Efficient short-cut denitrification MBR membrane biological treatment device and method

Abstract

The invention discloses an efficient short-cut denitrification MBR membrane biological treatment device and method. The device comprises an anoxic tank and an aerobic tank, wherein cathode and anode plates are arranged in the anoxic tank, an MBR membrane assembly is arranged in the aerobic tank, and the anoxic tank and the aerobic tank form a circulating system through reflux. The invention further discloses the efficient short-cut denitrification MBR membrane biological treatment method. By introducing a micro electric field into an MBR, the community structure and living environment of living things in a membrane bioreactor are changed, beneficial high-activity floras are stimulated, the generation exchange period of the beneficial high-activity floras is prolonged, and the standing time during sewage treatment is shortened; meanwhile, electron carriers stimulated by an electrochemical system can serve as inhabit sites and medium carriers of microorganisms, so that a good pollutant degradation effect is achieved; and by utilizing an SE-MBR, the microbial activity is promoted, the filtering performance of the membrane is improved, the membrane pollution is retarded, and the sewage treatment efficiency is improved.

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