CN107413838A - One kind contains arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures - Google Patents
One kind contains arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures Download PDFInfo
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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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Abstract
Comprise the following steps the invention discloses one kind containing arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, this method：1) bentonite or/and straw charcoal are added in Compound Heavy Metals soil, is stirred；2) water is added in soil, it is 20% to make soil moisture content, the 2h of stirring reaction 0.5；3) a certain amount of arsenic, antimony pollution soil stabilizer are added, stirs, adds water, soil moisture content is stirred for 30% 50%；4) soil after above-mentioned addition stabilizer is conserved into 3 30d, that is, reaches the purpose of soil remediation.The stabilizing material that the present invention uses has the characteristics that economical and effective, wide material sources, cheap, stability is strong, does not change contaminated soil pH value to soil non-secondary pollution, neutrality, and operating method is simple, practical, applied widely, have to Compound Heavy Metals soil and stabilize repairing effect well, especially there is good stabilisation repairing effect to the heavy-metal composite pollution soil containing arsenic, antimony.
Description
Technical field
The present invention relates to contaminated soil remediation method, specifically a kind of arsenic, antimony and other heavy-metal composite pollution soil are steady
Surely restorative procedure is changed.
Background technology
China's antimonial resources reserves are countries most abundant in the world, account for the 66.2% of world's antimony gross reserves, and the world
Upper maximum antimony ore exploitation, big producer, and China's antimony ore all contains a large amount of arsenic substantially, generally coexists.Antimony, arsenic belong to family
Vertical distribution, its property has a similitude, and separation has very big difficulty, thus with antimony ore mining and smelting
Usually produced in waste gas, waste water, waste residue caused by refining, the weathering of mine tailing and leaching etc. with antimony, the arsenic of high concentration after being smelted such as antimony
Arsenic alkaline slag in containing antimony about 10%, 4-10% containing arsenic, (peeping, 2013)." three wastes " containing High Concentration of Arsenic, antimony can cause periphery
The pollution of a large amount of soil, soil, water body and vegetation around its mining area and smeltery etc. is all by serious antimony pollution, in recent years
Arsenic alkaline slag polluted-water and person poultry poisoning's accident repeatedly occur for the ground such as Hunan, Guizhou, to natural environment around, people's health
Cause greatly to endanger with life security.Arsenic, antimony are the nonessential hypertoxic element of human body, easily to be planted in the presence of solution morphology
Thing absorbs, accumulated and competed with necessary metabolin, causes crop yield and quality decline；Also can by skin, respiratory tract,
The approach such as alimentary canal enter human body, have chronic toxicity and carcinogenicity, and arsenic, antimony combined pollution are even more to have extremely strong toxicity,
It is the main toxic element of Near Antimony Mine Area.In recent years because antimony ore exploitation, smelting cause person poultry poisoning's accident of arsenic, antimony pollution more
Secondary generation, this causes greatly to endanger to natural environment around, people's health and life security.On the other hand, China
The main integrated distribution of antimony ore enriches in the southern provinces and regions such as Hunan, Guizhou, Guangxi, nonferrous metal ore, and antimony, arsenic are close sulphur member
Element, the sulphide ores such as leaded, zinc, cadmium, copper are generally associated with, therefore usually containing highly concentrated in antimony ore mining and smelting, mine tailing
The heavy metals such as the lead of degree, zinc, cadmium, copper, cause the heavy metal pollutions such as Soil Surrounding antimony, arsenic and lead, zinc, cadmium, copper, to animals and plants and
The harm of the mankind is extremely serious.China is as antimony production maximum in the world and using state, the heavy-metal composite pollution faced
The risk of soil is severe more than other countries, serious threat residents ' health and ecological environment.Therefore, to containing antimony, arsenic and other
The effectively improvement of heavy-metal contaminated soil is very urgent.At present in the world on antimony and antimony and other heavy metals research relatively
It is few, especially for the research of Antimony In The Soils and other heavy metals.Therefore, arsenic, antimony and other heavy-metal composite pollutions soil are developed
Effective recovery technique of earth has important practical significance.
Currently, conventional heavy metal-polluted soil administering method mainly has peripheral doses, chemical remediation and biological prosthetic both at home and abroad
Three kinds of methods.Peripheral doses method includes soil moved in improve the original, soil removal and replacement, deep ploughing are digged and Thermal desorption etc., and chemical repair method includes stabilizing
Reparation, Soil leaching and electro reclamation etc., biological renovation method includes animal reparation, phytoremediation and microorganism remediation.Its
In, stabilizing restoration of soil polluted by heavy metal has the characteristics of cost is cheap, repairing efficiency is shorter, easy to implement, can be very well
Ground meets the condition requirement of current China's heavy-metal contaminated soil reparation, by adding stabilization agent, reduce arsenic in soil, antimony and
The available state of other heavy metals, reduce its possibility being absorbed by crops.Accordingly, it is considered to using actual soil, exploitation is suitable for
China's arsenic, antimony and other heavy-metal composite pollution soil stabilization recovery techniques.
