CN104531158A - Curing agent and curing method thereof - Google Patents
Curing agent and curing method thereof Download PDFInfo
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- CN104531158A CN104531158A CN201410744961.3A CN201410744961A CN104531158A CN 104531158 A CN104531158 A CN 104531158A CN 201410744961 A CN201410744961 A CN 201410744961A CN 104531158 A CN104531158 A CN 104531158A
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- solidifying agent
- peat
- lime
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- flyash
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- 238000001723 curing Methods 0.000 title abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 67
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000003415 peat Substances 0.000 claims abstract description 29
- 239000010881 fly ash Substances 0.000 claims abstract description 27
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 25
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 25
- 239000004571 lime Substances 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007711 solidification Methods 0.000 claims description 25
- 230000008023 solidification Effects 0.000 claims description 25
- 229910052745 lead Inorganic materials 0.000 claims description 11
- 229910052785 arsenic Inorganic materials 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 8
- HUWSZNZAROKDRZ-RRLWZMAJSA-N (3r,4r)-3-azaniumyl-5-[[(2s,3r)-1-[(2s)-2,3-dicarboxypyrrolidin-1-yl]-3-methyl-1-oxopentan-2-yl]amino]-5-oxo-4-sulfanylpentane-1-sulfonate Chemical compound OS(=O)(=O)CC[C@@H](N)[C@@H](S)C(=O)N[C@@H]([C@H](C)CC)C(=O)N1CCC(C(O)=O)[C@H]1C(O)=O HUWSZNZAROKDRZ-RRLWZMAJSA-N 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002881 soil fertilizer Substances 0.000 abstract 1
- 238000002386 leaching Methods 0.000 description 24
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- -1 fully stir 10min Substances 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009393 electroremediation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Abstract
The invention relates to a curing agent and a curing method thereof. The polluted soil heavy metal curing agent is characterized by comprising, by weight, 30-40% of fly ash, 35-51% of lime, and 19-35% of peat. According to the present invention, when the curing agent is used to treat the polluted soil, the curing agent and the heavy metal-polluted soil are completely mixed according to a weight ratio of 1:15 so as to obtain a mixed material, water with the amount of 40% of the weight of the mixed material is added, and complete stirring mixing is performed; and the polluted soil heavy metal curing agent completely adopts the nature minerals as the raw materials so as not to produce secondary pollution, and the heavy metals are cured while the soil fertilizer efficiency can be effectively improved so as to solve the technical problems of significant soil pH value changing and soil hardening of the existing chemical repair method.
Description
Technical field
The invention belongs to field of environment engineering technology, particularly relate to a kind of solidifying agent and using method.
Background technology
Heavy metal generally refers to the about 45 kind elements of proportion at more than 5.0g/cm3.A huge sum of money in Study on environmental pollution
Owner will refer to the significant element of bio-toxicity such as Pb, Cd, Hg, Cr and metalloid As, also comprises the element such as heavy metal Zn, Cu, Co, Ni and Sn with certain toxicity.The cadmium rice event of domestic priority generation, caused party and state to show great attention in recent years.On February 18th, 2011, " heavy metal contamination integrated control " 12 " planning " obtains State Council and formally gives an written reply, become first granted " 12 " planning, according to this planning requirement, following 5 years, the special fund that state revenue will drop into about 75,000,000,000 yuan, integrated control heavy metal contamination.
Heavy metal pollution of soil refers to that heavy metal inputs in soil by mankind's activity, causes heavy metal content in soil apparently higher than background content, and the phenomenon causing eco-environmental quality to worsen.Current heavy-metal contaminated soil restorative procedure mainly contains following several:
First is visitor's (changing) local method: change new uncontamination soil after partly or entirely being removed by table soil, or in contaminated soil Surface mulch uncontamination soil or mixing, make the contact of Pollutant levels reduction or decreasing pollution thing and root system of plant, reach the object alleviating harm.This methods engineering amount is large, investment cost is high, destructible soil structures, and the dirt soil swapped out need be dealt carefully with, and is not suitable for the improvement of pollution in wide area soil.
