CN214391608U - System for electronic restoration unites normal position drip washing - Google Patents
System for electronic restoration unites normal position drip washing Download PDFInfo
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- CN214391608U CN214391608U CN202023194192.4U CN202023194192U CN214391608U CN 214391608 U CN214391608 U CN 214391608U CN 202023194192 U CN202023194192 U CN 202023194192U CN 214391608 U CN214391608 U CN 214391608U
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- 238000005406 washing Methods 0.000 title abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 238000000605 extraction Methods 0.000 claims abstract description 54
- 239000002689 soil Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 25
- 238000002386 leaching Methods 0.000 claims description 27
- 239000003814 drug Substances 0.000 claims description 15
- 238000011065 in-situ storage Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 11
- 238000005067 remediation Methods 0.000 claims description 9
- 238000009393 electroremediation Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000575 pesticide Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002360 explosive Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 13
- 231100000719 pollutant Toxicity 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 230000005684 electric field Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a system for electronic restoration unites normal position drip washing, include: electronic repair system, leacheate injection system and leachate recovery processing system, electronic repair system includes pulse power supply, positive pole plate electrode, negative pole plate electrode, positive pole electrolytic cell and negative pole electrolytic cell, leacheate injection system is including injection well, injection pipeline and explosive box, leacheate recovery processing system is including extracting well, extraction pipe, extraction pump and waste liquid recovery jar, the extraction well is arranged in the soil between positive pole plate electrode and negative pole plate electrode, waste liquid recovery jar output is connected with the injection pipeline for the waste liquid after handling through waste liquid recovery jar returns the leachate injection system recycle once more. In this way, system that electronic restoration unites normal position drip washing, be applicable to the heavy metal pollution place of different geological conditions, promoted the repairing effect in pollution place.
Description
Technical Field
The utility model relates to a soil remediation technical field especially relates to a system of electronic restoration combination normal position drip washing.
Background
In recent years, the problem of soil pollution in China is increasingly serious, and heavy metal pollution is one of the problems that the soil pollution area is the widest and the harm is the most serious at present, so that the remediation of the heavy metal polluted soil is more and more emphasized. The electric remediation method is a novel soil heavy metal pollution remediation technology and has the advantages of wide application range, short remediation period, difficulty in causing secondary pollution and the like.
The electric restoration method is generally characterized in that a low-voltage direct current electric field is added at two ends of polluted soil, so that pollutants which are dissolved in water or adsorbed on the surface layer of soil particles are enriched to electrodes at two ends, the electric restoration method is suitable for low-permeability soil, and the restoration efficiency of high-concentration pollutants is high.
The existing electric restoration technology only provides power for the migration of pollutants existing in a soil solution, but many pollutants in the soil are insoluble in water, so that the restoration effect of the electric restoration technology is limited to a certain extent. Therefore, the electro-kinetic remediation technology needs to be combined and complemented with other technologies to improve the pollutant removal efficiency. The leaching method is to remove heavy metal pollutants in soil by means of a medicament and then extract liquid containing the pollutants from underground water for treatment and separation, but is suitable for porous and permeable soil. Therefore, the in-situ leaching technology can be combined with the electric repairing technology, so that the defects and shortcomings of the two repairing technologies when used singly are overcome, and the repairing effect of the heavy metal polluted site is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a system that electronic restoration unites normal position drip washing, realizes the combination of electronic restoration technique and normal position drip washing technique, promotes the suitability to the heavy metal pollution place of various geological conditions, reduces repair cost, promotes the restoration effect.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a system combining electrokinetic remediation and in-situ leaching, comprising:
the electric restoration system comprises a pulse power supply, an anode electrode plate, a cathode electrode plate, an anode electrolytic cell and a cathode electrolytic cell, wherein the anode electrolytic cell and the cathode electrolytic cell are distributed in soil at intervals, the anode electrode plate is arranged in the anode electrolytic cell, the cathode electrode plate is arranged in the cathode electrolytic cell, and the pulse power supply is respectively in linear connection with the anode electrode plate and the cathode electrode plate to supply power;
the leacheate injection system comprises an injection well, an injection pipeline and a pesticide storage box, wherein the injection well is arranged in the soil between the anode electrode plate and the cathode electrode plate, and the pesticide storage box is connected with the injection well through the injection pipeline;
the leachate recovery processing system comprises an extraction well, an extraction pipe, an extraction pump and a waste liquid recovery tank, wherein the extraction well is arranged in soil between an anode plate electrode and a cathode plate electrode, the input end of the waste liquid recovery tank is connected with an anode electrolytic cell, a cathode electrolytic cell and the extraction well through the extraction pipe, the extraction pump is arranged on the extraction pipe, and the output end of the waste liquid recovery tank is connected with an injection pipeline, so that waste liquid treated by the waste liquid recovery tank is returned to the leachate injection system for recycling.
