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Chemical Feed Reliability News June 2015

Chemical Feed Reliability News

            Vol. 3, No. 1                 Reported independently by Catalytic Objective Synthesis*                    June, 2015


City Improves Reliability for Chlorine Residual Compliance, and Cuts Chemical Costs, through Replacement of Pump System with Special Vacuum Feeder System for Bleach, LAS, and Polyphosphate

                                        Also Gains Greater Feed Accuracy, Less Operator Attention, Enhanced                                        Safety Margin, Reduced Apparel Costs

Replacement of problematic peristaltic pump system with special liquid vacuum feeder system for bleach, liquid ammonium sulfate (LAS), and polyphosphate feeds provided improved reliability for maintaining required minimum chlorine residual throughout booster-pumped distribution network.

Replacement of problematic peristaltic pump system with special liquid vacuum feeder system for bleach, liquid ammonium sulfate (LAS), and polyphosphate feeds provided improved reliability for maintaining required minimum chlorine residual throughout booster-pumped distribution network.

The public works director responsible for a southwestern U.S. city’s drinking water supply reports multiple benefits from replacement of a problematic peristaltic pump system with a special liquid vacuum feeder system for bleach, liquid ammonium sulfate (LAS), and polyphosphate feeds at one of its well sites. In particular, he notes improved reliability for maintaining required minimum chlorine residual of 0.5 mg/L, as far as about 12 miles from well sources in the city’s 480 mi. drinking water distribution network.

He also notes the replacement unit has cut chemical costs by 34%, saving about $9000 annually; provided for greater chemical feed accuracy; allowed for enhanced safety margins against hazardous leaks; and reduced the excessive cost of worker apparel replacement.