CN104694130A - Farmland soil Cu<2+> curing agent - Google Patents
Farmland soil Cu<2+> curing agent Download PDFInfo
- Publication number
- CN104694130A CN104694130A CN201310646444.8A CN201310646444A CN104694130A CN 104694130 A CN104694130 A CN 104694130A CN 201310646444 A CN201310646444 A CN 201310646444A CN 104694130 A CN104694130 A CN 104694130A
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- CN
- China
- Prior art keywords
- parts
- soil
- solidifying agent
- lime
- cement
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- 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.)
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Classifications
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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
- C09K17/10—Cements, e.g. Portland cement
-
- 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)
- 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 farmland soil Cu<2+> curing agent. The farmland soil Cu<2+> curing agent comprises, by mass, 10-15 parts of calcium silicate, 15-25 parts of calcium hydroxide, 20-30 parts of fly ash, 10-15 parts of cement and a proper amount of lime. The curing agent reduces the migration ability of metal Cu<2+> pollutants to a certain degree, can promote the curing of Cu<2+> and mitigates the heavy metal pollutants in soil in order to reduce the accumulation amount of metal ion sin crops and reduce the harm risk to the ecologic system.
Description
Technical field
The invention belongs to a kind of solidifying agent, be specifically related to a kind of agricultural land soil Cu
2+solidifying agent.
Background technology
To be not good at and the reason such as sewage irrigation Term Fertilization and agricultural sludge makes plurality of heavy metal entered environment agricultural pollution aggravate toxic heavy metal content in agricultural land soil sharply to increase and cause the day by day serious soil fertility degeneration crop yield of heavy metal pollution of soil and quality to decline to have a strong impact on environmental quality and economic Sustainable development because three industrial wastes quantity discharged increases solid waste process in recent years, to it is reported the Cd that China heavy metals in farmland Cd contaminated area has reached 20,000 ha and produces every year
2+content overproof agricultural-food reach 14.6 hundred million kg and have the trend China increased the weight of gradually to wait the nearly 2.0 × l0 of cultivated area of heavy metal contamination by mercury cadmium arsenic lead
7ha account for total area under cultivation 1/5 wherein industrial triwaste pollution plough 1.0 × l0
7the farmland area 3.3 × 10 of ha sewage irrigation
6ha China every year because of heavy metal contamination the grain of the underproduction more than 1.0 × l0
7the contaminated by heavy metals every year grain of t reaches 1.2 × l0
7it is extremely urgent that the financial loss that t causes thus carries out heavy metals in farmland pollution amelioration as seen up to more than 20,000,000,000 yuan.
The research of heavy metal chemosetting/stabilization reparation starts from the 1950's people and uses sorbent material to fix heavy metals different in water body along with the further research of people to heavy metal-polluted soil occurrence patterns the earliest to find that amount that the toxicity of heavy metal and its various morphology corresponding plants existed in soil absorb heavy metal depends on the full dose of soil available heavy metal content instead of heavy metal in soil.Fixation in situ makes it produce the series reaction such as precipitation adsorption ion-exchange humify and redox to reduce the biological effectiveness of heavy metal in edatope and transportable property thus reduce these heavy metal elements to vegeto-animal toxicity 4 in-situ solidifyings/stabilization restorative procedure in cost and the improvement requirement that all can meet heavy-metal contaminated soil the time better by adding fixing agent regulate in soil and changing the physicochemical property of heavy metal in soil.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of metal pollutant that can effectively suppress in soil, from its form transformation, be that the form that not soluble, transfer ability or toxicity are less is innoxious to realize, to reduce the solidifying agent of the harm risk to the ecosystem by contamination transform.
In order to achieve the above object, this invention takes following technical scheme:
A kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 10 ~ 15 parts, 15 ~ 25 parts, calcium hydroxide, 20 ~ 30 parts, flyash, cement 10 ~ 15 parts, lime is appropriate.
Preferred version one, a kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 11 ~ 14 parts, 17 ~ 23 parts, calcium hydroxide, 22 ~ 28 parts, flyash, cement 11 ~ 15 parts, lime is appropriate.
Preferred version two, a kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 10 parts, 16 parts, calcium hydroxide, 23 parts, flyash, cement 11 parts, lime is appropriate.
Preferred version three, a kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 13 parts, 20 parts, calcium hydroxide, 24 parts, flyash, cement 12 parts, lime is appropriate.
Described flyash can replace with Steel-slag.
Agricultural land soil Cu in technique scheme
2+solidifying agent is obtained by following steps:
(1) Calucium Silicate powder, calcium hydroxide, flyash, cement and lime are mixed, after stirring, toasted, make its water content control 2 ~ 8%;
(2) according to soil characteristic adjustment solidifying agent usage quantity, mix rear compaction moulding thoroughly and namely obtain solidifying agent of the present invention.
Solidifying agent of the present invention reduces Ni metal to a certain extent
2+the transfer ability of pollutent, can promote Cu
2+fixing, alleviate the heavy metal contaminants in soil, thus reduce the semi-invariant of metal ion in farm crop, reduce the harm risk to the ecosystem.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1:
A kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 10 parts, 16 parts, calcium hydroxide, 23 parts, slag, cement 11 parts, lime is appropriate.
