... aluminum sulfate flocculant, compared to the cost of water and low 15-30%.B, sedimentation of flocs formed quickly, fast, processing ... water insoluble high, usually used in wastewater treatment.B, plate-and-frame type poly () high aluminum chloride content, insoluble ... content, water-insoluble, dissolve faster. And higher standards for drinking water treatment. UseA, urban water supply and drainage ...