For the property of other heavy metal elements such as arsenic, antimony and lead, zinc, cadmium, copper, with reference to the processing material of stibium-containing wastewater,
And consider stabilisation ability, security, economy of stabilization material etc., from iron-bearing materials, alumina-bearing material, swollen
Moisten the materials such as soil compounding.Rich, diversity of the iron-bearing materials in soil, deposit and to environment in arsenic, antimony withhold, move
The importance of shifting, conversion and home to return to, the existing more stabilization for being directed to arsenic in effect and soil of the iron-bearing materials to the antimony in waste water
Change is studied.Clay mineral has to each heavy metal species generally to be stabilized, and its validity has obtained the confirmation of lot of documents.
Entitled " a kind of method of As polluted soil stabilizer and repairing polluted soil "
(CN201210491208.9) propose in technical scheme and arsenic is carried out using montmorillonite, calcium oxide, magnesium carbonate, iron filings compounding
Stabilize and repair, the calcium oxide in the formula has strong basicity, can change the pH of soil, not only easily cause soil hardening, can also
Easily there is burn seedlings, reduce situations such as p fertilizer efficiency；The montmorillonite of use is the composition in bentonite mineral material, if individually making
With the composition, need to be extracted, extraction cost is very high, and 1-2h need to be also calcined at 200-400 DEG C, therefore the formula have into
The problem of this is high.Entitled " a kind of stabilizer for arsenic pollution place soil remediation " (CN201410189191.0's)
Propose in patent of invention and arsenic pollution is repaired suddenly using bentonite, calcium sulfate, iron powder, plant ash compounding, the formula
Middle plant ash needs burning plant to obtain, and acquisition is not easy and cost is high, and burning easily causes secondary pollution, and plant ash belongs to
Basic matterial, the pH of soil can be changed, not be suitable for neutral and basic soil reparation.It is entitled that " heavy metal species are steady
Determine agent " propose that stabilizer formula is sodium bentonite, zeolite powder, sulfydryl-iron in the patent of invention of (CN201510504522.X)
Base modification biological charcoal, reduced iron powder, calcium oxide or calcium hydroxide, the sodium bentonite in the formula is rare, and reserves are few in the world
And cost is high；Sulfydryl-iron-based modification biological charcoal needs modified and high-temperature calcination to prepare, and cost is high；Add calcium oxide or hydroxide
Calcium has strong basicity, the problem of as patent CN201210491208.9 be present.A kind of entitled " stabilization processes arsenic
It is proposed to add stabilizer molysite, clay, dilute in the patent of invention of the method for alkaline residue " (CN201410374883.2) into arsenic alkaline slag
Acid solution, this method add dilute acid soln, if for that in soil, can have strong destructiveness to soil, be unfavorable for follow-up soil
The utilization of earth.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of arsenic, antimony and other heavy-metal composite pollution soil stabilizations
Restorative procedure, this method can realize High Concentration of Arsenic, antimony and other heavy-metal composite pollution soil stabilization reparations, and this method
Have the advantages that simple to operate, cost is low, secondary pollution will not be caused.
The present invention solves above-mentioned technical problem with following technical scheme：
The present invention contains arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, comprises the following steps：
The first step, a certain amount of bentonite or/and straw charcoal are added in Compound Heavy Metals soil, is stirred；
Second step, a certain amount of water is added in above-mentioned soil, it is 20% to make soil moisture content, stirring reaction 0.5-2h；
3rd step, a certain amount of arsenic, antimony pollution soil stabilizer are added, is stirred, a certain amount of water is added, makes soil
Earth moisture content is 30%-50%, is stirred；
4th step, the soil after above-mentioned addition stabilizer is conserved into 3-30d, that is, reaches the purpose of soil remediation.
The total addition level of bentonite or/and straw charcoal of the present invention is the 0.1%- of combined contamination soil dry mass
2.4%.
Arsenic of the present invention, antimony pollution soil stabilizer are using iron powder, titanium dioxide three-iron, Fe-Mn compounds, titanium dioxide
One or more of mixing in manganese, alundum (Al2O3), aluminium hydroxide, bauxite powder.
