature was raised. When oxidized coals were used for CWM, low pH and the elution of metal ions were observed.

  • TAKANASHI Hirokazu, KUBO Ryouji, NAKAJIMA Tsunenori, OHKI Akira, KAI Takami, MARUYAMA Morito, IBA Makoto, FUNAKAWA Tomoya   Purification of Crude Biodiesel Fuel by AC-DC Fields  

    Annual Conference of The Japan Institute of Energy  2011.8  The Japan Institute of Energy

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    An emulsification/demulsification technique was applied to purify crude Bio-Diesel Fuel (BDF) for the purpose of reducing amounts of water needed. The emulsifications were achieved by adding a small amount of water to crude BDF. The added water was emulsified with ease because of existence of sodium soaps in crude BDF. The soaps are considered to be produced through chemical reactions between sodium catalyst and free fatty acids. The demulsification was achieved by applying AC-DC voltage to the emulsions. The amount of water needed to purify crude BDF was studied based on distribution coefficients of impurities. Alkali metals, glycerol, methanol and water were removed simultaneously from the emulsion by the demulsification. By microscopic observations, it was confirmed that the droplets formed by the emulsification were removed by the demulsification. The demulsified samples were heated in order to evaporate water. The obtained samples could meet the bio-diesel fuel standards, EN14214 and JIS K 2390, in terms of the impurities. By applying the emulsification/demulsification technique, the amount of water could be reduced less than 2.1 volumetric % of general crude BDF.

  • 前田 滋, 大木 章, 中島常憲   環境中のアンチモンの挙動と影響解析  

    環境科学会1997年会  1997.9 

  • 中村 綾, 徐 炎華, 中島常憲, 高梨啓和, 大木 章, 前田 滋   燃焼灰からのヒ素等有害元素のリーチング挙動  

    第10回ヒ素シンポジウム  2001.11 

  • 長谷川博之, 河井晴恵, 中島常憲, 高梨啓和, 大木章   淡水産生物を用いる重金属の生態影響試験における錯形成反応の影響  

    第43回日本水環境学会年会  2009.3 

  • 田中亜希子, 高梨啓和, 中島常憲, 大木章   活性アルミナ系吸着剤による地下水からの低濃度ヒ素の吸着除去  

    第37回日本水環境学会年会  2003.3 

  • 高梨啓和, 新福桂子, 中島常憲, 大木章   水道水の安全性確保に向けた農薬等の変異原性物質生成能の測定  

    第38回日本水環境学会年会  2004.3 

  • NAKAJIMA Tsunenori, OHKI Akira, OUCHIDA Yuichi, UMIHIRA Yasushi, MORIMATSU Koichiro, XIE Xiao-Feng, MAEDA Shigeru   Change of Properties for Hydrothermally-Treated Low-Rank Coals and Slurriability of Coal-Water Mixture  

    1998.11  The Japan Institute of Energy

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    An Australian low rank coal (Loy Yang coal) was upgraded by hydrothermally-treated process at 150-350℃. The change of surface properties in treated coal was examined. The hygroscopicity and content of carboxyl group remarkably decreased. The specific surface area of coal decreased as heat treatment temperature (HTT) was raised. The slurriability of CWM, which prepared from treated coal, was much improved. The coal concentration of CWM, which has a viscosity of 1.0 Pa・s, was 34wt%/CWM; whereas that for the 350℃-treated coal was 59wt%/CWM, and the 350℃-treated coal CWM have good storage stability.

  • OHKI Akira, XIE Xiao-Feng, MORIMATSU Koichiro, NAKAJIMA Tsunenori, MAEDA Shigeru   Analysis of Low-Rank Coals Upgraded by Hydrothermal Process by Use of Several Methods Including FTIR  

    Proceedings of Conference on Coal Science  1998.11  The Japan Institute of Energy

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    Several low-rank coals were hydrothermally treated at 200-350℃ in an autoclave. The raw coal and treated coals were analyzed by FTIR with a curve-fitting method. The aromaticity and methyl/methylene ratio somewhat increased due to the treatment, while the content of carboxyl group greatly decreased. Also, thermal properties of the treated coals were examined by use of TG-DTA.

  • XIE Xiao-Feng, OHKI Akira, NAKAJIMA Tsunenori, MAEDA Shigeru   Change in Surface Properties for Hydrothermally-Treated Low-Rank Coals and Effect of Upgrading Agents  

    1997.10  The Japan Institute of Energy

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    Properties of low-rank coals when the coal was hydrothermally-treated at 150-350℃ were examined with particular emphasis on the surface properties. The analysis of coal properties includes, hygroscopicity, the contents of carboxyl group and phenolic hydroxyl group, specific surface area, atomic force microscope (AMF) imaging, and maceral composition. The content of carboxyl group greatly decreased as heat-treatment temperature (HTT) was raised; whereas decrease in the content of hydroxyl group was rather small. When the hydrothermal treatment was performed in the presence of an upgrading agent, such as tall oil, the hygroscopicity of 200℃ treated coal was comparable to that for a coal treated at 300℃ without the agent.

  • 大葉佐代子, 橋本扶美, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   殺虫剤環境変化体の合成と環境モニタリング  

    第51回日本水環境学会年会  2017.3 

  • 岸田美紗子, 加藤雄介, 高梨啓和, 中島常憲, 大木章   殺虫剤フェニトロチオンの塩素処理副生成物およびその変異原性物質生成能(MFP)  

    環境科学会2010 年会  2010.9 

  • 橋本扶美, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   標準物質を入手できない農薬環境変化体の環境モニタリング  

    第51回日本水環境学会年会  2017.3 

  • 福﨑悠史郎, 藤木健司, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   標準物質の入手が困難な環境汚染物質の半定量分析  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 中島常憲, 杉安雅貴, 高梨啓和, 大木 章   桜島火山降灰中の無機元素の粒径別分析と溶出  

    第25回環境化学討論会  2016.6 

  • 杉安雅貴, 中島常憲, 大木 章, 高梨啓和   桜島火山降灰に含まれる微量成分の粒径別分析と溶出挙動  

    日本分析化学会第65年会  2016.9 

  • 山本健太郎, 根上武仁, 溝口直敏, 中島常憲, 島加奈子   桜島火山灰を活用した環境に優しい藻場基盤材の開発とその長期モニタリング  

    第50回地盤工学研究発表会  2015.9 

  • 山本健太郎, 大, 根上武仁, 中島常憲, 島佳奈子, 溝口直敏   桜島火山灰とリサイクルマテリアルを有効活用した低環境負荷藻場基盤材の開発とそのモニタリング  

    第11回地盤改良シンポジウム  2014.11 

  • 山本健太郎, 根上武仁, 中島常憲, 島佳奈子   桜島火山灰とリサイクルマテリアルを有効利用した藻場基盤材の開発とそのモニタリング  

    土木学会第50回環境工学研究フォーラム  2013.11 

  • 山本健太郎, 大, 根上武仁, 矢野裕明, 蓬原康志, 島佳奈子, 中島常憲   桜島火山灰とリサイクルマテリアルの有効利用-低環境負荷型藻場基盤材の開発-  

    第10回環境地盤工学シンポジウム  2013.9 

  • 有島由紀子, 橋本扶美, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   未知環境変化体(PTPWs)の構造推定と半定量分析:ネオニコチノイド系殺虫剤dinotefuranを例として  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 野邊詩緒里, 一宮利恵, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   有機リン系殺虫剤フェニトロチオン光照射サンプルからの未知生成物の分離  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 前田 滋, 大木 章, 中島常憲   有機ヒ素化合物の水熱分解とヒ素の資源化  

    環境科学会1998年会  1998.9 

  • UMIHIRA Yasushi, OUCHIDA Yuichi, TAKEYAMA Tomohiro, NAKAJIMA Tsunenori, OHKI Akira, MAEDA Shigeru   Preparation of CWM from Upgraded Low-Rank Coals  

    1999.10  The Japan Institute of Energy

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    Several Australian low rank coal were upgraded by hydrothermal treatment process at 200℃-300℃. As the heat-treatment temperature (HTT) was raised, the slurriability of CWM which was prepared from treated coal was improved dramatically. By the DSC measurement, the amount of bound water in CWM decreased with increasing of HTT. From these results, we found that the amount of the bound water was in good agreement with the slurriability of CWM.

  • 大木 章, 宮廻 寛, 中島常憲, 高梨啓和   廃棄物焼却飛灰から酢酸緩衝液への重金属溶出挙動  

    第14回廃棄物学会研究発表会  2003.10 

  • 松元愛子, 平野敬仁, 高梨啓和, 中島常憲, 大木 章   屋久島における廃棄物中の有害元素分析  

    環境科学会2003年会  2003.9 

  • 浜 知広, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 松下 拓, 亀屋隆志   多変量解析を用いたtrans-1,3-ジクロロプロペン塩素処理物中の変異原性物質の探索  

    第50回日本水環境学会年会  2016.3 

  • 浜 知広, 一宮利恵, 高梨啓和, 中島常憲, 大木 章, 上田岳彦   多変量解析による3-methyl-4-nitrophenol塩素処理物中の変異原の網羅的探索  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 浜 知広, 一宮利恵, 高梨啓和, 中島常憲, 大木 章, 上田岳彦   多変量解析による3-methyl-4-nitrophenol塩素処理物中の変異原の探索  

    第49回日本水環境学会年会  2015.3 

  • 久保喜信, 甲斐敬美, 中里勉, 高梨啓和, 木下英二   バイオディーゼル油に含まれるエステル二量体が粘度に及ぼす影響  

    化学工学会第76年会(現地開催中止)  2011.3 

  • Fumi HASHIMOTO, Ryusuke KITANOSONO, Yukiko ARISHIMA, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Jun-ichi KADOKAWA, Hidenori ISHIKAWA, Nobukazu MIYAMOTO   Occurrence of Dinotefuran and Its Transformation Products in River Waters  

    Water and Environment Technology Conference 2016  2016.8 

  • Shutatsu TERADA, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Atsushi SAWAI, Nobukazu MIYAMOTO, Takashi KAMEYA   Non-targeted screening of ecotoxicants in sewage water with liquid chromatography/high resolution mass spectrometry  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Misako Kishida, Hirokazu Takanashi, Yoshiro Hidaka, Hiroki Kofune, Kenji Ohyama, Tsunenori Nakajima, Akira Ohki   Mutagenicity of chlorinated agricultural chemicals  

    The 16th Korea-Japan Symposium on Water Environment  2007.10 

  • H. Takanashi, K. Shimpuku, M. Kosaka, H. Kajiya, K. Ohyama,T, Nakajima,A. Ohki   Mutagenicity of biodegraded and chlorinated derivatives of agricultural chemicals  

    the 1st IWA-Aspire Conference & Exhibition  2005.7 

  • Misako Kishida, Takeo Kumabe, Hirokazu Takanashi, Tsunenori Nakajima, Akira Ohki, Yuichi Miyake, Takashi Kameya   Mutagen in Fenitrothion Chlorinated  

    The 3rd Asia Pacific Regional Conference and Exhibition  2009.10 

  • H. Takanashi, K. Shimpuku, M. Kosaka, H. Kajiya, K. Ohyama,T, Nakajima,A. Ohki   Mutagen formation potential (MFP) of agricultural chemicals and their biodegraded derivatives  

    the 12th international symposium on toxicity assessment  2005.6 

  • Misako Kishida, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Mutagen formation potential (MFP) of agricultural chemicals  

    The 13th International Symposium on Toxicity Assessment  2007.8 

  • Hirokazu Takanashi, Misako Kishida, Kenji Ohyama, Tsunenori Nakajima, Akira Ohki   Mutagen formation from biodegraded agricultural chemicals by chlorination  

    The 2nd IWA-ASPIRE Conference & Exhibition  2007.10 

  • 橋本扶美, 大土橋真希, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一   MSn分析とイオン移動度分析の組み合わせによる農薬未知環境変化体の構造推定  

