This study reports on the occurrence of enteric viruses within a full-scale 205 mgd (776 ML/d) water treatment plant following each treatment process, including prechlorination-flocculation, sand filtration, and chlorination. Reduction of enteroviruses and rotaviruses averaged 81 and 93 percent, respectively, for the complete process. The highest removal of enteroviruses occurred during prechlorination-clarification and filtration, and the highest reduction in rotaviruses occurred after prechlorination-clarification and postchlorination of the finished water. Enteroviruses or rotaviruses could be isolated from 24 percent of the finished water samples containing
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Edition: Vol. 78 - No. 1 Published: 01/01/1986 Number of Pages: 6File Size: 1 file , 1.4 MB