CN110116129A - The resistance control of heavy metal pollution of soil former address and vegetation consolidate combined remediation method again - Google Patents
The resistance control of heavy metal pollution of soil former address and vegetation consolidate combined remediation method again Download PDFInfo
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- CN110116129A CN110116129A CN201910331956.2A CN201910331956A CN110116129A CN 110116129 A CN110116129 A CN 110116129A CN 201910331956 A CN201910331956 A CN 201910331956A CN 110116129 A CN110116129 A CN 110116129A
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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
- 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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Abstract
The invention discloses heavy metal pollution of soil former address resistance control and vegetation again consolidate combined remediation method, method includes the following steps: 1) Sub-region and hierarchical digs clearly in place contain heavy metal waste slag and heavy-metal contaminated soil；2) carry out pilot scale and determine optimized solidification/stabilization agent proportion and dosage, then heavy metal waste slag and heavy-metal contaminated soil and the uniformly mixed reaction of medicament will be contained, maintenance is not less than 5 days；3) by the waste residue and contaminated soil progress former address barrier landfill after qualification；4) kind value arbor, shrub, liana and draft after mulching plant soil.The present invention combines restoration of the ecosystem with the remodeling of Abandoned Land of Mine landforms, Soil Reconstruction, revegetation, both improve soil environment quality comprehensively, the benign cycle of the ecosystem is realized again, have the characteristics that repairing effect is stable, without secondary pollution, it can be used for reparation and the ecological recovery of different heavy-metal contaminated soils and waste residue place, especially have good effect to mine and smelting contaminated site heavy metal reparation and ecological recovery.
Description
Technical field
The present invention relates to heavy metal pollution of soil recovery technique fields, specifically heavy metal pollution of soil former address resistance control and plant
Consolidated combined remediation method again.
Background technique
Picking up smelting industry causes the destruction of mine and the periphery ecosystem extremely serious, the especially funeral of soil and vegetation
It loses, soil is made to lose utility value, form discarded ground.Abandoned Land of Mine refer in mining activities be destroyed, the nothing without improvement
The soil that method uses.4 seed types can be divided into according to the source of Abandoned Land of Mine: the 1. discarded ground of hillock；2. mining hole is discarded
Ground；3. Disused tailing land；4. the discarded ground of other types, such as the discarded ground in dressing plant and smeltery's generation.And basis in discarded ground
It is useless that pollution level containing heavy metal waste slag and heavy-metal contaminated soil is divided into high risk waste, the IIth class general industry solid again
Object, the Ith class general industrial solid waste.Mining, barren rock stacking, Ore Transportation, ore beneficiation and smelting can all bring one
It is the most serious to stack the pollution generated with tailing for the pollution problem of series.Acidic mine waste water and tailing are to cause a mining area huge sum of money
The main reason for belonging to pollution.According to statistics, damage to land cumulative area in China mine is up to 2,880,000 hm2, and every year with about 4.67
Ten thousand hm2Speed increase.Wherein non-ferrous metals industry discharges solid waste up to 60,000,000 tons every year, add up 1,000,000,000 tons of volume of cargo in storage with
On, 70,000 hm of land occupation2More than.Meanwhile smelting process can also generate waste water largely containing metal smelting and other heavy metals,
Exhaust gas and solid waste seriously pollute environment, and with regard to 2010, China's lead zinc total output reached nearly 9,600,000 tons, the lead of generation
Zinc abstraction waste residue is more than 8,000,000 tons, and history volume of cargo in storage crosses hundred million tons, and the solid waste generated in smelting process contains largely
The heavy metals such as lead, zinc, cadmium, arsenic, the soil near smeltery is polluted to a certain extent, and the mostly compound dirt of various heavy
Dye.
