CN113909287B - Heavy metal contaminated soil is with electronic prosthetic devices - Google Patents
Heavy metal contaminated soil is with electronic prosthetic devices Download PDFInfo
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- CN113909287B CN113909287B CN202111261620.7A CN202111261620A CN113909287B CN 113909287 B CN113909287 B CN 113909287B CN 202111261620 A CN202111261620 A CN 202111261620A CN 113909287 B CN113909287 B CN 113909287B
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- box
- exchange membrane
- ion exchange
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- cathode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Abstract
The invention relates to the technical field of soil heavy metal pollution remediation, and discloses an electric remediation device for heavy metal polluted soil. Through the setting of positive pole case and negative pole case mounted position, make only need set up the pore of a erection equipment in soil, reduce the engineering volume by a wide margin, and make the negative pole be located ground top, can be convenient for carry out big change to the washing liquid that adsorbs heavy metal ion, guarantee heavy metal ion's clearance efficiency, simultaneously through the setting of ion exchange membrane I, make supporting of washing liquid fill down, ion exchange membrane I and ion exchange membrane II swell respectively, carry out the flexonics with soil, soil lacerated ion exchange membrane I when avoiding installing, and ion exchange membrane I carries out in close contact with soil respectively with ion exchange membrane II, improve the circulation of ion, accelerate cleaning efficiency.
Description
Technical Field
The invention relates to the technical field of soil heavy metal pollution remediation, in particular to an electric remediation device for heavy metal polluted soil.
Background
The pollution refers to the abnormal distribution of substances and energy in three media of the earth, the soil pollution can be roughly classified into three categories at present, and firstly, the soil pollution is formed by adding toxic and harmful substances to the soil through human activities; secondly, when the content of a certain element in the soil exceeds the background value of the element in the soil of the area and the two times of standard deviation, the soil is considered to be infected by the certain element; thirdly, the phenomenon that harmful substances invade soil due to human activities and exceed the self-cleaning capability of the soil, so that the properties and components of the soil are changed to cause harm to human health is called soil pollution, wherein, when the heavy metal pollution is repaired by using an electric repairing method, the defects are as follows:
the method is characterized in that a direct current voltage is applied to two ends of the polluted soil to form a gradient electric field, heavy metal pollutants are gathered to electrodes at two ends to be collected or processed in modes of migration seepage, electrophoresis and the like under the action of the gradient electric field, when the large-scale polluted soil is repaired, the two ends of the soil need to be processed when the gradient electric field is arranged, the electric field can be applied, but the processing process is very complicated, and the repairing efficiency is greatly influenced.
Disclosure of Invention
The invention provides an electric repair device for heavy metal contaminated soil, which has the advantages of good repair effect and high efficiency and solves the problems in the background art.
The invention provides the following technical scheme: the utility model provides a heavy metal contaminated soil is with electronic prosthetic devices, includes anode box and cathode box, the cathode box is located the ground top, anode box and cathode box symmetry installation on the perpendicular, the inside of anode box and cathode box is even fixed mounting respectively has metal baffle, the inside of anode box just is located movable mounting between two adjacent metal baffles has the anode plate, the inside of cathode box just is located movable mounting between two adjacent metal baffles and has the negative plate, the outside fixed mounting of anode box has fix the support frame I, the inboard fixedly connected with ion exchange membrane I that just is located fix the support frame I on the anode box, the length and the width of ion exchange membrane I all are greater than the length and the width of anode box, the outside fixed mounting of cathode box has fix the support frame II, the bottom and the bottom surface contact of fix the support frame II, the inboard fixed mounting that just is located fix the support frame II on the cathode box has ion exchange membrane II, the last fixed surface of negative plate is connected with the spring, the top and the cathode box fixed connection of spring.
Preferably, there is solenoid valve I in the both sides difference fixed mounting of anode box, metal partition's bottom and the inside fixed mounting who is located the anode box have solenoid valve II, the last fixed surface of cathode box installs into the liquid case, the top of cathode box just is located the negative plate and directly over fixed mounting has solenoid valve III, the inner chamber of entering the liquid case passes through solenoid valve III and the inner chamber intercommunication of cathode box, the top of entering the liquid case is through pipe fixedly connected with transfer pump.
