Development of biological treatment method of hydrazine-containing wastewater using anammox sludge
Project/Area Number |
16K12622
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Environmental engineering and reduction of environmental burden
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Research Institution | Sojo University |
Principal Investigator |
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Project Period (FY) |
2016-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | anammox / ヒドラジン / 生物処理 / ヒドラジン生物処理 / ヒドラジン代謝 / ヒドラジン不均化 / 汚染質除去 |
Outline of Final Research Achievements |
To develop the biological treatment method of hydrazine-containing wastewater, we conducted experiments to clarify (1) how much hydrazine can be removed using anammox sludge and (2) what is the metabolic system of hydrazine removal. As a result, the upper limits of hydrazine concentration, hydrazine loading rate and hydrazine removal rate were 60 mg-N/L, 0.45 kg-N/m3/day, and 0.40 kg-N/m3/day, respectively. It was inferred that the metabolism of hydrazine removal was composed of four reactions, reduction of nitrate to nitric oxide, synthesis of hydrazine with nitric oxide and ammonium, oxidation of hydrazine to molecular nitrogen, and disproportionation of hydrazine to ammonium and molecular nitrogen.
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Report
(3 results)
Research Products
(3 results)