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Hypochlorite Feed Alternatives News August 2014

Hypochlorite Feed Alternatives News™

          Vol. 1, No. 2                   Reported independently as Catalytic Objective Synthesis™*                        August 2014


                             City Solves Reliability and Maintenance Problems for WTP Hypo Feeds                           Takes Advantage of Advanced Vacuum Feeders

At the city’s 1200 MGD WTP, 15% hypo is fed at the main entry point to distribution shafts, at the rate of 1000-1200 GPD.

At the city’s 1200 MGD WTP, 15% hypo is fed at the main entry point to distribution shafts, at the rate of 1000-1200 GPD.

A municipal water quality manager reports replacement of sodium hypochlorite (hypo) vacuum feeder units with a more advanced type at one water treatment plant (WTP) has helped allow for continued reliability for chlorination. He also notes replacement of a different vacuum unit at another WTP, with the same more advanced type, to end costly maintenance problems there.

At the city’s 1200 MGD WTP, 15% hypo is fed at the main entry point to distribution shafts, at the rate of 1000-1200 GPD. Subsequent continuous monitoring of chlorine residual is conducted to assure an average level of 1.1 mg/L, and a range of 0.8-1.3 mg/L, per water quality department needs. Until last February, the hypo feed was provided by 10-year old vacuum feeders.