Gas-lifting type two-phase partition membrane bioreactor

Abstract

The invention provides a gas-lifting type two-phase partition membrane bioreactor and belongs to the technical field of industrial organic waste gas purification. The bioreactor comprises a shell, a gas inlet and an exhaust funnel; the bioreactor is characterized in that the gas inlet is formed in the center of the upper end of the shell, and the exhaust funnel is arranged at the upper end of the shell; the shell is internally provided with a tail gas area, a microorganism reaction area and an aqueous phase area in sequence from top to bottom, the exhaust funnel is communicated with the tail gas area, and a biological membrane is arranged between the microorganism reaction area and the tail gas area; the shell is further internally provided with a gas pipe, the gas pipe is arranged at the central axis of the shell and sequentially penetrates through the tail gas area, the biological membrane and the microorganism reaction area, the upper end of the gas pipe is communicated with the gas inlet, and the lower end of the gas pipe is located at the bottom of the aqueous phase area. The bioreactor combines characteristics of the two-phase partition biotechnology and characteristics of the membrane biotechnology, is compact, simple, novel in structure and high in innovation, has the advantages of being thorough in destruction, free of secondary pollution, comparatively simple in procedure and the like and is an ideal organic waste gas purification means.

Description

technical field [0001] The invention relates to an air-lift two-phase distribution membrane bioreactor, belonging to a new technical field of purification of industrial organic waste gas. technical background [0002] At present, the treatment of organic waste gas has attracted more and more attention, and has become one of the key points in the control of air pollution. There are various methods for purifying organic waste gas, but there are certain deficiencies in them: different oxidants in the adsorption method change Different adsorbents have different adsorption capacity for organic waste gas, and the price of adsorbent is more expensive; direct combustion method and catalytic combustion method have higher investment and operating costs, and are not suitable for the treatment of more common low-concentration and high-flow organic waste gas; The absorption method is difficult to treat organic waste gas with stable chemical properties and insoluble in water; the biologic...

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Problems solved by technology

[0004] The present invention aims at the deficiencies of the above-mentioned prior art, and provides an air-lift two-phase distribution membrane bioreactor, which combines two-phase distribution biotechnology and membrane biotechnology, and solves the problem of low purification efficiency and poor application of common organic waste gas purification devices. Issues such as small scope and exhaust emissions not meeting higher standards

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