Updated on 2025/12/17

写真a

 
TAKAHASHI FUMITAKE
 
Organization
School of Environment and Society Professor
Title
Professor
Homepage
http://www.tf.depe.titech.ac.jp/index.html
External link

News & Topics

Degree

  • Doctor of Engineering ( 2005.3   The University of Tokyo )

Research Interests

  • Waste management

  • Value-added waste recycle

  • Design for waste sorting

  • Psychological mechanisms of waste sorting

  • Waste incineration ash transform to soil

  • Waste-to-Energy

Research Areas

  • Environmental Science/Agriculture Science / Environmental load reduction and remediation

  • Environmental Science/Agriculture Science / Environmental load and risk assessment

  • Humanities & Social Sciences / Design

  • Energy Engineering / Earth resource engineering, Energy sciences  / バイオマスエネルギー

  • Environmental Science/Agriculture Science / Environmental policy and social systems

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

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Environmental systems for civil engineering

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Education

  • The University of Tokyo   The Graduate School of Engineering   Department of Urban Engineering

    2000.4 - 2005.3

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    Country： Japan

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  • The University of Tokyo   The Faculty of Engineering   Department of Urban Engineering

    1996.4 - 2000.3

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    Country： Japan

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Research History

  • Tokyo Institute of Technology   School of Environment and Society   Professor

    2024.4

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  • Tokyo Institute of Technology   School of Environment and Society   Associate Professor

    2015.4 - 2024.3

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  • Tokyo Institute of Technology   Interdisciplinary Graduate School of Science and Engineering   Associate Professor

    2012.4 - 2015.3

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  • Kyushu University   Graduate School of Engineering Department of Environmental Engineering   Assistant Professor

    2008.11 - 2012.3

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  • Kyushu University   Graduate School of Engineering Department of Environmental Engineering   Project assistant professor

    2005.4 - 2007.10

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  • National Institute for Environmental Studies   Center for Material Cycles and Waste Management Research   NIES post-doctoral fellow

    2005.4 - 2007.3

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Professional Memberships

Papers

  • Integrated hydrothermal carbonization and pyrolysis for valorizing high-moisture biomass: Structural evolution and energy efficiency evaluation Reviewed

    Hao Xu, Douglas Hungwe, Pu Yang, Mengzhu Yu, Hieng Ong Tie, Kunio Yoshikawa, Fumitake Takahashi

    Renewable Energy   258   124998 - 124998   2026.2

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.renene.2025.124998

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  • Selenium enrichment in floating particles after water float-sink procedure: Insights into risk control of alkaline-leachable elements Reviewed

    Yueyuan Zhao, Takayuki Honjo, Hao Xu, Yungang Zhao, Huzhen Liang, Hirofumi Sakanakura, Fumitake Takahashi

    Science of The Total Environment   1011   181121 - 181121   2026.1

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.scitotenv.2025.181121

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  • Financial feasibility and optimization of anaerobic digestion systems for sustainable waste management: A comprehensive global analysis Reviewed

    Ali Marefat, Abooali Golzary, Fumitake Takahashi, Donald Huisingh

    Cleaner Environmental Systems   19   100339 - 100339   2025.12

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

    DOI： 10.1016/j.cesys.2025.100339

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  • A quantitative answer to the question; what operational variable is the most effective to improve the outputs of biomass pyrolysis and gasification? Reviewed

    M Ismail Bagus Setyawan, Hao Xu, Yamsomphong Kanokwan, Vinayak Gupta, Pu Yang, Fumitake Takahashi

    Energy Conversion and Management   342   120097   2025.10

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.enconman.2025.120097

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  • Enhancing water retention performance of biochar modified by alkali-treated coal fly ash: pyrolysis behavior Reviewed

    Pu Yang, Hao Xu, Mengzhu Yu, Kanokwan Yamsomphong, M Ismail Bagus Setyawan, Fumitake Takahashi

    Environmental Technology & Innovation   39   104306   2025.8

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.eti.2025.104306

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  • Excellent but strange adsorption performance of shrimp shell-derived adsorbent for anionic pollutant removal Reviewed

    Kanokwan Yamsomphong, Hao Xu, Pu Yang, M Ismail Bagus Setyawan, Natnicha Yotpanya, Toshiyuki Yokoi, Fumitake Takahashi

    Chemical Engineering Journal   515   163683   2025.7

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.cej.2025.163683

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  • Improper Discharge Mechanisms of Regulated Biomedical Wastes from Small-scale Clinics: Risk Perception, Level of Inconvenience, Perceived Difficulty, Perceived Container Volume, and Inspection Results Reviewed

    Daisuke Sugimoto, Fumitake Takahashi

    Journal of the Japan Society of Material Cycles and Waste Management   36   19 - 33   2025.6

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    Authorship：Last author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Waste Management Experts  

    DOI： 10.3985/jjsmcwm.36.19

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  • Transforming waste into wealth in sustainable shrimp aquaculture: Effective phosphate removal and recovery using shrimp shell-derived adsorbents Reviewed

    Kanokwan Yamsomphong, Hao Xu, Pu Yang, Natnicha Yotpanya, Toshiyuki Yokoi, Fumitake Takahashi

    Separation and Purification Technology   357   129982   2025.5

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.seppur.2024.129982

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  • Effect of bubble size on microbial community in intermittently-aerated activated sludge process in wastewater treatment Reviewed

    Tetsuji Okamoto, Fumitake Takahashi, Mitsuhiko Koyama, Kiyohiko Nakasaki

    Process Biochemistry   152   38 - 46   2025.5

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

    DOI： 10.1016/j.procbio.2025.02.011

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  • Co-hydrothermal carbonization of polyvinyl chloride and rice straw for solid fuel production: Investigation into effect of solid to water ratio using Box-Behnken design and response surface methodology Reviewed

    Hao Xu, Pu Yang, Mengzhu Yu, Douglas Hungwe, Yuki Yamasaki, Kunio Yoshikawa, Fumitake Takahashi

    Applied Energy   380   125089   2025.2

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apenergy.2024.125089

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  • An efficient recycling of PET bottles: “Participants screening” through the slightest unwillingness toward cap removal Reviewed

    Dilinazi Dilixiati, Shinya Suzuki, Hyuji Yoshida, Nattapon Leeabai, Qiuhui Jiang, Fumitake Takahashi

    Resources, Conservation and Recycling   211   107847   2024.12

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.resconrec.2024.107847

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  • Pedestrian Flow-based Modeling for PET Bottles, Cans, and Other Waste Collection Performances using Smart Recycling Bins Reviewed

    Marina Wada, Masakuni Tsunezawa, Kohei Sugiyama, Fumitake Takahashi

    Journal of the Japan Society of Material Cycles and Waste Management   35   83 - 95   2024.11

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    Authorship：Last author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Waste Management Experts  

    DOI： 10.3985/jjsmcwm.35.83

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  • Understanding global perspectives for the acceptance of community sanitation welfare schemes through a localised qualitative survey in Kho Nagorian, Jaipur, India Reviewed

    Vinayak Gupta, Hazel B. Gonzales, Douglas Hungwe, Yamsomphong Kanokwan, Fumitake Takahashi

    Scientific Reports   14 ( 1 )   16002   2024.7

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Community sanitation is a fundamental human right and need. Every year, as per the World Bank, total cost of providing sanitation services is estimated at around 114 billion USD per year. In India, Swachh Bharat Abhiyan (SBA), a public welfare scheme (PWS), is aimed at addressing community sanitation problems. Despite the successful implementation of SBA, local communities still practise open defaecation. To deduce the behavioural patterns governing communal toilet use, interviews were conducted with the local communities in the Kho Nagorian area of Jaipur, Rajasthan, India. This qualitative survey examined attitudes towards the construction of a toilet, awareness towards the SBA scheme, and the willingness to use excreta-based pit humus. The study then discusses the factors that increase the local community’s willingness to use these toilets. Results show that open defaecation is still prevalent in society. One way to foster the adoption of toilets is that the construction materials should mainly consist of local materials. As a recourse, places of worship could be used to influence people’s perception of hygiene. In addition, community toilets should be cleaned often as well. PWS should not be made accessible at no cost to prevent a sense of entitlement among the people. A small sum should be charged to increase social responsibility towards the PWS. Another way to curb open defaecation is to tap into the sense of entitlement by making effective use of social campaign programs. Further, cross-table analysis revealed that the locals were inclined to use a toilet if they have invested in it. Advertisements were found to be ineffective, and proposals were made to make them effective. These findings aid in understanding public perceptions and can guide the development of public policies. The findings also assist in making tax distribution decisions that reflect public concerns, attitudes, and values.

