... or DOW membrane,high disalination rate, lowoperation cost,RO membrane auto wash and manual wash.Pre-treatment system: 304 Stainless steel tank with ... RO(Reverse osmosis),UF(Ultra filter), EDI(Electrodialysis),Ion exchanger,Pre-filters(Sand filter, Carbon filter,micro filter), Integrated water filter(Reaction-sedimentation tank),MBR ...