THMs Control in Wastewater Treatment Plant Effluent
Abstract: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.
Document Type: Research Article
Publication date: January 1, 2011
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