Water treating agent and method for treating water

摘要

Disclosed are a water treating agent comprising a ternary copolymer of conjugated dienesulfonic acid/(meth)acrylic acid/2-hydroxyethyl (meth)acrylate or a ternary copolymer of conjugated dienesulfonic acid/(meth)acrylic acid/(meth)acrylamido-2-methylalkanesulfonic acid ternary copolymer, and a method for treating water with the agent. The agent exhibits an excellent anti scaling and anti fouling effect in water systems. When combined with a corrosion inhibitor, it exhibits an excellent anti corrosion effect.