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Turning flow type methane biological oxidation apparatus

A bio-oxidation and methane technology, applied in biochemical cleaning devices, enzymology/microbiology devices, biochemical equipment and methods, etc. Restrictions and other issues to achieve the effect of reducing global warming potential, prolonging residence time, and significant global environmental effects

Inactive Publication Date: 2007-08-15
张相锋
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings 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 turning flow type Methane biological oxidation device, the invention can be used for reducing methane emissions from concentrated methane emission sources such as landfills and coal mines

Method used

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  • Turning flow type methane biological oxidation apparatus

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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 turning flow methane biooxidation device includes: a reactor, a methane supply system and an air supply system. Specifically, the reactor consists of a methane inlet I-1, an air inlet I-2, a gas mixing chamber I-3, an upper baffle I-4, a gas mixing chamber I-5, and a lower baffle I. -6, exhaust port I-7 and filling medium I-8. Filling medium I-8 is natural sandy soil containing methane-oxidizing bacteria and pores. 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 the device of the present invention is:

[0017] (1) Methane is forced into the gas mixing chamber I-3 through the methane inlet I-1 at the top of the reactor through the fan II-1 and the gas delivery pipe II-2; the air passes through the fan III-1 and the gas delivery pipe III-2, The air i...

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Abstract

The invention discloses a break flowing type methane biological oxidation device in greenhouse gases reduce-discharging technical domain, which is characterized by the following: composing with reactor, methane gas supply system and air supply system; leading methane and air up and down break-flow and mix on the surface of filling medium through gas supply system; providing convenience growing condition for methane oxidizing bacteria of filling medium; prolonging the residence time of methane and oxygen in the device; making methane to dissociate in the device; changing to carbon dioxide; discharging from air exhaust opening.

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): C12M1/00
CPCC12M29/06
Inventor 张相锋
Owner 张相锋
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