Pollution obstructing structure and method constructed based on seepage-proofing system

Abstract

The invention relates to a pollution obstructing structure and method constructed based on a seepage-proofing system. The pollution obstructing structure constructed based on the seepage-proofing system comprises a membrane upper infiltration liquid guiding and discharging layer, a membrane upper protective layer, a seepage-proofing layer, a membrane lower protective layer, a compacted soil cushion layer and a compacted garbage layer, and an original garbage layer is covered with the membrane upper infiltration liquid guiding and discharging layer, the membrane upper protective layer, the seepage-proofing layer, the membrane lower protective layer, the compacted soil cushion layer and the compacted garbage layer in sequence from top to bottom. A gas guiding and discharging pipeline is arranged in the compacted soil cushion layer. The outer surface of the gas guiding and discharging pipeline is wrapped with a water seepage sheet. According to the pollution obstructing structure and method constructed based on the seepage-proofing system, construction of a new seepage-proofing system can be completed in a short time, pollution obstructing is achieved, and the difficult problems of time, cost and leakage detecting brought by excavation are avoided; vertical expansion of a landfill is effectively achieved, and pollution hidden dangers in the later running process of the landfill are eliminated; existing pollution is solved mainly through collection and treatment modes; and due to no supplement of new pollution, original pollution can be completely solved after a period of timeso as to achieve the pollution control purpose.

Description

technical field [0001] The invention relates to the technical field of environmental sanitation engineering, in particular to a pollution barrier structure and method based on an anti-seepage system. Background technique [0002] With the continuous development of society and the continuous improvement of people's awareness of environmental protection, the pollution control of domestic waste landfills has attracted more and more attention from the society. At present, landfill is still the main method of waste disposal in China. Most of the landfills are informal landfills, and the leachate directly enters the soil without barriers, causing serious soil pollution and groundwater pollution. As for the sanitary landfills in operation, judging from the actual operation situation, there are a large number of damages and failures of anti-seepage systems in the sanitary landfills currently in use, and the environmental pollution problem needs to be solved urgently. [0003] At pr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a pollution barrier structure and method based on an anti-seepage system to solve the problem of how to avoid further pollution in the polluted site where the original anti-seepage system fails or does not have an anti-seepage system

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