... water,industry water and industry recycling water.2) Reclaiming coal from coal-washing waste water and kaolin in ceramic industry3) Purification ... dyeing industry, leather industry, brewage industry, meat-processing industry, coal-washing, metallurgy industry, mine, pharmacy, paper-making, and purification ... and heated damp, do not damage packaging. high grade Poly Aluminium Chloride 18% AI2O3