| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2012: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Outline of Final Research Achievements |
Recombinant norovirus VLP and some waterborne pathogenic viruses (poliovirus and adenovirus) were artificially added to a wide variety of raw water for drinking water that were obtained from actual drinking water treatment plants in Japan, and virus removal during conventional coagulation-sedimentation treatment was investigated. The removals of the waterborne pathogenic viruses were found to be 0-2.5 logs, which were lower than that of bacteriophage MS2 but higher than that of bacteriophage phiX174. The observations suggest that not MS2 but phiX174 could be a conservative surrogate of the waterborne pathogenic viruses. However, further study is still required for the suggestion by using a wide variety of treatment conditions.
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