Title:
Selecting a Dechlorinating Chemical for a Wastewater Treatment Plant in Georgia
Selecting a Dechlorinating Chemical for a Wastewater Treatment Plant in Georgia
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Bagchi, Dipak
Kelley, Roy Thomas Jr.
Kelley, Roy Thomas Jr.
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Abstract
Wastewater treatment plants (WWTPs) that employ chlorine or chlorine dioxide for disinfection maintain a small total
residual chlorine (TRC) in the plant effluent prior to discharging
into receiving bodies of water. A TRC as low as 0.02 milligram per liter (mg/L) is toxic to aquatic life. The NPDES permits for
WWTPs in Georgia are now being issued with a very low TRC limit, making it necessary to add a dechlorination step in such
plants. The paper outlines an evaluation and comparison of available dechlorinating chemicals, demonstrates the cost analysis
procedure and describes the influence of non-cost related aspects in the final selection of a chemical.
Sponsor
Sponsored by U.S. Geological Survey, Georgia Department of Natural Resources, the University of Georgia, Georgia State University, and Georgia Institute of Technology.
Date Issued
1991
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