Closed self-dredging type biological filter membrane assembly

Abstract

The invention discloses a closed self-dredging type biological filter membrane assembly, and belongs to the technical field of biological reactions. Real-time oxygen supply to microorganisms in a filtering process can be realized without an external aeration device, oxygen only needs to be conveyed into deformed oxygen storage balls before filtration until saturation is achieved, fine filtration and pollutant decomposition are carried out by a self-dredging filter disc in which microorganisms are cultured in this process, the impact effect of water flow makes the oxygen storage balls deform and shake in the process, and energy conversion balls in oxygen storage balls convert kinetic energy into heat energy in real time; the conveyed oxygen is forced to be released from a semi-permeable membrane to the self-dredging filter disc by utilizing the heating expansion characteristic of the gas, so the slow-release oxygen supply effect on the microorganisms is achieved, the gas can more easilydredge pore channels, blocked by pollutants and microorganism metabolites, in the self-dredging filter disc, than water, and the effect of dredging the pore channels can also be achieved during explosion impact of bubbles formed by sewage, thereby the effects of closed filtering and real-time self-dredging are achieved.

Description

technical field [0001] The invention relates to the technical field of biological reactions, and more specifically relates to a closed self-drilling type biological filter module. Background technique [0002] The biofilm reactor is to add various fillers in the reactor to allow microorganisms to attach and grow, so that a layer of biofilm-like structure is formed on the filler. Such a reactor is called a biofilm reactor, and the biofilm method It is one of the main technologies of sewage biological treatment. It is juxtaposed with the activated sludge method. It is both an ancient and a developing sewage biological treatment technology. The biofilm method was developed based on the principle of soil self-purification. [0003] The traditional activated sludge process is widely used in various sewage treatment. Due to the use of gravity sedimentation as a means of solid-liquid separation, it brings many problems. For example, the solid-liquid separation efficiency is not ...

AI Technical Summary

Problems solved by technology

When the membrane module filters the activated sludge mixture for a long time, the pollutants are continuously deposited on the surface of the membrane, and the bacteria continue to multiply into the membrane, causing the metabolites produced to precipitate in the membrane pores, which will cause the membrane pores to be clogged and the membrane to pass through. In addition, life activities such as microbial growth and reproduction require oxygen support, and the existing aeration equipment has high operating costs. Although the intermittent operation method is adopted in the MBR process, the oxygen utilization rate is also low. can be improved, but there are still high energy consumption and oxygen waste, the above two points restrict the further development of biofiltration membranes for sewage treatment

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