| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing ozone water which can simply and inexpensively recover the fatigue with elapsed time of a cation-exchange membrane and remove a stain component. SOLUTION: The method of producing the ozone water comprises pressing an anode 22 to one face of the cation-exchange membranes 21a to 21c, pressing a cathode 23 to the other face, supplying water to the anode 22 and the cathode 23, and applying a direct-current voltage between the anode 22 and the cathode 23, wherein the ozone water is produced by applying a direct-current voltage with positive polarity to the cation-exchange membranes 21a to 21c which have absorbed water while the water has been supplied to the anode 22 and the cathode 23, and then stopping the current for a fixed period of time or longer, and applying a direct-current voltage with reverse polarity to give displacement to the cation-exchange membranes 21a to 21c. COPYRIGHT: (C)2008,JPO&INPIT |
