CN109317508A - The vitrifying additive and its renovation technique of a kind of pair of heavy metal pollution soil remediation - Google Patents
The vitrifying additive and its renovation technique of a kind of pair of heavy metal pollution soil remediation Download PDFInfo
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- CN109317508A CN109317508A CN201811170375.7A CN201811170375A CN109317508A CN 109317508 A CN109317508 A CN 109317508A CN 201811170375 A CN201811170375 A CN 201811170375A CN 109317508 A CN109317508 A CN 109317508A
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- additive
- vitrifying
- heavy metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to technical field of soil remediation, more particularly to the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the vitrifying additive of the heavy-metal contaminated soil reparation includes silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%, metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~3% according to adding raw materials mass percent, remaining is water；Additive of the present invention is simple and is easy to get extensively, it is easy to industrialized production, with good economy and environmental benefit, heavy metal ion effect after high temp glassization reparation is extremely stable, and the soil sample after repairing can carry out recycling recycling, to increase economic efficiency, the soil sample after vitrifying is repaired, which can be sent to shipyard, to be carried out sandblasting or is directly transported to cement kiln to recycle as clinker.
Description
Technical field
The invention belongs to technical field of soil remediation, and in particular to the vitrifying of a kind of pair of heavy metal pollution soil remediation adds
Add agent and its renovation technique.
Background technique
With the development of the modernization of industry, soil pollution has become the principal element for endangering the national economic development, and
The feature of soil pollution maximum is concealment, permanence and irreversibility, therefore is being badly in need of a kind of means at present to contaminated soil
Administer effectively and for a long time.Vitrification is useless primarily directed to the high danger of inorganic content in existing disposal technology
The recycling of object or contaminated soil, a kind of innoxious higher technology of level, therefore as this efficient disposal technology develops
It is bound to realize domestic contaminated soil " zero-emission " this ambitious goal in the near future.
Summary of the invention
The purpose of the present invention is to provide a kind of vitrifying additive of efficient heavy contaminated soil remediation and its reparations
Technique, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: the glass of a kind of pair of heavy metal pollution soil remediation
Change additive, the vitrifying additive of the heavy-metal contaminated soil reparation includes dioxy according to the mass percent of adding raw materials
SiClx 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%, metal-chelator 3%~5%, sodium carbonate 4%~
6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~3%.
Preferably, the vitrifying additive of the heavy-metal contaminated soil reparation according to adding raw materials mass percent also
Including water 15%~25%.
The renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the heavy-metal contaminated soil are repaired
The renovation technique of multiple vitrifying additive comprises the following steps:
S1, additive is prepared,
A, according to addition mass ratio choose silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%,
Metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7%, ferrous sulfate 1%~
3%, remaining is water；
B, the raw material chosen in a is sufficiently mixed by stirring and additive is made；
S2, raw material are chosen, and the bulk particulate matter of the additive and contaminated soil that prepare in S1 is chosen；
The bulk particulate matter of contaminated soil in S2 is screened, and is put into blender by S3, Raw material processing；
S4, reparation, the additive prepared in water and S1 is added into blender, and starting blender stirs certain time, makes
Water and additive are sufficiently mixed with contaminated soil；
The material stirred evenly in S4 is put into disposition furnace and carries out vitrifying processing, to make material by S5, dry glass
Dry glass；
S6, detection detect the content of heavy metal in cured product in S5 according to ad hoc approach.
Preferably, in S1, the silica, borax, calcium hydroxide, metal-chelator, sodium carbonate, magnesium sulfate, carbon
The smart and described ferrous sulfate is powdered.
Preferably, in S1, the time of the additive preparation stirring is 5-10 minutes.
Preferably, in S4, the time of the blender stirring is 10-20 minutes.
Preferably, in S5, at 1050 DEG C~1350 DEG C, the processing time is the vitrified temperature control of the disposition furnace
35min~75min.
