CN107868664A - A kind of lead-contaminated soil curing agent and preparation method thereof - Google Patents
A kind of lead-contaminated soil curing agent and preparation method thereof Download PDFInfo
- Publication number
- CN107868664A CN107868664A CN201710981098.7A CN201710981098A CN107868664A CN 107868664 A CN107868664 A CN 107868664A CN 201710981098 A CN201710981098 A CN 201710981098A CN 107868664 A CN107868664 A CN 107868664A
- Authority
- CN
- China
- Prior art keywords
- parts
- lead
- curing agent
- contaminated soil
- flyash
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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.)
- Pending
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- 239000002689 soil Substances 0.000 title claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 34
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 17
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 17
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 235000019691 monocalcium phosphate Nutrition 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 17
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 16
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 15
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims abstract description 13
- 235000019799 monosodium phosphate Nutrition 0.000 claims abstract description 13
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 10
- 239000011449 brick Substances 0.000 abstract description 5
- 238000004090 dissolution Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 231100000419 toxicity Toxicity 0.000 abstract description 4
- 230000001988 toxicity Effects 0.000 abstract description 4
- 238000005067 remediation Methods 0.000 abstract description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- -1 polyoxy Ethene Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000012272 crop production Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of lead-contaminated soil curing agent and preparation method thereof, belong to technical field of soil remediation.It is made up of the raw material of following parts by weight：10 20 parts of 20 40 parts of red mud, 10 30 parts of carbide slag, 15 25 parts of flyash, 5 15 parts of sodium dihydrogen phosphate, 10 20 parts of diatomite, 5 15 parts of calcium superphosphate and sodium sulfate of polyethenoxy ether of fatty alcohol.The invention also discloses the preparation method of above-mentioned lead-contaminated soil curing agent.The curing agent of the present invention not only reduces the dissolution of lead, lowers its biological effectiveness and endangers toxicity, reduces the migration of heavy metal and the enrichment in ecological chain, and is not rebounded with the time, can be used for the purposes such as roadbed brick, has economic and environment-friendly feature.
Description
Technical field
The present invention relates to a kind of lead-contaminated soil curing agent and preparation method thereof, belong to technical field of soil remediation.
Background technology
Heavy metal pollution of soil refers to that due to mankind's activity content of the minor metallic element in soil in soil exceedes
Background value, too high levels caused by excess deposition, is referred to as heavy metal pollution of soil.And farmland soil heavy metals pollution have it is huge
Big harmfulness, heavy metal in soil pollution can not only cause crop production reduction and quality decline, can also pass through soil-plant
System, enters people's human body through food chain, is detrimental to health and life security.Heavy metal pollution of soil has the hysteresis of disguised harm
Property, chronicity and biological chain heavy metal biological concentration the features such as, heavy metal pollution of soil is recognized if these decide
The serious consequence for being difficult to expect will be brought with hysteresis is administered.
Wherein lead-contaminated soil is more serious, and leaded soil not only influences edaphon, enzymatic activity and physicochemical property,
And meeting secondary pollution surface water and groundwater, and human health is endangered by food chain.Cause the main of Lead Pollution in Soil
Reason is attributed to coal-fired, industrial lead and vehicle exhaust etc..
In existing lead-contaminated soil reparation or method of disposal, after people's main target of interest at present makes disposal
The leaching of lead-contaminated soil lead is reduced to the index of people's requirement, namely is allowed to environmental sound, and lead-contaminated soil is realized
Research in terms of recycling is also seldom.
The content of the invention
An object of the present invention, it is to provide a kind of lead-contaminated soil curing agent.The curing agent of the present invention not only reduces lead
Dissolution, lower and its biological effectiveness and endanger toxicity, reduce the migration of heavy metal and the enrichment in ecological chain, and not with
Time and rebound, can be used for the purposes such as roadbed brick, there is economic and environment-friendly feature.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of lead-contaminated soil curing agent, by following weight
The raw material of number is made：Red mud 20-40 parts, carbide slag 10-30 parts, flyash 15-25 parts, sodium dihydrogen phosphate 5-15 parts, diatom
Native 10-20 parts, calcium superphosphate 5-15 parts and sodium sulfate of polyethenoxy ether of fatty alcohol 10-20 parts.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, it is made up of the raw material of following parts by weight：30 parts of red mud, 20 parts of carbide slag, 20 parts of flyash, di(2-ethylhexyl)phosphate
15 parts of 10 parts of hydrogen sodium, 15 parts of diatomite, 10 parts of calcium superphosphate and sodium sulfate of polyethenoxy ether of fatty alcohol.
Further, it is made up of the raw material of following parts by weight：20 parts of red mud, 30 parts of carbide slag, 15 parts of flyash, di(2-ethylhexyl)phosphate
10 parts of 15 parts of hydrogen sodium, 10 parts of diatomite, 15 parts of calcium superphosphate and sodium sulfate of polyethenoxy ether of fatty alcohol.
