CN112718850A - Method for ecological restoration of abandoned mine - Google Patents
Method for ecological restoration of abandoned mine Download PDFInfo
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- CN112718850A CN112718850A CN202011479818.8A CN202011479818A CN112718850A CN 112718850 A CN112718850 A CN 112718850A CN 202011479818 A CN202011479818 A CN 202011479818A CN 112718850 A CN112718850 A CN 112718850A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Environmental & Geological Engineering (AREA)
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- General Health & Medical Sciences (AREA)
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- Molecular Biology (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a method for recovering ecology of a waste mine, and belongs to the technical field of ecological restoration. The invention realizes the ecological restoration of the abandoned mine by three steps of cleaning and fertilizing, stabilizing treatment of heavy metal complexing agent and spray-seeding maintenance. According to the invention, vegetation is combined with animal dung during slope treatment, and the animal dung is produced and used immediately, so that the animal dung can be well received by soil, the greening effect is improved, the water and soil loss is reduced, and the ecological restoration of the soil is effectively improved. The ecological restoration method can quickly restore vegetation and create huge environmental benefits and social benefits, and the method is simple in construction process, easy to implement, 4-5 times higher in efficiency than the traditional method, 25-35% lower in comprehensive treatment cost, suitable for ecological restoration popularization and application of large-area waste land and beneficial to stabilization of ecological systems in ecological fragile areas.
Description
Technical Field
The invention belongs to the technical field of ecological restoration, and particularly relates to a method for restoring the ecology of a waste mine.
Background
The mining waste land mainly treats heavy metal pollution and mine acid drainage pollution, and the treatment content mainly treats ecological restoration and pollution treatment. The main work of slope management is to stabilize the slope. The task of the process is to clear away dangerous stones, descend slopes and cut slopes, form horizontal steps on cliffs without formed steps as much as possible, and reduce the slope of the slopes to be below a safety angle so as to eliminate collapse hidden danger. The treated slope is then re-greened to further stabilize it. The key to ecological damage caused by mining of soil base layer improvement mine is land degradation, namely the change of soil factors, namely the deterioration of physicochemical properties of soil of waste land, the loss of nutrients and the increase of toxic and harmful substances in soil. Therefore, soil improvement is one of the most important links for ecological restoration of mine wastelands.
The existing literature search shows that Chinese patent publication No. CN110877047A, published as 2020, 3/13, discloses a method for ecologically restoring the soil of abandoned mines, which comprises the following steps: 1) digging a plurality of deep pits on the soil of the mining area for later use; 2) sequentially adding a physical adsorbent, bioactive bacteria and a chemical adsorbent into the pit, and backfilling soil after the completion; 3) and covering an alkaline soil regulator on the surface of the pit after backfilling the soil, balancing for 6-12 months, and finishing the ecological restoration of the soil of the abandoned mine. Although the method can repair the abandoned mine to a certain extent, the repair effect is poor, and secondary pollution is easily caused.
Disclosure of Invention
The invention aims to provide a method for well repairing a steel pipe without causing secondary pollution
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for recovering the ecology of a waste mine comprises the following steps:
1) cleaning and fertilizing: cleaning broken stones, adopting an excavator to carry out slope cutting treatment, cutting the broken stones into slopes with the slope of 10-15 degrees, planting green plants on the slopes, piling up a trapezoidal platform at the tail ends of the green plants, building a cultivation shed above the platform, applying fertilizer to excrement of animals in the cultivation shed, and pouring sufficient water after applying the fertilizer;
2) stabilizing treatment of the heavy metal complexing agent: applying a heavy metal complexing agent consisting of carbide slag, lignin and a sodium dithiocarbamate derivative solution on the waste surface, uniformly and flatly paving the heavy metal complexing agent on the waste surface, digging a pit at the edge of the waste surface, filling water in the pit, and putting nitrogen-oxygen mixed gas into the water;
3) spray seeding and maintenance: after the treatment is finished, spraying soil dressing base materials, carrying out segmented spraying, wherein the height of each segment is 80-100 cm, then carrying out detoxification treatment on the upper planting soil by using a biological disinfectant and biochar, carrying out detoxification treatment on the lower original soil by using a biological disinfectant and bacterial powder, and finally carrying out maintenance treatment on the plants.
Further, a drainage ditch and a fecal treatment tank are arranged below the platform in the step 1).
