CN107999038A - A kind of heavy-metal contaminated soil renovation agent and preparation method thereof - Google Patents
A kind of heavy-metal contaminated soil renovation agent and preparation method thereof Download PDFInfo
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- CN107999038A CN107999038A CN201711425330.5A CN201711425330A CN107999038A CN 107999038 A CN107999038 A CN 107999038A CN 201711425330 A CN201711425330 A CN 201711425330A CN 107999038 A CN107999038 A CN 107999038A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
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Abstract
The invention discloses a kind of heavy-metal contaminated soil renovation agent and preparation method thereof, heavy-metal contaminated soil renovation agent is made of the raw material of following parts by weight：40 50 parts of EM bacteria agent, 0.06 0.1 parts of matrine, 12 parts of polyacrylamide, 20 30 parts of sepiolite, 15 25 parts of attapulgite, 35 parts of aluminium polychloride, 35 parts of waterproofing agent, 50 90 parts of lentinan, 46 parts of bacillus subtilis fermentation liquor, 5 10 parts of Sargassum extract, 35 parts of lime, 10 20 parts of cocoanut active charcoal.The present invention is of low cost, easy to operate, using effect is good, easy large-scale promotion；Processing speed is fast, cost is low, dosage is few, and powder shape, is easy to transport and preserves；Original position is launched on the spot, and the contaminated soil of renovation agent and hydrocarbon containing liquid and heavy metal is sufficiently mixed by operating personnel with light instrument, realizes that depth is adsorbed, and is reproduced field vacant lot natural storage after adsorbing pollutant, will not be caused secondary pollution to environment, realizes that ecology is handled.
Description
Technical field
The present invention relates to remediation contaminated soil technical field, is specifically a kind of heavy-metal contaminated soil renovation agent and its preparation
Method.
Background technology
In recent years, the heavy metal pollution problem of China's soil is increasingly shown especially, to ecological environment, food security and health
Serious threat is constituted, can not be ignored.The industrial discharges such as dyestuff, chemical industry, process hides, exploitation of mineral resources, smelting and processing
Exhaust gas, waste water, waste residue contain substantial amounts of heavy metal, by pouring water（It is particularly dirty to fill）, solid waste（Sludge, rubbish etc.）Heap
The mode such as product and atmospheric sedimentation enters soil, causes the increase of heavy metal in soil content, the especially heavy metal of exchangeable species.
When exceeding its capacity in the environment into the heavy metal in environment, you can cause the generation of heavy metal pollution.It is heavy metal-polluted
Dye thing is persistent pollutant, and the harm to environment and human body is difficult to eliminate.Heavy metal has that chemical activity is strong, migration
Greatly, the features such as toxicity is lasting, is difficult degraded in the environment, its accumulation in the soil, migration not only cause composition of the soil, knot
Structure, changes of function, additionally it is possible to suppress crop root effect and photosynthesis, cause crop failure or even have no harvest, it is often more important that
Heavy metal is migrated into the human body by food chain, is accumulated gradually in human body, is caused the chronic heavy metal poisoning of human body, cause kidney
Dirty, liver, lung, bone, reproductive organs, immune system, cardiovascular system injury, high risks are caused to health.
At present, heavy metal-polluted soil recovery technique is broadly divided into phytoremediation, microorganism remediation, physical chemistry reparation and agricultural
Engineering Remediation Techniques.Phytoremediation is that contaminated soil is repaired using plant and its rhizosphere microbial, is planted by super accumulation
Absorption transfer of the thing to heavy metal in soil, phytoremediation can be divided into three plant extract, phytovolatilization, plant stability classifications；
Microorganism remediation refers to, using functional microorganism group that is naturally occurring or manually cultivating, promote or the metabolism of enhancement microbiological is made
With so that reaching reduces toxic pollutant activity in soil or is degraded into the bioremediation technology of innocuous substance.Microorganism is repaiied
Answer a pager's call reason mainly have biological adsorption, bioconversion and microorganism to heavy metal ion redox, dissolving, methylation；
Physical chemistry reparation includes electro reclamation, Soil leaching etc., and electric repairing technique is mainly by heavy-metal contaminated soil both sides
Apply DC electric field and form electric-force gradient, heavy metal contaminants are brought to electrode both ends, so as to reach the mesh of cleaning contaminated soil
's.Soil leaching is to elute contaminated soil by using leacheate or containing the solution that can improve heavy metal soluble reagents,
Heavy metal in solid phase of soil is transferred in liquid phase, then is formed with the compound containing certain ligand or anion with heavy metal
Relatively stable complex compound or generation precipitation；Agriculture project recovery technique refers to the method using physical mechanical, makes contaminated table
Layer soil is with not contaminated living soil covering or goes after skim-coat polluted soil the method for activating lower soil farming.Work
Journey recovery technique mainly has soil removal and replacement, soil moved in improve the original, deep ploughing to dig.
