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Regeneration treatment method for purification column of ultrapure water device

A technology of ultrapure water device and treatment method, which is applied in water/sewage treatment, non-polluted water treatment, chemical instruments and methods, etc., can solve the problems of ultrapure water device and purification column pollution, poor regeneration effect, waste of time, etc. , to achieve the effect of strengthening regeneration effect, saving time and reducing pollution

Pending Publication Date: 2021-10-15
鄯善万顺发新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, during the regeneration process of the existing ultrapure water device purification column, most of the purification column is removed from the ultrapure water device for regeneration work, which is cumbersome and time-consuming, and in the process of removal , it is easy to cause pollution to the ultrapure water device and the purification column, making the regeneration effect poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for regenerating a purification column of an ultrapure water device comprises the following steps:

[0034] (1). Take out all the anion and cation exchange resins in the purification column and put them in the positive column for rinsing;

[0035] (2). Cation exchange resin: wash the cation exchange resin with clean water first, then alternately soak it in the positive tower with 5% HCl and NaOH for 4 hours, rinse with a large amount of clean water between acid and alkali until the effluent is close to neutral , repeat this 3 times, each time the amount of acid and alkali is 2 times the volume of the resin, the last treatment should be carried out with 5% HCl solution, drain the acid solution, rinse with water until neutral;

[0036] (3). Anion exchange resin: wash the anion exchange resin with clean water first, then alternately soak it with 5% NaOH and HC1 in the positive tower for 4 hours, rinse with a large amount of clean water between alkali and acid unti...

Embodiment 2

[0043] A method for regenerating a purification column of an ultrapure water device comprises the following steps:

[0044] (1). Take out all the anion and cation exchange resins in the purification column and put them in the positive column for rinsing;

[0045] (2). Cation exchange resin: first rinse the cation exchange resin with water, then alternately soak it in the positive tower with 4% HCl and NaOH for 2 hours, rinse with a large amount of water between acid and alkali until the effluent is close to neutral , repeat this twice, each time the amount of acid and alkali is twice the volume of the resin, the last treatment should be carried out with 4% HCl solution, drain the acid solution, and rinse with water until neutral;

[0046] (3). Anion exchange resin: first rinse the anion exchange resin with water, then alternately soak it in the positive tower with 4% NaOH and HCl for 2 hours, rinse it with a large amount of water between alkali and acid until the effluent is c...

Embodiment 3

[0053] A method for regenerating a purification column of an ultrapure water device comprises the following steps:

[0054] (1). Take out all the anion and cation exchange resins in the purification column and put them in the positive column for rinsing;

[0055] (2). Cation exchange resin: first rinse the cation exchange resin with clean water, then alternately soak it in the positive tower with 4.5% HCl and NaOH for 3 hours, rinse with a large amount of clean water between acid and alkali until the effluent is close to neutral , repeat this 3 times, each time the amount of acid and alkali is twice the volume of the resin, the last treatment should be carried out with 4.5% HCl solution, drain the acid solution, rinse with water until neutral;

[0056] (3). Anion exchange resin: wash the anion exchange resin with clean water first, then alternately soak it in the positive tower with 4.5% NaOH and HCl for 3 hours, rinse with a large amount of clean water between alkali and acid...

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Abstract

The invention provides a regeneration treatment method for a purification column of an ultrapure water device. The regeneration treatment method for the purification column of the ultrapure water device comprises the following steps: S1, taking out: (1) taking out all anion and cation exchange resin in the purification column, and putting the anion and cation exchange resin into a cation tower for rinsing; and S2, cleaning by (1) cation exchange resin: washing the cation exchange resin with clear water, sequentially and alternately soaking the cation exchange resin in a cation tower with 4-5% HC1 and NaOH for 2-4 hours, leaching the cation exchange resin with a large amount of clear water between acid and alkali until effluent is close to neutral, repeating the steps for 2-3 times, the acid and alkali dosage each time is 2 times of the volume of the resin, performing the last treatment by using a 4-5% HC1 solution, and completely discharging the acid liquor, and leaching with clear water until the acid liquor is neutral. According to the regeneration treatment method for the purification column of the ultrapure water device, the purification column can be prevented from being disassembled, the regeneration effect is enhanced, and the purification column can be subjected to backwashing and thorough forward washing, so that the advantages of reducing the workload and reducing pollution can be achieved.

Description

technical field [0001] The invention belongs to the technical field of a regeneration treatment method for a purification column of an ultrapure water device, and in particular relates to a regeneration treatment method for a purification column of an ultrapure water device. Background technique [0002] The chromatographic column used to purify substances, when the sample passes through the column with the mobile phase, the impurities will be better separated, so as to improve the purity of the sample, so it is called a purification column. The laboratory has high requirements for water and is often used Pure water is used to ensure the reliability of the experiment, and now in the ultrapure water device used in the laboratory to produce pure water, the purification columns used are all general series of civilian products. [0003] However, in the prior art, during the regeneration process of the existing ultrapure water device purification column, most of the purification ...

Claims

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Application Information

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IPC IPC(8): B01J49/60B01J49/53B01J49/57C02F1/42C02F103/04
CPCB01J49/60B01J49/53B01J49/57C02F1/42C02F2001/422C02F2001/425C02F2103/04
Inventor 周青龙许建云刘洋孙高安建科杨成林张秀星金亮薛培冬
Owner 鄯善万顺发新能源科技有限公司
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