CN115088412A - Method for treating leaching water pollution and restoring ecological function of pyrite waste land - Google Patents
Method for treating leaching water pollution and restoring ecological function of pyrite waste land Download PDFInfo
- Publication number
- CN115088412A CN115088412A CN202210891004.8A CN202210891004A CN115088412A CN 115088412 A CN115088412 A CN 115088412A CN 202210891004 A CN202210891004 A CN 202210891004A CN 115088412 A CN115088412 A CN 115088412A
- Authority
- CN
- China
- Prior art keywords
- repaired
- pyrite
- water
- acid
- wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Abstract
The invention relates to a method for treating leaching water pollution and restoring ecological functions of pyrite waste land, belonging to the technical field of mine ecological environment treatment. A method for restoring ecological functions of a pyrite waste land is realized by the following steps: (1) excavating a field to be treated to obtain a backfill pit and an acid matrix to be repaired; (2) preparing a modifying agent, mixing the prepared modifying agent with an acid matrix to be repaired, and maintaining the modifying agent and the acid matrix for a preset time; (3) paving rubbles in the backfill pits to serve as an isolation flow guide layer; (4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil. The invention aims at the acidic waste water containing dust and heavy metal generated in the production process and the eluviated acid water generated in a waste ore storage yard to treat the pollution of the pollution source waste water; the method has important significance for improving the treatment level of the mining area wastewater, accelerating the recovery of the ecological function of the mining area and improving the ecological environment of the mining area.
Description
Technical Field
The invention relates to the technical field of mine ecological environment treatment, in particular to a method for treating leaching water pollution and restoring ecological functions of a pyrite waste land.
Background
Mineral resources are important material basis for human survival and development, and make great contribution to the development of human society and the progress of civilization. However, at the same time, the development and utilization of mineral resources also generate a large amount of abandoned mine lands. Mining and smelting has formed 40 million tons of tailings and is still increasing at a rate of 200 million tons per year. The abandoned mine land not only occupies a large amount of land resources, but also causes damage to the ecological environment, even threatens the life safety of human beings, and needs to be properly treated and restored urgently.
The mining waste land matrix has the characteristics of poor physical structure, low N, P, K nutrient element and organic matter content, poor water and fertilizer holding capacity, extreme impoverishment or unbalanced nutrient, overhigh heavy metal content and the like. A large amount of sulfide barren rocks are left in a pyrite mine abandoned land, and the heavy metal and sulfide content of the sulfide barren rocks are high. Under the condition of open-air stacking, a sulfuric Acid high-iron solution is easily formed through weathering and leaching, metal ions such as Cd, Cu, Fe, Pb, Zn and the like are further dissolved out when meeting rainfall, and mineral Acid wastewater (AMD: Acid Mine Drainage) rich in iron, sulfate radicals and heavy metals is formed. The acidic waste water carries a large amount of heavy metal ions to enter underground water or pollute soil and surface water around a mining area, so that the growth of crops is influenced, and a serious environmental problem is caused.
At present, the method adopted in the aspect of comprehensive treatment of the abandoned mine land is single, namely, the ecological greening function is realized through simple surface soil coverage and vegetation planting. However, the covering soil is difficult to neutralize the acidity in the matrix and prevent oxidation and re-acidification of pyrite, and the re-acidification degree of the soil is increased. Research results show that after a slag yard which is only covered with simple soil and does not undergo repair improvement and acid barrier treatment is repaired for half a year, the vegetation soil is influenced by the overflow and reverse osmosis of acid liquor containing various heavy metal ions at the lower layer, the pH value is obviously reduced, and the vegetation recovery condition is extremely poor. Therefore, the effect of only covering soil on reducing acidity and heavy metal harm is not obvious, waste of clean soil is caused, the cost is high, and the problem of ecological management of the mine wasteland is not fundamentally solved.
Disclosure of Invention
In view of the above, the invention provides a method for treating the leaching water pollution of pyrite waste land and restoring the ecological function.
In order to achieve the above object, the present invention provides the following technical solutions, which mainly include:
a method for treating leaching water pollution of a pyrite waste land is realized by the following steps:
(1) the leaching water of the waste rock storage yard is concentrated into an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated into a comprehensive regulating tank;
(2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralization filtering drum through an axial flow pump, and the red mud is separated conveniently by adding lime milk;
(3) the wastewater in the horizontal neutralizing and filtering roller is pumped to a pH adjusting tank through aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
(4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the obtained purified water is pumped into a clean water tank.
