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Air supply system and method for accelerating methane biological oxidation

A technology of biological oxidation and air supply, applied in biochemical equipment and methods, biochemical cleaning equipment, bioreactor/fermenter combination, etc., can solve the problem of affecting the activity of methane oxidizing bacteria, the decrease of methane oxidizing bacteria activity, and the lack of oxygen supply To achieve the effect of reducing global warming potential, significant global environmental effects, and reducing ventilation rate

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

Its defect is that the oxygen supply of the reactor is completed once, and the oxygen is continuously consumed during the flow along the filling medium, resulting in an excessive supply of oxygen in the air inlet area of ​​the reactor and a lack of oxygen supply in the gas outlet area; the oxygen in the inlet area is long-term Excessive amount will promote the growth of microbial extracellular polymer (EPS). EPS is easy to block the pores and affect the gas flow, thereby causing the activity of methane-oxidizing bacteria to decline. This is also the main reason why the methane oxidation efficiency of many biological oxidation devices begins to decline after a long period of operation. Reason; Insufficient oxygen supply in the outlet area affects the activity of methane-oxidizing bacteria

Method used

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  • Air supply system and method for accelerating methane biological oxidation

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[0019] Fig. 1 shows the schematic structure of the present invention. It can be seen from Fig. 1 that the air supply system for promoting methane biooxidation of the present invention is used in conjunction with methane biooxidation reactors. Specifically, the air supply system consists of fan II-1, air pipe II-2, valves (II-3, II-5, II-7) and oxygen concentration measuring instruments (II-4, II-6, II-8 , II-9) composition.

[0020] Working method of the present invention is:

[0021] (1) Connect fan II-1, air pipe II-2 and valves (II-3, II-5, II-7) in sequence;

[0022] (2) Connect the air inlets (I-2, I-3, I-4) of each section of the reactor to the corresponding valves (II-3, II-5, II-7), and the valve II-3 keeps Fully open, valve II-5 and valve II-7) are fully closed;

[0023] (3) The methane oxidation medium I-6 is loaded into the reactor;

[0024] (4) Install the oxygen measuring instrument (II-4, II-6, II-8) on the central part of the reactor section above the air i...

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Abstract

The invention discloses an air supply system to accelerate methane biological oxidation in greenhouse gases reduce-discharging domain, which is characterized by the following: depending on methane biological oxidizing reactor; dividing to multiple multistage followed with gas-flowing direction; settling separated air inlet port and assembling oxygen measurement set on each stage; composing air supply system with fan, gas pipe line and valve; connecting air supply system and reactor with air inlet port; providing air for each stage with oxygen measurement set and valve; dropping oxygen supply of air inlet port area; improving oxygen supply of outlet port area; reinforcing methane biological oxidation even property in the device; increasing stability of the device.

Description

technical field [0001] The invention relates to greenhouse gas emission reduction technology, in particular to an air supply system and method for promoting methane biological oxidation. 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 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/04
CPCC12M41/34C12M29/24
Inventor 张相锋
Owner 张相锋
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