Arsenic of the present invention, the 0.4%- that the total addition level of antimony pollution soil stabilizer is combined contamination soil dry mass
6.4%.
The inventive method compared with prior art, has advantages below：
(1) from bentonite, straw charcoal, iron powder, titanium dioxide three-iron, Fe-Mn compounds, manganese dioxide, alundum (Al2O3),
Aluminium hydroxide, bauxite etc. be stabilizer prepared by raw material have economical and effective, wide material sources, cheap, stability strong and
The characteristics of to soil non-secondary pollution；
(2) stabilizing material used in the present invention is neutrality, stabilizes repair process and does not change contaminated soil pH value, is beneficial to
The later use of soil；
(3) restorative procedure step of the present invention is simple, applied widely, practical；
(4) the stabilisation restorative procedure used in the present invention has to stabilize well to Compound Heavy Metals soil and repaired
Effect, especially there is good stabilisation repairing effect to the heavy-metal composite pollution soil containing arsenic, antimony.
Embodiment
The concrete operation step containing arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures of the invention is：
The first step, a certain amount of bentonite or/and straw charcoal are added in Compound Heavy Metals soil, is stirred；
Second step, a certain amount of water is added in above-mentioned soil, it is 20% to make soil moisture content, stirring reaction 0.5-2h；
3rd step, a certain amount of arsenic, antimony pollution soil stabilizer are added, is stirred, a certain amount of water is added, makes soil
Earth moisture content is 30%-50%, is stirred；
4th step, the soil after above-mentioned addition stabilizer is conserved into 3-30d, that is, reaches the purpose of soil remediation.
Bentonite or/and straw charcoal described in the first step of the present invention, its total addition level account for combined contamination soil dry mass
0.1%-2.4%.
Arsenic, antimony pollution soil stabilizer described in 3rd step of the invention are iron powder, titanium dioxide three-iron, Fe-Mn compounds, two
One or more of mixing in manganese oxide, alundum (Al2O3), aluminium hydroxide, bauxite powder, its total addition level account for combined pollution
The 0.4%-6.4% of soil dry mass.
The inventive method is further described below by way of specific embodiment：
Embodiment 1：The swelling for accounting for soil dry mass 2.4% is added in the original soil (Compound Heavy Metals soil) of table 1
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 0.5h；Add and account for soil dry mass
0.6% di-iron trioxide, stirs, and adds a certain amount of water, and it is 30% to make soil moisture content, is stirred；Will be upper
The soil maintenance 14d after addition stabilizer is stated, that is, reaches the purpose of soil remediation.According to《Solid waste Leaching leaching side
Method sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil in leachate, surveys
Test result is shown in Table 1.
The contaminated soil leaching test result of table 1
Embodiment 2：The stalk for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 2
Charcoal, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 0.5h；Add and account for soil dry mass
2.4% di-iron trioxide, stirs, and adds a certain amount of water, and it is 40% to make soil moisture content, is stirred；Will be upper
The soil maintenance 7d after addition stabilizer is stated, that is, reaches the purpose of soil remediation.According to《Solid waste Leaching leaching method
Sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil, test in leachate
It the results are shown in Table 2.
The contaminated soil leaching test result of table 2
Embodiment 3：The stalk for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 3
Charcoal and the bentonite for accounting for soil dry mass 0.6%, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring
React 1h；The di-iron trioxide for accounting for soil dry mass 1.8% is added, is stirred, a certain amount of water is added, contains soil
Water rate is 40%, is stirred；Soil after above-mentioned addition stabilizer is conserved into 7d, that is, reaches the purpose of soil remediation.According to
《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates stabilization in leachate
The effect of agent repairing polluted soil, test result are shown in Table 3.
The contaminated soil leaching test result of table 3
Embodiment 4：The swelling for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 4
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
1.8% di-iron trioxide and the aluminium hydroxide for accounting for soil dry mass 0.6%, stir, add a certain amount of water, make soil
Earth moisture content is 50%, is stirred；Soil after above-mentioned addition stabilizer is conserved into 7d, that is, reaches the purpose of soil remediation.
According to《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration is investigated in leachate
The effect of stabilizer repairing polluted soil, test result are shown in Table 4.
The contaminated soil leaching test result of table 4
Embodiment 5：The swelling for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 5
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
2.4% bauxite, stirs, and adds a certain amount of water, and it is 40% to make soil moisture content, is stirred；Add above-mentioned
Add the soil after stabilizer to conserve 7d, that is, reach the purpose of soil remediation.According to《Solid waste Leaching leaching method sulfuric acid
Nitrate method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil, test result in leachate
It is shown in Table 5.
