| Project/Area Number |
23656331
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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 |
Civil and environmental engineering
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| Research Institution | Hiroshima University |
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Principal Investigator |
OHASHI Akiyoshi 広島大学, 大学院・工学研究院, 教授 (70169035)
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| Project Period (FY) |
2011
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| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Keywords | 環境保全 / リン / 資源 / リン蓄積細菌 / 海水 / 微生物群集 / 回収 |
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| Research Abstract |
The objective of this study is to develop a new biotechnology to condense low phosphate concentration solutions for phosphate recovery from seawater containing very great abundance of phosphate, based on the principle of biological phosphate removal applied to wastewater treatments. A phosphate recovery experiment was conducted using a DHS reactor with a synthetic seawater. The results show that 12 hour cycle of 3 hour anaerobic and 9 hour aerobic conditions is most appropriate to dominate polyphosphate accumulating bacteria, and demonstrated that the new technology would concentrate seawater to more than 100 mgP. l^<-1>
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