CN108774531A - A kind of renovation agent and preparation method thereof for administering alkaline cadmium pollution soil - Google Patents
A kind of renovation agent and preparation method thereof for administering alkaline cadmium pollution soil Download PDFInfo
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- CN108774531A CN108774531A CN201810462584.2A CN201810462584A CN108774531A CN 108774531 A CN108774531 A CN 108774531A CN 201810462584 A CN201810462584 A CN 201810462584A CN 108774531 A CN108774531 A CN 108774531A
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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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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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
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Abstract
The present invention relates to agricultural environment child care and recovery technique field, and in particular to a kind of renovation agent and preparation method thereof for administering alkaline cadmium pollution soil.It weighs blast furnace slag, sepiolite, bentonite, desulfurated plaster after mixing in proportion, adds fulvic acid, mix, so that it may obtain.The preparation method raw material of the present invention is easy to get, is easy to operate, and the manufacturing cost of renovation agent is can be controlled within 800 yuan/ton, per acre dosage 100-300 kg, and mu repairs reagent cost only 80-240 members, can be used completely with large-scale promotion.The present invention uses multidimensional Principles, the activity of cadmium in soil can be not only reduced by precipitation, suction-operated, complexing, but also can pass through the deposition and-SH in endodermis（Sulfydryl）Formation inhibit cadmium in crops to shift upwards, work along both lines, to which cadmium content effectively reduces in powerful guarantee agricultural product.
Description
Technical field
The present invention relates to agricultural environment child care and recovery technique field, and in particular to one kind is for administering alkaline cadmium pollution soil
Renovation agent of earth and preparation method thereof.
Background technology
In the chemical harnessing technology of heavy metal pollution of soil, heavy metal in soil is passivated by application soil-repairing agent
In-situ chemical passivation recovery technique it is easy, effect is good, economical and practical with it the advantages that and by most attention, be particularly suitable for
It repairs in large area, the agricultural land soil of slight pollution.Currently, for the renovation agent of acidic cadmium polluted soil, have numerous studies,
And have and come out compared with multi-product, raw materials are with basic matterial, phosphorated material, clay mineral, iron and manganese oxides and organic matter
Based on material.But the renovation agent research for alkaline cadmium pollution soil lacks very much, relevant renovation agent product is also very few.
Chinese patent application (application number：201510289461.X) disclose a kind of in-situ passivation tune of basic soil heavy metal cadmium
Manage agent and preparation method, renovation agent is by following weight percent at being grouped as：Lime 17%~25%, bovine bone powder 8%~
13%, animal blood meal 9%~14%, wormcast 13%~17%, ferment bacterium organic fertilizer 8%~13%, Si, Ca, Mg, K fertilizer 9%~
14%, diatomite 12%~18% and activated carbon 7%~11%, are sufficiently stirred mixing and form.Chinese invention patent (application number
201410054631.1) a kind of heavy metal cadmium, lead, arsenic combined contamination soil renovation agent and preparation method thereof are disclosed, by neutrality
The calcium oxide of soil weight 0.3~2.0%, two calcium sulfate of hydration, the neutral soil weight of neutral soil weight 0.3~2.5%
The charcoal composition of amount 0.3~1.34%.Scientific paper《Alkaline Cd polluted agricultural lands stabilize repairing research in situ》Report alkalinity
The repairing effect of Cd polluted agricultural land applications calcium magnesium phosphate, siliceous fertilizer, lime, charcoal etc., filters out using coconut husk charcoal as core
The stabilizer coconut husks charcoal of material reaches 99.08% to soil available cadmium deactivation rate.
