Reverse osmosis membrane treatment method and reverse osmosis membrane treatment system

摘要

Reverse osmosis has a slime-inhibiting effect on reverse osmosis membranes and suppresses the decrease in the amount of permeated water in reverse osmosis membrane treatment at high pressure, where treated water is passed through reverse osmosis membranes to obtain treated water and concentrated water. A membrane treatment method and a reverse osmosis membrane treatment system are provided. A reverse osmosis membrane treatment method and a reverse osmosis membrane treatment system 1 for passing treated water through a reverse osmosis membrane to obtain treated water and concentrated water, and a reverse osmosis membrane primary apparatus inlet pressure in a reverse osmosis membrane treatment apparatus 12 Is 3 MPa or more, the pH of the water to be treated is 7 or more, and at least one of a stabilized hypochlorous acid composition and a stabilized hypochlorous acid composition is present in the water to be treated. .