Reverse osmosis technology (RO) is a process of dissolving and separating substances by using a polymer membrane.The reverse osmosis equipment is mainly composed of a reverse osmosis main component, supplemented by a multistagecentrifugal pump, a high pressure pipeline control valve, a pressure protection device, and the lilke. lt can efiectively trapdisolved salts, small molecules, coloids and microorganisms in water, Desalting with reverse osmosis membrane is moreeficient and economical than general ion exchange and distillation. It can be used in the electronics and pharmaceuticalindustries to produce pure water and desalination ofseawater and brackish water.