    DOI： 10.1038/s41598-024-65191-1

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    Other Link： https://www.nature.com/articles/s41598-024-65191-1

  • Oil sludge addition enables prediction of biomass pyrolysis product profiles by synergistic behaviors between biomass components and oil sludge Reviewed

    Hao Xu, Douglas Hungwe, Pu Yang, Mengzhu Yu, Shuo Cheng, Kunio Yoshikawa, Fumitake Takahashi

    Applied Energy   362   123036   2024.5

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apenergy.2024.123036

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  • Fate of fluorine in stratified samples from BGL gasifier at Hailar Chemical Plant, Inner Mongolia: An intermediate process perspective Reviewed

    Yueyuan Zhao, Fumitake Takahashi, Huzhen Liang, Meifen Li, Xia Li

    Fuel   358   130038   2024.2

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.fuel.2023.130038

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  • Insight into the role of SO2 on selenium conversion during adsorption by CaO: Theoretical calculation and experimental study Reviewed

    Mengzhu Yu, Fumitake Takahashi, Yaji Huang, Zihong Li, Hao Xu, Pu Yang, Zhicheng Zhu, Lu Dong, Conghui Fan, Kunio Yoshikawa

    Journal of Hazardous Materials   457   131742   2023.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jhazmat.2023.131742

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  • The integrated study of the effects of infographic design on waste separation behavior and the behavioral outcome implementation on waste composting Reviewed

    Nattapon Leeabai, Chootrakul Siripaiboon, Kor Taweengern, Chanatip Buttanoo, Wasin Sujirapatpong, Disorn Yimyam, Fumitake Takahashi, Chinnathan Areeprasert

    Waste Management   169   276 - 285   2023.9

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

    DOI： 10.1016/j.wasman.2023.07.019

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  • The impact of cognitive aversion toward mercury on public attitude toward the construction of mercury wastes landfill site Reviewed

    Fumitake Takahashi

    Journal of Material Cycles and Waste Management   25   2642 - 2653   2023.9

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    Authorship：Lead author,　Last author,　Corresponding author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10163-023-01690-z

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  • 100-year simulation of mercury emissions from landfilled stabilized mercury waste Reviewed

    Fumitake Takahashi, Akira Sano, Ryuji Yanase, Akito Matsuyama, Masaki Takaoka

    Journal of Material Cycles and Waste Management   25 ( 5 )   2654 - 2667   2023.5

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s10163-023-01691-y

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    Other Link： https://link.springer.com/article/10.1007/s10163-023-01691-y/fulltext.html

  • Motivation to Decrease Discharge Cost Results in Improper Discharge of Regulated Medical Wastes from Small Clinics: Inspectional and Statistical Evidence in the Tokyo Metropolitan Area Reviewed

    Daisuke Sugimoto, Fumitake Takahashi

    JMA Journal (Journal of Japan Medical Association and the Japanese Association of Medical Sciences)   6 ( 2 )   138 - 147   2023.4

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Japan Medical Association  

    DOI： 10.31662/jmaj.2022-0174

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  • A case study of unwillingness toward PET bottle recycling behaviors - a new contingent valuation approach which requests only simple comparison of perceptive stimuli Reviewed

    Dilinazi Dilixiati, Shinya Suzuki, Hyuji Yoshida, Fumitake Takahashi

    Resources, Conservation and Recycling   189   106746   2023.2

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.resconrec.2022.106746

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  • Co-pyrolysis coupled with torrefaction enhances hydrocarbons production from rice straw and oil sludge: The effect of torrefaction on co-pyrolysis synergistic behaviors Reviewed

    Hao Xu, Shuo Cheng, Douglas Hungwe, Kunio Yoshikawa, Fumitake Takahashi

    Applied Energy   327   2022.12

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apenergy.2022.120104

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  • Effect of electron injection on oxidative pyrolysis of cellulose and polypropylene Reviewed

    Takahiro Kobori, Kunio Yoshikawa, Tamer M. Ismail, T. M. Yasser, Abraham Castro García, Kiryu Kanazawa, Fumitake Takahashi

    Applied Energy   326   2022.11

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    Authorship：Last author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apenergy.2022.119944

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  • The effects of compost bin design on design preference, waste collection performance, and waste segregation behaviors for public participation Reviewed

    Nattapon Leeabai, Chinnathan Areeprasert, Chootrakul Siripaiboon, Chanoknunt Khaobang, Danusorn Congsomjit, Fumitake Takahashi

    Waste Management   143   35 - 45   2022.4

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    Authorship：Last author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.wasman.2022.02.018

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  • Effect of electron injected air on the gasification performance of biomass Reviewed

    Tamer M. Ismail, Kunio Yoshikawa, Takahiro Kobori, Yoshinori Kobayashi, Kiryu Kanazawa, Fumitake Takahashi, M. Abd El-Salam

    Applied Energy   311   2022.4

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apenergy.2022.118554

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  • Hydrothermal treatment of banana leaves for solid fuel combustion Reviewed

    Alexander Mosqueda, Katleya Medrano, Hazel Gonzales, Fumitake Takahashi, Kunio Yoshikawa

    Biofuels   12 ( 9 )   1123 - 1129   2021.10

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

    DOI： 10.1080/17597269.2019.1594590

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  • Adsorptive reduction of water hardness by a highly porous and regenerative geopolymer fabricated from coal fly ash waste with low-temperature calcination Reviewed

    Patcharanat Kaewmee, Douglas Hungwe, Fumitake Takahashi

    Environmental Science and Pollution Research   28 ( 39 )   54594 - 54607   2021.10

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s11356-021-14478-1

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    Other Link： https://link.springer.com/article/10.1007/s11356-021-14478-1/fulltext.html

  • Co-combustion of Oil Sludge Char with Raw/Hydrothermally Treated Biomass: Interactions, Kinetics, and Mechanism Analysis Reviewed

    Hao Xu, Shuo Cheng, Douglas Hungwe, Yueyuan Zhao, Kunio Yoshikawa, Fumitake Takahashi

    ACS Omega   6 ( 38 )   24960 - 24972   2021.9

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acsomega.1c03944

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  • Potassium demineralization of coconut fiber via combined hydrothermal treatment and washing: Effect on pyrolysis kinetics, mechanisms, and bio-oil composition Reviewed

    Douglas Hungwe, Saleem Ullah, Petri Kilpeläinen, Sarut Theppitak, Lu Ding, Fumitake Takahashi

    Biomass and Bioenergy   152   106194 - 106194   2021.9

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.biombioe.2021.106194

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  • Experimental investigation on the effect of electron injection into air for thermal decomposition of solid waste Reviewed

    Yasunori Kobayashi, Tamer M. Ismail, Takahiro Kobori, Lu Ding, Kunio Yoshikawa, Kuniomi Araki, Kiryu Kanazawa, Fumitake Takahashi

    Applied Energy   295   116999 - 116999   2021.8

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apenergy.2021.116999

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  • Perceptive preference toward recycling bin designs: Influential design item depending on waste type, the impact of past perception experiences on design preference, and the effect of color design on waste separation Reviewed

    Qiuhui Jiang, Nattapon Leeabai, Dilinazi Dilixiati, Fumitake Takahashi

    Waste Management   127   130 - 140   2021.5

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.wasman.2021.04.037

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  • Prospective utilization of brewers' spent grains (BSG) for energy and food in Africa and its global warming potential Reviewed

    Andile B. Maqhuzu, Kunio Yoshikawa, Fumitake Takahashi

    Sustainable Production and Consumption   26   146 - 159   2021.4

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.spc.2020.09.022

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  • Inhalation bioaccessibility and health risk assessment of flame retardants in indoor dust from Vietnamese e-waste-dismantling workshops. Reviewed International journal