    第52回日本水環境学会年会  2018.3 

  • Akira Ohki, Misa Taira, Shota Hirakawa, Tsunenori Nakajima, Hirokazu Takanashi   Mercury Contents in Various Low-Sulfur Bituminous Coals from Different Countries: Relationship to Coal Properties  

    31st Annual International Pittsburgh Coal Conference (PCC 2014)  2014.10 

  • Akira OHKI, Hiroyuki YAMASHITA, Akira IWASHITA, Tsunenori NAKAJIMA, Hirokazu TAKANASHI   Leaching of Various Elements from Coal into Aqueous Phases Containing Acids and Chelating Agents  

    8th Japan-China Symposium on Coal and C1 Chemistry  2003.12 

  • Takuya Furuzono, Tsunenori Nakajima, Hiroki Fujishima, Mana Takemoto, Hirokazu Takanashi, Akira Ohki   Leaching of Selenium and Other Trace Elements from Various Coal Fly Ashes and Effect of Aging  

    Water and Environment Technology Conference 2017  2017.7 

  • T. Nakajima, T. Fukuda, H. Takanashi, A. Ohki   Leaching of organic matters from coal into aqueous media and their ecotoxicities  

    21st Annual International Pittsburgh Coal Conference (PCC 2004)  2004.9 

  • Akira IWASHITA, Yuka SAKAGUCHI, Tsunenori NAKAJIMA, Hirokazu TAKANASHI, Akira OHKI, Shinji KAMBARA   Leaching Behavior of Boron and Selenium from Coal fly ash  

    12th International Conference on Coal Science (ICCS 2003)  2003.11 

  • 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   LC-HRMSと多変量解析の組み合わせによる水道水中の生ぐさ臭原因物質の探索および構造推定  

    第22回日本水環境学会シンポジウム  2019.9 

  • 新福優太, 高梨啓和, 中島常憲, 秋葉道宏   LC-HRMSおよびGC-O-HRMSによる水道水生ぐさ臭原因物質の探索  

    第53回日本水環境学会年会  2019.3 

  • Exploration of a causative compound of fishy smell in raw waters by combining LC-HRMS and GC-O-HRMS with multivariate analyses  

    2019.5 

  • Akira Ohki, Kousei Haraguchi, Misa Taira, Tsunenori Nakajima, Hirokazu Takanashi   Influence of Particle Size of Coal on the Determination of Mercury and Other Trace Elements in Coal  

    2013 International Conference on Coal Science and Technology (ICCS&T 2013)  2013.10 

  • NAKAJIMA Tsunenori, XIE Xiao-Feng, OUCHIDA Yuichi, OHKI Akira, MAEDA Shigeru   Preparation of Coal-Water Mixture (CWM) from Coals Treated by Hot Water Drying (HWD)  

    Proceedings of Conference on Coal Science  1997.10  The Japan Institute of Energy

     More details

    Three low-rank coals were hydrothermally-treated at 150-350℃ in an autoclave. The hygroscopicity of these treated coals became smaller as the heat-treatment temperature (HTT) was raised. From FT-IR analysis, the content of carbonyl group greatly decreased, while that of aliphatic hydrocarbon slightly increased. The slurriability of CWM which prepared from HWD-treated coal was much improved. The coal concentration of CWM, which has a viscosity of 1.0 Pa・s, for Loy Yang coal was 30wt%/CWM; whereas that for the 300℃-treated coal was 50wt%/CWM.

  • 小峯理恵子, 中島常憲, 高梨啓和, 大木章   HPLC法と超低温捕集法を用いる水環境中のヒ素スペシエーション  

    第42回日本水環境学会年会  2008.3 

  • 小峯理恵子, 中島常憲, 高梨啓和, 大木 章   HPLC法と超低温捕集法を用いる水環境中のヒ素スペシエーション  

    第43回日本水環境学会年会  2009.3 

  • 大迫譲滋, 古園拓也, 中島常憲, 高梨啓和, 大木 章   HPLC法と抽出法を用いる魚類中の水銀およびセレンのスペシエーション  

    日本分析化学会第60年会  2011.9 

  • 小峯理恵子, 永井拓志, 下山巧太, 中島常憲, 高梨啓和, 大木章   HPLCと原子蛍光分析を用いる生物試料中のヒ素および水銀のスペシエーション  

    日本分析化学会第57年会  2008.9 

  • 太田聖治, 中村明美, 中島常憲, 高梨啓和, 大木章   HPLC-水素化物発生原子蛍光分析による生体試料中のヒ素スペシエーション  

    日本分析化学会第54年会  2005.9 

  • 森松恒一郎, 謝 暁峰, 神庭 元, 中島常憲, 大木 章, 前田 滋   Hot Water Drying法による改質炭の表面キャラクタリゼーション  

    日本化学会第73秋季年会  1997.9 

  • 神庭 元, 大木 章, 謝 暁峰, 森松恒一郎, 中島常憲, 前田 滋   Hot water drying 法による改質炭の表面特性  

    日本化学会第72春季年会  1997.3 

  • H. Takanashi, A. Matsumoto,T, Hirano,T, Nakajima,A. Ohki, S. Fujita   Hazardous substances in leachate from char made from residue of dry methane fermentation of Yakushima biomass  

    2nd World Biomass Conference  2004.5 

  • 坂元 裕一, 山下 浩幸, 中島 常憲, 大木 章   FTIRを用いる石炭化学構造の分析  

    第37回石炭科学会議  2000.9 

  • 福岡香織, 梨啓和, 中島常憲, 大木章   FISH法を用いたThiobacillus denitrificansの計数  

    第39回日本水環境学会年会  2005.3 

  • 岸田美紗子, 中島常憲, 高梨啓和, 大木章   Fenitrothion分解生成物の調査とその変異原性物質生成能(MFP)  

    第43回日本水環境学会年会  2009.3 

  • 岸田美紗子, 隈部丈雄, 高梨啓和, 中島常憲, 大木章, 三宅祐一, 亀屋隆志   Fenitrothion分解生成物の調査とその変異原性物質生成能(MFP)  

    第42回日本水環境学会年会  2008.3 

  • 岸田美紗子, 日高芳朗, 高梨啓和, 中島常憲, 大木章   Fenitrothionの変異原性物質生成能(MFP)  

    第41回日本水環境学会年会  2007.3 

  • Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Akira Ohki, Masaki Sagehashi, Michihiro Akiba   Exploring a Fishy-Smelling Substance in Raw Waters for Water Supply with High Resolution Mass Spectrometry and Multivariate Analysis  

    Water and Environment Technology Conference 2017  2017.7 

  • Yuta Shinfuku, Hirokazu TAKANASHI, Tsunenori Nakajima, Akira Ohki, Masaki Sagehashi, Michihiro Akiba   Exploring a Fishy-Smelling Substance in Raw Waters for Water Supply by Combining High Resolution Mass Spectrometry with Multivariate Analysis  

    3rd THU-Kagoshima Environmental Forum  2017.12 

  • Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Akira Ohki, Masaki Sagehashi, Michihiro Akiba   Exploring a fishy-smelling compound in raw waters with high resolution mass spectrometry and multivariate analysis  

    26th Symposium on Environmental Chemistry  2017.6 

  • Yuta SHINFUKU, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akio OGURA, Hiroaki KITAMURA, Michihiro AKIBA   Exploration of an Odorous Metabolite of Uroglena americana Using High Resolution Mass Spectrometry, GC-Olfactometry, and Multivariate Analysis  

    The 12th CESE Conference, Kaohsiung, Taiwan  2019.11 

  • Y.Shinfuku, H.Takanashi, T.Nakajima, M.Sagehahsi, M.Akiba   Exploration of a Fishy-Smelling Substance in Raw Waters by Combining High-Resolution Mass Spectrometry with Multivariate Analysis  

    2018.5 

  • Yuta SHINFUKU, Hirokazu TAKANASHI, Tsunenori NAKAJIMA,Michihiro AKIBA   Exploration of a Causative Substance of Fishy-Smell in Raw Water for Taps by Combining a LC-HRMS, a GC-O-HRMS, and Multivariate Analyses  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Yuta SHINFUKU, Hirokazu TAKANASHI, Tsunenori NAKAJIMA,Michihiro AKIBA   Exploration of a Causative Substance of Fishy-Smell in Raw Water for Taps by Combining a LC-HRMS, a GC-O-HRMS, and Multivariate Analyses  

    Water and Environment Technology Conference 2019  2019.7 

  • Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Michihiro Akiba   Exploration of a causative compound of fishy-smell in raw water for taps by combining a LC-HRMS, a GC-O-HRMS and multivariate analyses  

    28th Symposium on Environmental Chemistry  2019.6 

  • Tomohiro NAKAMURA, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Takehiko UEDA   Estimation of the Momentum Transfer Cross Section of Dinotefuran in Traveling Wave Ion Mobility Spectrometry (TWIMS)  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers―New Developments for management of water environment in Asia―  2019.10 

  • Tsunenori NAKAJIMA, Yuki MINAMI, Aya NISHIMURA, Hirokazu TAKANASHI, Akira OHKI   Effect of the presence of chelators on the uptake and toxicity of mercury and other metals to Daphnia magna  

    Water and Environment Technology Conference 2013  2013.6 

  • Tsunenori Nakajima, Kosei Haraguchi, Misa Taira, Hirokazu Takanashi, Akira Ohki   Effect of Pretreatment Conditions on the Determination of Trace Elements in Coal by Use of Atomic Spectroscopy  

    31st Annual International Pittsburgh Coal Conference (PCC 2014)  2014.10 

  • Tsunenori Nakajima, Hiroyuki Hasegawa, Yuki Murata, Tsuyoshi Kawahara, Hirokazu Takanashi, Akira Ohki   Effect of chelators and coexisting anions on the acute toxicity of some heavy metals to Daphnia magna  

    The 13th International Symposium on Toxicity Assessment  2007.8 

  • Tsunenori NAKAJIMA, Harue KAWAI, Yuki MURATA, Asumi MATSUO, Hirokazu TAKANASHI, Akira OHKI   Effect of Chelator on the Acute Toxicity of Some Heavy Metals to Freshwater Organisms  

    The 4th IWA-ASPIRE Conference & Exhibition  2011.10 

  • A. Ohki, T. Nakajima, M. Tsurugasaki, K. Naka, S. Maeda   Effect of additive amount and its adsorption upon properties of coal-water mixture (CWM)  

    5th China-Japan Symposium on Coal and C1 Chemistry  1996.5 

  • Hiroyuki Hasegawa, Ken Kuzumaki, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Ecotoxicological evaluation of effluents from coal handling processes to freshwater organisms  

    The 13th International Symposium on Toxicity Assessment  2007.8 

  • Tsunenori Nakajima, Hiroyuki Hasegawa, Hirokazu Takanashi, Akira Ohki   Ecotoxicity of effluents from low-rank coal handling processes and its reduction  

    the 10th Japan-China Symposium on Coal and C1 Chemistry  2009.7 

  • 新福優太, 高梨啓和, 中島常憲, 大木章, 下ヶ橋雅樹, 秋葉道宏   DNPH誘導体化アルデヒドをLC/MSで測定する際の妨害物質の除去  

    第52回日本水環境学会年会  2018.3 

  • 新福優太, 高梨啓和, 中島常憲, 大木章, 下ヶ橋雅樹, 秋葉道宏   DNPH誘導体化における測定妨害物質の除去を目的とした固相抽出の適用  

    第17回日本水環境学会シンポジウム  2017.9 

  • A. Iwashita, T. Nakajima, H. Takanashi, A. Ohki, Y. Fujita, T. Yamashita   Determination of some trace elements in coal and fly ash by hydride-generation atomic absorption spectrometry  

    International Conference on Coal Science and Technology 2005, (ICCS&T 2005)  2005.10 

  • W.H. Geng, H. Maemura, T, Nakajima, H. Takanashi, A. Ohki   Determination of mercury and fluorine in coal by use of oxygen flask combustion method  

    International Conference on Coal Science and Technology 2005, (ICCS&T 2005)  2005.10 

