... ,PES Dia:4",6",8",10" Casing:UPVC,SS,FRP drinking water treatment plant with Ultra filtration membrane water filtering filter ... super-purified water.• Drinking water and mineral water treatment.• Underground water treatment• Food & beverages industry of bean, milk, sugar, alcohol, tea juice ... Time15-120minsChemicalsCitric acid,NaOH / NaClO,H2O2 UF membrane filter for drinking water treatment plant