CN104384179B - A kind of device and its restorative procedure of in-situ immobilization heavy metal in soil pollutant - Google Patents
A kind of device and its restorative procedure of in-situ immobilization heavy metal in soil pollutant Download PDFInfo
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- CN104384179B CN104384179B CN201410171864.XA CN201410171864A CN104384179B CN 104384179 B CN104384179 B CN 104384179B CN 201410171864 A CN201410171864 A CN 201410171864A CN 104384179 B CN104384179 B CN 104384179B
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 14
- 239000003802 soil pollutant Substances 0.000 title claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 49
- 239000002689 soil Substances 0.000 claims abstract description 34
- 238000009393 electroremediation Methods 0.000 claims abstract description 23
- 238000004064 recycling Methods 0.000 claims abstract description 11
- 230000008439 repair process Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 40
- 238000003860 storage Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000005684 electric field Effects 0.000 claims description 9
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- VKZRWSNIWNFCIQ-WDSKDSINSA-N (2s)-2-[2-[[(1s)-1,2-dicarboxyethyl]amino]ethylamino]butanedioic acid Chemical compound OC(=O)C[C@@H](C(O)=O)NCCN[C@H](C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-WDSKDSINSA-N 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 claims 1
- 239000000356 contaminant Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 19
- 239000002738 chelating agent Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention belongs to in-situ immobilizations by heavy-metal contaminated soil technical field, in particular to a kind of method and device of in-situ immobilization heavy metal in soil pollutant.Apparatus of the present invention are made of three Electroremediation system, heavy metal recovery system, electrode solution circulation recycling system parts.The present invention uses the restorative procedure and its device of in-situ immobilization heavy metal in soil pollutant, is conducive to improve the solubility of heavy metal contaminants in the soil, and reduce its ability for adhering to soil.Compared with traditional Electroremediation method, it is improved the advantage of heavy metal ion migration rate in the soil, to reduce repair time.
Description
Technical field
The invention belongs to in-situ immobilizations by heavy-metal contaminated soil technical field, in particular in a kind of in-situ immobilization soil
The method and device of heavy metal contaminants.
Background technique
Currently, carrying out the research of heavy metal in soil pollution amelioration to application chelating agent, chelating agent pair is on the one hand concentrated on
The chemical extraction rate or induction plant extract rate of heavy metal；On the other hand the residual and migration and possibility of chelating agent are primarily upon
Caused by soil and groundwater secondary pollution problem.Organic sequestering agent can be complexed with heavy metal in soil to be formed it is soluble organic
Metal complex, so as to improve the availability and mobility of heavy metal, therefore, chelating agent is widely used in heavy metal
In the Soil leaching reparation and induction phytoremediation of contaminated soil, has related patents for chelating agent and be applied to rehabilitating soil, but
It is the electrode solution that no patent is used as chelating agent Electroremediation method.[S, S]-ethylenediamine disuccinic acid (be abbreviated as [S,
S]-EDDS) it is a kind of strong metal chelating agent for being easy to be biodegradable, it receives significant attention in recent years.Present invention chelating agent
[S, S] ethylenediamine disuccinic acid ([S, S]-EDDS]) it is used as electrodynamic electrode solution, considerably increase the molten of heavy metal contaminants
Xie Du reduces the amount of heavy metal contaminants adherency in the soil, and electric power method processing heavy metal contaminants are effectively reduced
Time.Meanwhile [S, S]-EDDS remaining in soil can be decomposed by Soil Microorganism, not have secondary pollution to soil.
Summary of the invention
In order to overcome the shortcomings of in conventional art, the present invention provides a kind of in-situ immobilization heavy metal in soil pollutants
Method and device.
