Record Display for the EPA National Library Catalog

RECORD NUMBER: 27 OF 31

OLS Field Name OLS Field Data
Main Title Virus removal during conventional drinking water treatment /
Author Gerba, Charles P., ; Rose, J. B. ; Toranzos, G. A. ; Singh, S. N. ; Kelley, L. M.
Other Authors
Author Title of a Work
Rose, Joan Bray.
Akin, Elmer W.
Hoff, John C.
CORP Author Arizona Univ., Tucson. ;Texas Univ. Health Science Center at Houston.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1985
Report Number EPA/600/1-85/017
Stock Number PB85-227510
OCLC Number 48625019
Subjects Water--Purification.
Additional Subjects Viruses ; Water treatment ; Microorganisms ; Enteroviruses ; Potable water ; Clarification ; Filtration ; Chlorination ; Drinking water ; Rotaviruses
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB85-227510 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 64 pages : illustrations ; 28 cm
Abstract
The reduction of enteroviruses and rotaviruses was studied at a full scale 205 mgd water treatment plant involving chemical clarification, 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 pre-chlorination/flocculation and filtration, while a significant reduction of rotaviruses occurred during pre-chlorination/flocculation and final chlorination. Enteroviruses or rotaviruses occurred in 24% of the finished water samples containing chlorine levels of >0.2 mg/L, and meeting coliform bacteria (1/100 ml and turbidity (1 NTU)) standards. The results of the study indicate that finished water having measurable levels of free residual chlorine and meeting standards for coliform bacteria, and turbidity cannot be assumed to be virus free.
Notes
"June 1985." Caption title. "Elmer W. Akin and John C. Hoff, Project Officers." Sponsored by EPA At head of title: Project Summary. Microfiche.