Record Display for the EPA National Library Catalog


Main Title Isolating Viruses from Finished Water.
Author Rose, J. B. ; Gerba, C. P. ; Singh, S. N. ; Toranzos, G. A. ; Keswick, B. ;
CORP Author Arizona Univ., Tucson. ;Texas Univ. Health Science Center at Houston.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1986
Report Number EPA-R-809331; EPA/600/J-86/060;
Stock Number PB86-208782
Additional Subjects Viruses ; Water treatment ; Enteroviruses ; Flocculating ; Reduction ; Filtration ; Clarification ; Chlorination ; Standards ; Coliform bacteria ; Turbidity ; Reprints ; Rotaviruses
Library Call Number Additional Info Location Last
NTIS  PB86-208782 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
The reduction of enteroviruses and rotaviruses was studied at a full scale 205 mgd water treatment plant involving chemical flocculation, sand filtration and chlorination. Reduction of enteroviruses and rotaviruses averaged 81% and 93%, respectively, for the complete treatment process. The greatest reduction of enteroviruses occurred during prechlorination/flocculation and filtration, while the greatest reduction of rotaviruses occurred during pre-chlorination/clarification and final chlorination. Although major plant deficiencies may have been responsible for occurrence of viruses in the finished water, the results of the study indicate that finished water having measureable levels of free residual chlorine and meeting standards for coliform bacteria and turbidity cannot be assumed to be virus free.