But these products still have the problem of following 4 aspects：
One, raw material is constituted complicated, unstable, by products material form as many as 8 kinds, and part material source shakiness
It is fixed, it is not easy to promote the use of.Two, with high costs, some products use charcoal as primary raw material, and mu amount of application is up to 1 ton
More than, mu rehabilitation cost is converted at ten thousand yuan or more, loses the value being widely applied.Three, soil-agricultural product are not accounted for
Repairing effect is coupled, nearly all only considers its passivation for cadmium in agricultural land soil in the prior art, there is no consider to repair
The influence that cadmium in crop plant is shifted in multiple agent, cannot thus be properly arrived at the mesh that heavy metal pollution achilles tendon tear utilizes
Mark.Four, the salinization of soil may be aggravated while cadmium pollution soil repair, used in some existing product formulas compared with
The quick lime of large scale causes pH to can reach 10-12, and the most of soil in the north is in just a degree of salinization of soil originally, is applied
The salinization of soil can be aggravated by entering the stronger renovation agent of alkalinity, be unfavorable for the growth of crops.
Invention content
For the deficiencies in the prior art, the purpose of the present invention is to provide one kind can both reducing cadmium in basic soil
Activity, and inexpensive, the efficient renovation agent and preparation method thereof that cadmium can be hindered to be migrated in crop plant.
The present invention realizes above-mentioned purpose by following technical proposals：
A kind of renovation agent for administering alkaline cadmium pollution soil, it is made of five kinds of following raw materials of weight percent：
Preferably, the renovation agent is made of five kinds of following raw materials of weight percent：
The blast furnace slag is the powder after steel plant's Water Quenching Slag is levigate, and grain size 0.075-0.150mm, effective silicon is (with SiO2
Meter) content >=25%, effective calcium (in terms of CaO) content >=35%.
The sepiolite is the powder after sepiolite raw ore is levigate, purity >=20%, grain size≤0.045mm.
The bentonite is calcium-base bentonite powder, grain size≤0.045mm.
The desulfurated plaster is desulfurated plaster powder, purity >=80%, grain size≤0.150mm.
The fulvic acid is biochemical fulvic acid powder, purity >=90%, grain size≤0.150mm.
Content of beary metal in the blast furnace slag, sepiolite, bentonite, desulfurated plaster and fulvic acid is satisfied by following want
It asks：Mercury content≤2mg/kg, arsenic content≤10mg/kg, cadmium content≤3mg/kg, lead content≤50mg/kg and chromium content≤
50mg/kg。
Preparation-obtained renovation agent is powdered, and effective silicon is (with SiO2Meter) content >=9%, effective calcium is (with CaO
Meter) content >=15%, pH 6.5-8.5, total sulfur content >=1.5%, the content of organic matter >=1.5%, moisture≤5%, mercury content
≤ 2mg/kg, arsenic content≤10mg/kg, cadmium content≤3mg/kg, lead content≤50mg/kg, chromium content≤50mg/kg.
A kind of above-mentioned preparation method for administering the renovation agent of alkaline cadmium pollution soil comprising following steps：
(1) premix is prepared：Blast furnace slag, sepiolite, bentonite, desulfurated plaster are uniformly mixed, premix is obtained；
(2) finished product mixture：Fulvic acid is added in premix, stirs evenly to get to for administering alkaline cadmium pollution soil
The renovation agent of earth.
Compared with prior art, the advantages of the present invention are：
(1) raw material sources are wide：Raw material used in the present invention is common common raw material, is derived from a wealth of sources, quantity is secure.
Wherein blast furnace slag is the waste residue of steel plant, almost each province Dou You steel plant of China；Sepiolite is distributed widely in Hunan, river
There is the reserve of thousands of 10,000 tons on the ground such as south, Hebei, Jiangxi；Bentonite be distributed widely in Xinjiang, Guangxi, Inner Mongol Jiangsu, Sichuan,
The provinces such as Hebei, Hubei, 8,000,000,000 tons of China's proved reserves or more, enormous amount；Desulfurated plaster is the pair of flue gas desulphurization
Product, China generate 70,000,000 tons or more every year；Biochemical fulvic acid is extracted from the plant waste after microbial fermentation, is obtained
It takes conveniently.