Further, the animal's manure in step 1) is applied around green plants after treatment in a manure treatment basin.
Further, the heavy metal complexing agent is prepared from the following raw materials in parts by weight: 30-36 parts of carbide slag, 40-50 parts of lignin and 30-40 parts of sodium dithiocarbamate derivative solution.
Further, the alien soil base material is composed of the following raw materials in parts by weight: 20-24 parts of humus, 10-16 parts of a long-acting fertilizer, 6-10 parts of oyster mushroom bran powder and 50-60 parts of pig manure.
Further, the mass ratio of the biological disinfectant to the biological carbon is as follows: 10-14: 6-8.
Further, the mass ratio of the biological disinfectant to the bacterial powder is as follows: 10-14: 3-5.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, vegetation is combined with animal dung during slope treatment, and the animal dung is produced and used immediately, so that the animal dung can be well received by soil, the greening effect is improved, the water and soil loss is reduced, and the ecological restoration of the soil is effectively improved.
2) According to the invention, the heavy metal complexing agent is used for repairing the damaged soil, the pollution performance of the soil can be reduced by using the carbide slag for repairing, the water content of the soil can be increased, the absorption of plants or crops to the heavy metal in the soil can be effectively relieved, and the nitrogen-oxygen mixed gas is placed in the pits at the corners of the waste surface, so that the distribution of the heavy metal in the soil can be effectively reduced.
3) The ecological restoration method can quickly restore vegetation and create huge environmental benefits and social benefits, and the method is simple in construction process, easy to implement, 4-5 times higher in efficiency than the traditional method, 25-35% lower in comprehensive treatment cost, suitable for ecological restoration popularization and application of large-area waste land and beneficial to stabilization of ecological systems in ecological fragile areas.
Detailed Description
The following examples further describe in detail specific embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
a method for recovering the ecology of a waste mine comprises the following steps:
1) cleaning and fertilizing: cleaning broken stones, adopting an excavator to carry out slope cutting treatment, cutting the broken stones into slopes with the slope of 10 degrees, planting green plants on the slopes, piling up trapezoidal platforms at the tail ends of the green plants, building a cultivation shed above the platforms, applying fertilizer to excrement of animals in the cultivation shed, and pouring sufficient water after applying the fertilizer; a drainage ditch and an excrement treatment pool are arranged below the platform, and excrement of animals is applied around green plants after being treated in the excrement treatment pool.
2) Stabilizing treatment of the heavy metal complexing agent: applying a heavy metal complexing agent consisting of carbide slag, lignin and a sodium dithiocarbamate derivative solution on the waste surface, uniformly and flatly paving the heavy metal complexing agent on the waste surface, digging a pit at the edge of the waste surface, filling water in the pit, and putting nitrogen-oxygen mixed gas into the water; the heavy metal complexing agent is prepared from the following raw materials in parts by weight: 30 parts of carbide slag, 40 parts of lignin and 30 parts of sodium dithiocarbamate derivative solution.
3) Spray seeding and maintenance: after the treatment is finished, spraying soil dressing base materials, carrying out segmented spraying, wherein the height of each segment is 80cm, then carrying out detoxification treatment on the upper planting soil by using a biological disinfectant and biochar, carrying out detoxification treatment on the lower raw soil by using a biological disinfectant and bacterial powder, and finally carrying out maintenance treatment on the plants. The soil dressing base material is composed of the following raw materials in parts by weight: 20 parts of humus, 10 parts of a long-acting fertilizer, 6 parts of oyster mushroom bran powder and 50 parts of pig manure. The mass ratio of the biological disinfectant to the biological carbon is as follows: 10:6. The mass ratio of the biological disinfectant to the bacterial powder is as follows: 10:3.
Example 2:
a method for recovering the ecology of a waste mine comprises the following steps:
1) cleaning and fertilizing: cleaning broken stones, adopting an excavator to carry out slope cutting treatment, cutting the broken stones into slopes with the slopes of 12 degrees, planting green plants on the slopes, piling up trapezoidal platforms at the tail ends of the green plants, building a cultivation shed above the platforms, applying fertilizer to excrement of animals in the cultivation shed, and pouring sufficient water after applying the fertilizer; a drainage ditch and an excrement treatment pool are arranged below the platform, and excrement of animals is applied around green plants after being treated in the excrement treatment pool.
