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Cleaning fluid for water treatment ultrafiltration membranes

A technology of ultrafiltration membrane and cleaning solution, which is applied in the field of ultrafiltration membrane cleaning solution for water treatment, can solve the problem that organic matter in wastewater cannot be washed, and achieve the effects of simple production, efficient removal, and simple formula

Inactive Publication Date: 2013-12-25
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is easy to remove the inorganic matter in the membrane first, some wastewater organic matter in the membrane cannot be washed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The present embodiment provides a water treatment ultrafiltration membrane cleaning liquid, which is composed of deionized water, inulinase, gentiobiase, citrulline, β-amylase, xylanase, and aspartic acid protease Composition; the amount of each component per cubic meter of deionized water is: inulinase 55g, gentiobiase 90g, citrulline 20g, β-amylase 200g, xylanase 180g, aspartic acid protease 10g.

[0017] The preparation method of this water treatment ultrafiltration membrane cleaning solution is to take 1m 3 Deionized water, add the above-mentioned inulinase, gentiobiose, citrulline, β-amylase, xylanase, and aspartic acid protease to the deionized water, and stir with a stirrer for 30min to make the inulin Dissolve enzymes and the like in deionized water to obtain water treatment ultrafiltration membrane cleaning solution.

[0018] Present embodiment also provides a kind of ultrafiltration membrane cleaning method, it comprises the following steps:

[0019] 1) Rou...

Embodiment 2

[0024] The present embodiment provides a water treatment ultrafiltration membrane cleaning liquid, which is composed of deionized water, inulinase, gentiobiase, citrulline, β-amylase, xylanase, and aspartic acid protease Composition; the amount of each component per cubic meter of deionized water is: inulinase 45g, gentiobiase 60g, citrulline 15g, β-amylase 135g, xylanase 180g, aspartic acid protease 5g.

[0025] The preparation method of this water treatment ultrafiltration membrane cleaning solution is to take 1m 3 Deionized water, add the above-mentioned inulinase, gentiobiose, citrulline, β-amylase, xylanase, and aspartic acid protease to the deionized water, and stir with a stirrer for 30min to make the inulin Dissolve enzymes and the like in deionized water to obtain water treatment ultrafiltration membrane cleaning solution.

[0026] Present embodiment also provides a kind of ultrafiltration membrane cleaning method, it comprises the following steps:

[0027] 1) Rout...

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PUM

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Abstract

The invention provides a cleaning fluid for water treatment ultrafiltration membranes. The cleaning fluid for the water treatment ultrafiltration membranes is composed of deionized water, inulase, gentiobiase, citrulline, beta-amylase, zytase and aspartic protease. The deionized water in each cubic meter comprises the components of 20-60g inulase, 40-90g gentiobiase, 5-20g citrulline, 80-200g beta-amylase, 60-200g zytase and 5-10g aspartic protease. The invention further provides a method for cleaning the ultrafiltration membranes. The cleaning fluid for the water treatment ultrafiltration membranes is simple in formula and simple and easy to produce. The cleaning fluid is basically composed of active enzymes, and can effectively removing the organic pollutants in the ultrafiltration membranes.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to a water treatment ultrafiltration membrane cleaning liquid. Background technique [0002] With the maturity of membrane preparation technology, ultrafiltration technology is more and more widely used in industrial water treatment. Ultrafiltration method has the characteristics of high treatment efficiency, low investment and small footprint. However, as the system runs longer, the ultra-membrane wax is easily polluted and clogged, so the cleaning of the ultra-filtration membrane is particularly important. The cleaning method widely used at present is pickling or alkaline cleaning. Although this method is easy to remove the inorganic matter in the membrane first, some waste water organic matter in the membrane cannot be washed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water treatment ultrafiltration memb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06
Inventor 刘尚超薛改凤段建峰刘璞王丽娜吴亮军张垒张楠付本全
Owner 武汉钢铁有限公司
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