(2) product quality controllability is strong：All raw material heavy metals that the present invention uses can be relatively easy to control, and ensure
Renovation agent does not have secondary pollution risk in use.Blast furnace slag, desulfurated plaster, fulvic acid content of beary metal compared with
It is low, it can be safe to use；The region quality stability of sepiolite and zeolite is stronger, can filter out a huge sum of money according to sample detecting early period
Belong to the low raw material sources of content.
(3) rehabilitation cost is cheap：Blast furnace slag, desulfurated plaster are that changing waste into resources utilizes in the raw material that the present invention uses, former
Material is easy to get；The preparation of renovation agent product only needs to mix thoroughly in proportion, easy to operate.The manufacturing cost of renovation agent of the present invention is can be controlled in
Within 800 yuan/ton, dosage 100-300kg, repairs reagent cost only 80-240 members per acre per acre, completely can be with large-scale promotion
It uses.
(4) cadmium pollution soil safe utilization effect is more preferable：《Soil Pollution Control action plan》(promulgated by the State Council (2016) 31)
The safe utilization in contaminated arable land has been highlighted, and has pointed out the year two thousand twenty, contaminated achilles tendon tear utilization rate reaches 90% left side
The right side, pollution plot safe utilization rate reach 90% or more；To the year two thousand thirty, contaminated achilles tendon tear utilization rate reaches 95% or more.
So-called achilles tendon tear utilizes the agricultural product that qualification can be exactly produced on contaminated arable land.A huge sum of money in agricultural product
The both sides such as transfer distribution of the content of category by heavy metal in soil activity and heavy metal in crops body are influenced.And it is existing
Renovation agent in technology is only almost that cadmium activity designs in passivation soil, has ignored transfer of the cadmium in crop plant to agricultural production
The influence of Cd accumulation in product, this can make the safe utilization effect in contaminated arable land have a greatly reduced quality.The present invention is repaired former using multidimensional
Reason not only can reduce the activity of cadmium in soil by precipitation, suction-operated, complexing, but also can pass through the shape of silicified cell
Inhibit cadmium in crops to shift upwards at the formation with-SH (sulfydryl), work along both lines, to which cadmium contains in powerful guarantee agricultural product
Amount effectively reduces.Wherein there is a large amount of solubility in citric acid silicate in blast furnace slag, the silicate of indissoluble can be formed with cadmium reaction in soil
Precipitation；Sepiolite, bentonite have huge specific surface area and abundant microcellular structure, can effectively adsorb the cadmium in soil, drop
Its low validity；Fulvic acid is rich in a variety of functional groups, and relatively stable complex compound can be formed with cadmium in soil, improves organic Cd
Ratio；After Si elements in blast furnace slag are absorbed by crops, is deposited in endodermis, blocks the apoplast bypass flow of root,
The apoplast transportational process for limiting Cd, to inhibit cadmium to be shifted from root to overground part；There is abundant activity in desulfurated plaster
Sulphur can promote the generation of sulfydryl after being absorbed by crops, sulfydryl, which has, to be removed free radical, prevents plant oxidation from damaging, while energy
The effect of heavy metal damage plasma membrane and cell is combined, avoided with heavy metal.
(5) salinization of soil can be mitigated：The quick lime that larger proportion has been used in the product formula of the prior art, leads to pH
10-12 is can reach, and the most of soil in the north is in just a degree of salinization of soil originally, applying the stronger renovation agent of alkalinity can add
Heavy soil salinization of soil is unfavorable for the growth of crops.The raw material that the present invention uses is neutral or alkalescent, and with a small amount of Huang
The overall pH of renovation agent can be controlled between 6-8, soil will not be further increased while restoring cadmium polluted by rotten acid for adjusting pH
Earth pH, and using the Ca contained in desulfurated plaster2+To the Na adsorbed in soil colloid+(the Na in soil2CO3、
NaHCO3) into line replacement, and by elution discharge it the soil body, with achieve the purpose that mitigate the salinization of soil.This is because native
Earth colloidal particle for a long time with the Na in saline-alkali soil2CO3、NaHCO3, the contacts such as NaCl, become containing Na+Colloidal particle, and contain Na+Glue
Body particle has preferable dispersibility in the soil, can be dispersed in the fine crack between soil particle, forms fine and close, fluid-tight plate
Soil layer is tied, plant growth is seriously hindered.It is not easy permeable to contain Na+More Ca is being added in hardening layer2+Afterwards, due to Ca2+Compare Na+It is right
The adsorption capacity of colloidal particle is strong in soil, the Na that original has been adsorbed+It can be with the Ca in the soil liquid2+Ion exchange occurs, and contains
Ca2+The outer layer of colloidal particles not adsorbed water molecule, colloidal particles oneself can be adjacent to each other and agglomerate, soil would not be hardened, this
After a little processes are repeated, soil just forms crumb structure, to be conducive to crop root system growth, absorb soil moisture and
Nutrient, to also just alleviate salinization of soil harm.
