Filter membrane assembly with one ends of membrane component and membrane filament being movable

Abstract

The invention discloses a filter membrane assembly with one ends of a membrane component and a membrane filament being movable and belongs to the technical field of environment-friendly sewage treatment. A membrane unit is arranged in a framework and is immersed in sewage in a MBR aerobic biochemical tank, and includes the membrane component, a framework, a membrane filament horizontal pipe or vertical pipe, a fixed horizontal plate or vertical plate, a moving system and an aeration system. In the invention, one end of the membrane component is arranged in a rotation manner, so that the part,at the rotation position of the membrane component, of the membrane filament is loose and movable; during air purification, the membrane filament at the rotation position can swing and accumulation ofpollutants is avoided; by means of vertical or transversal movement of the moving system, the looseness of the membrane filament is kept during the air purification, and the membrane filament can swing at a large amplitude, so that the pollutants are not liable to accumulate at the membrane bundle and the two ends of the membrane bundle in the filter membrane assembly. During water production operation after the air purification, by means of vertical or transversal reverse movement of the moving system, the membrane filament is tensioned, and the swing amplitude of the membrane filament is low, so that a problem of filament breaking can be solved.

Description

Technical field [0001] The invention relates to a filter membrane module, which belongs to the technical field of environmentally friendly sewage treatment, in particular to a membrane element used in a membrane bioreactor and a filter membrane module with a movable end of the membrane filament. Background technique [0002] At present, the membrane bioreactor or MBR technology has been widely used in sewage treatment. The membrane bioreactor is a new type of wastewater treatment system that combines membrane separation technology and biological treatment technology. Replace the secondary sedimentation tank at the end of traditional biological treatment technology with membrane modules to maintain high activated sludge concentration in the bioreactor and increase the organic load of biological treatment, thereby reducing the footprint of sewage treatment facilities and reducing the sludge load by maintaining low The amount of remaining sludge. The filter membrane immersed in the...

AI Technical Summary

Problems solved by technology

[0009] 1. The membrane bundles at both ends are easy to accumulate pollutants:

[0010] Due to the tight connection of the membrane bundles at both ends, the aeration gas is not easy to pass through and reach the inside of the membrane bundle of the head 12. After a long time of operation, pollutants are easily mixed between the membrane filaments 8 and 8 of the membrane bundle. In particular, a large amount of pollutants often accumulate in the middle of the membrane bundles of the head 12 at both ends, which affects the water production of the membrane system, and is difficult to clean out in daily cleaning.

[0011] 2. Membrane filaments are loose and prone to broken filaments:

[0012] The loose membrane filaments swing relatively large under the condition of aeration, which is beneficial to cleaning the pollutants on the membrane surface, but at the same time, long-term and large-scale swings will cause mechanical damage to the membrane filaments, which are prone to broken filaments and seriously affect the filtration efficiency. Effluent quality of the membrane and service life of the membrane

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