  • A. Iwashita, T. Nakajima, H. Takanashi, A. Ohki, Y. Fujita, T. Yamashita   Determination of major and trace elements in coal fly ash by microwave-assisted acid-digestion and ICP-AES analysis  

    21st Annual International Pittsburgh Coal Conference (PCC 2004)  2004.9 

  • 大内田裕一, 大木 章, 中島常憲, 前田 滋   CWMにおける石炭酸化の影響  

    第8回エネルギー工学研究会  1997.5 

  • A. Ohki, X.-F. Xie, T. Nakajima, S. Maeda   Coal properties of upgraded low-rank coals by hot water drying method  

    9th International Conference on Coal Science (ICCS 1997)  1997.9 

  • X.-F. Xie, A. Ohki, T. Nakajima, S. Maeda   Chemical structure and thermal properties of low-rank coals upgraded by hydrothermal process  

    6th Japan-China Symposium on Coal and C1 Chemistry  1998.10 

  • Ohki, Akira, Xie, X F, Nakajima, Tsunenori, Maeda, Shigeru   Chemical structure and properties of low-rank coals treated by hydrothermal process  

    15th Annual International Pittsburgh Coal Conference (PCC 1998)  1998.9 

  • A. Ohki, T, Nakajima, T. Fukuda, S. Nakamata, H. Takanashi   Characterization of wastewater from coal handling processes in terms of environmental impacts  

    the 1st IWA-Aspire Conference & Exhibition  2005.7 

  • A. Ohki, X.-F. Xie, T. Nakajima, T. Itahara, S. Maeda   Change in chemical structure and properties of low-rank coals during hydrothermal process  

    International Symposium on Upgrading and Slurrification of Low Rank Coals  1998.9 

  • Hiroki Idehara, Shogo Okada, Tsunenori Nakajima, Hirokazu Takanashi, Akira Ohki   Biodesulfurization of coal by an iron-oxidizing bacterium and removal of trace elements  

    The 10th Japan-China Symposium on Coal and C1 Chemistry  2009.7 

  • A. Ohki, S. Okada, T, Nakajima,H. Takanash   Biodesulfurization of coal and removal of trace elements  

    the 9th China-Japan Symposium on Coal and C1 Chemistry  2006.10 

  • T. Nakajima, S. Nakamata, H. Takanashi, A. Ohki   Bioassays for environmental impacts of water-soluble matters eluted from coal  

    International Conference on Coal Science and Technology 2005, (ICCS&T 2005)  2005.10 

  • Kouki KIRIHARA, Sayoko OBA, Masaki OTSUCHIHASHI, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Takehiko UEDA, Jun-ichi KADOKAWA, Hidenori ISHIKAWA, Nobukazu MIYAMOTO   Binding Affinity Evaluations of Monohydroxydinotefuran and Its Isomers to an Acetylcholine Receptor  

    The 1st Japan-Korea Joint Symposium on Water Environment for Young Researchers  2019.10 

  • Akira Ohki, Tsunenori Nakajima, Hirokazu TAKANASHI   Analysis of trace hazardous elements in flue gas desulfurization water and the removal of these elements from the water  

    28th Annual International Pittsburgh Coal Conference 2011, PCC 2011  2011.9 

     More details

    Several coals were tested in a pilot plant of coal combustion facility, and a slurry supernatant water from the wet flue gas desulfurization (FGD) system was obtained. The determination of trace elements in those FGD water samples was done by ICP-AES, ICP-MS, and other methods, while the analysis of major cations and anions was conducted by ICP-AES and ion chromatography, respectively. The levels of B, Se, and Hg in the FGD water samples sometimes exceeded the Japanese national effluent standards for terrestrial water (10, 0.1, and 0.005 mg/L for B, Se, and Hg, respectively). When oxy-fuel combustion was carried out by use of the same combustion facility, the concentrations of trace elements in the FGD water samples tended to be lower than those for the normal combustion. The removal of these hazardous trace elements was attempted by adsoption method and phocatalytic reduction method.

  • Tsunenori Nakajima, Takushi Nagai, Joji Osako, Hirokazu Takanashi, Akira Ohki   Analysis of mercury in coal, biomass, and waste material samples  

    The Second International Symposium on Gasification and Its Application  2010.12 

  • A. Ohki, X.-F. Xie, G. Kanba, K. Morimatsu, T. Nakajima, S. Maeda   Analysis of hydrothermally-upgraded coals by FT-IR and XPS  

    6th Japan-China Symposium on Coal and C1 Chemistry  1998.10 

  • Hiroki FUJISHIMA, Tsunenori NAKAJIMA, Hirokazu TAKANASHI, Akira OHKI   Analysis of hazardous trace elements in particulate matters from coal combustion systems  

    Joint symposium of JTBW2016 and KNJS2016  2016.10 

  • Masaki Sugiyasu, Tsunenori NAKAJIMA, Hirokazu TAKANASHI, Akira OHKI   Analysis of hazardous matters contained in volcanic ashes collected in Kagoshima City near Mt. Sakurajima, Japan  

    Joint symposium of JTBW2016 and KNJS2016  2016.10 

  • A. Ohki, Y. Sakaguchi, T. Nakajima, H. Takanashi   Analysis of arsenic, boron, and some other elements in coal fly ash by X-ray photoelectron spectroscopy  

    21st Annual International Pittsburgh Coal Conference (PCC 2004)  2004.9 

  • Akira Ohki, Masato Tsurugasaki, Tsunenori Nakajima, Kensuke Naka, Shigeru Maeda   Adsorption Behavior of Polyanion Additives and Coal-Water Mixture Properties  

    20th Intern. Conf. on Coal Utilization and Fuel Systems  1995.3 

  • Hirokazu TAKANASHI, Kazuya ABIRU, Misako KISHIDA, Tsunenori NAKAJIMA, Akira OHKI   Accurate Mass Analyses of Chlorination By-Products of Organophosphorus Pesticide Fenitrothion  

    The 4th IWA-ASPIRE Conference & Exhibition  2011.10 

  • Fumi HASHIMOTO, Hirokazu TAKANASHI, Tsunenori NAKAJIMA, Akira OHKI, Takehiko UEDA, Jun-ichi KADOKAWA, Hidenori ISHIKAWA, Nobukazu MIYAMOTO   A technique for detecting trace transformation products in water environments without authentic standard compounds  

    The 25th Japa-Korea Symposium on Water Environment  2016.10 

  • 一宮利恵, 糸満桃子, 野邊詩緒里, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   3-methyl-4-nitrophenol 塩素処理副生成物の探索と2,6-dichloro-3-methyl-4-nitrophenol の同定  

    平成26年度日本水環境学会九州沖縄支部研究発表会  2015.2 

  • 谷口遙菜, 林 健太郎, 加藤政和, 中島常憲, 高梨啓和, 大木 章   鹿児島市における桜島火山降灰の調査と成分分析  

    第23回環境科学討論会  2014.5 

  • 大迫譲滋, 原口幸征, 中島常憲, 高梨啓和, 大木章   魚肉中に含まれる水銀およびセレンの存在形態解明と発酵過程における運命追跡  

    第20回環境化学討論会  2011.7 

  • 吉田 哲郎, 高梨 啓和, 中島 常憲, 大木 章, 甲斐 敬美, 丸山 守人, 伊庭 誠, 舟川 知也   高電圧印加場を用いたバイオディーゼル燃料精製技術の開発  

    第75年化学工学会年会  2010.3  公益社団法人 化学工学会

  • 平野 敬仁, 高梨 啓和, 中島 常憲, 大木 章   高電圧印加処理を用いたバイオディーゼル燃料の精製  

    化学工学会第70年会  2005.3  公益社団法人 化学工学会

  • 吉田哲郎, 高梨啓和, 中島常憲, 大木 章, 甲斐 敬美, 丸山守人, 伊庭 誠, 舟川知也   高電圧印加処理による粗製バイオディーゼル燃料の精製  

    化学工学会第41回秋季大会  2009.9  公益社団法人 化学工学会

  • 吉田 哲郎, 高梨 啓和, 緒方 秀樹, 大山 謙二, 中島 常憲, 大木 章   高電圧印加処理によるバイオディーゼル燃料中からの不純物除去  

    化学工学会第40回秋季大会  2008.9  公益社団法人 化学工学会

  • 新福優太, 高梨啓和, 中島常憲, 大木 章, 下ヶ橋雅樹, 秋葉道宏   高分解能質量分析計と多変量解析による水道水生ぐさ臭原因物質の探索  

    環境科学会 2017 年会  2017.9 

  • 高梨啓和, 有島由紀子, 橋本扶美, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 宮本信一, 石川英律   高分解能・高質量精度LC/MSを用いた農薬の環境変化体 (PTPWs)の探索  

    第17回日本水環境学会シンポジウム  2014.9 

  • Hashimoto Fumi   Search of the unknown substance in environmental using a high-resolution and high mass accuracy LC / MS  

    Annual Conference of Japan Society of Material Cycles and Waste Management  2015.9  Japan Society of Material Cycles and Waste Management

  • 橋本扶美, 高梨啓和, 中島常憲, 大木章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   高分解能・高質量精度LC/MSと高感度LC/MS/MSを用いた標準物質を入手できない農薬環境変化体の環境モニタリング  

    質量分析総合討論会  2017.5 

  • 新福優太, 高梨啓和, 中島常憲, 大木 章, 下ヶ橋正樹, 秋葉道宏   高分解能MSと多変量解析による水道原水生ぐさ臭原因物質の探索  

    第51回日本水環境学会年会  2017.3 

  • 寺田修達, 田中孝昌, 高梨啓和, 中島常憲, 澤井 淳, 宮本信一, 亀屋隆志   高分解能LC/MSと多変量解析による下水中の生態毒性物質の探索  

    第53回日本水環境学会年会  2019.3 

  • 高梨啓和, 橋本扶美, 北ノ園龍介, 有島由紀子, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   高分解能LC/MSとLC/MS/MSを用いた実環境試料からの未知農薬変化体の検出  

    日本質量分析学会第64回質量分析総合討論会  2016.5 

  • 高梨啓和, 阿比留和也, 浜 知広, 中島常憲, 大木 章, 上田岳彦, 近藤貴志, 松下 拓, 亀屋隆志   高分解能LC-MSおよび多変量解析を用いた土壌燻蒸剤DD塩素処理物中の未知変異原性物質の同定  

    日本質量分析学会第64回質量分析総合討論会  2016.5 

  • 高梨啓和, 中島常憲, 大木 章, 上田岳彦   高分解能LC-MS、LC-IMS-MSおよび多変量解析を用いた未知環境汚染物質の探索  

    日本質量分析学会第64回質量分析総合討論会  2016.5 

  • 平川 翔太, 中島 常憲, 高梨 啓和, 大木 章   食品試料中の微量セレン分析における亜臨界水処理の回収法としての適用  

    日本分析化学会第64年会  2015.9  (公社)日本分析化学会

  • 山田健太, 冨永剛弘, 中島常憲, 高梨啓和, 大木章   難除去性ヒ素およびセレン化合物除去への光触媒反応の利用  

    H20年度日本水環境学会九州支部研究発表会講演要旨集  2009.3 

  • 河井晴恵, 松尾あすみ, 中島常憲, 高梨啓和, 大木章   重金属の生態影響試験における錯形成反応の影響  

    第44回日本水環境学会年会  2010.3 

  • 古園拓也, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼法等を用いる生物試料中に含まれるヒ素の簡易分析  

    第44回日本水環境学会年会  2010.3 

  • 耿文華, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼法を用いる石炭中のフッ素濃度測定  

    日本分析化学会第55年会  2006.9 

  • GENG Wenhua, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Utilization of oxygen flask combustion method for the determination of mercury in coal and ash  

    2007.10  The Japan Institute of Energy

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    A simple and precise method was developed for the determination of mercury (Hg) in coal, coal fly ash (CFA), waste incineration ash (WIA), and soil by use of oxygen flask combustion (OFC) followed by cold vapor atomic fluorescence spectrometry (CVAFS). A KMnO_4 solution was used as an absorbent, and a bag oblate was used as a wrapping material in the OFC method. The Hg-free graphite, which had been prepared by use of a mild pyrolysis procedure at 500℃, was used as the combustion agent, and the determination of Hg in ash and soil was successfully carried out. For twelve certified reference materials (six coals, three CFA samples, and three soil samples), the Hg contents obtained by this method were in good accordance with the certified or reference values. In addition, real samples including nine brands of Japanese standard coals (SS coals), nine CFAs collected from some coal-fired power plants, five WIAs collected from waste incineration plants, and two soils were analyzed by the present method, and the data were compared to those from the authentic microwave-acid digestion (MW-AD) method.