Specific implementation mode
Below in conjunction with specific embodiment, technical scheme of the present invention will be described in further detail, but is not to this hair
The limitation of range is claimed in bright claims, all to be replaced according to being equal for any this field made by the disclosure of invention
It changes, all belongs to the scope of protection of the present invention.
In following example 1-7, blast furnace slag is the powder after steel plant's Water Quenching Slag is levigate, and grain size 0.075-0.150mm has
Silicon is imitated (with SiO2Meter) content >=25%, effective calcium (in terms of CaO) content >=35%, the raw material is by the trade of Hunan Province Taojiang County
Co., Ltd provides.
In following example 1-7, powder of the sepiolite for sepiolite raw ore after levigate, purity >=20%, grain size≤
0.045mm, the raw material are provided by mineral products company of xiangtan, hunan province county.
In following example 1-7, bentonite is calcium-base bentonite powder, and grain size≤0.045mm, the raw material is by Hunan Province Hunan
Tan Xian mineral products company provides.
In following example 1-7, desulfurated plaster is desulfurated plaster powder, purity >=80%, grain size≤0.150mm, the original
Material is provided by million building materials company of city of Changsha.
In following example 1-7, fulvic acid is biochemical fulvic acid powder, purity >=90%, grain size≤0.150mm, the original
Material is provided by Qingdao of Shandong province chemical science and technology company.
The content of beary metal of all raw materials is satisfied by claimed below：Mercury content≤2mg/kg, arsenic content≤10mg/kg, cadmium
Content≤3mg/kg, lead content≤50mg/kg and chromium content≤50mg/kg.
Embodiment 1：A kind of renovation agent for administering alkaline cadmium pollution soil, it is by 5 kinds of following originals of weight percent
Material is made：
A kind of renovation agent for administering alkaline cadmium pollution soil, preparation method are：
(1) premix is prepared：In proportion by 4 kinds of blast furnace slag, sepiolite, bentonite and desulfurated plaster raw materials via extractor
It is sent into powder stirrer, stirs 15 minutes, obtains premix；
(2) finished product mixture：Fulvic acid is proportionally added into premix, stirring is used to administer for 5 minutes to get to finished product-
The renovation agent of alkaline cadmium pollution soil.
Embodiment 2- embodiments 7：A kind of renovation agent for administering alkaline cadmium pollution soil, it is as follows by weight percent
5 kinds of raw materials be made, the raw material of each example composition and content such as following table：
| Embodiment | 2 | 3 | 4 | 5 | 6 | 7 |
| Blast furnace slag | 30% | 50% | 40% | 40% | 40% | 45% |
| Sepiolite | 30% | 20% | 20% | 30% | 25% | 20% |
| Bentonite | 20% | 10% | 20% | 15% | 17% | 20% |
| Desulfurated plaster | 18% | 12% | 15% | 10% | 13% | 10% |
| Fulvic acid | 2% | 8% | 5% | 5% | 5% | 5% |
Its preparation process is same as Example 1.
The comprehensive technical indexes of the obtained powdery renovation agents of embodiment 1-7 are detected, the results are shown in Table 1.