A kind of device of in-situ immobilization heavy metal in soil pollutant, by Electroremediation system, heavy metal recovery system,
Three parts of electrode solution circulation recycling system form；Electroremediation system includes anode chamber, cathode chamber, anode, cathode, electricity
Source transformer, anolyte storage box, catholyte storage box, anolyte transmission pump, catholyte transmission pump, anode monitor, cathode
Monitor；Heavy metal recovery system passes through anode recovery pipe, cathode the recovery pipe anode with Electroremediation system respectively
Room, cathode chamber are connected, and heavy metal recovery system is spread out of by anode recovery pipe, cathode recovery pipe, anode outflow pump, cathode
Pump, anode heavy metal recovery processing unit, cathode heavy metal recovery processing unit composition；Electrode solution circulation recycling system passes through
Anode heavy metal recovery processing unit is connected by return line with catholyte storage box；
In the Electroremediation system, anode chamber and cathode chamber are set to underground, and anode and cathode is inserted into anode respectively
Room and cathode chamber；The anode of power transformer is connected with anode, and the cathode of power transformer is connected with cathode；Anolyte storage box
In anode electrode liquid pumping Zhiyang pole room is transmitted by anolyte, the cathode electrode liquid in catholyte storage box passes through catholyte
Transmission is pumped to cathode chamber；Anode monitor and cathode monitor is respectively set in anode chamber and cathode chamber；
In the heavy metal recovery system, anode chamber is connected with anode outflow pump, anode recovery pipe, anode heavy metal return
Processing unit is received to be connected；The cathode chamber spreads out of pump, cathode recovery pipe, cathode heavy metal recovery processing unit phase with cathode
Even；Anode chamber is identical with the link position and connection relationship of cathode chamber；
In the electrode solution circulation recycling system, the electrode solution of anode heavy metal recovery processing unit recycling is after processing
Catholyte storage box is back to through return line.
A kind of method of in-situ immobilization heavy metal in soil pollutant, the specific steps of which are as follows:
(1) Electroremediation system is opened, anode electrode liquid and cathode electrode liquid are deployed: using sodium nitrate (NaNO3) make
For anode electrode liquid, concentration is 0.01mol/L ~ 0.05mol/L；Use [S, S]-ethylenediamine disuccinic acid trisodium (Na3-[S,
S]-EDDS) it is used as cathode electrode liquid, concentration is 0.1mol/L ~ 1mol/L；
(2) deployed anode electrode liquid and cathode electrode liquid are injected separately into electrode solution storage bin, open anolyte
Anode electrode liquid and cathode electrode liquid are injected separately into anode chamber and cathode chamber by transmission pump, catholyte transmission pump；Liquid is adjusted with pH
Cathode electrode liquid pH value is adjusted 8.0 ~ 9.0, anode electrode liquid pH value is adjusted 6.5 ~ 7.5, the cathode makes with anode
It is the NaOH solution that mass fraction is 1% and the HNO that mass fraction is 1% respectively that pH, which adjusts liquid,3Solution；
(3) it opens power transformer to be powered anode and cathode, DC electric field is formed in Polluted area, in direct current
Under the action of, Na3[S, S]-EDDS is decomposed into ([S, S]-EDDS)3-And Na+, wherein ([S, S]-EDDS)3-In electric field
It is entered under effect in contaminated by heavy metals soil and higher [metal-EDDS] with heavy metal formation dissolubilityn-Ion,
[metal-EDDS]-It is dynamic that ion continues Ghandler motion on the sunny side under the action of DC electric field；[metal-EDDS]n-Ion is finally enriched in sun
Polar region, not with ([S, S]-EDDS)3-The heavy metal ion that chelatropic reaction occurs can be enriched to yin under the action of DC electric field
Polar region；
(4) when anode monitor and cathode monitor monitor electrode solution in saturation state, stop Electroremediation system
System work, opens heavy metal recovery system, spreads out of pump respectively by the anode electrode liquid of anode chamber using anode outflow pump and cathode
It send with the extraction of the cathode electrode liquid of cathode chamber to corresponding heavy metal recovery processing unit and is handled；
(5) heavy metal recovery system is closed, Electroremediation system is opened, is transmitted using anolyte transmission pump and catholyte
New anode electrode liquid and cathode electrode liquid is perfused to anode chamber and cathode chamber respectively in pump, repeats above (1) to (4) step
Step；
(6) electrode solution of anode heavy metal recovery processing unit recycling is back to catholyte through return line after processing and deposits
Storage tank；
(7) after heavy metal concentration reaches processing target concentration in heavy metal recovery processing unit, in in-situ immobilization soil
The device of heavy metal contaminants is out of service.
