Water treatment program and water treatment method to prevent metal corrosion and to suppress scale formation of water ions

摘要

The present invention relates to a water treatment program and a water treatment method for preventing corrosion of metals and inhibiting scale formation of water ions, wherein the concentration of orthophosphate ions is 0.5 to 30 ppm on a mass basis in the water treatment program, and the concentration of polyphosphate ions is 0.5 to 40 ppm, the concentration of the organic phosphate ions is 0.1 to 50 ppm, the concentration of the azole compound is 0.1 to 20 ppm, and the concentration of the acrylate terpolymer is maintained at 0.1 to 100 ppm, corrosion prevention and water ions of the metal To provide a water treatment program for suppressing scale formation.