In a preferred embodiment of the present invention, the extraction well, the anode electrolytic cell and the cathode electrolytic cell are respectively provided with a real-time heavy metal concentration monitor.
In a preferred embodiment of the present invention, a first filter screen is disposed on one side of the anode electrolytic cell and the cathode electrolytic cell near the electrolysis region.
In a preferred embodiment of the present invention, the medicine storage box stores a rinsing medicine.
In a preferred embodiment of the present invention, a booster pump is disposed in the injection pipeline.
In a preferred embodiment of the present invention, the extraction wells are spaced apart in the soil between the anode electrode plate and the cathode electrode plate, and the injection wells are located in the soil between adjacent extraction wells, respectively.
In a preferred embodiment of the present invention, the injection well is provided with injection holes around the injection well, the extraction pipe is provided with suction holes around the extraction pipe, and the extraction pipe is sleeved with a second filter screen.
In a preferred embodiment of the present invention, the injection line is connected to the injection well by a threaded joint.
The utility model has the advantages that: the utility model provides a system of electronic restoration combination normal position drip washing, through electronic repair system, the combination of leachate injection system and leachate recovery processing system, realize the parallel of two kinds of repair techniques of electronic restoration and normal position drip washing, the technical defect when having compensatied single use electronic restoration or normal position drip washing technique, the repairing effect in heavy metal pollution place has been promoted, avoid in the less condition of place electric energy or the medicament availability factor that geological conditions or pollution conditions are complicated, the availability factor of electric energy and medicament is improved, reduce the repair cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a preferred embodiment of a system for electric remediation combined with in-situ leaching according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
a system for electrokinetic remediation combined with in situ leaching, as shown in fig. 1, was constructed comprising: the device comprises an electric repair system, an leacheate injection system and a leachate recovery treatment system. In this embodiment, the electric repair system includes a pulse power supply 1, an anode electrode plate 2, a cathode electrode plate 3, an anode electrolytic cell 4 and a cathode electrolytic cell 5, the anode electrolytic cell 4 and the cathode electrolytic cell 5 are distributed in the soil at intervals, the anode electrode plate 2 is disposed in the anode electrolytic cell 4, the cathode electrode plate 3 is disposed in the cathode electrolytic cell 5, the pulse power supply 1 is respectively connected with the anode electrode plate 2 and the cathode electrode plate 3 in a linear manner to supply power, so as to form a repair electric field, and pollutants in the soil are enriched in the anode electrolytic cell and the cathode electrolytic cell under the action of the repair electric field.
In this embodiment, the first filter screen 6 is disposed on one side of the anode electrolytic cell 4 and the cathode electrolytic cell 5 near the electrolysis region, and the other sides and the bottom of the anode electrolytic cell 4 and the cathode electrolytic cell 5 are sealed to prevent soil from entering the anode electrolytic cell 4 and the cathode electrolytic cell 5.
As shown in fig. 1, the leacheate injection system comprises an injection well 9, an injection pipeline 11 and a pesticide storage box 14, wherein the injection well 9 is arranged in the soil between the anode electrode plate 2 and the cathode electrode plate 3, the pesticide storage box 14 is connected with the injection well 9 through the injection pipeline 11, in the embodiment, the injection pipeline 11 is connected with the injection well 9 through a threaded joint, the disassembly and the assembly are convenient, and the efficiency of site construction is improved.
The medicine tank 14 stores a leaching agent therein, and the valve of the medicine tank 14 is opened to feed the leaching agent into the injection well 9 through the injection line 11. In this embodiment, be provided with the booster pump in the injection pipeline 11, promote the efficiency that the leaching medicament sent into injection well 9, injection well 9 is provided with the filling hole all around for the leaching medicament sprays to soil all around through the filling hole, migrates the heavy metal pollutant in the soil.