Second is Electroremediation: plug electrode at contaminated soil two ends, after switching on power, charged particle in soil moves on the different electrode of polarity, then to be collected by electrode by engineering measure and processes, to reach the object removing Heavy Metals in Contaminated Soils.Galvanic action distance is too little because actual contaminated soil area is generally comparatively large for this method, be therefore difficult to promote, and running cost is too high.
3rd is phytoremediation: absorb heavy metal in soil mainly through super enriching plant, heavy metal is transferred to plant
Over-ground part, then gathers in the aboveground vegetation part of enriching heavy metal, reclaims heavy metal after burning, reaches the order repaired and pollute
.This method affects comparatively large by envrionment conditions and disease and pest, and is subject to the restriction of plant growing and growth, and the cycle is longer, repairs
Efficiency is lower.
4th is chemical leaching method: adopt specific chemical reagent to be leached out by the heavy metal in contaminated soil, then
The waste liquid leached out is processed.This method cost is higher, and enters soil for the chemical reagent of washed off soil and easily cause secondary pollution.
5th is solidification and stabilization: general solidifying agent and the Heavy Metals in Contaminated Soils of adopting reacts, and generates stable material, thus reduces the Leaching of heavy metal, reach reparation object.
At present, solidification treatment administers one of wider technology of heavy metal pollution of soil application both at home and abroad.Research comparative maturity is lime, flyash fixing Pb, Cr, Cu, Zn.But for Pb, As combined pollution, also there is no effective administering method.Because be conducive to the fixing of Pb in higher pH situation, but be unfavorable for that As's is fixing, otherwise what in lower pH situation, be conducive to As is fixedly unfavorable for that Pb's is fixing; Pb easily leaches at a low ph.Therefore, prepare that suitable solidifying agent, solidification effect are good, non-secondary pollution, cheap solidifying agent become the gordian technique that heavy-metal contaminated soil is repaired, explore and prepare solidifying agent with natural mineral or waste for starting material and become the important research direction that heavy-metal contaminated soil repairs.
Summary of the invention
1, the technical problem to be solved in the present invention overcomes the deficiencies in the prior art, organic curing agent and inorganic solidification agent combinationally used, and enables to reach to Pb, As two heavy metal species object of solidifying simultaneously.And the collaborative effect strengthening heavy metals immobilization between component, the heavy metal-polluted soil Leaching leaching yield after solidification can reach " the related request of Hazardous wastes judging standard leaching characteristic identification (GB5085.3-2007).
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of solidifying agent and curing thereof, and by weight percentage, described solidifying agent is grouped into by following three kinds of one-tenth: flyash 30%-40%, lime 35%-51%, peat 19%-35%.
Preferably, described dye soil-solidified-agent adds the flyash of 30%, the lime of 35%, the peat of 35%; Or 40% flyash, 40% lime, 20% peat; Or 30% flyash, 51% lime, 19% peat, or 37% flyash, 41% lime, 22% peat.
The invention provides the preparation method of solidifying agent, present method comprises:
1) flyash, lime, peat is taken in the ratio of setting, for subsequent use:
2) by peat 400 DEG C of calcining 4 h in retort furnace.
3) fully mixed by the peat after flyash, lime, calcining, obtain solidifying agent, wherein first to utilize ball milling instrument powder fully to pulverize remix even for coal ash, lime, peat.
The present invention also provides solidifying agent to solidify the method for Heavy Metals in Contaminated Soils, and the method comprises the following steps:
1) be that 1:15 mixes by described solidifying agent and the weight ratio of heavy-metal contaminated soil, stir, obtain compound;
2) add described compound 40%(weight ratio) water, stir, leave standstill shaping, carry out maintenance, complete solidification.
The method of described solidifying agent solidification Heavy Metals in Contaminated Soils, in described step 1), is that 1:15 mixes by described solidifying agent weight and the weight ratio of contaminated soil.
