Magnetic-stirring gas-rising internal circulation denitrification type methane anaerobic oxidation bacterium enrichment device and method

Abstract

The invention discloses a magnetic-stirring gas-rising internal circulation denitrification type methane anaerobic oxidation bacterium enrichment device and method. The device comprises a reactor body, a reaction vessel, a reactor cover plate, a flow guiding cylinder, an effluent biomass entrapping ring an aeration pipe, wherein the reactor body is divided into a gas rising region and a liquid falling region by the flow guiding cylinder, the gas rising region is located between the reaction vessel and the flow guiding cylinder, the effluent biomass entrapping ring is arranged at the upper part of the gas rising region, the aeration pipe is arranged at the bottom part of the gas rising region, the liquid falling region is located inside the flow guiding cylinder, a temperature probe is arranged at the upper part of the liquid falling region, a stirring magneton is arranged at the bottom part of the liquid falling region, and the stirring magneton and the temperature probe are controlled by a constant temperature magnetic stirrer. According to the invention, a gas-rising type reactor and a magnetic stirring reactor are ingeniously combined, thus the mass transfer area is enlarged, the transfer performance is enhanced, the enrichment efficiency is increased, the cyclic utilization of methane gas is realized, the utilization rate of methane is improved, and the discharge amount ofexhaust gas is reduced.

Description

technical field [0001] The invention relates to a magnetic stirring air-lift type internal circulation denitrification type methane anaerobic oxidation bacteria enrichment device and method. Background technique [0002] As an important energy source, methane plays an important role in human production and life. At the same time, methane is the most abundant hydrocarbon in the atmosphere, and its contribution to global warming is second only to CO 2 , the current "contribution rate" to global warming reaches 15%, and the greenhouse effect it causes is equivalent to mole CO 2 20 to 30 times of that. It is reported that 85% of the world's annual methane production and 60% of its consumption are based on the action of microorganisms. Anaerobic oxidation of methane by microorganisms can make most of the methane gas (more than 90%) be consumed in large quantities before entering the atmosphere. Therefore, anaerobic methane oxidation plays a role that cannot be ignored in the ...

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of existing devices such as low enrichment efficiency, high energy consumption, poor sealing performance, poor mixing transfer performance, etc., and provide a magnetic stirring airlift type internal circulation denitrification type methane anaerobic oxidation bacteria enrichment device and method

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