Scrapers clean solids from intake systemProblem
Backwash strainers at a wastewater treatment plant in Toronto, were consistently clogging with oversized solids that made it past the intake bar screens. Downstream pumping equipment experienced high failure rates, and subsequent treatment stages were overwhelmed by the solids.Solution
The plant installed two 16-inch Automatic Scraper Strainers from Acme Engineering Products rated for 6,000 gpm each. The scraper keeps the screen clean using aggressive brushes that clean out the slots of the wedgewire screen. It operates automatically, using line pressure to intermittently purge accumulated solids. Maintenance is infrequent and requires simple replacement of the scraper blade
