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Electrodialysis apparatus and filter device

A technology of electrodialysis and filtration, applied in water/sewage treatment equipment, water/sludge/sewage treatment, ion-exchanged water/sewage treatment, etc., can solve problems such as electrode plate corrosion, and achieve the effect of preventing corrosion

Active Publication Date: 2017-05-17
苏州新纽顿环保科技有限公司
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Problems solved by technology

[0003] However, since the water near the anode is acidic and the water near the cathode is alkaline, it is easy to cause corrosion to the electrode plate

Method used

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  • Electrodialysis apparatus and filter device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the embodiment shown in accompanying drawing:

[0015] See attached figure 1 As shown, an electrodialysis device includes a plurality of filter single channels stacked, the filter single channel includes a cathode plate 1 and an anode plate 2 oppositely arranged, and the first cation exchange between the cathode plate 1 and the anode plate 2 Membrane 3 and the first anion exchange membrane 4, the first anion exchange membrane 4 is arranged close to the anode plate 2, the first cation exchange membrane 3 is arranged close to the cathode plate 1, and the first cation exchange membrane 3 and the first anion exchange membrane 4 are arranged between There is a raw water channel 5, a first concentrated water channel 6 between the first anion exchange membrane 4 and the anode plate 2, a second concentrated water channel 7 between the second anion exchange membrane 10 and the cathode plate 1, and the firs...

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Abstract

The invention discloses an electrodialysis apparatus. The electrodialysis apparatus comprises a plurality of individual filter channels, wherein each individual filter channel comprises a cathode plate and an anode plate which are arranged oppositely to each other, and a first cation exchange membrane and a first anion exchange membrane which are arranged between the cathode plate and the anode plate. Since the surface of the anode plate is provided with the cation exchange membrane, the passing of anions can be blocked, and the corrosion of the anode plate is prevented; and since the surface of the cathode plate is provided with the anion exchange membrane, the passing of cations can be blocked, and the corrosion of the cathode plate is prevented.

Description

technical field [0001] The invention relates to the field of water purification, in particular to an electrodialysis device. Background technique [0002] The method of using the selective permeability of semipermeable membranes to separate different solute particles (such as ions) is called dialysis. When dialysis is performed under the action of an electric field, the phenomenon that charged solute particles (such as ions) in the solution migrate through the membrane is called electrodialysis. The technology of using electrodialysis to purify and separate substances is called electrodialysis. It is a new technology developed in the 1950s. It was originally used for seawater desalination and is now widely used in chemical industry, light industry, metallurgy, papermaking, and medicine. Industry, especially the preparation of pure water and the treatment of the three wastes in environmental protection, such as acid and alkali recovery, electroplating waste liquid treatment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/469C02F1/42
CPCC02F1/42C02F1/4693C02F2201/46Y02A20/124
Inventor 王军舰欧阳燕海钟入刚曹慧辉
Owner 苏州新纽顿环保科技有限公司
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