  • 島本英毅, 杉安雅貴, 中島常憲, 高梨啓和, 大木 章   酸素フラスコ燃焼法を前処理とする生物試料中のヒ素等有害元素分析  

    第24回ヒ素シンポジウム  2018.11 

  • 杉安 雅貴, 小濱 郁也, 中島 常憲, 高梨 啓和, 大木 章   酸素フラスコ燃焼法とCVAASを用いる食品試料の中の水銀分析  

    分析日本分析化学会第66年会  2017.9  (公社)日本分析化学会

  • 岩下章, 坂元裕一, 中島常憲, 高梨啓和, 大木章   酸素フラスコ燃焼法‐冷蒸気原子吸光分析による石炭および石炭灰中の水銀含有量測定  

    日本分析化学会第52年会  2003.9 

  • 橋本扶美, 大葉佐世子, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   農薬環境変化体の構造推定のための衝突断面積解析技術の開発  

    環境科学会 2017 年会  2017.9 

  • 高梨啓和, 大葉佐世子, 橋本扶美, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   農薬変化体の構造を推定するための衝突断面積測定方法の検討  

    第51回日本水環境学会年会  2017.3 

  • 浅岡哲朗, 加治屋仁, 小坂瑞樹, 新福桂子, 高梨啓和, 中島常憲, 大木章   農薬の変異原性物質生成能の評価方法  

    第40回日本水環境学会年会  2006.3 

  • 日高芳朗, 岸田美紗子, 高梨啓和, 中島常憲, 大木章   農薬の変異原性物質生成能(MFP)測定におけるpHの影響  

    第41回日本水環境学会年会  2007.3 

  • 高梨啓和, 浜 知広, 中島常憲, 大木 章, 上田岳彦, 松下 拓, 近藤貴志, 亀屋隆志   農薬およびその環境変化体の変異原性物質生成能における定量的構造活性相関解析  

    環境科学会 2017 年会  2017.9 

  • 古園拓也, 小峯理恵子, 中島常憲, 高梨啓和, 大木章   超低温捕集法とHPLC法を用いる海産物中のヒ素スペシエーション  

    日本分析化学会第58年会  2009.9 

  • 隈部丈雄, 岸田美紗子, 高梨啓和, 中島常憲, 大木 章   質量分析計を用いた農薬塩素処理副生成物の探索  

    第45回日本水環境学会年会  2011.3 

  • 高梨啓和, 隈部丈雄, 岸田美紗子, 中島常憲, 大木章   質量分析計による農薬塩素処理副生成物の探索  

    平成22年度日本水環境学会九州支部研究発表会  2011.3 

  • HASEGAWA Hiroyuki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Wastewater treatment in lignite handling process and the evaluation of environment impacts  

    2008.10  The Japan Institute of Energy

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    Two lignites and two sub-bituminous coals were treated by hot water extraction (HWE) and hydrothermal treatment (HTT), and the simulated effluents were obtained. When the organic matters contained in the simulated effluents were removed by coagulation, the optimum conditions, such as coagulant dose and pH, were investigated. TOC and molecular weight of organic matters dissolved in the simulated effluents were analyzed by TOC analyzer and size exclusion chromatography (SEC). Also, the environment impacts of these effluents were evaluated by the Ames mutagenicity test. The mutagenicity of chlorinated effluents was reduced after coagulation process by use of PAC treatment.

  • NAKAJIMA Tsunenori, HASEGAWA Hiroyuki, TAKANASHI Hirokazu, OHKI Akira   Environmental impact of wastewater from lignite handling processes and control  

    2007.10  The Japan Institute of Energy

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    Two lignites and two sub-bituminous coals were treated by hot water extraction (HWE) and hydrothermal treatment (HTT), and the simulated effluents were obtained. The ecotoxicological impacts of these effluents were evaluated by use of acute and chronic toxicity test against some freshwater organisms and Ames mutagenicity test. The effluents from the HWE and HTT did not show any notable mutagenicity. However, an appreciable degree of mutagenicity after chlorination was observed for these effluents. The effluents from HTT indicated a considerable acute and chronic toxicity for freshwater organisms. From the FTIR and GPC analysis of the organic matters eluted in the HWE and HTT effluent, it is found that the toxicity of HWE effluents is caused by the presence of high molecular weight aromatic compounds with hydrophilic substituents.

  • NAKAJIMA Tsunenori, KUZUMAKI Ken, NAKAMATA Satomi, TAKANASHI Hirokazu, OHKI Akira   Bioassays for environmental impacts of water-soluble matters eluted from lignite  

    2005.11  The Japan Institute of Energy

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    When several lignites were subjected to hot water extraction (HWE) and hydrothermal treatment (HTT), the leaching of organic matters from coal was evaluated by total organic carbon (TOC). The degree of TOC in the HTT eluent was greatly increased as the HTT temperature was raised from 200 to 350℃. The extracts obtained from the HWE and HTT eluents for LY lignite were assessed in terms of Ames Salmonella mutagenicity assay and acute toxicity test for D. magna and O. latipes. The extract from the HWE eluent (EX-HWE) did not show any notable mutagenicity. However, an appreciable degree of mutagenicity after chlorination was observed for the EX-HWE. The eluent from HTT indicated a considerable acute toxicity for D. magna and O. latipes.

  • NAKAJIMA Tsunenori, KUZUMAKI Ken, HASEGAWA Hiroyuki, TAKANASHI Hirokazu, OHKI Akira   Environmental impacts of wastewater from hydrothermal treatment of lignite and sub-bituminous coal  

    2006.10  The Japan Institute of Energy

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    When two lignites and a sub-bituminous coal were subjected to hydrothermal treatment (HTT), the leaching of organic matters from coal was evaluated by total organic carbon (TOC). The degree of TOC in the HTT eluent was greatly increased as the HTT temperature was raised. The HTT eluents from these low-rank coals were assessed in terms of Ames Salmonella mutagenicity assay and acute toxicity test for D. magna and O. latipes. The eluents from the HTT eluent did not show any notable mutagenicity. However, an appreciable degree of mutagenicity after chlorination was observed for the HTT eluents. The eluents from HTT indicated a considerable acute toxicity for D. magna and O. latipes.

  • 雲田美紀, 高梨啓和, 中島常憲, 大木章   製油所から発生するスイートニングプロセス廃水の処理  

    平成22年度日本水環境学会九州支部研究発表会  2011.3 

  • 高梨啓和, 玉島由美子, 有島由紀子, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   衝突断面積解析による未知環境汚染物質の構造推定  

    第50回日本水環境学会年会  2016.3 

  • 高梨啓和, 玉島由美子, 有島由紀子, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   衝突断面積測定による未知環境汚染物質の構造推定  

    平成27年度日本水環境学会九州沖縄支部研究発表  2016.2 

  • 高梨啓和, 橋本扶美, 中島常憲, 大木 章, 上田岳彦, 門川淳一, 石川英律, 宮本信一   衝突断面積に基づいた未知物質の構造推定  

    環境科学会2016年会  2016.9 

  • 高梨啓和, 宮崎菜月, 有島由紀子, 濱美紗希, 中島常憲, 大木 章, 上田岳彦, 近藤貴志, 亀屋隆志, 松下 拓   精密質量解析による農薬光照射サンプル中の未知変化体のスクリーニング  

    第48回日本水環境学会年会  2014.3 

  • 濱美紗希, 宮崎菜月, 高梨啓和, 中島常憲, 大木 章, 上田岳彦, 近藤貴志, 亀屋隆志, 松下 拓   精密質量解析および修飾反応解析によるフェニトロチオン変化体の探索  

    第48回日本水環境学会年会  2014.3 

  • 高梨啓和, 阿比留和也, 田中華子, 中島常憲, 大木 章, 近藤貴志, 亀屋隆志, 松下 拓   精密質量分析による農薬変化体の探索  

    第15回日本水環境学会シンポジウム  2012.9 

  • 阿比留和也, 田中華子, 高梨啓和, 中島常憲, 大木章, 松下拓, 近藤貴志, 亀屋隆志   精密質量分析による農薬塩素処理物中の変異原性物質の探索  

    第46回日本水環境学会年会  2012.3 

  • 高梨啓和, 有島由紀子, 濱美紗希, 中島常憲, 大木 章, 上田岳彦, 亀屋隆志, 近藤貴志, 松下 拓   精密質量分析による尿素系除草剤Diuronの未知フォトプロダクトの探索  

    環境科学会2014年会  2014.9 

  • 田中華子, 阿比留和也, 高梨啓和, 中島常憲, 大木 章, 近藤貴志, 亀屋隆志, 松下 拓   精密質量分析による3-メチル-4-ニトロフェノール塩素処理物中の変異原探索  

    平成24年度日本水環境学会九州支部研究発表会  2013.2 

  • 高梨啓和, 濱美紗希, 西山舞, 阿比留和也, 中島常憲, 大木 章, 松下 拓, 近藤貴志, 亀屋隆志   精密質量分析と天然同位体パターン分析によるフェニトロチオン光分解物質の探索  

    平成24年度日本水環境学会九州支部研究発表会  2013.2 

  • TAKANASHI Hirokazu, NAKAJIMA Tsunenori, OHKI Akira, KAI Takami, MARUYAMA Morito, IBA Makoto   An energy saving technology in a 1st generation biodiesel fuel production  

    Proceedings of the Annual Conference of The Japan Institute of Energy  2012.8  The Japan Institute of Energy

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    In BDF producing processes, separations of glycerol, methanol and catalyst with gravity are insufficient, so crude BDF must be rinsed with a large amount of hot water. As a result of rinsing, tremendous amount of methanol dissolved in wastewaters. In a typical BDF production process, all the wastewater are distilled to recover methanol and water. To distill the wastewater, large amount of energy is needed. The energy consumption is estimated as 6.43% of higher heating value of BDF. This estimation indicates that reducing wastewater amount can contribute to save energy consumption in BDF producing process. So, we tried to reduce wastewater amount by applying emusilication/demulsification technique.

  • 原口幸征, 金近文彰, 中島常憲, 高梨啓和, 大木 章   石炭試料中に含まれる水銀など微量元素の分析  

    第72回分析化学討論会  2012.5 

  • 中島常憲, 鶴ケ崎正人, 大木 章, 中 建介, 前田 滋   石炭表面の化学的性質とCWMスラリー化特性との関係  

    日本化学会第69春季年会  1995.3 

  • 中島常憲, 鶴ヶ崎正人, 大木 章, 前田 滋   石炭表面の化学的性質とCWMスラリー化特性との関係  

    第8回エネルギー工学研究会  1997.5 

  • 中島常憲, 上谷川昇, 高梨啓和, 大木章   石炭燃焼灰に含まれる微量元素の溶出とその抑制  

    第20回日本エネルギー学会大会  2011.8 

  • KAMITO Ryo, YAMADA Kenta, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of selenate in wastewater discharged from coal combustion process  

    2012.10  The Japan Institute of Energy

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    Wet flue gas desulfurization (FGD) wastewater discharged from coal combustion process contains some hazardous trace elements, such as selenium, boron, and mercury. The concentration of these hazardous trace elements was sometimes exceeded the effluent standard. In this study, the removal of Se(VI) from the simulated FGD waters by use of bioreduction and TiO_2 photocatalytic reduction were investigated. When the photocatalytic Se(VI) reduction systems were attempted for the simulated FGD waters, the reduction of Se(VI) to Se(0) precipitate was inhibited by the excess amount of co-existing anions, such as SO_4^<2->. When the removal of SO_4^<2-> from FGD water was carried out by use of a coagulation process, the removal efficiency of Se(VI) from the simulated FGD waters by the photoreduction process was improved.