Preferably, the bottom fixed mounting of anode plate has the permanent magnet, the even fixed mounting in the bottom of anode box and be located the permanent magnet has the electro-magnet under, the last fixed surface of anode plate is connected with slice stay cord, the top of slice stay cord is connected with the lower fixed surface of ion exchange membrane I, the back fixed mounting of cathode box has the liquid change valve, the liquid change valve passes through the pipe and communicates the headspace of cathode plate with the bottom of cathode plate.
Preferably, the movable sleeve is uniformly and movably sleeved on the fixed support frame I, and the outer side of the ion exchange membrane I is fixedly connected with the inner side of the movable sleeve.
The invention has the following beneficial effects:
1. through the setting of positive pole case and negative pole case mounted position, make only need set up the pore of a erection equipment in soil, reduce the engineering volume by a wide margin, and make the negative pole be located ground top, can be convenient for carry out big change to the washing liquid that adsorbs heavy metal ion, guarantee heavy metal ion's clearance efficiency, simultaneously through the setting of ion exchange membrane I, make supporting of washing liquid fill down, ion exchange membrane I and ion exchange membrane II swell respectively, carry out the flexonics with soil, soil lacerated ion exchange membrane I when avoiding installing, and ion exchange membrane I carries out in close contact with soil respectively with ion exchange membrane II, improve the circulation of ion, accelerate cleaning efficiency.
2. Through the setting of anode plate and negative plate, make anode plate and negative plate carry out reverse same frequency shift on the vertical direction, and then make the electric field intensity between anode plate and the negative plate carry out the change of certain frequency, make the heavy metal ion in the soil possess different acceleration when the migration, strengthen the effect of heavy metal ion in soil, improve the ability that heavy metal ion breaks through the obstacle, simultaneously through the setting of slice stay cord, make under the pulling of slice stay cord, make ion exchange membrane I present the wave and surge and move as usual, will fall the outside discharge of soil of top gradually and send, avoid the soil that drops to pile up on ion exchange membrane I, lead to the oppression to ion exchange membrane I, lead to the fracture of ion exchange membrane I.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic view of the working principle of the structure of the present invention;
FIG. 3 is a top view partially in schematic form of the structure of the present invention;
FIG. 4 is an enlarged schematic view of the point A in FIG. 1;
FIG. 5 is a schematic view of the movement state of the ion exchange membrane I with the structure of the present invention.
In the figure: 1. an anode case; 2. a metal separator; 3. an anode plate; 4. fixing a support frame I; 5. an ion exchange membrane I; 6. a solenoid valve I; 7. a solenoid valve II; 8. a permanent magnet; 9. an electromagnet; 10. a movable sleeve; 11. a cathode box; 12. a cathode plate; 13. fixing a support frame II; 14. an ion exchange membrane II; 15. a spring; 16. a liquid inlet tank; 17. a solenoid valve III; 18. a liquid change valve; 19. a sheet pull rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an electric repairing device for heavy metal contaminated soil comprises an anode box 1 and a cathode box 11, wherein the cathode box 11 is located above the ground, the anode box 1 and the cathode box 11 are symmetrically installed on a vertical plane, metal partition plates 2 are respectively and uniformly and fixedly installed inside the anode box 1 and the cathode box 11, an anode plate 3 is movably installed inside the anode box 1 and between two adjacent metal partition plates 2, a cathode plate 12 is movably installed inside the cathode box 11 and between two adjacent metal partition plates 2, a fixed support frame i 4 is fixedly installed outside the anode box 1, an ion exchange membrane i 5 is fixedly connected on the inner side of the fixed support frame i 4 on the anode box 1, the length and width of the ion exchange membrane i 5 are both greater than the length and width of the anode box 1, a fixed support frame ii 13 is fixedly installed outside the cathode box 11, the bottom end of the fixed support frame II 13 is in contact with the bottom surface, an ion exchange membrane II 14 is fixedly mounted on the cathode box 11 and positioned on the inner side of the fixed support frame II 13, a spring 15 is fixedly connected to the upper surface of the cathode plate 12, the top end of the spring 15 is fixedly connected with the cathode box 11, a horizontal pore passage is dug below the polluted soil, the height of the pore passage is slightly larger than that of the anode box 1, then the anode box 1 is placed in the pore passage, cleaning liquid is filled into the anode box 1 and the cathode box 11, then the ion exchange membrane I5 and