In this embodiment, the leachate recycling system includes an extraction well 7, an extraction pipe 10, an extraction pump 12 and a waste liquid recycling tank 13, where the extraction well 7 is disposed in the soil between the anode electrode plate 2 and the cathode electrode plate 3, in order to improve the migration efficiency of heavy metal pollutants in the soil, a plurality of extraction wells 7 may be distributed at intervals in the soil between the anode electrode plate 2 and the cathode electrode plate 3, and a plurality of injection wells 9 are respectively located in the soil between adjacent extraction wells 7, which is beneficial to the circulation of leaching agents.
In this embodiment, waste liquid recovery jar 13 input and positive pole electrolytic cell 4, negative pole electrolytic cell 5 and extract and be connected through extraction pipe 10 between the well 7, extract pump 12 setting on extraction pipe 10, take the waste liquid in positive pole electrolytic cell 4, negative pole electrolytic cell 5 and the extraction well 7 out, send into waste liquid recovery jar 13, extraction pipe 10 is provided with the suction hole all around to the cover is equipped with the second filter screen, ensures to extract efficiency, avoids soil to get into extraction pipe 10.
The output end of the waste liquid recovery tank 13 is connected with the injection pipeline 11, so that the waste liquid treated by the waste liquid recovery tank 13 is returned to the leacheate injection system for recycling, and the cost is reduced. In this embodiment, be provided with heavy metal concentration real-time supervision ware 8 in extraction well 7, positive pole electrolytic cell 4 and the negative pole electrolytic cell 5 respectively, carry out extraction well 7, heavy metal concentration detects in positive pole electrolytic cell 4 and the negative pole electrolytic cell 5 to can be connected with heavy metal concentration real-time supervision ware 8 through the PLC controller who takes the touch-control screen, carry out the real-time demonstration of heavy metal concentration, be favorable to judging repair effect and adjusting pulse power supply 1, extraction pump 12 and booster pump work, promote automatic level.
Repairing:
according to the characteristics of the heavy metal contaminated soil field, if the metal contaminated soil field is irregular, the metal contaminated soil field can be divided into a plurality of regular fields, an anode electrolytic cell 4 and a cathode electrolytic cell 5 are installed in the soil at two ends of the field, an anode electrode plate 2 is placed in the anode electrolytic cell 4, a cathode electrode plate 3 is placed in the cathode electrolytic cell 5, and a pulse power supply 1 is respectively in linear connection with the anode electrode plate 2 and the cathode electrode plate 3, so that power supply is facilitated;
according to the area of a polluted site and the hydrogeological conditions, a plurality of injection wells 9 and extraction wells 7 are arranged between an anode electrolytic cell 4 and a cathode electrolytic cell 5 at intervals, a medicine storage box 14 is connected with the injection wells 9 through an injection pipeline 11, so that leaching agents in the medicine storage box 14 can be conveniently fed into the injection wells 9, the soil is leached, waste liquid generated by leaching enters the extraction wells 7, the anode electrolytic cell 4 and the cathode electrolytic cell 5, and the input end of a waste liquid recovery tank 13 is respectively connected with the anode electrolytic cell 4, the cathode electrolytic cell 5 and the extraction wells 7 through a leaching pipe 10, so that the waste liquid is conveniently recovered;
respectively installing heavy metal concentration real-time monitors 8 in the extraction well 7, the anode electrolytic cell 4 and the cathode electrolytic cell 5, and carrying out real-time monitoring on the heavy metal concentrations in the extraction well 7, the anode electrolytic cell 4 and the cathode electrolytic cell 5 to master specific data;
in the repairing process, the leaching agent in the medicine storage box 14 is injected into the polluted soil through the injection well 9, the soil near the injection well 9 is leached to form leaching liquid, then the leaching liquid with heavy metals is extracted into the waste liquid recovery tank 13 through the extraction well 7 near the injection well 9 for recovery treatment, and the treated leaching liquid is returned to the leaching liquid injection system for recycling;
in the leaching process, part of leacheate enters the anode electrolytic cell 4 and the cathode electrolytic cell 5, the pulse power supply 1 is started to form an electric repairing net and a repairing electric field, pollutants are enriched in the anode electrolytic cell 4 and the cathode electrolytic cell 5 under the action of the electric field and the leacheate, the leacheate containing heavy metal pollutants in the anode electrolytic cell 4 and the cathode electrolytic cell 5 is sent to a waste liquid recovery tank 13 through an extraction pipe 10 and an extraction pump 12, and the heavy metal pollutants are subjected to centralized treatment and the waste liquid is recycled;
and when the real-time heavy metal concentration monitor 8 detects that the water quality in the anode electrolytic cell 4, the cathode electrolytic cell 5 and the extraction well 7 does not change any more and the heavy metal content in the soil reaches the repair target value, completing the repair and closing the system.