Mine smelts contaminated site not only land occupation, pollutes environment, influences economic development, and generate not to society
Good action jeopardizes human development.The soil that is destroyed is repaired using corresponding measure to increase land resource, is both to alleviate people
The needs of ground contradiction and mine environment construction, while being the main act for promoting mining economy exploitation with environmental protection coordinated development again
It arranges.The existing much documents about mine soil Compound Heavy Metals restoration of the ecosystem in the country, but majority be based only on cogongrass,
The pionners such as Bermuda grass, Ageratum conyzoides, wild country melon carry out the restoration of the ecosystem in mining area, not in advance to heavy-metal contaminated soil and useless
Slag carries out safe disposal and isolation, is unfavorable for soil pollution blocking, and influence the effect of restoration of the ecosystem, it is difficult to reach country for
The ecosystem of soil environment realizes the requirement of benign cycle.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of resistance controls of heavy metal pollution of soil former address and vegetation to connect firmly again
Restorative procedure is closed, by the method for the invention, by restoration of the ecosystem and the remodeling of Abandoned Land of Mine landforms, Soil Reconstruction, revegetation phase
In conjunction with forming mine and smelt place soil pollution blocking and ecological reestablishment mode, realize that pollution resistance control, ecological functions are extensive
It is multiple.
The present invention solves above-mentioned technical problem with following technical solution:
Resistance control in heavy metal pollution of soil former address of the present invention and vegetation consolidate combined remediation method again, and this method includes following operation
Step:
The first step clears up contaminated site surface, contains heavy metal in place using mechanical according to pollution level
Waste residue and heavy-metal contaminated soil carry out Sub-region and hierarchical excavation, clear digging, and the waste residue after digging clearly and soil are placed in disposal site；
Second step selects suitable curing/stabilizing medicament to carry out pilot scale according to the pollution condition of waste residue and soil, leads to
Cross pilot scale and determine optimized solidification/stabilization agent proportion and dosage, then using soil remediation equipment will contain heavy metal waste slag,
Heavy-metal contaminated soil and curing/stabilizing medicament are uniformly mixed and sufficiently react, then by after reparation waste residue and soil place
The sample detection after maintenance area and the maintenance of covered protection net are not less than 5 days；
Third step establishes landfill yard that meet national standards in the place dug clearly, the waste residue after will test qualification and
Contaminated soil carries out former address barrier landfill；
4th step completes mulching plant soil after landfill, then plants arbor, shrub, liana and the draft plant of heavy metal tolerance
Object carries out restoration of the ecosystem, that is, reaches reparation target.
Contain heavy metal waste slag and heavy-metal contaminated soil in the first step of the present invention, according to the classification of pollution level point
For high risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste；It is chosen in the second step
Curing/stabilizing medicament can make the high risk waste after repairing reach the acceptance criteria of I class general industry solid waste, make after repairing
The leaching concentration of heavy metal meets " surface water environment in IIth class general industrial solid waste, the Ith class general industrial solid waste
Quality standard " (GB3838) Group III limit value requirement.
Curing/stabilizing added amount of chemical in second step of the present invention is required processing waste residue and soil quality
0.5%-10%.
The curing/stabilizing medicament optimum dosage that processing high risk waste of the present invention uses is 4%-10%；Place
Managing the curing/stabilizing medicament optimum dosage that the IIth class general industrial solid waste uses is 2%-5%；Handle the Ith class one
As the curing/stabilizing medicament optimum dosage that uses of industrial solid wastes be 0.5%-4%.
Arbor in 4th step of the present invention is one or more of Schima superba, dry land willow, Whitebackleaf Mallotus Root, masson pine.
Shrub in 4th step of the present invention is one or more of ramie, glossy privet, false indigo, five-leaved chaste tree.
Liana in 4th step of the present invention is one or more of pueraria lobata, parthenocissus, winter creeper.
Draft in 4th step of the present invention is herba setariae viridis, Siberian cocklebur, Chinese silvergrass, Caulis Miscanthis floriduli, Bermuda grass, Ageratum conyzoides, Cowhells
One or more of grass, Phytolacca acinosa, ciliate desert-grass, rape flower, fern, Hairy vetch.
