| Budget Amount *help |
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2009: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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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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