Resource recycling method of waste polymeric microfiltration/ultrafiltration membrane

A polymer and ultrafiltration membrane technology, applied in recycling technology, plastic recycling, etc., can solve problems such as environmental pollution, and achieve the effects of simple process, mild reaction conditions and fast adsorption speed
CN103587003AInactive Publication Date: 2014-02-19HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2014-02-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a resource recycling method of a waste polymeric microfiltration / ultrafiltration membrane, and aims to solve the problem that environmental pollution is caused due to improper treatment of waste polymer microfiltration / ultrafiltration membranes. The method comprises steps as follows: step one, the waste filtration membrane is cleaned and dried; step two, a polymer solution is prepared; step three, a polymeric absorption resin particle suspension liquid is prepared; and step four, the polymeric absorption resin particle suspension liquid is post-processed, and polymeric absorption resin particles are obtained. According to the method, the waste filtration membrane is taken as a raw material, and polymeric absorption resin is prepared with a nonsolvent-induced phase separation method, so that harmless treatment and resource recycling of the waste filtration membrane are realized, and the method has good environmental benefits and economic benefits. The method is applied to the field of water treatment, chemical engineering and the like.
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Description

technical field

[0001] The invention relates to a method for resource recovery and utilization of waste polymer functional membranes. Background technique

[0002] Most of the microfiltration / ultrafiltration membranes that have been commercially used at present are polymer membranes. Due to the characteristics of the polymer material itself, under the action of various environmental factors, the polymer membrane will age as time goes on, which will change the separation performance of the membrane, making it difficult to meet the use requirements and need to be replaced with a new membrane. The current research and application show that the service life of polymer membranes is generally 3 to 8 years.

[0003] With the continuous development of membrane technology, membrane performance has been continuously improved, membrane prices have been continuously reduced, and the application range and application scale of membrane technology have been continuously expanded. At pres...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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