7T per hour pure drinking water filter purifier machine industrial Function of each part of water treatment plant 1.feed water pump pump-- provide the pressure to quartz sand filter/active carbon filter 2.Multi-medium filter-- get rid of turbidity, suspended matter, organic matter, colloid, ect. 3.Active Carbon filter--Remove the color, free chloride, organic matter, harmful matter, ect. 4.Softener--exchange "ions" of calcium and magnesium with the most common and easiest method. 5.Security filter--prevent large particles, bacteria, viruses into RO membrane, accuracy is 5um 6.High pressure pump-- Provide the high pressure to RO membrane 7.RO system-- main part of the plant. The RO membrane's desalting rate can reach 99%, removing over 99% ions 8.UV sterilizer or ozone generator--- kill bacteria