Oxygen enhancement of the mixed discharge from the desalination plant and sewage plant and restoration of the coastal ecosystem
| Project/Area Number |
21560576
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MOROOKA Shigeharu 福岡大学, 工学部, 教授 (60011079)
WATANABE Ryoichi 福岡大学, 工学部, 准教授 (50299541)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 高酸素 / 博多湾 / 下水処理 / 海水淡水化 / 貧酸素 |
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| Research Abstract |
Field observation of the salinity distribution and field experiments to enhance the discharge DO concentration were carried out aiming to reduce hypoxia and restoring of the bottom ecosystem. As the results, oversaturated DO discharge system was established. DO concentration was enhanced from 5.7mgL^<-1> to about 9mgL^<-1> at the mixture tank. Field observation during two days operation of the system revealed that bottom DO concentration was raised continuously and discharged mixed water spread about 1000 m along the shelf, about 300m transverse direction and about 1m depth from the bay bottom.
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Report
(4 results)
Research Products
(17 results)
