CN106947495A - A kind of efficient soil-repairing agent and preparation method thereof - Google Patents
A kind of efficient soil-repairing agent and preparation method thereof Download PDFInfo
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- CN106947495A CN106947495A CN201710291118.8A CN201710291118A CN106947495A CN 106947495 A CN106947495 A CN 106947495A CN 201710291118 A CN201710291118 A CN 201710291118A CN 106947495 A CN106947495 A CN 106947495A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of efficient soil-repairing agent and preparation method thereof, it is related to soil-repairing agent technical field, includes the raw material of following part meter：100 ~ 120 parts of 90 ~ 110 parts of attapulgite, modified 70 ~ 80 parts of medical stone, 55 ~ 65 parts of biomass material, 45 ~ 55 parts of composite bacteria liquid, 30 ~ 40 parts of organic fertilizer, 25 ~ 30 parts of carbonate, 15 ~ 25 parts of binding agent and water.The present invention can be in efficient absorption soil heavy metal ion, act on comprehensive, practical to soil remediation and improving effect significantly, it is harmless to crop seed, root system, plant growth can also be stimulated, strengthen crop immunity.
Description
Technical field
The present invention relates to soil-repairing agent technical field, and in particular to a kind of efficient soil-repairing agent and preparation method thereof.
Background technology
Heavy metal described in terms of the environmental pollution, is primarily referred to as mercury, arsenic, lead, chromium, cadmium etc., these heavy metal polluted soils
Earth, not only causes soil productivity to decline and make grain drop in production, and in plant and animal cylinder accumulation and can enter food
Chain, or enter by contaminated air the respiratory tract of people, into human body after and protein, enzyme etc. occur strong interaction, make
They lose activity, it is also possible to accumulated in some organs of human body and endanger health.
Heavy metal pollution of soil main source has industrial pollution source, agricultural pollution source and communications and transportation etc..Because of industrial production
The heavy metal pollution that the growing material demand of aggravation and the mankind with Mining Development is brought in increase year by year gesture.
Heavy metal pollution of soil not only brings huge economic loss because directly contributing grain drop in production, and through water, big
The media such as gas, plant or food chain are finally detrimental to health.More seriously this pollution with chronicity, it is disguised and
The characteristics of irreversibility, be a stubborn problem to heavy metal pollution of soil reparation therefore.
The content of the invention
It is an object of the invention to provide a kind of efficient soil-repairing agent and preparation method thereof, weight that can be in efficient absorption soil
Metal ion, it is notable to soil remediation and improving effect, act on comprehensive, practical, it is harmless to crop seed, root system, may be used also
To stimulate plant growth, strengthen crop immunity.
The invention provides following technical scheme：A kind of efficient soil-repairing agent, includes the raw material of following part meter：It is concavo-convex
90 ~ 110 parts of rod soil, modified 70 ~ 80 parts of medical stone, 55 ~ 65 parts of biomass material, 45 ~ 55 parts of composite bacteria liquid, organic fertilizer 30 ~ 40
100 ~ 120 parts of part, 25 ~ 30 parts of carbonate, 15 ~ 25 parts of binding agent and water；
The organic fertilizer includes the raw material that following part is counted：10 ~ 25 parts of husk carbon, 2 ~ 10 parts of soybean cake, 2 ~ 8 parts of Carapax Eriocheir sinensis powder, grass
0.2 ~ 1.2 part of 1 ~ 3 part of wood ash, 1 ~ 2 part of manioc waste, 1 ~ 2 part of cow dung and leavening.
Preferably, the raw material of following part meter is included：100 parts of attapulgite, modified 75 parts of medical stone, biomass material 60
Part, 50 parts of composite bacteria liquid, 35 parts of organic fertilizer, 27 parts of carbonate, 20 parts of binding agent and 110 parts of water；
The organic fertilizer includes the raw material that following part is counted：18 parts of husk carbon, 6 parts of soybean cake, 5 parts of Carapax Eriocheir sinensis powder, 2 parts of plant ash,
0.8 part of 1.5 parts of manioc waste, 1.5 parts of cow dung and leavening.
