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AWWA ACE70889
- Controlling Chlorine to Ammonia Ratio at Treatment Processes: An Effective Solution for Minimizing Nitrification in Distribution Systems
- Conference Proceeding by American Water Works Association, 11/01/2009
- Publisher: AWWA
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This poster paper presents a study by the City of Houston (COH) to change its chloraminesdosing procedure at the East Water Purification Plant (EWPP)to target a 5:1 chlorine-to-ammonia-nitrogen (Cl2:NH3-N) massratio in treated water entering the distribution system. COH recognized that switching to a 5:1 chlorine-to-ammoniaratio is a critical first step in minimizing the potential fornitrification to occur in the distribution system. The poster paper discusses the significance of the 5:1 chlorine-to-ammonia-nitrogen mass ratio, along with chemical cost savings. Includes 5 references, figures.
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