CN203370805U - Improved in-situ repairing device for polluted soil - Google Patents
Improved in-situ repairing device for polluted soil Download PDFInfo
- Publication number
- CN203370805U CN203370805U CN201320447408.4U CN201320447408U CN203370805U CN 203370805 U CN203370805 U CN 203370805U CN 201320447408 U CN201320447408 U CN 201320447408U CN 203370805 U CN203370805 U CN 203370805U
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- Prior art keywords
- cathode
- chamber
- porous polyethylene
- polyethylene plate
- anode
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- 239000002689 soil Substances 0.000 title claims abstract description 39
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 34
- 239000004698 Polyethylene (PE) Substances 0.000 claims abstract description 27
- -1 polyethylene Polymers 0.000 claims abstract description 27
- 229920000573 polyethylene Polymers 0.000 claims abstract description 27
- 239000003792 electrolyte Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 11
- 150000001768 cations Chemical class 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- NSTASKGZCMXIET-UHFFFAOYSA-N Iridium(IV) oxide Chemical compound [O-2].[O-2].[Ir+4] NSTASKGZCMXIET-UHFFFAOYSA-N 0.000 claims description 5
- HTXDPTMKBJXEOW-UHFFFAOYSA-N iridium(IV) oxide Inorganic materials O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 claims description 5
- 229920000128 polypyrrole Polymers 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006213 oxygenation reaction Methods 0.000 abstract description 3
- 239000003053 toxin Substances 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 1
- 230000003204 osmotic Effects 0.000 abstract 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 231100000086 high toxicity Toxicity 0.000 description 5
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical group [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000002588 toxic Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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Abstract
The utility model relates to an improved in-situ repairing device for polluted soil. The improved in-situ repairing device comprises a direct-current power supply, an anode bar and a cathode bar, wherein the anode bar and the cathode bar are inserted into an anode chamber and a cathode chamber with electrolyte respectively; a first porous polyethylene plate is arranged outside the anode chamber and a second porous polyethylene plate is arranged outside the cathode chamber; heavy-metal adsorption materials are arranged beside the first porous polyethylene plate and the second porous polyethylene plate; a cation selective osmotic membrane is arranged outside the cathode chamber; the in-situ repairing device for the polluted soil further comprises an oxygenation pump; an air outlet pipe of the oxygenation pump stretches into the electrolyte in the cathode chamber. The device is simple in structure, good in treating effect, and is efficient and practical; heavy-metal ions in the polluted soil can be adsorbed and transferred at the in-situ state and parts of high-toxin heavy-metal ions are reduced into low-toxin low-pollution heavy-metal ions, so that the environmental risk of secondary pollution is reduced greatly.
Description
Technical field
The utility model relates to a kind of improvement contaminated soil in-situ repairing.
Background technology
Along with the fast development of economic society, the scale of urban construction constantly enlarges, and the heavy metal pollution of soil caused by human activities such as sewage irrigation, the uses of heavy metal goods is day by day serious.There are some researches show, the heavy metal elements such as cadmium, lead can be absorbed enrichment by crops, through food chain, health have been formed to potential threat.
In recent years, the recovery technique of relevant heavy metal pollution of soil develops to some extent both at home and abroad, but still there is significant limitation at aspects such as processing cost, treatment effect and environmental risks, the part technology can only shift heavy metal adsorption, especially part high toxicity heavy metal ion, and fail to reduce its toxicity, easily cause secondary pollution.
The utility model content
The technical problems to be solved in the utility model is: overcomes the deficiencies in the prior art, a kind of improvement contaminated soil in-situ repairing is provided, and simple in structure, realize the original position reparation to contaminated soil, and the secondary pollution that can avoid electrolyte to bring.
The utility model solves the technical scheme that its technical problem adopts: a kind of improvement contaminated soil in-situ repairing, the anode stub and the cathode bar that is connected to DC power cathode that comprise dc source and be connected to DC power anode, described anode stub inserts in the anode chamber with electrolyte, cathode bar inserts in the cathode chamber with electrolyte, the side be positioned at outside anode chamber towards cathode chamber is provided with the first porous polyethylene plate, be positioned at the outer side towards anode chamber of cathode chamber and be provided with the second porous polyethylene plate, form the reparation district of heavy-metal contaminated soil between described the first porous polyethylene plate and the second porous polyethylene plate, be provided with the heavy metal adsorption material between described the first porous polyethylene plate and anode chamber, be provided with the heavy metal adsorption material between described the second porous polyethylene plate and cathode chamber, be provided with the cation permselective diaphragm be covered on the cathode chamber outer wall between heavy metal adsorption material and cathode chamber,
Described contaminated soil in-situ repairing also comprises oxygen increasing pump, and the escape pipe of described oxygen increasing pump stretches in the electrolyte of cathode chamber.
