Filter element, separation device and treatment equipment

A filter element and central location technology, applied in the field of water treatment, can solve the problems of electrode burning, desalination performance decline, water flow blockage, etc.

Pending Publication Date: 2021-09-17
广东栗子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In short, the electrode chamber makes the structural design of electrochemical deionization very complicated. Once the contr

Method used

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  • Filter element, separation device and treatment equipment
  • Filter element, separation device and treatment equipment
  • Filter element, separation device and treatment equipment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0059] Example 1.

[0060] A roller-type bipolar membrane filter, comprising at least one pair of electrodes and a film structure by winding a set of one or more bipolar membrane obtained by the electrode group comprises at least one porous electrode, each bipolar membrane bonded by the with the cation exchange membrane and an anion exchange membrane, a bipolar membrane constituting the same cation exchange membrane and an anion exchange membrane between the free flow path.

[0061] A pair of electrodes may be composed of a set of two porous electrodes, or may be made a porous electrode and a common electrode. Ordinary electrodes such as metal electrodes, titanium electrodes, ruthenium electrodes, carbon electrodes, graphite electrodes, and the like having a ruthenium coating layer.

[0062] Wherein, the porous electrode can be composed of a porous material, or is formed by a porous material and a current collector, or is superimposed in a current collector, a porous material, and...

Example Embodiment

[0085] Example 2.

[0086] A roller-type bipolar membrane filter, otherwise the same features as in Example 1, except that, in the present embodiment: As Figure 4 , Figure 5 , The porous electrode 100 by a collector exchange membrane 130, a porous material 110, 120 are sequentially laminated forming anion, a porous electrode 100 is a cathode electrode film; porous electrode 200 by a collector 230, porous material 210, cation exchange membrane 220 sequentially layered, porous electrode film 200 is a positive electrode. Porous electrode collector may be porous material, the ion-exchange membrane laminated together to clamp, without using an adhesive; or may be fixed by thermal bonding or by adhesive bonding.

[0087] Volume bipolar membrane cartridges according to the present embodiment, which processes such as desalination Figure 4 , The roll bipolar membrane filter in a desalination process, the cation exchange membrane of the bipolar membrane is facing the positive electrode, des...

Example Embodiment

[0095] Example 3.

[0096] A roller-type bipolar membrane filter, or other features the same as in Example 21, except that: a porous collector electrode is not disposed, is formed only by a porous material and the ion-exchange membrane laminate. The porous material of the present embodiment has conductive properties to meet the needs of a conductive, and therefore no need to provide a collector.

[0097] Incidentally, a specific configuration of two porous electrodes, can be flexibly set according to need, such as a porous electrode having a collector, the collector of the other electrode is not porous, or two porous electrodes while having two porous electrodes while a collector or The collector is not provided, as long as you can meet the actual demand.

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Abstract

The invention discloses a roll type bipolar membrane filter element, an electrodeionization device with the filter element and water treatment equipment of the electrodeionization device. The filter element comprises at least one pair of electrode groups and a membrane structure formed by winding more than one bipolar membrane. The electrode assembly at least comprises a porous electrode, and each bipolar membrane is composed of a cation exchange membrane and an anion exchange membrane which are attached together. There is no flow channel between the cation exchange membrane and the anion exchange membrane which form the same bipolar membrane. The porous electrode and the bipolar membrane are adopted, and the bipolar membrane is wound into a roll type structure, so that the problems of gas generation and scaling caused by hydrolysis of water in an electrode chamber in the prior art can be avoided. The technical scheme can improve the desalination rate, and has the characteristics of high water production rate and less water resource waste.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a roll-type bipolar membrane filter element, an electrodeionization device with the roll-type bipolar membrane filter element and water treatment equipment. Background technique [0002] In the traditional electrochemical deionization device, the flow channel between the electrode and the ion exchange membrane is the pole water chamber, in which the oxidation reaction occurs in the anode chamber to generate oxygen, the anode water is acidic, and the anode is easily corroded; the reduction reaction occurs in the cathode chamber, Hydrogen is produced, the cathode water is alkaline, and the cathode is easy to scale. Therefore, the generation of gas and scale causes the voltage drop in the electrode water chamber to increase, which makes the device work unstable and the overall efficiency is low. In addition, the electrode chamber of the electrochemical deionization device d...

Claims

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Application Information

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IPC IPC(8): C02F1/469B01D61/48
CPCC02F1/4695B01D61/445B01D61/48C02F2303/22Y02A20/124
Inventor 陈小平
Owner 广东栗子科技有限公司
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