The comprehensive technical indexes of renovation agent made from 1 embodiment 1-7 of table
Note：Effective silicon is with SiO2Meter, effective calcium is in terms of CaO.PH is measured by NY/T 1973-2010 methods.
Embodiment 8：Repair pilot scale (maize planting) in Baiyin City, gansu Province cadmium pollution arable land
In September, -2017, carried out renovation agent in the Baiyin City, gansu Province Baiyin District towns the king Xian villages Luo Jiatan and applied in May, 2017
Use field trial.Test full cadmium 65.2mg/kg, available Cd 19.6mg/kg, pH in soil：8.23 (the test methods of soil pH
For NY/T 1121.2-2006, similarly hereinafter).Maize planting kind is Jinsui 1.
A. test process
Field experiment each handles 3 repetitions, every piece of 2 mu of area of field, experimental plot surrounding setting 2.5 if 2 processing
The wide protection row of rice.
Processing 1：Blank (CK), conventional fertilizer application do not apply any conditioner；
Processing 2：Renovation agent 200kg/ mus of base made from conventional fertilizer application+embodiment 1 is applied.
B. method of administration
It on the basis of conventional fertilizer application, turns over and uniformly spreads fertilizer over the fields renovation agent within first 6 days in field face, rake is even, pours enough water stabilization
Curing.
C. detection project
Corn yield, soil pH value, soil available cadmium, corn kernel cadmium.
D. main result
Influence of the different disposal to cadmium content in corn kernel is shown in Table 2.Test result shows to handle 1 (CK) corn kernel
Middle cadmium content is 5.32mg/kg, is more than《National food safety standard pollutants in food is limited the quantity》Rule in (GB 2762-2017)
52.2 times fixed of limit value (0.1mg/kg)；Handling cadmium content relatively 1 (CK) of processing in 2 corn kernels reduces by 50.94%, is down to
2.61mg/kg.This experimental field due in soil cadmium content it is very high, cause plantation corn kernel in cadmium content it is also higher, but
It is very big to the content range of decrease of cadmium in corn kernel using the renovation agent of embodiment 1, illustrate to show using the renovation agent of embodiment 1
Writing reduces cadmium content in corn kernel.
Influence of the different disposal to soil pH value is shown in Table 3.As known from Table 3, it compared with handling 1 (CK), handles under 2 soil pHs
0.15 unit, fall 1.82% drop.This explanation, has no significant effect soil pH using the renovation agent of embodiment 1.
Influence of the different disposal to effective cadmium content of soil is shown in Table 4.Test result shows to handle the soil of 1 (CK)
Available Cd content is 18.8mg/kg, and available Cd content relatively 1 (CK) of processing for handling 2 soil reduces by 20.74%.This explanation,
Soil available Cd content can be effectively reduced using the renovation agent of embodiment 1.
Influence of the different disposal to corn yield is shown in Table 5.Test result shows that the yield for handling 2 is 342.6kg/ mus, than
It handles 1 (CK) and increases production 36.9kg/ mus, rate of growth 12.07%.This explanation, can be effectively increased using the renovation agent of embodiment 1
Corn yield.
Influence of 2 different disposal of table to corn kernel cadmium content
Note：This experimental field due in soil cadmium content it is very high, cause plantation corn kernel in cadmium content it is also higher.
Influence of 3 different disposal of table to corn planting soil pH value
Influence of 4 different disposal of table to corn planting soil available Cd content
Influence of 5 different disposal of table to corn yield
Embodiment 9：Repair pilot scale (plantation wheat) in Hebei province Anxin County cadmium pollution arable land
Renovation agent is carried out in Hebei province Anxin County and has applied field trial in June, -2017 in October, 2016.Test soil
Full cadmium 2.78mg/kg, available Cd 1.09mg/kg, pH：8.23, the wheat breed of plantation is middle wheat 155.
A. test process
Field experiment, experiment set 2 processing, each handle 3 repetitions, every piece of 2 mu of area of field, the setting of experimental plot surrounding
2.5 meters wide of protection row.