    Tatiya Wannomai, Hidenori Matsukami, Natsuyo Uchida, Fumitake Takahashi, Le Huu Tuyen, Pham Hung Viet, Shin Takahashi, Tatsuya Kunisue, Go Suzuki

    The Science of the total environment   760   143862   2021.2

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    Although bioaccessibility testing is applied worldwide for appropriate chemical risk assessment, few studies have focused on the bioaccessibility of flame retardants (FRs), especially inhalation exposure. This study assessed inhalation exposure to FRs in indoor dust by workers at e-waste-dismantling workshops in northern Vietnam, by using modified simulated epithelial lung fluid (SELF) and artificial lysosomal fluid (ALF). The average mass concentrations of FRs were 130,000 ng/g for workplace dust (n = 3), 140,000 ng/g for floor dust (n = 3), and 74,000 ng/g for settled dust (n = 2), whereas the average bioaccessible concentrations of FRs were 1900, 1400, and 270 ng/g in the SELF condition and 2600, 770, and 490 ng/g in the ALF condition, respectively. Results clearly indicate that the bioaccessible concentrations of FRs are markedly lower than their mass concentrations. Tris(2-chloroethyl) phosphate (TCEP, ~19%), tris(2-chloroisopropyl) phosphate (TCIPP, ~35%), and tris(1,3-dichloroisopropyl) phosphate (TDCIPP, ~22%) showed comparably high bioaccessibility in both SELF and ALF conditions. In contrast, the bioaccessibility of tetrabromobisphenol A (TBBPA, ~20%) was high in the SELF condition, but not in the ALF condition. With regard to the test compounds' physicochemical properties, the inhalation bioaccessibility of FRs in both conditions increased as molecular weight or octanol-water partition coefficient decreased, and it decreased as water solubility decreased. Health risk assessment clearly indicated that the hazard quotient of FRs via inhalation exposure for workers in the e-waste-dismantling workshops was less than 1, suggesting that the inhalation exposure to FRs during indoor dismantling of e-waste at this site was negligible based on the current methodology of non-cancer health risk assessment used in this study.

    DOI： 10.1016/j.scitotenv.2020.143862

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  • The effects of color preference and noticeability of trash bins on waste collection performance and waste-sorting behaviors Reviewed

    Nattapon Leeabai, Chinnathan Areeprasert, Chanoknunt Khaobang, Niti Viriyapanitchakij, Bundit Bussa, Dilixiati Dilinazi, Fumitake Takahashi

    Waste Management   121   153 - 163   2021.2

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.wasman.2020.12.010

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  • Porous and reusable potassium-activated geopolymer adsorbent with high compressive strength fabricated from coal fly ash wastes Reviewed

    Patcharanat Kaewmee, Mengzhu Song, Mitsuyasu Iwanami, Hiroshi Tsutsumi, Fumitake Takahashi

    Journal of Cleaner Production   272   122617   2020.11

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jclepro.2020.122617

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  • Upgrading crude bio-oil by in situ and ex situ catalytic pyrolysis through ZSM-5, Ni<inf>2</inf>Fe<inf>3</inf>, and Ni<inf>2</inf>Fe<inf>3</inf>/ZSM-5: Yield, component, and quantum mechanism Reviewed

    Siyi Li, S. Cheng, Fumitake Takahashi, Jeffrey S. Cross

    Journal of Renewable and Sustainable Energy   12 ( 5 )   053101   2020.9

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

    DOI： 10.1063/5.0009689

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  • Effect of Tire-Char Ash on the Extent of Synergy during CO<inf>2</inf>Cogasification with Hydrochar from Potassium-Rich Coconut Fiber Reviewed

    Douglas Hungwe, Reza Khushbouy, Saleem Ullah, Ding Lu, Kunio Yoshikawa, Fumitake Takahashi

    Energy and Fuels   34 ( 7 )   8110 - 8119   2020.7

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    Authorship：Last author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.energyfuels.0c00895

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  • Application of micro-scale correlation analysis to estimate metal speciation and the matrix in municipal solid waste incineration fly ash Reviewed

    Hiroki Kitamura, Astryd Viandila Dahlan, Yu Tian, Takayuki Shimaoka, Takashi Yamamoto, Fumitake Takahashi

    Journal of Material Cycles and Waste Management   22 ( 4 )   1081 - 1093   2020.7

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10163-020-01001-w

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  • Numerical investigation on the effect of electron injected air for thermal decomposition of solid waste Reviewed

    Tamer M. Ismail, Yasunori Kobayashi, Kunio Yoshikawa, Ding Lu, Takahiro Kobori, Kuniomi Araki, Kiryu Kanazawa, Fumitake Takahashi, M. Abd El-Salam

    Applied Energy   269   115157   2020.7

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

    DOI： 10.1016/j.apenergy.2020.115157

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  • Cognitive aversion of mercury scaled by pairwise comparison method with Thurstone’s law of comparative judgement Reviewed

    Fumitake Takahashi

    Global Environmental Research   24 ( 1 )   45 - 52   2020.7

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    Authorship：Lead author,　Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.57466/ger.24.1_45

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  • Long-term mercury behavior in stabilized/solidified mercury wastes by a simulated landfill experiment using lysimeters Reviewed

    Akira Sano, Keizo Kawase, Ryuji Yanase, Masaki Takaoka, Akito Matsuyama, Fumitake Takahashi, Takafumi Kato

    Global Environmental Research   24 ( 1 )   35 - 43   2020.7

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

    DOI： 10.57466/ger.24.1_35

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  • Bioaccessibility and exposure assessment of flame retardants via dust ingestion for workers in e-waste processing workshops in northern Vietnam Reviewed

    Tatiya Wannomai, Hidenori Matsukami, Natsuyo Uchida, Fumitake Takahashi, Le Huu Tuyen, Pham Hung Viet, Shin Takahashi, Tatsuya Kunisue, Go Suzuki

    Chemosphere   251   2020.7

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1016/j.chemosphere.2020.126632

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  • Stochastic economic analysis of coal-alternative fuel production from municipal solid wastes employing hydrothermal carbonization in Zimbabwe Reviewed

    Andile B. Maqhuzu, Kunio Yoshikawa, Fumitake Takahashi

    Science of the Total Environment   716   135337   2020.5

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.scitotenv.2019.135337

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  • Heterogeneities of fly ash particles generated from a fluidized bed combustor of municipal solid waste incineration Reviewed

    Astryd Viandila Dahlan, Hiroki Kitamura, Yu Tian, Hirofumi Sakanakura, Takayuki Shimaoka, Takashi Yamamoto, Fumitake Takahashi

    Journal of Material Cycles and Waste Management   22 ( 3 )   836 - 850   2020.5

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10163-020-00973-z

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  • Coal fly ash amendment to mitigate soil water evaporation in arid/semi-arid area: An approach using simple drying focusing on sieve size and temperature Reviewed

    Mengzhu Song, Shenglei Lin, Fumitake Takahashi

    Resources, Conservation and Recycling   156   104726   2020.5

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    DOI： 10.1016/j.resconrec.2020.104726

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  • Kinetics and Physicochemical Morphology Evolution of Low and High-Ash Pyrolytic Tire Char during CO<inf>2</inf> Gasification Reviewed

    Douglas Hungwe, Lu Ding, Reza Khoshbouy, Kunio Yoshikawa, Fumitake Takahashi

    Energy and Fuels   34 ( 1 )   118 - 129   2020.1

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    DOI： 10.1021/acs.energyfuels.9b03043

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  • Origins and occurrences of Ti-nanominerals in a superhigh-organic-sulfur coal Reviewed

    Yueyuan Zhao, Huzhen Liang, Fangui Zeng, Yuegang Tang, Litong Liang, Fumitake Takahashi

    Fuel   259   2020.1

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    DOI： 10.1016/j.fuel.2019.116302

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  • Physio-chemical effects of freshwaters on the dissolution of elementary mercury Reviewed

    Rosamond R.M.S. Tshumah-Mutingwende, Fumitake Takahashi

    Environmental Pollution   252   627 - 636   2019.9

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    DOI： 10.1016/j.envpol.2019.05.130