  • TANAMACHI Shomei, IWASHITA Akira, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Release behavior of mercury and arsenic from coal during pyrolysis  

    Proceedings of Conference on Coal Science  2003.10  The Japan Institute of Energy

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    When coal is subjected to a pyrolysis (200-600℃) under N_2 flow, the release behavior of Hg and As was examined. For Hg, when the pyrolysis was performed at 300-400℃, the % release of Hg was greatly varied (20-90%) with the type of coal. Above 500℃, almost all coals gave high degree of % Hg release. For As, the % release gradually increased as the pyrolysis temperature was elevated, and reached ca. 40% at 600℃, which is common for all coals.

  • 藤島寛樹, 古園拓也, 中島常憲, 高梨啓和, 大木章   石炭灰中のセレンおよびホウ素の分析におけるマイクロ波支援酸分解法の最適化  

    分析日本分析化学会第66年会  2017.9 

  • 中島常憲, 横峯裕典, 福田薫, 高梨啓和, 大木章   石炭灰の洗浄による有害微量元素の除去と溶出防止  

    第44回日本水環境学会年会  2010.3 

  • 佐野翔大, 伊藤沙織, 藤田裕季, 中島常憲, 高梨啓和   石炭灰のエージングにより生成するエトリンガイトの有害アニオン種固定化機構の検討  

    日本エネルギー学会西部支部 第4回学生・若手研究発表会  2019.11 

  • NAKAJIMA Tsunenori, YOKOMINE Yusuke, FUKUDA Kaoru, TAKANASHI Hirokazu, OHKI Akira   Elution behavior and control of hazardous trace elements from coal ash  

    Proceedings of Conference on Coal Science  2009.11  The Japan Institute of Energy

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    The elution behavior and control of hazardous trace elements from coal ash which was produced from the coal fired power plant were investigated. When the leaching test was carried out for seven coal ashes, the elution of As and Hg was not observed. However, the concentrations of B and Se in the leachate frequently exceeded the environmental quality standards for soil pollution in Japan. Also, the elution control of hazardous trace elements was examined. The elution of B and Se from coal ash was effectively inhibited by an acid washing using 0.1M HCl.

  • 中島常憲, 上谷川昇, 高梨啓和, 大木章   石炭灰からの有害元素溶出に対する洗浄の効果  

    平成22年度日本水環境学会九州支部研究発表会  2011.3 

  • NAKAJIMA Tsunenori, Takemoto Mana, Fujita Hiroki, Fujishima Hiroki, TAKANASHI Hirokazu, OHKI Akira, Furuzono Takuya   Effect of aging process on leaching of trace elements from coal fly ash  

    54th Conference on Coal Science  2017.10  The Japan Institute of Energy

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    <p>Coal fly ash (CFA), which contains toxic elements such as selenium and boron. These elements are easily leached out to water environment and contaminate surface and ground waters. In this study, the leaching of Se and other trace elements from CFA samples was examined. When CFA samples were subjected to the leaching test which was referred to the notification No. 46 of the Japan environment agency leaching test, the leaching amount of B, Cr, and Se from original-CFA exceeded the standards of soil. The leaching amount of Cr was less than the standard for landfill, although that of Se was not satisfied to the standard for landfill. Also, the leaching of these elements from aged CFA sample was examined and the leaching amount of these elements degreased with the lapse of aging time.</p>

  • 山田健太, 井手原広季, 中島常憲, 高梨啓和, 大木章   石炭火力発電の排煙脱硫廃水からの有害微量元素除去  

    第44回日本水環境学会年会  2010.3 

  • KAWAI Harue, HASEGAWA Hiroyuki, NAKAJIMA Tsunenori, TAKANASIHI Hirokazu, OHKI Akira   Toxicity test for effluents obtained from coal utilization processes  

    2009.11  The Japan Institute of Energy

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    Two lignites and two sub-bituminous coals were treated by hot water extraction(HWE) and hydrothermal treatment(HTT), and the simulated effluents were obtained. The acute toxicity of these effluents was examined by use of three freshwater organisms(D. magna, O. latipes, and P. subcapitata). The effluent from HWE shows no toxicity. However, the effluent from HTT gave an obvious toxicity, and the degree of toxicities was increased as the elevation of HTT temperature. The toxicity of 350℃-HTT effluent was comparable to those for phenols when the three freshwater organisms were tested. Also, the degree of toxicity was discussed in terms of the molecular weight and chemical structures of organic component present in the effluent.

  • 中島常憲, 長谷川博之, 葛巻健, 高梨啓和, 大木章   石炭利用において発生する排水の環境負荷  

    H18年度日本水環境学会九州支部研究発表会  2007.3 

  • NAKAJIMA Tsunenori, HARAGUCHI Kosei, MINAMI Yuki, KANECHIKA Fumiaki, TAKANASHI Hirokazu, OHKI Akira   Development of Analytical method for Hazardous Trace Elements in Coal  

    2012.8  The Japan Institute of Energy

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    Coal contains various hazardous trace elements. For these hazardous elements, especially volatile elements, such as Hg is in great concern, because those elements are likely to be released into air when coal is burned. In this study, we examined the determination of trace elements in coal by use of microwave-acid digestion (MW-AD) followed by inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma atomic emission spectrometry (ICP-AES), and the effect of MW-AD condition upon the recovery of trace elements was investigated. In addition, the concentration of Hg in coal was measured by use of heat-vapor atomic absorption spectrometry (HVAAS).

  • 村田俊温, 伊東祐二, 中島常憲, 高梨啓和, 大木章   石炭中の微量元素分析における低温灰化法の利用  

    日本分析化学会第55年会  2006.9 

  • 平 美冴, 平川翔太, 原口幸征, 中島常憲, 高梨啓和, 大木 章   石炭中に含まれる水銀等微量元素の存在形態解析  

    日本エネルギー学会第50回石炭科学会議  2013.10 

  • 中島常憲, 高梨啓和, 大木章   石炭や石炭燃焼灰等の固体試料に含まれる有害微量元素の分析  

    日本分析化学会第64年会  2015.9 

  • 原口幸征, 平 美冴, 中島常憲, 高梨啓和, 大木 章   石炭や石炭灰等に含まれる微量元素の分析  

    第61回日本分析化学会年会  2012.9 

  • OKADA Shogo, KAMIKUBO Richio, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of hazardous trace element from coal in biodesulfurisation process  

    2005.11  The Japan Institute of Energy

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    Biodesulfurisation (BDS) of coal by use of Thiobacillus ferrooxidans was investigated. The % removal of inorganic S was 37-88% when the BDS was carried out for 30 days. The BDS efficiency was varied with the kind of coals, while the efficiency tended to decrease as the pH in the medium increased. The degree of pH was ruled by the amount of Ca leached from coal. When the pH in the medium was artificially controlled to be below 3.0, the BDS efficiency was greatly improved. The BDS process also resulted in effective removal of hazardous heavy metals, such as As, Hg, and Se.

  • KAMIKUBO Richio, OKADA Syogo, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Biodesulfurisation and leaching behavior of trace elements from coal  

    2004.11  The Japan Institute of Energy

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    Biodesulfurisation (BDS) of coal by use of Thiobacillus ferrooxidans was examined. For three Argonne premium coals, the % removal of inorganic S was 56-85% when the BDS was carried out for 30 days. An appreciable correlation was observed between the amounts of S and Fe leached. The % removals of S and trace elements obtained for the BDS were comparable to those when an acid-leaching was performed. The amount of acid used for the BDS was much less than that for the acid-leaching.

  • IDEHARA Hiroki, UEYAMA Yoshiaki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Biodesulfurization of coal and coking property of biodesulfurized coal  

    2009.11  The Japan Institute of Energy

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    Biodesulfurization of coals by use of Thiobacillus ferrooxidans was examined, and the coking property of the biodesulfurized coal was investigated in terms of button index (free swelling index). The % removal of inorganic sulfur was 40-90% when the biodesulfurization was carried out for four high sulfur coals. Also, biodesulfurization favorably worked for the removal of As and Se from coal. The chemical structures and coking property was not changed after biodesulfurization. These results suggest that the possibility of clean coke preparation from biodesulfurized coals.

  • NAKAJIMA Tsunenori, NAKAMATA Satomi, FUKUDA Takashi, TAKANASHI Hirokazu, OHKI Akira   Leaching of organic and inorganic matters from coal into aqueous media and their environmental toxicities  

    2004.11  The Japan Institute of Energy

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    When various coals were subjected to hot water extraction (HWE), the leaching of organic matters from coal was examined and evaluated in terms of total organic carbon (TOC). The degree of TOC in the HWE eluent greatly varied with kind of coals, and it tended to increase as the O/C value of coal increased. The degree of TOC in the eluent was also affected by specific surface area of coal. Ecotoxicities of the HWE eluents were evaluated by the Ames Salmonella mutagenicity assay and the estrogen receptor binding assay. The same examination was investigated for the elution behavior of organic matters in the waste water from hydrothermal treatment process.

  • SAGAYAMA Kota, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Release behavior and mode of occurrence of mercury and other trace elements in coal  

    2006.10  The Japan Institute of Energy

     More details

    Seven powdery coals (four SS coals and three Argonne premium coals) were subjected to pyrolysis at 300℃ under a flow of nitrogen, and the release of Hg, Se, and As from coal was examined. The % release of Hg was greatly varied (20-75%) depending upon the type of coals. But, the % release of Se and As was not so varied. In order to remove pyrite from coal, powdery coals were treated with 0.5M HNO_3 solution at 80℃. The resulting HNO_3-treated coals were also subjected to 300℃-pyrolysis, and the release of Hg was evaluated. Even for coals, which gave low % Hg release when the raw coal was pyrolyzed, nearly complete release of Hg was attained when the treated coal was pyrolyzed. The release behavior of Hg was discussed on the basis of the mode of occurrence of Hg in coal.

  • 平 美冴, 大村真紀子, 原口幸征, 中島常憲, 高梨啓和, 大木 章   石炭および石炭灰中の微量元素分析における酸分解の最適条件検討  

    日本エネルギー学会第51回石炭科学会議  2014.10 

  • 中島常憲, 川口悠太, 藤田裕季, 高梨啓和, 大木章   石炭および石炭灰に含まれるフッ素の水環境への溶出と簡易分析法の開発  

    日本分析化学会第67年会  2018.9 

  • 中島常憲, 上戸 龍, 高梨啓和, 大木 章   生物処理法や光触媒法を用いた水相からのセレン酸の除去  

    環境科学会2012年会  2012.9 

  • 本村 知寛, 杉元 貴哉, 中島 常憲, 大木 章, 高梨 啓和   環境試料から溶出するフッ素分析と水生生物への生態影響評価  

    日本分析化学会講演要旨集  2015.8  (公社)日本分析化学会

  • 本村 知寛, 杉元 貴哉, 中島 常憲, 大木 章, 高梨 啓和   環境試料から溶出するフッ素分析と水生生物への生態影響評価  

    日本分析化学会第64年会  2015.9  (公社)日本分析化学会

  • 加藤政和, 中島常憲, 高梨啓和, 大木 章   火山降灰中に含まれる有機及び無機微量成分の分析と溶出挙動  

    日本分析化学会第64年会  2015.9 

  • 加藤政和, 林 健太郎, 谷口遥菜, 中島常憲, 高梨啓和, 大木 章   火山降灰中に含まれる多環芳香族炭化水素の分析  

    日本分析化学会第63年会  2014.9 

  • 中島常憲, 上戸龍, 山田健太, 高梨啓和, 大木 章   湿式排煙脱硫液に含まれる有害元素除去法の開発  

    平成23年度日本水環境学会九州支部研究発表会  2012.3 

  • KAMITO Ryo, YAMADA Kenta, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of selenate from wet flue gas desulfurization wastewater  

    2011.10  The Japan Institute of Energy

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    Se(VI) was hard to remove from the aqueous media by using the conventional removal method, such as adsorption. Therefore, the removal of Se(VI) from the simulated wet FGD waters by use of bioreduction and TiO_2 photocatalytic reduction were investigated. When the bioreduction and photocatalytic reduction systems were attempted for a simple 0.5 mg/L Se(VI) solution, the reduction of Se(VI) to Se(0) precipitate actually occurrs and Se(VI) was effectively removed from aqueous media. However, the removal efficiency of Se(VI) was considerably inhibited by some co-existing anions, such as NO_3^- or SO_4^<2-> when these reduction methods were applied for the simulated FGD waters.

