CN106675572A - Conditioner for mercury-polluted soil - Google Patents
Conditioner for mercury-polluted soil Download PDFInfo
- Publication number
- CN106675572A CN106675572A CN201611222846.5A CN201611222846A CN106675572A CN 106675572 A CN106675572 A CN 106675572A CN 201611222846 A CN201611222846 A CN 201611222846A CN 106675572 A CN106675572 A CN 106675572A
- Authority
- CN
- China
- Prior art keywords
- sunflower straw
- parts
- tobermorite
- ball
- sunflower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a conditioner for mercury-polluted soil. The conditioner is prepared from the following raw materials in parts by mass: 8 to 12 parts of hypnea boergesenii, 6 to 9 parts of asterocapsa trochiscioides, 24 to 32 parts of tobermorite and 12 to 20 parts of sunflower straw, wherein the mass ratio of the hypnea boergesenii to the cyanophyta is 4 to 3. A preparation method comprises the following steps of firstly, crushing the tobermorite into tobermorite micropowder; respectively drying the sunflower straw, the hypnea boergesenii and the asterocapsa trochiscioides, and crushing into powder; pouring the sunflower straw powder into water, soaking, heat-treating by ultrasonic waves, and filtering, so as to obtain sunflower straw extracting liquid and sunflower straw residues; performing vacuum concentration on the sunflower straw extracting liquid, so as to obtain sunflower straw concentrated liquid; calcining the sunflower straw residues, so as to obtain carbonized sunflower straw residues; uniformly mixing the sunflower straw concentration liquid, the tobermorite micropowder, the hypnea boergesenii powder and the asterocapsa trochiscioides powder, so as to obtain mixed slurry; soaking the carbonized sunflower straw residues into the mixed slurry, heating and embedding by ultrasonic waves, and drying, so as to obtain the conditioner. The conditioner has the advantage that the contents of available mercury and ferrimanganic oxidizing mercury in the soil can be remarkably reduced.
Description
Technical field
The present invention relates to technical field of soil remediation, specifically a kind of mercury contaminated soil modifying agent.
Background technology
Mercury is a kind of nonessential toxic heavy metal of human body, in being prevalent in environment.It is reported that, China is every year because of workers and peasants
Industry is produced discharges mercury in environment up to 1.9 × 105Ton so that large area arable land is subjected to mercury pollution, mercury is entered after soil, direct prestige
Side of body crop safety.According to continuous chemical extraction, the mercury in soil can be divided into solubilised state and exchangeable species, special suction
Attached state, Fe-Mn oxide, organically combine state and residual form.Crop is different to the absorbability of mercury species in soil, and one
As in the case of, solubilised state and exchangeable species and special ADSORPTION STATE validity it is high, be easily absorbed by plants, and Fe-Mn oxide and organic
There is likely effectiveness with reference to state, can be converted into available state in the case of soil environment condition changes and then be absorbed by plants, and
Residual form validity is minimum, and plant is relatively poor to its absorbability.
Mercury contaminated soil recovery technique mainly includes stable/immobilization technology, chemical passivation technology, vitrification, heat
Solution technology, nanometer recovery technique, Soil leaching technology, electric repairing technique, plant-securing technique, plant extract technology and plant
Volatilization technology etc..Wherein, chemical passivation recovery technique have the advantages that it is easy, quick, efficient, be repair large area it is heavy metal-polluted
The preferable selection of dye agricultural land soil；In-situ passivation technology is the material by adding environmental sound, adjusts and change heavy metal
Physicochemical property in soil, produces the series reactions such as precipitation, absorption, ion exchange and redox to reduce heavy metal
Biologically effective state content, so as to reduce its accumulation in crops.At present, chemical passivation technology has been widely used for
The heavy-metal contaminated soil reparation such as cadmium, lead and zinc, common passivating material has phosphoric acid salt, clay pit species and oxide-based etc..
However, when existing chemical passivation material is used to process mercury pollution, there is a problem of that treatment effeciency is not high.
The content of the invention
It is an object of the invention to provide a kind of high mercury contaminated soil modifying agent for the treatment of effeciency.
For achieving the above object, the present invention provides following technical scheme：
A kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：Mi Maosha dish 8-12 parts, ball
Strepaster ball algae 6-9 parts, tobermorite 24-32 parts, sunflower straw 12-20 part；Wherein, the matter of Mi Maosha dishes and ball strepaster ball algae
Amount is than being 4：3.