Further, it is made up of the raw material of following parts by weight：40 parts of red mud, 10 parts of carbide slag, 25 parts of flyash, di(2-ethylhexyl)phosphate
20 parts of 5 parts of hydrogen sodium, 20 parts of diatomite, 5 parts of calcium superphosphate and sodium sulfate of polyethenoxy ether of fatty alcohol.
The second object of the present invention, it is to put on the preparation method for stating lead-contaminated soil curing agent.The preparation method of the present invention
Simply, wide market, it is adapted to large-scale production.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of preparation method of lead-contaminated soil curing agent,
Comprise the following steps：Take the raw material of following parts by weight：Red mud 20-40 parts, carbide slag 10-30 parts, flyash 15-25 parts, phosphorus
Acid dihydride sodium 5-15 parts, diatomite 10-20 parts, calcium superphosphate 5-15 parts and sodium sulfate of polyethenoxy ether of fatty alcohol 10-20 parts, mix
After closing uniformly, packaging, that is, the lead-contaminated soil curing agent is obtained.
When the lead-contaminated soil curing agent of the present invention is applied to lead-contaminated soil disposal, 30% can be directly filled in soil
Left and right, after stirring, carry out spreading out and putting on compacting, be allowed to consolidate in a short time, or fragment of brick is made in pressurization.
The beneficial effects of the invention are as follows：
(1) curing agent of the invention not only reduces the dissolution of lead, lowers its biological effectiveness and endangers toxicity, reduces a huge sum of money
The migration of category and the enrichment in ecological chain, and do not rebounded with the time, it can be used for the purposes such as roadbed brick, there is economic ring
Guarantor's feature.
(2) each component of lead-contaminated soil fixative of the invention is commercial goods or industrial residue, cost of manufacture phase
To relatively low.
(3) preparation method of the invention is simple, wide market, is adapted to large-scale production.
Embodiment
The principle and feature of the present invention are described below in conjunction with specific embodiment, example is served only for explaining this hair
It is bright, it is not intended to limit the scope of the present invention.
Embodiment 1：
The lead-contaminated soil curing agent of the present embodiment, is made up of the raw material of following weight：Red mud 30kg, carbide slag 20kg,
Flyash 20kg, sodium dihydrogen phosphate 10kg, diatomite 15kg, calcium superphosphate 10kg and sodium sulfate of polyethenoxy ether of fatty alcohol
15kg。
The preparation method of above-mentioned lead-contaminated soil curing agent, comprises the following steps：Take the raw material of following weight：Red mud
30kg, carbide slag 20kg, flyash 20kg, sodium dihydrogen phosphate 10kg, diatomite 15kg, calcium superphosphate 10kg and fatty alcohol polyoxy
Ethene ether sodium sulfate 15kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil curing agent.
Embodiment 2：
The lead-contaminated soil curing agent of the present embodiment, is made up of the raw material of following weight：Red mud 20kg, carbide slag 30kg,
Flyash 15kg, sodium dihydrogen phosphate 15kg, diatomite 10kg, calcium superphosphate 15kg and sodium sulfate of polyethenoxy ether of fatty alcohol
10kg。
The preparation method of above-mentioned lead-contaminated soil curing agent, comprises the following steps：Take the raw material of following weight：Red mud
20kg, carbide slag 30kg, flyash 15kg, sodium dihydrogen phosphate 15kg, diatomite 10kg, calcium superphosphate 15kg and fatty alcohol polyoxy
Ethene ether sodium sulfate 10kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil curing agent.
Embodiment 3：
The lead-contaminated soil curing agent of the present embodiment, is made up of the raw material of following weight：Red mud 40kg, carbide slag 10kg,
Flyash 25kg, sodium dihydrogen phosphate 5kg, diatomite 20kg, calcium superphosphate 5kg and sodium sulfate of polyethenoxy ether of fatty alcohol 20kg.
The preparation method of above-mentioned lead-contaminated soil curing agent, comprises the following steps：Take the raw material of following weight：Red mud
40kg, carbide slag 10kg, flyash 25kg, sodium dihydrogen phosphate 5kg, diatomite 20kg, calcium superphosphate 5kg and fatty alcohol polyoxy second
Alkene ether sodium sulfate 20kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil curing agent.
Lead-contaminated soil curing agent obtained by embodiment 1-3 is used for lead-contaminated soil, it is specific as shown in table 1.
Lead-contaminated soil curing agent is used for the effect of lead-contaminated soil obtained by the embodiment 1-3 of table 1
As can be seen here, curing agent of the invention not only reduces the dissolution of lead, lowers its biological effectiveness and endangers toxicity, subtracts
The migration and the enrichment in ecological chain of few heavy metal, and do not rebounded with the time, it can be used for the purposes such as roadbed brick, have
Economic and environment-friendly feature.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (5)
1. a kind of lead-contaminated soil curing agent, it is characterised in that be made up of the raw material of following parts by weight：Red mud 20-40 parts, electricity
Rock ballast 10-30 parts, flyash 15-25 parts, sodium dihydrogen phosphate 5-15 parts, diatomite 10-20 parts, calcium superphosphate 5-15 parts and fat
Alcohol polyethenoxy ether sodium sulfate 10-20 parts.
