A two-way gas collection system for urban landfills

A landfill and urban technology, applied in landfill technology, air quality improvement, solid waste removal, etc., can solve the problems of inability to meet the requirements of gas collection in landfills, reduce work efficiency, and increase working hours, etc. Achieve the effect of being suitable for large-scale promotion and use, improving gas collection efficiency, and increasing service life

CN106238435BInactive Publication Date: 2018-09-21LIAONING UNIVERSITY OF TECHNOLOGY
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-09-21
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an urban landfill of a bidirectional gas collecting system. The urban landfill comprises a plurality of vertical gas collecting pipes, a plurality of horizontal gas collecting pipes and a leachate collection pond. A plurality of vent holes are formed in a pipe body of each vertical gas collecting pipe, and the vertical gas collecting pipes are arranged in the vertical direction of the landfill at equal distance and can collect gas. The horizontal gas collecting pipes communicate with the vertical gas collecting pipes through four-directional pipeline connectors, a plurality of vent holes are formed in a pipe body of each horizontal gas collecting pipe, and the multiple horizontal gas collecting pipes are arranged in the middle of the landfill and can collect gas when the vertical gas collecting pipes cannot collect gas conveniently. The leachate collection pond is arranged on the lower portion of the middle position of the landfill, slopes are arranged on the periphery of the leachate collection pond, and the leachate collection pond can collect leachate fast. The bidirectional gas collecting system is applied in the landfill for garbage collection and can collect gas in the horizontal direction and the vertical direction at the same time, and the gas collecting efficiency is improved; and the gas collecting pipes are stressed in a criss-cross manner so that uniformity can be achieved, the service life period of the gas collecting system is prolonged, and the gas collecting system is suitable for collecting gas in the large garbage landfill.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an urban landfill with a two-way gas collection system, which belongs to the field of garbage landfill. Background technique

[0002] Landfill is an ancient method of dealing with domestic waste that has been continuously used by humans. In my country, most of the municipal solid waste is collected centrally and then transported to one or more landfill plants owned by the local city government for landfill treatment. Landfill gas is a mixed gas continuously produced during the biodegradation process of urban solid waste gas and solid waste, mainly including methane, nitrogen, hydrogen and carbon dioxide. Among them, both methane and carbon dioxide are greenhouse gases, and methane is prone to fire and explosion when its volume concentration reaches 5% to 15% under aerobic conditions. In addition, if the landfill gas is not collected properly, the high air pressure in the landfill will also lead to instability and destruction ...

Examples

Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0028] Such as Figure 1-4 As shown, the present invention provides an urban landfill of a two-way gas collection system, comprising: a vertical gas collection pipeline 110, arranged in a vertical shaft of the landfill, the pipe wall of the vertical gas collection pipeline 110 There are a plurality of ventilation holes on the top, and the horizontal gas collection pipe 120 is arranged in the blind ditch in the horizontal direction in the middle of the landfill, and is connected with the vertical gas collection pipeline through the four-way pipeline interface 111 to form a two-way gas collection system, which can Meet the needs of landfills for gas collection in different situations and improve the gas recovery rate. Since the upper and lower ends have a relatively low impact...