Apparatus structure is simple, form a simple soil restoring device by dc source, anode stub, cathode bar and two blocks of porous polyethylene plates etc., so this device just because of simple in structure use more flexible, can be in the situation that not mobile contaminated soil, directly soil restoring device is moved on contaminated soil and carry out an original position reparation, thereby saved the labour who carries back and forth contaminated soil in a large number.
And simultaneously by the effect of oxygen increasing pump, toward strengthening the content of oxygen in electrolyte, impel high valence state high toxicity heavy metal ion to transform lower valency hypotoxicity heavy metal ion, reduce the electrolyte quadratic risk function.
Further, described anode stub is coated with iridium dioxide layer and/or ruthenic oxide layer, and described cathode bar is coated with activated carbon felt and/or polypyrrole layer and/or anthraquinone-2,6-sodium disulfonate layer.Can improve like this reduction half-reaction Hydrogen Peroxide (H occurs on cathode bar 3 surfaces
2o
2) speed.
Further, described anode stub and cathode bar are outside equipped with the electrode protection net.
Further, described anode stub is mesh-like, and described cathode bar surface adopts three electrode diaphragm formula techniques to make H type electrolytic cell.
The beneficial effects of the utility model are: apparatus structure is simple, form a simple soil restoring device by dc source, anode stub, cathode bar and two blocks of porous polyethylene plates etc., so this device just because of simple in structure use more flexible, can be in the situation that not mobile contaminated soil, directly soil restoring device is moved on contaminated soil and carry out an original position reparation, thereby saved the labour who carries back and forth contaminated soil in a large number.
And simultaneously by the effect of oxygen increasing pump, toward strengthening the content of oxygen in electrolyte, impel high valence state high toxicity heavy metal ion to transform lower valency hypotoxicity heavy metal ion, reduce the environmental risk of electrolyte secondary pollution.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Wherein: 1, dc source, 2, anode stub, 3, cathode bar, 4, anode chamber; 5, cathode chamber, 6, cation permselective diaphragm, the 71, first porous polyethylene plate, the 72, second porous polyethylene plate; 8, heavy metal adsorption material, 9, the electrode protection net, 10, oxygen increasing pump.
The specific embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of improvement contaminated soil in-situ repairing, the anode stub 2 and the cathode bar 3 that is connected to dc source 1 negative pole that comprise dc source 1 and be connected to dc source 1 positive pole, in the anode chamber 4 that anode stub 2 inserts with electrolyte, in the cathode chamber 5 that cathode bar 3 inserts with electrolyte, electrolyte is sodium nitrate (NaNO3) solution.Anode stub 2 and cathode bar 3 are outside equipped with electrode protection net 9, and anode stub 2 is mesh-like, and cathode bar 3 surfaces adopt three electrode diaphragm formula techniques to make H type electrolytic cell.
Be positioned at the outer side towards cathode chamber 5 in anode chamber 4 and be provided with the first porous polyethylene plate 71, towards anode chamber, a side of 4 is provided with the second porous polyethylene plate 72 outward to be positioned at cathode chamber 5, form the reparation district of heavy-metal contaminated soil between the first porous polyethylene plate 71 and the second porous polyethylene plate 72, be provided with heavy metal adsorption material 8 between the first porous polyethylene plate 71 and anode chamber 4, be provided with heavy metal adsorption material 8 between the second porous polyethylene plate 72 and cathode chamber 5, be provided with the cation permselective diaphragm 6 be covered on cathode chamber 5 outer walls between heavy metal adsorption material 8 and cathode chamber 5.
Contaminated soil in-situ repairing also comprises oxygen increasing pump 10, and the escape pipe of oxygen increasing pump 10 stretches in the electrolyte of cathode chamber 5.Be connected with cathode chamber 5 by oxygen increasing pump 10, toward strengthening the content of oxygen in electrolyte, impel high valence state high toxicity heavy metal ion to transform lower valency hypotoxicity heavy metal ion, reduce the environmental risk of electrolyte secondary pollution.
Apparatus structure is simple, form a simple soil restoring device by dc source 1, anode stub 2, cathode bar 3 and two blocks of porous polyethylene plates etc., so this device just because of simple in structure use more flexible, can be in the situation that not mobile contaminated soil, directly soil restoring device is moved on contaminated soil and carry out an original position reparation, thereby saved the labour who carries back and forth contaminated soil in a large number.