2. a kind of lead-contaminated soil curing agent according to claim 1, it is characterised in that by the raw material of following parts by weight
It is made：30 parts of red mud, 20 parts of carbide slag, 20 parts of flyash, 10 parts of sodium dihydrogen phosphate, 15 parts of diatomite, 10 parts of calcium superphosphate and
15 parts of sodium sulfate of polyethenoxy ether of fatty alcohol.
3. a kind of lead-contaminated soil curing agent according to claim 1, it is characterised in that by the raw material of following parts by weight
It is made：20 parts of red mud, 30 parts of carbide slag, 15 parts of flyash, 15 parts of sodium dihydrogen phosphate, 10 parts of diatomite, 15 parts of calcium superphosphate and
10 parts of sodium sulfate of polyethenoxy ether of fatty alcohol.
4. a kind of lead-contaminated soil curing agent according to claim 1, it is characterised in that by the raw material of following parts by weight
It is made：40 parts of red mud, 10 parts of carbide slag, 25 parts of flyash, 5 parts of sodium dihydrogen phosphate, 20 parts of diatomite, 5 parts of calcium superphosphate and fat
20 parts of fat alcohol polyethenoxy ether sodium sulfate.
5. a kind of preparation method of lead-contaminated soil curing agent, it is characterised in that comprise the following steps：Take following parts by weight
Raw material：Red mud 20-40 parts, carbide slag 10-30 parts, flyash 15-25 parts, sodium dihydrogen phosphate 5-15 parts, diatomite 10-20 parts,
Calcium superphosphate 5-15 parts and sodium sulfate of polyethenoxy ether of fatty alcohol 10-20 parts, after being well mixed, packaging, that is, it is dirty to obtain the lead
Contaminate soil-solidified-agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981098.7A CN107868664A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil curing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981098.7A CN107868664A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil curing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107868664A true CN107868664A (en) | 2018-04-03 |
Family
ID=61752508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981098.7A Pending CN107868664A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil curing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107868664A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185980A (en) * | 2021-04-09 | 2021-07-30 | 太原理工大学 | Lead-polluted soil curing agent combining red mud, carbide slag and phosphogypsum and preparation method thereof |
| CN113637485A (en) * | 2021-09-03 | 2021-11-12 | 宁波交通工程建设集团有限公司 | Polymer liquid soil curing agent and production equipment thereof |
| CN114293418A (en) * | 2021-12-17 | 2022-04-08 | 深圳市中金岭南有色金属股份有限公司科学技术开发院 | Construction method and structure of red mud-based concrete pavement |
| CN114437728A (en) * | 2022-01-11 | 2022-05-06 | 中交三航局第八工程(湖南)有限公司 | Preparation method of repairing agent for fluorine pollution, prepared repairing agent and application thereof |
| CN114479874A (en) * | 2022-01-28 | 2022-05-13 | 山东大学 | Red mud-based heavy metal curing agent and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969363A (en) * | 2016-05-18 | 2016-09-28 | 北京建筑材料科学研究总院有限公司 | Lead polluted soil immobilized medicament and preparation method thereof |
-
2017
- 2017-10-20 CN CN201710981098.7A patent/CN107868664A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969363A (en) * | 2016-05-18 | 2016-09-28 | 北京建筑材料科学研究总院有限公司 | Lead polluted soil immobilized medicament and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185980A (en) * | 2021-04-09 | 2021-07-30 | 太原理工大学 | Lead-polluted soil curing agent combining red mud, carbide slag and phosphogypsum and preparation method thereof |
| CN113637485A (en) * | 2021-09-03 | 2021-11-12 | 宁波交通工程建设集团有限公司 | Polymer liquid soil curing agent and production equipment thereof |
| CN113637485B (en) * | 2021-09-03 | 2024-02-06 | 宁波交通工程建设集团有限公司 | Polymer liquid soil curing agent and production equipment thereof |
| CN114293418A (en) * | 2021-12-17 | 2022-04-08 | 深圳市中金岭南有色金属股份有限公司科学技术开发院 | Construction method and structure of red mud-based concrete pavement |
| CN114437728A (en) * | 2022-01-11 | 2022-05-06 | 中交三航局第八工程(湖南)有限公司 | Preparation method of repairing agent for fluorine pollution, prepared repairing agent and application thereof |
| CN114437728B (en) * | 2022-01-11 | 2023-09-29 | 中交三航局第八工程(湖南)有限公司 | Preparation method of restoration agent for fluorine pollution, prepared restoration agent and application of restoration agent |
| CN114479874A (en) * | 2022-01-28 | 2022-05-13 | 山东大学 | Red mud-based heavy metal curing agent and preparation method and application thereof |
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Application publication date: 20180403 |