Regenerative water softening equipment

Water softener (201), a cathode (8) and anode (9), on one surface has a cation exchange surface (1a), has an anion exchange surface (1b) on the other surface, and wherein the shade one or more water-splitting ion exchange membrane laminated between the ion-exchange surface and the cathode and the anode such that the cation exchange surfaces toward the cathode with facing the anode (1), the cathode , the anode and the casing (7) for housing one or more of the water-splitting ion exchange membrane, wherein the casing includes a first inlet (10) and the first outlet is the inlet and outlet of each treatment water (11 a), and a is an inlet and outlet of the regeneration water second inlet (12) and a second outlet (13), respectively, the differential pressure of the process water between the first inlet and the first outlet the greater the pressure difference of the reproduction water between the second inlet and the second outlet in the process water and the flow rate.