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Fly-ash landfill area seepage control system

A landfill and fly ash technology, applied in protection devices, gaskets, buildings, etc., can solve the problems of easily polluting groundwater, single structure of fly ash landfill, and polluting the environment

Pending Publication Date: 2019-04-05
SHANGHAI SUS ENVIRONMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The structure of the existing fly ash landfill is single, and the leachate of the landfill seeps into the land, which easily pollutes groundwater and the environment

Method used

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  • Fly-ash landfill area seepage control system

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Embodiment Construction

[0011] Such as figure 1 As shown, the structure diagram of the anti-seepage system of the fly ash landfill reservoir area of ​​the present invention, from top to bottom, consists of leachate collection and drainage system 1, primary anti-seepage layer 2, seepage detection layer 3, and secondary anti-seepage layer 4. The foundation layer 5 and the groundwater collection and drainage system 6 constitute. The leachate collection and drainage system 1 is composed of a 300mm thick pebble diversion layer, covered with 200g / m 2 Geotechnical filter; the main impermeable layer 2 consists of 600g / m 2 Non-woven geotextile and 2.0mm thick HDPE film; leakage detection layer 3 is composed of 6.3mm thick geocomposite drainage net; secondary anti-seepage layer 4 is 600g / m 2 It is composed of non-woven geotextile and 1.5mm thick HDPE film; foundation layer 5 is composed of 500mm thick compacted soil protection layer; groundwater collection and drainage system 6 is composed of pebble diversion la...

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Abstract

The invention relates to a fly-ash landfill area seepage control system. Leachate produced by a fly-ash landfill is guided and collected by a leachate collecting and drainage guiding system, a seepagecontrol system is arranged under the leachate collecting and drainage guiding system and designed to be a lining system composed of a main seepage control layer and an auxiliary seepage control layer, and a drainage layer is arranged between the main seepage control layer and the auxiliary seepage control layer to guide drainage of liquid and gas of the seepage control layers; above an upper seepage control membrane is provided with a protective layer and another drainage layer, and under a lower seepage control membrane is provided with an underground water collecting system. The fly-ash landfill area seepage control system is composed of, sequentially from top to bottom, the leachate collecting and drainage guiding system, the main seepage control layer, a seepage detecting layer, the secondary seepage control layer, a foundation layer and an underground collecting and drainage guiding system.

Description

Technical field [0001] The invention relates to an anti-seepage system for a fly ash landfill reservoir area. Background technique [0002] The conventional domestic waste incineration plant fly ash treatment method is to solidify the fly ash and then safely landfill it. However, as the times change, the requirements for sanitary landfill and purification functions of fly ash landfills are becoming more and more stringent. The design of the anti-seepage system for the fly ash landfill reservoir area has become a major problem. [0003] The existing fly ash landfill has a single structure, and the landfill leachate penetrates the land, which easily pollutes groundwater and the environment. Summary of the invention [0004] The invention is an anti-seepage system for a fly ash landfill reservoir area, which aims to guide and collect the leachate generated in the fly ash landfill to prevent the leachate from penetrating the ground, polluting groundwater and polluting the environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/00
CPCE02D31/00E02D2300/0009E02D2300/0065E02D2300/0089E02D2450/108E02D2450/106
Inventor 陆钧皓冯淋淋劳云枫刘露孙中涛刘焕联毛梦梅白力戴勇许力
Owner SHANGHAI SUS ENVIRONMENT