Adopt dc source 1, when work, can form stable electric field, iridium dioxide layer and/or ruthenic oxide layer coating and titanium electrode are made to mesh-like, make iridium dioxide layer and/or ruthenic oxide layer electrode.Cathode bar 3 adopts three electrode diaphragm formula H type electrolytic cells, using activated carbon-fiber felt as working electrode, makes activated carbon-fiber felt and/or polypyrrole layer and/or anthraquinone-2,6-sodium disulfonate layer electrode.Cation permselective diaphragm 6 can pass through heavy metal ion and H+ infiltration.
For example, contain highly toxic heavy metal ion Cr6+ in contaminated soil, Cr6+ enters in electrolyte through cation permselective diaphragm 6, by oxygen increasing pump 10 oxygenation, proton H+ and electronics e-are in activated carbon-fiber felt and/or polypyrrole layer and/or anthraquinone-2, and reduction half-reaction Hydrogen Peroxide (H occurs 6-sodium disulfonate layer cathode bar 3 electrode surfaces
2o
2), square formula (1).The H generated in cathode bar 3
2o
2with Cr6+, redox reaction occurring, is reduced to the oligosaprobic Cr3+ of hypotoxicity, square formula (2) again.
O
2+2H
++2e
－→2H
2O
2 (1)
2HCrO
4 -+3H
2O
2+8H
+→2Cr
3++3O
2+8H
2O (2)。
The utility model apparatus structure is comparatively simple, treatment effect is good, highly effective, not only in position under state by the heavy metal ion adsorbed transfer in Polluted Soil, and part high toxicity heavy metal ion can be reduced to the oligosaprobic heavy metal ion of hypotoxicity, the environmental risk of decrease secondary pollution.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (4)
1. one kind is improved contaminated soil in-situ repairing, it is characterized in that: comprise dc source (1) and be connected to the anodal anode stub (2) of dc source (1) and be connected to the cathode bar (3) of dc source (1) negative pole, described anode stub (2) inserts in the anode chamber (4) with electrolyte, cathode bar (3) inserts in the cathode chamber (5) with electrolyte, be positioned at the outer side towards cathode chamber (5) in anode chamber (4) and be provided with the first porous polyethylene plate (71), towards anode chamber, one side of (4) is provided with the second porous polyethylene plate (72) outward to be positioned at cathode chamber (5), form the reparation district of heavy-metal contaminated soil between described the first porous polyethylene plate (71) and the second porous polyethylene plate (72), be provided with heavy metal adsorption material (8) between described the first porous polyethylene plate (71) and anode chamber (4), be provided with heavy metal adsorption material (8) between described the second porous polyethylene plate (72) and cathode chamber (5), be provided with the cation permselective diaphragm (6) be covered on cathode chamber (5) outer wall between heavy metal adsorption material (8) and cathode chamber (5),
Described contaminated soil in-situ repairing also comprises oxygen increasing pump (10), and the escape pipe of described oxygen increasing pump (10) stretches in the electrolyte of cathode chamber (5).
2. a kind of improvement contaminated soil in-situ repairing according to claim 1, it is characterized in that: described anode stub (2) is coated with iridium dioxide layer and/or ruthenic oxide layer, described cathode bar (3) is coated with activated carbon felt and/or polypyrrole layer and/or anthraquinone-2,6-sodium disulfonate layer.
3. a kind of improvement contaminated soil in-situ repairing according to claim 1 and 2, it is characterized in that: described anode stub (2) and cathode bar (3) are outside equipped with electrode protection net (9).
