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Mine ecological restoration method applying mycorrhiza technology

A technology that uses mycorrhizae and ecological restoration, applied in the field of mine restoration, can solve the problems of slow overall soil restoration and ecological restoration in mines, and achieve the effects of avoiding groundwater pollution, reducing mobility and bioavailability, and enhancing survival and growth

Active Publication Date: 2021-05-14
宁波城市阳光环境建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Mycorrhizae can significantly reduce the thickness of the covering soil on the tailings sand, reduce costs, and enhance the colonization, survival and growth of different plants on the tailings sand, but the overall soil quality and ecological restoration of the mine is still slow

Method used

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  • Mine ecological restoration method applying mycorrhiza technology
  • Mine ecological restoration method applying mycorrhiza technology
  • Mine ecological restoration method applying mycorrhiza technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A mine ecological restoration method using mycorrhizal technology, comprising the following steps:

[0051] S1: Flatten the surface of the mine body, drill ecological holes downward at intervals, and the depth of the ecological holes is 4m;

[0052] S2: Lay the improved matrix in the ecological hole and on the surface of the mine to form a matrix layer. The thickness of the matrix layer is 5cm. The improved matrix includes the following components: 128kg of edible fungus chaff, 20kg of humus, 585kg of soil, 12kg of feather adsorbent, and Mud 25kg, mycorrhizal preparation 1.5kg, humus is peat;

[0053] Wherein, the feather adsorbent includes an alkali-treated adsorbent and a combined adsorbent with a weight ratio of 1:0.2, which are obtained by the following steps,

[0054] A1: Feathers are freeze-dried and pulverized with liquid nitrogen to a particle size of 0.1-0.6 mm;

[0055] A2: Soak the pulverized feathers in 0.1mol / L sodium hydroxide aqueous solution for 1.5h, ...

Embodiment 2

[0063] The difference with embodiment 1 is:

[0064] A mine ecological restoration method using mycorrhizal technology, comprising the following steps:

[0065] S1: Flatten the surface of the mine body, drill ecological holes downward at intervals, and the depth of the ecological holes is 4-10m;

[0066] S2: Lay the improved matrix in the ecological hole and on the surface of the mine to form a matrix layer. The thickness of the matrix layer is 5-15cm. The improved matrix includes the following components: edible fungus chaff 12-18kg, humus 15-20kg, soil 585- 630kg, feather adsorbent 8-12kg, sludge 25-32kg, mycorrhizal preparation 0.7-1.5kg, humus is peat and lignite with a mass ratio of 1:1;

[0067] Wherein, the feather sorbent includes an alkali-treated sorbent and a combined sorbent with a weight ratio of 1: (0.2-0.4), which is obtained by the following steps,

[0068] A1: Feathers are freeze-dried and pulverized with liquid nitrogen to a particle size of 0.1-0.6 mm;

...

Embodiment 3

[0072] The difference with embodiment 1 is:

[0073] A mine ecological restoration method using mycorrhizal technology, comprising the following steps:

[0074] S1: Level the surface of the mine body, drill ecological holes downward at intervals, and the depth of the ecological holes is 10m;

[0075] S2: Lay the improved substrate in the ecological hole and on the surface of the mine to form a substrate layer. Mud 32kg, mycorrhizal preparation 0.7kg, humus is peat, lignite, weathered coal with a mass ratio of 1:1:1;

[0076] Wherein, the feather sorbent includes an alkali-treated sorbent and a combined sorbent with a weight ratio of 1: (0.2-0.4), which is obtained by the following steps,

[0077] A1: Feathers are freeze-dried and pulverized with liquid nitrogen to a particle size of 0.1-0.6mm;

[0078] A2: Soak the crushed feathers in 0.1-0.5mol / L sodium hydroxide aqueous solution for 1.5-3h, filter, wash and dry to obtain the alkali-treated adsorbent;

[0079] A2: Add the...

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Abstract

The invention relates to a mine ecological restoration method applying mycorrhiza technology, wherein the method comprises the following steps: S1, leveling the surface of a mine body, and punching ecological holes downwards at intervals; S2, laying an improved substrate in the ecological holes and on the surface of the mine, and forming a substrate layer, wherein the improved substrate contains a mycorrhiza preparation; and S3, sowing gramineous and / or herbaceous and / or shrub plant seeds on the surface layer of the improved substrate, planting deep-rooted woody plants at the ecological holes, laying a protective layer, and arranging an anchoring assembly between the protective layer and the mine surface. The method has the effect of improving the soil restoration speed and the ecological restoration speed of the whole mine.

Description

technical field [0001] The present application relates to the field of mine restoration, in particular to a mine ecological restoration method using mycorrhizal technology. Background technique [0002] In my country, there are many lean metal mines, few rich mines, many polymetallic mines, few single minerals, extremely low metal grades, and high mineral stripping ratios, resulting in a large amount of solid waste. The surface layer of the mine is mostly gravel and slag, with loose structure and poor stability. It is difficult to store soil and water, plants are difficult to grow, and the ecological environment is difficult to recover naturally. Due to weathering and rainfall leaching, the toxic substances in the waste dump are extremely high. It is easy to enter rivers and groundwater with precipitation, causing large-scale environmental pollution and ecological deterioration. [0003] Vegetation restoration can effectively prevent precipitation leaching and natural weath...

Claims

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Application Information

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IPC IPC(8): B09C1/10B09C1/00A01B79/02
CPCB09C1/105B09C1/10A01B79/02B09C2101/00Y02A20/402
Inventor 张继军蒋斌钟国勇
Owner 宁波城市阳光环境建设工程有限公司
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