Reverse osmosis cleaning agent

A cleaning agent and reverse osmosis technology, which is applied in the field of ring reagent process treatment, can solve the problems of complex fouling and blocking components and weak cleaning effect, and achieve the effects of effectively removing dirt, restoring water production and reducing costs.

Inactive Publication Date: 2019-08-30
WUHAN JINPO CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no effective cleaning agent to clean the reverse osmosis membrane
In addition, the reverse osmosis membrane will also be accompanied by the presence of organic fouling during fouling, making the composition of the fouling more complex, and the cleaning effect of conventional cleaning agents is minimal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a reverse osmosis cleaning agent, the method steps are as follows:

[0025] S1: Preparation method of alkaline reverse osmosis cleaning agent Add 0.5% metal chelating agent, 0.4% alkaline pH regulator, and 0.1% octylphenol polyoxyethylene ether into the reaction kettle in sequence, stir for 20 minutes, and set the temperature at 5°C / min Gradually increase the temperature to 23°C;

[0026] S2: After adding the remaining amount of distilled water during the stirring process, gradually raise the temperature to 50°C at 5°C / min, and stir for 30min;

[0027] S3: After stopping stirring, keep warm for 1 hour, and cool to room temperature to obtain alkaline reverse osmosis cleaning agent;

[0028] S4: The acidic reverse osmosis cleaning agent is composed of the following raw materials according to the following mass percentages: 0.1% citric acid and 0.1% acidic pH regulator are added to the reaction kettle in turn, and after stirring for 20 minutes, the...

Embodiment 2

[0036] A preparation method of a reverse osmosis cleaning agent, the method steps are as follows:

[0037] S1: Preparation method of alkaline reverse osmosis cleaning agent Add 1% metal chelating agent, 0.4% alkaline pH regulator, and 0.2% octylphenol polyoxyethylene ether into the reaction kettle in sequence, stir for 20 minutes, and then wash at 5°C / min Gradually warm up to 24°C;

[0038] S2: After adding the remaining amount of distilled water during the stirring process, gradually raise the temperature to 51°C at 5°C / min, and stir for 30min;

[0039] S3: After stopping stirring, keep warm for 1.2h, and cool to room temperature to obtain alkaline reverse osmosis cleaning agent;

[0040] S4: The acidic reverse osmosis cleaning agent is composed of the following raw materials according to the following mass percentages: 0.2% citric acid and 0.2% acidic pH regulator are added to the reaction kettle in sequence, and after stirring for 20 minutes, the temperature is gradually r...

Embodiment 3

[0048] A preparation method of a reverse osmosis cleaning agent, the method steps are as follows:

[0049] S1: Preparation method of alkaline reverse osmosis cleaning agent Add 2% metal chelating agent, 0.4% alkaline pH regulator, and 0.3% octylphenol polyoxyethylene ether into the reaction kettle in sequence, stir for 20 minutes, and then wash at 5°C / min Gradually heat up to 25°C;

[0050] S2: After adding the remaining amount of distilled water during the stirring process, gradually raise the temperature to 52°C at 5°C / min, and stir for 30min;

[0051] S3: After stopping stirring, keep warm for 1.4h, and cool to room temperature to obtain alkaline reverse osmosis cleaning agent;

[0052] S4: The acid reverse osmosis cleaning agent is composed of the following raw materials according to the following mass percentages: 0.3% citric acid and 0.3% acidic pH regulator are added to the reaction kettle in sequence, and after stirring for 20 minutes, the temperature is gradually rai...

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PUM

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Abstract

The invention relates to a reverse osmosis cleaning agent including an alkaline reverse osmosis cleaning agent and an acidic reverse osmosis cleaning agent, and the alkaline reverse osmosis cleaning agent and the acidic reverse osmosis cleaning agent are separately stored; the alkaline reverse osmosis cleaning agent consists of the following raw materials in percentage by mass: 0.5 to 6% of metalchelating agent, 0.4 to 0.5% of alkaline pH adjusting agent, 0.1 to 0.5% of octaphenyl polyoxyethyiene, and the balance of distilled water; the acidic reverse osmosis cleaning agent consists of the following raw materials in percentage by mass: 0.1 to 0.4% of citric acid, 0.1 to 0.4% of acidic pH adjusting agent and the balance of distilled water. The reverse osmosis cleaning agent can effectivelyremove dirt, can quickly recover the water yield of a reverse osmosis system in a short time, is simple and quick to produce and manufacture, and greatly reduces the dirt removal cost.

Description

technical field [0001] The invention relates to a ring reagent process technology, in particular to a reverse osmosis cleaning agent. Background technique [0002] There are various forms of substances in the influent water that can cause reverse osmosis membrane surface contamination, such as hydrated metal oxides, calcium-containing precipitates, organic matter, and organisms. The purpose of setting up the pretreatment device of the membrane system is to minimize the pollution on the membrane surface. By installing a suitable pretreatment system and selecting appropriate operating conditions (such as product water flow rate, operating pressure, product water recovery rate, etc.), you can achieve this goal. [0003] The pretreatment system cannot completely remove the substances that cause reverse osmosis membrane fouling. After correct pretreatment, there will still be colloidal and particulate matter pollution in the supply water. Moreover, during the desalination proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06B01D61/02C02F1/44
CPCB01D61/025B01D65/02B01D2321/16B01D2321/162B01D2321/164C02F1/441C02F2303/14
Inventor 喻新荣胡欧鹏黎利明
Owner WUHAN JINPO CHEM TECH
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