Outer surface or inner surface conductive type hollow membrane and preparation method thereof

Abstract

The invention discloses an outer surface or inner surface conductive type hollow membrane and a preparation method thereof. The method includes (1), according to the actually required electric field intensity of the outer surface or inner surface of the hollow membrane, performing simulation calculation by physical field simulation software to acquire the coverage and shape of fabric, serving as aconductive layer and required to cover the outer surface or inner surface of the hollow membrane, to the superficial area of the hollow membrane; (2), weaving conductive fibers onto the outer surfaceof the hollow membrane by a two-dimensional or three-dimensional knitting machine according to a simulation calculation result; or weaving the conductive fibers into a conductive fiber woven tube bythe two-dimensional or three-dimensional knitting machine according to a concentric circular spinning method; processing the hollow membrane onto the outer surface of the tube. The preparation methodis simple and convenient, low in cost and capable of preparing the outer surface or inner surface conductive type hollow membrane with low resistance; membrane pollution is effectively and evenly controlled, the electric field density is increased, the electric field strength is enhanced, the distance between electrodes is shortened, the rejection of EPS extracellular polymers and microorganisms in a membrane bioreactor is facilitated, pollutant deposition is slowed down, and the anti-pollution ability of the membrane is improved.

Description

Technical field [0001] The invention relates to an outer surface or inner surface conductive hollow film and a preparation method. Background technique [0002] With the development of the economy and the improvement of people's living standards, people's requirements for water quality have increased significantly. The increasingly serious pollution makes the problem of sewage treatment urgently to be solved. However, traditional biological treatment processes generally have shortcomings such as long process flow, large area, and high operating cost. At present, the selection of hollow membrane materials and membrane technology have attracted much attention. Since conventional membrane materials are all non-conductive materials, there is no advantage over existing processes. [0003] In physical electricity, we divide matter into four types: insulators, semiconductors, conductors, and superconductors. With the development of society, some people in industrial production have pre...

AI Technical Summary

Problems solved by technology

The membrane with conductive function is made by mixing the conductive polymer and the casting solution. The membrane electrode is placed in the MBR, which can reduce membrane pollution and improve the water discharge performance of the MBR. However, the preparation method of this conductive membrane is expensive and expensive. Difficult and low degree of automation problems

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