Heavy metal pollution of soil former address provided by the invention resistance control and vegetation consolidate combined remediation method again, are collection solidifications/steady
Fixedization is repaired and barrier landfill, revegetation are in the ecological reestablishment of one.It can solve heavy-metal contaminated soil ecology to repair
The problem of multiple and mine pollution reparation, barrier are handled simultaneously, can be used for the reparation of different heavy-metal contaminated soils and waste residue place
And ecological recovery, especially there is good effect to mine and smelting contaminated site heavy metal reparation and ecological recovery.
Compared with the prior art, the present invention has the following beneficial effects:
(1) after the method for the present invention is repaired, the Leaching of Heavy Metals such as cadmium, arsenic, lead, zinc, chromium, mercury are dense in contaminated soil and waste residue
Degree can be lower than " water environment quality standard " (GB 3838-2002) Group III standard limited value, and barrier landfill meets national standard
It is required that 98% or more ecological recovery rate, the place after reparation is completed ecological functions and is restored；
(2) present invention carries out solidification/stabilization containing heavy metal waste slag and heavy-metal contaminated soil according to different pollution levels
Change pilot scale, determine optimum dosage, while guaranteeing repairing effect, saves pharmaceutical use, reduce the secondary dirt to environment
Dye；
(3) present invention repair using arbor, shrub, liana, draft the ecological recovery in place, is conducive to place ecology
The building of system；
(4) it is green to integrate recovery techniques, the use such as curing/stabilizing reparation and barrier landfill, revegetation by the present invention
Color efficient heavy stabilization agent carries out former address barrier, consolidates technology again in conjunction with the vegetation based on pionner of one's native land plantation,
Utilizing works quarantine measures reduction rainwater, can in mine and the application of smeltery heavy metal pollution place to the Solubility of heavy metal
Heavy metal chronic pollution soil and surrounding body, farmland are prevented, crop safety quality and agricultural performance is improved, both changed comprehensively
Kind soil environment quality, and realize the benign cycle of the ecosystem；
(5) present invention has the characteristics that at low cost, easy to operate, repairing effect is stable, without secondary pollution.
Specific embodiment
It is use example of the invention below:
Embodiment 1:
To 0.2 ten thousand m in certain smeltery, heavy metal pollution place, old site3Contaminated soil and discarded tailing slag, 0.65 ten thousand m3Building
Rubbish, which is carried out, to be repaired, specific steps are as follows:
The first step first clears up contaminated site surface, will contain heavy metal waste slag and heavy-metal contaminated soil is divided into
II class general industrial solid waste, the Ith class general industrial solid waste, it is solid to the IIth class general industry in place using machinery
Body waste, the Ith class general industrial solid waste carry out Sub-region and hierarchical excavation, clear digging, are placed in disposal site；
Second step selects ferrous sulfate and lime to carry out pilot scale as curing/stabilizing medicament, make the waste residue after repairing with
The leaching concentration of heavy metal in soil meets the limit value requirement of " water environment quality standard " (GB3838) Group III, in
Examination determines the best of the curing/stabilizing medicament that the IIth class general industrial solid waste, the Ith class general industrial solid waste use
Dosage be respectively needed for processing waste residue and soil quality 5% (wherein the dosage of ferrous sulfate is that 3%, lime adds
Amount for 2%), 4% (wherein the dosage of ferrous sulfate is 2.5%, the dosage of lime is 1.5%), then repaired using soil
Multiple equipment will contain heavy metal waste slag and heavy-metal contaminated soil and curing/stabilizing medicament is uniformly mixed and sufficiently reacts, and will repair
Waste residue and soil after multiple are placed on maintenance area and covered protection net conserves 7 days sample detections later, according to " solid waste leaches
Toxicity leaching method horizontal vibration method " heavy metal concentration investigates repairing effect, test result in (HJ 557-2010) leachate
It is shown in Table 1；
1 leaching test result 1 of table
Third step, establishes landfill yard in the place dug clearly, and the key technical index of landfill yard meets that " general industry is solid
Body waste storage, disposal site contamination control standard " (GB18599-2013) design requirement, waste residue and pollution after will test qualification
Soil carries out former address barrier landfill；
4th step covers the planting soil of 50cm on the landfill yard that waste residue and soil-burial is completed, then plantation tolerance
Pionner carries out ecology in the native soil such as Schima superba, masson pine, glossy privet, false indigo, pueraria lobata, herba setariae viridis, Siberian cocklebur, Caulis Miscanthis floriduli of heavy metal
It repairs, 98% or more ecological recovery rate, realizes ecological recovery.
