A method of preparing charged anode water, the method comprising the steps of:
- (a) feeding feed water into the middle chamber of a electrolytic cell comprising a cathode chamber, a middle chamber, and an anode chamber, a fluorinated cation-exchange membrane separating the cathode chamber and the middle chamber from each other, a cathode closely attached to a cation-exchange membrane on the side facing the cathode chamber, wherein the middle chamber is filled with cation-exchange resins, wherein the cation-exchange resins are arranged in such a way to come into contact with the fluorinated cation-exchange membrane in the cathode chamber side and with an anode in the anode chamber side,
- (b) passing the feed water through the cation-exchange resins, and
- (c) recovering the charged anode water from the anode chamber.