the ion exchange membrane II 14 are respectively expanded under the action of the cleaning liquid and are in flexible contact with the soil, the ion exchange membrane I5 is prevented from being scratched by the soil during installation, the ion exchange membrane I5 and the ion exchange membrane II 14 are respectively in close contact with the soil, the circulation of ions is improved, and the cleaning efficiency is accelerated; electromagnetic valves I6 are fixedly mounted on two sides of an anode box 1 respectively, electromagnetic valves II 7 are fixedly mounted at the bottom end of a metal partition plate 2 and located inside the anode box 1, a liquid inlet box 16 is fixedly mounted on the upper surface of a cathode box 11, electromagnetic valves III 17 are fixedly mounted at the top of the cathode box 11 and located right above a cathode plate 12, an inner cavity of the liquid inlet box 16 is communicated with an inner cavity of the cathode box 11 through the electromagnetic valves III 17, an infusion pump is fixedly connected to the top of the liquid inlet box 16 through a guide pipe and conducts the liquid into the anode box 1 through the electromagnetic valves I6, then all the electromagnetic valves II 7 are opened, the anode plate 3 is jacked upwards by using cleaning liquid and gradually approaches to soil, meanwhile, the infusion pump presses the cleaning liquid into the cathode box 11 from the liquid inlet box 16 through the electromagnetic valves III 17 to push the cathode plate 12 to descend, so that the distance between the anode plate 3 and the cathode plate 12 gradually approaches to each other, then the cleaning liquid at the bottom of the anode plate 3 is released, the cleaning liquid stops conveying of the cleaning liquid into the liquid inlet box 16, so that the cathode plate 12 ascends under the action of a liquid changing valve 18, further the cathode plate 3 and the cathode plate 12 are far away from each other, electric field intensity between the anode plate 3 and the cathode plate 12 is changed at a certain frequency, so that the heavy metal ions in the electric field intensity of the electric field intensity change, the heavy metal ions in the heavy metal ions, the heavy metal ions migration effect of the heavy metal migration in the heavy metal migration of the heavy metal migration in the soil is enhanced, and the heavy metal migration of the heavy metal migration in the soil is enhanced in the soil, and the heavy metal migration of the soil is enhanced in the soil;
referring to fig. 4-5, a permanent magnet 8 is fixedly installed at the bottom of an anode plate 3, electromagnets 9 are uniformly and fixedly installed at the bottom of an anode box 1 and under the permanent magnet 8, a sheet-shaped pull rope 19 is fixedly connected to the upper surface of the anode plate 3, the top end of the sheet-shaped pull rope 19 is fixedly connected to the lower surface of an ion exchange membrane i 5, a liquid change valve 18 is fixedly installed at the back of a cathode box 11, the top space of the cathode plate 12 is communicated with the bottom of the cathode plate 12 through a guide pipe by the liquid change valve 18, firstly, a cleaning liquid at the bottom of the leftmost anode plate 3 is released, then, the leftmost electromagnet 9 and an electromagnetic valve ii 7 are electrified, thrust is generated between the electromagnet 9 and the permanent magnet 8, the anode plate 3 adjacent to the leftmost anode plate 3 descends under the action of gravity and the action of adsorption force, therefore, the anode plate 3 is sequentially lifted from left to right, and then under the pulling of the sheet-shaped pull rope 19, the ion exchange membrane I5 is made to wave-like surging, soil falling to the upper part is gradually discharged outwards, the falling soil is prevented from being accumulated on the ion exchange membrane I5, the ion exchange membrane I5 is prevented from being pressed, the ion exchange membrane I5 is broken, in the cathode box 11, through the closing of the control electromagnetic valve III 17 and the liquid changing valve 18, when the spring 15 pulls the cathode plate 12 to ascend, cleaning liquid above the cathode plate 12 is discharged to the lower part of the cathode plate 12 from the upper part of the cathode plate 12, the cleaning liquid filled with metal ions is changed, and the phenomenon that the metal ion concentration in the cleaning liquid is too high to influence the effect of the cleaning liquid is avoided; the movable sleeve 10 has been cup jointed in even activity on fixed stay frame I4, the outside of ion exchange membrane I5 and the inboard fixed connection of movable sleeve 10, when ion exchange membrane I5 received the washing liquid to support the inflation, ion exchange membrane I5 drives movable sleeve 10 and rises, make movable sleeve 10 can support ion exchange membrane I5's avris, avoid hydraulic pressure to cause the extrusion to ion exchange membrane I5, lead to ion exchange membrane I5 to collapse, even break, reinforcing ion exchange membrane I5's expansion effect, make it can with soil in close contact with.
