CN109400381A - A kind of formula improving soil - Google Patents
A kind of formula improving soil Download PDFInfo
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- CN109400381A CN109400381A CN201811514185.2A CN201811514185A CN109400381A CN 109400381 A CN109400381 A CN 109400381A CN 201811514185 A CN201811514185 A CN 201811514185A CN 109400381 A CN109400381 A CN 109400381A
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of formula for improving soil, the raw material including following parts by weight: dry 32~36 parts of organic matter, 14~18 parts of humic acid, 12~16 parts of biomass carbon, 8~10 parts of slag micropowder, 6~8 parts of medical stone powder, 2~4 parts of ammonium hydrogen carbonate, 4~8 parts of heavy metal treatment agent, 4~6 parts of soil granular promotor, 1~3 part of acid-base modifier.The object of the present invention is to provide a kind of formula for improving soil, which can provide organic matter abundant, while making soil granular and removing heavy metal in soil, practical value with higher and good application prospect.
Description
Technical field
The present invention relates to modifying agent technical fields, and in particular to a kind of formula for improving soil.
Background technique
Soil conditioner is mainly used for improveing physics, chemistry and the biological property of soil, it is made to be more suitable for plant growth,
Rather than the material of plant nutrient is mainly provided, it is valuable that referred to as soil conditioner, soil, which are the bases of crop planting,
Natural resources, can at present the hardening soil, pesticide residue is serious, soil-borne disease is rampant, soil property water holding capacity decline, poor air permeability,
Simultaneously with the fast development of today's society industry and mining, heavy metal pollution of soil is got worse, in nature mostly with compound
Form exists, as the mankind are to the exploitation of heavy metal, processing, make many heavy metals such as lead, chromium, mercury etc. enter atmosphere, water body or
In soil, serious heavy metal pollution is caused, heavy metal itself is difficult to degrade, cannot be by microorganism into the heavy metal in soil
Long-term accumulation in the soil is decomposed, some, which are acted on after being absorbed by crops eventually by food chain, enters human body, and there are certain
Ecological risk.
Though existing soil conditioner can provide organic matter abundant, the heavy metal effect removed in soil is poor, China
Patent document " (application number: CN201210277844.1) " discloses a kind of soil conditioner and preparation method thereof, soil improvement
Agent includes the following each component of weight proportion: 6-12 parts of gangue, organic matter 8-16 parts dry, soil conditioner preparation side
Method, including mixing, curing, drying and pulverize and sieve；Chinese patent literature " (application number: 201410331400.0) " public
A kind of soil conditioner and preparation method thereof is opened, the soil conditioner is by waste edible fungus bacteria stick, wood vinegar and microbial bacterial agent
Raw material composition, waste edible fungus bacteria stick, wood vinegar mass ratio be 1~3: 0.5~2.5, microbial bacterial agent accounts for total mass of raw material
0.1%~0.4%, solution of the soil conditioner to heavy metal content in soil still needs to further improve.
Summary of the invention
The purpose of the present invention is to provide a kind of formulas for improving soil, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of formula improving soil, the raw material including following parts by weight:
Dry organic matter 32-36 parts, 14-18 parts of humic acid, 12-16 parts of biomass carbon, 8-10 parts of slag micropowder, medical stone
6-8 parts of powder, 2-4 parts of ammonium hydrogen carbonate, 4-8 parts of heavy metal treatment agent, 4-6 parts of soil granular promotor, 1-3 parts of acid-base modifier.
Be as further scheme of the invention: the chemical formulation of the efficient soil conditioner includes following parts by weight
Raw material:
Dry 34 parts of organic matter, 16 parts of humic acid, 14 parts of biomass carbon, 9 parts of slag micropowder, 7 parts of medical stone powder, bicarbonate
3 parts of ammonium, 6 parts of heavy metal treatment agent, 5 parts of polyacrylate, 2 parts of acid-base modifier.
Be as further scheme of the invention: the dry organic matter be wheat stalk, rice straw, rape stalk,
The mixture formed according to weight ratio 1:2:3.
Be as further scheme of the invention: the biomass carbon preparation method is by animal wastes, sludge, corn stalk
Stalk, according to weight ratio 2:1:3 mix, completely cut off air, temperature be 1100-1200 DEG C under the conditions of carry out high temperature pyrolysis to get
Biomass carbon.
Be as further scheme of the invention: the acid-base modifier is sodium bicarbonate.
Be as further scheme of the invention: the soil granular promotor be bentonite, biogas residue, polypropylene amine according to
The mixture of weight ratio 3:2:1 composition.
