USFilter recently obtained ANSI/NSF Standard 61 certification for its HS730 "Loop Chain" composite collector chain for water treatment plants.
The collector chain is attached to flights that move across the bottom of a rectangular tank, collecting settled solids. The Loop Chain is specifically designed for extra-long tanks that experience higher-than-normal loading.
"The certification signifies the collector chain can safely treat drinking water," explains William Selle, P.E., chain products engineer for USFilter. "The Loop Chain is just one of many rectangular collector chain and scraper components from USFilter that are ANSI/NSF Standard 61 certified."
Standard 61 certification addresses crucial aspects of drinking water system components, namely whether contaminants that leach or migrate from the product/material into drinking water are above acceptable levels in finished waters. The standard addresses possible health effects of treatment chemicals and related impurities that are considered contaminants for evaluation purposes.
The USFilter chain and scraper sludge collector system is suitable for water plant service, as well as for primary and secondary wastewater and storm water collection at treatment plants. It provides maximum sludge concentrations and scum or floating solids removal with minimal fuss, regardless of the size or application.
USFilter will display the chain and scraper sludge collector system, featuring Loop Chain, at Booth #1523, at this year's AWWA annual conference in San Francisco, June 12-16, 2005.
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