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AWWA ACE91064
- Disinfection By-Products Control: A Survey of American System Treatment Plants
- Conference Proceeding by American Water Works Association, 01/01/1991
- Publisher: AWWA
$58.00$116.00
This paper presents results of an analytical survey of disinfection byproducts (DBPs) and control measures in American Water Works Service Company system treatment plants and distribution systems. The survey is a three-phase effort involving 24 American System treatment plants. This paper specifically addresses DBP control options, including: coagulation optimized for total organic carbon removal/delayed chlorination; use of chloramines as a post-disinfectant; and DBP removal by GAC filtration. The results of the coagulation study indicate that treatment that is optimized to control certain DBPs enhances the formation of others. This paradox could render in-plant control of DBPs ineffective. The chloramine evaluation indicates that chloramines effectively control DBPs in finished water. GAC filtration was evaluated for its ability to remove organic carbon, trihalomethanes, haloacetonitriles, haloketones, haloacetic acids, chloral hydrate, chloropicrin, and 2,4,6-TCP.
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