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  • Intra- and inter-particle heterogeneity of municipal solid waste incineration fly ash particles Reviewed

    Hiroki Kitamura, Astryd Viandila Dahlan, Yu Tian, Takayuki Shimaoka, Takashi Yamamoto, Fumitake Takahashi

    Journal of Material Cycles and Waste Management   21 ( 4 )   925 - 941   2019.8

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    DOI： 10.1007/s10163-019-00853-1

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  • Preparation of high surface area sludge-based activated hydrochar via hydrothermal carbonization and application in the removal of basic dye Reviewed

    Reza Khoshbouy, Fumitake Takahashi, Kunio Yoshikawa

    Environmental Research   175   457 - 467   2019.8

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    DOI： 10.1016/j.envres.2019.04.002

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  • The effect of recycling bin design on PET bottle collection performance Reviewed

    Qiuhui Jiang, Takuya Izumi, Hyuji Yoshida, Dilinazi Dilixiati, Nattapon Leeabai, Shinya Suzuki, Fumitake Takahashi

    Waste Management   95   32 - 42   2019.7

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    DOI： 10.1016/j.wasman.2019.05.054

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  • The effects of setting conditions of trash bins on waste collection performance and waste separation behaviors; distance from walking path, separated setting, and arrangements Reviewed

    Nattapon Leeabai, Shinya Suzuki, Qiuhui Jiang, Dilinazi Dilixiati, Fumitake Takahashi

    Waste Management   94   58 - 67   2019.7

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    DOI： 10.1016/j.wasman.2019.05.039

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  • The effect of coal alternative fuel from municipal solid wastes employing hydrothermal carbonization on atmospheric pollutant emissions in Zimbabwe Reviewed

    Andile B. Maqhuzu, Kunio Yoshikawa, Fumitake Takahashi

    Science of the Total Environment   668   743 - 759   2019.6

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    DOI： 10.1016/j.scitotenv.2019.03.050

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  • Promoting global education in science and engineering: An experience in Indonesian high schools

    F. Triawan, M. K. Biddinika, S. Hanaoka, F. Takahashi, M. Aziz

    Journal of Physics: Conference Series   1175 ( 1 )   012167   2019.6

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    DOI： 10.1088/1742-6596/1175/1/012167

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  • Engineering Students' Reference of Low Enthalpy Geothermal Potential in Parangtritis

    Istifari Husna Rekinagara, Rizqi Mahfudz Prasetyo, Barlian Dwinagara, Muhammad Kunta Biddinika, Muhammad Aziz, Fumitake Takahashi

    Journal of Physics: Conference Series   1175 ( 1 )   012187   2019.6

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    DOI： 10.1088/1742-6596/1175/1/012187

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  • Strengthening scientific literacy on nuclear reactor and its application through Nuclear School

    Taxwim, P. I. Wahyono, M. K. Biddinika, S. Widodo, M. Aziz, F. Takahashi

    Journal of Physics: Conference Series   1175   012168   2019.6

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    DOI： 10.1088/1742-6596/1175/1/012168

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  • Understandability and usefulness of news articles in explaining electricity generation from biomass: A comparative study on exact and non-exact science university students

    D. A. Purwani, Z. Mufrodi, A. M. Diponegoro, M. K. Biddinika, F. Takahashi

    IOP Conference Series: Earth and Environmental Science   245 ( 1 )   012048   2019.3

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    DOI： 10.1088/1755-1315/245/1/012048

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  • Excavated waste characteristic from Semarang City landfill sites. Part 1: Physical characteristic

    B. Lokahita, A. M. Abadi, I. N. Hutabarat, L. A. Sembiring, R. T. Andrianingsih, G. Samudro, H. S. Huboyo, M. Aziz, F. Takahashi

    IOP Conference Series: Earth and Environmental Science   245 ( 1 )   012046   2019.3

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    DOI： 10.1088/1755-1315/245/1/012046

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  • The impacts of raw, apatite-synthesized and organic-treated coal fly ash amendment on soil/sand water retention capacity Reviewed

    Shenglei Lin, Mengzhu Song, Hidetoshi Kuramochi, Fumitake Takahashi

    Journal of Arid Land Studies   29 ( 3 )   197 - 215   2019.3

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    DOI： 10.14976/jals.28.3_197

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  • Energy recovery potential from excavating municipal solid waste dumpsite in Indonesia

    Baskoro Lokahita, Ganjar Samudro, Haryono Setiyo Huboyo, Muhammad Aziz, Fumitake Takahashi

    Energy Procedia   158   243 - 248   2019

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    DOI： 10.1016/j.egypro.2019.01.083

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  • Py-GC-MS of refuse materials in waste to energy point of view

    Baskoro Lokahita, Winarto Kurniawan, Muhammad Aziz, Fumitake Takahashi

    Energy Procedia   158   497 - 501   2019

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    DOI： 10.1016/j.egypro.2019.01.142

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  • Dissemination of technology information through YouTube: A case of renewable energy technology Reviewed

    Muhammad Kunta Biddinika, Mochamad Syamsiro, Srikandi Novianti, Bakhtiyor Nakhshiniev, Muhammad Aziz, Fumitake Takahashi

    Telkomnika (Telecommunication Computing Electronics and Control)   17 ( 3 )   1526 - 1538   2019

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    DOI： 10.12928/TELKOMNIKA.V17I3.10124

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  • Potential for thermal conversion of brewer's spent grain into biocoal via hydrothermal carbonization in Africa

    Andile B. Maqhuzu, Kunio Yoshikawa, Fumitake Takahashi

    Energy Procedia   158   291 - 296   2019

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    DOI： 10.1016/j.egypro.2019.01.091

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  • The impacts of raw and apatite-synthesized coal fly ash amendment on water retention capacity focusing on fly ash treatment, water repellency and surface area Reviewed

    Shenglei Lin, Mengzhu Song, Hidetoshi Kuramochi, Fumitake Takahashi

    Journal of Arid Land Studies   28 ( S )   119 - 122   2018.12

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    DOI： 10.14976/jals.28.S_119

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  • Effect of acid-assisted hydrothermal carbonization (HTC) process of tree branches using nitric acid on cadmium adsorption

    Reza Khoshbouy, Rico Lejiu, Fumitake Takahashi, Kunio Yoshikawa

    E3S Web of Conferences   67   2018.11

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    DOI： 10.1051/e3sconf/20186703033

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  • Characterization and application of microalgae hydrochar as a low-cost adsorbent for Cu(II) ion removal from aqueous solutions Reviewed

    Mohammad Saber, Fumitake Takahashi, Kunio Yoshikawa

    Environmental Science and Pollution Research   25 ( 32 )   32721 - 32734   2018.11

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    DOI： 10.1007/s11356-018-3106-8

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  • Uncovering the geo-sites as geo-heritage potential to increase educational and socio-cultural value in Parangtritis, Yogyakarta, Indonesia

    Istifari Husna Rekinagara, Alwin Mugiyantoro, Bellawan Kusuma Aji, Muhammad Kunta Biddinika, Fumitake Takahashi

    AIP Conference Proceedings   2026   2018.10

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    DOI： 10.1063/1.5064995

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  • Study of geothermal direct use for coffee drying at Wayang Windu geothermal field

    Rizqi Mahfudz Prasetyo, Arifin Wicaksono, Muhammad Kunta Biddinika, Fumitake Takahashi

    AIP Conference Proceedings   2026   2018.10

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    DOI： 10.1063/1.5064989

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  • Ultrasonic pretreatment for low-temperature hydrothermal liquefaction of microalgae: enhancing the bio-oil yield and heating value Reviewed

    Mohammad Saber, Abooali Golzary, Hu Wu, Fumitake Takahashi, Kunio Yoshikawa

    Biomass Conversion and Biorefinery   8 ( 3 )   509 - 519   2018.9

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    DOI： 10.1007/s13399-017-0300-8

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  • Impact of secondary generated minerals on toxic element immobilization for air pollution control fly ash of a municipal solid waste incinerator Reviewed

    Hiroki Kitamura, Astryd Viandila Dahlan, Yu Tian, Takayuki Shimaoka, Takashi Yamamoto, Fumitake Takahashi