As further scheme of the invention：According to mass fraction meter, it is made up of following raw material：Mi Maosha dish 9-11 parts,
Ball strepaster ball algae 6.75-8.25 parts, tobermorite 27-28 parts, sunflower straw 15-17 part.
As further scheme of the invention：According to mass fraction meter, it is made up of following raw material：10 parts of Mi Maosha dishes, ball
7.5 parts of strepaster ball algae, 28 parts of tobermorite, 16 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 20-40 mesh, then Jing ultramicro grindings are to 8-10 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 80-120 mesh, obtain sunflower
Powder of straw, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) sunflower straw powder is poured in 5-6 times of its quality water measured and soaks 2-3h, be then heated to 67-70 DEG C,
Under the temperature conditionss, with power as 380-400W, ultrasonication 45-50min of the frequency as 36-38kHz, be filtrated to get to
Day certain herbaceous plants with big flowers stalk extract and sunflower straw slag, sunflower straw extract Jing is evaporated to relative density for 1.14-1.16
Sunflower straw concentrate, it is standby；
(4) sunflower straw slag is placed in into 460-475 DEG C of temperature lower calcination 80-90min, obtains carbonizing sunflower straw
Slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
Application of the described mercury contaminated soil modifying agent in terms of heavy-metal contaminated soil renovation agent is prepared.
Compared with prior art, the invention has the beneficial effects as follows：Modifying agent of the present invention can significantly reduce effective in soil
State mercury (solubilised state and exchangeable species and special ADSORPTION STATE mercury) and Fe-Mn oxide mercury content, wherein Fe-Mn oxide mercury content
Fall is big compared with available mercury, and organically combine state mercury and residual form mercury content are without significant changes；Modifying agent of the present invention is
Under Mi Maosha dishes, ball strepaster ball algae, tobermorite, the synergy of four kinds of components of sunflower straw, just with significantly reducing
The effect of soil available and potential available mercury content (Fe-Mn oxide), single sunflower straw or Mi Maosha dishes/
Ball strepaster ball algae, tobermorite, the combination of sunflower straw or Mi Maosha dishes, ball strepaster ball algae, the combination of sunflower straw
Then substantially without this effect.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：It is close
Husky 8 parts of the dish of hair, 6 parts of ball strepaster ball algae, 30 parts of tobermorite, 18 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 20 mesh, then Jing ultramicro grindings are to 8 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 80 mesh, obtain sunflower straw
Powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) 2h is soaked in the water of 5 times of amounts that sunflower straw powder is poured into its quality, 67 DEG C is then heated to, in the temperature
Under the conditions of degree, with power as 380W, ultrasonication 45min of the frequency as 36kHz, be filtrated to get sunflower straw extract and
Sunflower straw slag, sunflower straw extract Jing is evaporated to the sunflower straw concentrate that relative density is 1.14, standby
With；
(4) sunflower straw slag is placed in into 460 DEG C of temperature lower calcination 80min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
Embodiment 2
In the embodiment of the present invention, a kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：It is close
Husky 12 parts of the dish of hair, 9 parts of ball strepaster ball algae, 25 parts of tobermorite, 14 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 40 mesh, then Jing ultramicro grindings are to 10 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 120 mesh, obtain sunflower straw
Stalk powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) 3h is soaked in the water of 6 times of amounts that sunflower straw powder is poured into its quality, 70 DEG C is then heated to, in the temperature
Under the conditions of degree, with power as 400W, ultrasonication 50min of the frequency as 38kHz, be filtrated to get sunflower straw extract and
Sunflower straw slag, sunflower straw extract Jing is evaporated to the sunflower straw concentrate that relative density is 1.16, standby
With；
(4) sunflower straw slag is placed in into 475 DEG C of temperature lower calcination 90min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
Embodiment 3
In the embodiment of the present invention, a kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：It is close
Husky 9 parts of the dish of hair, 6.75 parts of ball strepaster ball algae, 28 parts of tobermorite, 17 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 20 mesh, then Jing ultramicro grindings are to 10 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 80 mesh, obtain sunflower straw
Powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) 2h is soaked in the water of 6 times of amounts that sunflower straw powder is poured into its quality, 70 DEG C is then heated to, in the temperature
Under the conditions of degree, with power as 380W, ultrasonication 45min of the frequency as 38kHz, be filtrated to get sunflower straw extract and
Sunflower straw slag, sunflower straw extract Jing is evaporated to the sunflower straw concentrate that relative density is 1.16, standby
With；
(4) sunflower straw slag is placed in into 460 DEG C of temperature lower calcination 90min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
Embodiment 4
In the embodiment of the present invention, a kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：It is close
Husky 11 parts of the dish of hair, 8.25 parts of ball strepaster ball algae, 27 parts of tobermorite, 15 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 40 mesh, then Jing ultramicro grindings are to 8 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 120 mesh, obtain sunflower straw
Stalk powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) 3h is soaked in the water of 5 times of amounts that sunflower straw powder is poured into its quality, 67 DEG C is then heated to, in the temperature
Under the conditions of degree, with power as 400W, ultrasonication 50min of the frequency as 36kHz, be filtrated to get sunflower straw extract and
Sunflower straw slag, sunflower straw extract Jing is evaporated to the sunflower straw concentrate that relative density is 1.14, standby
With；
(4) sunflower straw slag is placed in into 475 DEG C of temperature lower calcination 80min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
Embodiment 5
In the embodiment of the present invention, a kind of mercury contaminated soil modifying agent, according to mass fraction meter, is made up of following raw material：It is close
Husky 10 parts of the dish of hair, 7.5 parts of ball strepaster ball algae, 28 parts of tobermorite, 16 parts of sunflower straw.