The method of described solidifying agent solidification Heavy Metals in Contaminated Soils, described step 2) in churning time be 10min, solidify 15 days.
The method of described solidifying agent solidification Heavy Metals in Contaminated Soils, described step 2) surface of solidifying in maintenance processes adopts diaphragm seal.
The method of described solidifying agent solidification Heavy Metals in Contaminated Soils, the heavy metal ion in described heavy metal pollution of soil is Pb, As.
The present invention has following beneficial effect:
The inorganic amendment heavy metal that mainly utilizes of the present invention has stronger inhibition, plays the principle of organic materials to the stronger regulatory function of Soil Fertility Quality simultaneously.Flyash is comparatively large in China's quantity discharged at present, and it not only has stronger metal adsorption ability, and can generate the material with pozzolanic activity under the high temperature conditions, and its main component is silicon-dioxide and aluminium sesquioxide, and major part is in amorphous state.The principle of solidification of flyash importantly can generate precipitate metal hydroxides with heavy metal, also there is the surface complexation effect of flocs unit surface mass simultaneously, by adding the mode of industrial flyash as Curing agent, mix heavy metal contaminated soil to be cured with lime, can effective curing heavy metal, and with low cost.Again this basis adds peat and can not affect fixing Pb on the whole, be conducive to the absorption to As, can also change due to problems such as soil pH that lime fly ash causes are too high, soil compaction, increase soil microorganisms and enzymic activity, thus strengthen soil fertility level.
Use the heavy-metal contaminated soil of solidification treatment of the present invention, " dangerous according to People's Republic of China's standard
Refuse judging standard leaching characteristic identification " the Hazardous wastes leaching characteristic identification of (GB5085.3-2007), its experimental result data is lower than Extraction Toxicity Identification Standard of Hazardous Waste value.Compared with prior art, the invention has the advantages that: technical scheme of the present invention is cured by utilizing lime, flyash and peat heavy metal contaminated soil, utilizes inorganic organic curing material to solidify Pb and As simultaneously.Both process the pollution problem of heavy metal, make use of again this kind of industrial waste of flyash simultaneously.In addition, solidifying agent of the present invention and curing not only raw material sources are extensive, low cost of manufacture, and solidification treatment cost relative moderate especially, heavy metal soil after overcuring, under extreme conditions its Leaching of Heavy Metals concentration is still lower than the limit value in Hazardous wastes judging standard, and toxicity risk obviously reduces, and solidification effect is ideal.
Embodiment
Detailed description below by embodiment illustrates the present invention further, but is not to limit of the present invention
System, only does example explanation.
Embodiment 1
1) take the flyash that weight percent is 30%, the lime of 35%, the peat of 35%, peat first calcines 4h at retort furnace under 400 DEG C of high temperature, utilizes ball milling instrument to be fully pulverized and mixed, obtains solidifying agent;
2) take Pb, As contaminated soil 100g, add the above-mentioned solidifying agent of 15g, stir, add described compound 40%(weight ratio) tap water, fully stir 10min, mix, adopt diaphragm seal, leave standstill maintenance 15 days;
3) 15 days after fixing bodies use solid waste Leaching leaching method-hac buffer method (HJ/T300-2007) to obtain leach liquor respectively, and adopt " mensuration of soil pH " (agricultural industry criteria NY/T 1377-2007) to measure soil pH value.
After testing, after the leaching concentration of Pb drops to solidification by 34.1 mg/L before solidifying, 3.8mg/L is lower than detected value, and the leaching concentration of As drops to the 2.0mg/L after solidification lower than detectability by 21.2 mg/L before solidifying, and pH value stabilization is about 5.78.
