Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for garbage disposal

A technology for waste treatment and waste, applied in the direction of biomass post-treatment, biomass pre-treatment, biochemical equipment and methods, etc., can solve the problems of reduced methane production and long waste treatment time, and achieve the acceleration and improvement of the methanation process. Oxygen utilization efficiency, the effect of meeting the requirements of industrialization

Inactive Publication Date: 2015-09-09
PEKING UNIV SHENZHEN GRADUATE SCHOOL
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method and system for garbage treatment, which can solve the problems in the prior art that the amount of methane produced decreases when the upper aeration frequency is high and the garbage treatment time is longer when the upper aeration frequency is low.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for garbage disposal
  • Method and system for garbage disposal
  • Method and system for garbage disposal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] The inventors found that the large-frequency constant aeration method can speed up the degradation of garbage, which is conducive to the rapid establishment of a methanation environment, but the carbon loss is also relatively large. The low-frequency constant aeration method can reduce the oxygen utilization rate and consumption to a small extent. too long.

[0043] Such as figure 1Shown is the comparison chart of oxygen utilization rate when the number of aeration is 2 and the number of aeration is 4. In the figure, the aeration frequency of simulated bioreactor C1 in the landfill site is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a method for treating wastes. The method comprises the following steps: a. obtaining the upper aeration environment in a bioreactor, setting the aeration times and the time of every aeration, and carrying out upper aeration treatment; b. after completing upper aeration for the set aeration times, detecting the pH value of percolate in the bioreactor; c. stopping upper aeration when the pH value of the percolate is more than 7, collecting methane generated in the bioreactor, and executing the next step after completing collection; d. resetting the aeration times and the time of every aeration when the pH value of the percolate is less than 7, then carrying out upper aeration treatment and returning to the step b; d. restarting and executing upper aeration once and degrading the wastes. The embodiment of the invention also discloses a system for treating wastes. By adopting the method and system disclosed by the embodiment of the invention, the problems that the methane yield is reduced when the upper aeration frequency is relatively high and the waste treatment time is relatively long when the upper aeration frequency is relatively low in the prior art are solved.

Description

technical field [0001] The invention relates to the fields of environmental protection technology and new energy development and utilization, in particular to a method and system for garbage disposal. Background technique [0002] With the rapid development of social economy, the amount of municipal solid waste is increasing year by year. By 2004, China has surpassed the United States to become the country with the largest amount of waste in the world, and it is expected to increase year by year with an annual growth rate of 150%. This in turn restricts the progress of urbanization. So far, my country's annual domestic waste production is 160 million tons (2011), and more than 2 / 3 of the cities are facing the problem of garbage siege. How to realize waste reduction, recycling and harmlessness has become a modern scientific research the key of. Trash is a misplaced resource. Municipal solid waste is rich in organic matter. When the waste is degraded, it can generate a large...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12P5/02C12M1/34C12M1/107C12M1/04
CPCY02E50/343Y02E50/30
Inventor 徐期勇田颖
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com