More than heavy metal recovery technique have certain heavy metal repairing effect, but its also respectively have in practical applications it is scarce
Point.The reparation floristics of phytoremediation technology is limited, and its reparation speed is slower, and accumulation plurality of heavy metal plant is located again
The problems such as reason is also the principal element for limiting phytoremediation technology large-scale promotion；Microorganism remediation technology is general only to independent one
The adsorption effect of heavy metal species is preferable, and since microorganism organism is smaller, the heavy metal amount of reparation is also less, therefore this is also limited
The application that large area field repair is carried out using microorganism is made；Electric repairing technique at present also in the experimental study stage, and
Because of the physicochemical property difference of different soils, there is also a series of limiting factor in practical applications；Soil leaching technical operation
It is complicated, expensive；Agriculture project recovery technique needs to consume substantial amounts of manpower, financial resources, and big to soil disturbance.
The content of the invention
It is an object of the invention to provide a kind of heavy-metal contaminated soil renovation agent easy to operate, using effect is good and its
Preparation method, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：40-50 parts of EM bacteria agent, matrine 0.06-
0.1 part, 1-2 parts of polyacrylamide, 20-30 parts of sepiolite, 15-25 parts of attapulgite, 3-5 parts of aluminium polychloride, waterproofing agent 3-5
Part, 50-90 parts of lentinan, 4-6 parts of bacillus subtilis fermentation liquor, 5-10 parts of Sargassum extract, 3-5 parts of lime, coconut husk
10-20 parts of activated carbon.
As the further scheme of the present invention：
The heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：42-48 parts of EM bacteria agent, matrine 0.07-
0.09 part, 1.2-1.8 parts of polyacrylamide, 22-28 parts of sepiolite, 18-22 parts of attapulgite, 3.5-4.5 parts of aluminium polychloride,
3.5-4.5 parts of waterproofing agent, 60-80 parts of lentinan, 4.5-5.5 parts of bacillus subtilis fermentation liquor, Sargassum extract 6-9
Part, 3.5-4.5 parts of lime, 12-18 parts of cocoanut active charcoal.
As the further scheme of the present invention：
The heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：45 parts of EM bacteria agent, 0.08 part of matrine,
1.5 parts of polyacrylamide, 25 parts of sepiolite, 20 parts of attapulgite, 4 parts of aluminium polychloride, 4 parts of waterproofing agent, 70 parts of lentinan,
5 parts of bacillus subtilis fermentation liquor, 8 parts of Sargassum extract, 4 parts of lime, 15 parts of cocoanut active charcoal.
As the further scheme of the present invention：
The waterproofing agent is mixed using phenolic resin, polyvinyl alcohol and rubber powder.
As the further scheme of the present invention：
The granularity of the cocoanut active charcoal is 100-200 mesh.
As further scheme of the invention：
The EM bacteria agent is the Mixed Microbes containing beneficial bacteriums such as photosynthetic bacteria, saccharomycete, lactic acid bacteria, withered grass bacterium, bacillus, green pus bacteriums.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；60-80 DEG C of constant temperature extraction is warming up to after Sargassum Duan Jiashui is mixed, fully
PH is adjusted after extraction to 4.0, and carries out decolorization；Continue to add second after the crude extract after decoloration is concentrated to 1/5 by heating
Alcohol precipitates extract to 75-85% concentration, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 60-80 DEG C is heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing in 10-15 DEG C of low temperature drying, then is packed, that is, is obtained the heavy-metal contaminated soil and repaiied
Multiple agent.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is of low cost, easy to operate, using effect is good, easy large-scale promotion；Processing speed is fast, cost is low, dosage
Few, powder shape, is easy to transport and preserves；Original position is launched on the spot, and operating personnel are with light instrument by renovation agent and hydrocarbon containing liquid
It is sufficiently mixed with the contaminated soil of heavy metal, realizes that depth is adsorbed, reproduces field vacant lot natural storage after adsorbing pollutant, will not be right
Environment causes secondary pollution, realizes that ecology is handled.
