CN110328225A - A kind of mercury contaminated soil restorative procedure reducing volatile mercury release iron - Google Patents
A kind of mercury contaminated soil restorative procedure reducing volatile mercury release iron Download PDFInfo
- Publication number
- CN110328225A CN110328225A CN201810859695.7A CN201810859695A CN110328225A CN 110328225 A CN110328225 A CN 110328225A CN 201810859695 A CN201810859695 A CN 201810859695A CN 110328225 A CN110328225 A CN 110328225A
- Authority
- CN
- China
- Prior art keywords
- mercury
- soil
- contaminated soil
- release iron
- restorative procedure
- Prior art date
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The invention discloses a kind of mercury contaminated soil restorative procedures for reducing contaminated soil volatile mercury release iron, comprising the following steps: step 1 arranges polluted agricultural land, is subdivided into several identical small fields, is separated between each small field by film；Step 2, Xiang Ge little field investment is used for the passivator and combinations thereof of rehabilitating soil, and is uniformly mixed, and stablizes 10 days or more；The present invention can significantly reduce the release iron of polluted agricultural land volatile mercury using the mercury in the fixed-contaminations soil such as chemical bond, the suction-operated of passivator and mercury, reduce Mercury In The Air contamination hazard.
Description
Technical field
The present invention relates to a kind of mercury contaminated soil restorative procedures for reducing contaminated soil volatile mercury release iron, belong to agriculture
Field soil remediation Treatment process field.
Background technique
Mercury (Hg) is one of strongest heavy metal element of environment Poisoning, main due to special physicochemical properties
It is present in atmosphere with gas phase, and this gaseous mercury may participate in atmospheric air circulation, carries out long distance transmission and become the whole world
Contact scar object.On the other hand, this gaseous mercury can also be accumulated in the crops such as vegetables by the respiration of blade, into
Enter food chain, grave danger is generated to the health of resident.The source of Mercury In The Air includes natural source and artificial source, wherein quilt
The mercury volatilization of contaminated soil is wherein one of source.Currently, to the environmental behaviour of gaseous state mercury pollution, feature, rule and harm
There is extensive and in-depth research, but also quite insufficient to the correlative study for reducing and solving gaseous state mercury pollution, it is a large amount of to study
Need of work is carried out in a deep going way.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of mercury pollution for reducing contaminated soil volatile mercury release iron
Soil remediation method, this method is using in the fixed-contaminations soil such as chemical bond, the suction-operated of passivator and heavy metal Hg
Mercury, achieve the purpose that reduce contaminated soil volatile mercury release iron, to overcome the shortcomings of the prior art.
The technical scheme is that a kind of mercury contaminated soil restorative procedure for reducing volatile mercury release iron, including
Following steps:
Step 1 arranges polluted agricultural land, is subdivided into several identical small fields, by film between each small field
Separate；
Step 2, Xiang Ge little field investment is used for the passivator and combinations thereof of rehabilitating soil, and is uniformly mixed, and stablizes 10
It is above.
Described passivator and combinations thereof is in bentonite, ammonium dihydrogen phosphate, sodium selenite, charcoal and ATS (Ammonium thiosulphate)
One of or any several combination.
The passivator and combinations thereof input amount are as follows: 0.5~3kg/m2。
The small field is 1m × 1m × 0.1m square.
By adopting the above-described technical solution, compared with prior art, the present invention is made using the chemical bond of passivator and mercury
With the mercury in the fixed-contaminations soil such as, suction-operated, the release iron of polluted agricultural land volatile mercury can be significantly reduced, reduces atmosphere
Mercury pollution harm.The method of the present invention is simple, is easily achieved and is widely applied, and has broad application prospects and practical value.
Detailed description of the invention
Fig. 1 is correlativity of the embodiment 1 in wherein a period of time and soil mercury flux；
Fig. 2 is correlativity of the embodiment 1 in another a period of time and soil mercury flux；
Fig. 3 is correlativity of the embodiment 2 in wherein a period of time and soil mercury flux；
Fig. 4 is correlativity of the embodiment 2 in another a period of time and soil mercury flux；
Fig. 5 is correlativity of the embodiment 3-5 in wherein a period of time and soil mercury flux；
In attached drawing: CK indicates the soil for not doing any processing in figure；P+P indicates to add the soil of bentonite and diammonium hydrogen phosphate
Earth；Na2SeO3Expression adds Na2SeO3Soil；0.5%C, 1%C and 2%C respectively indicate charcoal and soil ratio；Flux
Indicate soil mercury flux, wherein honest representative discharges, negative value represents sedimentation；Date represents the date.
Specific embodiment
Invention is described further below with reference to embodiment:
Embodiment 1
Arrangement piecemeal is carried out to polluted agricultural land, is subdivided into 10 pieces of small fields of 1m × 1m × 0.1m square, each field
Between separated by plastic film, prevent cross contamination；Then, one small field puts into 2.1kg bentonite and 0.35kg thereto
Bentonite and diammonium hydrogen phosphate are uniformly mixed with soil, stablize 10 days or more by diammonium hydrogen phosphate, are connected using dynamics flux box
Connect the release iron of atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury.
Embodiment 2
One small field into embodiment 1 puts into 1.4kg sodium selenite, sodium selenite and soil is uniformly mixed, surely
10 days or more fixed, the release using dynamics flux box connection atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury is logical
Amount.
Embodiment 3
One small field into embodiment 1 puts into 0.5kg charcoal, and charcoal and soil are uniformly mixed, stablize 10
More than it, using the release iron of dynamics flux box connection atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury.