Preferably, the modified medical stone includes the raw material that following part is counted：25 ~ 35 parts of medical stone, 15 ~ 20 parts of chitosan,
10 ~ 20 parts of 2 ~ 10 parts of potassium peroxydisulfate, 2 ~ 8 parts of phytic acid and deionized water.
Preferably, the preparation method of the modified medical stone is：By medical stone under the conditions of 400 ~ 500 DEG C high-temperature calcination 2 ~
It is put into after 3h, taking-up in reaction vessel, adds potassium peroxydisulfate, chitosan and deionized water, mixes 20 ~ 30min of reaction, so
Phytic acid continuation 10 ~ 20min of stirring reaction is added afterwards and obtains mixed material, and mixed material obtains being modified wheat meal through dry and crushing
Stone.
Preferably, the biomass material is agricultural crop straw or bamboo and wood discarded object.
Preferably, the composite bacteria liquid is bacillus, Trichoderma, probiotics and saccharomycete mixture, the carbonate
For calcium carbonate or magnesium carbonate.
Preferably, the binding agent is the one or more in CMS, dextrin and diatomite.
Preferably, the leavening is saccharomyces cerevisiae or Trichoderma viride.
The present invention also provides a kind of preparation method of efficient soil-repairing agent, comprises the following steps：
（1）, attapulgite purification processes：Attapulgite is ground into 0.5 ~ 2mm of particle diameter particle, 1 ~ 2% is then soaked in
Sodium hydroxide solution in 3 ~ 4h purified, filtration drying obtains the attapulgite powder after purification processes；
（2）, attapulgite modified processing：By step（2）Obtained attapulgite powder adds the second that mass concentration is 10 ~ 15%
In alcoholic solution, 15 ~ 25min is stirred with 200 ~ 300r/min of rotating speed, then by ultrasonically treated, higher suspension concave convex rod is obtained after standing
Native alcohol suspending liquid, filtering, it is 6 ~ 8 to be washed to pH value, refilters, is dried to obtain the attapulgite powder of modification, standby；
（3）, biomass material is put into pulverizer crushing, fibre length control is 5~10mm, and it is 5 ~ 8% to dry to moisture content,
Biomass material powder is obtained, it is standby；
（4）, by step（2）The attapulgite powder and step of obtained modification（3）Obtained biomass material powder is mixed
Close, surplus stock is sequentially added according to proportioning, after being well mixed in feeding granulating disc, and coordinate the appropriate vapor of addition
Granulation, the efficient soil-repairing agent is obtained after the particle drying produced, cooling, screening.
Beneficial effects of the present invention：Heavy metal ion that can be in efficient absorption soil, it is aobvious to soil remediation and improving effect
Write, act on comprehensive, practical, it is harmless to crop seed, root system, plant growth can also be stimulated, strengthens crop immunity, tool
Body is as follows：
（1）, the present invention each material composition of soil-repairing agent it is harmless to human body and environment, environmental protection, wherein, with concave convex rod
Soil is primary raw material, can be stabilized and increased, the physics function of balanced soil, and attapulgite resource is abundant, raw material is cheap, manufacture
Low cost, modification is done to attapulgite, and the modification liveness of attapulgite is improved using the principle of chemical reaction so that
The modification of attapulgite is more thorough, and attapulgite is activated to greatest extent, increases its interfloor distance, suction-operated enhancing,
The heavy metal ion in soil can efficiently be adsorbed；
（2）, the present invention in processing is modified to medical stone with chitosan, be used as initiator, chitosan molecule with potassium peroxydisulfate
Substantial amounts of hydrogen bond is contained on surface, and phytate molecule is be combined with each other with chitosan molecule by hydrogen bond, so that phytate molecule is combined
Medical stone molecular surface, wherein, phytic acid has extremely strong complexing power to number metal ion big absolutely, and specifically, phytic acid is to divalence