Be as further scheme of the invention: the heavy metal treatment agent is modified zeolite, carbon nanometer, hemicellulose are received
Rice silica hydrogel, according to weight ratio (5-9): (4-6): the mixture of (1-3) composition.
Be as further scheme of the invention: the modified zeolite preparation method is that zeolite is added in ball mill, is ground
Being milled to partial size is 20-100 mesh, and the sodium hydroxide solution that mass fraction is 0.4-0.8% is added thereto, stirs 3-7min, with
The sodium alginate soln of 1-2% is added thereto again afterwards, continues to stir 4-8min to get modified zeolite.
Be as further scheme of the invention: the hemicellulose nanometer titanium dioxide silicone-hydrogel preparation method is will be partly
Cellulose is added in the ethanol solution that mass fraction is 98%, revolving speed 100-120r/min, and temperature is 45-55 DEG C, stirs 6-
Benzoyl peroxide is added in 10min thereto, and revolving speed rises to 160-180r/min, and temperature rises to 65-75 DEG C, is passed through nitrogen and adds
Entering N, N- methylene-bisacrylamide continues to stir 35-45min, then di-tert-butyl peroxide cumene is added thereto, after
Continuous stirring 1-2h is to get hemicellulose nanometer titanium dioxide silicone-hydrogel.
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) formula of a kind of improvement soil of the invention, to dry organic matter, humic acid, biomass carbon as main base
Material has obtained abundant guarantee for soil organic matter content, and biomass of the invention uses carbon animal wastes, sludge, corn stover,
It is mixed according to weight ratio 2:1:3, carries out high temperature pyrolysis under the conditions of completely cutting off air, temperature is 1100-1200 DEG C and be made, make this
Contain a large amount of nitrogen, phosphorus, potassium element and the content of organic matter in modifying agent, the slag micropowder of addition has specific area big, easily with
Soil contact, makes material preferably play a role, and medical stone powder, the rock phosphate powder of addition are extremely excellent natural mineral matter, solvable
The macroelement and microelement useful to human body and biology out, greatly increase the nutritive element content in soil, this
Outside, ammonium nitrogen needed for the ammonium hydrogen carbonate of addition can provide plant growth and carbon dioxide, and because the ammonium hydrogen carbonate of addition exists
Accounting is small in modifying agent of the present invention, while being easily decomposed, and certain fertilizer efficiency can be provided for plant primary growth, and plant is promoted to produce
Amount, the heavy metal treatment agent of addition can effectively absorb content of beary metal in soil, and the present invention is by changing modified zeolite, carbon
The mass ratio of nanometer, hemicellulose nano silica hydrogel materials removes heavy metal effect to reach best, original
The modified obtained modified zeolite of natural zeolite and hemicellulose nanometer titanium dioxide silicone-hydrogel compare existing zeolite, water-setting
It is stronger that the glue soil conditioner adsorbs heavy metal effect.
(2) formula of a kind of improvement soil of the invention, by probing into soil granular promotor to Influence To Soil, the present invention
The mixture that middle soil granular promotor is bentonite, biogas residue, polypropylene amine are formed according to weight ratio 3:2:1, soil granular are
Soil is created good porosity, and water holding, hole inside aggregate be more, little air, can both be saved into the water into aggregate
Dissolubility nutrient, and be suitable for that the activity of anaerobe can make nutrient accumulation conducive to the synthesis of humus, it additionally can be with
Make that the soil is porous, is easy to farming.
(3) zeolite is added in ball mill the formula of a kind of improvement soil of the invention, and being ground to partial size is 20-100
The sodium hydroxide solution that mass fraction is 0.4-0.8% is added thereto, stirs 3-7min, 1- is then added thereto again for mesh
2% sodium alginate soln continues to stir the modified zeolite that 4-8min is obtained, is easier to material compared to original zeolite and mutually melts
It closes, furthermore after the sodium alginate soln processing of sodium hydroxide solution, 1-2% that mass fraction is 0.4-0.8%, zeolite table
Face short texture, porosity increase, and zeolite suction-operated compared to the prior art is stronger, and absorption heavy metal ion effect is more
It is good.
(4) hemicellulose, nano silica are passed through a series of reaction by the formula of a kind of improvement soil of the invention
New hemicellulose nanometer titanium dioxide silicone-hydrogel is prepared, the effect of absorption heavy metal ion is stronger compared to existing technology, existing
Have in technology and heavy metal is adsorbed using hemicellulose, and the present invention is by being added benzoyl peroxide as initiator, the Asia N, N-
Bisacrylamide as coupling agent, add di-tert-butyl peroxide cumene, by nano silica and hemicellulose
Element combines, and nano silica large specific surface area combines the two, increases with soil active area, and material is made to adsorb heavy metal
Ionization is stronger.