To sum up, the utility model provides a system that electronic restoration unites normal position drip washing, through the method that electronic restoration unites normal position drip washing, be applicable to the heavy metal pollution place of various geological conditions, compensate the technical defect when single electronic restoration of use or normal position drip washing technique, avoid electric energy or the lower condition of medicament exclusive use efficiency in the place that geological conditions or pollution condition are complicated, improve the availability factor of electric energy and medicament respectively, the cost of restoration is reduced, the repairing effect in heavy metal pollution place has been promoted.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the present invention, or directly or indirectly applied to other related technical fields, and all included in the same way in the protection scope of the present invention.
Claims (8)
1. An electrokinetic remediation in combination with in situ leaching system for remediation of contaminated soil, comprising:
the electric restoration system comprises a pulse power supply, an anode electrode plate, a cathode electrode plate, an anode electrolytic cell and a cathode electrolytic cell, wherein the anode electrolytic cell and the cathode electrolytic cell are distributed in soil at intervals, the anode electrode plate is arranged in the anode electrolytic cell, the cathode electrode plate is arranged in the cathode electrolytic cell, and the pulse power supply is respectively in linear connection with the anode electrode plate and the cathode electrode plate to supply power;
the leacheate injection system comprises an injection well, an injection pipeline and a pesticide storage box, wherein the injection well is arranged in the soil between the anode electrode plate and the cathode electrode plate, and the pesticide storage box is connected with the injection well through the injection pipeline;
the leachate recovery processing system comprises an extraction well, an extraction pipe, an extraction pump and a waste liquid recovery tank, wherein the extraction well is arranged in soil between an anode plate electrode and a cathode plate electrode, the input end of the waste liquid recovery tank is connected with an anode electrolytic cell, a cathode electrolytic cell and the extraction well through the extraction pipe, the extraction pump is arranged on the extraction pipe, and the output end of the waste liquid recovery tank is connected with an injection pipeline, so that waste liquid treated by the waste liquid recovery tank is returned to the leachate injection system for recycling.
2. The system for combined electric restoration and in-situ leaching according to claim 1, wherein the extraction well, the anode electrolytic cell and the cathode electrolytic cell are respectively provided with a real-time heavy metal concentration monitor.
3. The system for electrokinetic remediation combined with in-situ leaching according to claim 1, wherein the side of the anode electrolytic cell and the cathode electrolytic cell near the electrolysis region is provided with a first filter screen.
4. The system for electrokinetic remediation in combination with in situ leaching according to claim 1, wherein the drug storage tank stores a leaching agent therein.
5. The system for electric remediation in combination with in situ leaching according to claim 1, wherein a booster pump is disposed in the injection line.
6. The system of claim 1, wherein the extraction wells are spaced apart in the soil between the anode and cathode electrode plates, and the injection wells are located in the soil between adjacent extraction wells.
7. The system for combined electric remediation and in-situ leaching according to claim 1, wherein the injection well is provided with injection holes around the injection well, the extraction pipe is provided with suction holes around the extraction pipe, and the extraction pipe is sleeved with a second filter screen.
8. The system for electrokinetic remediation combined with in situ leaching according to claim 1, wherein the injection tubing is connected to the injection well using a threaded fitting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023194192.4U CN214391608U (en) | 2020-12-28 | 2020-12-28 | System for electronic restoration unites normal position drip washing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023194192.4U CN214391608U (en) | 2020-12-28 | 2020-12-28 | System for electronic restoration unites normal position drip washing |
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| CN214391608U true CN214391608U (en) | 2021-10-15 |
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| CN202023194192.4U Active CN214391608U (en) | 2020-12-28 | 2020-12-28 | System for electronic restoration unites normal position drip washing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474784A (en) * | 2020-12-28 | 2021-03-12 | 苏州精英环保有限公司 | System combining electric repair and in-situ leaching and repair method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474784A (en) * | 2020-12-28 | 2021-03-12 | 苏州精英环保有限公司 | System combining electric repair and in-situ leaching and repair method |
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