Metal ion can generate precipitation, and phytate molecule is used as intermediate carrier by chitosan molecule and is attached on medical stone molecule, carries
High absorption dynamics of the soil-repairing agent of the present invention to heavy metal in soil；
（3）, the present invention in add biomass material, be original organic fertilizer resource, be used for as one of raw material of soil-repairing agent
Soil, it is possible to increase the content of organic matter of soil, increases soil porosity, coordinates heat and humidity in soil, in addition, biological
Matter raw material is also created a favorable environment condition for the activity of composite bacteria liquid, and synergy is mutually promoted, adds the effect of organic fertilizer,
So that the soil-repairing agent of the present invention can also promote plant growth, improve soil fertility on the basis of rehabilitating soil；
（4）, the soil-repairing agent for preparing of the present invention be graininess, particle is round and smooth and hardness is big, to the seed non-hazardous of crops,
Base fertilizer can be made together with other fertilizer, can also be applied widely with seed with broadcasting.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1
A kind of efficient soil-repairing agent, includes the raw material of following part meter：
90 parts of attapulgite；
Modified 70 parts of medical stone；
55 parts of biomass material；
45 parts of composite bacteria liquid；
30 parts of organic fertilizer；
25 parts of carbonate；
15 parts of binding agent；
100 parts of water；
The organic fertilizer includes the raw material that following part is counted：10 parts of husk carbon, 2 parts of soybean cake, 2 parts of Carapax Eriocheir sinensis powder, 1 part of plant ash,
0.2 part of 1 part of manioc waste, 1 part of cow dung and leavening.
Wherein, the modified medical stone includes the raw material that following part is counted：25 parts of medical stone, 15 parts of chitosan, potassium peroxydisulfate 2
10 parts of part, 2 parts of phytic acid and deionized water.
Wherein, the preparation method of the modified medical stone is：By medical stone under the conditions of 400 DEG C high-temperature calcination 2h, take out
After be put into reaction vessel, add potassium peroxydisulfate, chitosan and deionized water, mix reaction 20min, then add phytic acid
Continue stirring reaction 10min and obtain mixed material, mixed material obtains being modified medical stone through dry and crushing.
Wherein, the biomass material is agricultural crop straw.
Wherein, the composite bacteria liquid is bacillus, Trichoderma, probiotics and saccharomycete mixture, and the carbonate is
Calcium carbonate.
Wherein, the binding agent is CMS.
Wherein, the leavening is saccharomyces cerevisiae.
A kind of preparation method of efficient soil-repairing agent is also provided in the present embodiment, comprised the following steps：
（1）, attapulgite purification processes：Attapulgite is ground into particle diameter 0.5mm particle, 1% hydrogen is then soaked in
3h is purified in sodium hydroxide solution, and filtration drying obtains the attapulgite powder after purification processes；
（2）, attapulgite modified processing：By step（2）It is molten for 10% ethanol that obtained attapulgite powder adds mass concentration
In liquid, 15min is stirred with rotating speed 200r/min, then by ultrasonically treated, higher suspension attapulgite ethanol is obtained after standing suspended
Liquid, filtering, it is 6 to be washed to pH value, refilters, is dried to obtain the attapulgite powder of modification, standby；
（3）, biomass material is put into pulverizer crushing, fibre length control is 5mm, and it is 5% to dry to moisture content, is given birth to
Raw material of substance powder, it is standby；
（4）, by step（2）The attapulgite powder and step of obtained modification（3）Obtained biomass material powder is mixed
Close, surplus stock is sequentially added according to proportioning, after being well mixed in feeding granulating disc, and coordinate the appropriate vapor of addition
Granulation, the efficient soil-repairing agent is obtained after the particle drying produced, cooling, screening.