    Environmental Science and Pollution Research   25 ( 21 )   20700 - 20712   2018.7

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    DOI： 10.1007/s11356-018-1959-5

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  • Estimation of Leachate Generated from Zimbabwe’s Municipal Solid Wastes (MSW) Landfills using a Simple Stochastic Water Balance Model Reviewed

    Andile B. Maqhuzu, Kunio Yoshikawa, Fumitake Takahashi

    Applied Environmental Research   40 - 50   2018.5

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    Landfilling remains the predominant component in the waste management hierarchy of most developing nations. The adoption of emerging waste management technologies and the use of recycling or composting is still in its infancy. Among several inadequacies of current waste management practices in Zimbabwe is the absence of sanitary disposal of municipal solid waste (MSW) in landfills. As a result, the leachate generation rate and leachate characteristics are not routinely monitored. Such information is essential when assessing the impact of leachate on ground and surface water or a facility to which the leachate can be conveyed. Indiscriminate disposal of MSW at unsanitary dumpsites poses a double threat as the discharge of hazardous leachate to potable water sources and emissionsof toxic odours leads to further environmental degradation. Poor waste management practices are compounded by a lack of financial resources and technical capabilities. The financial incapacitation of local authorities is reflected in the fact that there are no reliable statistics on MSW generation and disposal. This lack of comprehensive data has hampered the quantification of MSW and resultant leachate. Therefore, the objectives of this study are twofold. First, we seek to predict the annual quantity of landfilled MSW, and secondly to quantify the leachate flow from Zimbabwe’s landfills. Both were achieved through the use of probability models and a stochastic water balance method supported by 10,000 Monte Carlo iterations. The calculated 90%confidence interval indicates that 13-16 million tonsof MSW havebeen landfilled, with about 41-128 million m3of leachate released since 1980. This is equivalent to a mean of 414,212tons a-1of landfilled MSW and 2.2 millionm3a-1of leachate generated, respectively.

    DOI： 10.35762/aer.2018.40.2.4

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  • Cladophora sp. Biosorption of Metal-contaminated Water Reviewed

    Rosamond R.M.S. Tshumah-Mutingwende, Fumitake Takahashi, Ewa Cukrowska, Julien Lusilao-Makiese

    Applied Environmental Research   17 - 31   2018.5

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    Artisanal and Small-scale Gold Mining (ASGM) activities employing the mercury amal-gamationtechnique have resulted in a significant drop in the quality of water from Ngwabalozi River, Zimbabwe. Mercury levels as high as 0.31 mg L-1have been reported in its waters and the low river pH (pH 3) favors proliferation of microorganisms responsible for methylmercury (a potent neurotoxin) formation. Thus, removal of mercury from contaminated systems is a priority. Therefore, the aim of this study is to develop a low-cost batch reactor for the removal of mercury from mercury contaminated acidic waters tomeet the World Health Organization (WHO) standard of 0.006 mg L-1using Cladophorasp. algae. Optimum reactor parameters were deter-mined by studying the effect of contact time, pH, initial mercury concentration and the presence of competing cations on the adsorption of mercury by Cladophorasp. The mass of algae required in a 1000 Lbatch reactor was then determined at the optimum adsorption conditions for the single and multi-component solution systems. A rapid uptake of mercury by Cladophorasp. algae was displayed. More than 99% of the mercury in solution was removed within the first five minutes of contact and equilibrium was attained after ten minutes. High adsorption capacities (up to 805 mg kg-1at pH 3) were obtained at the optimum mercury concentration of 1.0 mg L-1. Competitive adsorption studies showed that the selectivity of cations by Cladophora sp. was in thefollowing order: Hg2+˃ Fe2+˃ Cu2+˃ Zn2+˃ Co2+. Based on the optimized reactor conditions, nearly 4.8 kg of Cladophorasp. per 1000 Lbatch is required to treat the water in Ngwabalozi River for a mercury only solution. However, for a multi-component system, the mass of Cladophorasp. required was more than triple (17.1 kg) the mass required in a single component solution.

    DOI： 10.35762/aer.2018.40.2.2

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  • Cyanide removal study by raw and iron-modified synthetic zeolites in batch adsorption experiments Reviewed

    Irwin Maulana, Fumitake Takahashi

    Journal of Water Process Engineering   22   80 - 86   2018.4

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    DOI： 10.1016/j.jwpe.2018.01.013

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  • Characterization of potential liquid fertilizers obtained by hydrothermal treatment of chicken feathers Reviewed

    Anissa Nurdiawati, Bakhtiyor Nakhshiniev, Ilman Nuran Zaini, Nurali Saidov, Fumitake Takahashi, Kunio Yoshikawa

    Environmental Progress and Sustainable Energy   37 ( 1 )   375 - 382   2018.1

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    DOI： 10.1002/ep.12688

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  • Energy and resource recovery from Tetra Pak waste using hydrothermal treatment Reviewed

    Baskoro Lokahita, Muhammad Aziz, Kunio Yoshikawa, Fumitake Takahashi

    Applied Energy   207   107 - 113   2017.12

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    DOI： 10.1016/j.apenergy.2017.05.141

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  • Improvement of tar removal performance of oil scrubber by producing syngas microbubbles Reviewed

    Siriwat Unyaphan, Thanyawan Tarnpradab, Fumitake Takahashi, Kunio Yoshikawa

    Applied Energy   205   802 - 812   2017.11

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    DOI： 10.1016/j.apenergy.2017.08.071

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  • CO<inf>2</inf> Cogasification of Coal and Algae in a Downdraft Fixed-Bed Gasifier: Effect of CO<inf>2</inf> Partial Pressure and Blending Ratio Reviewed

    Nasim M.N. Qadi, Ilman Nuran Zaini, Fumitake Takahashi, Kunio Yoshikawa

    Energy and Fuels   31 ( 3 )   2927 - 2933   2017.3

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    DOI： 10.1021/acs.energyfuels.6b03148

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  • Life cycle analysis of low-temperature hydrothermal treatment pathway to produce biodiesel from microalgae Reviewed

    Yamaporn Pongsurapipat, Chinnathan Areeprasert, Fumitake Takahashi, Koji Tokimatsu, Kunio Yoshikawa

    Biofuels   8 ( 2 )   215 - 223   2017.3

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    DOI： 10.1080/17597269.2016.1221297

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  • Co-gasification kinetics of coal char and algae char under CO<inf>2</inf> atmosphere Reviewed

    Nasim M.N. Qadi, Arif Hidayat, Fumitake Takahashi, Kunio Yoshikawa

    Biofuels   8 ( 2 )   281 - 289   2017.3

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    DOI： 10.1080/17597269.2016.1224292

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  • Improvement of the Biomass Tar Removal Capacity of Scrubbing Oil Regenerated by Mechanical Solid-Liquid Separation Reviewed

    Thanyawan Tarnpradab, Siriwat Unyaphan, Fumitake Takahashi, Kunio Yoshikawa

    Energy and Fuels   31 ( 2 )   1564 - 1573   2017.2

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    DOI： 10.1021/acs.energyfuels.6b02252

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  • Effect of steam and oil sludge ash additive on the products of oil sludge pyrolysis Reviewed

    Shuo Cheng, Yuhua Wang, Takahashi Fumitake, Tokimatsu Kouji, Aimin Li, Yoshikawa Kunio

    Applied Energy   185   146 - 157   2017.1

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    DOI： 10.1016/j.apenergy.2016.10.055

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  • Survey on readability of online information for upgrading understandability of biomass energy technology Reviewed

    Muhammad Kunta Biddinika, Ahmad Muhammad Diponegoro, Raden Muhammad Ali, Raden Ibnu Rosyadi, Koji Tokimatsu, Fumitake Takahashi

    Journal of Material Cycles and Waste Management   19 ( 3 )   1069 - 1076   2017

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    DOI： 10.1007/s10163-017-0596-2

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  • Hydrothermal Treatment of Postconsumer Aseptic Packaging Material: Solid Fuel Production and Aluminum Recovery

    Baskoro Lokahita, Kunio Yoshikawa, Fumitake Takahashi

    Energy Procedia   105   610 - 615   2017

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    DOI： 10.1016/j.egypro.2017.03.363

