CN106753383A - A kind of passivation heavy metals in farmland cadmium, conditioner of mercury combined contamination soil and preparation method thereof - Google Patents
A kind of passivation heavy metals in farmland cadmium, conditioner of mercury combined contamination soil and preparation method thereof Download PDFInfo
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- CN106753383A CN106753383A CN201611046451.4A CN201611046451A CN106753383A CN 106753383 A CN106753383 A CN 106753383A CN 201611046451 A CN201611046451 A CN 201611046451A CN 106753383 A CN106753383 A CN 106753383A
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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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
-
- 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
- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
-
- 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
-
- 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)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Pest Control & Pesticides (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of passivation heavy metals in farmland cadmium, the conditioner of mercury combined contamination soil, with and preparation method and application.The present invention is made according to following weight composition：50 150 parts of attapulgite, is passivated one 20 60 parts of active ingredient, is passivated 2 0.5 5 parts of active ingredient, 5 25 parts of antagonist composition, 150 180 parts of deionized water.Material of the present invention provides abundant nutrient for crop growth, promotes the growth of paddy rice, containing various effective passivation compositions, has preferable passivation effect to various heavy contaminated soil type, can substantially reduce the content of heavy metal in agricultural product.The present invention will not produce secondary pollution, safety and environmental protection to agricultural land soil.
Description
Technical field
The invention belongs to heavy metal pollution of soil recovery technique field, more particularly to a kind of passivation heavy metals in farmland cadmium, mercury
The conditioner of combined contamination soil, and the conditioner preparation method.
Background technology
China's heavy metal polluted soil of farmland is administered and started late, and passivation treatment technology is also immature.Passivator now
Mainly using clay mineral, lime, organic matter, phosphate etc. carries out single treatment, and above-mentioned all kinds of method treatment cause soil
The passivation effect of heavy metal is affected by environment larger, and treatment soil types and heavy metal type are limited, single passivating material
A large amount of additions can also change the physicochemical property of soil, influence the yield even normal growth of plant.
Attapulgite is a kind of natural clay mineral, the physicochemical property of energy improved soil in environment is added to, to environment, agriculture
Crop is pollution-free.It mainly contains Mg, Si element, also contains variable amount of Na+、Ca2+、Fe3+、Al3+, can be the life of crops
It is long that nutrient is provided.Potassium dihydrogen phosphate, available P, available state potassium are to crop growth instant effect；Its phosphate radical for containing
Combined with heavy metal and easily formed sediment hard to tolerate；Calcium and magnesium phosphorus main component is calcium phosphate, calcium silicates, magnesium silicate, is crops
Growth provides calcium, the nutrient such as magnesium, and being added in soil has slow release effect, phosphate radical to exist for heavy metal-polluted soil long-term
Stabilisation provides safeguard；Humic acid organic nutrient for crop growth is provided, the active ingredient humic acid in the middle of humic acid
With the complex state that heavy metal combines to form indissoluble, the biological effectiveness of heavy metal is reduced.Manganese sulfide, ferrous sulfate are Crop Root
System provides preferable reproducibility environment and a certain amount of S2+, promote heavy metal and the sulphion to be combined into precipitation, ferrous ion is deposited
Suppressing the absorption of crops heavy metal.
The present invention mixes attapulgite, passivation active ingredient one, passivation active ingredient two, antagonist according to a certain percentage
Close, for crop growth provides abundant nutrient, the physicochemical property of improved soil, effective passivation composition of addition includes phosphorus
Acid group, sulphion, humic acid, are presented diversification, reduce the risk of single active ingredient passivation, are heavy-metal composite pollution
Soil types reparation and reduction crop heavy metal content provide safeguard.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of passivation heavy metals in farmland cadmium, mercury combined contamination soil
Conditioner, it is characterised in that including following component：Attapulgite, is passivated active ingredient one, is passivated active ingredient two, antagonism
Agent.
Preferably, in parts by weight, including following component component and deionized water component：Attapulgite 50-150 parts,
Passivation active ingredient one is 20-60 parts, and passivation active ingredient two is 0.5-5 parts, and antagonist is 5-25 parts, and deionized water is 150-
180 parts.
Preferably, it is one or more mixing in the middle of potassium dihydrogen phosphate, calcium and magnesium phosphorus, humic acid to be passivated active ingredient one.
Preferably, passivation effective ingredient two is manganese sulfide or ferrous sulfate, the wherein purity of manganese sulfide>98%.
