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RECORD NUMBER: 3 OF 6

OLS Field Name OLS Field Data
Main Title Effect of Separation Processes on the Formation of Brominated THMs.
Author Summers, R. S. ; Benz, M. A. ; Shukairy, H. M. ; Cummings., L. ;
CORP Author Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering. ;Bayer A.G., Leverkusen (Germany, F.R.). ;Montgomery (James M.) Consulting Engineers, Inc., Pasadena, CA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher cJan 93
Year Published 1993
Report Number EPA-R-816700; EPA/600/J-94/148;
Stock Number PB94-157294
Additional Subjects Halomethanes ; Bromine organic compounds ; Water pollution control ; Potable water ; Water treatment ; Separation ; Disinfection ; Byproducts ; Organic matter ; Granular activated carbon treatment ; Adsorption ; Activated carbon treatment ; Anion exchanging ; Membranes ; Filtration ; Performance evaluation ; Reprint ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB94-157294 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 10p
Abstract
Separation treatment processes are being investigated as a way to control the formation of disinfection by-products (DBPs) in finished waters. These processes remove natural organic matter before a disinfectant is applied, thus limiting the amount of material available to form DBPs. Four separation processes were examined in the study--granular activated carbon adsorption, powdered activated carbon adsorption, anion exchange, and membrane filtration--using two waters. Results showed that (1) as the dissolved organic carbon (DOC) decreased, the chlorination of diluted organic matter solutions held at constant bromide concentrations yielded a shift to brominated trihalomethanes (THMs); (2) at low DOC concentrations, the percentage of formed brominated trihalomethanes was higher in treated effluent than in influent water; and (3) the processes were most effective for controlling the formation of chloroform and least effective for controlling the formation of bromoform. Based on these results, it can be concluded that effective control of brominated THMs by these separation processes may be difficult for waters containing significant concentrations of bromide.