2017 Fiscal Year Final Research Report
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 |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | Sojo University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | anammox / ヒドラジン / 生物処理 |
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| 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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| Free Research Field |
微生物遺伝子工学
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