2) Stabilizing treatment of the heavy metal complexing agent: applying a heavy metal complexing agent consisting of carbide slag, lignin and a sodium dithiocarbamate derivative solution on the waste surface, uniformly and flatly paving the heavy metal complexing agent on the waste surface, digging a pit at the edge of the waste surface, filling water in the pit, and putting nitrogen-oxygen mixed gas into the water; the heavy metal complexing agent is prepared from the following raw materials in parts by weight: 33 parts of carbide slag, 45 parts of lignin and 35 parts of sodium dithiocarbamate derivative solution.
3) Spray seeding and maintenance: after the treatment is finished, spraying soil dressing base materials, carrying out segmented spraying, wherein the height of each segment is 90cm, then carrying out detoxification treatment on the upper planting soil by using a biological disinfectant and biochar, carrying out detoxification treatment on the lower raw soil by using a biological disinfectant and bacterial powder, and finally carrying out maintenance treatment on the plants. The soil dressing base material is composed of the following raw materials in parts by weight: 22 parts of humus, 13 parts of a long-acting fertilizer, 8 parts of oyster mushroom fungus chaff powder and 55 parts of pig manure. The mass ratio of the biological disinfectant to the biological carbon is as follows: 12:7. The mass ratio of the biological disinfectant to the bacterial powder is as follows: 12:4.
Example 3:
a method for recovering the ecology of a waste mine comprises the following steps:
1) cleaning and fertilizing: cleaning broken stones, adopting an excavator to carry out slope cutting treatment, cutting the broken stones into slopes with the slope of 15 degrees, planting green plants on the slopes, piling up trapezoidal platforms at the tail ends of the green plants, building a cultivation shed above the platforms, applying fertilizer to excrement of animals in the cultivation shed, and pouring sufficient water after applying the fertilizer; a drainage ditch and an excrement treatment pool are arranged below the platform, and excrement of animals is applied around green plants after being treated in the excrement treatment pool.
2) Stabilizing treatment of the heavy metal complexing agent: applying a heavy metal complexing agent consisting of carbide slag, lignin and a sodium dithiocarbamate derivative solution on the waste surface, uniformly and flatly paving the heavy metal complexing agent on the waste surface, digging a pit at the edge of the waste surface, filling water in the pit, and putting nitrogen-oxygen mixed gas into the water; the heavy metal complexing agent is prepared from the following raw materials in parts by weight: 36 parts of carbide slag, 50 parts of lignin and 40 parts of sodium dithiocarbamate derivative solution.
3) Spray seeding and maintenance: after the treatment is finished, spraying soil dressing base materials, carrying out segmented spraying, wherein the height of each segment is 100cm, then carrying out detoxification treatment on the upper planting soil by using a biological disinfectant and biochar, carrying out detoxification treatment on the lower raw soil by using a biological disinfectant and bacterial powder, and finally carrying out maintenance treatment on the plants. The soil dressing base material is composed of the following raw materials in parts by weight: 24 parts of humus, 16 parts of a long-acting fertilizer, 10 parts of oyster mushroom bran powder and 60 parts of pig manure. The mass ratio of the biological disinfectant to the biological carbon is as follows: 14:8. The mass ratio of the biological disinfectant to the bacterial powder is as follows: 14:5.
In conclusion, the ecological restoration method for the abandoned mine provided by the embodiment of the invention can quickly restore vegetation and create huge environmental benefits and social benefits, and the method has the advantages of simple construction process, easy implementation, 4-5 times of efficiency improvement compared with the traditional method, 25-35% of comprehensive treatment cost reduction, suitability for large-area ecological restoration popularization and application of abandoned lands, and particularly contribution to the stability of ecological systems in ecological fragile areas.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A method for recovering the ecology of a waste mine is characterized by comprising the following steps:
1) cleaning and fertilizing: cleaning broken stones, adopting an excavator to carry out slope cutting treatment, cutting the broken stones into slopes with the slope of 10-15 degrees, planting green plants on the slopes, piling up a trapezoidal platform at the tail ends of the green plants, building a cultivation shed above the platform, applying fertilizer to excrement of animals in the cultivation shed, and pouring sufficient water after applying the fertilizer;
2) stabilizing treatment of the heavy metal complexing agent: applying a heavy metal complexing agent consisting of carbide slag, lignin and a sodium dithiocarbamate derivative solution on the waste surface, uniformly and flatly paving the heavy metal complexing agent on the waste surface, digging a pit at the edge of the waste surface, filling water in the pit, and putting nitrogen-oxygen mixed gas into the water;
3) spray seeding and maintenance: after the treatment is finished, spraying soil dressing base materials, carrying out segmented spraying, wherein the height of each segment is 80-100 cm, then carrying out detoxification treatment on the upper planting soil by using a biological disinfectant and biochar, carrying out detoxification treatment on the lower original soil by using a biological disinfectant and bacterial powder, and finally carrying out maintenance treatment on the plants.