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  • Challenges on the Adoption of Rapid Appraisal Method for Assessment of Online Information on Biomass Energy

    Muhammad Kunta Biddinika, Raden Muhammad Ali, Raden Ibnu Rosyadi, Ahmad Muhammad Diponegoro, Koji Tokimatsu, Fumitake Takahashi

    Energy Procedia   105   3207 - 3212   2017

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    DOI： 10.1016/j.egypro.2017.03.702

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  • Technology for public outreach of fuel oil production from municipal plastic wastes

    Muhammad Kunta Biddinika, Mochamad Syamsiro, Arip Nur Hadiyanto, Zahrul Mufrodi, Fumitake Takahashi

    Energy Procedia   142   2797 - 2801   2017

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    DOI： 10.1016/j.egypro.2017.12.424

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  • Catalytic hydrothermal liquefaction of microalgae using nanocatalyst Reviewed

    Mohammad Saber, Abooali Golzary, Morteza Hosseinpour, Fumitake Takahashi, Kunio Yoshikawa

    Applied Energy   183   566 - 576   2016.12

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    DOI： 10.1016/j.apenergy.2016.09.017

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  • Characterization of chlorine and heavy metals for the potential recycling of bottom ash from municipal solid waste incinerators as cement additives Reviewed

    Boran Wu, Dongyang Wang, Xiaoli Chai, Fumitake Takahashi, Takayuki Shimaoka

    Frontiers of Environmental Science and Engineering   10 ( 4 )   Article No.8   2016.8

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    DOI： 10.1007/s11783-016-0847-9

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  • Evaluation of Oil Sludge Ash as a Solid Heat Carrier in the Pyrolysis Process of Oil Sludge for Oil Production Reviewed

    Shuo Cheng, Fumitake Takahashi, Ningbo Gao, Kunio Yoshikawa, Aimin Li

    Energy and Fuels   30 ( 7 )   5970 - 5979   2016.7

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    DOI： 10.1021/acs.energyfuels.6b00648

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  • Tar removal capacity of waste cooking oil absorption and waste char adsorption for rice husk gasification Reviewed

    Thanyawan Tarnpradab, Siriwat Unyaphan, Fumitake Takahashi, Kunio Yoshikawa

    Biofuels   7 ( 4 )   401 - 412   2016.7

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    DOI： 10.1080/17597269.2016.1147919

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  • Pyrolysis of oil sludge with oil sludge ash additive employing a stirred tank reactor Reviewed

    Shuo Cheng, Yuhua Wang, Ningbo Gao, Fumitake Takahashi, Aimin Li, Kunio Yoshikawa

    Journal of Analytical and Applied Pyrolysis   120   511 - 520   2016.7

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    DOI： 10.1016/j.jaap.2016.06.024

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  • Measuring the readability of Indonesian biomass websites: The ease of understanding biomass energy information on websites in the Indonesian language Reviewed

    Muhammad Kunta Biddinika, Retno Puji Lestari, Bayu Indrawan, Kunio Yoshikawa, Koji Tokimatsu, Fumitake Takahashi

    Renewable and Sustainable Energy Reviews   59   1349 - 1357   2016.6

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    DOI： 10.1016/j.rser.2016.01.078

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  • Effect of emulsified absorbent for tar removal in biomass gasification process Reviewed

    Siriwat Unyaphan, Thanyawan Tarnpradab, Fumitake Takahashi, Kunio Yoshikawa

    Biofuels   7 ( 3 )   233 - 243   2016.5

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    DOI： 10.1080/17597269.2015.1132366

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  • Geochemically structural characteristics of municipal solid waste incineration fly ash particles and mineralogical surface conversions by chelate treatment Reviewed

    Hiroki Kitamura, Takaya Sawada, Takayuki Shimaoka, Fumitake Takahashi

    Environmental Science and Pollution Research   23 ( 1 )   734 - 743   2016.1

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    DOI： 10.1007/s11356-015-5229-5

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  • In situ catalytic conversion of tar using rice husk char/ash supported nickel-iron catalysts for biomass pyrolytic gasification combined with the mixing-simulation in fluidized-bed gasifier Reviewed

    Yafei Shen, Peitao Zhao, Qinfu Shao, Fumitake Takahashi, Kunio Yoshikawa

    Applied Energy   160   808 - 819   2015.12

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    DOI： 10.1016/j.apenergy.2014.10.074

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  • Raw and treated coal fly ash amendment aiming for water holding capacity adjustment of natural soils Reviewed

    Shenglei Lin, Fumitake Takahashi

    Journal of Residuals Science and Technology   12 ( 2 )   73 - 84   2015.4

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    DOI： 10.12783/issn.1544-8053/12/2/6

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  • In-situ catalytic conversion of tar using rice husk char-supported nickel-iron catalysts for biomass pyrolysis/gasification Reviewed

    Yafei Shen, Peitao Zhao, Qinfu Shao, Dachao Ma, Fumitake Takahashi, Kunio Yoshikawa

    Applied Catalysis B: Environmental   152-153 ( 1 )   140 - 151   2014.6

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    DOI： 10.1016/j.apcatb.2014.01.032

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  • Comparison of silica sand properties from Kandal Province, Cambodia and Tapah Perak, Malaysia, and characterization of soda lime silicate glass produced from Cambodian silica sand Reviewed

    E. M. Sereiratana, Khairul Anwar Bin Bharum, Sheikh Abdul Rezan, Radzali Othman, Fumitake Takahashi, Phat Boné

    Advanced Materials Research   858   248 - 253   2014.1

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    DOI： 10.4028/www.scientific.net/AMR.858.248

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  • Metal nickel nanoparticles in situ generated in rice husk char for catalytic reformation of tar and syngas from biomass pyrolytic gasification Reviewed

    Yafei Shen, Chinnathan Areeprasert, Bayu Prabowo, Fumitake Takahashi, Kunio Yoshikawa

    RSC Advances   4 ( 77 )   40651 - 40664   2014

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

    DOI： 10.1039/c4ra07760a

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  • Physicochemical characteristics of typical fly ashes of solid waste incineration plants in China

    Xiaoli Chai, Dongyang Wang, Fumitake Takahashi, Shimaoka Takayuki

    Tongji Daxue Xuebao/Journal of Tongji University   40 ( 12 )   1857 - 1862   2012.12

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  • The weathering of municipal solid waste incineration bottom ash evaluated by some weathering indices for natural rock Reviewed

    Fumitake Takahashi, Takayuki Shimaoka

    Waste Management   32 ( 12 )   2294 - 2305   2012.12

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.wasman.2012.06.009

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  • Enhanced removal of sodium salts supported by in-situ catalyst synthesis in a supercritical water oxidation process Reviewed

    Fumitake Takahashi, Zhirong Sun, Kensuke Fukushi, Yoshito Oshima, Kazuo Yamamoto

    Water Science and Technology   65 ( 11 )   2034 - 2041   2012.6

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2166/wst.2012.109

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  • Atmospheric mercury emissions from waste combustions measured by continuous monitoring devices Reviewed

    Fumitake Takahashi, Takayuki Shimaoka, Akiko Kida

    Journal of the Air and Waste Management Association   62 ( 6 )   686 - 695   2012.6

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1080/10962247.2012.659329

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  • Enhanced oxidation of alkali metal acetate in supercritical water Reviewed

    Fumitake Takahashi, Yoshito Oshima, Kensuke Fukushi, Kazuo Yamamoto

    Chemistry Letters   41 ( 3 )   267 - 269   2012.5

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1246/cl.2012.267

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  • Catalytic oxidation of acetic acid over sodium titanate synthesized hydrothermally in supercritical water Reviewed

    Fumitake Takahashi, Zhirong Sun, Kensuke Fukushi, Yoshito Oshima, Kazuo Yamamoto

    Journal of Supercritical Fluids   61   126 - 133   2012.1

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.supflu.2011.09.012

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  • Dechlorination of municipal solid waste incineration residues for beneficial reuse as a resource for cement Reviewed

