Bactericide used for reverse osmosis membrane and preparation method thereof

A technology of reverse osmosis membrane and bactericide, which is applied in the field of high-efficiency bactericide and its preparation, can solve the problems of inconvenient operation, affecting the normal operation of production, and no bactericide, etc., to achieve enhanced bactericidal performance and stability, good synergistic effect, The effect of enhancing the bactericidal effect

Active Publication Date: 2012-11-28
安徽精高水处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The reverse osmosis membrane treatment system generally uses a bactericide (sodium hypochlorite) to sterilize the influent water in the pretreatment stage, and uses a reducing agent (sodium bisulfite) to reduce the residual chlorine in the water in the security filter treatment stage, because the material of the reverse osmosis membrane Very sensitive to residual chlorine, residual chlorine will damage the performance of reverse osmosis membrane materials (polyarylamide membrane, polysulfone membrane), causing irreversible damage to the reverse osmosis membrane, thus losing the ability to remove ions in water
[0003] Since the reducing agent (sodium bisulfite) reduces all the residual chlorine in the water, there is

Method used

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  • Bactericide used for reverse osmosis membrane and preparation method thereof
  • Bactericide used for reverse osmosis membrane and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] It is composed of deionized water, solvent, bromocyanopropionamide, bronopol and additives. Its weight percent composition is that bromocyanopropionamide is 2,2-dibromo-2-cyanoacetamide, accounting for 20%, bronopol is 2-bromo-2-nitro-1,3-propanediol, accounting for 5%, the solvent is polyethylene glycol PEG200, accounting for 40%, the auxiliary agent is citric acid, accounting for 10%, and the balance of deionized water.

[0020] Add polyethylene glycol PEG200 into the reaction kettle at room temperature, add 2,2-dibromo-2-cyanoacetamide and 2-bromo-2-nitro-1,3-propanediol and stir to dissolve for 50~60 minutes, then Add citric acid and deionized water, stir for 20-30 minutes, and stand still for 10 minutes to obtain this product.

Embodiment 2

[0022] It is composed of deionized water, solvent, bromocyanopropionamide, bronopol and additives. Its weight percent composition is that bromocyanopropionamide is 2,2-dibromo-2-cyanoacetamide, accounting for 25%, and bronopol is 2-bromo-2-nitro-1,3-propanediol, accounting for 10%, the solvent is ethylene glycol, accounting for 50%, the auxiliary agent is lactic acid, accounting for 5%, and the balance is deionized water.

[0023] Add ethylene glycol into the reaction kettle at room temperature, add 2,2-dibromo-2-cyanoacetamide and 2-bromo-2-nitro-1,3-propanediol and stir to dissolve for 50~60 minutes, then add lactic acid Stir with deionized water for 20-30 minutes, and stand still for 10 minutes to obtain this product.

Embodiment 3

[0025] It is composed of deionized water, solvent, bromocyanopropionamide, bronopol and additives. Its weight percent composition is that bromocyanopropionamide is 2,2-dibromo-2-cyanoacetamide, accounting for 30%, and bronopol is 2-bromo-2-nitro-1,3-propanediol, accounting for 7%, the solvent is ethanol accounting for 30%, diethylene glycol accounting for 30%, the auxiliary agent is urea accounting for 1%, and the balance of deionized water.

[0026] Add ethanol and diethylene glycol into the reaction kettle at room temperature, add 2,2-dibromo-2-cyanoacetamide and 2-bromo-2-nitro-1,3-propanediol and stir to dissolve for 50-60 minutes, then Add urea and deionized water, stir for 20-30 minutes, and let stand for 10 minutes to obtain this product.

[0027] The reverse osmosis membrane bactericide of the present invention can quickly penetrate the cell membrane of microorganisms and act on certain protein groups to stop the normal oxidation and reduction of cells, thereby causin...

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Abstract

The invention discloses a bactericide used for a reverse osmosis membrane and a preparation method thereof. The bactericide is prepared by compounding the following components in percentage by weight: 20-30 percent of cyanogen bromide propanamide, 5-10 percent of bronopol, 40-60 percent of solvent, 1-10 percent of auxiliary agent and the balance of deionized water. The preparation method comprises the following steps of: adding the solvent into a reaction kettle at room temperature; adding the cyanogen bromide propanamide and the bronopol and stirring for 50-60 minutes; adding the auxiliary agent and the deionized water and stirring for 20-30 minutes; and standing still for 10 minutes. The bactericide used for the reverse osmosis membrane can be used for quickly penetrating through a microbial cell membrane and acting on certain protein groups to ensure that the normal oxidation and reduction of cells are stopped so as to cause cell death, and the bactericide used for the reverse osmosis membrane has the advantages of quick and efficient performance and convenience in use.

Description

technical field [0001] The invention belongs to the technical field of reverse osmosis membrane system water treatment, and in particular relates to a high-efficiency bactericide used for reverse osmosis membrane sterilization treatment and a preparation method thereof. Background technique [0002] The reverse osmosis membrane treatment system generally uses a bactericide (sodium hypochlorite) to sterilize the influent water in the pretreatment stage, and uses a reducing agent (sodium bisulfite) to reduce the residual chlorine in the water in the security filter treatment stage, because the material of the reverse osmosis membrane It is very sensitive to residual chlorine, which will damage the performance of the reverse osmosis membrane material (polyarylamide membrane, polysulfone membrane), causing irreversible damage to the reverse osmosis membrane, thus losing the ability to remove ions in water. [0003] Since the reducing agent (sodium bisulfite) reduces all the resi...

Claims

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Application Information

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IPC IPC(8): B01D65/02A01N37/34A01N33/20A01N25/22A01P1/00
Inventor 杨继
Owner 安徽精高水处理有限公司
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