Method for purifying surface of tailings reservoir and ecologically restoring linear stonecrop herb

A technology of ecological restoration and S. japonica, applied in the field of tailings treatment, can solve problems such as the difficulty in raising funds for the comprehensive utilization of tailings, the difficulty in secondary utilization of tailings, and the inability to improve the ecological environment, etc., to achieve ecological balance and social sustainability. Sustained development, improvement of secondary utilization rate, and effect of reducing rainwater infiltration

Inactive Publication Date: 2010-07-07
WUHAN LITI GREENING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Consolidation method: usually cement curing, asphalt curing and heavy metal fixatives are used, and it is not easy to restore ecological greening
[0007] The above-mentioned three tailings treatment methods of reclamation, filling and consolidation not only cost a lot of treatment, but also fail to improve the ecological environment, and make it difficult for the secondary utilization of tailings
Although my country has already established engineering technology research on the secondary utilization of tailings resources, the research direction focused on individual enterprises has not been taken seriously, there is no special fund investment, the financing channels are not smooth, and it is difficult to raise funds for the comprehensive utilization of tailings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for purifying the surface layer of a tailings pond and restoring the ecology of S. argentina, the steps of which are as follows:

[0032] ①Small sample test for survey status: measure the scale of vegetation, sample and analyze the surface layer of the tailings pond, and divide the samples into areas with the same shape and thickness of 0.5m 2 18 aliquots of small samples are selected, and plants are selected for experimental planting on each aliquot of small samples, and the steps are as follows:

[0033] a. Measure the scale of vegetation, sample and analyze the surface of the tailings pond, and determine the acidity and alkalinity of the soil;

[0034] b. Shallow purification of tailings: each piece of 0.5m 2 18 pieces of tailings samples with a thickness of about 25 cm on the shallow surface are infiltrated with quicklime as a purification product at a weight ratio of 1000:10, so that it can undergo an acid-base neutralization reaction with the toxic compo...

Embodiment 2

[0046] A method for purifying the surface layer of a tailings pond and restoring the ecology of S. argentina, the steps of which are as follows;

[0047] ①Small sample test for survey status: measure the scale of vegetation, sample and analyze the surface layer of the tailings pond, and divide the samples into areas with the same shape and thickness of 0.5m 2 18 aliquots of small samples are selected, and plants are selected for experimental planting on each aliquot of small samples, and the steps are as follows:

[0048] a. Measure the scale of vegetation, sample and analyze the surface of the tailings pond, and determine the acidity and alkalinity of the soil;

[0049] b. Superficial purification of tailings: each piece of 0.5m 2 18 pieces of tailings samples with a thickness of about 25 cm on the shallow surface are infiltrated into quicklime as a purification product at a weight ratio of 1000:5, so that it can undergo acid-base neutralization reaction with the toxic compo...

Embodiment 3

[0061] A method for purifying the surface layer of a tailings pond and restoring the ecology of S. argentina, the steps of which are as follows:

[0062] ①Small sample test for survey status: measure the scale of vegetation, sample and analyze the surface layer of the tailings pond, and divide the samples into areas with the same shape and thickness of 0.5m 2 18 aliquots of small samples are selected, and plants are selected for experimental planting on each aliquot of small samples, and the steps are as follows:

[0063] a. Measure the scale of vegetation, sample and analyze the surface of the tailings pond, and determine the acidity and alkalinity of the soil;

[0064] b. Superficial purification of tailings: each piece of 0.5m 2 18 pieces of tailings samples with a thickness of about 25 cm on the shallow surface are infiltrated into quicklime as a purification product at a weight ratio of 1000:1, so that it can undergo acid-base neutralization reaction with the toxic compo...

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PUM

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Abstract

The invention relates to a method for purifying the surface of a tailings reservoir and ecologically restoring linear stonecrop herb. The method comprises the following steps of: a, purifying the superficial layer of tailings; b, covering clay; and c, afforesting vegetation. The method has the advantages of pollution abatement and ecological restoration; compared with a filling method and a solidifying method, the method saves abatement cost when used in the tailings reservoir; compared with a reclaimation method, the method saves a great number of soil resources on the basis of saving cost; compared with the common tailings reservoir, the method solves the problems of environmental pollution caused by dust because tailings are exposed in the common tailings reservoir; and the method has the advantages of convenient technology implementation, low cost, contribution to ecological balance and sustainable development of the society, and capability of achieving good economic benefit and environmental benefit.

Description

technical field [0001] The invention relates to the technical field of tailings treatment, in particular to a method for purifying the surface layer of a tailings pond and restoring the ecology of S. edulis. Background technique [0002] Mineral resources are very important to the development of the national economy. More than 95% of energy and 85% of industrial raw materials in China come from mineral resources, but mineral resources are non-renewable natural resources. In order to improve the utilization rate of mineral resources and protect the ecological environment on which human beings depend, people pay more and more attention to the comprehensive utilization and treatment of tailings. At present, there are mainly the following methods for tailings treatment: [0003] Reclamation method: bury the tailings deep underground, plant trees, grass or build houses on the covering soil. This method not only requires a large investment, but also wastes a lot of soil resource...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 欧阳春平祝辛卯
Owner WUHAN LITI GREENING ENG
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