2015 Fiscal Year Annual Research Report
排水処理施設からの亜酸化窒素生成抑制を担う細菌群の生理生態の解明とその応用
| Project/Area Number |
14J08245
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
宋 康 東京農工大学, 大学院工学研究院, 特別研究員(PD)
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| Project Period (FY) |
2014-04-25 – 2016-03-31
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| Keywords | Nitrous oxide / GHG mitigation / wastewater treatment / Nitrous oxide reduction / Gene expression level / anaerobically digested / sludge dewaterability / zero valent iron |
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| Outline of Annual Research Achievements |
This year, I got Ph.D degree under the title as “Significance of bacteria community and operation conditions on nitrous oxide emission from a biological nitrogen removal system”.The basically idea of this study is to accelerate nitrous oxide (N2O) reduction. In this study, my achievements are: (1) I showed nosZ mRNA as a good indicator for N2O-reducing activity; (2) I identified N2O-reducing bacteria in our reactors’ system; (3) Combined the long-term reactor’s operation and functional analysis, I suggested optimal operation conditions for low N2O emission.
After I got Ph.D degree from Tokyo University of Agriculture and Technology, I visited to the Advanced Water Management Centre (AWMC), University of Queensland (UQ), which is a world-class research center about wastewater treatment technology. What I have learned there are: (1). Using free nitric acid (FNA)-based technology to achieve simultaneous nitrification and denitrification (SND) during biological nitrogen removal process. (2). Improving dewaterability of anaerobically digested sludge by innovative methods (combined conditioning with persulfate and zero-valent iron; combined zero valent iron and hydrogen peroxide conditioning).
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| Research Progress Status |
27年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
27年度が最終年度であるため、記入しない。
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