Record Display for the EPA National Library Catalog

RECORD NUMBER: 261 OF 1368

OLS Field Name OLS Field Data
Main Title Correlations Among Trihalomethane (THM) and Total Organic Halide (TOX) Formation in Water Treatment Facilities.
Author Singer, P. C. ; Chang, S. D. ;
CORP Author North Carolina Univ. at Chapel Hill.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1985
Report Number EPA/600/D-86/203;
Stock Number PB87-102349
Additional Subjects Chlorination ; Water treatment ; Water pollution ; Humus ; Chemical reactions ; Halogen organic compounds ; Methane ; pH ; Chlorine organic compounds ; Humic acids ; Acetic acid ; Correlation ; Surface waters ; Absorption ; Coagulation ; Filtration ; Sedimentation ; Reprints ; Raw water ; Halomethane
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB87-102349 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 19p
Abstract
In determining the extent to which correlations exist among certain parameters (TOX, TTHM, TOC, UV absorbance, THM formation potential, and TOX formation potential), samples of raw water and treated water, including samples from the distribution systems, were collected from 12 full-scale systems in six states. The ratio of TTHM/TOX in surface waters treated by conventional coagulation, sedimentation, and filtration, at near neutral pH values (approximately 3:1), corresponds closely with the THMFP/TOXFP ratio in raw waters after a chlorine contact of 7 days at pH 7.