... , sediment trap etc mechanism function, make edema subtle aerosols and colloidal ions off firm, gathered, flocculation, coagulation, precipitation ... ----Note : ammonia gas, arsenic, lead, cadmium, mercury, chrome and other impurities quality scores are 10.0% Al 2 O ... products of which A mandatory,B classes are recommended. Factory price of Polyaluminium chloride for industrial wastewater treatment