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Method for producing methane biologic oxidation composite base material using waste plastics

A bio-oxidation and composite matrix technology, applied in chemical instruments and methods, separation methods, chemical industry, etc., can solve the problems of occupying landfill storage capacity, low density of waste plastics, difficult to compact, etc., to improve supply capacity, porosity The structure is developed and the effect is not easy to break

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

The density of waste plastics is small, it is difficult to degrade, and it is not easy to compact after entering the landfill, which takes up valuable landfill storage capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] The raw materials selected in this example to prepare the methane oxidation matrix are waste polyethylene and waste sponge.

[0022] (1) waste polyethylene is made into a spherical plastic shell of the following specifications by thermoforming machine, its outer diameter is 30mm, its thickness is 3mm, and the outer diameter of its surface pores is 3mm;

[0023] (2) the waste sponge is made into particles with a particle size distribution of 5 mm to 10 mm by a crusher;

[0024] (3) Fill the waste sponge particles into the spherical plastic shell, and tighten the screw to make the methane oxidizing bacteria carrier;

[0025] (4) Get landfill topsoil and put into the container, add urban domestic sewage in the container and mix evenly;

[0026] (5) Add the prepared methanotrophic bacteria carrier into the container, and feed methane and air until it is observed that there is a biofilm on the surface of the waste sponge particles in the methanotrophic bacteria carrier;

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PUM

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Abstract

The invention discloses a method which utilizes waste plastic to prepare a methane biological oxidation compound substrate, belongs to the technology scopes of waste reclamation and greenhouse gas emission reduction, and has the technical proposal that the hard waste plastic is processed into a spherical plastic shell body with gas pores distributed on the surface thereof through the thermoforming method, and the interior of the spherical plastic shell body is filled with sponge particles; the spherical shell body filled with the sponge particles is positioned into a habitat which is rich in methane, oxygen, nutrient and methane-oxidizing bacteria, the spherical plastic shell body provides external support for the sponge particles and forms large size pores, the methane-oxidizing bacteria is adhered on the sponge particles to breed and grow, biomembranes which are rich in the methane-oxidizing bacteria are formed on the internal and the external surfaces of the sponge, and the sponge particles which are adhered with the membranes form the methane biological oxidation compound substrate together with the spherical plastic shell body.

Description

technical field [0001] The invention relates to the field of waste recycling and methane gas emission reduction in landfills, in particular to a method for preparing a methane biological oxidation composite matrix with waste plastics 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, and its global warming potential (GWP) is CO 2 23 times of that, the contribution rate of the 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 Imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85C08J11/00C08J9/00C08L23/00C08L25/06C08L75/04
CPCY02A50/20Y02P20/50
Inventor 张相锋
Owner 张相锋
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