MBR integrated device for relieving membrane pollution

Abstract

The invention provides an MBR integrated device for relieving membrane pollution. The MBR integrated device has the advantages that a settling tank and sludge backflow are not required to be additionally arranged on the device, and only a settling area is required to be additionally arranged inside a biological reaction tank, that is, the settling tank is arranged inside the biological reaction tank; sludge is effectively intercepted through a honeycomb inclined plate tube in the settling tank and flows back into the biological reaction tank, so that the high sludge concentration and the high processing capacity of the biological reaction tank can be effectively ensured; moreover, the quantity of the sludge flowing into a membrane tank is reduced, so that the membrane pollution is relived; and clear water in the membrane tank can be used for regular medicine washing, so that the running cost is reduced in the practical operation, and the land use space is saved.

Description

technical field [0001] The invention relates to an MBR membrane bioreactor, in particular to an MBR integrated device capable of slowing down membrane fouling, and belongs to the technical field of water treatment. Background technique [0002] MBR, also known as membrane bioreactor, is a new type of water treatment technology that combines activated sludge process and membrane separation technology. It has the advantages of high quality and stable effluent water quality. In recent years, with the improvement of membrane production technology, membrane performance has been continuously improved, and its production cost has been continuously reduced, making membrane bioreactors more and more used in the field of sewage treatment. However, in the existing MBR devices, an independent quick sedimentation tank is generally set between the biochemical treatment unit and the submerged membrane treatment unit, which makes the whole device occupy a large space, and the sludge at the ...

AI Technical Summary

Problems solved by technology

However, in the existing MBR devices, an independent quick sedimentation tank is generally set between the biochemical treatment unit and the submerged membrane treatment unit, which makes the whole device occupy a large space, and the sludge at the bottom of the quick sedimentation tank is refluxed. It will also generate operating costs; in addition, while the membrane treatment unit effectively treats sewage, the load of the membrane module increases, and the microbial flora is easy to attach to the membrane module, causing blockage and pollution of the membrane module, which further reduces the service life of the membrane module

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