Landfill gas horizontal horizontal well gas collection and leachate inverted system and method

Abstract

The invention relates to a landfill gas horizontal horizontal well gas gathering and reverse leachate system, comprising horizontal horizontal wells located below a garbage dump body and arranged at intervals along the height direction of the stack body, the horizontal horizontal wells are arranged horizontally at intervals, and the well heads are arranged at the filling level. On the slope of the landfill operation area, the wellhead of the horizontal horizontal well is respectively connected with the landfill gas collection pipeline and the leachate infiltration ditch. The outer casing of the horizontal horizontal well is provided with a protective casing, and the outer wall of the horizontal horizontal well and the protective casing are all preset with small holes; and the construction The method includes the excavation of the gas gathering pipeline, the installation and burying of the protective casing and the horizontal horizontal well, and the construction is fast and convenient. The system and method for gas collection and reverse drainage of leachate in horizontal horizontal wells of landfill gas provided in the above technical solutions can effectively solve the problem that the existing vertical wells in the existing exhaust gas and leachate collection methods are easily deformed as the height of the stack increases, and the wellhead is located at the top of the pile. Problems that affect landfill operations above the heap.

Description

Landfill gas horizontal horizontal well gas gathering and inverted leachate system and method technical field The present invention relates to landfill gas-liquid processing technology field, be specifically related to a kind of landfill gas horizontal horizontal well gas gathering and reverse discharge Leachate system and method. Background technique The collection of landfill gas and the inversion of leachate in domestic waste landfills have always been the key problems that plagued landfill operations. The timely and efficient collection of landfill gas and the timely reverse discharge of leachate are related to the smooth progress of the landfill site and the landfill body. It is stable and safe, and also provides a reliable guarantee for the effective disposal of leachate, and rationally arranges landfill gas and leachate reverse discharge The system can also stabilize the foundation of the landfill site and increase the effective storage capacity of the landfil...

AI Technical Summary

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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