2013 Fiscal Year Final Research Report
Application of a collaborative mixed culture with freshwater- and seawater-anammox bacteria to nitrogen removal technology
| Project/Area Number |
23560647
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
森村 茂 熊本大学, 大学院自然科学研究科, 准教授 (20230146)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 環境保全 / 環境微生物 |
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| Research Abstract |
We have successfully established a collaborative mixed culture with freshwater and seawater anammox bacteria, and revealed nitrogen removal property and bacterial community of it. The biomasses of marine anammox bacterial culture and fresh-water anammox bacterial culture were inoculated into a packed bed reactor and continuously cultured under the three kinds of condition of marine, fresh-water, intermediate of marine and fresh-water. A typical anammox reaction was confirmed within 5 days under all the conditions, and stable nitrogen removal performance at 0.1 g/L/d of nitrogen removal rate. The anammox biomass cultured in a continuous stirred-tank reactor under the intermediate condition was used for bacterial community analysis. The abundance ratio of marine- and fresh-water- anammox bacteria was 30:1, suggesting the change of anammox bacterial abundance.
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