Preferably, in S6, the method for the detection is the measurement inductive coupling of 22 kinds of metallic elements of solid waste
Plasma emlssion spectrometry HJ781-2016.
Additive of the present invention is simple and is easy to get extensively, easy to industrialized production, has good economy and environmental benefit, weight
Metal ion repairing effect after high temp glass is extremely stable, and it is repaired after soil sample can to carry out recycling sharp again
With to increase economic efficiency, the soil sample after vitrifying additive reparation can be sent to shipyard and carry out sandblasting or directly fortune
It is recycled to cement kiln as clinker.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
The following examples are intended to illustrate the invention, but cannot be used to limit the scope of the invention.Item in embodiment
Part can be adjusted according to actual conditions are further, under concept thereof of the invention all to method simple modifications of the invention
Belong to the scope of protection of present invention.
Embodiment 1
The vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the vitrifying of the heavy-metal contaminated soil reparation
Additive according to the mass percent of adding raw materials include silica 25%~40%, borax 2%~4%, calcium carbonate 4%~
6%, metal-chelator 3%~5%, calcium hydroxide 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate
1%~3%, the vitrifying additive of the heavy-metal contaminated soil reparation further includes water according to the mass percent of adding raw materials
15%~25%.
The renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the heavy-metal contaminated soil are repaired
The renovation technique of multiple vitrifying additive comprises the following steps:
S1, additive is prepared,
A, according to addition mass ratio choose silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%,
Metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~
3%, remaining is water, the silica, borax, calcium hydroxide 4%~6%, metal-chelator, sodium carbonate, magnesium sulfate, carbon
It is powdered with the ferrous sulfate；
B, the raw material chosen in a is sufficiently mixed by stirring and additive is made, the time of the additive preparation stirring
It is 5-10 minutes；
S2, raw material are chosen, and the bulk particulate matter of the additive and contaminated soil that prepare in S1 is chosen；
The bulk particulate matter of contaminated soil in S2 is screened, and is put into blender by S3, Raw material processing；
S4, reparation, the additive prepared in water and S1 is added into blender, and starting blender stirs 10-20 minutes, makes
Water and additive are sufficiently mixed with contaminated soil；
The material stirred evenly in S4 is put into disposition furnace and carries out vitrifying processing, the disposition furnace by S5, dry glass
Vitrified temperature control is at 1050 DEG C~1350 DEG C, and the processing time is 35min~75min, to make dry materials vitrifying；
S6, detection, according to the measurement inductively coupled plasma atomic emission of 22 kinds of metallic elements of solid waste
Method HJ781-2016 detects the content of heavy metal in cured product in S5.
Embodiment 2
The vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the vitrifying of the heavy-metal contaminated soil reparation
Additive includes silica 25%~40%, borax 2%~4%, calcium hydroxide 4% according to the mass percent of adding raw materials
~6%, metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate
1%~3%, the vitrifying additive of the heavy-metal contaminated soil reparation further includes water according to the mass percent of adding raw materials
15%~25%.
The renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the heavy-metal contaminated soil are repaired
The renovation technique of multiple vitrifying additive comprises the following steps:
S1, additive is prepared,
A, according to addition mass ratio choose silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%,
Metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~
3%, remaining is water, the silica, borax, calcium hydroxide, metal-chelator, sodium carbonate, magnesium sulfate, carbon and the sulphur
Sour ferrous iron is powdered；
B, the raw material chosen in a is sufficiently mixed by stirring and additive is made, the time of the additive preparation stirring
It is 5 minutes；
S2, raw material are chosen, and the bulk particulate matter of the additive and contaminated soil that prepare in S1 is chosen；
The bulk particulate matter of contaminated soil in S2 is screened, and is put into blender by S3, Raw material processing；
The additive prepared in water and S1 is added into blender by S4, reparation, and starting blender stirs 20 minutes, makes water
It is sufficiently mixed with additive and contaminated soil；
The material stirred evenly in S4 is put into disposition furnace and carries out vitrifying processing, the disposition furnace by S5, dry glass
Vitrified temperature control is at 1050 DEG C~1350 DEG C, and the processing time is 35min~75min, to make dry materials vitrifying；
S6, detection, according to the measurement inductively coupled plasma atomic emission of 22 kinds of metallic elements of solid waste
Method HJ781-2016 detects the content of heavy metal in cured product in S5.
