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Method preparing methane oxidation matrix using waste rubber grain

A technology for methane oxidation and methane oxidizing bacteria, applied in chemical instruments and methods, methane capture, separation methods, etc., can solve the problems of difficult compaction and occupation, achieve developed pores, good air permeability, and reduce global warming potential. potential effect

Inactive Publication Date: 2008-09-03
张相锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Waste rubber is not easy to compact after entering the landfill, occupying valuable landfill storage capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] The waste rubber selected in this embodiment is crushed automobile tires, and the particle size distribution of the rubber particles is 3-5mm.

[0020] (1) Excavate the original covering soil layer in the area of ​​10m×5m on the surface of the landfill;

[0021] (2) be that the cover soil dug out of the sieve screening of 1mm with aperture, get undersieve and waste rubber granule and mix with the volume ratio of 1: 1;

[0022] (3) Add water to adjust the moisture of the mixture to about 30%, and backfill the mixture on the landfill surface;

[0023] (4) leave standstill under the landfill environment, ensure that the substrate is moist, until it is observed that there is a biofilm on the surface of the rubber particles in the mixture;

[0024] (5) dig out mixture, be the sieve sieve mixture of 2mm with aperture, and the thing on the sieve is the waste rubber particle that hangs film;

[0025] (6) Fill the waste rubber granules with film back to the previously excavate...

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Abstract

The invention discloses a method which utilizes waste rubber granules to prepare a methane oxidation substrate, belongs to the technology scopes of waste reclamation and greenhouse gas emission reduction, and has the technical proposal that the waste rubber granules are transplanted and positioned into a natural environment which is rich in methane, oxygen, nutrient and methane-oxidizing bacteria through a mixing way for cultivation, the methane and the oxygen flow through the pores formed by the waste rubber granules, the methane-oxidizing bacteria adheres on the internal and the external surfaces of the waste rubber granules and gradually breeds and grows, a layer of biomembrane which is rich in the methane-oxidizing bacteria is formed on the waste rubber granules, and finally, the waste rubber granules which are adhered with the membrane are separated from the environment which is rich in the methane, the oxygen, the nutrient and the methane-oxidizing bacteria through sieving, thus, the surface of the obtained waste rubber granules which are adhered with the membrane is rich in the methane-oxidizing bacteria, the interiors of the granules as well as the pores among the granules are developed, and the transportation of the methane and the oxygen is facilitated.

Description

technical field [0001] The invention relates to the fields of waste recycling and greenhouse gas emission reduction, in particular to a method for preparing a methane oxidation substrate with waste rubber particles as the main component. Background technique [0002] With methane (CH 4 ) and other greenhouse gas emissions have gradually increased the threat to human beings, such as causing more droughts, floods and other severe weather. As the world's second largest emitter of greenhouse gases, China is facing enormous pressure to reduce emissions. CH 4 The lifetime in the atmosphere is about 12 years, its global warming potential (GWP) is 23 times that of CO2, the contribution rate of additional greenhouse effect is 20%, and the emission reduction of CH 4 It will have an immediate effect. Sources of methane in the atmosphere mainly include: wetlands, rice fields, ruminants, landfills, coal mining, and natural gas leaks. Landfill is CH 4 Important sources of release fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85C08J3/12C08L21/00
CPCY02C20/20Y02A50/20
Inventor 张相锋
Owner 张相锋
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