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Multi-layer vertical flow methane biological oxidation device

A biological oxidation and methane technology, applied in chemical instruments and methods, separation of dispersed particles, air quality improvement, etc., can solve the problems of easy short flow of methane biological oxidation device, poor oxygen free diffusion ability, high density of filling medium, etc., to achieve Effects of reducing global warming potential, facilitating flow, and reducing self-weight

Inactive Publication Date: 2007-10-17
张相锋
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor oxygen free diffusion ability in natural soil, easy short flow of existing methane biooxidation devices, uneven gas mixing, high filling medium density and limited reactor height, and provide a multi-layer vertical A flow-type methane biological oxidation device, the invention can be used for methane emission reduction of concentrated methane emission sources such as landfills and coal mines

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  • Multi-layer vertical flow methane biological oxidation device

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Embodiment

[0015] Fig. 1 shows the schematic structure of the present invention. It can be seen from Figure 1 that the multi-layer vertical flow methane biooxidation device includes: a reactor, a methane supply system and an air supply system. Specifically, the reactor consists of methane inlet I-1, gas distribution layer I-2, air inlet I-3, filling medium I-4, gas distribution layer I-5, filling medium I-6, cloth Air layer I-7, filling medium I-8 and exhaust port I-9 constitute. The air distribution layer I-2, the air distribution layer I-5 and the air distribution layer I-7 are lightweight porous ceramsite. Filling medium I-4, filling medium I-6 and filling medium I-8 are mixtures of forest soil surface loam containing methane-oxidizing bacteria and pores and lightweight porous ceramsite (the mixing ratio is 1:1). The methane supply system consists of blower II-1 and gas pipeline II-2. The air supply system consists of fan III-1 and air pipe III-2.

[0016] The course of work of th...

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Abstract

The invention discloses a multilayer vertical methane biological oxidation device, relating to the technical field of greenhouse gasses abatement, wherein the device is composed of a reactor, methane supply system and air supply system. Methane and air is forcibly led to flow along the pores of filling medium up to down in the device by the gas supply system. Plurality of gas-arranging layers are vertically mounted in the reactor to realize the frequent mixing for the gas to reduce the short flow of the gas, provide growth advantage for methane oxidation bacteria in the filling medium, and make the methane to be continuously decomposed in the device to transform into CO2 and discharge from the outlet at last.

Description

technical field [0001] The invention relates to greenhouse gas emission reduction technology, in particular to a methane biological oxidation device. Background technique [0002] Global warming caused by the continuous increase of greenhouse gases (such as carbon dioxide, methane, N2O, etc.) has become a major environmental issue of concern to the world. Among them, methane has a global warming potential (GWP) 23 times that of carbon dioxide, accounting for 20% of the global warming share. The lifetimes of greenhouse gases in the atmosphere are 120 years for carbon dioxide, 12 years for methane, and 114 years for N2O. It can be seen that compared with controlling other greenhouse gases, reducing methane emissions will have an immediate effect. Sources of methane in the atmosphere mainly include: wetlands, rice fields, ruminants, landfills, coal mining, and natural gas leaks. The presence of methane-oxidizing bacteria in the soil can oxidize methane into carbon dioxide an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85
CPCY02A50/20
Inventor 张相锋
Owner 张相锋
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