Embodiment 2
1) take the flyash that weight percent is 40%, the lime of 40%, the peat of 20%, peat first calcines 4 h at retort furnace under 400 DEG C of high temperature, utilizes ball milling instrument to be fully pulverized and mixed, obtains solidifying agent;
2) take Pb, As contaminated soil 100g, add the above-mentioned solidifying agent of 15g, stir, add described compound 40%(weight ratio) tap water, fully stir 10min, mix, adopt diaphragm seal, leave standstill maintenance 15 days;
3) 15 days after fixing bodies use solid waste Leaching leaching method-hac buffer method (HJ/T300-2007) to obtain leach liquor respectively, and adopt " mensuration of soil pH " (agricultural industry criteria NY/T 1377-2007) to measure soil pH value.
After testing, after the leaching concentration of Pb drops to solidification by 34.8 mg/L before solidifying, 3.3mg/L is lower than detected value, and the leaching concentration of As drops to the 2.1mg/L after solidification lower than detectability by 21.5 mg/L before solidifying, and pH value stabilization is about 5.82.
Embodiment 3
1) take the flyash that weight percent is 30%, the lime of 51%, the peat of 19%, peat first calcines 4h at retort furnace under 400 DEG C of high temperature, utilizes ball milling instrument to be fully pulverized and mixed, obtains solidifying agent;
2) take Pb, As contaminated soil 100g, add the above-mentioned solidifying agent of 15g, stir, add described compound 40%(weight ratio) tap water, fully stir 10min, mix, adopt diaphragm seal, leave standstill maintenance 15 days;
3) 15 days after fixing bodies use solid waste Leaching leaching method-hac buffer method (HJ/T300-2007) to obtain leach liquor respectively, and adopt " mensuration of soil pH " (agricultural industry criteria NY/T 1377-2007) to measure soil pH value.
After testing, after the leaching concentration of Pb drops to solidification by 33.6 mg/L before solidifying, 2.5mg/L is lower than detected value, and the leaching concentration of As drops to the 2.4mg/L after solidification lower than detectability by 22.3 mg/L before solidifying, and pH value stabilization is about 5.8.
Embodiment 4
1) take the flyash that weight percent is 37%, the lime of 41%, the peat of 22%, peat first calcines 4h at retort furnace under 40 DEG C of high temperature, utilizes ball milling instrument to be fully pulverized and mixed, obtains solidifying agent;
2) take Pb, As contaminated soil 100g, add the above-mentioned solidifying agent of 15g, stir, add described compound 40%(weight ratio) tap water, fully stir 10min, mix, adopt diaphragm seal, leave standstill maintenance 15 days;
3) 15 days after fixing bodies use solid waste Leaching leaching method-hac buffer method (HJ/T300-2007) to obtain leach liquor respectively, and adopt " mensuration of soil pH " (agricultural industry criteria NY/T 1377-2007) to measure soil pH value.
After testing, after the leaching concentration of Pb drops to solidification by 34.8 mg/L before solidifying, 2.7mg/L is lower than detected value, and the leaching concentration of As drops to the 1.7mg/L after solidification lower than detectability by 21.3 mg/L before solidifying, and pH value stabilization is about 5.8.
Claims (9)
1. a solidifying agent, is characterized in that: by weight percentage, and described solidifying agent is grouped into by following three kinds of one-tenth: flyash 30%-40%, lime 35%-51%, peat 19%-35%.
2. solidifying agent according to claim 1, is characterized in that: add the flyash of 30%, the lime of 35%, the peat of 35%; Or 40% flyash, 40% lime, 20% peat; Or 30% flyash, 51% lime, 19% peat, or 37% flyash, 41% lime, 22% peat.
3. the preparation method of solidifying agent according to claim 1 or 2, is characterized in that,
1) flyash, lime, peat is taken in the ratio of setting, for subsequent use:
2) by peat 400 DEG C of calcining 4h in retort furnace;
3) peat after flyash, lime, calcining is fully mixed, obtain solidifying agent.
4. the preparation method of solidifying agent according to claim 3, is characterized in that, first utilize ball milling instrument that flyash, lime, peat are fully pulverized remix even.
5. solidifying agent solidifies the method for Heavy Metals in Contaminated Soils according to claim 4, it is characterized in that:
1) be that 1:15 mixes by described solidifying agent and the weight ratio of heavy-metal contaminated soil, stir, obtain compound;
2) add described compound 40%(weight ratio) water, stir, leave standstill shaping, carry out maintenance, complete solidification.