Embodiment 2:
To 1.3 ten thousand m in certain dressing plant, heavy metal pollution place, old site3The waste residue of tailing containing heavy metal, 0.7 ten thousand m3Place bottom
And surrounding is carried out reparation by heavy-metal contaminated soil, specific steps are as follows:
The first step first clears up contaminated site surface, will contain heavy metal waste slag and heavy-metal contaminated soil is divided into height
Risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste, using machinery to the high wind in place
Dangerous waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste carry out Sub-region and hierarchical excavation, clear digging, place
In disposal site；
Second step selects magnesium chloride, aluminium chloride and lime to carry out pilot scale as curing/stabilizing medicament, makes after repairing
High risk waste reaches the acceptance criteria of I class general industry solid waste, makes the IIth class general industrial solid waste after repairing, the Ith
The leaching concentration of heavy metal meets the limit of " water environment quality standard " (GB3838) Group III in class general industrial solid waste
Value requires, and determines that high risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste make by pilot scale
The optimum dosage of curing/stabilizing medicament handles 4% (wherein magnesium chloride of waste residue and soil quality needed for being respectively
Dosage is 2.5%, the dosage of aluminium chloride is 1.0%, the dosage of lime be 0.5%), 2% (wherein magnesium chloride adds
Amount be 1.2%, the dosage of aluminium chloride is 0.5%, the dosage of lime be 0.3%), 0.5% (the wherein dosage of magnesium chloride
It is 0.25%, the dosage of aluminium chloride is 0.10%, the dosage of lime is 0.15%), then to use soil remediation equipment will
It is uniformly mixed containing heavy metal waste slag and heavy-metal contaminated soil and curing/stabilizing medicament and sufficiently reacts, it will be useless after reparation
Slag and soil are placed on maintenance area and covered protection net conserves 5 days sample detections later, according to " solid waste Leaching leaches
Method horizontal vibration method " heavy metal concentration investigates repairing effect in (HJ 557-2010) leachate, and test result is shown in Table 2；
2 leaching test result 2 of table
Third step, establishes landfill yard in the place dug clearly, and the key technical index of landfill yard meets that " general industry is solid
Body waste storage, disposal site contamination control standard " (GB18599-2013) design requirement, waste residue and pollution after will test qualification
Soil carries out former address barrier landfill；
4th step covers the planting soil of 50cm on the landfill yard that waste residue and soil-burial is completed, then plantation tolerance
Whitebackleaf Mallotus Root, masson pine, ramie, false indigo, pueraria lobata, winter creeper, Ageratum conyzoides, herba eleusines indicae, Phytolacca acinosa, ciliate desert-grass, the rape of heavy metal
The pionner of one's native land such as spend to carry out restoration of the ecosystem, 98% or more ecological recovery rate realizes ecological recovery.
