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Capacitive deionization device and regeneration method thereof

A capacitive deionization and desalination device technology, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, can solve the problems of rising investment costs of control nodes, increasing equipment footprint, and complex desalination systems, etc., to achieve improved regeneration The effect of improving water production rate and simplifying the regeneration process

Pending Publication Date: 2018-12-25
郭洪飞
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Problems solved by technology

[0009] The present invention designs a capacitive deionization device and its regeneration method. The technical problem it solves is that the regeneration process of a traditional capacitive deionization desalination device usually adopts a multi-stage regeneration method, although it can also meet the requirements of a general treatment system, but The entire desalination system is very complicated, and the increase of control nodes will bring about the increase of investment costs, especially the further increase of the equipment footprint

Method used

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  • Capacitive deionization device and regeneration method thereof
  • Capacitive deionization device and regeneration method thereof

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Embodiment Construction

[0028] Combine below figure 1 and figure 2 , the present invention is further described:

[0029] like figure 1 As shown, a capacitive deionization device includes a desalination device tube body 1, a water inlet 11 for sewage containing metal ions is provided at one end of the desalination device tube body 1, and a water distributor 141 is provided inside the desalination device tube body 1, One end of the water distributor 141 is closed, the closed end is close to the water inlet 11, and the other end is provided with a water outlet 12. The surface of the water distributor 141 is uniformly provided with a plurality of water inlet holes 141; The metal ion-containing sewage passes through the water inlet 11, the vertical channel 16 between the desalination device body 1 and its nearest electrode sheet 15, and the horizontal channel between the desalination device body 1 and a plurality of electrode sheets 15 17. The vertical channel between two adjacent electrode pieces 15...

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Abstract

The invention relates to a capacitive deionization device and a regeneration method thereof. The capacitive deionization device is characterized in that after the capacitive deionization device is powered on and adsorbs metal ions in sewage, the metal ions are sufficiently separated from electrode slices by prolonging short connected discharge time to form concentrated water with high metal ion concentration, and the concentrated water in the capacitive deionization device is directly emptied.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a capacitive deionization device and a regeneration method thereof. Background technique [0002] During the working process of the capacitive deionization desalination system, the raw water is affected by the electric field when it flows between the cathode and the anode, and the charged particles in the water migrate to the electrodes with opposite charges respectively, are absorbed by the electrodes and stored in the electric double layer, and finally Realize the separation from water and obtain purified / desalinated effluent. When the electrode adsorption reaches saturation, it stops working. At this time, the DC power supply is removed and the positive and negative electrodes are short-circuited. Due to the disappearance of the DC electric field, the ions stored in the electric double layer and the charged particles adsorbed on the electrode surface are released again. into the c...

Claims

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Application Information

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IPC IPC(8): C02F1/469
CPCC02F1/4691C02F2201/46
Inventor 郭洪飞
Owner 郭洪飞
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