Embodiment 2
A kind of efficient soil-repairing agent, includes the raw material of following part meter：
110 parts of attapulgite；
Modified 80 parts of medical stone；
65 parts of biomass material；
55 parts of composite bacteria liquid；
40 parts of organic fertilizer；
30 parts of carbonate；
25 parts of binding agent；
120 parts of water；
The organic fertilizer includes the raw material that following part is counted：25 parts of husk carbon, 10 parts of soybean cake, 8 parts of Carapax Eriocheir sinensis powder, 3 parts of plant ash,
1.2 parts of 2 parts of manioc waste, 2 parts of cow dung and leavening.
Wherein, the modified medical stone includes the raw material that following part is counted：35 parts of medical stone, 20 parts of chitosan, potassium peroxydisulfate
20 parts of 10 parts, 8 parts of phytic acid and deionized water.
Wherein, the preparation method of the modified medical stone is：By medical stone under the conditions of 500 DEG C high-temperature calcination 3h, take out
After be put into reaction vessel, add potassium peroxydisulfate, chitosan and deionized water, mix reaction 30min, then add phytic acid
Continue stirring reaction 20min and obtain mixed material, mixed material obtains being modified medical stone through dry and crushing.
Wherein, the biomass material is bamboo and wood discarded object.
Wherein, the composite bacteria liquid is bacillus, Trichoderma, probiotics and saccharomycete mixture, and the carbonate is
Magnesium carbonate.
Wherein, the binding agent is dextrin.
Wherein, the leavening is Trichoderma viride.
A kind of preparation method of efficient soil-repairing agent is also provided in the present embodiment, comprised the following steps：
（1）, attapulgite purification processes：Attapulgite is ground into particle diameter 2mm particle, 2% hydrogen-oxygen is then soaked in
Change 4h in sodium solution to be purified, filtration drying obtains the attapulgite powder after purification processes；
（2）, attapulgite modified processing：By step（2）It is molten for 15% ethanol that obtained attapulgite powder adds mass concentration
In liquid, 25min is stirred with rotating speed 300r/min, then by ultrasonically treated, higher suspension attapulgite ethanol is obtained after standing suspended
Liquid, filtering, it is 8 to be washed to pH value, refilters, is dried to obtain the attapulgite powder of modification, standby；
（3）, biomass material is put into pulverizer crushing, fibre length control is 10mm, and it is 8% to dry to moisture content, is given birth to
Raw material of substance powder, it is standby；
（4）, by step（2）The attapulgite powder and step of obtained modification（3）Obtained biomass material powder is mixed
Close, surplus stock is sequentially added according to proportioning, after being well mixed in feeding granulating disc, and coordinate the appropriate vapor of addition
Granulation, the efficient soil-repairing agent is obtained after the particle drying produced, cooling, screening.
Embodiment 3
A kind of efficient soil-repairing agent, includes the raw material of following part meter：
100 parts of attapulgite；
Modified 75 parts of medical stone；
60 parts of biomass material；
50 parts of composite bacteria liquid；
35 parts of organic fertilizer；
27 parts of carbonate；
20 parts of binding agent；
110 parts of water；
The organic fertilizer includes the raw material that following part is counted：18 parts of husk carbon, 6 parts of soybean cake, 5 parts of Carapax Eriocheir sinensis powder, 2 parts of plant ash,
0.8 part of 1.5 parts of manioc waste, 1.5 parts of cow dung and leavening.
Wherein, the modified medical stone includes the raw material that following part is counted：30 parts of medical stone, 17 parts of chitosan, potassium peroxydisulfate 6
15 parts of part, 5 parts of phytic acid and deionized water.
Wherein, the preparation method of the modified medical stone is：By medical stone under the conditions of 450 DEG C high-temperature calcination 2.5h, take
It is put into after going out in reaction vessel, adds potassium peroxydisulfate, chitosan and deionized water, mix reaction 25min, is then added and plant
Acid continues stirring reaction 15min and obtains mixed material, and mixed material obtains being modified medical stone through dry and crushing.
Wherein, the biomass material is agricultural crop straw.
Wherein, the composite bacteria liquid is bacillus, Trichoderma, probiotics and saccharomycete mixture, and the carbonate is
Calcium carbonate.