Embodiment 3: to 10,000 m in certain smeltery, heavy metal pollution place, old site3Containing heavy metal waste slag, 30,000 m3Contaminated soil
Earth, which is carried out, to be repaired, the specific steps are as follows:
The first step first clears up contaminated site surface, will contain heavy metal waste slag and heavy-metal contaminated soil is divided into height
Risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste, using machinery to the waste residue in place
Sub-region and hierarchical excavation, clear digging are carried out with soil, is placed in disposal site；
Second step selects magnesium chloride, aluminium chloride and cement to carry out pilot scale as curing/stabilizing medicament, makes after repairing
High risk waste reaches the acceptance criteria of I class general industry solid waste, makes the IIth class general industrial solid waste after repairing, the Ith
The leaching concentration of heavy metal meets the limit of " water environment quality standard " (GB3838) Group III in class general industrial solid waste
Value requires, and determines that high risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste make by pilot scale
The optimum dosage of curing/stabilizing medicament handles 10% (wherein magnesium chloride of waste residue and soil quality needed for being respectively
Dosage be 4.5%, the dosage of aluminium chloride is 2.5%, the dosage of lime be 3%), 4% (wherein magnesium chloride adds
Amount is 2.0%, the dosage of aluminium chloride is 0.6%, the dosage of lime be 1.4%), 2% (wherein the dosage of magnesium chloride is
1.05%, the dosage of aluminium chloride is 0.45%, the dosage of lime is that 0.5%), then will contain weight using soil remediation equipment
Metal waste residue and heavy-metal contaminated soil and curing/stabilizing medicament are uniformly mixed and sufficiently react, by after reparation waste residue and
Soil is placed on maintenance area and covered protection net conserves 10 days sample detections later, according to " solid waste Leaching leaching side
Method horizontal vibration method " heavy metal concentration investigates repairing effect in (HJ 557-2010) leachate, and test result is shown in Table 3；
3 leaching test result 3 of table
Third step, establishes landfill yard in the place dug clearly, and the key technical index of landfill yard meets that " general industry is solid
Body waste storage, disposal site contamination control standard " (GB18599-2013) design requirement, waste residue and pollution after will test qualification
Soil carries out former address barrier landfill；
4th step covers the planting soil of 50cm on the landfill yard that waste residue and soil-burial is completed, then plantation tolerance
The native soil such as Whitebackleaf Mallotus Root, dry land willow, five-leaved chaste tree, false indigo, pueraria lobata, parthenocissus, Chinese silvergrass, Bermuda grass, fern, Hairy vetch of heavy metal is first
Cutting edge of a knife or a sword plant carries out restoration of the ecosystem, and 98% or more ecological recovery rate realizes ecological recovery.
Embodiment 4:
To 0.6 ten thousand m in certain smeltery, heavy metal pollution place, old site3Melting waste slag containing heavy metal and building waste residue, 2.5 ten thousand
m3Polluted soil, which is carried out, to be repaired, the specific steps are as follows:
The first step first clears up contaminated site surface, will contain heavy metal waste slag and heavy-metal contaminated soil is divided into height
Risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste, using machinery to the waste residue in place
Sub-region and hierarchical excavation, clear digging are carried out with soil, is placed in disposal site；
Second step selects cement to carry out pilot scale as curing/stabilizing medicament, and the high risk waste after repairing is made to reach I
The acceptance criteria of class general industry solid waste keeps the IIth class general industrial solid waste after repairing, the Ith class general industry solid useless
The leaching concentration of heavy metal meets the limit value requirement of " water environment quality standard " (GB3838) Group III in object, passes through pilot scale
Determine that high risk waste, the IIth class general industrial solid waste, the Ith class general industrial solid waste are most preferably added using cement
Amount handles 8%, 3.5%, the 2.5% of waste residue and soil quality needed for being respectively, and then will contain a huge sum of money using soil remediation equipment
Belong to waste residue and heavy-metal contaminated soil and curing/stabilizing medicament is uniformly mixed and sufficiently reacts, by the waste residue and soil after reparation
Earth is placed on maintenance area and covered protection net conserves 10 days sample detections later, according to " solid waste Leaching leaching method
Horizontal vibration method " heavy metal concentration investigates repairing effect in (HJ 557-2010) leachate, and test result is shown in Table 4；
