Title

Evaluation of techniques for control of disinfection by-products: A pilot study

Authors

Authors

F. N. Nnadi; M. Hernandez;M. Fulkerson

Comments

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Abbreviated Journal Title

J. Environ. Sci. Health Part A-Toxic/Hazard. Subst. Environ. Eng.

Keywords

disinfection by-products; trihalomethanes; haloacetic acids; disinfection by-product rule; maximum contaminant levels; natural; organic matter; chlorination; chloramination; WATER; Engineering, Environmental; Environmental Sciences

Abstract

The purpose of this study was to evaluate the effects of various treatment processes as they relate to the development of disinfection by-products (DBPs). At an existing municipal water supply, several tests were performed, including: air-stripping, potassium permanganate (KMnO4) addition, pH adjustment, evaluation of corrosion control inhibitors, final disinfection, and granular activated carbon (GAC) filtration. Several HAAs were shown to increase at higher pH. The use of air stripping greatly reduced the required amount of chlorine disinfectant. Air stripping, permanganate addition, and chloramination reduced DBPs below 20 mug/L. Stiles-Kem 7840 addition effectively controlled lead and copper concentrations in the distribution system. The use of chloramination as a secondary disinfectant is recommended to meet stage 1 of the disinfection by-product rule.

Journal Title

Journal of Environmental Science and Health Part a-Toxic/Hazardous Substances & Environmental Engineering

Volume

39

Issue/Number

6

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

1573

Last Page

1585

WOS Identifier

WOS:000222215100017

ISSN

1093-4529

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