| Project/Area Number |
02650387
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
都市工学・衛生工学
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| Research Institution | Setsunan University |
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Principal Investigator |
KANEKO Mitsumi Setsunan University, Department of Engineering, Professor, 工学部, 教授 (50083738)
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| Co-Investigator(Kenkyū-buntansha) |
NAMBU Toshihiro Health Research Institute of Gifu Prefecture, Phisico-Chemical 1st Section, Seni, 理化学第一部, 専門研究員
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1991: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1990: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Virus / E. coli phage / Submerged Contact media Process / Net Plate / Wastewater Disposal Tank / 大腸菌フア-ジ / 小規模汚水処理装置 |
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| Research Abstract |
Virus removal has become big problems in water sanitation. Small treatment process with net like contact media was investigated for its virus removal ability. This study was divided into four parts ; (1) Mixing condition in disinfection process was examined, because small plant is difficult to equiped with the apparatus which can mix well disinfectant with water. It was clearly shown that inactivation of microorganisms was strongly influenced by mixing condition. (2) Virus detection method was examined. The method which can detect viruses from waters of low concentration in viruses has been developed. (3) More than 99% of viruses could be removed by the process with net like contact media under low BOD load, showing that the process studied here might be used for tertiary wastewater treatment. (4) Experiments using the model of small treatment plant in use showed that poliovirus of around 99% was removed under BOD load applied to plants treating domestic wastewater.
E. coli phage Qbeta could increase in number in the treatment process, which decrease the value of E. coli phage as indicator for virus pollution.
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