Processing 1：Blank (CK), conventional fertilizer application do not apply any conditioner；
Processing 2：Renovation agent 200kg/ mus of base made from conventional fertilizer application+embodiment 2 is applied.
B. method of administration
It on the basis of conventional fertilizer application, turns over and uniformly spreads fertilizer over the fields renovation agent within first 6 days in field face, rake is even, pours enough water stabilization
Curing.
C. detection project
Wheat yield, soil pH value, soil available cadmium, wheat seed cadmium content.
D. main result
Influence of the different disposal to cadmium content in wheat seed is shown in Table 6.Test result shows to handle 1 (CK) wheat seed
Cadmium content is 0.21mg/kg, is more than《National food safety standard pollutants in food is limited the quantity》(GB2762-2017) specified in
Limit value (0.1mg/kg)；Handling 2 wheat seed cadmium contents relatively 1 (CK) of processing reduces by 60.90%, is down to 0.08mg/kg, is less than
《National food safety standard pollutants in food is limited the quantity》Limit value (0.1mg/kg) specified in (GB 2762-2017).This table
It is bright, it can significantly reduce cadmium content in wheat seed using the renovation agent of embodiment 2.
Influence of the different disposal to soil pH value is shown in Table 7.As known from Table 7, it compared with handling 1 (CK), handles under 2 soil pHs
0.13 unit, fall 1.57% drop.This explanation has no significant effect soil pH using for examination renovation agent.
Influence of the different disposal to effective cadmium content of soil is shown in Table 8.Test result shows compared with handling 1 (CK), locates
Managing the available Cd content of 2 soil reduces by 19.81%.This explanation, it is effective can effectively to reduce soil using the renovation agent of embodiment 2
State cadmium content.
Influence of the different disposal to wheat yield is shown in Table 9.Test result shows that the yield for handling 2 is 469.6kg/ mus, than
It handles 1 (CK) and increases production 43.8kg/ mus, rate of growth 10.28%.This explanation, can be effectively increased using the renovation agent of embodiment 2
Wheat yield.
Influence of 6 different disposal of table to wheat seed cadmium content
Influence of 7 different disposal of table to wheat planting soil pH value
Influence of 8 different disposal of table to wheat planting soil available Cd content
Influence of 9 different disposal of table to wheat yield
Claims (9)
1. a kind of for administering the renovation agent of alkaline cadmium pollution soil, which is characterized in that it is by following five kinds of weight percent
Raw material is made：
Raw material weight percentage（%）
Blast furnace slag 30-50；
Sepiolite 20-30；
Bentonite 10-20；
Desulfurated plaster 10-20；
Fulvic acid 2-8.
2. the renovation agent according to claim 1 for administering alkaline cadmium pollution soil, which is characterized in that it is by weight hundred
Divide and is made than five kinds of following raw materials：
Raw material weight percentage（%）
Blast furnace slag 50；
Sepiolite 20；
Bentonite 10；
Desulfurated plaster 12；
Fulvic acid 8.
3. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：The height
Clinker is the powder after steel plant's Water Quenching Slag is levigate, grain size 0.075-0.150mm, available silicon content >=25%, the active calcium ion content
≥35%。
4. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：The sea
Afrodite is the powder after sepiolite raw ore is levigate, purity >=20%, grain size≤0.045mm.
5. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：It is described swollen
Profit soil is calcium-base bentonite powder, grain size≤0.045mm.
6. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：It is described de-
Sulphur gypsum is desulfurated plaster powder, purity >=80%, grain size≤0.150mm.
7. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：The Huang
Rotten acid is biochemical fulvic acid powder, purity >=90%, grain size≤0.150mm.
8. the renovation agent according to claim 1 or 2 for administering alkaline cadmium pollution soil, it is characterised in that：The height
Content of beary metal is satisfied by claimed below in clinker, sepiolite, bentonite, desulfurated plaster and fulvic acid：The mg/ of mercury content≤2
The mg/kg of the mg/kg of the mg/kg of the mg/kg of kg, arsenic content≤10, cadmium content≤3, lead content≤50 and chromium content≤50.