Preferably, antagonist be ferrous sulfate or calcium chloride or calcium phosphate or calcium sulfate or iron oxide or calcium oxide, wherein
Ferrous sulfate purity>97%.
Preferably, the attapulgite number is 100 parts, and mesh number is 100-200.
The present invention is also provided and a kind of prepares right above-mentioned passivation heavy metals in farmland cadmium, the conditioner of mercury combined contamination soil
Method, it is characterised in that comprise the following steps：
(1) high-temperature activation first is carried out to attapulgite；
(2) attapulgite of step (1) is mixed with passivation active ingredient one again, plus deionized water is stirred, and mixes
After be dried, crush；
(3) mixture for obtaining step (2) is added in mixer with passivation composition two, antagonist and is stirred, and mixes
Close uniform, obtain the composite passivated material of farmland soil heavy metals, i.e., described conditioner.
The activation temperature of attapulgite is 250-350 DEG C preferably in step (1).
It is preferred that the component of each composition is attapulgite 50-150 parts with the component of deionized water, passivation active ingredient one 20-
60 parts, 0.5-5 part of active ingredient two is passivated, antagonist is that 5-25 parts, deionized water 150-180 parts or attapulgite number are
100 parts.
Present invention passivation effective ingredient manganese disulfide, is preferably as follows：Purity>98%, the prosperous section's powder material manufacture in producer Anshan has
Limit company produces.Antagonist ferrous sulfate, is preferably as follows：Purity>97%, the auspicious Chemical Manufacture of Langfang section of producer.
Compared with prior art, a kind of passivation heavy metals in farmland cadmium of the present invention, the conditioning of mercury combined contamination soil
Agent and preparation method thereof has reached following effect：By attapulgite, passivation active ingredient one, passivation active ingredient two, antagonist
Mix according to a certain percentage, for crop growth provides abundant nutrient, the physicochemical property of improved soil, addition it is effective
Passivation composition includes phosphate radical, sulphion, humic acid, and diversification is presented, and reduces the risk of single active ingredient passivation, is
The reparation of heavy-metal composite pollution soil types and reduction crop heavy metal content provide safeguard, present invention materials safety and environmental protection,
Handling process is simple, for crop growth provides abundant nutrient；Various passivation active ingredients and antagonism composition are compounded
To together, there is overlaying function and good repairing environment is provided to passivation heavy metal-polluted soil；The present invention is various heavy for processing
The soil of metallic pollution type has preferable repairing effect, hence it is evident that reduce agricultural product content of beary metal.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, but the present invention is not limited to following examples.
Embodiment 1
The attapulgite of 100 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 250 DEG C of hot environment
One mixing, adds deionized water stirring 4h, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Close uniform.Material weight number is 50 parts of attapulgite, and passivation active ingredient one is 60 parts, and passivation active ingredient two uses manganese sulfide
Or ferrous sulfate is 5 parts, antagonist ferrous sulfate is 25 parts, 150 parts of deionized water.
During passivator is added into cadmium, mercury combined contamination soil, the mass ratio of passivator and soil, passivator：Soil=
2:1000.Soil is well mixed with passivator；Soil moisture content 100% is added water to, allows it to evaporate in its natural state, period is not
It is disconnected to add water, it is ensured that soil moisture content is not less than 60%, 30 days duration.Water spinach plantation is carried out in the soil afterwards.Treat
Water spinach carries out heavy metal Hg, cadmium content and determines and soil available mercury and cadmium content measure after growing up, the results are shown in Table 1.
Embodiment 2
The attapulgite of 150 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 270 DEG C of hot environment
One mixing, adds deionized water stirring 4h, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Close uniform.Material weight number is 100 parts of attapulgite, and passivation active ingredient one is 50 parts, the vulcanization of passivation active ingredient two
Manganese is 3 parts, and antagonist calcium chloride is 20 parts, 160 parts of deionized water.
Passivation scheme and water spinach plantation flow such as embodiment 1, heavy metal Hg, cadmium content are carried out after water spinach grows up and are surveyed
Fixed and soil available mercury and cadmium content are determined, and the results are shown in Table 1.
Embodiment 3
The attapulgite of 100 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 270 DEG C of hot environment
One mixing, adds deionized water stirring, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Uniformly.Material weight number is 150 parts of attapulgite, and passivation active ingredient one is 30 parts, and passivation active ingredient two is sub- with sulfuric acid
Iron is 1 part, and antagonist calcium phosphate is 15 parts, 170 parts of deionized water.
