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Ecological restoration base material for restoring mining wasteland and preparation method of ecological restoration base material

A technology of ecological restoration and abandoned land, applied in the direction of soil preparation, application, urea compound fertilizer, etc., can solve the problems of destroying the ecological environment, unable to grow plants, and destroying the surface landscape

Inactive Publication Date: 2021-04-09
云南省生态环境科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Abandoned mines destroy the ecological environment, resulting in the inability of plants to grow and the destruction of the surface landscape

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: The ecological restoration base material is prepared from the following components by mass: 30 parts of smelting slag, 40 parts of mine waste land soil, 20 parts of dried and fermented municipal sludge, 20 parts of straw and residual branches 40 parts of sawdust, 20 parts of water retaining agent polyacrylate, 15 parts of grass seed, 10 parts of urea, 10 parts of phosphate, 5 parts of a mixture of lime and calcium bicarbonate.

[0023] The preparation method of the ecological restoration base material used for repairing the abandoned mine land, the specific operation is as follows:

[0024] (1) Break 30 parts of smelting slag or slag or the mixture of smelting slag and slag until the particle size is less than 0.074mm, accounting for 80% to obtain material I, and then crush 20 parts of straw until the particle size is less than 0.074mm, accounting for 90% , and then mix the material I with 40 parts of the soil of the abandoned mine land, and use the crushed s...

Embodiment 2

[0029] Example 2: This ecological restoration base material is prepared from the following components by mass: 40 parts of slag, 45 parts of mine waste land soil, 30 parts of dried and fermented municipal sludge, 25 parts of straw, and sawdust 50 parts, water retaining agent polyacrylate 25 parts, grass seed 20 parts, urea 12 parts, phosphate 15 parts, iron sulfate 5 parts.

[0030] The preparation method of the ecological restoration base material used for repairing the abandoned mine land, the specific operation is as follows:

[0031] (1) Crush 40 parts of slag until the particle size is less than 0.074mm, accounting for 90%, to obtain material I, then crush 25 parts of straw until the particle size is less than 0.074mm, accounting for 92%, and then discard material I and 45 parts of the mine The ground soil is mixed, and the crushed straw is used as a pore-forming agent, and it is calcined in a vacuum at a calcining temperature of 1000°C to obtain a porous mixed substrate;...

Embodiment 3

[0036] Example 3: This ecological restoration base material is obtained from the following components by mass: 50 parts of a mixture of smelting slag and slag, 50 parts of mine waste land soil, 35 parts of dried and fermented municipal sludge, 30 parts of Straw, 60 parts of residual wood chips, 35 parts of polyacrylate water retaining agent, 25 parts of grass seeds, 15 parts of urea, 20 parts of phosphate, 15 parts of iron sulfate.

[0037] The preparation method of the ecological restoration base material used for repairing the abandoned mine land, the specific operation is as follows:

[0038] (1) Break 50 parts of the mixture of smelting slag and slag until the particle size is less than 0.074mm, accounting for 95%, to obtain material I, and then crush 30 parts of straw until the particle size is less than 0.074mm, accounting for 95%, and then mix material I with 50 parts of the soil of the mine wasteland were mixed, and the crushed straw was used as a pore-forming agent, a...

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PUM

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Abstract

The invention discloses an ecological restoration base material for restoring mining wasteland and a preparation method of the ecological restoration base material The ecological restoration base material is prepared from the following components in parts by mass: 30-50 parts of smelting slag and / or mineral slag, 40-50 parts of mining wasteland soil, 20-35 parts of dried and fermented municipal sludge, 20-30 parts of straw, 40-60 parts of residual branch sawdust, 20-35 parts of a water-retaining agent, 15-25 parts of grass seeds, 10-15 parts of urea, 10-20 parts of phosphate, 5-15 parts of a mixture of lime and bicarbonate and 5-15 parts of ferric sulfate. The ecological restoration base material disclosed by the invention is good in water retention property, good in soil stability, rich in organic elements for plant growth, beneficial to plant growth, capable of restoring vegetation of a waste land; and the ecological restoration base material can adsorb heavy metal elements, waste land is improved, and the effect is good.

Description

technical field [0001] The invention relates to an ecological restoration substrate for repairing abandoned mine lands and a preparation method thereof, belonging to the technical field of mine restoration. Background technique [0002] Abandoned mine land refers to the unusable land destroyed in the process of mining or quarrying without certain treatment. Mine abandoned land has a great destructive effect on the ecological environment, endangers the survival and health of human beings, and affects the development of ecological economy in the region. Abandoned mines destroy the ecological environment, resulting in the inability of plants to grow and the destruction of the surface landscape. Mine wastelands are often polluted by heavy metals and mine acid drainage, and some wastelands have poor matrix structure, and quick-acting chemical fertilizers are particularly easy to be leached and dissolved. The acidity and alkalinity of the wasteland is unstable, some wastelands h...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/80A01B79/02
CPCA01B79/02C05C9/00C05G3/00C05G3/80C05D3/00C05D3/02C05D9/00C05F7/00C05F11/00C05F11/08
Inventor 吴学灿吴文卫杨子轩
Owner 云南省生态环境科学研究院
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