SILICA FOULING INHIBITOR AND METHOD OF FOULING PREVENTION

摘要

A silica fouling inhibitor which comprises either a copolymer having (meth)acrylic acid units and monomer units having a sulfo group, the proportion of the monomer units having a sulfo group exceeding 10 mol%, or a copolymer having carboxy and sulfo groups, the sulfo group/carboxy group molar ratio being 0.15-2.0; and a method of preventing silica fouling, characterized by adding either of the copolymers to circulating water. Use of the silica fouling inhibitor is effective in preventing silica fouling in a cooling water system, etc.