Wherein, the binding agent is diatomite.
Wherein, the leavening is saccharomyces cerevisiae.
The present embodiment also provides a kind of preparation method of efficient soil-repairing agent, comprises the following steps：
（1）, attapulgite purification processes：Attapulgite is ground into particle diameter 1mm particle, 1.5% hydrogen is then soaked in
3.5h is purified in sodium hydroxide solution, and filtration drying obtains the attapulgite powder after purification processes；
（2）, attapulgite modified processing：By step（2）Obtained attapulgite powder adds the ethanol that mass concentration is 12.5%
In solution, 20min is stirred with rotating speed 250r/min, then by ultrasonically treated, higher suspension attapulgite ethanol is obtained after standing and is hanged
Turbid liquid, filtering, it is 7 to be washed to pH value, refilters, is dried to obtain the attapulgite powder of modification, standby；
（3）, biomass material is put into pulverizer crushing, fibre length control is 8mm, and it is 6% to dry to moisture content, is given birth to
Raw material of substance powder, it is standby；
（4）, by step（2）The attapulgite powder and step of obtained modification（3）Obtained biomass material powder is mixed
Close, surplus stock is sequentially added according to proportioning, after being well mixed in feeding granulating disc, and coordinate the appropriate vapor of addition
Granulation, the efficient soil-repairing agent is obtained after the particle drying produced, cooling, screening.
The present invention is described in detail with reference to the foregoing embodiments, for a person skilled in the art, its according to
The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced
Change.Within the spirit and principles of the invention, any modifications, equivalent substitutions and improvements made etc., should be included in the present invention
Protection domain within.
Claims (9)
1. a kind of efficient soil-repairing agent, it is characterised in that the raw material counted including following part：90 ~ 110 parts of attapulgite, modification
70 ~ 80 parts of medical stone, 55 ~ 65 parts of biomass material, 45 ~ 55 parts of composite bacteria liquid, 30 ~ 40 parts of organic fertilizer, 25 ~ 30 parts of carbonate,
100 ~ 120 parts of 15 ~ 25 parts of binding agent and water；
The organic fertilizer includes the raw material that following part is counted：10 ~ 25 parts of husk carbon, 2 ~ 10 parts of soybean cake, 2 ~ 8 parts of Carapax Eriocheir sinensis powder, grass
0.2 ~ 1.2 part of 1 ~ 3 part of wood ash, 1 ~ 2 part of manioc waste, 1 ~ 2 part of cow dung and leavening.
2. efficient soil-repairing agent according to claim 1, it is characterised in that the raw material counted including following part：Concave convex rod
100 parts of soil, modified 75 parts of medical stone, 60 parts of biomass material, 50 parts of composite bacteria liquid, 35 parts of organic fertilizer, 27 parts of carbonate, bonding
110 parts of 20 parts of agent and water；
The organic fertilizer includes the raw material that following part is counted：18 parts of husk carbon, 6 parts of soybean cake, 5 parts of Carapax Eriocheir sinensis powder, 2 parts of plant ash,
0.8 part of 1.5 parts of manioc waste, 1.5 parts of cow dung and leavening.
3. efficient soil-repairing agent according to claim 1, it is characterised in that the modified medical stone is counted including following part
Raw material：10 ~ 20 parts of 25 ~ 35 parts of medical stone, 15 ~ 20 parts of chitosan, 2 ~ 10 parts of potassium peroxydisulfate, 2 ~ 8 parts of phytic acid and deionized water.
4. efficient soil-repairing agent according to claim 3, it is characterised in that the preparation method of the modified medical stone
For：Medical stone is put into reaction vessel under the conditions of 400 ~ 500 DEG C after 2 ~ 3h of high-temperature calcination, taking-up, potassium peroxydisulfate, shell is added
Glycan and deionized water, mix 20 ~ 30min of reaction, then add phytic acid continuation 10 ~ 20min of stirring reaction and are mixed
Material, mixed material obtains being modified medical stone through dry and crushing.
