Sereco - Model PRVA - Backward and Forward Sludge Aspirator for Rectangular Clarifier Brochure

The PRVA type is a valid alternative to the PRVR type with scraper and is particularly recommended for the water with considerable loads of sludge and floating materials. The bridge consists of a mobile girder used as a walkway, a couple of lateral sliding trolleys, a sludge removal system a surface scraper system for the scum removal, a gear motor for the lateral trolley driving, a control unit for the articulated bottom scraper-skimming blade system and a control panel. The gear motor and the control unit are fitted on in correspondence of the bridge centerline. The water goes in from one of the short side of the tank.