The preparation method of described mercury contaminated soil modifying agent, comprises the following steps：
(1) first tobermorite is crushed to after 40 mesh, then Jing ultramicro grindings are to 10 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 120 mesh, obtain sunflower straw
Stalk powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) 2h is soaked in the water of 6 times of amounts that sunflower straw powder is poured into its quality, 68 DEG C is then heated to, in the temperature
Under the conditions of degree, with power as 390W, ultrasonication 48min of the frequency as 37kHz, be filtrated to get sunflower straw extract and
Sunflower straw slag, sunflower straw extract Jing is evaporated to the sunflower straw concentrate that relative density is 1.15, standby
With；
(4) sunflower straw slag is placed in into 472 DEG C of temperature lower calcination 86min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder,
Obtain mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the ultrasonic wave that temperature is 45 DEG C, power is 220W
Under the conditions of embed 1h, dry, obtain described mercury contaminated soil modifying agent.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity those skilled in the art should
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (5)
1. a kind of mercury contaminated soil modifying agent, it is characterised in that according to mass fraction meter, be made up of following raw material：Mi Maosha dishes
8-12 parts, ball strepaster ball algae 6-9 parts, tobermorite 24-32 parts, sunflower straw 12-20 part；Wherein, Mi Maosha dishes and ball line
The mass ratio of celestial body algae is 4：3.
2. mercury contaminated soil modifying agent according to claim 1, it is characterised in that according to mass fraction meter, by following original
Material composition：Mi Maosha dish 9-11 parts, ball strepaster ball algae 6.75-8.25 parts, tobermorite 27-28 parts, sunflower straw 15-17
Part.
3. mercury contaminated soil modifying agent according to claim 2, it is characterised in that according to mass fraction meter, by following original
Material composition：10 parts of Mi Maosha dishes, 7.5 parts of ball strepaster ball algae, 28 parts of tobermorite, 16 parts of sunflower straw.
4. according to the preparation method of the arbitrary described mercury contaminated soil modifying agent of claim 1-3, it is characterised in that including following
Step：
(1) first tobermorite is crushed to after 20-40 mesh, then Jing ultramicro grindings are to 8-10 μm, obtain tobermorite micro mist；
(2) respectively sunflower straw, Mi Maosha dishes, the drying of ball strepaster ball algae are crushed to into 80-120 mesh, obtain sunflower straw
Powder, Mi Maosha vegetable powders, ball strepaster ball algae powder；
(3) sunflower straw powder is poured in 5-6 times of its quality water measured and soaks 2-3h, 67-70 DEG C is then heated to, at this
Under temperature conditionss, with power as 380-400W, ultrasonication 45-50min of the frequency as 36-38kHz, sunflower is filtrated to get
Stalk extract and sunflower straw slag, sunflower straw extract Jing be evaporated to relative density for 1.14-1.16 to
Day certain herbaceous plants with big flowers stalk concentrate, it is standby；
(4) sunflower straw slag is placed in into 460-475 DEG C of temperature lower calcination 80-90min, obtains carbonizing sunflower straw slag；
(5) sunflower straw concentrate is well mixed with tobermorite micro mist, Mi Maosha vegetable powders, ball strepaster ball algae powder, is obtained
Mixture slurry；
(6) charing sunflower straw slag is immersed in mixture slurry, in the Ultrasonic Conditions that temperature is 45 DEG C, power is 220W
Lower embedding 1h, drying obtains described mercury contaminated soil modifying agent.
