Venturi self-circulation negative-pressure drainage system of refuse landfill

Abstract

The invention discloses a Venturi self-circulation negative-pressure drainage system of a refuse landfill. The Venturi self-circulation negative-pressure drainage system is characterized by comprising a plurality of negative-pressure drainage wells, a main drainage pipe, a Venturi pipe and a self-circulation power water system, the negative-pressure drainage wells are arranged in piles of the refuse landfill and are connected with one another by the main drainage pipe, and the other end of the main drainage pipe is connected with the self-circulation power water system by the Venturi pipe; the Venturi pipe is driven by the self-circulation power water system to generate high vacuum, so that insides of the negative-pressure drainage wells are in negative-pressure states, the negative-pressure states of the inside of the negative-pressure drainage wells are maintained, and drainage of water in the piles is accelerated. Power is provided by the self-circulation power water system, the vacuum is generated in the Venturi pipe, and the insides of the negative-pressure drainage wells are driven to be in the negative-pressure states, so that drainage of the water in the refuse piles is promoted. The Venturi self-circulation negative-pressure drainage system has the advantages of low engineering cost, short construction period, high drainage speed, convenience in inspection and maintenance, and the like.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a sewage guiding system and a method for controlling the water level of a garbage dump under low-permeability conditions in a garbage landfill, in particular to a Venturi self-circulating negative pressure drainage system and a drainage system for a garbage landfill. method. Background technique [0002] Sanitary landfill is the most important disposal method of municipal solid waste in my country. Due to the high water content of municipal solid waste in my country and the reduction of permeability coefficient after mechanical compaction of waste, it is difficult for the sewage generated by the upper layer of waste to infiltrate into the sewage collection system at the bottom of the site, resulting in a high water level in the waste dump. In the sanitary landfill in southern my country, a large amount of rainwater infiltrates into the garbage dump during the rainy season...

AI Technical Summary

Problems solved by technology

However, there are deficiencies in both. The horizontal sewage guide channel is prone to uneven settlement and failure; the drainage depth of the gas lift drainage method is limited, and the energy consumption increases significantly with the increase of the drainage depth.

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