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Tailing pond reclamation greening method

A tailings pool and tailings technology, applied in the field of greening, can solve the problems of secondary damage to the environment, long cycle, high cost, etc., and achieve the effects of low cost, easy acquisition, and convenient construction

Inactive Publication Date: 2014-10-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of engineering soil fixation and slope protection has a long period, high cost, and will cause secondary damage to the environment, which does not meet the requirements of sustainable development in today's society

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for reclamation and greening of tailings ponds. The waste tailings in the mining area are selected, and peat soil and wood chips are added to improve the tailings. The analysis of variance method is used to analyze the combination of each matrix ratio, so as to obtain the optimal matrix volume ratio V 尾砂 :V 泥炭土 :V 木屑 =3:1:1, the physical and chemical properties of this substrate are more suitable for plant growth, pH6.3, bulk density 1.03, porosity 59.96%, water holding capacity 32.7%. The selected plant tall fescue grows well, the emergence rate is 62%, the survival rate is 52%, the aboveground biomass is 19.71g, and the plant height is 25.54cm. Add 25g / m to the matrix 2 Water-retaining agent, using this substrate to carry out reclamation and greening in the abandoned mining area, not only has a good ecological restoration and greening effect, but also can effectively reduce the accumulation of tailings in the mining area and the harm to the ecological envi...

Embodiment 2

[0036] A method for reclamation and greening of tailings ponds. The waste tailings in the mining area are selected, and peat soil and wood chips are added to improve the tailings. The analysis of variance method is used to analyze the combination of each matrix ratio, so as to obtain the optimal matrix volume ratio V 尾砂 :V 泥炭土 :V 木屑 =2:0.8:0.8, the physical and chemical properties of the substrate are more suitable for plant growth, pH6.3, bulk density 1.03, porosity 59.96%, water holding capacity 32.7%. The selected plant tall fescue grows well, the emergence rate is 62%, the survival rate is 52%, the aboveground biomass is 19.71g, and the plant height is 25.54cm. Add 20g / m to the matrix 2 Water-retaining agent, using this substrate to carry out reclamation and greening in the abandoned mining area, not only has a good ecological restoration and greening effect, but also can effectively reduce the accumulation of tailings in the mining area and the harm to the ecological e...

Embodiment 3

[0046] A method for reclamation and greening of tailings ponds. The waste tailings in the mining area are selected, and peat soil and wood chips are added to improve the tailings. The analysis of variance method is used to analyze the combination of each matrix ratio, so as to obtain the optimal matrix volume ratio V 尾砂 :V 泥炭土 :V 木屑 =4:1.2:1.2, the physical and chemical properties of this matrix are more suitable for plant growth, pH6.3, bulk density 1.03, porosity 59.96%, water holding capacity 32.7%. The selected plant tall fescue grows well, the emergence rate is 62%, the survival rate is 52%, the aboveground biomass is 19.71g, and the plant height is 25.54cm. Add 30g / m to the matrix 2 Water-retaining agent, using this substrate to carry out reclamation and greening in the abandoned mining area, not only has a good ecological restoration and greening effect, but also can effectively reduce the accumulation of tailings in the mining area and the harm to the ecological env...

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Abstract

The invention discloses a tailing pond reclamation greening method. The tailing pond reclamation greening method includes: selecting mine waste tailings and adding modifying agents of peat soil and sawdust to modify the tailings, wherein the volume proportion of the base materials of the tailings, the peat soil and the sawdust is 2-4:0.8-1.2:0.8-1.2, 20g / m<2>-30g / m<2> of water retaining agents are added in the base materials, and reclamation greening operation is performed on mine waste land by using the base materials. Accordingly, not only are good ecological reclamation greening effects achieved, but also accumulation quantity of the tailings in a mine and harm from the tailings to mine ecological environment are effectively reduced, and furthermore soil is not used in the base materials, and therefore the disadvantage that secondary damage is caused to the environment due to the fact that replacement soil is used as growth base material of plants in a traditional replacement soil spraying greening method is avoided.

Description

technical field [0001] The invention relates to a greening method, in particular to a tailing pond reclamation greening method. Background technique [0002] Mining activities create large amounts of abandoned land and cause water pollution, soil erosion, and other environmental damage. One of the core issues of ecological restoration is the selection and ratio of substrates. Especially in mining areas with serious soil erosion and fragile ecological environment, substrates are the key to restrict ecological restoration. It is very difficult to carry out ecological restoration in mining areas with highly damaged ecosystems, and traditional restoration measures may destroy the originally fragile ecological niche. The natural restoration process of the ecosystem is relatively long and cannot meet people's needs for living environment and landscape, but artificial restoration can speed up the process of vegetation restoration. In the vegetation reconstruction process of ecolo...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01B77/00C05G3/04C05G3/80
Inventor 邓红卫贺威周科平
Owner CENT SOUTH UNIV
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