The contaminated soil leaching test result of table 5
Embodiment 6：The swelling for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 6
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
1.75% di-iron trioxide and the manganese dioxide for accounting for soil dry mass 0.65%, stir, add a certain amount of water, make
Soil moisture content is 40%, is stirred；Soil after above-mentioned addition stabilizer is conserved into 7d, that is, reaches the mesh of soil remediation
's.According to《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration is examined in leachate
The effect of stabilizer repairing polluted soil is examined, test result is shown in Table 6.
The contaminated soil leaching test result of table 6
Embodiment 7：The swelling for accounting for soil dry mass 1.5% is added in the original soil (Compound Heavy Metals soil) of table 7
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 2h；Add and account for soil dry mass
1.5% iron powder, stirs, and adds a certain amount of water, and it is 40% to make soil moisture content, is stirred；By above-mentioned addition
Soil maintenance 7d after stabilizer, that is, reach the purpose of soil remediation.According to《Solid waste Leaching leaching method sulfuric acid nitre
Acid system》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil in leachate, and test result is shown in
Table 7.
The contaminated soil leaching test result of table 7
Embodiment 8：The swelling for accounting for soil dry mass 0.6% is added in the original soil (Compound Heavy Metals soil) of table 8
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
1.57% iron powder and the manganese dioxide for accounting for soil dry mass 0.83%, stir, add a certain amount of water, contain soil
Water rate is 40%, is stirred；Soil after above-mentioned addition stabilizer is conserved into 3d, that is, reaches the purpose of soil remediation.According to
《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates stabilization in leachate
The effect of agent repairing polluted soil, test result are shown in Table 8.
The contaminated soil leaching test result of table 8
Embodiment 9：The swelling for accounting for soil dry mass 1.6% is added in the original soil (Compound Heavy Metals soil) of table 9
Soil, stir；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 2h；Add and account for soil dry mass
6.4% iron powder, stirs, and adds a certain amount of water, and it is 40% to make soil moisture content, is stirred；By above-mentioned addition
Soil maintenance 15d after stabilizer, that is, reach the purpose of soil remediation.According to《Solid waste Leaching leaching method sulfuric acid
Nitrate method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil, test result in leachate
It is shown in Table 9.
The contaminated soil leaching test result of table 9
Embodiment 10：Added in the original soil (Compound Heavy Metals soil) of table 10 and account for the swollen of soil dry mass 0.1%
Profit soil, stirs；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
0.4% Fe-Mn compounds, stir, and add a certain amount of water, and it is 40% to make soil moisture content, is stirred；Will be upper
The soil maintenance 15d after addition stabilizer is stated, that is, reaches the purpose of soil remediation.According to《Solid waste Leaching leaching side
Method sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil in leachate, surveys
Test result is shown in Table 10.
The contaminated soil leaching test result of table 10
Embodiment 11：Added in the original soil (Compound Heavy Metals soil) of table 11 and account for the swollen of soil dry mass 1.0%
Profit soil, stirs；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 0.5h；Add and account for soil dry matter
The Fe-Mn compounds of amount 4.0%, stir, add a certain amount of water, and it is 30% to make soil moisture content, is stirred；Will
Soil maintenance 7d after above-mentioned addition stabilizer, that is, reach the purpose of soil remediation.According to《Solid waste Leaching leaching side
Method sulfonitric method》(HJ/T299-2007) heavy metal concentration investigates the effect of stabilizer repairing polluted soil in leachate, surveys
Test result is shown in Table 11.
The contaminated soil leaching test result of table 11
Embodiment 12：Added in the original soil (Compound Heavy Metals soil) of table 12 and account for the swollen of soil dry mass 0.6%
Profit soil, stirs；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 0.5h；Add and account for soil dry matter
The iron powder of amount 1.8% and the alundum (Al2O3) for accounting for soil dry mass 0.6%, stir, add a certain amount of water, make soil
Moisture content is 40%, is stirred；Soil after above-mentioned addition stabilizer is conserved into 30d, that is, reaches the purpose of soil remediation.Root
According to《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration is investigated surely in leachate
Determine the effect of agent repairing polluted soil, test result is shown in Table 12.