    Takayuki Shimaoka, Teppei Komiya, Fumitake Takahashi, Hirofumi Nakayama

    Journal of ASTM International   8 ( 10 )   JAI103671   2011.11

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

    DOI： 10.1520/JAI103671

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  • Size-dependent enrichment of waste slag aggregate fragments abraded from asphalt concrete Reviewed

    Fumitake Takahashi, Takayuki Shimaoka, Kevin Gardner, Akiko Kida

    Journal of Hazardous Materials   194   209 - 215   2011.10

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jhazmat.2011.07.086

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  • Alteration of municipal solid waste incineration bottom ash focusing on the evolution of iron-rich constituents Reviewed

    Yunmei Wei, Takayuki Shimaoka, Amirhomayoun Saffarzadeh, Fumitake Takahashi

    Waste Management   31 ( 9-10 )   1992 - 2000   2011.9

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    DOI： 10.1016/j.wasman.2011.04.021

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  • Mineralogical characterization of municipal solid waste incineration bottom ash with an emphasis on heavy metal-bearing phases Reviewed

    Yunmei Wei, Takayuki Shimaoka, Amirhomayoun Saffarzadeh, Fumitake Takahashi

    Journal of Hazardous Materials   187 ( 1-3 )   534 - 543   2011.3

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

    DOI： 10.1016/j.jhazmat.2011.01.070

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  • Statistical estimate of mercury removal efficiencies for air pollution control devices of municipal solid waste incinerators Reviewed

    Fumitake Takahashi, Akiko Kida, Takayuki Shimaoka

    Science of the Total Environment   408 ( 22 )   5472 - 5477   2010.10

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.scitotenv.2010.07.067

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  • Metal mobilization from municipal solid waste incineration bottom ash through metal complexation with organic and inorganic ligands

    Fumitake Takahashi, Jiro Etoh, Takayuki Shimaoka

    Journal of Material Cycles and Waste Management   12 ( 1 )   1 - 9   2010.4

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s10163-009-0266-0

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    Other Link： http://link.springer.com/article/10.1007/s10163-009-0266-0/fulltext.html

  • Impact of mercury emissions from incineration of automobile shredder residue in Japan Reviewed

    Fumitake Takahashi, Mitsuo Yamagata, Kenji Yasuda, Akiko Kida

    Applied Geochemistry   23 ( 3 )   584 - 593   2008.3

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    DOI： 10.1016/j.apgeochem.2007.12.016

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  • Heavy Metal Mobilization From Municipal Solid Waste Incineration Bottom Ash Through Metal Complexation With Organic and Inorganic Ligands Reviewed

    TAKAHASHI Fumitake, ETOH Jiro, SIMAOKA Takayuki

    Doboku Gakkai Ronbunshuu G   45   433 - 442   2008

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

    Heavy metal removal from municipal solid waste incineration bottom ash using organic and inorganic ligands was investigated. Metal mobilization through the complexation with these ligands was evaluated by its leachability based on Japan leaching test 46. 0.02 mol-N/L of ammonium nitrate, sulfate, acetate, oxalate and citrate solutions with/without 0.02 mol-N/L urea were examined. In all cases, pH of the leachates were within the range from 10.4 to 11.0. Ammonium citrate promoted the leachabilityof Cu, Cr, Mn, P, and Fe. Especially, Fe leachability was increased more than 14 times. Ammonium nitrate accelerated only Mg leachability. Other inorganic and organic ligands showed no significant effect on metal mobilization. Under the condition that ammonium oxalate and citrate were co-existed, mobilization of Cu, Cr, Mn, P, and Fe were prohibited compared to those under the condition that only ammonium oxalate or citrate was used. Although urea itself showed no promotive effect on the leachability for most of metals, it accelerated the complexation of Cu, Cr, Mg, Mn, P and Fe with ammonium citrate or nitrate. Correlation analysis of leaching test results indicated strong relationship among Cr, Cu, P. and Mn. Fe and Mn also showed high correlation. This implies the decomposition of minerals that consisted mainly of these elements and it was supported partially by XRD analysis.

    DOI： 10.11532/proes1992.45.433

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  • Effects of potassium alkalis and sodium alkalis on the dechlorination of o-chlorophenol in supercritical water Reviewed

    Zhirong Sun, Fumitake Takahashi, Yu Odaka, Kensuke Fukushi, Yoshito Oshima, Kazuo Yamamoto

    Chemosphere   66 ( 1 )   151 - 157   2007.1

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    DOI： 10.1016/j.chemosphere.2006.04.038

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  • Composition share of MSW slag in abrasion dust from asphalt concrete that contains MSW slag as aggregates Reviewed

    TAKAHASHI Fumitake, KIDA Akiko, SHIMAOKA Takayuki

    Doboku Gakkai Ronbunshuu G   44   453 - 462   2007

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

    Composition share of municipal solid waste (MSW) slag in abrasion dust from asphalt concrete, whic consists of natural aggregates, MSW slag and asphalt binder, was estimated by two methods. One method is based on different intensities of X-ray diffiaction for quartz between natural aggregates and MSW slag. The other isbased on different concentration of heavy metals among these materials. In the case of fine abrasion dust whose diameter was less than 75μm, both methods estimated that composition share of slag-derived material in the dust is nearly equal or less than that of slag in asphalt concreat. In contrast, opposite results were estimated by boths methods for 150μm to 1.0 mm abrasion dust. This results suggested that MSW slag used in asphalt concrete seemed to be relatively hard to be milled finely compared to natural aggregates.

    DOI： 10.11532/proes1992.44.453

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  • Supercritical water oxidation process utilizing salts contained in liquid waste as catalyst

    F. Takahashi, K. Yamamoto, S. Takenaka, Z. R. Sun, K. Fukushi, Y. Oshima

    Waste Management in Japan   21 - 29   2004

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MISC

Research Projects

  • Micro-emulsion removal with adsorption visualization by porous fibers including structural color

    Grant number：24K15350  2024.4 - 2027.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

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  • Sub-subject I-2: Mercury environmental risk assessment and forecast

    2020.4 - 2023.3

    Ministry of the Environment  Environment research and technology development grant 

    Fumitake Takahashi, Takehiko Hayashi

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  • Effect of apatite-treated coal fly ash amendment on soil water retention capacity and its field test

    Grant number：18H01567  2018.4 - 2021.3

    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)

    Takahashi Fumitake

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    Authorship：Principal investigator 

    Grant amount：\17160000 （ Direct Cost: \13200000 、 Indirect Cost：\3960000 ）

    Coal fly ash management is one of big environmental problems in rich coal resource areas. In addition, these areas are usually under arid/semi-arid climate and thus soil moisture conditioner to remediate soil productivity is strongly demanded. This research aimed to recycle coal fly ash as a soil moisture conditioner. This research used a new approach to measure soil moisture retention in order to simulate soil moisture loss driven by evaporation using simple experiments. Therefore, soil moisture retention measured in this study was evaporation mitigation capacity (EMC), not water holding capacity. This study found that specific surface area, capillary pore-size volume, pF of soil moisture gave no direct impact on EMC. On the other hand, analysis results proposed time-dependency of major controlling factors of EMC. The validation of EMC approach by field-scale tests are recommended.

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  • 廃水銀処理物の長期適正管理のための地上保管対策に関する研究

    Grant number：3-1701  2017.4 - 2020.3

    独立行政法人環境再生保全機構  環境研究総合推進費 

    高岡 昌輝, 日下部武敏, 柳瀬龍二, 高橋史武

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    Authorship：Coinvestigator(s)  Grant type：Competitive

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  • Design analysis of trash containers and design effect on waste segregation and collection

    2015.4 - 2018.3

    Ministry of the Environment  Environment research and technology development grant 

    Fumitake Takahashi, Shinya Suzuki

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  • Coal fly ash recycles as water holding materials targeting for arid and semi-arid areas

    Grant number：15H04067  2015.4 - 2018.3

    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)

    Takahashi Fumitake

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    Authorship：Principal investigator 

    Grant amount：\14950000 （ Direct Cost: \11500000 、 Indirect Cost：\3450000 ）

    The objective of this research project is technology development for coal fly ash recycle as soil water holding material. Conventional water holding capacity, based on water potential in soil matrix, showed that amendment of raw coal fly ash increased water holding capacity. In contrast, water retention capacity, based on resistivity against water loss via evaporation, showed that fly ash amendment decreased water retention capacity. This study found that apatite-synthesis surface modification is effective to increase water retention capacity, in particular at high temperature. Organics content is more significant than surface area for water retention capacity.

