Torsional vibration type hollow fiber membrane filtering device

Abstract

The invention discloses a torsional vibration type hollow fiber membrane filtering device, belonging to the technical field of water treatment. The torsional vibration type hollow fiber membrane filtering device overcomes the problems of a concentration polarization phenomenon and membrane pollution in the process of filtering raw water by using a hollow fiber membrane module in the prior art, and the problems of adverse influence on the filtering effect and many limitations of an existing membrane pollution control method. The invention provides a torsional vibration assembly which is connected with a hollow fiber membrane assembly for use, so torsional vibration of a hollow fiber membrane is realized, the problem of energy consumption caused by axial up-and-down vibration of the hollow fiber membrane in the prior art is avoided, the problem of requirement on the space of a reactor by horizontal vibration of the hollow fiber membrane in the prior art is solved, and the problems of concentration polarization and membrane pollution in a raw water filtering process are effectively solved.

Description

technical field [0001] The invention relates to a torsional vibration hollow fiber membrane filter device, which belongs to the technical field of water treatment. Background technique [0002] In order to meet the increasing drinking water standards, more and more old water plants tend to adopt ultrafiltration membrane filtration technology in their upgrading and transformation. This is because an existing sand filter can be converted into an ultrafiltration membrane reaction tank (especially for hollow fiber membrane modules) with minor modifications. However, how to effectively control the development of membrane fouling is still the biggest obstacle in the application process. Through the investigation of many aspects, it has obvious advantages to eliminate and delay the concentration polarization phenomenon and the development rate of membrane fouling by enhancing the shear force on the membrane surface. Currently, the most widely used methods to enhance the shear for...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of concentration polarization and membrane fouling in the process of raw water filtration using hollow fiber membrane modules, which adversely affect the filtering effect and many limitations of the existing membrane fouling control methods, the present invention provides a Torsional Vibration Hollow Fiber Membrane Filtration Device

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