  • YAMADA Kenta, IDEHARA Hiroki, NAKAJIMA Tsunenori, TAKANASHI Hirokazu, OHKI Akira   Removal of hazardous trace elements from wet flue gas desulfurization wastewater  

    2009.11  The Japan Institute of Energy

     More details

    The removal of hazardous trace elements, such as Hg, Se, and B, from a flue gas desulfurization wastewater obtained from a pulverized coal combustion system was examined. B and Hg were effectively removed from the wastewater (simulated wastewater) by use of a glucamine type chelate resin or fiver. However, Se was hard to remove from the wastewater by using the adsorption method. The removal of Se from the wastewater by use of TiO_2 photocatalytic reduction was also attempted. Se(VI) in the wastewater was reduced to Se(0) and effectively removed from the wastewater.

  • 南 有紀, 河井晴恵, 中島常憲, 高梨啓和, 大木 章   淡水産生物を用いる生態影響試験における重金属生体内取込量の分析  

    日本分析化学会第60年会  2011.9 

  • 川原 毅, 高梨啓和, 中島常憲, 大木 章   淡水産生物に対するアンチモン化合物等の生態影響試験  

    地域提案JICA研修研究報告会 「ヒ素研究の最前線2003」  2003.10 

  • 川原 毅, 中島常憲, 高梨啓和, 大木 章   淡水産生物に対するアンチモン化合物等の生態影響試験  

    第38回日本水環境学会年会  2004.3 

  • 杉元 貴哉, 本村 知寛, 中島 常憲, 大木 章, 高梨 啓和   淡水性生物を用いる重金属の生態影響試験における共存物質の影響  

    日本分析化学会講演要旨集  2015.8  (公社)日本分析化学会

  • 岸田美紗子, 隈部丈雄, 高梨啓和, 中島常憲, 大木 章   消毒副生成物を考慮した農薬の管理  

    環境科学会2009年会  2009.9 

  • 中島常憲, 上谷川昇, 高梨啓和, 大木 章   洗浄剤による石炭灰からの有害元素溶出抑制  

    第45回日本水環境学会年会  2011.3 

  • 岸田美紗子, 隈部丈雄, 高梨啓和, 中島常憲, 大木章   河川水中のフェニトロチオンおよびその主要分解生成物  

    第44回日本水環境学会年会  2010.3 

  • 鬼束豊英, 高梨啓和, 中島常憲, 大木章   河川水の変異原性物質生成能(MFP)の検討  

    第41回日本水環境学会年会  2007.3 

  • 加治屋仁, 梨啓和, 中島常憲, 大木章   水道水の安全性向上を指向した農薬の環境安全性評価  

    第39回日本水環境学会年会  2005.3 

  • 加治屋仁, 浅岡哲朗, 小坂端樹, 新福桂子, 高梨啓和, 中島常憲, 大木章   水道水の変異原性削減に向けた農薬の変異原性物質生成能の測定  

    第40回日本水環境学会年会  2006.3 

  • 脇黒丸央, 高梨啓和, 中島常憲, 大木章   九州における水道水の変異原性調査と10年前の全国調査との比較  

    第38回日本水環境学会年会  2004.3 

  • 脇黒丸央, 高梨啓和, 中島常憲, 大木章   九州における水道水の変異原性レベルおよび水道原水水質との関係  

    第37回日本水環境学会年会  2003.3 

  • 林雄一, 高梨啓和, 中島常憲, 大木章   下水中変異原前駆物質の活性汚泥処理  

    第37回日本水環境学会年会  2003.3 

  • 中島常憲, 川畑孝徳, 川畑博文, 高梨啓和, 大木 章, 前田 滋   メチル化ヒ素化合物およびフェニルアルソン酸類の無機ヒ素化合物への分解  

    第11回ヒ素シンポジウム  2003.10 

  • 中島常憲, 川畑孝徳, 川畑博文, 高梨啓和, 大木 章, 前田 滋   メチル化ヒ素化合物およびフェニルアルソン酸類の無機ヒ素への分解  

    地域提案JICA研修研究報告会 「ヒ素研究の最前線2003」  2003.10 

  • 大木章, 山下浩幸, 岩下章, 中島常憲, 高梨啓和   マイクロ波処理酸分解とICP‐AES等による石炭中の金属含有量測定  

    日本分析化学会第52年会  2003.9 

  • 中島常憲, 本村知寛, 杉本貴哉, 高梨啓和, 大木 章   ヒ素等有害重金属の淡水生物への生態影響に対する共存物質の影響  

    第22回ヒ素シンポジウム  2016.11 

  • 佐野翔大, 中島常憲, 高梨啓和, 大木 章   ヒ素等有害元素のオオミジンコ急性毒性に対する不溶性粒子の影響  

    第24回ヒ素シンポジウム  2018.11 

  • 太田聖治, 高梨啓和, 中島常憲, 大木 章   ヒ素化合物の分別定量と生体試料への応用  

    地域提案JICA研修研究報告会 「ヒ素研究の最前線2003」  2003.10 

  • 緒方 秀樹, 飯山 愛, 西 里奈子, 中島 常憲, 高梨 啓和, 大木 章   バイオディーゼル燃料中からの不純物除去技術の開発  

    化学工学会第39回秋季大会  2007.9  公益社団法人 化学工学会

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Intellectual Property

  • 排水中の窒素除去方法

    高梨 啓和, 大木 章, 中島 常憲, 羽野 忠, 平田 誠, 藤本 尚則

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    Applicant:コスモ石油株式会社

    Application no:特願2004-095400  Date applied:2004.3

    Announcement no:特開2005-281033  Date announced:2005.10

    Patent/Registration no:特許第4303625号  Date issued:2009.5

    J-GLOBAL

  • グリセリンの高速メタン発酵方法

    高梨 啓和, 藤田 晋輔, 中島 常憲, 大木 章, 劉 宝鋼, 三崎 岳郎

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    Applicant:栗田工業株式会社

    Application no:特願2004-095829  Date applied:2004.3

    Announcement no:特開2005-279411  Date announced:2005.10

    J-GLOBAL

  • 球状硫黄およびその製造法

    高梨 啓和, 大木 章, 中島 常憲, 羽野 忠, 平田 誠, 藤本 尚則

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    Applicant:コスモ石油株式会社

    Application no:特願2004-095400  Date applied:2004.3

    Announcement no:特開2005-281033  Date announced:2005.10

    J-GLOBAL

  • 排水中の窒素除去方法

    高梨 啓和, 大木 章, 中島 常憲, 羽野 忠, 平田 誠, 藤本 尚則, 渡辺 圭太郎

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    Applicant:コスモ石油株式会社

    Application no:特願2004-095399  Date applied:2004.3

    Announcement no:特開2005-279405  Date announced:2005.10

    Patent/Registration no:特許第4523786号  Date issued:2010.6

    J-GLOBAL

Research Projects

  • 土壌中でのヒ酸置換型ヒドロキシアパタイトのin situ合成によるコメ中ヒ素低減

    Grant number:22K12429  2022.4 - 2026.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    中島 常憲

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    桜島などの火山から噴出される火山灰は、火山ガスに含まれるフッ素(F)を吸着し大気中へ放出される。火山灰に吸着したフッ素は火山灰とともに直接人体へ取り込まれ健康被害を引き起こし、堆積した火山灰が雨水などと接触した場合には環境を汚染する。よって、火山灰中の全フッ素含有量分析が重要であるが、火山灰のようにケイ素やアルミニウムを主成分とする無機固体試料は通常の酸分解では溶液化が困難であり、特にフッ素の分析においては、フッ酸を用いる分解法が適用できず、一般的な固体試料の元素分析法である蛍光X線分析でもフッ素のような軽元素は分析が困難である。
    本研究では、複雑な装置を必要としない「酸素フラスコ燃焼法(OFC法)」による試料溶液化法により火山灰中に含まれる全フッ素濃度の簡便な分析法開発を目指し難燃性固体中フッ素のOFC法最適化条件の検討を行った。
    H30年度は、文献調査などから火山灰に含まれるフッ素化合物を推定し、フッ化水素、フッ化カルシウム、フルオロケイ酸塩、フルオロアルミン酸塩のような形態で火山灰中に含まれていると推定した。上記フッ素化合物をモデル物質として使用し、OFC法による前処理を検討した。また、OFC法では可燃成分含有量の低い試料の燃焼が困難であるという欠点を克服するため、火山灰類似の難燃性固体試料として石炭灰を用いて、助燃剤を添加することを検討し、さらに試料中の難溶性フッ素化合物を反応させ、溶出させるために反応触媒の添加も検討した。フッ化カルシウムやフルオロアルミニウム塩の場合、融点や分解温度が高いため、助燃剤や反応触媒を添加しない場合はフッ素の回収率が低かったが、助燃剤、反応触媒の添加において、フッ素回収率の向上がみられた。
    また、分解液中のF検出法として、ランタンアリザリンコンプレキソン法を適用することも試み、オンサイト分析に向けた検討を行った。

  • 鉄鋼排水中の金属錯体の存在と生態毒性への寄与評価

    2020.10

    鉄鋼環境基金  鉄鋼環境基金環境研究助成研究(一般研究助成) 

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    Authorship:Principal investigator 

    Grant amount:\15000000

  • 火山灰中のフッ素等有害微量元素のオンサイト分析を目指した簡易溶液化法開発

    Grant number:17K05906  2017.4 - 2020.3

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    中島 常憲

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    桜島などの火山から噴出される火山灰は、火山ガスに含まれるフッ素(F)を吸着し大気中へ放出される。火山灰に吸着したフッ素は火山灰とともに直接人体へ取り込まれ健康被害を引き起こし、堆積した火山灰が雨水などと接触した場合には環境を汚染する。よって、火山灰中の全フッ素含有量分析が重要であるが、火山灰のようにケイ素やアルミニウムを主成分とする無機固体試料は通常の酸分解では溶液化が困難であり、特にフッ素の分析においては、フッ酸を用いる分解法が適用できず、一般的な固体試料の元素分析法である蛍光X線分析でもフッ素のような軽元素は分析が困難である。
    本研究では、複雑な装置を必要としない「酸素フラスコ燃焼法(OFC法)」による試料溶液化法により火山灰中に含まれる全フッ素濃度の簡便な分析法開発を目指し難燃性固体中フッ素のOFC法最適化条件の検討を行った。
    H30年度は、文献調査などから火山灰に含まれるフッ素化合物を推定し、フッ化水素、フッ化カルシウム、フルオロケイ酸塩、フルオロアルミン酸塩のような形態で火山灰中に含まれていると推定した。上記フッ素化合物をモデル物質として使用し、OFC法による前処理を検討した。また、OFC法では可燃成分含有量の低い試料の燃焼が困難であるという欠点を克服するため、火山灰類似の難燃性固体試料として石炭灰を用いて、助燃剤を添加することを検討し、さらに試料中の難溶性フッ素化合物を反応させ、溶出させるために反応触媒の添加も検討した。フッ化カルシウムやフルオロアルミニウム塩の場合、融点や分解温度が高いため、助燃剤や反応触媒を添加しない場合はフッ素の回収率が低かったが、助燃剤、反応触媒の添加において、フッ素回収率の向上がみられた。
    また、分解液中のF検出法として、ランタンアリザリンコンプレキソン法を適用することも試み、オンサイト分析に向けた検討を行った。