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  • Text understandability analysis for public acceptance of social implementation of geothermal power generation projects in Indonesia

    Grant number：15H05228  2015.4 - 2018.3

    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)

    Takahashi Fumitake, Muhammad Kunta Biddinika, Prawisuda Pandji, Ali Raden Muhammad, Rosyadi Raden Ibnu, Diponegoro Ahmad Muhammad, Indrawan Bayu, Diah Ajeng Purwani, Arip Nur Hadiyanto, Mochamad Syamsiro, Zahrul Mufrodi

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    Authorship：Principal investigator 

    Grant amount：\14950000 （ Direct Cost: \11500000 、 Indirect Cost：\3450000 ）

    Even for green energy like geothermal power generation, its social implementation is usually hard owing to difficulty of public acceptance. This study investigated information sources of green energy and information (text) understandability. Although newspaper is one of major information sources for old ages, internet is a major source for young ages less than 35 year-old. A new indicator was designed to evaluate understandability of Indonesian language, Bahasa Indonesia. The indicator suggests that articles of newspapers and web sites on green energy are easy to understand. Difficult words/terms decrease text understandability. However, this study found that technical words/terms were not automatically regarded as difficult.

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  • Geomodification of combustion residues for mineralogical immobilization of heavy metals and accelerated conversion to natural soils

    Grant number：26550059  2014.4 - 2017.3

    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

    Takahashi Fumitake, KITAMURA Hiroki, Dahlan Astryd Viandila

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    Grant amount：\3770000 （ Direct Cost: \2900000 、 Indirect Cost：\870000 ）

    In this study, mineralogical immobilization of toxic elements by secondary mineral formation was investigated for municipal solid waste incineration (MSWI) fly ash and coal fly ash. In the case of MSWI fly ash, soluble elements and heavy metals were immobilized by gypsum and other neoformed minerals. However, heavy metal incorporation to secondary mineral structure like ettringite was not verified. In the case of coal fly ash, toxic elements like fluorine were immobilized by apatite formation. When MSWI fly ash particles were analyzed at micro-scale level, these were found to have complex structures inside each particle body. In addition, MSWI fly ash particles had large heterogeneity not only inside their body but also among fly ash particles although they have been regarded as fine and homogeneous materials. It suggests that successful formation of target secondary minerals might have limited effect on heavy metal immobilization owing to fly ash heterogeneity.

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  • Study on the chemical characteristics of refractory chlorine and biological dechlorination mechanism of bottom ash

    2011.7 - 2012.6

    National Natural Science Foundation of China  Research Fellowship for International Young Scientists 

    Fumitake Takahashi, Xiaoli Chai

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  • Electric-charged cement-based particles for electrostatic corrosion protection

    2011.6 - 2012.3

    Japan Science and Technology Agency  Adaptable and seamless technology transfer program through target-driven R&D 

    Fumitake Takahashi

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  • Psychological factors that make the quality of collected PET bottles worse in PET bottle collection system and some suggestions for collection system improvement

    2011.4 - 2014.3

    Ministry of the Environment  Environment research and technology development grant 

    Fumitake Takahashi, Shinya Suzuki

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  • Biomineralogical treatment of melted waste slag to give additional values for advanced recycle applications

    Grant number：23681014  2011.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (A)  Grant-in-Aid for Young Scientists (A)

    TAKAHASHI Fumitake

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    Authorship：Principal investigator 

    Grant amount：\21450000 （ Direct Cost: \16500000 、 Indirect Cost：\4950000 ）

    To recycle melted waste slag more, it is necessary to give some additional values for market popularity as well as toxic metal immobilization. The objective of this study is to develop easy and cheap technology to give both effects to slag. Organic phosphate treatment synthesized organic apatite layers on slag surface. This immobilized toxic metals and promoted the formation of biofilm. Treated slag is expected to serve as environment remediation medium according to biological activity of some microorganisms in biofilm.

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  • Electrostatically charged cement particles for electrostatic proof of chlorine corrosion and the analysis of its electrostatic charge mechanism

    Grant number：23656281  2011 - 2013

    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

    TAKAHASHI Fumitake

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    Authorship：Principal investigator 

    Grant amount：\3640000 （ Direct Cost: \2800000 、 Indirect Cost：\840000 ）

    Electrostatically charged cement particles could be synthesized by the simple method; Charged cement solidification. Voltage potential differences were ranged from 1 to 12 mV, which was lower than the target value (100 mV). Electrolytically-generated gas inhibited continuous contact between the electrode and cement materials, and thus decreased charging efficiency.
    Electrostatically charged parts were pulverized and their mineralogical compositions were analyzed by XRD. Elemental iron was found in particular in positive-charged parts. Further study is necessary to indentify certain minerals which contributed to electrostatic charge.

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  • Study on the biological dechlorination of incineration bottom ash for the recycle as raw materials of cement production

    2010.7 - 2011.6

    National Natural Science Foundation of China  Research Fellowship for International Young Scientists 

    Fumitake Takahashi, Xiaoli Chai

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  • Value-added recycle of fluorine-containing industrial wastes using biomineralogical reactions

    2009.12 - 2010.11

    Sumitomo Foundation  Environmental research grant 

    Fumitake Takahashi

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  • Recycle of steel slag using biomineralogical reactions

    2009.7 - 2010.6

    Steel Foundation for Environmental Protection Technology  Research grant 

    Fumitake Takahashi

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  • Biomineralogical fluorine immobilization for steel slag recycles

    2009.6 - 2010.3

    Japan Science and Technology Agency  JST innovation seed fund 

    Fumitake Takahashi

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  • Accelerated leaching of heavy metals from Landfilled municipal solid waste incineration bottom ash

    Grant number：21760419  2009 - 2010

    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)

    TAKAHASHI Fumitake

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    Authorship：Principal investigator 

    Grant amount：\4420000 （ Direct Cost: \3400000 、 Indirect Cost：\1020000 ）

    Assisted leaching mechanisms of heavy metals from landfilled municipal solid waste incineration bottom ash was investigated. Citric acid co-existed with urea had the largest effect on the complexation with heavy metals and promoted the leaching of some elements, in particular chromium, copper, iron, and phosphorus. Although fulvic acid generated in landfill site had great complexation capacity with copper cation, it was two orders of magnitude smaller than that of natural fulvic acid. The combination of pH-dependent leaching tests and sequential extraction tests indicated great difference between geochemical simulation results and leaching test results. This suggested that leaching mechanisms were not controlled by some dominant minerals. In addition, it is also concluded that leaching of heavy metals from bottom ash are very complex mechanisms, which consisted of dissolution, precipitation, and conversions of heavy metals to other geochemical forms during leaching.

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  • Correlation between geological weathering indices and environmental hazard mitigation of landfilled MSWI residues

    2008.4 - 2009.3

    Fukada Geological Institute  Fukada research grant 

    Fumitake Takahashi

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  • Clarification of geochemical weathering of municipal solid waste incineration residues and long-term behavior of heavy metal in solid waste landfill

    Grant number：19360242  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    SHIMAOKA Takayuki, OTANI Jun, SAKITA Syogo, WATANABE Kouichiro, ETOH Jiro, MUKUNOKI Toshifumi, TAKAHASHI Fumitake, KOMIYA Teppei

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    Authorship：Collaborating Investigator(s) (not designated on Grant-in-Aid) 

    Grant amount：\20280000 （ Direct Cost: \15600000 、 Indirect Cost：\4680000 ）

    Column experiments simulating a solid waste landfill were carried out. The pore structure and its change of solid waste layer were quantitatively clarified by using soil test, leachate quality analysis and X-ray CT, and the numerical simulation of water transport in a landfill was enabled, which considered pore structure data derived from X-ray CT images. The long-term behavior of heavy metals in carbonation reaction in a landfill and the influence of the chemical combination form of heavy metals and pH on heavy metal behavior were examined, and valuable information for predicting the long-term behavior of heavy metal was acquired.

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