... country drink water,industrial waste water,special separation, concentrating Operating condition pretreatment50-150umMaxinmum inlet ... liquor(PH=2)saving of UF membranenew membrane before usingairproofhalt using in 7 daysInfuse ... separation, concentrating.5. Application of drink waterApplicable sphere: Mineral water, pure water, tap water, country drink water.Pretreatment of Ro membrane. UF membrane ...