This agricultural land soil Cu
2+solidifying agent is obtained by following steps:
(1) Calucium Silicate powder, calcium hydroxide, slag, cement and lime are mixed, after stirring, toasted, make its water content control 2 ~ 8%;
(2) according to soil characteristic adjustment solidifying agent usage quantity, mix rear compaction moulding thoroughly and namely obtain solidification formulation of the present invention.
This solidifying agent reduces Ni metal to a certain extent
2+the transfer ability of pollutent, alleviates the heavy metal contaminants in soil.
Embodiment 2:
A kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 13 parts, 20 parts, calcium hydroxide, 24 parts, flyash, cement 12 parts, lime is appropriate.
This agricultural land soil Cu
2+solidifying agent is obtained by following steps:
(1) Calucium Silicate powder, calcium hydroxide, flyash, cement and lime are mixed, after stirring, toasted, make its water content control 2 ~ 8%;
(2) according to soil characteristic adjustment solidifying agent usage quantity, mix rear compaction moulding thoroughly and namely obtain solidification formulation of the present invention.
This solidifying agent can promote Cu
2+fixing, thus reduce the semi-invariant of metal ion in farm crop, reduce the harm risk to the ecosystem.
Embodiment 3:
A kind of agricultural land soil Cu
2+solidifying agent, by mass parts, comprises following material:
Calucium Silicate powder 15 parts, 25 parts, calcium hydroxide, 28 parts, slag, cement 15 parts, lime is appropriate.
This agricultural land soil Cu
2+solidifying agent is obtained by following steps:
(1) Calucium Silicate powder, calcium hydroxide, slag, cement and lime are mixed, after stirring, toasted, make its water content control 2 ~ 8%;
(2) according to soil characteristic adjustment solidifying agent usage quantity, mix rear compaction moulding thoroughly and namely obtain solidification formulation of the present invention.
This solidifying agent can promote Cu
2+fixing, alleviate the heavy metal contaminants in soil, thus reduce the semi-invariant of metal ion in farm crop.
Solidifying agent of the present invention reduces Ni metal to a certain extent
2+the transfer ability of pollutent, can promote Cu
2+fixing, alleviate the heavy metal contaminants in soil, thus reduce the semi-invariant of metal ion in farm crop, reduce the harm risk to the ecosystem, therefore, be mainly used as agricultural land soil Cu
2+solidifying agent.
Invention can be understood further by the invention process given above; above embodiment is only several specific embodiment of the present invention; but design concept of the present invention is not limited thereto; all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading scope.
Claims (5)
1. an agricultural land soil Cu
2+solidifying agent, is characterized in that, by mass parts, comprises following material: Calucium Silicate powder 10 ~ 15 parts, 15 ~ 25 parts, calcium hydroxide, 20 ~ 30 parts, flyash, and cement 10 ~ 15 parts, lime is appropriate.
2. agricultural land soil Cu according to claim 1
2+solidifying agent, is characterized in that, described flyash can replace with Steel-slag.
3. according to the arbitrary described agricultural land soil Cu of claim 1 to 2
2+solidifying agent, is characterized in that, by mass parts, comprises following material: Calucium Silicate powder 11 ~ 14 parts, 17 ~ 23 parts, calcium hydroxide, 22 ~ 28 parts, flyash, and cement 11 ~ 15 parts, lime is appropriate.
4. according to the arbitrary described agricultural land soil Cu of claim 1 to 2
2+solidifying agent, is characterized in that, by mass parts, comprises following material: Calucium Silicate powder 10 parts, 16 parts, calcium hydroxide, 23 parts, flyash, and cement 11 parts, lime is appropriate.
5. according to the arbitrary described agricultural land soil Cu of claim 1 to 2
2+solidifying agent, is characterized in that, by mass parts, comprises following material: Calucium Silicate powder 13 parts, 20 parts, calcium hydroxide, 24 parts, flyash, and cement 12 parts, lime is appropriate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646444.8A CN104694130A (en) | 2013-12-04 | 2013-12-04 | Farmland soil Cu<2+> curing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646444.8A CN104694130A (en) | 2013-12-04 | 2013-12-04 | Farmland soil Cu<2+> curing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104694130A true CN104694130A (en) | 2015-06-10 |
Family
ID=53341696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310646444.8A Pending CN104694130A (en) | 2013-12-04 | 2013-12-04 | Farmland soil Cu<2+> curing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104694130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085444A (en) * | 2016-06-06 | 2016-11-09 | 佛山市聚成生化技术研发有限公司 | The preparation method of a kind of soil improvement chelating agen reducing Lead In Soil content and prepared soil improvement chelating agen |
-
2013
- 2013-12-04 CN CN201310646444.8A patent/CN104694130A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085444A (en) * | 2016-06-06 | 2016-11-09 | 佛山市聚成生化技术研发有限公司 | The preparation method of a kind of soil improvement chelating agen reducing Lead In Soil content and prepared soil improvement chelating agen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |