2022 Fiscal Year Final Research Report
Formation of microbial community in water distribution systems via biological activated carbon treatment
| Project/Area Number |
20K14861
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 22060:Environmental systems for civil engineering-related
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 生物活性炭処理 / 動物プランクトン / 漏出微生物 / オゾン処理 |
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| Outline of Final Research Achievements |
Biological activated carbon (BAC) treatment is a critical unit operation in advanced water purification processes. However, despite its purification ability by microbes, there is a risk that microorganisms that have grown in the activated carbon bed may leach and persist in the purified water. This study aimed to investigate the presence of zooplankton and their symbiotic bacteria in BAC-treated water, their susceptibility to chlorine disinfection, and the composition of the symbiotic bacterial community using both culture-based and molecular techniques.
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| Free Research Field |
環境工学、環境微生物学、水処理工学
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| Academic Significance and Societal Importance of the Research Achievements |
生物活性炭処理は必然的に微生物を繁殖させているという側面があり、微生物の漏出には十分留意しておく必要がある。これまで活性炭層から動物プランクトンが漏出することは指摘されてきたものの、それらと共存することで塩素消毒から保護される細菌群の存在について調べられた例は皆無である。本研究はこのような微生物群集の漏出実態や制御方策について初めて検討するものであり、学術的新規性や工学的意義が大きい。
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