In order to reduce the Electroremediation time, enhance Electroremediation effect, this method is arranged using yin, yang electrode gap
Method cathode electrode and anode electrode are arranged in contaminated by heavy metals soil region.Specific arrangement method is as shown in Figure 2.
The present invention has the advantages that
1, it joined metal-chelator [S, S]-EDDS on the basis of electrodynamic, be conducive to raising heavy metal contaminants and exist
Solubility in soil, and reduce its ability for adhering to soil.Compared with traditional Electroremediation method, it is improved heavy metal ion
The advantage of migration rate in the soil, to reduce repair time；
2, directly chelating agent [S, S]-EDDS has been added in catholyte, do not need to increase other medicine machines and
Injection well, equipment facilitate it is compact, it is simple and easy；
3, the present invention is suitable for the geological condition of a variety of conditions, smaller to contaminated soil secondary pollution.[S, S]-EDDS tool
There is stronger biodegradability, after the completion of processing, remaining [S, S]-EDDS in the soil can microorganism in the soil
It is decomposed under degradation, soil will not be caused to pollute for a long time, it is more environmentally friendly.
Detailed description of the invention
The contents of the present invention are described with reference to the drawings, Fig. 1 is the device of the invention structural schematic diagram, and Fig. 2 is contaminated soil area
Domain electrode arrangement schematic diagram.
Figure label: 101,201- anolyte storage box, catholyte storage box, 201,202- anolyte transmission pump, cathode
Liquid transmission pump, 301,302- anode outflow pump, cathode spread out of pump, 4- power transformer, 5- anode, 6- cathode, the anode chamber 7-, 8-
Cathode chamber, 901,902- anode monitor, cathode monitor, 1001,1002- anode heavy metal recovery processing unit, cathode weight
Metal recovery processing unit, 11- anode recovery pipe, 12- cathode recovery pipe, 13- contaminated by heavy metals soil region,
14- return line.
Specific embodiment
The present invention provides methods and dress that one kind [S, S]-EDDS strengthens Electroremediation heavy metal in soil pollutant
It sets, the present invention will be further described with reference to the accompanying drawings and detailed description.
Specific device arrangement is as shown in Figure 1.
For the direct current voltage used in example for 20V, chelating agent uses Na3- [S, S]-EDDS (C10H13N2Na3O8),
Concentration is 0.625mol/L, and electrode uses platinum material electrodes, it is usually required mainly for the heavy metal of processing is lead, and lead content is about in soil
It is 8.0 × 10-4mol/L.The main operational steps of example are as follows:
1, the Na of 0.625mol/L is prepared3[S, S]-EDDS solution, and be loaded into catholyte storage bin (201),
Prepare the NaNO of 0.01mol/L3Solution, and be loaded into anolyte storage bin (101)；
2, anolyte transmission pump (201), catholyte transmission pump (202) are opened, are divided into anode chamber (7) and cathode chamber (8)
It is not passed through anolyte, catholyte；After electrode solution fills anode chamber (7) and cathode chamber (8), the NaOH solution for being 1% with mass fraction
The HNO for being 1% with mass fraction3Solution adjusts electrode solution pH value, adjusts the pH value of catholyte to 8.0, makes the pH value of anolyte
It adjusts to 7.0；
3, it opens power transformer (4) anode (5) and cathode (6) is powered, handle the heavy metal lead pollution in soil
Object.When anode monitor and cathode monitor monitor electrode solution in saturation state, stops the work of Electroremediation system, open
Heavy metal recovery system is opened, the anode electrode liquid and cathode electrode liquid of anode chamber and cathode chamber are extracted out respectively and sent to an anode huge sum of money
Belong in recyclable device (1001) and cathode heavy metal collection system (1002)；
4, heavy metal recovery system is closed, Electroremediation system is opened, passes anolyte transmission pump (201) and catholyte
New anode electrode liquid and cathode electrode liquid is perfused in defeated pump (202) to anode chamber (7) and cathode chamber (8) respectively, repeats above the
One to third step the step of；
5, the electrode solution of anode heavy metal recovery processing unit recycling is back to cathode through return line (14) after processing
Liquid storage box (201)；
6, when electric power processing accumulated time reach 480 it is small when after, stop be powered, terminate soil remediation process；
7, after treatment, the content of heavy metal lead in soil is about 7 × 10-5Mol/L, this method processing is native as the result is shown
The effect of heavy metal lead pollution is up to 91% in earth.
