... wastewater treatment chemicals, cationic polyacrylamide is ideal for the treatment of wastewater with high content of ... such as the dyeing, papermaking, food, construction, metallurgy, ore dressing, pulverized coal, oilfield, fermentation, and the aquatic products ... processing, etc.4. Cationic Polyacrylamide is especially suitable for the dehydration of municipal sewage, municipal sludge, papermaking ...