Preferably, the purified water is used for vegetation irrigation.
A method for restoring ecological functions of pyrite waste lands is realized by the following steps:
(1) excavating a field to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil.
Preferably, positive and negative electrodes are inserted on two sides of the repaired acidic matrix obtained in the step 2, and are electrified to remove heavy metal pollutants in an electrolytic manner.
Preferably, the isolation and flow guide layer comprises a first rough stone layer and a second rough stone layer which are sequentially arranged from top to bottom, and the particle size of rough stones in the first rough stone layer is smaller than that of rough stones in the second rough stone layer.
Preferably, the preparation method of the modifying agent comprises the steps of mixing and stirring 4-6 parts by mass of slaked lime and 2-3 parts by mass of red mud, adding 3-5 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifying agent.
According to the technical scheme, compared with the prior art, the leaching water treatment method disclosed by the invention has the advantages that the leaching water of the pyrite mine waste land is subjected to pollution treatment and the acid matrix of the waste land is improved and the ecological function is restored, and the ecological treatment and restoration are emphasized while the source wastewater treatment is enhanced. Red mud and purified water separated in the leaching water treatment process are used for preparing a modifier in ecological function restoration and irrigating vegetation; the isolation diversion layer is formed by paving rubbles, so that reverse osmosis of acid liquor at the lower layer is effectively reduced, and secondary acidification and pollution are avoided; the modifier improves the physicochemical property of the soil of the mine wasteland, so that the soil is more suitable for plant growth, and the phenomena of 'one-year green, two-year yellow and three-year dead light' are avoided; the outsourcing cultivation soil is used for covering soil on the surface layer and planting vegetation, which is beneficial to the vegetation recovery and water and soil conservation in the mining area. In addition, the invention has the advantages of convenient acquisition of materials, low cost, simple and convenient operation, no need of special equipment and quick response.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for treating leaching water pollution of pyrite waste land is realized by the following steps:
(1) the leaching water of the waste rock storage yard is concentrated into an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated into a comprehensive regulating tank;
(2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralizing and filtering drum through an axial flow pump, and the red mud is conveniently separated by adding lime milk;
(3) the wastewater in the horizontal neutralizing and filtering roller is pumped to a pH adjusting tank through aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
(4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the obtained purified water is pumped into a clean water tank.
Preferably, the purified water is used for vegetation irrigation.
A method for restoring ecological functions of a pyrite waste land is realized by the following steps:
(1) excavating a field to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil.
Preferably, positive and negative electrodes are inserted on two sides of the repaired acidic matrix obtained in the step 2, and are electrified to remove heavy metal pollutants in an electrolytic manner.
Preferably, the isolation and flow guide layer comprises a first rubble layer and a second rubble layer which are sequentially arranged from top to bottom, and the particle size of rubbles in the first rubble layer is smaller than that of rubbles in the second rubble layer.
Preferably, the preparation method of the modifying agent comprises the steps of mixing and stirring 4-6 parts by mass of hydrated lime and 2-3 parts by mass of red mud, adding 3-5 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifying agent.
Example 1
Treatment and restoration of waste dump site
A method for restoring ecological functions of pyrite waste lands is realized by the following steps:
(1) excavating a refuse dump to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) and backfilling the restored acid matrix into a backfilling pit paved with rubbles, and planting vegetation after covering the backfilling pit with surface soil.
Preferably, positive and negative electrodes are inserted on two sides of the repaired acidic matrix obtained in the step 2, and are electrified to remove heavy metal pollutants in an electrolytic manner.
Preferably, the isolation and flow guide layer comprises a first rough stone layer and a second rough stone layer which are sequentially arranged from top to bottom, and the particle size of rough stones in the first rough stone layer is smaller than that of rough stones in the second rough stone layer.
A method for treating leaching water pollution of pyrite waste land is realized by the following steps:
(1) the leaching water of the waste rock storage yard is concentrated to an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated to a comprehensive regulating tank;
(2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralizing and filtering drum through an axial flow pump, and the red mud is conveniently separated by adding lime milk;
(3) the wastewater in the horizontal neutralizing and filtering roller is pumped to a PH regulating tank through aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
(4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the obtained purified water is pumped to a clean water tank.
Preferably, the purified water is used for vegetation irrigation.
Preferably, the preparation method of the modifying agent comprises the steps of mixing and stirring 6 parts by mass of slaked lime and 3 parts by mass of red mud, adding 5 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifying agent.