Claims (3)
1. a kind of device of in-situ immobilization heavy metal in soil pollutant, it is characterised in that: the device by Electroremediation system,
Three heavy metal recovery system, electrode solution circulation recycling system parts form；Electroremediation system includes anode chamber, cathode
Room, anode, cathode, power transformer, anolyte storage box, catholyte storage box, anolyte transmission pump, catholyte transmission pump,
Anode monitor, cathode monitor；Heavy metal recovery system by anode recovery pipe, cathode recovery pipe respectively with electric power
The anode chamber of repair system, cathode chamber are connected, and heavy metal recovery system is passed by anode recovery pipe, cathode recovery pipe, anode
Pump, cathode outflow pump, anode heavy metal recovery processing unit, cathode heavy metal recovery processing unit composition out；Electrode solution circulation
Anode heavy metal recovery processing unit is connected by reutilization system by return line with catholyte storage box；
In the Electroremediation system, anode chamber and cathode chamber are set to underground, anode and cathode be inserted into respectively anode chamber with
Cathode chamber；The anode of power transformer is connected with anode, and the cathode of power transformer is connected with cathode；In anolyte storage box
Anode electrode liquid transmits pumping Zhiyang pole room by anolyte, and the cathode electrode liquid in catholyte storage box is transmitted by catholyte
It is pumped to cathode chamber；Anode monitor and cathode monitor is respectively set in anode chamber and cathode chamber；
In the heavy metal recovery system, anode chamber is connected, at anode recovery pipe, anode heavy metal recovery with anode outflow pump
Device is managed to be connected；The cathode chamber is connected with cathode outflow pump, cathode recovery pipe, cathode heavy metal recovery processing unit；Sun
Pole room is identical with the link position and connection relationship of cathode chamber；
In the electrode solution circulation recycling system, the electrode solution of anode heavy metal recovery processing unit recycling passes through back after processing
Flow tube road is back to catholyte storage box.
2. a kind of apply a kind of reparation side of the device of in-situ immobilization heavy metal in soil pollutant as described in claim 1
Method, which is characterized in that specific step is as follows:
(1) Electroremediation system is opened, anode electrode liquid and cathode electrode liquid are deployed: using sodium nitrate (NaNO3) as sun
Pole electrode solution, concentration are 0.01mol/L ~ 0.05mol/L；Use [S, S]-ethylenediamine disuccinic acid trisodium (Na3-[S,S]-
EDDS it) is used as cathode electrode liquid, concentration is 0.1mol/L ~ 1mol/L；
(2) deployed anode electrode liquid and cathode electrode liquid are injected separately into electrode solution storage bin, open anolyte transmission
Anode electrode liquid and cathode electrode liquid are injected separately into anode chamber and cathode chamber by pump, catholyte transmission pump；Adjusting liquid with pH will be negative
Pole electrode solution pH value is adjusted 8.0 ~ 9.0, and anode electrode liquid pH value is adjusted 6.5 ~ 7.5, what the cathode and anode used
It is the NaOH solution that mass fraction is 1% and the HNO that mass fraction is 1% respectively that pH, which adjusts liquid,3Solution；
(3) it opens power transformer to be powered anode and cathode, DC electric field is formed in Polluted area, in DC electric field
Under effect, Na3[S, S]-EDDS is decomposed into ([S, S]-EDDS)3-And Na+, wherein ([S, S]-EDDS)3-In the effect of electric field
Under enter in contaminated by heavy metals soil and to form dissolubility with heavy metal higher [metal-EDDS]n-Ion, [metal-
EDDS]n-It is dynamic that ion continues Ghandler motion on the sunny side under the action of DC electric field；[metal-EDDS]n-Ion is finally enriched in anode region,
Not with ([S, S]-EDDS)3-The heavy metal ion that chelatropic reaction occurs can be enriched to cathodic region under the action of DC electric field；
(4) when anode monitor and cathode monitor monitor electrode solution in saturation state, stop Electroremediation system work
Make, open heavy metal recovery system, using anode outflow pump with cathode outflow pump respectively by the anode electrode liquid of anode chamber and yin
The cathode electrode liquid extraction of pole room, which is sent to corresponding heavy metal recovery processing unit, to be handled；
(5) heavy metal recovery system is closed, Electroremediation system is opened, uses anolyte transmission pump and catholyte transmission pump point
New anode electrode liquid and cathode electrode liquid is not perfused to anode chamber and cathode chamber, repeats the step of above (1) to (4) step
Suddenly；
(6) electrode solution of anode heavy metal recovery processing unit recycling is back to catholyte storage through return line after processing
Case；
(7) after heavy metal concentration reaches processing target concentration in heavy metal recovery processing unit, a huge sum of money in in-situ immobilization soil
The device for belonging to pollutant is out of service.
