Landfill gas horizontal transverse well gas collection and leachate reverse drainage system and method

Abstract

The invention relates to a landfill gas horizontal transverse well gas collection and leachate reverse drainage system. The system comprises horizontal transverse wells which are positioned below a garbage heap body and arranged in the height direction of the heap body at intervals, wherein the horizontal transverse wells are horizontally arranged at intervals; well heads are arranged on a side slope of a landfill site operation area; the well heads of the horizontal transverse wells are connected with a landfill gas collection pipeline and a leachate reverse drainage ditch correspondingly; the horizontal transverse wells are sleeved with protective sleeves; and small holes are formed in the outer walls of the horizontal transverse wells and the outer walls of the protective sleeves in advance. A construction method comprises the steps of excavation of the gas collection pipeline, installation and burying of the protective sleeves and the horizontal transverse wells, construction is rapid and convenient, and a use method of the system comprises the step that landfill gas or leachate can be collected by adjusting a control valve. According to the landfill gas horizontal transverse well gas collection and leachate reverse drainage system and method, the problems that in an existing gas exhaust and leachate collection method, a vertical well is prone to deformation along with rising of the height of the heap body, and the well heads are positioned above the heap body, so that landfill operation is affected can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of landfill gas-liquid treatment, in particular to a landfill gas horizontal horizontal well gas collection and leachate inversion system and method. Background technique [0002] The collection of landfill gas and the discharge of leachate in domestic waste landfills have always been the key issues that plague landfill operations. The timely and efficient collection of landfill gas and the timely discharge of leachate are related to the smooth operation of the landfill site. The stability and safety of landfill and landfill piles also provide reliable guarantee for the effective disposal of leachate. Reasonable arrangement of landfill gas and leachate inversion system can also stabilize the foundation of the landfill site and increase the effective storage capacity of the landfill site. . [0003] The invention patent with the publication number CN102191166A discloses a landfill gas drainage and collection...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a landfill gas horizontal horizontal well gas collection and leachate inversion system and method, which can effectively solve the problem that the vertical shaft is easily deformed with the increase of the height of the pile, and the well Problems with heads above the pile that impact landfill operations

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