4 leaching test result 4 of table
Third step, establishes landfill yard in the place dug clearly, and the key technical index of landfill yard meets that " general industry is solid
Body waste storage, disposal site contamination control standard " (GB18599-2013) design requirement, waste residue and pollution after will test qualification
Soil carries out former address barrier landfill；
4th step covers the planting soil of 50cm on the landfill yard that waste residue and soil-burial is completed, then plantation tolerance
Whitebackleaf Mallotus Root, masson pine, five-leaved chaste tree, pueraria lobata, Chinese silvergrass, Bermuda grass, herba setariae viridis, Hairy vetch of heavy metal etc. native soil pionner into
Row restoration of the ecosystem, 98% or more ecological recovery rate realize ecological recovery.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the resistance control of heavy metal pollution of soil former address and vegetation consolidate combined remediation method again, which is characterized in that this method includes following
Operating procedure:
The first step clears up contaminated site surface, contains a huge sum of money in place using mechanical according to the classification of pollution level
Belong to waste residue and heavy-metal contaminated soil carries out Sub-region and hierarchical excavation, clear digging, the waste residue after digging clearly and soil are placed on disposal site
It is interior；
Second step selects suitable curing/stabilizing medicament to carry out pilot scale, according to the pollution condition of waste residue and soil
It tries to determine optimized solidification/stabilization agent proportion and dosage, heavy metal waste slag, a huge sum of money then will be contained using soil remediation equipment
Belong to contaminated soil and curing/stabilizing medicament to be uniformly mixed and sufficiently react, then by after reparation waste residue and soil be placed on it is feeding
Sample detection after area and the maintenance of covered protection net are protected not less than 5 days；
Third step establishes landfill yard that meet national standards in the place dug clearly, waste residue and pollution after will test qualification
Soil carries out former address barrier landfill；
4th step completes mulching plant soil after landfill, then plant arbor, shrub, liana and the herbaceous plant of heavy metal tolerance into
Row restoration of the ecosystem reaches reparation target.
2. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 1 again, feature exists
In: contain heavy metal waste slag and heavy-metal contaminated soil in the first step, it is useless to be divided into high risk according to the classification of pollution level
Object, the IIth class general industrial solid waste, the Ith class general industrial solid waste；The curing/stabilizing chosen in the second step
Medicament can make the high risk waste after repairing reach the acceptance criteria of I class general industry solid waste, keep the IIth class after repairing general
The leaching concentration of heavy metal meets " water environment quality standard " in industrial solid wastes, the Ith class general industrial solid waste
(GB3838) the limit value requirement of Group III.
3. resistance control in heavy metal pollution of soil former address according to claim 1 or claim 2 and vegetation consolidate combined remediation method, feature again
Be: the curing/stabilizing added amount of chemical in the second step is the 0.5%-10% of required processing waste residue and soil quality.
4. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 3 again, feature exists
In: the curing/stabilizing medicament optimum dosage that the processing high risk waste uses is 4%-10%；It is general to handle the IIth class
The curing/stabilizing medicament optimum dosage that industrial solid wastes use is 2%-5%；It is useless to handle the Ith class general industry solid
The curing/stabilizing medicament optimum dosage that object uses is 0.5%-4%.
5. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 1 again, feature exists
In: the arbor in the 4th step is one or more of Schima superba, dry land willow, Whitebackleaf Mallotus Root, masson pine.
6. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 1 again, feature exists
In: the shrub in the 4th step is one or more of ramie, glossy privet, false indigo, five-leaved chaste tree.
7. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 1 again, feature exists
In: the liana in the 4th step is one or more of pueraria lobata, parthenocissus, winter creeper.
8. heavy metal pollution of soil former address resistance control and vegetation consolidate combined remediation method according to claim 1 again, feature exists
In: the draft in the 4th step is herba setariae viridis, Siberian cocklebur, Chinese silvergrass, Caulis Miscanthis floriduli, Bermuda grass, Ageratum conyzoides, herba eleusines indicae, Phytolacca acinosa, centipede
One or more of grass, rape flower, fern, Hairy vetch.