3. restorative procedure as claimed in claim 2, which is characterized in that in order to reduce the Electroremediation time, enhance electric power
Cathode electrode and anode electrode are arranged in contaminated by heavy metals by repairing effect using the method for yin, yang electrode gap arrangement
Soil region.
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| CN105817474B (en) * | 2016-03-21 | 2019-04-09 | 玉溪师范学院 | A kind of device and methods and applications of rehabilitating soil combined pollution |
| CN108128856B (en) * | 2018-02-05 | 2019-06-04 | 中国矿业大学 | Utilize the system of principle of electrophoresis control goaf filling weight metal transport |
| CN108723075A (en) * | 2018-05-18 | 2018-11-02 | 青岛理工大学 | Heavy metal contaminated soil solar electric restoration device |
| CN110586640B (en) * | 2019-10-26 | 2022-07-12 | 重庆道润土壤修复有限责任公司 | Method for removing and recovering heavy metals in polluted soil |
| CN112808756A (en) * | 2020-08-13 | 2021-05-18 | 深圳市豪科园林有限公司 | Soil restoration structure suitable for flowering plants and construction method |
| CN114378111A (en) * | 2021-11-30 | 2022-04-22 | 西安建筑科技大学 | Device and method for removing loess heavy metal pollution based on electrodynamics and mineralogy |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695834A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for restoring soil polluted by heavy metal |
| KR20060036961A (en) * | 2004-10-27 | 2006-05-03 | 한상재 | Development of electrode compartment for enhanced electrokinetic remediation and post-treatment of waste water |
| CN101698521A (en) * | 2009-11-17 | 2010-04-28 | 重庆大学 | Method for electrically restoring soil and underground water |
| KR101034265B1 (en) * | 2008-07-28 | 2011-05-16 | 한국전기연구원 | High efficiency electrokinetic soil recovery system using the reactive mat |
| CN102513348A (en) * | 2011-12-15 | 2012-06-27 | 中国科学院南京土壤研究所 | Electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil |
| JP2013104786A (en) * | 2011-11-14 | 2013-05-30 | Showa Denko Kk | Method for treating soil contaminated by radioactive cesium |
| CN103286120A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Microwave electric soil in-situ restoration device and restoration method |
| CN203380185U (en) * | 2013-07-18 | 2014-01-08 | 江南大学 | Device for restoring polluted soil by using electrodynamic force |
-
2014
- 2014-04-28 CN CN201410171864.XA patent/CN104384179B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060036961A (en) * | 2004-10-27 | 2006-05-03 | 한상재 | Development of electrode compartment for enhanced electrokinetic remediation and post-treatment of waste water |
| CN1695834A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for restoring soil polluted by heavy metal |
| KR101034265B1 (en) * | 2008-07-28 | 2011-05-16 | 한국전기연구원 | High efficiency electrokinetic soil recovery system using the reactive mat |
| CN101698521A (en) * | 2009-11-17 | 2010-04-28 | 重庆大学 | Method for electrically restoring soil and underground water |
| JP2013104786A (en) * | 2011-11-14 | 2013-05-30 | Showa Denko Kk | Method for treating soil contaminated by radioactive cesium |
| CN102513348A (en) * | 2011-12-15 | 2012-06-27 | 中国科学院南京土壤研究所 | Electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil |
| CN103286120A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Microwave electric soil in-situ restoration device and restoration method |
| CN203380185U (en) * | 2013-07-18 | 2014-01-08 | 江南大学 | Device for restoring polluted soil by using electrodynamic force |
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