Wanda environmental protection for you to solve the puzzle: purified water preparation mainly consists of five parts: pretreatment, primary desalination device, depth desalination device, post-treatment devices, purified water delivery distribution system. Process flow includes: raw water → raw water pressurization pump → multi-media filter → activated carbon filter → water softener (or scale inhibitor and dosing device) → precision filter → the first stage of reverse osmosis → PH adjustment → intermediate tank (optional) → the second stage of reverse osmosis (reverse osmosis membrane surface with a positive charge) → purified water tank → water pump → ultraviolet sterilizer → porous filters → point of use.
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