1995 Fiscal Year Final Research Report Summary
Biological decomposition of agricultural chemicals in water resources
| Project/Area Number |
06454034
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Civil and environmental engineering
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
SUMITOMO Hisashi Kyoto University, Faculty of Engineering Professor., 工学部, 教授 (20026040)
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| Co-Investigator(Kenkyū-buntansha) |
OKUMURA Mitsuji Fukui industrial special School, lecturer, 土木工学, 講師 (70177187)
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| Project Period (FY) |
1994 – 1995
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| Keywords | biological treatment / pesticide, hebricide / CAT / CNP / byproducts |
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| Research Abstract |
CAT and CNP were selected as target chemicals in this study, becase these two were newly set as toxic chemicals in the drinking quality standards. Most important point in this study is to assess the toxcic levels between pre and postconditions of the decomposition. Even if decomposition is occurred, it must have no significance when the level is main tained. From experiments with Lake Biwa water, by-products were found, and specific microarganisms to decompose CAT and CNN were separated. However, these were not identified So far, and the toxic level after the decomposition was left unsolved for the next step of the study.
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