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| CN110576036A (en) * | 2019-09-08 | 2019-12-17 | 贵州省分析测试研究院 | Plant planting and repairing method for lead-zinc contaminated soil |
| CN111788895A (en) * | 2020-07-06 | 2020-10-20 | 北京北控生态建设集团有限公司 | Ecological restoration method for abandoned mine terrace enclosure |
| CN113000574A (en) * | 2019-12-20 | 2021-06-22 | 江苏和而同环境建设有限公司 | Method for restoring mine mercury polluted acid soil |
| CN113042520A (en) * | 2021-05-06 | 2021-06-29 | 北京首创环境科技有限公司 | Risk management and control and ecological restoration method for metal mine polluted site |
| CN113369299A (en) * | 2021-06-19 | 2021-09-10 | 江西省红壤研究所 | Method for restoring farmland with light and medium cadmium pollution by utilizing radix puerariae |
| CN113820383A (en) * | 2021-09-13 | 2021-12-21 | 生态环境部华南环境科学研究所 | Waste resin powder piling point soil pollution risk control method based on covering and blocking technology |
| CN114160558A (en) * | 2021-11-16 | 2022-03-11 | 辽宁中博生态环境技术有限公司 | Contaminated soil in-situ chemical barrier material and preparation and application thereof |
| CN114226441A (en) * | 2021-12-08 | 2022-03-25 | 湖北工业大学 | Method for solidifying heavy metal polluted soil and preventing secondary pollution by polyvinyl alcohol |
| CN114444252A (en) * | 2021-11-25 | 2022-05-06 | 中国科学院生态环境研究中心 | Soil environment bearing capacity calculation method based on environment capacity and natural reduction model |
| CN117309980A (en) * | 2023-09-25 | 2023-12-29 | 云南大学 | Method for judging repair of pioneer plants in abandoned lands suitable for metal mining areas |
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| CN110576037A (en) * | 2019-09-18 | 2019-12-17 | 广西博世科环保科技股份有限公司 | Method for repairing polluted soil by intercropping heavy metal super-enriched herbaceous flowers and woody flowers |
| CN113000574A (en) * | 2019-12-20 | 2021-06-22 | 江苏和而同环境建设有限公司 | Method for restoring mine mercury polluted acid soil |
| CN111788895A (en) * | 2020-07-06 | 2020-10-20 | 北京北控生态建设集团有限公司 | Ecological restoration method for abandoned mine terrace enclosure |
| CN113042520A (en) * | 2021-05-06 | 2021-06-29 | 北京首创环境科技有限公司 | Risk management and control and ecological restoration method for metal mine polluted site |
| CN113369299A (en) * | 2021-06-19 | 2021-09-10 | 江西省红壤研究所 | Method for restoring farmland with light and medium cadmium pollution by utilizing radix puerariae |
| CN113820383A (en) * | 2021-09-13 | 2021-12-21 | 生态环境部华南环境科学研究所 | Waste resin powder piling point soil pollution risk control method based on covering and blocking technology |
| CN114160558A (en) * | 2021-11-16 | 2022-03-11 | 辽宁中博生态环境技术有限公司 | Contaminated soil in-situ chemical barrier material and preparation and application thereof |
| CN114160558B (en) * | 2021-11-16 | 2023-10-31 | 辽宁中博生态环境技术有限公司 | In-situ chemical barrier material for polluted soil and preparation and application thereof |
| CN114444252A (en) * | 2021-11-25 | 2022-05-06 | 中国科学院生态环境研究中心 | Soil environment bearing capacity calculation method based on environment capacity and natural reduction model |
| CN114444252B (en) * | 2021-11-25 | 2022-08-26 | 中国科学院生态环境研究中心 | Soil environment bearing capacity calculation method based on environment capacity and natural reduction model |
| CN114226441A (en) * | 2021-12-08 | 2022-03-25 | 湖北工业大学 | Method for solidifying heavy metal polluted soil and preventing secondary pollution by polyvinyl alcohol |
| CN117309980A (en) * | 2023-09-25 | 2023-12-29 | 云南大学 | Method for judging repair of pioneer plants in abandoned lands suitable for metal mining areas |
| CN117309980B (en) * | 2023-09-25 | 2024-03-01 | 云南大学 | Method for judging repair of pioneer plants in abandoned lands suitable for metal mining areas |
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