The working principle is that firstly, a horizontal pore channel is dug below the polluted soil, the height of the pore channel is slightly larger than that of an anode box 1, then, the anode box 1 is placed in the pore channel, cleaning liquid is filled in the anode box 1 and a cathode box 11, then, the cleaning liquid is filled in the anode box 1 and the cathode box, so that an ion exchange membrane I5 and an ion exchange membrane II 14 are respectively swelled and are in flexible contact with the soil, the ion exchange membrane I5 and the ion exchange membrane II 14 are respectively in tight contact with the soil, then, the cleaning liquid between the anode box 1 and a metal partition plate 2 at the bottom of the leftmost anode plate 3 is released, then, an electromagnet 9 and an electromagnetic valve II 7 at the leftmost side are electrified, thrust is generated between the electromagnet 9 and a permanent magnet 8 to generate negative pressure, at the moment, an anode plate 3 adjacent to the leftmost anode plate 3 descends under the action of gravity and the action of the negative pressure, cleaning liquid passes through the leftmost electromagnetic valve II 7 at the lower part, therefore, the anode plate 3 ascends and moves from the left to the right in turn under the action of a sheet pull rope 19, so that the ion exchange liquid 5 is waved, the same frequency I falls to the upper part of the soil, the cathode plate 18 and the cathode plate is changed to the upper part of the cathode plate 12, the cleaning liquid is changed, the cathode plate 12 is changed, and the cleaning liquid is changed, and the cathode plate 18, and the cathode plate 12, and the cleaning liquid is changed to the cathode plate 18 is changed, and the cathode plate 12, and the cathode plate 18 is changed under the action of the cathode plate 12, and the cleaning liquid is changed.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a heavy metal contaminated soil is with electronic prosthetic devices, includes positive pole case (1) and negative pole case (11), negative pole case (11) are located ground top, its characterized in that: the ion exchange membrane ion source is characterized in that the anode box (1) and the cathode box (11) are symmetrically installed on a vertical plane, metal partition plates (2) are uniformly and fixedly installed inside the anode box (1) and the cathode box (11) respectively, an anode plate (3) is movably installed inside the anode box (1) and between two adjacent metal partition plates (2), a cathode plate (12) is movably installed inside the cathode box (11) and between two adjacent metal partition plates (2), a fixing support frame I (4) is fixedly installed on the outer side of the anode box (1), an ion exchange membrane I (5) is fixedly connected to the inner side of the fixing support frame I (4) on the anode box (1), the length and the width of the ion exchange membrane I (5) are larger than those of the anode box (1), a fixing support frame II (13) is fixedly installed on the outer side of the cathode box (11), the bottom end of the fixing support frame II (13) is in contact with the bottom surface, an ion exchange membrane (14) is fixedly installed on the inner side of the cathode box (11) and located on the fixing support frame II (13), a spring (15) is connected with the top end of the cathode box (11) and connected with a cathode plate (11);
the utility model discloses a lithium ion battery, including anode box (1), metal baffle (2), solenoid valve I (6), the inside fixed mounting that the bottom of anode box (1) just is located anode box (1) has solenoid valve II (7), the last fixed surface of cathode box (11) installs into liquid case (16), the top of cathode box (11) just is located the positive plate (12) directly over fixed mounting has solenoid valve III (17), the inner chamber that advances liquid case (16) passes through solenoid valve III (17) and the inner chamber intercommunication of cathode box (11), the top of advancing liquid case (16) passes through pipe fixedly connected with transfer pump, the bottom fixed mounting of anode plate (3) has permanent magnet (8), the bottom of anode box (1) just is located the even fixed mounting under permanent magnet (8) has electro-magnet (9), the last fixed surface of anode plate (3) is connected with slice stay cord (19), the top of anode plate (19) and the lower fixed surface of ion exchange membrane I (5) are connected, the back fixed mounting of cathode box (11) has the liquid valve (18) of trading, the liquid valve (18) is through the top space intercommunication of negative plate (12) and negative plate (12).
