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Main Title Virus sensitivity to chlorine disinfection of water supplies /
Author Engelbrecht, Richard S., ; Weber, Michael J. ; Schmidt, Carla A. ; Salter, Brenda L.
Other Authors
Author Title of a Work
Weber, Michael J.,
Schmidt, Carla A.,
Salter, Brenda L.,
Engelbrecht, Richard S.
CORP Author Illinois Univ. at Urbana-Champaign. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; for sale by the National Technical Information Service,
Year Published 1978
Report Number EPA-600/2-78-123; EPA-R-803346; PB288510
Stock Number PB-288 510
OCLC Number 04441580
ISBN pbk.
Subjects Chlorine and derivatives as disinfectants ; Disinfection and disinfectants ; Virology--Research ; Sewage--Purification--Chlorination ; Water--Purification--Chlorination
Additional Subjects Viruses ; Disinfection ; Chlorination ; Sensitivity ; Potable water ; Efficiency ; Sterlization ; Water treatment ; Enteroviruses ; pH ; Polioviruses ; Coxsackie viruses ; ECHO viruses ; Water pollution ; Temperature ; Genetics ; Picornaviruses ; Drinking water
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  QR478.C4V57 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-78-123 Headquarters Library/Washington,DC 03/08/2016
ELBD ARCHIVE EPA 600-2-78-123 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-2-78-123 AWBERC Library/Cincinnati,OH 02/14/2003
ERAD  EPA 600/2-78-123 Region 9 Library/San Francisco,CA 09/24/2012
ESAD  EPA 600-2-78-123 Region 10 Library/Seattle,WA 11/07/1997
NTIS  PB-288 510 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 44 pages : illustrations, figures, tables ; 28 cm.
The efficiency of chlorine disinfection of viruses is likely to be affected both by the type of virus and by the nature of the suspending medium. The purpose of this study was to examine the effects of virus type, suspending medium and the interaction of these, on the kinetics of inactivation by chlorine. Six enteric viruses (picornaviruses) as well as SV40 and Kilham rat virus were studied under carefully controlled laboratory conditions. It was found that the different virus types showed a wide range of sensitivity to chlorine disinfection. The rate of inactivation was greater at pH 6 than at pH 10; however, the relative sensitivities of the different viruses were affected differently by changes in pH. This indicates an effect of pH both on the species of chlorine and on the sensitivity of the virus. The presence of dissolved ions also had an effect on sensitivity to chlorine. The possible effects of virus aggregation and the appearance of chlorine resistant mutants were investigated as well. The results indicate that it will be difficult to obtain a single virus type which will serve as a suitable indicator of disinfection under all circumstances.
"August 1978." "Project Officer: John C. Hoff." Includes bibliographical references (pages 42-43). U.S. Environmental Protection Agency Contract No. Contract Number: R-803346, Program Element No. ICC 614.