Embodiment 3
The vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the vitrifying of the heavy-metal contaminated soil reparation
Additive includes silica 25%~40%, borax 2%~4%, calcium hydroxide 4% according to the mass percent that raw material adds
~6%, metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate
1%~3%, the vitrifying additive of the heavy-metal contaminated soil reparation further includes water according to the mass percent that raw material adds
15%~25%.
The renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, the heavy-metal contaminated soil are repaired
The renovation technique of multiple vitrifying additive comprises the following steps:
S1, additive is prepared,
A, according to addition mass ratio choose silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%,
Metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~
3%, remaining is water, the silica, borax, calcium hydroxide, metal-chelator, sodium carbonate, magnesium sulfate, carbon and the sulphur
Sour ferrous iron is powdered；
B, the raw material chosen in a is sufficiently mixed by stirring and additive is made, the time of the additive preparation stirring
It is 10 minutes；
S2, raw material are chosen, and the bulk particulate matter of the additive and contaminated soil that prepare in S1 is chosen；
The bulk particulate matter of contaminated soil in S2 is screened, and is put into blender by S3, Raw material processing；
The additive prepared in water and S1 is added into blender by S4, reparation, and starting blender stirs 10 minutes, makes water
It is sufficiently mixed with additive and contaminated soil；
The material stirred evenly in S4 is put into disposition furnace and carries out vitrifying processing, the disposition furnace by S5, dry glass
Vitrified temperature control is at 1050 DEG C~1350 DEG C, and the processing time is 35min~75min, to make dry materials vitrifying；
S6, detection, according to the measurement inductively coupled plasma atomic emission of 22 kinds of metallic elements of solid waste
Method HJ781-2016 detects the content of heavy metal in cured product in S5.
The concrete case repaired using this method to contaminated soil is as follows:
Case 1
Front and back Soil K+adsorption result (unit mg/L) is repaired in Hangzhou project vitrifying
Case 2
Table two: front and back Soil K+adsorption result (unit mg/L) is repaired in Shijiazhuang project vitrifying
Case 3
Three: front and back Soil K+adsorption result (unit mg/L) is repaired in Distributions in Liaocheng of Shandong Province vitrifying
Obtained according to the above concrete case: contaminated soil detects it after vitrification is handled, the side of detection
Method uses the measurement inductively coupled plasma emission spectrography HJ781-2016 of 22 kinds of metallic elements of solid waste,
Heavy-metal contaminated soil is evaluated after vitrifying is disposed, it is possible to find through vitrification, treated that soil sample all meets country
The contaminated soil remediation standard and soil sample after repairing can carry out resource utilization, thus the vitrification be have it is stronger
Practical value.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. the vitrifying additive of a kind of pair of heavy metal pollution soil remediation, it is characterised in that: the heavy-metal contaminated soil is repaired
Multiple vitrifying additive includes silica 25%~40%, borax 2%~4%, hydroxide according to adding raw materials mass percent
Calcium 4%~6%, metal-chelator 3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~
3%。
2. the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 1, it is characterised in that: institute
It further includes water 15%~25% that the vitrifying additive of heavy-metal contaminated soil reparation, which is stated, according to the mass percent of adding raw materials.
3. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 2,
Be characterized in that: the renovation technique of the vitrifying additive of the heavy-metal contaminated soil reparation comprises the following steps:
S1, additive is prepared；
A chooses silica 25%~40%, borax 2%~4%, calcium hydroxide 4%~6%, metal-chelator according to addition mass ratio
3%~5%, sodium carbonate 4%~6%, magnesium sulfate 2%~4%, carbon 5%~7% and ferrous sulfate 1%~3%, remaining is water；
The raw material chosen in a is sufficiently mixed by stirring, additive is made；
S2, raw material are chosen, and the bulk particulate matter of the additive and contaminated soil that prepare in S1 is chosen；
The bulk particulate matter of contaminated soil in S2 is screened, and is put into blender by S3, Raw material processing；
The additive prepared in water and S1 is added into blender by S4, reparation, and starting blender stirs certain time, make water and
Additive is sufficiently mixed with contaminated soil；
The material stirred evenly in S4 is put into disposition furnace and carries out vitrifying processing, to make dry materials by S5, dry glass
Vitrifying；
S6, detection detect the content of heavy metal in cured product in S5 according to ad hoc approach.
4. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 3,
It is characterized in that: in S1, the silica, borax, calcium hydroxide, metal-chelator, sodium carbonate, magnesium sulfate, carbon and institute
It is powdered for stating ferrous sulfate.
5. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 3,
Be characterized in that: in S1, the time of the additive preparation stirring is 5-10 minutes.
6. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 3,
Be characterized in that: in S4, the time of the blender stirring is 10-20 minutes.
7. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 3,
Be characterized in that: in S5, the vitrified temperature control of the disposition furnace 1050 DEG C~1350, the processing time for 35min~
75min。
8. the renovation technique of the vitrifying additive of a kind of pair of heavy metal pollution soil remediation according to claim 3,
Be characterized in that: in S6, the method for the detection is the measurement inductively coupled plasma of 22 kinds of metallic elements of solid waste
Body emission spectrometry HJ781-2016.
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| CN201811170375.7A CN109317508A (en) | 2018-10-09 | 2018-10-09 | The vitrifying additive and its renovation technique of a kind of pair of heavy metal pollution soil remediation |
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| CN201811170375.7A CN109317508A (en) | 2018-10-09 | 2018-10-09 | The vitrifying additive and its renovation technique of a kind of pair of heavy metal pollution soil remediation |
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|---|---|---|---|---|
| CN103586267A (en) * | 2013-11-05 | 2014-02-19 | 南京农业大学 | Method for immobilization of heavy metal in soil |
| CN105238409A (en) * | 2015-11-04 | 2016-01-13 | 北京高能时代环境技术股份有限公司 | Linkage stabilizing agent for repairing heavy metal contaminated soil and repairing method |
| CN105855276A (en) * | 2015-01-22 | 2016-08-17 | 郭信麟 | Treatment method for removing and stabilizing heavy metals in soil and repair agent |
| CN106244163A (en) * | 2016-08-04 | 2016-12-21 | 北京高能时代环境技术股份有限公司 | The reparation medicament of Compound Heavy Metals soil and methods for making and using same thereof |
-
2018
- 2018-10-09 CN CN201811170375.7A patent/CN109317508A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586267A (en) * | 2013-11-05 | 2014-02-19 | 南京农业大学 | Method for immobilization of heavy metal in soil |
| CN105855276A (en) * | 2015-01-22 | 2016-08-17 | 郭信麟 | Treatment method for removing and stabilizing heavy metals in soil and repair agent |
| CN105238409A (en) * | 2015-11-04 | 2016-01-13 | 北京高能时代环境技术股份有限公司 | Linkage stabilizing agent for repairing heavy metal contaminated soil and repairing method |
| CN106244163A (en) * | 2016-08-04 | 2016-12-21 | 北京高能时代环境技术股份有限公司 | The reparation medicament of Compound Heavy Metals soil and methods for making and using same thereof |
Non-Patent Citations (3)
| Title |
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| 德）康拉德•莱夫（KONRD REIF）主编；魏春源译: "《BOSCH 汽车工程手册》", 31 January 2016, 北京：北京理工大学出版社 * |
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