Filling method for reducing discharge of methane using wind force intensified ventilation

Abstract

A landfill method for strengthening ventilation and reducing the drainage of methane by taking advantage of wind power relates to a quasi-aerobic garbage landfill process. The landfill method is characterized in that a wind housing (1) is mounted at the tail end of a percolating liquid collecting main pipe (4), wherein, the ratio of an inlet diameter and an outlet diameter equal of the wind housing (1) ranges from to 8:1 to 4:1; a wind cap (2) is mounted at the top end of a vertical air duct (3) and rotates under double drive of external natural wind and difference between internal temperature and external temperature of a landfill body, so as to generate negative pressure and centrifugal force, continuously draw out landfill air in the air duct (3), drive the wind cap (2) at the tail endof the percolating liquid collecting main pipe (4) to continuously suck outside air into a garbage body, thereby forming a sustaining and efficient ventilating system, promoting aerobic decompositionand stability of garbage, and greatly reducing methane discharge. The method consumes no power, thereby greatly reducing the discharge of the quasi-aerobic garbage landfill methane and achieving the energy conservation and the drainage reduction. The invention has the advantages of simple process, convenient disassembly and assembly, low cost, and can be widely applied to domestic garbage landfill yards.

Description

technical field [0001] The invention relates to a landfill method for reducing methane emission by using wind power to enhance ventilation, and relates to a quasi-aerobic landfill process. The landfill method of the invention can realize greenhouse gas emission reduction. technical background [0002] Methane is an important greenhouse gas with a global warming potential (GWP) 23 times that of carbon dioxide, accounting for 20% of global warming. Currently, CH 4 The emission is about 500 million tons, of which 22-36 million tons come from landfill sites, and the control of landfill CH 4 Emissions are an effective measure to control the greenhouse effect. [0003] The quasi-aerobic landfill technology is an economical and mature municipal solid waste treatment method. Its basic structure includes perforated leachate collection pipes and air ducts. The end of the leachate collection pipe communicates with the outside atmosphere; one end of the air guide pipe communicates wi...

AI Technical Summary

Problems solved by technology

At present, air pumps are generally used for forced ventilation, but this increases power consumption and management costs

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