Embodiment
The technical solution of this patent is described in more detail with reference to embodiment.
Embodiment 1
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：40 parts of EM bacteria agent, 0.06 part of matrine,
It is 1 part of polyacrylamide, 20 parts of sepiolite, 15 parts of attapulgite, 3 parts of aluminium polychloride, 3 parts of waterproofing agent, 50 parts of lentinan, withered
Careless 4 parts of fermentation of bacillus liquid, 5 parts of Sargassum extract, 3 parts of lime, 10 parts of cocoanut active charcoal.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；60 DEG C of constant temperature extractions, fully extraction are warming up to after Sargassum Duan Jiashui is mixed
PH is adjusted afterwards to 4.0, and carries out decolorization；Continue after the crude extract after decoloration is concentrated to 1/5 by heating plus ethanol arrives
75% concentration precipitates extract, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 60 DEG C are heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing, in 10 DEG C of low temperature dryings, then is packed, that is, obtains the heavy-metal contaminated soil reparation
Agent.
Embodiment 2
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：42 parts of EM bacteria agent, 0.07 part of matrine,
1.2 parts of polyacrylamide, 22 parts of sepiolite, 18 parts of attapulgite, 3.5 parts of aluminium polychloride, 3.5 parts of waterproofing agent, lentinan
60 parts, 4.5 parts of bacillus subtilis fermentation liquor, 6 parts of Sargassum extract, 3.5 parts of lime, 12 parts of cocoanut active charcoal.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；65 DEG C of constant temperature extractions, fully extraction are warming up to after Sargassum Duan Jiashui is mixed
PH is adjusted afterwards to 4.0, and carries out decolorization；Continue after the crude extract after decoloration is concentrated to 1/5 by heating plus ethanol arrives
78% concentration precipitates extract, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 65 DEG C are heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing, in 11 DEG C of low temperature dryings, then is packed, that is, obtains the heavy-metal contaminated soil reparation
Agent.
Embodiment 3
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：45 parts of EM bacteria agent, 0.08 part of matrine,
1.5 parts of polyacrylamide, 25 parts of sepiolite, 20 parts of attapulgite, 4 parts of aluminium polychloride, 4 parts of waterproofing agent, 70 parts of lentinan,
5 parts of bacillus subtilis fermentation liquor, 8 parts of Sargassum extract, 4 parts of lime, 15 parts of cocoanut active charcoal.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；70 DEG C of constant temperature extractions, fully extraction are warming up to after Sargassum Duan Jiashui is mixed
PH is adjusted afterwards to 4.0, and carries out decolorization；Continue after the crude extract after decoloration is concentrated to 1/5 by heating plus ethanol arrives
80% concentration precipitates extract, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 70 DEG C are heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing, in 12 DEG C of low temperature dryings, then is packed, that is, obtains the heavy-metal contaminated soil reparation
Agent.
Embodiment 4
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：48 parts of EM bacteria agent, 0.09 part of matrine,
1.8 parts of polyacrylamide, 28 parts of sepiolite, 22 parts of attapulgite, 4.5 parts of aluminium polychloride, 4.5 parts of waterproofing agent, lentinan
80 parts, 5.5 parts of bacillus subtilis fermentation liquor, 9 parts of Sargassum extract, 4.5 parts of lime, 18 parts of cocoanut active charcoal.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；75 DEG C of constant temperature extractions, fully extraction are warming up to after Sargassum Duan Jiashui is mixed
PH is adjusted afterwards to 4.0, and carries out decolorization；Continue after the crude extract after decoloration is concentrated to 1/5 by heating plus ethanol arrives
82% concentration precipitates extract, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 75 DEG C are heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing, in 14 DEG C of low temperature dryings, then is packed, that is, obtains the heavy-metal contaminated soil reparation
Agent.
