2011 Fiscal Year Final Research Report
Analysis of Influence of Complex Water System on Material Cycle in the Osaka Bay Basin
| Project/Area Number |
21360236
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hydraulic engineering
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| Research Institution | Osaka University |
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Principal Investigator |
NISHIDA Syuuzou 大阪大学, 大学院・工学研究科, 教授 (40172663)
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| Co-Investigator(Kenkyū-buntansha) |
IRIE Masayasu 大阪大学, 大学院・工学研究科, 講師 (00379116)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 大阪湾 / 流域圏 / 流入負荷 / 物質輸送 / 栄養塩 / 上下水道 / シミュレーション |
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| Research Abstract |
To obtain a closer estimate of a amount of inflow loads, field surveys including rainy day surveys were carried out in rivers and sewerage treatment plants. The inflow load from the Neya River sub-basin showed largest amount, about 40% of total inflow load to Osaka Bay. Inflow loads due to floods and CSOs have a significant impact on nutrient cycle in the bay. Numerical results showed that future improvement of treated water quality was not effective in the reduction of organic pollution.
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