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Ecological anti-seepage partition method for surface layer of acid metal mine solid waste stock dump

A surface and metal technology, applied in the anti-seepage and isolation field of the surface of the accumulation, can solve the problems of secondary pollution, harmful substances entering rivers and groundwater, etc., to expand the variety, reduce the risk of secondary pollution, and have good tensile and compressive properties Effect

Active Publication Date: 2014-03-19
江苏绿之源生态建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the main substances of the accumulation are weathered and leached by rainfall, harmful substances can easily enter rivers and groundwater with precipitation, causing secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Example 1 No. 1 experimental area of ​​ecological restoration of a copper mine slag dump in Jiangxi

[0020] (1) prepare filling material; described filling material comprises the composition of following percentage by weight: bentonite 5%, diatomite 5%, vermiculite 5%, acidic soil conditioner 14%, plant fiber 10%, microbial compost 5%, Soil stabilizer 2% and soil 54%. The filling material is sprayed onto the surface layer of the accumulation body by a dry spray machine, and mixed with water at the spray port, and the solid-water ratio is 7:3;

[0021] (2) Surface void filling: fill the slurry filling material on the surface of the accumulation body, with an average thickness of 3cm;

[0022] (3) Preparation of anti-seepage isolation material: the anti-seepage isolation material includes the following components in weight percentage: 8...

Embodiment 2

[0025] Example 2 No. 2 experimental area of ​​ecological restoration of a copper mine slag dump in Jiangxi

[0026] (1) prepare filling material; described filling material comprises the composition of following percentage by weight: bentonite 8%, diatomite 8%, vermiculite 5%, acid soil conditioner 10%, plant fiber 10%, microbial compost 10%, Soil stabilizer 1% and soil 48%. The filling material is sprayed onto the surface layer of the pile by a dry spray machine, and mixed with water at the spray port, and the solid-water ratio is 8:2;

[0027] (2) Surface void filling: fill the slurry filling material on the surface of the accumulation body, with an average thickness of 5cm;

[0028] (3) Preparation of anti-seepage isolation material: the anti-seepage isolation material includes the following components in weight percentage: 90% of ecological sand, 10% of water-soluble polyurethane resin (W-OH) solution, wherein the concentration of W-OH solution is 8%;

[0029] (4) Anti-s...

Embodiment 3

[0031] Example 3 No. 5 experimental area of ​​ecological restoration of a copper mine slag dump in Jiangxi

[0032] (1) prepare filling material; described sealing material comprises the composition of following percentage by weight: bentonite 10%, diatomite 10%, vermiculite 8%, acidic soil conditioner 15%, plant fiber 10%, microbial compost 15%, Soil stabilizer 2% and soil 30%. The filling material is sprayed onto the surface layer of the pile by a dry spray machine, and mixed with water at the spray port, and the solid-water ratio is 9:1;

[0033] (2) Surface void filling: fill the slurry-like sealing material onto the surface of the accumulation body, with an average thickness of 7cm;

[0034] (3) Preparation of anti-seepage isolation material: the anti-seepage isolation material includes the following components in weight percentage: 90% of ecological sand, 10% of water-soluble polyurethane resin (W-OH) solution, wherein the concentration of W-OH solution is 15%;

[0035...

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Abstract

The invention provides an ecological anti-seepage partition method for a surface layer of a stocking body, and the method comprises the following steps of: preparing a filling material; filling a gap on the surface layer: jetting the filling material into the gap on the surface layer of the stocking body, so that an ecological filling layer is formed; preparing an anti-seepage partition material; and carrying out anti-seepage partition on the surface layer: evenly jetting and absorbing the anti-seepage partition material on the surface layer of the filled stocking body, so that a flexible anti-seepage partition layer can be formed. The anti-seepage partition method for the surface layer of the acid metal mine solid waste stock dump provided by the invention can be used for ecologically filling and sealing the surface layer of the stocking body, adjusting the pH value of the substance on the surface layer of the stocking body by adding alkaline substances, building a semi-permanent flexible anti-seepage partition layer, effectively reducing the leaching function of the falling water to the solid waste toxic and harmful substance, reducing the risk of secondary pollution, and providing a good base for the follow-up environmental pollution improvement and vegetation recovery.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to anti-seepage isolation of solid waste piles in non-ferrous metal mines and vegetation restoration in acid metal mines, in particular to a method for anti-seepage isolation of the surface layer of accumulation bodies. Background technique [0002] Incidents such as "arsenic poisoning", "blood lead", and "cadmium rice" have occurred frequently, making heavy metal pollution one of the most concerned public events. At present, due to the mining, smelting, and processing of heavy metals in our country, many heavy metals such as lead, mercury, cadmium, and cobalt enter the atmosphere, water, and soil, causing serious environmental pollution. Environmental pollution caused by heavy metals or their compounds is extremely harmful to the environment and organisms. At the same time, it is easy to accumulate through the food chain, which has attracted great attention from scientists all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B1/00
Inventor 祁有祥辜再元倪俊王京燕杨晓冬李启龙
Owner 江苏绿之源生态建设有限公司
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