WATER TREATMENT METHOD USING REVERSE OSMOSIS MEMBRANE, AND AGENT FOR IMPROVING BLOCKING RATE OF SILICA IN REVERSE OSMOSIS MEMBRANE

摘要

PROBLEM TO BE SOLVED: To provide a water treatment method for treating raw water containing silica with a reverse osmosis membrane, the water treatment method capable of inhibiting the oxidation degradation and fouling of the reverse osmosis membrane to improve a blocking rate of silica.;SOLUTION: The present invention provides a water treatment method using a reverse osmosis membrane that is for treating raw water containing silica with the reverse osmosis membrane. In the method, to the raw water, added is a stabilized hypobromous acid composition containing a bromine oxidizing agent and a sulfamic acid compound.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT