CN107739615A - A kind of lead-contaminated soil renovation agent and preparation method thereof - Google Patents
A kind of lead-contaminated soil renovation agent and preparation method thereof Download PDFInfo
- Publication number
- CN107739615A CN107739615A CN201710997036.5A CN201710997036A CN107739615A CN 107739615 A CN107739615 A CN 107739615A CN 201710997036 A CN201710997036 A CN 201710997036A CN 107739615 A CN107739615 A CN 107739615A
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- parts
- lead
- contaminated soil
- renovation agent
- soil renovation
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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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- 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
- C09K2103/00—Civil engineering use
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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 discloses a kind of lead-contaminated soil renovation 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：5 15 parts of 30 50 parts of chitosan, 20 40 parts of carbide slag, 5 15 parts of flyash, 10 20 parts of sodium dihydrogen phosphate, 5 15 parts of diatomite, 10 20 parts of gangue and APES.The invention also discloses the preparation method of above-mentioned lead-contaminated soil renovation 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 renovation 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 renovation 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 renovation agent, by following weight
The raw material of number is made：Chitosan 30-50 parts, carbide slag 20-40 parts, flyash 5-15 parts, sodium dihydrogen phosphate 10-20 parts, silicon
Diatomaceous earth 5-15 parts, gangue 10-20 parts and APES 5-15 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：40 parts of chitosan, 30 parts of carbide slag, 10 parts of flyash, phosphoric acid
10 parts of 15 parts of sodium dihydrogen, 10 parts of diatomite, 15 parts of gangue and APES.
Further, it is made up of the raw material of following parts by weight：30 parts of chitosan, 40 parts of carbide slag, 5 parts of flyash, phosphoric acid
5 parts of 20 parts of sodium dihydrogen, 5 parts of diatomite, 20 parts of gangue and APES.
Further, it is made up of the raw material of following parts by weight：50 parts of chitosan, 20 parts of carbide slag, 15 parts of flyash, phosphoric acid
15 parts of 10 parts of sodium dihydrogen, 15 parts of diatomite, 10 parts of gangue and APES.
The second object of the present invention, it is to put on the preparation method for stating lead-contaminated soil renovation 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 renovation agent,
Comprise the following steps：Take the raw material of following parts by weight：Chitosan 30-50 parts, carbide slag 20-40 parts, flyash 5-15 parts, phosphorus
Acid dihydride sodium 10-20 parts, diatomite 5-15 parts, gangue 10-20 parts and APES 5-15 parts, it is well mixed
Afterwards, pack, that is, obtain the lead-contaminated soil renovation agent.
When the lead-contaminated soil renovation 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 renovation agent of the present embodiment, is made up of the raw material of following weight：Chitosan 40kg, carbide slag
30kg, flyash 10kg, sodium dihydrogen phosphate 15kg, diatomite 10kg, gangue 15kg and APES 10kg.
The preparation method of above-mentioned lead-contaminated soil renovation agent, comprises the following steps：Take the raw material of following weight：Chitosan
40kg, carbide slag 30kg, flyash 10kg, sodium dihydrogen phosphate 15kg, diatomite 10kg, gangue 15kg and alkyl phenol polyoxy second
Alkene ether 10kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil renovation agent.
Embodiment 2：
The lead-contaminated soil renovation agent of the present embodiment, is made up of the raw material of following weight：Chitosan 30kg, carbide slag
40kg, flyash 5kg, sodium dihydrogen phosphate 20kg, diatomite 5kg, gangue 20kg and APES 5kg.
The preparation method of above-mentioned lead-contaminated soil renovation agent, comprises the following steps：Take the raw material of following weight：Chitosan
30kg, carbide slag 40kg, flyash 5kg, sodium dihydrogen phosphate 20kg, diatomite 5kg, gangue 20kg and alkylphenol-polyethenoxy
Ether 5kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil renovation agent.
Embodiment 3：
The lead-contaminated soil renovation agent of the present embodiment, is made up of the raw material of following weight：Chitosan 50kg, carbide slag
20kg, flyash 15kg, sodium dihydrogen phosphate 10kg, diatomite 15kg, gangue 10kg and APES 15kg.
The preparation method of above-mentioned lead-contaminated soil renovation agent, comprises the following steps：Take the raw material of following weight：Chitosan
50kg, carbide slag 20kg, flyash 15kg, sodium dihydrogen phosphate 10kg, diatomite 15kg, gangue 10kg and alkyl phenol polyoxy second
Alkene ether 15kg, after being well mixed, packaging, that is, obtain the lead-contaminated soil renovation agent.
Lead-contaminated soil renovation agent obtained by embodiment 1-3 is used for lead-contaminated soil, it is specific as shown in table 1.
Lead-contaminated soil renovation 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 renovation agent, it is characterised in that be made up of the raw material of following parts by weight：Chitosan 30-50 parts,
Carbide slag 20-40 parts, flyash 5-15 parts, sodium dihydrogen phosphate 10-20 parts, diatomite 5-15 parts, gangue 10-20 parts and alkyl
Phenol polyethenoxy ether 5-15 parts.
2. a kind of lead-contaminated soil renovation 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 chitosan, 30 parts of carbide slag, 10 parts of flyash, 15 parts of sodium dihydrogen phosphate, 10 parts of diatomite, 15 parts of gangue and
10 parts of APES.
3. a kind of lead-contaminated soil renovation 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 chitosan, 40 parts of carbide slag, 5 parts of flyash, 20 parts of sodium dihydrogen phosphate, 5 parts of diatomite, 20 parts of gangue and alkane
5 parts of base phenol polyethenoxy ether.
4. a kind of lead-contaminated soil renovation agent according to claim 1, it is characterised in that by the raw material of following parts by weight
It is made：50 parts of chitosan, 20 parts of carbide slag, 15 parts of flyash, 10 parts of sodium dihydrogen phosphate, 15 parts of diatomite, 10 parts of gangue and
15 parts of APES.
5. a kind of preparation method of lead-contaminated soil renovation agent, it is characterised in that comprise the following steps：Take following parts by weight
Raw material：Chitosan 30-50 parts, carbide slag 20-40 parts, flyash 5-15 parts, sodium dihydrogen phosphate 10-20 parts, diatomite 5-15 parts,
Gangue 10-20 parts and APES 5-15 parts, after being well mixed, packaging, that is, obtain the lead-contaminated soil and repair
Multiple agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997036.5A CN107739615A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil renovation agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997036.5A CN107739615A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil renovation agent and preparation method thereof |
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| CN107739615A true CN107739615A (en) | 2018-02-27 |
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| CN201710997036.5A Pending CN107739615A (en) | 2017-10-20 | 2017-10-20 | A kind of lead-contaminated soil renovation agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040771A (en) * | 2019-12-07 | 2020-04-21 | 重庆市固体废物管理服务中心有限公司 | Site-contaminated soil ex-situ remediation agent and application method thereof |
| CN111073658A (en) * | 2019-11-21 | 2020-04-28 | 河北建设集团安装工程有限公司 | Heavy metal contaminated soil remediation 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 CN201710997036.5A patent/CN107739615A/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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073658A (en) * | 2019-11-21 | 2020-04-28 | 河北建设集团安装工程有限公司 | Heavy metal contaminated soil remediation agent and preparation method and application thereof |
| CN111040771A (en) * | 2019-12-07 | 2020-04-21 | 重庆市固体废物管理服务中心有限公司 | Site-contaminated soil ex-situ remediation agent and application method thereof |
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Application publication date: 20180227 |