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High-efficiency ultrafiltration membrane cleaning solution and cleaning method

A cleaning solution and ultrafiltration membrane technology, applied in the field of cleaning, can solve the problems of easy clogging of ultrafiltration membranes and shortened lifespan of ultrafiltration membranes, and achieve the effect of enhancing cleaning effect, excellent effect and good removal effect.

Inactive Publication Date: 2017-10-20
太仓市金鹿电镀有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic impurities contain heavy metal ions or insoluble substances. Organic substances can easily block the ultrafiltration membrane and shorten the life of the ultrafiltration membrane. Microbial impurities form colloidal pollutants that are more stubborn.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high-efficiency cleaning solution for ultrafiltration membranes, comprising a main cleaning solution and a biochemical cleaning solution, wherein the main cleaning solution contains the following raw material components in parts by weight:

[0036] 3 parts EDTA sodium salt

[0037] Sodium dodecylbenzenesulfonate 1.5 parts

[0038] Sodium lauryl sulfate 2.1 parts

[0039] Fatty alcohol polyoxyethylene ether 0.5 parts

[0040] Sodium fatty alcohol polyoxyethylene ether sulfate 2 parts

[0041] Sodium hexametaphosphate 0.2 parts

[0042] Sodium citrate 0.5 parts

[0043] Sodium silicate 0.35 parts

[0044] 80 parts of product water;

[0045] The biochemical additive liquid contains the following components by weight:

[0046] 0.6 part of fungicide

[0047] Cellulase 0.5 parts

[0048] Pectinase 1.3 parts

[0049] Protease 0.2 parts

[0050] 0.5 parts of pH buffer solution

[0051] 90 parts of product water;

[0052] Wherein, the pH buffer solution in the bio...

Embodiment 2

[0060] A high-efficiency cleaning solution for ultrafiltration membranes, including a main cleaning solution and a biochemical cleaning solution, wherein the main cleaning solution contains the following raw material components in parts by weight:

[0061] EDTA sodium salt 5 parts

[0062] Sodium dodecylbenzenesulfonate 3.2 parts

[0063] Sodium Lauryl Sulfate 2.8 parts

[0064] Fatty alcohol polyoxyethylene ether 2.5 parts

[0065] Fatty alcohol polyoxyethylene ether sodium sulfate 0.8 parts

[0066] Sodium hexametaphosphate 0.1 parts

[0067] Sodium citrate 1.5 parts

[0068] Sodium silicate 0.1 part

[0069] 100 parts of product water;

[0070] The biochemical additive liquid contains the following components by weight:

[0071] 1.6 parts of fungicide

[0072] Cellulase 1.5 parts

[0073] 1.5 pectinase

[0074] Protease 0.8 parts

[0075] 1 part pH buffer solution

[0076] 100 parts of product water;

[0077] Wherein, the pH buffer solution in the biochemical add...

Embodiment 3

[0081] A high-efficiency cleaning solution for ultrafiltration membranes, comprising a main cleaning solution and a biochemical cleaning solution, wherein the main cleaning solution contains the following raw material components in parts by weight:

[0082] EDTA sodium salt 2 parts

[0083] Sodium dodecylbenzenesulfonate 2.3 parts

[0084] Sodium Lauryl Sulfate 1.3 parts

[0085] Fatty alcohol polyoxyethylene ether 1.5 parts

[0086] Fatty alcohol polyoxyethylene ether sodium sulfate 0.4 parts

[0087] Sodium hexametaphosphate 0.3 parts

[0088] 3 parts sodium citrate

[0089] Sodium silicate 0.7 parts

[0090] 85 parts of product water;

[0091] The biochemical additive liquid contains the following components by weight:

[0092] 2 parts fungicide

[0093] Cellulase 0.2 parts

[0094] 0.3 pectinase

[0095] Protease 1 part

[0096] 0.8 parts of pH buffer solution

[0097] 80 parts of product water;

[0098] Wherein, the pH buffer solution in the biochemical addit...

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Abstract

The invention discloses a high-efficiency ultrafiltration membrane cleaning solution which comprises a main cleaning solution and a biochemical additive solution, wherein the main cleaning solution comprises 2-5 parts of EDTA sodium salt, 1.5-3.2 parts of sodium dodecyl benzene sulfonate, 1.3-2.8 parts of lauryl sodium sulfate, 0.5-2.5 parts of fatty alcohol-polyoxyethylene ether, 0.4-2 parts of ethoxylated lauryl alcohol sulfates, 0.1-0.3 part of sodium hexametaphosphate, 0.5-3 parts of sodium citrate, 0.1-0.7 part of sodium silicate and 80-100 parts of product water; the biochemical additive solution comprises 0.6-2 parts of a bactericide, 0.2-1.5 parts of cellulase, 0.3-1.5 parts of pectinase, 0.2-1 part of protease, 0.5-1 part of a pH buffer solution and 80-100 parts of product water. The high-efficiency ultrafiltration membrane cleaning solution disclosed by the invention is excellent in effect, has an excellent effect for removing inorganic and organic pollutants and biological pollutants and also has a flexible processing property.

Description

technical field [0001] The invention relates to the technical field of cleaning, in particular to an ultrafiltration membrane high-efficiency cleaning liquid and a cleaning method. Background technique [0002] Ultrafiltration membrane Ultrafiltration membrane is a porous filtration membrane with uniform pore size and a pore size range of less than 0.2 microns. The method is ultrafiltration membrane filtration. It is used in the separation, concentration and purification of biological products, pharmaceutical products and food industry; it is also used in blood treatment, purification of active ingredients of Chinese herbal medicine, etc. Its separation effect is efficient and precise. However, regular cleaning must be carried out during use to maintain a certain membrane permeation flux. Usually, the product is cleaned by water power first, and then different cleaning solutions are used for cleaning according to the situation. The cleaning solution The selection directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/02B01D61/14
Inventor 支建明
Owner 太仓市金鹿电镀有限公司
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