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

    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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