Replaceable tailing pond leachate in-situ repair system and method
An in-situ repair and tailings pond technology, applied in the field of leachate in-situ repair systems, can solve problems such as poor replacement of PRB filter materials, construction process, media material blockage, PRB failure, etc., to protect against collapse and deformation, construction Simple and uniform overall effect
Active Publication Date: 2021-06-22
HUNAN UNIV OF SCI & TECH +1
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problems of PRB failure due to media material clogging in the existing PRB technology, difficult replacement of traditional PRB filter materials and complicated construction technology. A system and method for in-situ remediation of leachate from a replaceable tailings pond
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[0034] see Figure 1 to Figure 4 Shown:
[0035] The in-situ repair system for the leachate of the replaceable tailings pond provided by the present invention includes a retaining wall 1, a T-shaped pile 2 and a protective layer 3, wherein the retaining wall 1 is arranged on the foundation, and the T-shaped pile 2 is provided with several , the tail ends of several T-shaped piles 2 are embedded in the retaining wall 1, the protective layer 3 is assembled in the gap at the head end of the adjacent T-shaped pile 2, the rear end surface of the protective layer 3 and the head end of the T-shaped pile 2 Corresponding to the setting of the polluted ore heap 4, a filter layer 5, a mesh grid 6 and an anti-filter layer 7 are sequentially arranged between the front end surface of the protective layer 3 and the rear end surface of the retaining wall 1.
[0036] The upper part of the retaining wall 1 is pierced with an upper drainpipe 8, and the lower part of the retaining wall 1 is pierce...
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The invention discloses a replaceable tailing pond leachate in-situ repair system and method. The repair system comprises a retaining wall, a plurality of T-shaped piles and protective layers, wherein the retaining wall is arranged on a foundation, the tail ends of the T-shaped piles are all embedded into the retaining wall, the protective layers are assembled in gaps between the head ends of the adjacent T-shaped piles, the rear end faces of the protection layers and the head ends of the T-shaped piles correspond to a polluted ore heap, and a filtering layer, a net-shaped grating and an inverted filtering layer are sequentially arranged between the front end faces of the protection layers and the rear end face of the retaining wall. The method comprises the following steps of S1, surveying on site; S2, selecting a proper filtering material; S3, pouring the retaining wall; S4, mounting a frame of the system; S5, prefabricating a box body of a filtering material; S6, covering a top cover; and S7, replacing the filtering material. The method has the beneficial effects that the construction difficulty is reduced, the usability is high, and construction is simple, the reliability is high, the filtering efficiency is improved, the cost is saved, and the integrality is good.
Description
technical field [0001] The invention relates to an in-situ restoration system and method for leachate, in particular to an in-situ restoration system and method for replaceable tailings reservoir leachate. Background technique [0002] At present, researchers at home and abroad have conducted long-term exploration and discussion on the removal of heavy metals in groundwater. In 1982, the U.S. Environmental Protection Agency (EPA) began to propose PRB technology and its concept, but it has not been practically studied until 1989, when relevant scholars at the University of Waterloo in Canada conducted PRB experimental research, and the method was deeply developed. . Since then, the PRB system has been applied to various groundwater treatment projects and widely supported. According to the different characteristics of pollutants, PRB technology can not only deal with difficult biodegradable organic matter, but also deal with a variety of heavy metal pollution. Scholars from...
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IPC IPC(8): E02D29/02E02D5/22E02D3/10E03F3/04B01D36/02
CPCE02D29/02E02D5/22E02D3/10E03F3/046B01D36/02
Inventor 曾兴高桐黄宽心刘幸庭李裕恒
Owner HUNAN UNIV OF SCI & TECH