Passivation scheme and water spinach plantation flow such as embodiment 1, heavy metal Hg, cadmium content are carried out after water spinach grows up and are surveyed
Fixed and soil available mercury and cadmium content are determined, and the results are shown in Table 1.
Embodiment 4
The attapulgite of 200 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 270 DEG C of hot environment
One mixing, adds deionized water stirring 4h, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Close uniform.Material weight number is 100 parts of attapulgite, and passivation active ingredient one is 20 parts, is passivated active ingredient manganese sulfide
Or ferrous sulfate two is 0.5 part, antagonist calcium sulfate or iron oxide are 15 parts, 180 parts of deionized water.
Passivation scheme and water spinach plantation flow such as embodiment 1, heavy metal Hg, cadmium content are carried out after water spinach grows up and are surveyed
Fixed and soil available mercury and cadmium content are determined, and the results are shown in Table 1.
Embodiment 5
The attapulgite of 100 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 270 DEG C of hot environment
One mixing, adds deionized water stirring 4h, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Close uniform.Material weight number is 100 parts of attapulgite, and passivation active ingredient one is 50 parts, is passivated active ingredient manganese sulfide
It it is 2 parts with ferrous sulfate two, antagonist calcium phosphate and calcium sulfate and iron oxide and calcium oxide are 5 parts, 150 parts of deionized water.
Passivation scheme and water spinach plantation flow such as embodiment 1, heavy metal Hg, cadmium content are carried out after water spinach grows up and are surveyed
Fixed and soil available mercury and cadmium content are determined, and the results are shown in Table 1.
Embodiment 6
The attapulgite of 100 mesh is activated into 2h, activation attapulgite and passivation active ingredient under 270 DEG C of hot environment
One mixing, adds deionized water stirring 4h, drying and crushing；4h is sufficiently stirred for passivation active ingredient two and antagonist again, is mixed
Close uniform.Material weight number is 100 parts of attapulgite, and passivation active ingredient one is 40 parts, is passivated active ingredient manganese sulfide
Or ferrous sulfate two is 4 parts, antagonist ferrous sulfate or calcium chloride or calcium phosphate or calcium sulfate or iron oxide or calcium oxide are
20 parts, 150 parts of deionized water.
Passivation scheme and water spinach plantation flow such as embodiment 1, heavy metal Hg, cadmium content are carried out after water spinach grows up and are surveyed
Fixed and soil available mercury and cadmium content are determined, and the results are shown in Table 1.
The water spinach mercury of table 1., cadmium content are determined and soil available Cd, Mercury Determination result
Compared with prior art, described in above-described embodiment a kind of passivation heavy metals in farmland cadmium, mercury combined contamination soil
Conditioner and preparation method thereof has reached following effect：By attapulgite, passivation active ingredient one, passivation active ingredient two, short of money
Anti-agent mixes according to a certain percentage, for crop growth provides abundant nutrient, the physicochemical property of improved soil, addition
Effectively passivation composition includes phosphate radical, sulphion, humic acid, and diversification is presented, and reduces the risk of single active ingredient passivation
Property, it is that the reparation of heavy-metal composite pollution soil types and reduction crop heavy metal content provide safeguard, present invention materials safety
Environmental protection, handling process is simple, for crop growth provides abundant nutrient；By various passivation active ingredients and antagonism composition
Compound together, have overlaying function and good repairing environment is provided to passivation heavy metal-polluted soil；The present invention is more for processing
The soil of heavy metal species pollution type has preferable repairing effect, hence it is evident that reduce agricultural product content of beary metal.
Described above has shown and described some preferred embodiments of the application, but as previously described, it should be understood that the application
Form disclosed herein is not limited to, the exclusion to other embodiment is not to be taken as.
Claims (10)
1. it is a kind of to be passivated heavy metals in farmland cadmium, the conditioner of mercury combined contamination soil, it is characterised in that including following component：
Attapulgite, is passivated active ingredient one, is passivated active ingredient two, antagonist.
2. conditioner as claimed in claim 1, it is characterised in that in parts by weight, including following component component and deionized water
Component：Attapulgite 50-150 parts, passivation active ingredient one is 20-60 parts, and passivation active ingredient two is 0.5-5 parts, antagonism
Agent is 5-25 parts, and deionized water is 150-180 parts.
