Adding Ammonia to the Disinfection Process, Reducing DPP of TTHM and HAA5

This presentation provides a review in factors that impact the formation of disinfection byproducts, a quick review of related regulations, and how to reduce the formation of disinfection byproducts. Information presented with the addition of ammonia to chlorinated water describes how the formation of DBP is limited as well as describing the various forms of ammonia, tables to show the mix ratios between ammonia and chlorine and an explanation in the use or understanding of the break point chlorination curve. This presentation was given by Rex Heape, P.E. at the joint MWEA/MO-AWWA Conference at Tan-Tar-A resort.

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