4. a kind of improvement contaminated soil in-situ repairing according to claim 1 is characterized in that: described anode stub (2) is mesh-like, and described cathode bar (3) surface adopts three electrode diaphragm formula techniques to make H type electrolytic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447408.4U CN203370805U (en) | 2013-07-25 | 2013-07-25 | Improved in-situ repairing device for polluted soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447408.4U CN203370805U (en) | 2013-07-25 | 2013-07-25 | Improved in-situ repairing device for polluted soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370805U true CN203370805U (en) | 2014-01-01 |
Family
ID=49833362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447408.4U Active CN203370805U (en) | 2013-07-25 | 2013-07-25 | Improved in-situ repairing device for polluted soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370805U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034860A (en) * | 2014-04-25 | 2014-09-10 | 杭州师范大学 | Experimental apparatus used for research on soil heavy metal prevention and control technology |
| CN105665433A (en) * | 2016-02-26 | 2016-06-15 | 上海宝发环科技术有限公司 | Soil contamination in-situ desorption method and device |
| CN106001046A (en) * | 2016-05-10 | 2016-10-12 | 长春黄金研究院 | Electric processing method for cyanide-contained tailing slag |
| CN106734132A (en) * | 2016-12-30 | 2017-05-31 | 常州大学 | A kind of device of electric plant restoration of soil polluted by heavy metal in situ |
| CN106914486A (en) * | 2017-04-28 | 2017-07-04 | 中南林业科技大学 | The electro reclamation device and electric repair method of heavy-metal contaminated soil |
| CN107900091A (en) * | 2017-11-21 | 2018-04-13 | 安徽省宿州市第二中学 | A kind of soil sanitation device and method |
| CN108555015A (en) * | 2018-05-09 | 2018-09-21 | 河北工业大学 | A kind of electric repair method in situ and equipment of portable contaminated soil |
| CN108746194A (en) * | 2018-08-08 | 2018-11-06 | 重庆大学 | A kind of experimental rig and test method closing repairing polluted soil based on magnetic-Electricity Federation |
| CN108787737A (en) * | 2018-07-09 | 2018-11-13 | 北京中岩大地科技股份有限公司 | A kind of Solid Waste Landfills original position method for separating polluted particles |
| CN110420983A (en) * | 2019-08-30 | 2019-11-08 | 清华大学 | The method and system of joint elution, absorption and electro reclamation heavy-metal contaminated soil |
| 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 |
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2013
- 2013-07-25 CN CN201320447408.4U patent/CN203370805U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034860B (en) * | 2014-04-25 | 2016-01-27 | 杭州师范大学 | For the experimental provision of heavy metal-polluted soil resistance control techniques research |
| CN104034860A (en) * | 2014-04-25 | 2014-09-10 | 杭州师范大学 | Experimental apparatus used for research on soil heavy metal prevention and control technology |
| CN105665433A (en) * | 2016-02-26 | 2016-06-15 | 上海宝发环科技术有限公司 | Soil contamination in-situ desorption method and device |
| CN106001046B (en) * | 2016-05-10 | 2019-12-10 | 长春黄金研究院 | electric treatment method of cyanogen-containing tailing slag |
| CN106001046A (en) * | 2016-05-10 | 2016-10-12 | 长春黄金研究院 | Electric processing method for cyanide-contained tailing slag |
| CN106734132A (en) * | 2016-12-30 | 2017-05-31 | 常州大学 | A kind of device of electric plant restoration of soil polluted by heavy metal in situ |
| CN106914486A (en) * | 2017-04-28 | 2017-07-04 | 中南林业科技大学 | The electro reclamation device and electric repair method of heavy-metal contaminated soil |
| CN106914486B (en) * | 2017-04-28 | 2020-04-03 | 中南林业科技大学 | Electric remediation device and electric remediation method for heavy metal contaminated soil |
| CN107900091A (en) * | 2017-11-21 | 2018-04-13 | 安徽省宿州市第二中学 | A kind of soil sanitation device and method |
| CN108555015A (en) * | 2018-05-09 | 2018-09-21 | 河北工业大学 | A kind of electric repair method in situ and equipment of portable contaminated soil |
| CN108787737A (en) * | 2018-07-09 | 2018-11-13 | 北京中岩大地科技股份有限公司 | A kind of Solid Waste Landfills original position method for separating polluted particles |
| CN108746194A (en) * | 2018-08-08 | 2018-11-06 | 重庆大学 | A kind of experimental rig and test method closing repairing polluted soil based on magnetic-Electricity Federation |
| CN108746194B (en) * | 2018-08-08 | 2020-08-04 | 重庆大学 | Test device and test method for repairing polluted soil based on magnetic-electric combination |
| CN110420983A (en) * | 2019-08-30 | 2019-11-08 | 清华大学 | The method and system of joint elution, absorption and electro reclamation heavy-metal contaminated soil |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 2188 No. 213022 Jiangsu province Zhonglou District of Changzhou City Avenue Patentee after: SUNTIME ENVIRONMENTAL REMEDIATION CO., LTD. Address before: 213022 Taihu road Jiangsu city Changzhou province Xinbei hi tech Zone No. 30 Patentee before: Jiangsu Suntime Environmental Remediation Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 2188 Longcheng Road, Zhong Lou District, Changzhou, Jiangsu Patentee after: Shanda Environmental Restoration Co., Ltd. Address before: 213022 No. 2188 Longcheng Avenue, Zhonglou District, Changzhou City, Jiangsu Province Patentee before: SUNTIME ENVIRONMENTAL REMEDIATION CO., LTD. |