| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic treatment method and apparatus which can perform electrolytic treatment so that scale components in a water system are removed by the proper amount, and that a chlorine oxidizing agent is contained in outflow water from an electrolytic device in a method for supplying water of the water system to the electrolytic device and performing the electrolytic treatment. SOLUTION: In an electrolytic treatment process, a voltage is impressed between an anode 3 and a cathode 4, and water from a reservoir 51 is circulated to a first electrolytic device 1 or to a second electrolytic device 1B to perform the electrolytic treatment. Hydrogen is generated in the vicinity of the cathode 4 to make the pH alkaline. A bicarbonate ion is dissociated into a carbonate ion in the vicinity of the cathode 4 to generate calcium carbonate and magnesium carbonate from a Ca ion and a Mg ion. These carbonates are deposited on the surface of the electrode to reduce a scale forming tendency. The second electrolytic device 1B is specially used for scale deposition. The first electrolytic device 1 is controlled so that oxidation-reduction potential in the circulating water is within a prescribed range, and the second electrolytic device 1B is controlled so that the pH is within a prescribed range. COPYRIGHT: (C)2006,JPO&NCIPI
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