Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 689

OLS Field Name OLS Field Data
Main Title Alternative Oxidant and Disinfectant Treatment Strategies for Controlling Trihalomethane Formation.
Author Singer, P. C. ;
CORP Author North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1988
Report Number EPA/600/2-88/044;
Stock Number PB88-238928
Additional Subjects Water treatment ; Oxidation ; Disinfectants ; Concentration(Composition) ; Monitoring ; Substitutes ; Chemical analysis ; Performance evaluation ; Cost analysis ; Halomethanes ; Water treatment plants ; Pretreatment(Water) ; Total organic halogens
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB88-238928 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/29/1988
Collation 308p
Abstract
To comply with the maximum contaminant level (MCL) for total trihalomethanes (TTHM), many utilities have modified their pre-oxidation and disinfection practices by switching to alternative oxidants and disinfectants in place of free chlorine. To evaluate the impact of these changes, a research project was initiated to study several water treatment plants that had recently adopted the use of chlorine dioxide, ozone, potassium permanganate, or chloramines to partially or fully offset the use of free chlorine. The results of the study showed that total organic halide (TOX) formation paralleled THM formation at all eight of the utilities investigated. The alternative pre-treatment oxidants and disinfectants were depleted rapidly as a consequence of the high TOC concentrations in the waters examined. This implies that residual oxidants and disinfectants and oxidation effectiveness to be reduced.