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THMs Control in Wastewater Treatment Plant Effluent

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Some municipal wastewater treatment plants in New Jersey are facing stringent effluent permit limits for Trihalomethanes (THMs), which are a byproduct of disinfection of fully nitrified effluent with chlorine-bearing compounds. Full scale evaluations at one impacted facility demonstrated that addition of a small dose of ammonia prior to the point of chlorine application (chloramination) prevents generation of THMs, just as it is practiced in the potable water treatment industry. Preliminary evaluations of air stripping and activated carbon treatment, which are another technologies used in water treatment for THMs control, indicated that these processes are not practical or cost-effective when applied to wastewater treatment plant effluent.

Keywords: Bromodichloromethane; Bromoform; Chloramination; Chlorination Byproducts; Chloroform; Dibromochloromethane; Effluent Disinfection; THMs

Document Type: Research Article


Publication date: January 1, 2011

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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