2013 Fiscal Year Final Research Report
Anaerobic biodegradation of methyl-group organics on industrial wastewater treatment
| Project/Area Number |
23360235
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | The University of Kitakyushu |
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Principal Investigator |
YASUI Hidenari 北九州市立大学, 国際環境工学部, 教授 (70515329)
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| Co-Investigator(Kenkyū-buntansha) |
KADOKAMI Kiwao 北九州市立大学, 国際環境工学部, 教授 (60433398)
TERASHIMA Mitsuharu 北九州市立大学, 国際環境工学部, 講師 (60706969)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 電子産業 / 超純水 / 嫌気性生物反応 |
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| Research Abstract |
Two kinds of anaerobic microorganisms decomposing Tetra-methyl-ammonium hydroxid (TMAH) and isopropyl alcohol (IPA) to methane were enriched from the digestate of activated sludge at a municipal wastewater treatment plant. According to the chemical analysis of the biodegradation pathway for TMAH, one unit of methyl-group was sequentially uncoupled from TMAH and ammonium was eventually formed whilst producing methane gas from the methyl-group (methanol). For the degradation of IPA, intermediates of acetone, acetate and hydrogen were detected. The production of methane was thought to be attributed to the acetoclastic methanogens and hydrogenotrophic methanogens. Based on the kinetics obtained from the experiment, process maps were build and mathematical models were elaborated applying a concept of Activated Sludge Models developed by the task groups of International Water Association. The model structure was expected to use for a platform to design the wastewater treatment processes.
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Research Products
(21 results)
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[Journal Article] A Modified Anaerobic Digestion Process with Chemical Sludge Pre-treatment and its Modelling2014
Author(s)
Hai, M.H., Sakamoto,S., Le, V.C., Kim, H.S., Goel, R., Terashima, M., Yasui, H
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Journal Title
Wat.Sci.Tech
Volume: Vol.69, No.11
Pages: 350-2356
DOI
Peer Reviewed
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[Journal Article] Tracer Experiment and RTD Analysis of DAF Separator with Bar-Type Baffles2013
Author(s)
Terashima, M., Iwasaki, M., Yasui, H., Goel, R., Suto, K. and Inoue, C
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Journal Title
Wat.Sci.Tech
Volume: Vol.63 , No.5
Pages: 942-947
DOI
Peer Reviewed
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[Presentation] A Kinetic Model for Anaerobic biodegradation of Tetramethylammonium hydroxide (TMAH)2013
Author(s)
Tsunoda, K., Yoshinaga, K., Terashima, M., Goel, R., Yasui, H
Organizer
Proc. of 5th IWA-ASPIRE Conference & Exhibition
Place of Presentation
Daejeong, Korea
Year and Date
20130908-12
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