Embodiment 4
One small field into embodiment 1 puts into 1kg charcoal, and charcoal and soil are uniformly mixed, stablized 10 days
More than, using the release iron of dynamics flux box connection atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury.
Embodiment 5
One small field into embodiment 1 puts into 2kg charcoal, and charcoal and soil are uniformly mixed, stablized 10 days
More than, using the release iron of dynamics flux box connection atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury.
Embodiment 6
One small field into embodiment 1 puts into 2kg ATS (Ammonium thiosulphate), and ATS (Ammonium thiosulphate) and soil are uniformly mixed,
Stablize 10 days or more, using the release of dynamics flux box connection atmosphere mercury vapourmeter real-time monitoring polluted farmland soil volatile mercury
Flux.
Comparative example 1:
Dynamics flux box connection atmosphere mercury vapourmeter is placed directly in a small field in embodiment 1, real-time monitoring is dirty
Contaminate the release iron of agricultural land soil volatile mercury.
Comparing result
It can be seen that the soil for adding bentonite and diammonium hydrogen phosphate by Fig. 1 and Fig. 2, soil mercury flux was in 2017
May 31 28 days~2017 May and 2017 on September on September 23rd, 21,1 reduce 15.7% and 61.4% respectively；
It can be seen that by Fig. 3 and Fig. 4 and apply Na2SeO3In on May 31,28 days~2017 May in 2017 and September 21 days~2017 in 2017
On September 23, soil mercury emission fluxes reduce 110.0% and 79.4% respectively；Apply 3 ratio charcoals as seen from Figure 5 to exist
1 day~2017 June in 2017, on June 3, soil mercury emission flux reduced 29.6%, 19.9% and 16.7% respectively.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (4)
1. a kind of mercury contaminated soil restorative procedure for reducing volatile mercury release iron, which comprises the following steps:
Step 1 arranges polluted agricultural land, is subdivided into several identical small fields, is divided between each small field by film
Every；
Step 2, Xiang Ge little field investment are used for the passivator and combinations thereof of rehabilitating soil, and are uniformly mixed, stablize 10 days with
It is upper.
2. the mercury contaminated soil restorative procedure according to claim 1 for reducing volatile mercury release iron, it is characterised in that:
Described passivator and combinations thereof is wherein one in bentonite, ammonium dihydrogen phosphate, sodium selenite, charcoal and ATS (Ammonium thiosulphate)
Kind or any several combination.
3. the mercury contaminated soil restorative procedure according to claim 1 for reducing volatile mercury release iron, it is characterised in that:
The passivator and combinations thereof input amount are as follows: 0.5~3kg/m2。
4. the mercury contaminated soil restorative procedure according to claim 1 for reducing volatile mercury release iron, it is characterised in that:
The small field is 1m × 1m × 0.1m square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859695.7A CN110328225A (en) | 2018-08-01 | 2018-08-01 | A kind of mercury contaminated soil restorative procedure reducing volatile mercury release iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859695.7A CN110328225A (en) | 2018-08-01 | 2018-08-01 | A kind of mercury contaminated soil restorative procedure reducing volatile mercury release iron |
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| Publication Number | Publication Date |
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| CN110328225A true CN110328225A (en) | 2019-10-15 |
Family
ID=68139503
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810859695.7A Pending CN110328225A (en) | 2018-08-01 | 2018-08-01 | A kind of mercury contaminated soil restorative procedure reducing volatile mercury release iron |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205870A (en) * | 2020-02-28 | 2020-05-29 | 江苏省地质调查研究院 | Passivator and application thereof in repairing moderate and light mercury polluted farmland soil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103834409A (en) * | 2014-01-10 | 2014-06-04 | 中国科学院地球化学研究所 | Passivating agent for mercury-polluted soil remediation |
| CN104041362A (en) * | 2014-05-13 | 2014-09-17 | 农业部环境保护科研监测所 | Method for safely producing rice in rice field with serious Cd pollution |
| CN105598145A (en) * | 2016-03-28 | 2016-05-25 | 郑州航空工业管理学院 | In-situ remediation method of mercury polluted soil |
| CN106635031A (en) * | 2016-11-18 | 2017-05-10 | 广州南大环保科技有限公司 | Remediation agent for heavy metal contaminated soil and preparation method of remediation agent |
-
2018
- 2018-08-01 CN CN201810859695.7A patent/CN110328225A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834409A (en) * | 2014-01-10 | 2014-06-04 | 中国科学院地球化学研究所 | Passivating agent for mercury-polluted soil remediation |
| CN104041362A (en) * | 2014-05-13 | 2014-09-17 | 农业部环境保护科研监测所 | Method for safely producing rice in rice field with serious Cd pollution |
| CN105598145A (en) * | 2016-03-28 | 2016-05-25 | 郑州航空工业管理学院 | In-situ remediation method of mercury polluted soil |
| CN106635031A (en) * | 2016-11-18 | 2017-05-10 | 广州南大环保科技有限公司 | Remediation agent for heavy metal contaminated soil and preparation method of remediation agent |
Non-Patent Citations (1)
| Title |
|---|
| 环境保护部自然生态保护司编: "《土壤污染与人体健康》", 31 January 2013, 中国环境科学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205870A (en) * | 2020-02-28 | 2020-05-29 | 江苏省地质调查研究院 | Passivator and application thereof in repairing moderate and light mercury polluted farmland soil |
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Application publication date: 20191015 |