Mixed ion exchange resin capable of adjusting PH value of effluent

A technology of mixed ion exchange and PH value, which is applied in the field of water purification, and can solve problems such as the inability to control the PH value of the effluent, and the inability to guarantee the PH value of the effluent.

Inactive Publication Date: 2016-10-12
FOSHAN VIOMI ELECTRICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, a single type or a mixed bed ion exchange resin is usually used to treat water. While changing the ion composition, the pH value of the product water will also change, and the pH value of the effluent water cannot be controlled according to the PH value of the influent water. value
There is no guarantee that the PH value of the effluent will be within the required range or within the acceptable range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A mixed ion exchange resin that can adjust the pH of the effluent, which is composed of a certain proportion of acid resin and alkaline resin. The mixed ion exchange resin can control the PH value of the effluent water within the required range while performing ion exchange on the treated raw water.

[0024] The acid resin is a strong acid cationic resin or a weak acid cationic resin or a mixture of a strong acid cationic resin and a weak acid cationic resin. The basic resin is a strongly basic anion resin or a weakly basic anion resin or a mixture of a strongly basic anion resin and a weakly basic anion resin.

[0025] It should be noted that any acid resin or basic resin can be used as the mixed ion exchange resin capable of adjusting the pH of the effluent. The type of acid resin can be but not limited to 732, 734 or D113. The model of the alkaline resin can be but not limited to 717, D301 or D311.

[0026] It should be noted that in actual use, according to different ra...

Embodiment 2

[0029] A mixed ion exchange resin that can adjust the pH of the effluent, which is composed of a certain proportion of acid resin and alkaline resin. Among them, in terms of volume ratio, the filling ratio of acid resin and alkaline resin is 1:0.8 to 1:6, and the pH value of the effluent is 7.5±1. The ratio of acidic resin and alkaline resin can make the PH value of the effluent be controlled at 7.5±1.

Embodiment 3

[0031] A mixed ion exchange resin that can adjust the pH of the effluent. The filling ratio of acid resin and alkaline resin is 1:1 to 1:5 in volume ratio, and the pH of the effluent is 7.5±1. The mixed ion exchange resin can not only meet the regulation of water quality, but also control the PH value of the effluent water.

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PUM

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Abstract

The invention discloses a mixed ion exchange resin capable of adjusting a PH value of effluent. The mixed ion exchange resin is formed by mixing acidic resin with basic resin in certain proportion; the PH value of the effluent is controlled to be within a required range while ion exchange is performed on raw water to be treated. The volumetric ratio of the acidic resin to the basic resin is 1: 0.8 to 1:6, and the PH value of the effluent is 7.5+/-1. The acidic resin is strong acid cation resin or weak acidic cation resin. The basic resin is strong basic anion resin or weak basic anion resin. According to the mixed ion exchange resin disclosed by the invention, the quality of the effluent can be realized, and the PH value of the effluent can be kept within the required range.

Description

Technical field [0001] The invention relates to the technical field of water purification, in particular to a mixed ion exchange resin capable of adjusting the PH value of effluent water. Background technique [0002] Ion exchange resin is one of the important materials used in water filtration, and has been widely used in the field of water purification. Ion exchange resins rely on chemically active groups in the resin for ion exchange with cations or anions in the solution, thereby changing the solute composition in the solution, and can be used for ion removal, water softening, separation and purification. [0003] The ion exchange resin in the prior art is mainly used to remove ions in water or exchange ion components in water. In the prior art, a single type or mixed-bed type ion exchange resin is usually used to treat water. When the ion composition is changed, the PH value of the produced water will also be changed, and the PH value of the outlet water cannot be controlled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42
CPCC02F1/42
Inventor 陈小平
Owner FOSHAN VIOMI ELECTRICAL TECH
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