... Paper industry. Polyacrylamide :Polyacrylamide, one of the best flocculant, is a water soluble high-molecualr polymer with a wide scope ... displacement agent for EOR(enhance Oil Recovery), flocculant for water treatment, dehydration agent for sewage sludge, new type ... important fine chemicals, which can be widely used in petroleum, water treatment, paper making, mining, coal washing, medical industry, ...