Example 2
Treatment and restoration of site of rock dumping field
A method for restoring ecological functions of pyrite waste lands is realized by the following steps:
(1) excavating a field to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil.
Preferably, positive and negative electrodes are inserted on two sides of the repaired acidic matrix obtained in the step 2, and are electrified to remove heavy metal pollutants in an electrolytic manner.
Preferably, the isolation and flow guide layer comprises a first rough stone layer and a second rough stone layer which are sequentially arranged from top to bottom, and the particle diameter of rough stones in the first rough stone layer is smaller than that of rough stones in the second rough stone layer.
A method for treating leaching water pollution of pyrite waste land is realized by the following steps:
1) the leaching water of the waste rock storage yard is concentrated into an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated into a comprehensive regulating tank;
2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralizing and filtering drum through an axial flow pump, and the red mud is conveniently separated by adding lime milk;
3) the wastewater in the horizontal neutralizing and filtering roller is pumped to a PH regulating tank through aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the purified water is obtained and pumped to a clean water tank.
Preferably, the purified water is used for vegetation irrigation.
Preferably, the preparation method of the modifying agent comprises the steps of mixing and stirring 5 parts by mass of hydrated lime and 2 parts by mass of red mud, adding 4 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifying agent.
Example 3
Remediation of industrial sites
A method for restoring ecological functions of pyrite waste lands is realized by the following steps:
(1) excavating a field to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil.
Preferably, positive and negative electrodes are inserted on two sides of the repaired acidic matrix obtained in the step 2, and are electrified to remove heavy metal pollutants in an electrolytic manner.
Preferably, the isolation and flow guide layer comprises a first rough stone layer and a second rough stone layer which are sequentially arranged from top to bottom, and the particle size of rough stones in the first rough stone layer is smaller than that of rough stones in the second rough stone layer.
A method for treating leaching water pollution of pyrite waste land is realized by the following steps:
1) the leaching water of the waste rock storage yard is concentrated into an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated into a comprehensive regulating tank;
2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralizing and filtering drum through an axial flow pump, and the red mud is conveniently separated by adding lime milk;
3) the wastewater in the horizontal neutralizing and filtering roller is pumped to a pH adjusting tank through aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the obtained purified water is pumped to a clean water tank.
Preferably, the purified water is used for irrigating vegetation.
Preferably, the preparation method of the modifying agent comprises the steps of mixing and stirring 4 parts by mass of hydrated lime and 2 parts by mass of red mud, adding 3 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifying agent.
The invention carries out pollution treatment and the improvement of acid matrix and ecological function restoration of the waste land on the leaching water of the pyrite mine waste land, and pays attention to the ecological treatment restoration while enhancing the source wastewater treatment. Red mud and purified water separated in the leaching water treatment process are used for preparing a modifier in ecological function restoration and irrigating vegetation; the rubble is laid in the site restoration to form an isolation diversion layer, so that reverse osmosis of the acid liquor at the lower layer is effectively reduced, and secondary acidification and pollution are avoided; the modifier improves the physicochemical property of the soil of the mine wasteland, so that the soil is more suitable for plant growth, and the phenomena of 'one-year green, two-year yellow and three-year dead light' are avoided; the outsourcing cultivation soil is used for covering soil on the surface layer and planting vegetation, which is beneficial to the vegetation recovery and water and soil conservation in the mining area. In addition, the invention has the advantages of convenient acquisition of materials, low cost, simple and convenient operation, no need of special equipment and quick response.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for treating leaching water pollution of pyrite waste land is realized by the following steps:
(1) the leaching water of the waste rock storage yard is concentrated into an emergency accident regulating tank, and other acid wastewater of the mine in the production process is concentrated into a comprehensive regulating tank;
(2) wastewater in the comprehensive regulating tank is sent to a horizontal neutralizing and filtering drum through an axial flow pump, and the red mud is conveniently separated by adding lime milk;
(3) pumping the wastewater in the horizontal neutralizing and filtering roller to a pH adjusting tank after aeration, primary inclined tube precipitation, secondary coagulation reaction, secondary inclined tube precipitation, tertiary coagulation reaction and tertiary inclined tube precipitation;
(4) and the wastewater in the pH adjusting tank passes through a water collecting well, a water distribution well and a sand filter, and finally the obtained purified water is pumped to a clean water tank.
