| Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2014: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
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| Outline of Final Research Achievements |
We succeeded in establishment of a single-stage partial nitritation and anammox process by membrane bioreactor (PNA by MBR). The strategy is that partial-nitritation (PN) process was established by inoculating ammonium-oxidizing bacteria (AOB) at first and subsequently PNA process was established by inoculating anammox bacteria. As a result, establishment of PNA by MBR was succeeded and maximum-nitrogen removal rate and maximum-nitrogen removal efficiency of 1.45 kg-N/m3/d and 89.5% were achieved. The results of bacterial community analysis indicates that genus Nitrosomonas and genus Nitrosospira species are dominant as ammonium oxidizing bacteria, and Candidatus Brocadia”species were dominant.
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