Novel MBFB membrane bioreactor

Abstract

The invention relates to a novel MBFB membrane bioreactor, including an inner barrel and an outer barrel. The inner barrel is located on the lower part in the outer barrel, a gap which isused as a down-flow area is arranged between the inner barrel and the outer barrel, the inner barrel is provided with a channel which is used as an up-flow area, the upper part in the outer barrel is provided witha MBR membrane assembly which is located on the front upper part of the inner barrel, a butterfly aerator is arranged in the inner barrel, the lower end of the inner barrel is connected with a lowerwater collection cover, the lower part of the lower water collection cover is provided with a water inlet pipe, the upper end of the butterfly aerator is connected with a fan located outside of the outer barrel, the lower end of the butterfly aerator is connected with a circulating water pump located outside of the outer barrel, the bottom in the outer barrel is provided with a circulating water outlet pipe which is connected with the circulating water pump, a water outlet of the MBR membrane assembly is connected with the water outlet pipe, and the inner barrel is internally provided with anactivated carbon. According to the novel MBFB membrane bioreactor, the structure is simple, space arrangement is reasonable, membrane pollution is effectively reduced, a back wash period of the membrane assembly is prolonged, the service life of a membrane is prolonged, degradation efficiency of the bioreactor is improved, and energy saving is greatly reduced.

Description

technical field [0001] The invention relates to a bioreactor, in particular to a novel MBFB membrane bioreactor, which belongs to the technical field of sewage treatment. Background technique [0002] With the development of my country's urban scale and the continuous improvement of the degree of industrialization, a large amount of difficult-to-treat industrial sewage and domestic sewage are produced, and sewage treatment plants are facing severe challenges, especially in the field of industrial sewage treatment, with large sewage discharge, complex water quality, and toxicity. Large, ammonia nitrogen and COD are relatively high. The application of biological fluidized bed is becoming more and more widespread. Its advantages are good mixing and mass transfer conditions, and carrier stratification is not easy to occur; the requirements for fluid distributors are relatively low, and it is easy to achieve uniform distribution of fluid; in addition, it also has relatively simple...

AI Technical Summary

Problems solved by technology

[0006] At present, due to the defects of easy pollution and high energy consumption of MBR membrane bioreactor, its application space is greatly limited.

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