Automatic-control-based denitrifying methane anaerobic oxidizing bacteria enrichment system

Abstract

The invention discloses an automatic-control-based denitrifying methane anaerobic oxidizing bacteria enrichment system, which comprises a methane inlet gas flow meter, an argon inlet gas flow meter, an outlet gas flow meter, a methane inlet automatic regulating valve, an argon inlet automatic regulating valve, a water inlet automatic regulating valve, an acid and alkali liquor input automatic regulating valve, a flange, a dissolved oxygen probe, a pH probe, a methane probe, a mechanical stirring blade, a reactor main body, a gas uniform distributor, a dissolved oxygen alarm, a methane alarm, a data acquisition and analysis regulating device, a biomass interceptor and a reflux pump. The invention has the advantages that: 1) the system is provided with the gas uniform distributor and the mechanical stirring blade, so that a substrate can be fully mixed with microorganisms easily, and high-efficiency enrichment is realized; 2) parameters are monitored and fed back in real time in an automatic control mode, the normal operation of the enrichment system is ensured, and manpower is reduced simultaneously; 3) the system is provided with the biomass interceptor, so that biomass is prevented from being lost; and 4) the system has a concise structure and is easy to process and convenient to universally apply.

Description

technical field [0001] The invention relates to a denitrification type methane anaerobic oxidation bacteria enrichment system based on automatic control. 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 greenhouse effect it causes is equimolar 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, the anaerobic oxidation of methane plays a role that cannot be ignored in the process of global methane emission control, and it effectively alleviates the increasingly serious greenho...

AI Technical Summary

Problems solved by technology

[0008] The denitrification-type anaerobic oxidation of methane is usually limited to regions characterized by sharp gradients, so that the reaction occurs only in the range of a few millimeters, making the process difficult to detect

Moreover, the growth of functional microorganisms for denitrifying anaerobic methane oxidation is extremely slow, and the cell doubling time can be as long as more than one month, so it is difficult to obtain an enriched culture that catalyzes this process

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