5. according to the arbitrary described mercury contaminated soil modifying agent of claim 1-3 in terms of heavy-metal contaminated soil renovation agent is prepared
Application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222846.5A CN106675572A (en) | 2016-12-27 | 2016-12-27 | Conditioner for mercury-polluted soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222846.5A CN106675572A (en) | 2016-12-27 | 2016-12-27 | Conditioner for mercury-polluted soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106675572A true CN106675572A (en) | 2017-05-17 |
Family
ID=58871499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611222846.5A Withdrawn CN106675572A (en) | 2016-12-27 | 2016-12-27 | Conditioner for mercury-polluted soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106675572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909705A (en) * | 2020-07-10 | 2020-11-10 | 广西夏阳环保科技有限公司 | Acidic heavy metal composite soil remediation agent and using method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559195A (en) * | 2011-12-26 | 2012-07-11 | 广东省生态环境与土壤研究所 | Soil heavy metal control conditioner and production method thereof |
-
2016
- 2016-12-27 CN CN201611222846.5A patent/CN106675572A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559195A (en) * | 2011-12-26 | 2012-07-11 | 广东省生态环境与土壤研究所 | Soil heavy metal control conditioner and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李剑睿等: "农田重金属污染原位钝化修复研究进展", 《生态环境学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909705A (en) * | 2020-07-10 | 2020-11-10 | 广西夏阳环保科技有限公司 | Acidic heavy metal composite soil remediation agent and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105802637B (en) | A kind of soil heavy metal passivant and preparation method and the passivating method to Cadmium in Soil | |
| CN107115840B (en) | Carbon-based composite material for repairing arsenic-cadmium contaminated soil and application thereof | |
| CN103894407B (en) | A kind of method of restoration of soil polluted by heavy metal | |
| CN105419805A (en) | Preparing method for complex function repairing agent for treatment of heavy metal contaminated soil | |
| CN103894395A (en) | Two-level remediation method of heavy metal contaminated soil | |
| CN108342195A (en) | A kind of acid soil heavy metal pollution ecological modifying agent and preparation method thereof | |
| CN105598155A (en) | Remediation method for soil polluted by arsenic | |
| CN103589435B (en) | For administering native regulatory agent of farmland soil heavy metals pollution and preparation method thereof | |
| CN104193539A (en) | Organic grape fertilizer with strong water-retaining and fertilizer-retaining capability and preparation method of organic grape fertilizer | |
| CN103894397A (en) | Method for carrying out three-level remediation on heavy metal contaminated soil | |
| CN101664756A (en) | Passivation material for in-situ restoration of soil polluted by heavy metal, and preparation and use method thereof | |
| CN103788958B (en) | Take active sludge as contaminated soil top layer repair materials of raw material and preparation method thereof | |
| CN106424104A (en) | Ecological remediation method for mining soil | |
| CN108580545A (en) | A method of cooperate with earthworm and Chinese pennisetum joint to repair and discard chromium slag place using biomass carbon | |
| CN103740372A (en) | Fixing agent for repairing arsenic-polluted soil, and preparation and application method thereof | |
| CN106607452A (en) | Conditioner for repairing medium-light acidic cadmium-contaminated soil, preparation method and application | |
| CN109456774A (en) | A kind of multiple-effect, environmentally-friendly silicon substrate soil heavy metal passivant and the preparation method and application thereof | |
| CN104108765B (en) | A kind of restorative procedure of heavy metal contamination farmland | |
| CN108359475A (en) | A kind of humic-acid kind heavy metal-polluted soil renovation agent and its preparation method and application | |
| CN105414161A (en) | Remediation method for soil in petroleum-polluted saline and alkali land | |
| CN105174278A (en) | Preparation method for modified attapulgite, and method for preparing soil conditioner with attapulgite as main raw material | |
| CN105062492A (en) | Chemical stabilizer suitable for soil remediation of arsenic polluted site and use method of chemical stabilizer | |
| CN104531158A (en) | Curing agent and curing method thereof | |
| CN104001715B (en) | A kind of method of in-situ solidifying-remove heavy metal-polluted soil | |
| CN106675572A (en) | Conditioner for mercury-polluted soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170517 |
|
| WW01 | Invention patent application withdrawn after publication |