9. a kind of preparation method according to any one of claims 1-8 for administering the renovation agent of alkaline cadmium pollution soil,
Steps are as follows：
（1）Prepare premix：Blast furnace slag, sepiolite, bentonite, desulfurated plaster are uniformly mixed, premix is obtained；
（2）Finished product mixture：Fulvic acid is added in premix, stirs evenly to get to for administering alkaline cadmium pollution soil
Renovation agent.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772868A (en) * | 2019-03-07 | 2019-05-21 | 新昌县以琳环保科技有限公司 | The ecological environment of soil restorative procedure for preventing and treating heavy metal pollution |
| CN110016350A (en) * | 2019-04-29 | 2019-07-16 | 深圳润康生态环境股份有限公司 | Arable land heavy-metal contaminated soil preparation for repairing and preparation method thereof |
| CN112538355A (en) * | 2020-12-07 | 2021-03-23 | 安徽龙码数据科技有限公司 | Long-acting soil remediation agent and preparation method thereof |
| CN113248333A (en) * | 2021-05-31 | 2021-08-13 | 河南中米生态科技有限公司 | Granular soil conditioner for composite heavy metal pollution and preparation method thereof |
| CN113481014A (en) * | 2021-07-15 | 2021-10-08 | 中国科学院沈阳应用生态研究所 | Preparation and application methods of cadmium-polluted soil solid waste base passivator |
| CN114015451A (en) * | 2021-11-01 | 2022-02-08 | 宁波慈溪生物医学工程研究所 | Alkalescent soil cadmium passivator and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272286A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Grouting material for soil improvement and insolubilization method of soil contaminant using the same |
| CN102174325A (en) * | 2011-03-11 | 2011-09-07 | 中国科学院亚热带农业生态研究所 | Composite passivant for soil polluted by heavy metal and preparation method |
| CN107384424A (en) * | 2017-08-07 | 2017-11-24 | 韦孺聪 | A kind of alkaline soil improver |
-
2018
- 2018-05-15 CN CN201810462584.2A patent/CN108774531A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272286A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Grouting material for soil improvement and insolubilization method of soil contaminant using the same |
| CN102174325A (en) * | 2011-03-11 | 2011-09-07 | 中国科学院亚热带农业生态研究所 | Composite passivant for soil polluted by heavy metal and preparation method |
| CN107384424A (en) * | 2017-08-07 | 2017-11-24 | 韦孺聪 | A kind of alkaline soil improver |
Non-Patent Citations (2)
| Title |
|---|
| 杨洁、滕彦国: "《土壤-植物系统中钒的生物可利用性研究》", 31 May 2016, 地质出版社 * |
| 胡振琪、杨秀红、张迎春: "《重金属污染土壤的粘土矿物与菌根稳定化修复技术》", 31 July 2006, 地质出版社 * |
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| CN109772868A (en) * | 2019-03-07 | 2019-05-21 | 新昌县以琳环保科技有限公司 | The ecological environment of soil restorative procedure for preventing and treating heavy metal pollution |
| CN110016350A (en) * | 2019-04-29 | 2019-07-16 | 深圳润康生态环境股份有限公司 | Arable land heavy-metal contaminated soil preparation for repairing and preparation method thereof |
| CN112538355A (en) * | 2020-12-07 | 2021-03-23 | 安徽龙码数据科技有限公司 | Long-acting soil remediation agent and preparation method thereof |
| CN113248333A (en) * | 2021-05-31 | 2021-08-13 | 河南中米生态科技有限公司 | Granular soil conditioner for composite heavy metal pollution and preparation method thereof |
| CN113481014A (en) * | 2021-07-15 | 2021-10-08 | 中国科学院沈阳应用生态研究所 | Preparation and application methods of cadmium-polluted soil solid waste base passivator |
| CN114015451A (en) * | 2021-11-01 | 2022-02-08 | 宁波慈溪生物医学工程研究所 | Alkalescent soil cadmium passivator and application thereof |
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