(5) formula of a kind of improvement soil of the invention, the soil conditioner can not only provide N P and K abundant with
And organic matter, while a kind of soil improvement is disclosed than existing Chinese patent literature " (application number: CN201210277844.1) "
Agent and preparation method thereof, Chinese patent literature " (application number: 201410331400.0) " disclose a kind of soil conditioner and its
N P and K and the content of organic matter are high in preparation method, can additionally make soil granular and absorb the heavy metal in soil,
Improve compared to existing soil conditioner very big.
Specific embodiment
Combined with specific embodiments below, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1:
A kind of formula of the improvement soil of the present embodiment, the raw material including following parts by weight:
Dry 32 parts of organic matter, 14 parts of humic acid, 12 parts of biomass carbon, 8 parts of slag micropowder, 6 parts of medical stone powder, bicarbonate
2 parts of ammonium, 4 parts of heavy metal treatment agent, 4 parts of soil granular promotor, 1 part of acid-base modifier.
The drying organic matter of the present embodiment is wheat stalk, rice straw, rape stalk, is formed according to weight ratio 1:2:3
Mixture.
The biomass carbon preparation method of the present embodiment is by animal wastes, sludge, corn stover, according to weight ratio 2:1:3
Mixing carries out high temperature pyrolysis under the conditions of completely cutting off air, temperature is 1100 DEG C to get biomass carbon.
The acid-base modifier of the present embodiment is sodium bicarbonate.
The soil granular promotor of the present embodiment is bentonite, biogas residue, polypropylene amine are mixed according to what weight ratio 3:2:1 was formed
Close object.
The heavy metal treatment agent of the present embodiment is modified zeolite, carbon nanometer, hemicellulose nanometer titanium dioxide silicone-hydrogel, is pressed
According to the mixture of weight ratio 7:5:2 composition.
The modified zeolite preparation method of the present embodiment is that zeolite is added in ball mill, and being ground to partial size is 80 mesh, Xiang Qi
The middle sodium hydroxide solution that mass fraction is added and is 0.6%, stirs 5min, and 1.5% sodium alginate is then added thereto again
Solution continues to stir 6min to get modified zeolite.
The hemicellulose nanometer titanium dioxide silicone-hydrogel preparation method of the present embodiment is that mass fraction is added in hemicellulose
For in 98% ethanol solution, revolving speed 110r/min, temperature is 50 DEG C, 8min is stirred, benzoyl peroxide is added thereto,
Revolving speed rises to 170r/min, and temperature rises to 70 DEG C, is passed through nitrogen and N is added, and N- methylene-bisacrylamide continues to stir 40min,
Di-tert-butyl peroxide cumene is added thereto again, continues to stir 1.5h to get hemicellulose nano silica water-setting
Glue.
Embodiment 2:
A kind of formula of the improvement soil of the present embodiment, the raw material including following parts by weight:
Dry 36 parts of organic matter, 18 parts of humic acid, 16 parts of biomass carbon, 10 parts of slag micropowder, 8 parts of medical stone powder, carbonic acid
4 parts of hydrogen ammonium, 8 parts of heavy metal treatment agent, 6 parts of soil granular promotor, 3 parts of acid-base modifier.
Other conditions are same as Example 1.
Embodiment 3:
A kind of formula of the improvement soil of the present embodiment, the raw material including following parts by weight:
Dry 33.8 parts of organic matter, 15.5 parts of humic acid, 14 parts of biomass carbon, 8.9 parts of slag micropowder, medical stone powder 7.1
Part, 2.9 parts of ammonium hydrogen carbonate, 5.8 parts of heavy metal treatment agent, 4.9 parts of soil granular promotor, 2.1 parts of acid-base modifier.
Other conditions are same as Example 1.
Embodiment 4:
The heavy metal treatment agent of the present embodiment is modified zeolite, carbon nanometer, hemicellulose nanometer titanium dioxide silicone-hydrogel, is pressed
According to the mixture of weight ratio 5:4:1 composition.
Other conditions are same as Example 3.
Embodiment 5:
The heavy metal treatment agent of the present embodiment is modified zeolite, carbon nanometer, hemicellulose nanometer titanium dioxide silicone-hydrogel, is pressed
According to the mixture of weight ratio 3:2:1 composition.
