Acidic cleaning agent applicable to ultra-filtration membranes or reverse osmosis membranes

A technology of acid cleaning agent and reverse osmosis membrane, applied in the field of acid cleaning agent, can solve problems such as unsatisfactory system operation parameters, incomplete cleaning and decontamination, and short maintenance time, etc., and achieve superior cleaning performance, good cleaning effect, and easy to use less effect

Inactive Publication Date: 2016-06-29
常州联江环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the cleaning and decontamination are not thorough, the maintenance time is not long. After a short period of operation, the system operating parameters are not ideal again, and it needs to be cleaned again. The cleaning cycle is too short

Method used

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  • Acidic cleaning agent applicable to ultra-filtration membranes or reverse osmosis membranes
  • Acidic cleaning agent applicable to ultra-filtration membranes or reverse osmosis membranes
  • Acidic cleaning agent applicable to ultra-filtration membranes or reverse osmosis membranes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An acid cleaning agent suitable for ultrafiltration membranes or reverse osmosis membranes, comprising the following components:

[0019]

[0020] The above-mentioned components are proportioned according to weight percentage.

Embodiment 2

[0022] An acid cleaning agent suitable for ultrafiltration membranes or reverse osmosis membranes, comprising the following components:

[0023]

[0024] The above-mentioned components are proportioned according to weight percentage.

Embodiment 3

[0026] An acid cleaning agent suitable for ultrafiltration membranes or reverse osmosis membranes, comprising the following components:

[0027]

[0028] The above-mentioned components are proportioned according to weight percentage.

[0029] The cleaning effect contrast of above-mentioned embodiment 1, embodiment 2, embodiment 3 and the acid cleaning agent of single component is as follows table 1:

[0030] comparison group

Descaling type

Removal rate

citric acid

Carbonate, silicate inorganic scale

Carbonate 70%; Silicate scale 30%

hydrochloric acid

Carbonate, silicate inorganic scale

Carbonate 60%; Silicate scale 20%

Example 1

Carbonate, silicate inorganic scale

95％

Example 2

Carbonate, silicate inorganic scale

96％

Example 3

Carbonate, silicate inorganic scale

98％

[0031] Table 1

[0032] By comparing with Table 1, we can clearly see that the compound formula of the embodi...

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PUM

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Abstract

The invention discloses an acid cleaning agent suitable for ultrafiltration membranes or reverse osmosis membranes, which comprises the following components: 25-35% of organic acids, 5-10% of complexing agents, 2-5% of organic phosphates, and residual water . The ultrafiltration membrane / reverse osmosis membrane cleaning agent of the present invention has excellent cleaning performance, belongs to a composite formula, and has little environmental pollution. Not a single basic chemical raw material, good cleaning effect, suitable for all kinds of pollutants; and less usage.

Description

technical field [0001] The invention relates to an acid cleaning agent suitable for ultrafiltration membranes or reverse osmosis membranes. Background technique [0002] Reverse osmosis membrane elements currently rely on imports in China, mainly three American brands: DOW, HYDRANAUTICS; General Electric Company (GE for short). Ultrafiltration membrane elements are mainly produced by importing American GE, Dow, and several major domestic companies. [0003] The filtration pore size of reverse osmosis membrane elements is 0.5-10 nanometers, which can physically intercept and remove impurities, bacteria, and salt in water. It has only been used in China for less than 20 years. It is a new type of physical water treatment method. The scientific maintenance of reverse osmosis, the most important thing is to ensure the high desalination rate and high water volume of the membrane elements, and prolong the service life of the membrane elements, which is still very lacking in China...

Claims

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Application Information

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IPC IPC(8): B01D65/06
Inventor 徐先刚
Owner 常州联江环保科技有限公司
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