  • 火山降灰微粒分の成分分析によるPM2.5発生源プロファイルの作成

    Grant number:16K05870  2016 - 2017

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    大木 章, 中島 常憲

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    Grant amount:\4940000 ( Direct Cost: \3800000 、 Indirect Cost:\1140000 )

    桜島が噴火したときに火山降灰を採取し、500-75、75-53、53-38、<38μmの4種の粒子径に分級した。音波ふるいを用いて分級した20μm以下の微粒分は1%以下であったため、上記4種に分級した試料についてのみ分析を行った。無機元素成分分析は、環境省水・大気環境局による「微小粒子状物質(PM2.5)の成分分析ガイドライン」に準じた。
    降灰試料のマイクロ波支援酸分解とICP-MS分析を行い、測定対象の元素について、全体試料における濃度と分級した試料における濃度との比較検討を行った結果、Se、Pb、Asなどのように微粒分ほど濃度が高くなる元素と、Mn、Co、Cr、Niなどのように濃度が粒子径に依存しない元素が存在した。火山降灰と同時に噴出する火山ガス中に含まれる元素を吸着する場合は、粒子径によって元素濃度が変化する。吸着に関与しない元素については、マグマ成分中に含まれる元素濃度が反映するので、濃度は粒子径によらず一定である。粒子径別試料の分析において、試料および元素によっては、このような規則的変化を示さず異常値が観測される場合があった。この現象が、単に分析値のバラツキによるものか、他の発生源由来の微粒子が混入しているためなのか特定するには至らなかったため、分析結果に異常値が見られるときは、発生源プロファイル作成時に除外した。
    以上の結果をもとに、無機元素成分について桜島火山の発生源プロファイルを作成した。鹿児島市役所より鹿児島市内にて測定したPM2.5無機元素成分分析結果を入手し、作成した発生源プロファイルを用いて、PM2.5発生源への火山噴火の寄与率について、CMB法を用いて検討したところ、PM2.5発生源への火山噴火の寄与率は、数%程度であり低いことが分かった。

  • Development of base materials for seaweed beds using volcanic ashes and recycling materials of industrial wastes and its long-term monitoring

    Grant number:15K00603  2015.4 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    YAMAMOTO Kentaro

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    (1) The base materials for seaweed beds which reduce the environmental load could be developed using volcanic ashes and recycled materials from industrial waste. (2) From the results of the long-term monitoring, the mixture of scrapped ceramics, recycled gypsum and some iron powders were very effective for the rooting and growth of seaweed. (3) It was difficult to distinguish the developed base materials for seaweed beds from natural stones in the seabed due to the attachment of many barnacles and the rooting and growth of seaweed. In addition, once the rooting of seaweed could be successful, we could observe the rooting of seaweed again even if the seaweed wither. (4) When the additional use of cement is approximately 4.0% of the whole weight, the quality of developed base materials was finally inadequate for the rooting of seaweed because the wear on the surface of base materials could be seen by waves.

  • Investigation of air pollutants by using the ash fall from Mt. Sakurajima as a scavenger of aerosol in the free troposphere

    Grant number:25620143  2013.4 - 2016.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

    Ohki Akira, NAKAJIMA TSUNENORI

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    Grant amount:\4030000 ( Direct Cost: \3100000 、 Indirect Cost:\930000 )

    A precise determination of polycyclic aromatic hydrocarbons (PAHs) contained in volcanic ash was established. When Mt. Sakurajima erupted, the samples of ash fall (AF) were collected, and the PAH concentrations were measured. The total concentrations of 10 kinds of 3-4 ring PAHs in the AF samples were 1.6-5.1 ng/g, and the concentrations tended to be higher when the particle size was smaller. When the amount of AF was larger, the concentrations of mercury in the AF samples were lower. It is proposed that AF works as a scavenger of aerosol in the atmosphere including the free troposphere, and adsorbs pollutants, such as PAHs and mercury, in the aerosol. Thus, the components present in the AF samples reflect those in the atmospheric aerosol in terms of annual variation. However, the contribution of transboundary air pollution cannot be determined in the components.

  • Fate of mercury and selenium contained in fish in the recycle of fishery product wastes

    Grant number:22350069  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    OHKI Akira, NAKAJIMA Tsunenori

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    Grant amount:\14950000 ( Direct Cost: \11500000 、 Indirect Cost:\3450000 )

    In the recycle of fishery product wastes, the fate of mercury and selenium was investigated on the viewpoint of the generation of hazardous free species.Although the methylmercury species contained in fish meat was stabilized and detoxified by selenoprotein, it was clarified that free methylmercury and low-molecular selenium species were generated when the fish meat was subjected to a hydrothermal treatment (subcritical water treatment). Also, it was found that the demethylation of methylmercuryas well as the vaporization of selenium occurred during fermentation (compost) processes.

  • Purification of crude biodiesel fuel by emulsification/demulsification

    Grant number:20310044  2008 - 2010

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    TAKANASHI Hirokazu, OHKI Akira, NAKAJIMA Tsunenori

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    Grant amount:\15210000 ( Direct Cost: \11700000 、 Indirect Cost:\3510000 )

    The amount of water needed to purify crude biodiesel fuel (BDF), which was synthesized using alkali catalysts, was studied experimentally and theoretically. It depended on the species of soap, the initial concentration of alkali metal and the extraction temperature. For example, 35mg-K/kg of potassium oleate can be extracted at 353K from methyl oleate using 0.16 % of water, which is one 1,875th of water amount in a conventional purification process.

  • Treatment of sparingly removable hazardous metals by photocatalytic reaction

    Grant number:20710062  2008 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)  Grant-in-Aid for Young Scientists (B)

    NAKAJIMA Tsunenori

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    Grant amount:\4420000 ( Direct Cost: \3400000 、 Indirect Cost:\1020000 )

    A new method for the treatment of sparingly removable hazardous metals by photocatalytic reaction from aqueous media, was proposed and investigated. This method involves the use of photocatalytic oxidation or reduction of sparingly removable hazardous metals and absorption. Also, a novel TiO2-adsorbent hybrid (HYB) which has some photocatalyst sites and adsorbent sites on the same particle was developed.

  • Change in chemical form of mercury in fish meat during the recycling process of food waste

    Grant number:19550151  2007 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    OHKI Akira, TAKANASHI Hirokazu, NAKAJIMA Tsunenori

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

  • 難除去性重金属イオン回収のための光触媒-吸着剤ハイブリッド

    Grant number:17029054  2005 - 2006

    日本学術振興会  科学研究費助成事業 特定領域研究  特定領域研究

    大木 章, 高梨 啓和, 中島 常憲

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    Grant amount:\3400000 ( Direct Cost: \3400000 )

    1.吸着剤(活性アルミナ)表面に光触媒サイト(TiO_2)をもつハイブリッド吸着剤(HYD)を調製した。種々の調製条件を模索し、最適条件を見いだした。活性アルミナをそのまま用いてAs(III)の回分式吸着処理を行った場合は、除去率は30%程度であったが、光照射下でHYDを用いると、ほぼ100%の吸着・除去が達成できた。これは、As(III)が光触媒反応によって、吸着性の高いAs(V)に酸化され、効果的に吸着されたためである。
    2.固液分離等のハンドリングを考慮すると、水処理にはカラム等の連続処理装置を用いる必要がある。HYBを充填したらせん型カラムを用いて連続処理装置を組み立て、As(III)溶液の処理を試みた。光照射の有無により吸着容量が大きく異なったので、カラム法においても光酸化-吸着機構により、効果的なAs(III)除去が可能であることがわかった。
    3.Se(VI)の吸着・除去については、まず光触媒(TiO_2)と還元剤(ギ酸)を用いて、光照射下で回分式反応を行った。5h後には水相中のセレン濃度はほぼ0となり、器壁にSe(0)が析出した。ここに活性アルミナを添加しても結果はほとんど変わらなかったが、TiO_2のかわりにHYDを用いると器壁への吸着はほとんど起こらずに、HYD上にSe(0)が析出した。当初は、Se(VI)をSe(IV)へ還元し、HYD上へ可逆的に吸着することを目論んだが、還元反応がSe(IV)で止まらずにSe(0)まで進んだ。しかしながら、HYDを用いることで、セレンの回収性は向上することがわかった。この系をカラム等の連続処理装置へ応用するためには、Se(IV)で還元を止める必要があり、今後検討する。
    4.ソルボサーマル法により調製したTiO2は、通常のものに比べてAs(III)の光酸化能力が向上することを見いだした。

  • Simple Speciation Technique for Arsenic and Antimony in Waste Material Recycling Processes

    Grant number:16550079  2004 - 2005

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    OHKI Akira, TAKANASHI Hirokazu, NAKAJIMA Tsunemori

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    Grant amount:\3400000 ( Direct Cost: \3400000 )

    HPLC-hydride generation atomic fluorescence spectrometry (HPLC-HGAFS) is one of the arsenic speciation methods for biological samples, and the pretreatment of samples for the analytical method was studied. By use of various certified reference materials, the optimum conditions for the pretreatment (especially for the selection of extraction solvent) were examined. When the conventional method was used, the recovery of arsenic species except for arsenobetaine (AsB) was not good. The use of phosphoric acid solution as an extraction solvent resulted in the satisfactory recovery for not only AsB but also inorganic arsenicals (As(III) and As(V)), monomethylated arsenicals (MMA), and dimethylated arsenicals (DMA). Cryo trap-hydride generation atomic absorption spectrometry (CV-HGAAS), which is another method of arsenic speciation, was also tried, and it was found that CV-HGAAS gave about the same result that was obtained by HPLC-HGAFS. So far, there have been only a few studies about the comparison between the CT method and the HPLC method. In this study, we clarified the characteristics of both methods, and it is proved that the CT method has an advantage in the simplicity of operation, whereas the method can provide the same result that the HPLC method does. For the determination of total arsenic in the samples, microwave-assisted acid digestion was attempted, and the optimum conditions for the determination of arsenic and antimony were established (This result was submitted to a journal, Talanta, and accepted.) When dimethylarsenic acid (as a DMA) or AsB was added in a methane fermentation sludge, and the speciation of arsenic in the sludge was performed during the fermentation process. As the fermentation proceeded, DMA was methylated into AsB, and it was further transformed into trimethylarsine, which was transferred to gas phase. For the speciation of antimony, the fractional determination of trimethyl species and inorganic species was favorably carried out by use of CT-HGAAS.

  • Restoration Technique for Heavy Metal Polluted Soil by Use of Hydrothermally-Treated Microargae, Chrollera

    Grant number:12680574  2000 - 2001

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    OHKI Akira, NAKAJIMA Tsunenori, TAKANASHI Hirokazu

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    Grant amount:\3500000 ( Direct Cost: \3500000 )

    Recently, the heavy metal pollution of soil for the site of chemical factory and metal-refining factory have been frequently in trouble. Also, the landfill of fossil fuel ash and municipal incineration ash have caused the pollution of soil and groundwater. In this study, the leaching removal of heavy metals from polluted soil, coal fly ash, and incineration ash was performed by use of hydrothermally-treated natural products, which are abundantly present but so far unused. Firstly, hydrothermally-treated microalga cell (cellulose) were tested, however the resulting matter did not show good leaching ability. Then, pectin, which has a carboxyl group within a molecule, was hydrothermally-treated at various temperature (130-220℃), and the resulting matter was used for a leaching agent. When the treating temperature was 175℃, the best leaching ability for heavy metals in some reference standards of polluted soil was obtained. Such a biochelating agent also effectively worked for the leaching of arsenic from coal fly ash and municipal incineration ash. A squeeze residue of mandarin orange, which contains a lot of pectin, was hydrothermally-treated, and the resulting matter showed a leaching ability similar to that for the hydrothermally-treated pectin. Further, the selective recovery of arsenic from the leaching waste was attempted. It was found that an aluminium-loaded Shirasu-zeolite, which was prepared from an unused resource, Shirasu, in Kagoshima Prefecture, worked as an effective adsorbent for arsenic.

