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Electrodialysis ion-exchange membrane cleaning agent and preparation method thereof

A technology of ion-exchange membrane and cleaning agent, which is applied in the field of cleaning agent for ion-exchange membrane cleaning. It can solve the problems of ion-exchange membrane life-span impact, high cleaning intensity, and long cleaning time, so as to shorten cleaning time and reduce cleaning frequency. , High cleaning efficiency

Inactive Publication Date: 2013-12-25
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For electrodialysis desalination treatment of circulating cooling sewage, when the ion exchange membrane is seriously polluted, it takes too much time to clean by the above method, the cleaning time is too long and the cleaning intensity is too high, which will not only affect the life of the ion exchange membrane , will also delay production and cause losses

Method used

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  • Electrodialysis ion-exchange membrane cleaning agent and preparation method thereof
  • Electrodialysis ion-exchange membrane cleaning agent and preparation method thereof
  • Electrodialysis ion-exchange membrane cleaning agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] A preferred formulation of the cleaning agent of the present invention for ion exchange membrane serious pollution cleaning when being preferentially used for electrodialysis desalination treatment of refinery cycle cooling sewage is as follows (weight percent):

[0025]

[0026] In a corrosion-resistant reactor with stirring and grinding, sequentially add sodium hydroxide, sodium tripolyphosphate, sodium dodecylbenzenesulfonate, sodium sulfate, sodium carbonate, hydroxymethyl base Cellulose and ethylenediaminetetraacetic acid tetrasodium salt are stirred at room temperature for 4-6 hours and ground evenly, which is the granular cleaning agent of the present invention.

Embodiment 2

[0028] Another preferred formulation of the cleaning agent of the present invention that is preferentially used for electrodialysis desalination treatment of refinery cycle cooling sewage, ion exchange membrane serious pollution cleaning is as follows (weight percentage):

[0029]

[0030]

[0031] In a corrosion-resistant reactor with stirring and grinding, add sodium hydroxide, sodium tripolyphosphate, sodium dodecylbenzenesulfonate, sodium sulfate, sodium carbonate, and sodium chloride in sequence according to the above components and proportions , hydroxymethyl cellulose, and tetrasodium edetate, stirred at room temperature for 4-6 hours, and ground evenly, is the granular cleaning agent of the present invention.

Embodiment 3

[0033] Another preferred formulation of the cleaning agent of the present invention that is preferentially used for electrodialysis desalination treatment of refining and chemical enterprise circulating cooling effluent, ion-exchange membranes are generally polluted and cleaned as follows (percentage by weight):

[0034]

[0035] In a corrosion-resistant reactor with stirring and grinding, add sodium hydroxide, sodium tripolyphosphate, sodium dodecylbenzenesulfonate, sodium sulfate, sodium carbonate, and sodium chloride in sequence according to the above components and proportions , hydroxymethyl cellulose, and tetrasodium edetate, stirred at room temperature for 4-6 hours, and ground evenly, is the granular cleaning agent of the present invention.

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Abstract

The invention provides an electrodialysis ion-exchange membrane cleaning agent and a preparation method thereof. The electrodialysis ion-exchange membrane cleaning agent is prepared by mixing 20-40wt% of sodium hydroxide, 5-20wt% of sodium tripolyphosphate, 3-20wt% of sodium dodecyl benzene sulfonate, 0-5wt% of sodium sulfate, 5-20wt% of sodium carbonate, 15-30wt% of common salt, 0-5wt% of hydroxymethyl cellulose and 2-10wt% of tetrasodium ethylenediamine tetraacetate. The preparation method comprises the following steps of orderly adding the above materials into a corrosion-resistant reactor with stirring and grinding functions, carrying out stirring at a normal temperature for 4-6h, and carrying out uniform grinding to obtain a finished product. The electrodialysis ion-exchange membrane cleaning agent has high cleaning efficiency, greatly reduces cleaning time and reduces energy consumption of the cleaning system.

Description

technical field [0001] The invention relates to a cleaning agent suitable for electrodialysis ion-exchange membranes, in particular to a cleaning agent suitable for cleaning ion-exchange membranes for electrodialysis desalination treatment of refinery cycle cooling sewage wastewater reuse water. Background technique [0002] At present, the total industrial water consumption in the country is 140.2 billion cubic meters, accounting for 24.1% of the total national water consumption. The water consumption of circulating cooling water in industrial water accounts for a considerable proportion, accounting for about 50-80% of the total industrial water consumption. Due to the large water consumption of circulating cooling water, the discharge of sewage is also large. Improving the utilization efficiency of water in industrial cooling systems will be the key to industrial water saving and emission reduction. Compared with developed countries, my country still has a large gap in t...

Claims

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Application Information

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IPC IPC(8): B01D65/06
Inventor 朱安民滕厚开郑书忠陈军张大猛张磊
Owner CHINA NAT OFFSHORE OIL CORP
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