Cast Iron Filter Press Area of Application Foodstuffs Sugar Fats Metallurgy Lead, copper, zinc, tin, manganese, nickel refinement, Refinement of various non-ferrous metals Precious metal refinement Liquid electroplating waste "Washer water" from blast furnaces Waste Water Treatment Industrial purification plants Petrochemicals Industrial acid waste neutralization Liquid chemical waste Liquid electroplating waste Pharmaceuticals / Biotechnology Coal Gravel quarries Ore extraction Chemicals Pigments Dyes Titanium dioxide Silica Catal