Method for producing slime inhibitor for separation membrane, slime inhibitor for separation membrane, and method for suppressing slime of separation membrane

摘要

PROBLEM TO BE SOLVED: To provide a one-component slime inhibitor for a separation membrane capable of suppressing a decrease in the amount of permeated water even when the pH of water supplied to the separation membrane or washing water is 5.5 or less. SOLUTION: A slime inhibitor for a separation membrane containing a bromine-based oxidizing agent, a sulfamic acid compound, an alkaline agent, a nitrite, and water, and having a molar equivalent ratio of water to nitrite ions derived from the nitrite of more than 6. Is. [Selection diagram] None