Electrodialysis water treatment device with intermediate electrode plates and method

• Main Authors: WEI WENHONG, WANG ZHOU, ZHAO YI, YANG WENCHUN, ZHANG XUHUI
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to an electrodialysis water treatment device with intermediate electrode plates and method. The device comprises a water inlet 1, a water producing port 2, an acidic water producing port 3, an acidic water producing port 4, a cathode plate 5, the intermediate electrode plates 6, cation exchange membranes 7, anion exchange membranes 8 and an anode plate 9, wherein the cathode plate 5 and the anode plate 9 are positioned on the outermost side, more than one intermediate electrode plate 6 is arranged between the cathode plate 5 and the anode plate 9, and one cation exchange membrane and one anion exchange membrane in one pair are arranged between any two adjacent electrode plates. When in operation, the intermediate electrode plates 6 gather different charge on two sides, cations and anions can permeate the ion exchange membranes, move towards the unlike electrode plates under the action of electric field force and can be subjected to electrolytic reaction when meeting the different charge