1-3 of the embodiment of the present invention keeps other amounts constant, changes the weight of raw material in soil conditioner, show that drying is organic
33.8 parts of matter, 15.5 parts of humic acid, 14 parts of biomass carbon, 8.9 parts of slag micropowder, 7.1 parts of medical stone powder, 2.9 parts of ammonium hydrogen carbonate,
5.8 parts of heavy metal treatment agent, 4.9 parts of soil granular promotor, 2.1 parts of acid-base modifier, prepare soil conditioner performance most
It is good, it is further to optimize by ratio 1-4；By comparative example 5-6, change modified zeolite, carbon nanometer, hemicellulose nanometer two
Silica hydrogel mass ratio obtains optimal mass ratio, as a comparison case by existing open source literature, carries out soil conditioner
Energy test and comparison, modifying agent prepared by the present invention are substantially better than comparative example.
The heavy metal treatment agent of soil conditioner of the present invention is modified zeolite, carbon nanometer, hemicellulose nano silica
Hydrogel, according to weight ratio 7:5:2, soil granular promotor is bentonite, biogas residue, polypropylene amine according to weight ratio 3:2:1 group
At mixture, Chinese patent literature " (application number: CN201210277844.1) " discloses a kind of soil conditioner and its system
Preparation Method and Chinese patent literature " (application number: 201410331400.0) " disclose a kind of soil conditioner and its preparation side
Heavy metal treatment agent, soil granular promotor are not added in method.
Experimental example 1:
Essentially identical with the material and preparation process of embodiment 3, heavy metal treatment agent is modified zeolite, carbon nanometer, half fiber
Plain nanometer titanium dioxide silicone-hydrogel is tieed up, according to weight ratio 7:5:2, soil granular promotor is bentonite, biogas residue, polypropylene amine are pressed
According to the mixture of weight ratio 3:2:1 composition.
Experimental example 2:
Essentially identical with the material and preparation process of embodiment 3, heavy metal treatment agent is modified zeolite, hemicellulose nanometer
Silica hydrogel, according to weight ratio 7:2, soil granular promotor is bentonite, polypropylene amine according to weight ratio 3:1 composition
Mixture.
Experimental example 3:
Essentially identical with the material and preparation process of embodiment 3, heavy metal treatment agent is carbon nanometer, hemicellulose nanometer two
Silica hydrogel, according to weight ratio 5:2, soil granular promotor is biogas residue, polypropylene amine is mixed according to what weight ratio 2:1 was formed
Close object.
Experimental example 4:
Essentially identical with the material and preparation process of embodiment 3, heavy metal treatment agent is modified zeolite, carbon nanometer according to weight
Amount is than 7:5, the mixture that soil granular promotor is bentonite, biogas residue is formed according to weight ratio 3:2.
Experimental example 5:
Essentially identical with the material and preparation process of embodiment 3, heavy metal treatment agent is hemicellulose nano silica
2 parts of hydrogel, soil granular promotor is polypropylene amine according to 1 part of weight ratio.
Experimental example 6:
It is essentially identical with the material and preparation process of embodiment 3, Chinese patent literature " (application number:
CN201210277844.1 material and side described in specific embodiment 4 in a kind of soil conditioner and preparation method thereof) " are disclosed
The soil conditioner of method preparation.
Experimental example 7:
It is essentially identical with the material and preparation process of embodiment 3, using Chinese patent literature " (application number:
201410331400.0) material and method described in specific embodiment 3 in a kind of soil conditioner and preparation method thereof " are disclosed
The soil conditioner of preparation.
The present invention influences soil conditioner performance by probing into heavy metal treatment agent, the use of soil granular promotor
It is obtained by experimental example 1-7, heavy metal treatment agent, soil granular promotor are to soil porosity, soil moisture, again
Metal Cr content has a great impact, and experimental example 1 uses heavy metal treatment agent for modified zeolite, carbon nanometer, hemicellulose nanometer
Silica hydrogel, according to weight ratio 7:5:2, soil granular promotor is bentonite, biogas residue, polypropylene amine according to weight ratio
3:2:1 composition mixture, obtain soil conditioner performance be substantially better than Chinese patent literature " (application number:
CN201210277844.1) " disclose a kind of soil conditioner and preparation method thereof and Chinese patent literature " (application number:
201410331400.0) " disclose soil conditioner in a kind of soil conditioner and preparation method thereof.
The above only expresses the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not be because
This and be interpreted as limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, several deformations can also be made, improves and substitutes, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of formula for improving soil, which is characterized in that the raw material including following parts by weight:
Dry organic matter 32-36 parts, 14-18 parts of humic acid, 12-16 parts of biomass carbon, 8-10 parts of slag micropowder, medical stone powder 6-
8 parts, 2-4 parts of ammonium hydrogen carbonate, 4-8 parts of heavy metal treatment agent, 4-6 parts of soil granular promotor, 1-3 parts of acid-base modifier.