2. The method for ecologically restoring the abandoned mine according to claim 1, wherein a drainage ditch and a fecal treatment pond are arranged below the platform in the step 1).
3. The method for ecologically restoring abandoned mines according to claim 2, wherein the animal manure in step 1) is applied around green plants after being treated in a manure treatment pond.
4. The method for ecologically restoring the abandoned mine according to claim 1, wherein the heavy metal complexing agent is composed of the following raw materials in parts by weight: 30-36 parts of carbide slag, 40-50 parts of lignin and 30-40 parts of sodium dithiocarbamate derivative solution.
5. The method for ecologically restoring the abandoned mine according to claim 1, wherein the alien soil base material is composed of the following raw materials in parts by weight: 20-24 parts of humus, 10-16 parts of a long-acting fertilizer, 6-10 parts of oyster mushroom bran powder and 50-60 parts of pig manure.
6. The method for ecologically restoring the abandoned mine according to claim 1, wherein the mass ratio of the biological disinfectant to the biological carbon is as follows: 10-14: 6-8.
7. The method for ecologically restoring the abandoned mine according to claim 1, wherein the mass ratio of the biological disinfectant to the bacterial powder is as follows: 10-14: 3-5.
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| CN202011479818.8A CN112718850A (en) | 2020-12-16 | 2020-12-16 | Method for ecological restoration of abandoned mine |
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| CN202011479818.8A CN112718850A (en) | 2020-12-16 | 2020-12-16 | Method for ecological restoration of abandoned mine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972197A (en) * | 2012-12-19 | 2013-03-20 | 北京北林绿源生态技术研究院有限责任公司 | Vegetation recovery method for nonferrous metal mining wasteland |
| CN103299740A (en) * | 2013-05-14 | 2013-09-18 | 深圳市如茵生态环境建设有限公司 | Treatment method for recovering mine wasteland vegetation |
| CN104549152A (en) * | 2015-01-12 | 2015-04-29 | 云南银发绿色环保产业股份有限公司 | Preparation method of soil heavy-metal stabilizer |
| CN107363083A (en) * | 2017-07-18 | 2017-11-21 | 北京科技大学 | A kind of five layers cover strong reducing in-situ into ore deposit restorative procedure |
| CN110121971A (en) * | 2019-04-24 | 2019-08-16 | 广西博世科环保科技股份有限公司 | A kind of method of metal mine acidity discarded ground ecological recovery |
| CN111185469A (en) * | 2020-01-15 | 2020-05-22 | 厦门海石生态环境股份有限公司 | Abandoned mine restoration method based on biological habitat restoration |
-
2020
- 2020-12-16 CN CN202011479818.8A patent/CN112718850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972197A (en) * | 2012-12-19 | 2013-03-20 | 北京北林绿源生态技术研究院有限责任公司 | Vegetation recovery method for nonferrous metal mining wasteland |
| CN103299740A (en) * | 2013-05-14 | 2013-09-18 | 深圳市如茵生态环境建设有限公司 | Treatment method for recovering mine wasteland vegetation |
| CN104549152A (en) * | 2015-01-12 | 2015-04-29 | 云南银发绿色环保产业股份有限公司 | Preparation method of soil heavy-metal stabilizer |
| CN107363083A (en) * | 2017-07-18 | 2017-11-21 | 北京科技大学 | A kind of five layers cover strong reducing in-situ into ore deposit restorative procedure |
| CN110121971A (en) * | 2019-04-24 | 2019-08-16 | 广西博世科环保科技股份有限公司 | A kind of method of metal mine acidity discarded ground ecological recovery |
| CN111185469A (en) * | 2020-01-15 | 2020-05-22 | 厦门海石生态环境股份有限公司 | Abandoned mine restoration method based on biological habitat restoration |
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