Record Display for the EPA National Library Catalog

RECORD NUMBER: 269 OF 847

OLS Field Name OLS Field Data
Main Title Effect of Bromide Ion on Formation of HAAs during Chlorination.
Author Pourmoghaddas, H. ; Stevens, A. A. ; Kinman, R. N. ; Dressman, R. C. ; Moore., L. A. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.
Publisher Jan 93
Year Published 1993
Report Number EPA/600/J-94/149;
Stock Number PB94-157286
Additional Subjects Water treatment ; Potable water ; Bromides ; Chlorination ; Water pollution ; Byproducts ; Disinfection ; Halomethanes ; Statistical analysis ; Safe Drinking Water Act ; Water chemistry ; Ions ; pH ; Reaction kinetics ; Reprints ; Haloacetic acids
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB94-157286 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 8p
Abstract
The concentration of bromide in raw water is a significant factor in the formation of chlorination by-products in finished drinking water. A two-block full-factorial matrix was designed to statistically evaluate the influence of bromide ion on the formation and speciation of haloacetic acids (HAAs) during chlorination and the effects of independent variables, including pH, reaction time, and chlorine dosage. Almost all of the independent variables were positively correlated with the formation of HAAs. Bromide ion was shown to shift the distribution of HAAs (as well as trihalomethanes) to more brominated species. Not only were purely brominated acetic acids formed, but also mixed bromine and chlorine species--which were measured for the first time.