2. a kind of formula for improving soil according to claim 1, which is characterized in that the change of the efficient soil conditioner
Learn the raw material that formula includes following parts by weight:
Dry 34 parts of organic matter, 16 parts of humic acid, 14 parts of biomass carbon, 9 parts of slag micropowder, 7 parts of medical stone powder, ammonium hydrogen carbonate 3
Part, 6 parts of heavy metal treatment agent, 5 parts of polyacrylate, 2 parts of acid-base modifier.
3. a kind of formula for improving soil according to claim 1 or 2, which is characterized in that the dry organic matter is small
Wheat Straw, rice straw, rape stalk, the mixture formed according to weight ratio 1:2:3.
4. a kind of formula for improving soil according to claim 1 or 2, which is characterized in that the biomass carbon preparation side
Method is to mix animal wastes, sludge, corn stover according to weight ratio 2:1:3, is 1100-1200 DEG C in isolation air, temperature
Under the conditions of carry out high temperature pyrolysis to get biomass carbon.
5. a kind of formula for improving soil according to claim 1, which is characterized in that the acid-base modifier is bicarbonate
Sodium.
6. a kind of formula for improving soil according to claim 1, which is characterized in that the soil granular promotor is swollen
The mixture that profit soil, biogas residue, polypropylene amine are formed according to weight ratio 3:2:1.
7. a kind of formula for improving soil according to claim 1 or 2, which is characterized in that the heavy metal treatment agent is
Modified zeolite, carbon nanometer, hemicellulose nanometer titanium dioxide silicone-hydrogel, according to weight ratio (5-9): (4-6): (1-3) composition
Mixture.
8. a kind of formula for improving soil according to claim 7, which is characterized in that the modified zeolite preparation method is
Zeolite is added in ball mill, being ground to partial size is 20-100 mesh, and the hydroxide that mass fraction is 0.4-0.8% is added thereto
Sodium solution stirs 3-7min, and the sodium alginate soln of 1-2% is then added thereto again, continues to stir 4-8min to get modification
Zeolite.
9. a kind of formula for improving soil according to claim 7, which is characterized in that the hemicellulose nanometer titanium dioxide
Silicone-hydrogel preparation method is hemicellulose to be added in the ethanol solution that mass fraction is 98%, revolving speed 100-120r/
Min, temperature are 45-55 DEG C, stir 6-10min, benzoyl peroxide is added thereto, and revolving speed rises to 160-180r/min, temperature
Degree rises to 65-75 DEG C, is passed through nitrogen and N is added, N- methylene-bisacrylamide continues to stir 35-45min, then is added thereto
Di-tert-butyl peroxide cumene continues to stir 1-2h to get hemicellulose nanometer titanium dioxide silicone-hydrogel.
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| CN201811514185.2A CN109400381A (en) | 2018-12-11 | 2018-12-11 | A kind of formula improving soil |
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| CN201811514185.2A CN109400381A (en) | 2018-12-11 | 2018-12-11 | A kind of formula improving soil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790614A (en) * | 2019-12-04 | 2020-02-14 | 吉林大学 | Alkaline soil conditioner for phosphated residues and preparation method and application thereof |
| CN111234830A (en) * | 2019-12-20 | 2020-06-05 | 云南省微生物发酵工程研究中心有限公司 | Microbial modifier for improving soil aggregate structure and application thereof |
| WO2021184851A1 (en) * | 2020-03-18 | 2021-09-23 | 江苏福砳生物环保科技有限公司 | Soil remediation agent and preparation method therefor |
| CN113621384A (en) * | 2021-09-15 | 2021-11-09 | 湖南大学 | Tailing slag soil improvement matrix and preparation method and application thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
-
2018
- 2018-12-11 CN CN201811514185.2A patent/CN109400381A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790614A (en) * | 2019-12-04 | 2020-02-14 | 吉林大学 | Alkaline soil conditioner for phosphated residues and preparation method and application thereof |
| CN111234830A (en) * | 2019-12-20 | 2020-06-05 | 云南省微生物发酵工程研究中心有限公司 | Microbial modifier for improving soil aggregate structure and application thereof |
| WO2021184851A1 (en) * | 2020-03-18 | 2021-09-23 | 江苏福砳生物环保科技有限公司 | Soil remediation agent and preparation method therefor |
| CN113621384A (en) * | 2021-09-15 | 2021-11-09 | 湖南大学 | Tailing slag soil improvement matrix and preparation method and application thereof |
| CN113621384B (en) * | 2021-09-15 | 2022-08-12 | 湖南大学 | Tailing slag soil improvement matrix and preparation method and application thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
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Application publication date: 20190301 |