5. efficient soil-repairing agent according to claim 1, it is characterised in that the biomass material is agricultural crop straw
Or bamboo and wood discarded object.
6. efficient soil-repairing agent according to claim 1, it is characterised in that the composite bacteria liquid is bacillus, wood
Mould, probiotics and saccharomycete mixture, the carbonate are calcium carbonate or magnesium carbonate.
7. efficient soil-repairing agent according to claim 1, it is characterised in that the binding agent is CMS, paste
One or more in essence and diatomite.
8. efficient soil-repairing agent according to claim 1, it is characterised in that the leavening is saccharomyces cerevisiae or green
Color trichoderma.
9. a kind of preparation method of efficient soil-repairing agent according to any one of claim 1 ~ 8, it is characterised in that including
Following steps：
（1）, attapulgite purification processes：Attapulgite is ground into 0.5 ~ 2mm of particle diameter particle, 1 ~ 2% is then soaked in
Sodium hydroxide solution in 3 ~ 4h purified, filtration drying obtains the attapulgite powder after purification processes；
（2）, attapulgite modified processing：By step（2）Obtained attapulgite powder adds the second that mass concentration is 10 ~ 15%
In alcoholic solution, 15 ~ 25min is stirred with 200 ~ 300r/min of rotating speed, then by ultrasonically treated, higher suspension concave convex rod is obtained after standing
Native alcohol suspending liquid, filtering, it is 6 ~ 8 to be washed to pH value, refilters, is dried to obtain the attapulgite powder of modification, standby；
（3）, biomass material is put into pulverizer crushing, fibre length control is 5~10mm, and it is 5 ~ 8% to dry to moisture content,
Biomass material powder is obtained, it is standby；
（4）, by step（2）The attapulgite powder and step of obtained modification（3）Obtained biomass material powder is mixed
Close, surplus stock is sequentially added according to proportioning, after being well mixed in feeding granulating disc, and coordinate the appropriate vapor of addition
Granulation, the efficient soil-repairing agent is obtained after the particle drying produced, cooling, screening.
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| CN107384435A (en) * | 2017-09-07 | 2017-11-24 | 李满旺 | A kind of soil conditioner for heavy metal of degrading |
| CN108640743A (en) * | 2018-05-22 | 2018-10-12 | 广州草木蕃环境科技有限公司 | The passivation adjusting control agent and its preparation and application in repairing heavy metal pollution arable land |
| CN108641990A (en) * | 2018-06-29 | 2018-10-12 | 南京怡可帮生态环境科技有限公司 | A kind of arsenic in soil pollution amelioration microorganism formulation production method and application |
| CN108840748A (en) * | 2018-08-10 | 2018-11-20 | 天津大学前沿技术研究院有限公司 | Preparation method based on abandoned vinasse, the geobiont organic fertilizer of kitchen garbage |
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| CN110746239A (en) * | 2019-10-14 | 2020-02-04 | 四川东旭电力工程有限公司 | Mine soil restoration method and restoration material |
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| CN111330970A (en) * | 2020-03-18 | 2020-06-26 | 西南林业大学 | Method for reducing bioavailability of heavy metal composite contaminated soil in agricultural land |
| CN111454724A (en) * | 2020-04-16 | 2020-07-28 | 武汉市秀谷科技有限公司 | Mine soil reclamation restoration agent and preparation method thereof |
| CN112646585A (en) * | 2020-10-10 | 2021-04-13 | 江苏隆昌化工有限公司 | Arsenic-polluted soil remediation material and preparation method thereof |
| CN113087447A (en) * | 2021-04-08 | 2021-07-09 | 安徽新力电业科技咨询有限责任公司 | Restoration type ecological brick in power transmission and transformation line construction and preparation method thereof |
| WO2022100672A1 (en) * | 2020-11-12 | 2022-05-19 | 黄冬英 | Soil remediation agent and preparation thereof |
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