Low energy-consumption integrative membrane bioreactor

Abstract

The invention relates to a low energy-consumption integrative membrane bioreactor which leads a biological reaction tank and a membrane bio-filter to be integrated; sewage fully reacts with sludge inan integrative biological reaction tank (1) in the reaction tank after entering in the integrative biological reaction tank (1) under the aeration of a micropore aerator pipe (7), and then clean waterflows out to a clean water tank (5) from a membrane component (2) through the filtration of the membrane component (2). In the invention, a micropore aerator device and a perforation aerator device are effectively combined, so as to effectively utilize oxygen and improve the treatment effect of the reaction tank when treating the same water quality and water quantity compared with a way using a single aeration way; in addition, the needed energy consumption for processing sewage is the lowest when the water quality reaches to standard.

Description

technical field [0001] The invention relates to a membrane bioreactor, in particular to an integrated biological reaction tank provided with two aeration devices, in particular to a low energy consumption integrated membrane bioreactor. Background technique [0002] The membrane separation unit of the membrane bioreactor MBR system is placed in the reaction separation tank at a certain interval. The activated sludge in the tank degrades the organic matter in the sewage, and the degraded water is discharged through the hollow membrane filament. Membrane pores are extremely small, and particulate matter and activated sludge cannot be separated through the membrane pores, so clarified filtered water can be stably obtained from drainage. However, in actual operation, due to the high content of microorganisms in the bioreactor and easy adhesion on the surface of the membrane, it is easy to pollute the membrane module. Once the membrane is fouled, the filtration efficiency of sew...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the single aeration mode of the existing membrane bioreactor. During the aeration process, if the bubbles are large, the oxygen in the aeration cannot be effectively distributed in the water and cannot be fully utilized, resulting in waste of energy consumption. , if the air bubbles are small, the membrane module cannot be effectively cleaned and the filtration efficiency of sewage is reduced. A method is proposed that can effectively use oxygen when treating the same water quality and quantity, improve the treatment effect of the reaction tank, and have high sewage treatment efficiency. low energy consumption integrated membrane bioreactor

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