6. solidifying agent solidifies the method for Heavy Metals in Contaminated Soils according to claim 5, and it is characterized in that, in described step 1), be that 1:10 mixes by described solidifying agent weight and the weight ratio of contaminated soil.
7. according to claim 6 solidifying agent solidification Heavy Metals in Contaminated Soils method, it is characterized in that, described step 2) in churning time be 10min, solidify 15 days.
8. the method for solidifying agent solidification Heavy Metals in Contaminated Soils according to claim 7, is characterized in that, described step 2) surface of solidifying in maintenance processes adopts diaphragm seal.
9. solidifying agent solidifies the method for Heavy Metals in Contaminated Soils according to claim 8, and it is characterized in that, the heavy metal ion in described heavy metal pollution of soil is Pb, As.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410744961.3A CN104531158B (en) | 2014-12-09 | 2014-12-09 | A kind of curing agent and its curing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744961.3A CN104531158B (en) | 2014-12-09 | 2014-12-09 | A kind of curing agent and its curing method |
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| CN104531158A true CN104531158A (en) | 2015-04-22 |
| CN104531158B CN104531158B (en) | 2019-01-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598156A (en) * | 2016-01-14 | 2016-05-25 | 中国矿业大学 | Heavy metal curing agent and method for treating heavy metal compound contaminated soil by same |
| CN106316336A (en) * | 2016-08-22 | 2017-01-11 | 桂林新艺制冷设备有限责任公司 | High-strength soil stabilizer and preparation method thereof |
| CN106348681A (en) * | 2016-08-22 | 2017-01-25 | 桂林新艺制冷设备有限责任公司 | Soil solidifying agent and preparation method thereof |
| CN106398705A (en) * | 2016-08-19 | 2017-02-15 | 常州大学 | Solidifying agent for stabilizing heavy metal Zn in soil and using method thereof |
| CN110665958A (en) * | 2019-11-04 | 2020-01-10 | 首钢环境产业有限公司 | Stabilizing agent and method for repairing arsenic-polluted soil by using urban solid waste |
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| CN102746850A (en) * | 2012-07-02 | 2012-10-24 | 浩蓝环保股份有限公司 | Preparation method of fly ash stabilizing agent for managing heavy metal pollution |
| CN104056855A (en) * | 2014-06-27 | 2014-09-24 | 山鑫科陶科技（北京）股份有限公司 | Reparation method of polluted soil |
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2014
- 2014-12-09 CN CN201410744961.3A patent/CN104531158B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102746850A (en) * | 2012-07-02 | 2012-10-24 | 浩蓝环保股份有限公司 | Preparation method of fly ash stabilizing agent for managing heavy metal pollution |
| CN104056855A (en) * | 2014-06-27 | 2014-09-24 | 山鑫科陶科技（北京）股份有限公司 | Reparation method of polluted soil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598156A (en) * | 2016-01-14 | 2016-05-25 | 中国矿业大学 | Heavy metal curing agent and method for treating heavy metal compound contaminated soil by same |
| CN106398705A (en) * | 2016-08-19 | 2017-02-15 | 常州大学 | Solidifying agent for stabilizing heavy metal Zn in soil and using method thereof |
| CN106316336A (en) * | 2016-08-22 | 2017-01-11 | 桂林新艺制冷设备有限责任公司 | High-strength soil stabilizer and preparation method thereof |
| CN106348681A (en) * | 2016-08-22 | 2017-01-25 | 桂林新艺制冷设备有限责任公司 | Soil solidifying agent and preparation method thereof |
| CN110665958A (en) * | 2019-11-04 | 2020-01-10 | 首钢环境产业有限公司 | Stabilizing agent and method for repairing arsenic-polluted soil by using urban solid waste |
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| Publication number | Publication date |
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| CN104531158B (en) | 2019-01-18 |
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