| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for easily obtaining sterilized water whose pH and effective chlorine concentration are specific. SOLUTION: Water is continuously fed to a mixing tank and water temperature in the mixing tank is maintained at <=70 deg.C, and hypochlorite (A) or a pH regulating agent (B) are added, while changing the addition quantity in accordance with a quantity of water fed to the mixing tank or the effective chlorine concentration of water in the mixing tank or the pH, etc., thus the sterilized water with 3-8 pH, 5-5,000 ppm effective chlorine concentration is produced.
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