Preparation method of polymer porous membrane for removing water pollutants

A technology of water pollutants and polymer membranes, applied in the field of separation membranes, can solve the problems of complex operation process, cyclodextrin and its derivative components are easy to lose and cannot be removed, and achieve simple preparation process and large-scale continuous Separation and automatic operation, the effect of fast separation speed
CN104548949AActive Publication Date: 2015-04-29CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2015-04-29

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Abstract

The invention relates to the technical field of separation membranes and discloses a preparation method of a polymer porous membrane for removing water pollutants. The preparation method comprises the following steps of blending cyclodextrin and a membrane preparation material, and adding a cross-linking agent into the mixture to fix the cyclodextrin to the membrane material so that repeated use is avoided, cyclodextrin is lost from the polymer porous membrane, a selective separation function of the polymer porous membrane is lost and polymer porous membrane hydrophility is changed. The polymer porous membrane has a substantial capability of adsorption and removal of organic pollutants such as phenols and aromatic amines (aromatic substances) in water, has good heavy metal ion removal effects, has high separation efficiency and low pressure drop, is convenient for regeneration, can be massively produced and used easily, and can be widely used in an ecological protection water purification treatment system and a water treatment system.
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Description

Technical field

[0001] The present invention relates to the technical field of separation membranes, in particular to a preparation method of polymer porous membranes used to remove pollutants in water bodies, in particular to a regenerable polymer membrane used to remove pollutants in water bodies based on the molecular recognition of cyclodextrin Method of preparing polymer film. Background technique

[0002] With the continuous growth of the global economy and the world’s population, problems such as resource shortages and environmental pollution have become increasingly serious. Environmental protection, especially the protection of water resources, has received widespread attention from the whole society. my country is one of the thirteen most water-poor countries in the world, and large-scale industrial production consumes a lot of water resources and also produces a lot of industrial sewage. Therefore, we strengthen the protection and purification of water resources and im...

Claims

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