sedimentation tank plastic scraper Non-Metallic Sludge Scrapers for Corrosive Media | 18-Yr Expertise

A sedimentation tank plastic scraper is the primary mechanical component within both primary and secondary clarifiers, responsible for the continuous gathering and conveyance of settled solids to a central hopper. Its performance is fundamental to the clarifier's overall effectiveness. In primary treatment, it collects raw primary sludge, and in secondary treatment, it removes the biological floc (waste activated sludge). Plastic construction offers transformative advantages for this application. The scraper's immunity to corrosion ensures its structural integrity is never compromised by hydrogen sulfide or other acids produced in the anaerobic environment of the sludge blanket. This eliminates a primary cause of catastrophic failure and unplanned downtime. The abrasion resistance of engineered plastics protects the blade edges and structural members from wear caused by grit and sand, maintaining scraping efficiency over a much longer lifespan. The reduced weight lowers the load on the drive mechanism, decreasing energy consumption and wear on gears and bearings. Perhaps most importantly, the precision with which plastic components can be manufactured and installed allows for a perfectly balanced system that moves settled solids gently and consistently, without causing turbulence that can resuspend fine particles and degrade effluent quality. We manufacture a complete range of sedimentation tank plastic scrapers, from full bridge systems to chain and flight designs, all engineered to deliver unparalleled reliability and performance. For specifications tailored to your tank's design, please reach out to our engineering department.