N_2O production mechanism due to the variation of nitrification potential
| Project/Area Number |
22760405
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| Research Category |
Grant-in-Aid for Young Scientists (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 | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 一酸化二窒素 / 標準活性汚泥法 / 硝化 / 数学モデル / アンモニア酸化量 / 最大アンモニア酸化速度 / 亜硝酸 / 最大硝化速度 / キノン |
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| Research Abstract |
N_2O production is controlled by initial quinone content and nitrite concentration.
N_2O consumption rate of N_2O-reducing bacteria which is enriched using municipal wastewater is 242-692 times as much as N_2O production rate of activated sludge in a municipal wastewater treatment plant.
N_2O production in municipal wastewater treatment plants is also explained by the amount of ammonia oxidation.
A simple model for N2O prodution based on the amount of ammonia oxidation by AOB can predict N_2O behavior in municipal wastewater treatment plants.
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Report
(3 results)
Research Products
(17 results)