2. The method for restoring the ecological function of the pyrite waste land is characterized by comprising the following steps of:
(1) excavating a site to be treated to obtain a backfill pit and an acid matrix to be repaired;
(2) preparing a modifying agent, mixing the prepared modifying agent with the acid matrix to be repaired, and curing for a preset time to obtain the repaired acid matrix;
(3) paving rubbles in the backfill pits to serve as an isolation flow guide layer;
(4) backfilling the repaired acid substrate into a backfilling pit paved with rubbles, and planting vegetation after covering with surface soil.
3. The method for treating the leaching water pollution of the pyrite waste land according to claim 1, wherein the purified water can be used for vegetation irrigation.
4. The method for restoring ecological functions of the abandoned pyrite land, according to claim 2, wherein positive and negative electrodes are inserted on both sides of the restored acidic matrix obtained in step 2, and are electrified to remove heavy metal pollutants by means of electrolysis.
5. The ecological restoration method for the waste land of pyrite according to claim 2, wherein said isolating diversion layer comprises a first rubble layer and a second rubble layer sequentially arranged from top to bottom, and the particle size of the rubble in the first rubble layer is smaller than that of the second rubble layer.
6. The method for treating the pollution of the leaching water of the pyrite waste land and restoring the ecological function according to the claims 1 and 2, wherein the modifier is prepared by mixing and stirring 4-6 parts by mass of slaked lime and 2-3 parts by mass of red mud, adding 3-5 parts by mass of animal wastes, continuously stirring, and uniformly stirring to obtain the modifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891004.8A CN115088412A (en) | 2022-07-27 | 2022-07-27 | Method for treating leaching water pollution and restoring ecological function of pyrite waste land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891004.8A CN115088412A (en) | 2022-07-27 | 2022-07-27 | Method for treating leaching water pollution and restoring ecological function of pyrite waste land |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115088412A true CN115088412A (en) | 2022-09-23 |
Family
ID=83299756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210891004.8A Pending CN115088412A (en) | 2022-07-27 | 2022-07-27 | Method for treating leaching water pollution and restoring ecological function of pyrite waste land |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115088412A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145244A (en) * | 1998-12-11 | 2000-11-14 | Lynntech, Inc. | Methods for enhancing phytoextraction of contaminants from porous media using electrokinetic phenomena |
| CN103420523A (en) * | 2013-09-04 | 2013-12-04 | 安徽新中远化工科技有限公司 | Technology for treating barren rock leaching water and other acid wastewater in low-grade pyrite |
| CN105237078A (en) * | 2015-10-10 | 2016-01-13 | 平顶山市玉龙山生态农业科技发展有限公司 | Fertility increasing agent for soil improvement, and preparation method and application method thereof |
| CN107774708A (en) * | 2017-10-31 | 2018-03-09 | 中冶华天工程技术有限公司 | Mining area periphery polluted farmland soil is administered and repair system method |
| CN108018045A (en) * | 2017-12-22 | 2018-05-11 | 苏州萨瑟斯兰环境科技有限公司 | A kind of organophosphor contaminated soil remediation agent and preparation method thereof |
| CN108271454A (en) * | 2018-01-10 | 2018-07-13 | 中冶华天南京工程技术有限公司 | Pyrite mine discarded ground ecological restoring method |
| US20190161933A1 (en) * | 2017-11-30 | 2019-05-30 | Mining Development & Environmental Management Of Shaanxi Provincial Land Engineering Construction | Isolation and restoration method for compound contaminated soil |
| US20190218120A1 (en) * | 2018-01-18 | 2019-07-18 | Montgomery Chemicals Llc | Process for treating mine drainage |
| CN110590470A (en) * | 2019-08-23 | 2019-12-20 | 湖南芷兰生态环境建设有限公司 | Acid mine restoration matrix modifier and preparation method thereof |
| CN110947753A (en) * | 2019-11-11 | 2020-04-03 | 江西普瑞丰生态科技有限公司 | Effective remediation method for heavy metal soil pollution |
| CN112772039A (en) * | 2020-12-25 | 2021-05-11 | 青海生源园林绿化工程有限公司 | Method for recovering vegetation in abandoned mine land |
-
2022