Embodiment 5
A kind of heavy-metal contaminated soil renovation agent, is made of the raw material of following parts by weight：50 parts of EM bacteria agent, 0.1 part of matrine, gather
2 parts of acrylamide, 30 parts of sepiolite, 25 parts of attapulgite, 5 parts of aluminium polychloride, 5 parts of waterproofing agent, 90 parts of lentinan, withered grass
6 parts of fermentation of bacillus liquid, 10 parts of Sargassum extract, 5 parts of lime, 20 parts of cocoanut active charcoal.
The preparation method of the heavy-metal contaminated soil renovation agent, comprises the following steps that：
（1）Sargassum is cleaned up into rear segment；80 DEG C of constant temperature extractions, fully extraction are warming up to after Sargassum Duan Jiashui is mixed
PH is adjusted afterwards to 4.0, and carries out decolorization；Continue after the crude extract after decoloration is concentrated to 1/5 by heating plus ethanol arrives
85% concentration precipitates extract, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 80 DEG C are heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing, in 15 DEG C of low temperature dryings, then is packed, that is, obtains the heavy-metal contaminated soil reparation
Agent.
The waterproofing agent is mixed using phenolic resin, polyvinyl alcohol and rubber powder；The granularity of the cocoanut active charcoal is
100-200 mesh；The EM bacteria agent is the mixing containing beneficial bacteriums such as photosynthetic bacteria, saccharomycete, lactic acid bacteria, withered grass bacterium, bacillus, green pus bacteriums
Bacterium.
The present invention is of low cost, easy to operate, using effect is good, easy large-scale promotion；Processing speed is fast, cost is low,
Dosage is few, and powder shape, is easy to transport and preserves；Original position is launched on the spot, and operating personnel by renovation agent and contain liquid with light instrument
The contaminated soil of state hydrocarbon and heavy metal is sufficiently mixed, and realizes that depth is adsorbed, and reproduces field vacant lot natural storage after adsorbing pollutant, no
Secondary pollution can be caused to environment, realize that ecology is handled.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (7)
1. a kind of heavy-metal contaminated soil renovation agent, it is characterised in that be made of the raw material of following parts by weight：EM bacteria agent 40-50
Part, 0.06-0.1 parts of matrine, 1-2 parts of polyacrylamide, 20-30 parts of sepiolite, 15-25 parts of attapulgite, aluminium polychloride
3-5 parts, 3-5 parts of waterproofing agent, 50-90 parts of lentinan, 4-6 parts of bacillus subtilis fermentation liquor, 5-10 parts of Sargassum extract,
3-5 parts of lime, 10-20 parts of cocoanut active charcoal.
2. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that by the raw material group of following parts by weight
Into：42-48 parts of EM bacteria agent, 0.07-0.09 parts of matrine, 1.2-1.8 parts of polyacrylamide, 22-28 parts of sepiolite, attapulgite
18-22 parts, 3.5-4.5 parts of aluminium polychloride, 3.5-4.5 parts of waterproofing agent, 60-80 parts of lentinan, fermentation of bacillus subtilis
4.5-5.5 parts of liquid, 6-9 parts of Sargassum extract, 3.5-4.5 parts of lime, 12-18 parts of cocoanut active charcoal.
3. heavy-metal contaminated soil renovation agent according to claim 1, it is characterised in that by the raw material group of following parts by weight
Into：45 parts of EM bacteria agent, 0.08 part of matrine, 1.5 parts of polyacrylamide, 25 parts of sepiolite, 20 parts of attapulgite, aluminium polychloride
4 parts, 4 parts of waterproofing agent, 70 parts of lentinan, 5 parts of bacillus subtilis fermentation liquor, 8 parts of Sargassum extract, 4 parts of lime, coconut husk
15 parts of activated carbon.
4. according to any heavy-metal contaminated soil renovation agents of claim 1-3, it is characterised in that the waterproofing agent uses
Phenolic resin, polyvinyl alcohol and rubber powder mix.
5. according to any heavy-metal contaminated soil renovation agents of claim 1-3, it is characterised in that the cocoanut active charcoal
Granularity be 100-200 mesh.
6. according to any heavy-metal contaminated soil renovation agents of claim 1-3, it is characterised in that the EM bacteria agent be containing
The Mixed Microbes of the beneficial bacteriums such as photosynthetic bacteria, saccharomycete, lactic acid bacteria, withered grass bacterium, bacillus, green pus bacterium.