The contaminated soil leaching test result of table 12
Embodiment 13：Added in the original soil (Compound Heavy Metals soil) of table 13 and account for the swollen of soil dry mass 0.6%
Profit soil, stirs；A certain amount of water is added, it is 20% to make soil moisture content, stirring reaction 1h；Add and account for soil dry mass
1.8% Fe-Mn compounds and the alundum (Al2O3) for accounting for soil dry mass 0.6%, stir, add a certain amount of water,
It is 40% to make soil moisture content, is stirred；Soil after above-mentioned addition stabilizer is conserved into 7d, that is, reaches the mesh of soil remediation
's.According to《Solid waste Leaching leaching method sulfonitric method》(HJ/T299-2007) heavy metal concentration is examined in leachate
The effect of stabilizer repairing polluted soil is examined, test result is shown in Table 13.
The contaminated soil leaching test result of table 13
Claims (4)
1. one kind contains arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, it is characterised in that including following step
Suddenly：
The first step, a certain amount of bentonite or/and straw charcoal are added in Compound Heavy Metals soil, is stirred；
Second step, a certain amount of water is added in above-mentioned soil, it is 20% to make soil moisture content, stirring reaction 0.5-2h；
3rd step, a certain amount of arsenic, antimony pollution soil stabilizer are added, is stirred, a certain amount of water is added, contains soil
Water rate is 30%-50%, is stirred；
4th step, the soil after above-mentioned addition stabilizer is conserved into 3-30d, that is, reaches the purpose of soil remediation.
2. exist according to claim 1 containing arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, its feature
In the total addition level of the bentonite or/and straw charcoal is the 0.1%-2.4% of combined contamination soil dry mass.
3. according to claim 1 or claim 2 contain arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, it is special
Sign is that described arsenic, antimony pollution soil stabilizer are using iron powder, titanium dioxide three-iron, Fe-Mn compounds, manganese dioxide, three oxygen
Change one or more of mixing in two aluminium, aluminium hydroxide, bauxite powder.
4. exist according to claim 3 containing arsenic, antimony and other heavy-metal composite pollution soil stabilization restorative procedures, its feature
In the arsenic, the 0.4%-6.4% that the total addition level of antimony pollution soil stabilizer is combined contamination soil dry mass.
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| CN108059958A (en) * | 2018-01-02 | 2018-05-22 | 湖南金旅环保股份有限公司 | A kind of antimony pollution place soil stabilization renovation agent and preparation method thereof |
| CN109054858A (en) * | 2018-09-17 | 2018-12-21 | 中国地质大学（北京） | A kind of configuration and application method of dilute scattered non-ferrous metal tailings modifying agent |
| CN109233881A (en) * | 2018-10-09 | 2019-01-18 | 中南大学 | Stalk processing method, charcoal and its preparation method and application |
| CN110000204A (en) * | 2019-04-12 | 2019-07-12 | 华南理工大学 | A kind of soil remediation material and the application in the reparation of arsenic lead heavy-metal contaminated soil |
| CN110238185A (en) * | 2019-06-14 | 2019-09-17 | 广州润方环保科技有限公司 | A kind of repair materials and its restorative procedure of heavy-metal contaminated soil |
| CN110408403A (en) * | 2019-08-27 | 2019-11-05 | 东南大学 | A kind of antimony pollution soil-repairing agent and preparation method thereof based on clay mineral doping |
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| CN111278948A (en) * | 2017-12-15 | 2020-06-12 | 株式会社神户制钢所 | Arsenic absorption inhibitor, soil and cultivation method |
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| CN112457863A (en) * | 2020-12-10 | 2021-03-09 | 南京清科中晟环境技术有限公司 | Heavy metal antimony contaminated soil remediation agent |
| CN112479608A (en) * | 2020-11-23 | 2021-03-12 | 中冶南方都市环保工程技术股份有限公司 | Curing and stabilizing agent for antimony tailings in mining area and application thereof |
| CN112940729A (en) * | 2021-01-29 | 2021-06-11 | 北京大学 | Remediation agent for heavy metal combined contaminated soil and use method |
| CN113355096A (en) * | 2021-07-22 | 2021-09-07 | 南京大学 | Application of carbon-based repair material in repairing of antimony-arsenic polluted soil and preparation method |
| CN113441538A (en) * | 2021-06-25 | 2021-09-28 | 中国科学院沈阳应用生态研究所 | Sulfur-induced stabilization treatment method for iron-rich antimony-polluted soil |
| CN114289491A (en) * | 2021-12-27 | 2022-04-08 | 桂润环境科技股份有限公司 | Arsenic-antimony composite polluted soil remediation agent and preparation method and application thereof |
| CN114774130A (en) * | 2022-04-15 | 2022-07-22 | 哈尔滨工业大学 | Modified clay mineral for repairing arsenic-lead-antimony composite contaminated soil and preparation method and application thereof |
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