CN107311269A - A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution - Google Patents
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution Download PDFInfo
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- CN107311269A CN107311269A CN201710388120.7A CN201710388120A CN107311269A CN 107311269 A CN107311269 A CN 107311269A CN 201710388120 A CN201710388120 A CN 201710388120A CN 107311269 A CN107311269 A CN 107311269A
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0221—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention provides a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution, and it will contain ore deposit water-bearing layer underground water and be promoted to earth's surface collecting-tank by drawing liquid well；The underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit；The concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond, as reuse stoste, the waste liquid extracted into hydrometallurgy workshop after uranium, extraction uranium, which enters, matches somebody with somebody liquid pool, then is back to water-bearing layer containing ore deposit by injection well；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as；The fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.The present invention can solve the problem that the underground water pollution of water-bearing layer containing ore deposit that ground-dipping uranium extraction process is caused, and realize the synthetical recovery of valuable mineral, reduces cost for wastewater treatment, reaches the purpose of upgrading synergy.
Description
Technical field
The invention belongs to the groundwater restoration technique of ground-dipping uranium extraction, it is related to the underground water of water-bearing layer containing ore deposit in ground-dipping uranium extraction field
A kind of method recovered and administered, and in particular to method of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution.
Background technology
Ground-dipping uranium extraction technology has many advantages, such as compared with conventional production technique, including capital expenditure is few, the construction period
Short, small to environmental disruption the advantages of, but injection chemical reagent can all be polluted to underground water for a long time, and chemical reagent can also be with arteries and veins
Stone ore thing chemically reacts, so as to cause the water quality of water-bearing layer containing ore deposit to change, even being adopted extensively in world wide at present
CO2And O2Ground-dipping uranium extraction technology, can also be polluted to underground water.
The underground water pollution situation that in-situ leach mining is caused is not quite similar according to production practice and national governments to environmental requirement,
Two aspects are concentrated mainly on to the control of pollution of underground aquifers containing ore deposit during ground-dipping uranium extraction.One is to use to pollute relatively low change
Reagent is learned to leach, including alkaline ground dipping uranium extracting process, neutrality (CO2And O2Ground-dipping uranium extraction technology), reduction is caused to water-bearing layer containing ore deposit
Pollution.Two be the control of molten leaching scope, including the laterally control of molten leaching scope (leaching agent spreads or disperse to exploiting field periphery)
With the control (leaching agent of water-bearing layer containing ore deposit water-bearing layer seepage above and below) of the molten leaching scope in longitudinal direction.
Top, bottom plate are fluid-tight mud stone above and below water-bearing layer containing ore deposit, so when ground-dipping uranium extraction stops production, underground water pollution
It is concentrated mainly on the water-bearing layer containing ore deposit in exploiting field.
The method that mine is recovered and administered to the quality of groundwater of water-bearing layer containing ore deposit both at home and abroad at present mainly has removing method, reverse osmosis
Saturating method, natural purification method and plus H2S reducing process.Removing method is to extract underground water from water-bearing layer containing ore deposit out, and nature is carried out in earth's surface
Evaporation process, peripheral underground water supplement has the disadvantage that underground water dynamic water level declines very fast, waste water evaporation capacity is big, is easily damaged drawing liquid
Equipment；Hyperfiltration is to extract the underground water of water-bearing layer containing ore deposit out, progress earth's surface reverse-osmosis treated, fresh water reuse, and concentrated water discharge is extremely
Evaporation tank, has the disadvantage that useful uranium metal is not reclaimed, causes the wasting of resources and environmental pollution；Other both of which exists different
The drawbacks of, including cost it is high, administer cycle length and cause secondary pollution.
The content of the invention
It is an object of the invention to provide a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution, its U.S. energy
The underground water pollution of water-bearing layer containing ore deposit that ground-dipping uranium extraction process is caused enough is solved, the synthetical recovery of valuable mineral is realized, waste water is reduced
Processing cost, reaches the purpose of upgrading synergy.