3. conditioner as claimed in claim 1, it is characterised in that passivation active ingredient one is potassium dihydrogen phosphate, calcium and magnesium phosphorus, corruption
Grow one or more mixing in the middle of acid.
4. conditioner as claimed in claim 1, it is characterised in that passivation effective ingredient two is ferrous sulfate or manganese sulfide, its
The purity of middle manganese sulfide>98%.
5. conditioner as claimed in claim 1, it is characterised in that antagonist is ferrous sulfate or calcium chloride or calcium phosphate or sulphur
Sour calcium or iron oxide or calcium oxide, the wherein purity of ferrous sulfate>97%.
6. conditioner as claimed in claim 1, it is characterised in that the attapulgite number is 100 parts, and mesh number is 100-
200。
7. any one passivation heavy metals in farmland cadmium, the side of the conditioner of mercury combined contamination soil described in claim 1-6 are prepared
Method, it is characterised in that comprise the following steps：
(1) high-temperature activation first is carried out to attapulgite；
(2) attapulgite of step (1) is mixed with passivation active ingredient one again, plus deionized water is stirred, and mixes laggard
Row is dried, crushed；
(3) mixture for obtaining step (2) is added in mixer with passivation composition two, antagonist and is stirred, and mixing is equal
It is even, obtain the composite passivated material of farmland soil heavy metals, i.e., described conditioner.
8. method as claimed in claim 7, it is characterised in that the activation temperature of attapulgite is 250-350 DEG C in step (1).
9. method as claimed in claim 7 or 8, it is characterised in that principle active component is appointing in claim 1,3,4,5
What is a kind of.
10. method as claimed in claim 7 or 8, it is characterised in that the component of each composition and the component of deionized water such as right
It is required that the component numerical value described in 2 or 6.
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| CN201611046451.4A CN106753383A (en) | 2016-11-23 | 2016-11-23 | A kind of passivation heavy metals in farmland cadmium, conditioner of mercury combined contamination soil and preparation method thereof |
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| CN201611046451.4A CN106753383A (en) | 2016-11-23 | 2016-11-23 | A kind of passivation heavy metals in farmland cadmium, conditioner of mercury combined contamination soil and preparation method thereof |
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Cited By (5)
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| CN108219794A (en) * | 2017-12-30 | 2018-06-29 | 上海康恒环境修复有限公司 | One kind repairs medicament and application method for Wheat in Northern growing area farmland cadmium pollution soil |
| CN109122143A (en) * | 2018-09-14 | 2019-01-04 | 国家地质实验测试中心 | A kind of technique in the micro- geochemistry barrier technique repairing heavy metal pollution rice transplanting rice cultivation field of root system |
| CN110512075A (en) * | 2019-09-10 | 2019-11-29 | 河南豫光锌业有限公司 | A kind of method of cobaltous sulfate manganese mixed liquor deeply purifying and removing cadmium |
| CN111303893A (en) * | 2020-03-27 | 2020-06-19 | 重庆市环境保护工程设计研究院有限公司 | Composite passivator for reducing soil available cadmium and compound optimization method |
| CN117063655A (en) * | 2023-08-15 | 2023-11-17 | 湖南省土壤肥料研究所 | Method for preventing and controlling rice field submerged cultivation and cooperatively reducing cadmium in water flooding environment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219794A (en) * | 2017-12-30 | 2018-06-29 | 上海康恒环境修复有限公司 | One kind repairs medicament and application method for Wheat in Northern growing area farmland cadmium pollution soil |
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| CN117063655A (en) * | 2023-08-15 | 2023-11-17 | 湖南省土壤肥料研究所 | Method for preventing and controlling rice field submerged cultivation and cooperatively reducing cadmium in water flooding environment |
| CN117063655B (en) * | 2023-08-15 | 2024-04-23 | 湖南省土壤肥料研究所 | Method for preventing and controlling rice field submerged cultivation and cooperatively reducing cadmium in water flooding environment |
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Effective date of registration: 20190730 Address after: Room 1905A on Floor 19, Building 56, East Fourth Ring Road, Chaoyang District, Beijing Applicant after: The Beijing science and Technology Development Co Ltd Applicant after: Inner Mongolia Bennong Ecology Technology Co., Ltd. Address before: Room 1905A on Floor 19, Building 56, East Fourth Ring Road, Chaoyang District, Beijing Applicant before: The Beijing science and Technology Development Co Ltd |
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Application publication date: 20170531 |
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