  • Development of Advanced Cleaning Technology for Hazardous Heavy Metals in Coal

    Grant number:11218209  1999 - 2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Priority Areas  Grant-in-Aid for Scientific Research on Priority Areas

    OHKI Akira, NAKAJIMA Tsunenori, TAKANASHI Hirokazu

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    Grant amount:\29900000 ( Direct Cost: \29900000 )

    About the hazardous heavy metals in coal and coal ash, the development of measurement methods and the studies on the removal and leaching behaviors were carried out. The results obtained in this study are as follows.
    1. For the various elements in coal and coal fly ash, the measurement methods were established. The optimum conditions for the acid-decomposition by use of microwave processor were assessed. For volatile elements, such as Hg and F, the oxygen flask combustion method was also successful. The decomposition solutions obtained were analyzed, and the cold vapor AAS for Hg, hydride generation AAS for As and Se, ion-selective electrode for F, and ICP-AES for other elements were applied.
    2. The leaching behavior of various elements from coal to diluted acid solutions and chelating agent solutions was examined. Among heavy metals, Mn was easy to leach, while Cu, Pb, and Zn were also considerably leached. The leaching amount of element was almost proportional to its content in coal. The tendency of element leaching into diluted acid solutions was similar to that into chelating agent solutions.
    3. For the effective removal of Hg from coal, the heating of coal under nitrogen flow at 300-400℃ (mild pyrolysis) was proposed. Some coals showed high Hg removals of over 80%, whereas the Hg removal of some coals was very low. The difference in the Hg removal efficiency among coals was ascribed to that in the mode of occurrence of Hg in coal.
    4. It was proved that some hazardous elements, such as As, B, and Se, were easy to leach out from coal fly ash. When fly ash was subjected to a hydrothermal treatment, As was effectively removed from the ash. The wastewater obtained by the process was treated with an adsorbent, Al-loaded Shirasu zeolite, which had been newly prepared, resulting in the efficient removal of As from the wastewater.

  • 低炭化度炭および風化炭の高濃度石炭-水スラリー燃料への利用

    Grant number:10750570  1998 - 1999

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    中島 常憲

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    Grant amount:\2200000 ( Direct Cost: \2200000 )

    本研究では瀝青炭などの高石炭化度炭に比べ、水分含有量が多く取り扱いにくい低石炭化度炭を水熱処理し、処理炭のキャラクタリゼーションと高濃度石炭-水スラリー燃料(CWM)を調製するスラリー化条件を検討した。本年度は、まずオートクレーブを使用し数種の褐炭について水熱処理を行い、処理後の石炭について示差走査熱量計(DSC)による石炭表面の束縛水量の分析を行った。測定の結果、石炭表面の束縛水はその凝固特性の違いにより、-100℃でも凝固しない不凍水、-50℃付近で凝固する結合水、の2種に分類できることが分かった。また褐炭原炭では、結合水の量が通常の瀝青炭と比較して多く存在し、水熱処理温度を高くするにつれて結合水量は減少した。結合水の減少は、実際のCWMのスラリー化特性とくに高濃度化性の上昇と対応し、結合水が少ないほどCWMの高濃度化性は良かった。さらに、水熱処理炭CWMの調製時に添加する添加剤の種類や量が、CWM水相中における結合水量に与える影響についても検討した。その結果、添加剤としてポリスチレンスルホン酸塩やポリイソプレンスルホン塩を用いた場合は、CWMスラリー化特性がよくCWM中において結合水の量も少なかった。逆にナフタレンスルホン酸塩やポリメタクリル酸塩を用いた場合はスラリー化特性が悪く、このときの結合水は多いという結果となった。また、添加剤の量については、どの添加剤についても瀝青炭CWMの調製条件よりも多量必要で、1.0-1.5wt%/coalの添加が必要であった。今後は添加剤添加量の少量化が課題である。また、風化炭(酸化炭)における結合水の定量も試みた。
    これらの結果からDSC測定において定量した石炭表面の結合水量は、CWMスラリー化特性と良い相関性を示すことが分かった。つまり、DSCを用いて結合水量を定量することで、CWMのおよそのスラリー化特性が見積もれる可能性が示唆された。
    尚、本年度の研究成果は第36回石炭科学会議(船橋市)にて発表されている。

  • Application of Novel Separation Field, Polymer Aggregate, to Capillary Electrophoresis

    Grant number:10650799  1998 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    OHKI Akira, NAKAJIMA Tsunenori

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    Grant amount:\3300000 ( Direct Cost: \3300000 )

    Some amphiphilic block-copolymers consisting of poly [(N-acylimino) ethylene] structure, which has hydrophilic blocks and hydrophobic blocks, form aggregates of 100 nm diameter in aqueous media. The polymer aggregate (AG) was added to the running solution of capillary electrophoresis (CE), and the further addition of a small amount of anionic surfactant, such as SDS, to provide negative charges onto the aggregate surface resulted in the functioning of AG as a pseudo-stationary phase (AG-CE). Thus, neutral compounds, such as phenols, were migrated in the order of lipophilicity. Compared to the conventional micellar electrokinetic chromatography by use of SDS (SDS-MEKC), the migration of nitrophenols was greatly retarded. Such anionic species are incorporated neither into AG nor into SDS micelles. The charge density of AG is much smaller than that of SDS micelles. Therefore, it appears that the migration of neutral species, which are incorporated in SDS micelles are smaller than that of the anionic species, whereas such a delay in the neutral species migration was not observed for the species incorporated in AG.Consequently, in AG-CE the migration of anionic species is smaller than that of neutral species incorporated in AG, unlike SDS-MEKC.
    To attain a novel micellar chromatography, the AG was added to the mobile phase in a reversed-phase chromatography (AG-LC). For the separation of naphthalenesulfonate derivatives, AG-LC showed a considerably different selectivity from that for the conventional micellar chromatography.
    In the future, the expression of further molecular recognition ability through the molecular modification of amphiphilic block-copolymers will hopefully lead to new applications of AG to CE and related chromatography technologies.

  • 環境中のアンチモンの挙動と影響解析

    Grant number:09248233  1997

    日本学術振興会  科学研究費助成事業 重点領域研究  重点領域研究

    前田 滋, 中島 常憲, 大木 章

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    我が国では難燃性の付加が要求されるほとんどすべてのプラスチック・ゴム・繊維製品(OA機器や家庭電化製品)に、難燃剤とともに三酸化アンチモンが配合されており、この三酸化アンチモンは回収不能であるので、三酸化アンチモンの環境中への蓄積は年々増加しているものと推測される。
    ヒ素の水環境指針値(0.01ppm)よりも厳しい値が与えられたアンチモン(0.002ppm)について、自然界に放出された場合の環境中での挙動とその影響を解析するために、淡水生物への影響、生物濃縮、食物連鎖を介しての生体内変換挙動を研究した。
    クロレラ(Chlorella vulgaris)と第二栄養段階生物である2種のミジンコ(玉ミジンコMoina macrocopa,大ミジンコDaphnia magna)の生育への影響を検討した結果、3価、5価の無機アンチモン化合物は、3価、5価の無機ヒ素化合物のそれぞれと比べて、毒性はむしろ小さいことが分かった。
    クロレラに取り込まれたアンチモンは、クロレラ細胞のタンパク質に結合した形態と、細胞質中に五価の無機アンチモンの形態で存在していた。
    クロレラ→ミジンコの食物連鎖過程でアンチモンの生体内濃度は減少し、食物連鎖を介してアンチモンの蓄積が増加する現象は見られなかった。
    クロレラは、水相から取り込んだ3価のアンチモンを、毒性が数十分の一である5価のアンチモンに変換して、速やかに排出する能力があり、またアンチモンを取り込んだクロレラを摂取したミジンコも、アンチモンを蓄積せず排出するので、これら供試した淡水生物はアンチモンの環境負荷の軽減化に寄与できることが分かった。

  • 微生物センサーによる環境保全技術

    Grant number:08255242  1996

    日本学術振興会  科学研究費助成事業 重点領域研究  重点領域研究

    大木 章, 中島 常憲, 前田 滋

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    Grant amount:\900000 ( Direct Cost: \900000 )

    バクテリアや酵母などを感応素子として用いる微生物センサーにおいて大きな問題点は,試料溶液に微生物に対して有害な物質が混入する場合,微生物がダメ-ジを受け異常応答したり耐久性が悪くなることである。本研究では,本研究者らがかねてより単離していたヒ素に耐性を示す微生物(バクテリア)Klebsiella oxytocaを用いてBODセンサーを作成し,種々の重金属や有害物質を含む試料溶液を用いてその影響を検討した。従来のセンサーでは,試料溶液が重金属イオンを含むと,洗浄溶液に切り替えたときに有害物質の注入から解放されたために,一時的に微生物の呼吸活性が増しゴ-ストピークを生じるという問題があった。特に,鉛,亜鉛,鉄イオンが共存する場合このような問題は顕著であった。K.oxytocaセンサーを用いるとこのようなゴ-ストピークは見られずに安定した測定が行えた。K.oxytocaセンサーは,重金属ばかりでなく,有害物質のフェノールに対しても,従来のセンサーより高い安定性を示した。このK.oxytocaセンサーは,BODセンサーの基本性能も優れており,種々の糖類やアミノ酸類に対して良好な応答を示した。また,実際の排水サンプルについても5-day BODと良い相関性を示した。また,K.oxytocaのヒ素耐性機構について調べ,重金属耐性を向上させる細胞の順化方法について検討し,センサーの耐久性向上に結びつけた,さらに,微生物を膜に固定化する方法について改良法を検討した。備品として購入したガスクロは,ヒ素耐性発現の一つの原因として微生物体内で生成されるメチル化ヒ素の分析に使用した。

  • 環境中の微量有害金属の挙動と影響解析

    Grant number:08255241  1996

    日本学術振興会  科学研究費助成事業 重点領域研究  重点領域研究

    前田 滋, 中島 常憲, 大木 章

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    Grant amount:\2300000 ( Direct Cost: \2300000 )

    本研究ではアンチモンの環境中の挙動と影響について研究した。我が国ではアンチモンは難燃助剤(Sb_2O_3)として年間約12000トン使用されている。アンチモン(Sb)の急性毒性(LD_<50>)はヒ素等に比べてかなり小さいと考えられていたが、慢性毒性評価を重視した近年の汚染物質評価では、この順位は逆転した。1993年12月1日に施行された水道水質基準では、要監視項目という区分ながら、水環境指針値および水道水質基準値は、0.002mg/ιという最も厳しい基準(ヒ素は0.01mg/ι)が設けられた。
    本研究では微細藻類に取り込まれたアンチモン化合物が細胞内のどのような成分と結合しているかを、ゲルクロマトグラフを用いて研究した。アンチモンと結合しているタンパク質を分離し、分子量分画した後、得られた分画のアンチモン濃度を測定した。アンチモン暴露クロレラ細胞中の可溶化タンパク質の低分子量分画分(MW:約3万)中にアンチモンが検出された。このアンチモン結合可溶化タンパク質を分取し、金属結合タンパク質の種類やアミノ酸組成を調べた。その結果、アンチモン結合可溶化タンパク質中のシステイン含量が異常に増加することが分かった。著者のこれまでの研究から、ヒ素暴露ではシステイン含量の増加は見られなかったが、アンチモン暴露によってメタロチオネイン様のタンパク質が誘導され毒性金属の無毒化が行われていることが明らかになった。
    またこのほかアンチモン化合物を濃縮した微細藻顆を、ミジンコに与え、このミジンコを餌にしてグッピ-またはエビを飼育した。この3段階の食物連鎖において、生体内への蓄積金属の濃度の変化、化学形の変化を追跡し、アンチモンの毒性と取り込み挙動が明らかになった。これらを利用して環境中のアンチモンの除去と解毒の可能性が見出された。

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