Realize the technical scheme of the object of the invention：A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution,
It comprises the following steps：
(a) after uranium ore well site exploiting field stops production or be retired, leachate average uranium concentration in exploiting field is less than or equal to 3mg/L or leaching
When extracting rate is reached more than or equal to 75%, step (b) is carried out to the underground water of water-bearing layer containing ore deposit to the processing of step (e)；
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well；
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit；
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond,
As reuse stoste, uranium is extracted into hydrometallurgy workshop, the waste liquid after uranium is extracted and enters and match somebody with somebody liquid pool, then is back to and contains by injection well
Ore deposit water-bearing layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as；
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, its step (a) is to containing ore deposit
It is the chemical component concentrations of water-bearing layer containing ore deposit and its natural environment water-bearing layer containing ore deposit underground water that water-bearing layer underground water, which carries out processing end point,
Background values is identical.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in it through counter-infiltration
The fresh water that device is produced is less than or equal to 3 with concentrated water volume ratio：1.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in it through counter-infiltration
The fresh water and concentrated water ratio that device is produced are less than or equal to 3：1, outer displacement is less than 25%.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in it through counter-infiltration
The fresh water that device is produced is (1.5~3) with concentrated water volume ratio：1.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in its step (d)
The liquid filling pressure of injection well is 1.0~3.0MPa.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in its step (d)
The liquid filling pressure of injection well is 1.5~2.0MPa.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in its step (e)
The liquid filling pressure of injection well is 1.0~3.0MPa.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in its step (e)
The liquid filling pressure of injection well is 1.5~2.0MPa.
A kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution as described above, described in its step (d)
Into stoste pond concentrated water through hydrometallurgy workshop handle after waste liquid uranium concentration be less than or equal to 0.5mg/L.
Effect of the invention is that：A kind of side of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution of the present invention
Method, it is the improvement and restoration methods for ground-dipping uranium extraction water-bearing layer containing ore deposit underground water.The present invention can solve the problem that ground-dipping uranium extraction mistake
The Cheng Zaocheng underground water pollution of water-bearing layer containing ore deposit, realizes the synthetical recovery of valuable mineral, reduces cost for wastewater treatment, reaches upgrading
The purpose of synergy.
Brief description of the drawings
Fig. 1 is a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution process chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground of the present invention
The method of water pollution is further described.
Embodiment 1
By taking certain uranium ore as an example, as shown in figure 1, using a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground of the present invention
The method of water pollution, it comprises the following steps：
(a) after uranium ore well site exploiting field stops production or be retired, when leachate average uranium concentration in exploiting field is less than or equal to 3mg/L,
Step (b) is carried out to the underground water of water-bearing layer containing ore deposit to the processing of step (e).
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well.
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit.
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond,
As reuse stoste, uranium is extracted into hydrometallurgy workshop, the waste liquid after uranium is extracted and enters and match somebody with somebody liquid pool, then is back to and contains by injection well
Ore deposit water-bearing layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as.The fluid injection of described injection well
Pressure is 1.5MPa.Waste liquid uranium concentration after the concentrated water in described entrance stoste pond is handled through hydrometallurgy workshop is less than 0.5mg/L.
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.It is described
Injection well liquid filling pressure be 1.5MPa.
(f) it is the chemical component concentrations of water-bearing layer containing ore deposit and day that the present invention, which carries out processing end point to the underground water of water-bearing layer containing ore deposit,
Right situation water-bearing layer containing ore deposit underground water background values is identical.
The above-mentioned fresh water and concentrated water volume ratio 2 produced through reverse osmosis unit：1, outer displacement is less than 25%.
Embodiment 2
By taking certain uranium ore as an example, as shown in figure 1, using a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground of the present invention
The method of water pollution, it comprises the following steps：
(a) after uranium ore well site exploiting field stops production or be retired, when exploiting field leaching rate is reached more than or equal to 75%, to containing containing ore deposit
Water layer underground water carries out step (b) to the processing of step (e).
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well.
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit.
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond,
As reuse stoste, uranium is extracted into hydrometallurgy workshop, the waste liquid after uranium is extracted and enters and match somebody with somebody liquid pool, then is back to and contains by injection well
Ore deposit water-bearing layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as.The fluid injection of described injection well
Pressure is 2.0MPa.Waste liquid uranium concentration after the concentrated water in described entrance stoste pond is handled through hydrometallurgy workshop is less than 0.5mg/L.
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.It is described
Injection well liquid filling pressure be 2.0MPa.
(f) it is the chemical component concentrations of water-bearing layer containing ore deposit and day that the present invention, which carries out processing end point to the underground water of water-bearing layer containing ore deposit,
Right situation water-bearing layer containing ore deposit underground water background values is identical.
The above-mentioned fresh water produced through reverse osmosis unit is less than or equal to 3 with concentrated water volume ratio：1, outer displacement is less than
25%.
