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Nutrient soil for mine restoration and vegetation recovery and method of applying same

A technology of vegetation restoration and application methods, applied in the field of environmental governance, can solve problems such as troublesome environments and difficult restoration, and achieve the effects of not easy to detach, improve the effect, and have good adhesion

Inactive Publication Date: 2019-11-08
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the mine is located in a marginal ecologically fragile area, once the surface vegetation is destroyed, it is very difficult to recover, and due to the problem of dust suppression on the surface of the slag, it has brought very troublesome environmental problems while developing production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 100 units of sludge from urban domestic sewage plants, control the moisture content of the sludge to about 80%, then add about 10% of the sludge mass crushed wheat straw, add 15% of the sludge mass soil, and add the sludge mass 20% water, plus 500ppm of sludge quality chemical additives for inhibiting the growth of harmful bacteria in the mud, fully stirred and dispersed, processed into mud with good fluidity, that is, nutritious soil.

[0021] Spray the mud evenly on the surface of the slag with a thickness of about 20-50cm, and then sprinkle the fast-growing grass seeds on the surface. Spray a water-retaining agent with a mass percent concentration of 0.3% on the surface. In about 15 days, the vegetation on the slag surface will recover rapidly.

Embodiment 2

[0023] Take 100 units of sludge from urban domestic sewage plants, then add about 5% corn stalk crushed material, soil with 10% sludge mass, and 20% water, fully stir and disperse, and add 500ppm sludge mass The chemical auxiliary bone glue is processed into mud with good fluidity to obtain nutrient soil.

[0024] Spray the mud evenly on the surface of the slag with a thickness of about 20-50cm, and then sprinkle the fast-growing grass seeds on the surface. Spray a water-retaining agent with a mass percent concentration of 0.2% on the surface. In about 18 days, the vegetation on the slag surface will recover rapidly.

Embodiment 3

[0026] Take 100 units of sludge from urban domestic sewage plants, then add about 6% of crushed vegetable waste, add 8% of the sludge mass from coal combustion slag, and add 20% of water, fully stir and disperse, add sewage The chemical additive ethylene glycol with mud quality of 500ppm is processed into mud with good fluidity to obtain nutrient soil.

[0027] Spray the mud evenly on the surface of the slag with a thickness of about 20-50cm, and then sprinkle the fast-growing grass seeds on the surface. Spray a water-retaining agent with a mass percent concentration of 0.3% on the surface. The water retaining agent is biological polysaccharide and surfactant sodium lauryl sulfate with 0.05% of biological polysaccharide mass, and one or more substances of ammonium bicarbonate, ammonium nitrate and phosphate fertilizer with 150-600ppm of biological polysaccharide mass are added.

[0028] The water-retaining agent is prepared as a solution with a concentration of 0.3% and spray...

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PUM

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Abstract

The invention discloses nutrient soil for mine restoration and vegetation recovery and a method of applying the same. The nutrient soil is made mainly from sludge from treatment of urban wastewater and ural crop waste; mud from the nutrient soil by mixing is sprayed to the surface of mineral rocks, the mud has good adhesion, can effusively cover the dust of mines with rarity of separation occurred, and is applicable to the recovery of vegetation on the exposed surface of mines, the vegetation recovery and dust suppression for the surface of slag; refractory sludge from the treatment of urban wastewater and rural crop waste are consumed, the urban environmental issues and rural environmental issues are alleviated effectively, mine restoration cost is reduced, and vegetation recovery effectis improved; vegetation recovery is fast, dust from the surface of slag is lessened, the cost is low, the economic effect is evident, and the nutrient soil is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the field of environmental governance, and relates to a nutrient soil used for mine restoration and vegetation restoration and an application method thereof. Background technique [0002] The restoration of vegetation on the mine surface and the suppression of slag dust are urgent problems to be solved in the mining area. Because the mine is located in a marginal ecologically fragile area, once the surface vegetation is destroyed, it is very difficult to recover, and due to the problem of dust suppression on the surface of the slag, it has brought very troublesome environmental problems while developing production. [0003] The restoration of vegetation on the surface of the mine and the suppression of dust from slag involve the issue of governance costs. Due to the constraints of logistics costs and construction costs, there are not many options available. [0004] How to solve the problem of vegetation restoration and dust ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/20A01G24/17A01G24/10A01G24/30A01G24/22A01G24/35A01G20/00
CPCA01G20/00A01G24/10A01G24/17A01G24/20A01G24/22A01G24/30A01G24/35
Inventor 刘保健霍登蓉曾佳佳王成马莉刘育佳
Owner SHAANXI UNIV OF SCI & TECH
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