| Project/Area Number |
22380131
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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 |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Ehime University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAYA Yuji 愛媛大学, 農学部, 客員教授 (00036427)
FUJIWARA Taku 高知大学, 自然科学系, 教授 (10314981)
KURODA Hisao 茨城大学, 農学部, 教授 (20205256)
KATO Tasuku 東京農工大学, 農学研究院, 准教授 (10302332)
SAITO Hirotaka 東京農工大学, 農学研究院, 准教授 (70447514)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Keywords | 集落排水 / 医薬品汚染 / 水田 / 生活排水 / 水環境 |
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| Research Abstract |
In this research, it was suggested that the rural sewerage treatment plants have high removal function of pharmaceuticals, especially for the plants employing the activated sludge process. While the various kinds of pharmaceuticals were detected in the treated wastewaters in the actual rural sewerage treatment plants, the concentrations were not over the critical level for aquatic ecosystem. Ketoprofen (nonsteroidal anti-inflammatory drug) had the highest risk, however, in 15 pharmaceuticals measured in this research. The paddy field which irrigated with treated wastewater had the purification function for the almost all of the 15 pharmaceuticals including Ketoprofen. In the investigated field, the pharmaceuticals accumulation with time in paddy soil and the pharmaceuticals movement to the edible parts of rice plant were not observed. These results suggest that the non-diluted reclaimed wastewater irrigation for paddy is valuable technique for environmental protection for aquatic ecosystem surrounding wastewater treatment plants.
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