Embodiment 3
By taking certain uranium ore as an example, as shown in figure 1, using a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground of the present invention
The method of water pollution, it comprises the following steps：
(a) after uranium ore well site exploiting field stops production or be retired, when leachate average uranium concentration in exploiting field is less than or equal to 3mg/L,
Step (b) is carried out to the underground water of water-bearing layer containing ore deposit to the processing of step (e).
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well.
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit.
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond,
As reuse stoste, uranium is extracted into hydrometallurgy workshop, the waste liquid after uranium is extracted and enters and match somebody with somebody liquid pool, then is back to and contains by injection well
Ore deposit water-bearing layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as.The fluid injection of described injection well
Pressure is 1.0MPa.Waste liquid uranium concentration after the concentrated water in described entrance stoste pond is handled through hydrometallurgy workshop is less than or equal to
0.5mg/L。
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.It is described
Injection well liquid filling pressure be 1.0MPa.
(f) it is the chemical component concentrations of water-bearing layer containing ore deposit and day that the present invention, which carries out processing end point to the underground water of water-bearing layer containing ore deposit,
Right situation water-bearing layer containing ore deposit underground water background values is identical.
The above-mentioned fresh water and concentrated water volume ratio 2.5 produced through reverse osmosis unit：1, outer displacement is less than 25%.
Embodiment 4
By taking certain uranium ore as an example, as shown in figure 1, using a kind of reduction ground-dipping uranium extraction water-bearing layer containing ore deposit underground of the present invention
The method of water pollution, it comprises the following steps：
(a) after uranium ore well site exploiting field stops production or be retired, when exploiting field leaching rate is reached more than or equal to 75%, to containing containing ore deposit
Water layer underground water carries out step (b) to the processing of step (e).
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well.
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit.
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond,
As reuse stoste, uranium is extracted into hydrometallurgy workshop, the waste liquid after uranium is extracted and enters and match somebody with somebody liquid pool, then is back to and contains by injection well
Ore deposit water-bearing layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as.The fluid injection of described injection well
Pressure is 3.0MPa.Waste liquid uranium concentration after the concentrated water in described entrance stoste pond is handled through hydrometallurgy workshop is less than or equal to
0.5mg/L。
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.It is described
Injection well liquid filling pressure be 3.0MPa.
(f) it is the chemical component concentrations of water-bearing layer containing ore deposit and day that the present invention, which carries out processing end point to the underground water of water-bearing layer containing ore deposit,
Right situation water-bearing layer containing ore deposit underground water background values is identical.
The above-mentioned fresh water and concentrated water volume ratio 1.5 produced through reverse osmosis unit：1, outer displacement is less than 25%.
Claims (10)
1. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution, it is characterised in that：This method includes following step
Suddenly：
(a) after uranium ore well site exploiting field stops production or be retired, leachate average uranium concentration in exploiting field is less than or equal to 3mg/L or leaching rate
When reaching more than or equal to 75%, step (b) is carried out to the underground water of water-bearing layer containing ore deposit to the processing of step (e)；
(b) ore deposit water-bearing layer underground water will be contained and earth's surface collecting-tank is promoted to by drawing liquid well；
(c) underground water of water-bearing layer containing ore deposit in collecting-tank enters reverse osmosis unit；
(d) concentrated water that reverse osmosis unit is produced, when uranium concentration is more than or equal to 6mg/L, by concentrated water discharge to stoste pond, as
Reuse stoste, uranium is extracted into hydrometallurgy workshop, is extracted the waste liquid after uranium and is entered and match somebody with somebody liquid pool, then is back to and contains containing ore deposit by injection well
Water layer；When uranium concentration is less than 6mg/L, by concentrated water discharge to evaporation tank, waste water is used as；
(e) fresh water that reverse osmosis unit is produced, which enters, matches somebody with somebody liquid pool, is returned to by injection well to water-bearing layer containing ore deposit.
2. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 1, its feature exists
In：It is the chemical component concentrations of water-bearing layer containing ore deposit and its natural environment that step (a), which carries out processing end point to the underground water of water-bearing layer containing ore deposit,
The underground water background values of water-bearing layer containing ore deposit is identical.
3. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 1, its feature exists
In：The described fresh water produced through reverse osmosis unit is less than or equal to 3 with concentrated water volume ratio：1.
4. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 3, its feature exists
In：The described fresh water produced through reverse osmosis unit and concentrated water ratio are less than or equal to 3：1, outer displacement is less than 25%.
5. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 4, its feature exists
In：The described fresh water produced through reverse osmosis unit and concentrated water volume ratio are (1.5~3)：1.
6. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 1, its feature exists
In：The liquid filling pressure of injection well described in step (d) is 1.0~3.0MPa.
7. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 6, its feature exists
In：The liquid filling pressure of injection well described in step (d) is 1.5~2.0MPa.
8. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 1, its feature exists
In：The liquid filling pressure of injection well described in step (e) is 1.0~3.0MPa.
9. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 8, its feature exists
In：The liquid filling pressure of injection well described in step (e) is 1.5~2.0MPa.
10. a kind of method for reducing ground-dipping uranium extraction water-bearing layer containing ore deposit underground water pollution according to claim 1, its feature exists
In：Waste liquid uranium concentration after the concentrated water in the entrance stoste pond described in step (d) is handled through hydrometallurgy workshop is less than or equal to 0.5mg/
L。
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| CN107818241A (en) * | 2017-11-23 | 2018-03-20 | 中核第四研究设计工程有限公司 | It is a kind of can ground leaching uranium deposit leach end point computational methods |
| CN108460223A (en) * | 2018-03-19 | 2018-08-28 | 核工业北京化工冶金研究院 | A kind of quantitative analysis method for ground-dipping uranium extraction flow field |
| CN114014463A (en) * | 2021-11-08 | 2022-02-08 | 核工业北京化工冶金研究院 | Underground water surface treatment method and ex-service treatment method of in-situ leaching uranium mining base |
| CN114029325A (en) * | 2021-11-08 | 2022-02-11 | 核工业北京化工冶金研究院 | Method for replacing and repairing underground water of in-situ leaching uranium mining base by adopting sewage pumping and cleaning |
| CN114054491A (en) * | 2021-11-08 | 2022-02-18 | 核工业北京化工冶金研究院 | Method for in-situ remediation of ground water polluted by in-situ leaching uranium mining by adopting alkaline reduction |
| CN114082770A (en) * | 2021-11-08 | 2022-02-25 | 核工业北京化工冶金研究院 | Large-boundary buffering, pumping and blocking reducing method |
| CN116239205A (en) * | 2023-05-11 | 2023-06-09 | 中核第四研究设计工程有限公司 | Polluted underground water restoration method for in-situ leaching uranium mine |
| CN116333699A (en) * | 2023-03-16 | 2023-06-27 | 中南大学 | Well filling material for in-situ leaching uranium extraction well and application method |
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Cited By (11)
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| CN107818241A (en) * | 2017-11-23 | 2018-03-20 | 中核第四研究设计工程有限公司 | It is a kind of can ground leaching uranium deposit leach end point computational methods |
| CN108460223A (en) * | 2018-03-19 | 2018-08-28 | 核工业北京化工冶金研究院 | A kind of quantitative analysis method for ground-dipping uranium extraction flow field |
| CN108460223B (en) * | 2018-03-19 | 2021-10-22 | 核工业北京化工冶金研究院 | Quantitative analysis method for in-situ leaching uranium mining flow field |
| CN114014463A (en) * | 2021-11-08 | 2022-02-08 | 核工业北京化工冶金研究院 | Underground water surface treatment method and ex-service treatment method of in-situ leaching uranium mining base |
| CN114029325A (en) * | 2021-11-08 | 2022-02-11 | 核工业北京化工冶金研究院 | Method for replacing and repairing underground water of in-situ leaching uranium mining base by adopting sewage pumping and cleaning |
| CN114054491A (en) * | 2021-11-08 | 2022-02-18 | 核工业北京化工冶金研究院 | Method for in-situ remediation of ground water polluted by in-situ leaching uranium mining by adopting alkaline reduction |
| CN114082770A (en) * | 2021-11-08 | 2022-02-25 | 核工业北京化工冶金研究院 | Large-boundary buffering, pumping and blocking reducing method |
| CN116333699A (en) * | 2023-03-16 | 2023-06-27 | 中南大学 | Well filling material for in-situ leaching uranium extraction well and application method |
| CN116333699B (en) * | 2023-03-16 | 2024-03-29 | 中南大学 | Well filling material for in-situ leaching uranium extraction well and application method |
| CN116239205A (en) * | 2023-05-11 | 2023-06-09 | 中核第四研究设计工程有限公司 | Polluted underground water restoration method for in-situ leaching uranium mine |
| CN116239205B (en) * | 2023-05-11 | 2023-08-04 | 中核第四研究设计工程有限公司 | Polluted underground water restoration method for in-situ leaching uranium mine |
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