Bromide's effect on DBP formation, speciation, and control; Part 1: Ozonation
- Univ. of Cincinnati, OH (United States)
- Environmental Protection Agency, Cincinnati, OH (United States). Drinking Water Research Div.
The effect of variable ozone dosage and bromide concentration on the formation of organic disinfection by-products (DBPs) and bromate were evaluated. Low ozone dosages resulted in oxidation of organic precursors, yielding decreases in the formation potential for total trihalomethanes (THMs), six haloacetic acids (HAAs), and total organic halide (TOX). Increasing the ozone dosage oxidized bromide to bromate, decreasing the bromide for incorporation into DBPs. Bromate concentrations were linearly correlated with ozone residuals. Changes in the bromine incorporation factors n and n[prime] reflected differences in the resulting speciation of THMs and HAAs, respectively. Because TOX measurements based on chloride equivalence may underestimate the halogenated DBP yield for high-bromide waters, a procedure is described whereby bromide and bromate concentrations were used to correct the TOX measurement.
- OSTI ID:
- 7081988
- Journal Information:
- Journal of the American Water Works Association; (United States), Vol. 86:6; ISSN 0003-150X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BROMIDES
ECOLOGICAL CONCENTRATION
DRINKING WATER
OZONIZATION
ORGANIC HALOGEN COMPOUNDS
PRECURSOR
WATER QUALITY
BROMINE COMPOUNDS
CHEMICAL REACTIONS
ENVIRONMENTAL QUALITY
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
WATER
552000* - Public Health
320603 - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Public Utilities- (1980-)