A kind of 7. preparation method of heavy-metal contaminated soil renovation agent as described in claim 1-3 is any, it is characterised in that tool
Body step is as follows：
（1）Sargassum is cleaned up into rear segment；60-80 DEG C of constant temperature extraction is warming up to after Sargassum Duan Jiashui is mixed, fully
PH is adjusted after extraction to 4.0, and carries out decolorization；Continue to add second after the crude extract after decoloration is concentrated to 1/5 by heating
Alcohol precipitates extract to 75-85% concentration, isolate to be precipitated as Sargassum extract spare；
（2）By matrine and water in mass ratio 1:1, in matrine plus water mixes, and is ultrasonically treated, obtains mixture slurry；
（3）Polyacrylamide, sepiolite, attapulgite, aluminium polychloride, waterproofing agent, lime, cocoanut active charcoal are added to step
Suddenly（2）In obtained mixture slurry, 60-80 DEG C is heated to, is then ultrasonically treated, obtains mixed solution；
（4）EM bacteria agent, lentinan, bacillus subtilis fermentation liquor and Sargassum extract are added to step（3）Obtain
Mixed solution in, high-pressure homogeneous processing in 10-15 DEG C of low temperature drying, then is packed, that is, is obtained the heavy-metal contaminated soil and repaiied
Multiple agent.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108901234A (en) * | 2018-09-28 | 2018-11-30 | 广西百乐德农业投资有限公司 | A method of adjusting citrus orchard soil performance |
| CN108976066A (en) * | 2018-09-12 | 2018-12-11 | 陕西禾田旺生物科技有限公司旬邑分公司 | A kind of preparation method of environment-protection nano soil conditioner |
| CN109054850A (en) * | 2018-07-18 | 2018-12-21 | 盐城英贝吉环保科技有限公司 | A kind of soil-repairing agent and preparation method thereof |
| CN110116127A (en) * | 2019-05-20 | 2019-08-13 | 淮阴工学院 | A kind of soil remediation method based on modified attapulgite |
| CN110813233A (en) * | 2019-11-04 | 2020-02-21 | 广东省微生物研究所（广东省微生物分析检测中心） | Method for adsorbing heavy metal ions in soil by coconut shell charcoal |
| CN113637484A (en) * | 2021-08-13 | 2021-11-12 | 史丹利农业集团股份有限公司 | Multifunctional soil remediation agent and preparation method thereof |
| CN114029336A (en) * | 2021-12-07 | 2022-02-11 | 浙江水利水电学院 | Soil remediation material and remediation method |
| CN114918243A (en) * | 2022-05-13 | 2022-08-19 | 沈阳瑞丰农业技术开发有限公司 | Remediation agent and remediation method for remediating soil heavy metal pollution |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054850A (en) * | 2018-07-18 | 2018-12-21 | 盐城英贝吉环保科技有限公司 | A kind of soil-repairing agent and preparation method thereof |
| CN108976066A (en) * | 2018-09-12 | 2018-12-11 | 陕西禾田旺生物科技有限公司旬邑分公司 | A kind of preparation method of environment-protection nano soil conditioner |
| CN108901234A (en) * | 2018-09-28 | 2018-11-30 | 广西百乐德农业投资有限公司 | A method of adjusting citrus orchard soil performance |
| CN110116127A (en) * | 2019-05-20 | 2019-08-13 | 淮阴工学院 | A kind of soil remediation method based on modified attapulgite |
| CN110813233A (en) * | 2019-11-04 | 2020-02-21 | 广东省微生物研究所（广东省微生物分析检测中心） | Method for adsorbing heavy metal ions in soil by coconut shell charcoal |
| CN113637484A (en) * | 2021-08-13 | 2021-11-12 | 史丹利农业集团股份有限公司 | Multifunctional soil remediation agent and preparation method thereof |
| CN114029336A (en) * | 2021-12-07 | 2022-02-11 | 浙江水利水电学院 | Soil remediation material and remediation method |
| CN114918243A (en) * | 2022-05-13 | 2022-08-19 | 沈阳瑞丰农业技术开发有限公司 | Remediation agent and remediation method for remediating soil heavy metal pollution |
| CN114918243B (en) * | 2022-05-13 | 2024-05-24 | 沈阳瑞丰农业技术开发有限公司 | Repairing agent and repairing method for repairing heavy metal pollution of soil |
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