Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor

Abstract

The invention provides a folded plate membrane assembly for retarding membrane pollution in a membrane bioreactor, belonging to the technical field of environment engineering. The folded plate membrane assembly comprises a hollow folded-plate-shaped organic glass framework and a filter membrane, wherein the filter membrane covers two sides of the folded-plate-shaped organic glass framework to form the folded plate membrane assembly; the folded plate membrane assembly at least has two waveforms; a plurality of water collection galleries connected with the hollow interior of the framework are arranged on the side surface of the folded-plate-shaped organic glass framework, and an annular water outlet is formed in the upper end of the folded-plate-shaped organic glass framework. By applying the folded plate membrane assembly to a membrane bioreactor process, the cross current velocity of a membrane surface-near fluid can be improved, the turbulent disturbance effect of the membrane surface-near fluid can be enhanced, the deposition of particulate matters on the membrane surface is beneficially reduced, and the membrane pollution is effectively retarded. The folded plate membrane assembly has the beneficial effects that the antifouling property of the membrane assembly can be improved without increasing the energy consumption, the service life of the membrane assembly is prolonged, the cleaning frequency of the membrane assembly is reduced, the operation cost of the membrane bioreactor process is substantially lowered, and the wide application of the membrane bioreactor is promoted.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, relates to sewage treatment and reclaimed water reuse technology, and in particular to a method for reducing the process cost of a membrane bioreactor and delaying membrane fouling. Background technique [0002] With the increase of population and the development of social economy, the shortage of water resources and water pollution have become the most urgent environmental problems faced by human beings in the 21st century. In the past 20th century, the traditional sewage treatment process represented by activated sludge and biofilm showed great advantages in the field of sewage treatment. However, the traditional sewage treatment process has the disadvantages of large area, large amount of residual sludge and high energy consumption, and the quality of effluent water is difficult to meet the increasing sewage and wastewater discharge standards. At present, various new and imp...

AI Technical Summary

Problems solved by technology

However, it is obvious that compared with the traditional flat membrane module, the appealing new membrane module will inevitably occupy a larger space, resulting in a lower packing density of the membrane module.

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