2. The electric restoration device for heavy metal contaminated soil according to claim 1, characterized in that: the movable sleeve (10) is uniformly and movably sleeved on the fixed support frame I (4), and the outer side of the ion exchange membrane I (5) is fixedly connected with the inner side of the movable sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111261620.7A CN113909287B (en) | 2021-10-28 | 2021-10-28 | Heavy metal contaminated soil is with electronic prosthetic devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111261620.7A CN113909287B (en) | 2021-10-28 | 2021-10-28 | Heavy metal contaminated soil is with electronic prosthetic devices |
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| CN113909287A CN113909287A (en) | 2022-01-11 |
| CN113909287B true CN113909287B (en) | 2022-11-04 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8702437A (en) * | 1987-10-13 | 1989-05-01 | Geo Kinetics B V I O | METHOD FOR CONDITIONING GROUND MATERIAL BY ELECTROKINETIC TREATMENT, ELECTRIC FLOW SYSTEM FOR APPLICATION OF THE METHOD AND ELECTRODE HOUSING FOR USE IN THE ELECTRIC FLOW SYSTEM. |
| CN1695834A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for restoring soil polluted by heavy metal |
| CN100484650C (en) * | 2006-01-13 | 2009-05-06 | 南京大学 | Direct current and variable electric field electric restoring method of polluted kaolin and montmorillonite |
| CN106513433B (en) * | 2017-01-20 | 2017-12-05 | 中国地质科学院矿产资源研究所 | Electric repair turnover device for heavy metal contaminated soil |
| ES2614895A1 (en) * | 2017-03-22 | 2017-06-02 | Universidad Politécnica de Madrid | Procedure for the magnetic decontamination of soils (Machine-translation by Google Translate, not legally binding) |
| CN107116097B (en) * | 2017-06-21 | 2018-02-16 | 郑州航空工业管理学院 | A kind of method for repairing As polluted soil |
| CN109332374A (en) * | 2018-12-14 | 2019-02-15 | 浙江中地净土科技有限公司 | A kind of electro reclamation horizontal type device of heavy-metal contaminated soil |
| CN110000203A (en) * | 2019-04-09 | 2019-07-12 | 重庆大学 | A kind of experimental rig and test method based on electric restoring polluted soil |
| CN110142290A (en) * | 2019-05-16 | 2019-08-20 | 浙江省有色金属地质勘查局 | A kind of heavy-metal contaminated soil electro reclamation device and method |
| CN110153164B (en) * | 2019-06-20 | 2021-04-16 | 安徽蓝鼎环保能源科技有限公司 | Heavy metal contaminated soil prosthetic devices |
| CN210647720U (en) * | 2019-08-09 | 2020-06-02 | 南京迪天高新产业技术研究院有限公司 | Electronic restoration heavy metal contaminated soil device |
| CN110883080A (en) * | 2019-12-20 | 2020-03-17 | 河北工业大学 | Soil heavy metal in-situ sensing monitoring, adsorption transfer and precipitation recovery system |
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Effective date of registration: 20221013 Address after: 226001 floor 5, building 1, haoying International Energy Center, No. 919, Yongxing Avenue, Chongchuan District, Nantong City, Jiangsu Province Applicant after: Jiangsu chengran Environmental Restoration Engineering Co.,Ltd. Address before: 610093 No. 6, unit 1, building 11, No. 148, Renhe street, high tech Zone, Chengdu, Sichuan Applicant before: Xu Haiyan |
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