Patent ID: 8173006

Claim:
An electrolyzed water production apparatus comprising an electrolyzer tank for receiving or storing raw water for electrolysis, and a power supply, wherein two electrode pairs are provided in the electrolyzer tank and connected to the power supply, and each has an anode and an cathode arranged with a diaphragm sandwiched therebetween, the electrolyzer tank is partitioned into three regions by diaphragms of the two electrode pairs, in one region of the three regions, an anode of one electrode pair of the two electrode pairs and a cathode of another electrode pair of the two electrode pairs are arranged so as to face each other, the two electrode pairs are provided such that a distance between the anode and the cathode of each of the electrode pairs can be controlled, and electrolyzed water having a pH of 2.7 to 7.5 and an available chlorine concentration of 10 to 60 ppm and capable of being taken out is produced by controlling the distance between the anode and the cathode of each of the electrode pairs in one region of the three regions of the electrolyzer tank.