| 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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| 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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