- 2022-07-27 CN CN202210891004.8A patent/CN115088412A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145244A (en) * | 1998-12-11 | 2000-11-14 | Lynntech, Inc. | Methods for enhancing phytoextraction of contaminants from porous media using electrokinetic phenomena |
| CN103420523A (en) * | 2013-09-04 | 2013-12-04 | 安徽新中远化工科技有限公司 | Technology for treating barren rock leaching water and other acid wastewater in low-grade pyrite |
| CN105237078A (en) * | 2015-10-10 | 2016-01-13 | 平顶山市玉龙山生态农业科技发展有限公司 | Fertility increasing agent for soil improvement, and preparation method and application method thereof |
| CN107774708A (en) * | 2017-10-31 | 2018-03-09 | 中冶华天工程技术有限公司 | Mining area periphery polluted farmland soil is administered and repair system method |
| US20190161933A1 (en) * | 2017-11-30 | 2019-05-30 | Mining Development & Environmental Management Of Shaanxi Provincial Land Engineering Construction | Isolation and restoration method for compound contaminated soil |
| CN108018045A (en) * | 2017-12-22 | 2018-05-11 | 苏州萨瑟斯兰环境科技有限公司 | A kind of organophosphor contaminated soil remediation agent and preparation method thereof |
| CN108271454A (en) * | 2018-01-10 | 2018-07-13 | 中冶华天南京工程技术有限公司 | Pyrite mine discarded ground ecological restoring method |
| US20190218120A1 (en) * | 2018-01-18 | 2019-07-18 | Montgomery Chemicals Llc | Process for treating mine drainage |
| CN110590470A (en) * | 2019-08-23 | 2019-12-20 | 湖南芷兰生态环境建设有限公司 | Acid mine restoration matrix modifier and preparation method thereof |
| CN110947753A (en) * | 2019-11-11 | 2020-04-03 | 江西普瑞丰生态科技有限公司 | Effective remediation method for heavy metal soil pollution |
| CN112772039A (en) * | 2020-12-25 | 2021-05-11 | 青海生源园林绿化工程有限公司 | Method for recovering vegetation in abandoned mine land |
Non-Patent Citations (1)
| Title |
|---|
| 杨胜香;李朝阳;郗玉松;: "矿业废弃物酸化及治理技术研究进展", 地球与环境, no. 03, pages 423 - 428 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110454165B (en) | Repair matrix for abandoned mine pits of limestone quarry and preparation method and landfill method thereof | |
| CN102701545A (en) | System for auxiliarily treating acid mine waste water by utilizing stepped interception dams and process thereof | |
| CN104641755A (en) | Land restoration method for abandoned sand mining field | |
| CN103797922A (en) | Method for recovering vegetation of acidic waste storage yard of non-ferrous metal mine | |
| KR101310150B1 (en) | Nonpoint-Poient Pollution filtration purification device | |
| CN104923544A (en) | Heavy metal dangerous waste in-situ storage and underground water pollution prevention method | |
| Kolbash et al. | Windsor coal company wetland: an overview | |
| CN110683683A (en) | Method for preventing and treating waste water pollution of abandoned mine | |
| CN102605853B (en) | Facility for ecologically treating and recycling rainwater in central business district and method therefor | |
| CN105621786B (en) | A kind of vertical artificial wet land system of upper up-flow for handling agricultural non-point source pollution | |
| CN113333424A (en) | Method for treating storage building garbage landfill stacking points | |
| CN206203996U (en) | A kind of shore protection system for riverway water quality purification | |
| CN205313248U (en) | Infiltration filtration system that high -sulfur coal field sour water was handled | |
| CN211922648U (en) | Ecological restoration type rare earth tailings | |
| CN218232097U (en) | Comprehensive treatment system for pyrite acid wastewater | |
| CN112772039A (en) | Method for recovering vegetation in abandoned mine land | |
| CN103981375A (en) | Gold extraction method by heap leaching | |
| CN115088412A (en) | Method for treating leaching water pollution and restoring ecological function of pyrite waste land | |
| Wiltshire | Innovations in marine ferromanganese oxide tailings disposal | |
| Deng et al. | Comprehensive utilization of resources | |
| Khaustov et al. | Treatment technology of liquid phase at industrial waste landfill | |
| CN112958579B (en) | Copper ore acidic heap leaching field ecological restoration system and method | |
| CN107176748A (en) | A kind of anaerobism, aerobic multistage wet field facilities for treating sewage | |
| CN103741643B (en) | A kind of method transforming river bottom mud physical arrangement | |
| CN206046648U (en) | Heavy metal pollution of soil control device with the surface water of AMD contaminated wastewaters as iirigation water source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |