Novel biological pollution-resistant polyamide reverse osmosis composite membrane and preparation method thereof

A reverse osmosis composite membrane and anti-biological pollution technology, which is applied in the field of membrane separation, can solve the problems of uncontrollable polymerization process of ordinary free radical polymerization, and achieve the goal of solving uncontrollable polymerization process, improving use efficiency and service life, and saving energy Effect
CN105833749AActive Publication Date: 2016-08-10TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
Publication Date
2016-08-10

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Abstract

The invention discloses a novel biological pollution-resistant polyamide reverse osmosis composite membrane and a preparation method thereof. The preparation method comprises carrying out graft modification on a polyamide reverse osmosis membrane through atom transfer radical polymerization (ATRP), carrying out sterilization particle loading to obtain a reverse osmosis composite membrane with bioattachment resistance and antibacterial properties. The reverse osmosis composite membrane polymerization process is carried out at the room temperature and has high controllability. The reverse osmosis composite membrane can be conveniently and fast prepared, has stable performances, effectively improves use efficiency and a use life and reduces a seawater desalination cost.
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Description

technical field

[0001] The invention relates to the technical field of membrane separation, in particular to a novel anti-biological pollution polyamide reverse osmosis composite membrane and a preparation method thereof. Background technique

[0002] At present, the problem of global water resources is serious, and desalination of seawater has become an important strategic means to solve the shortage of water resources and plays an important role. Reverse osmosis technology is currently the most widely used technology in the preparation of high-purity water. It plays an increasingly important role in the desalination of seawater and brackish water, creating huge economic and social benefits.

[0003] Although reverse osmosis technology has been greatly developed and has entered the stage of commercial application, membrane fouling is still a key bottleneck restricting the development of reverse osmosis technology. Membrane fouling will lead to the formation of a gel layer ...

Claims

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