CN113732035A - Soil remediation device combining photocatalysis and electrolysis - Google Patents
Soil remediation device combining photocatalysis and electrolysis Download PDFInfo
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- CN113732035A CN113732035A CN202111107502.0A CN202111107502A CN113732035A CN 113732035 A CN113732035 A CN 113732035A CN 202111107502 A CN202111107502 A CN 202111107502A CN 113732035 A CN113732035 A CN 113732035A
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 86
- 239000002689 soil Substances 0.000 title claims abstract description 80
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 47
- 238000005067 remediation Methods 0.000 title claims abstract description 37
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000001179 sorption measurement Methods 0.000 claims abstract description 43
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 230000000593 degrading effect Effects 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
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- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 238000002386 leaching Methods 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 abstract description 5
- 238000003900 soil pollution Methods 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
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- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
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- 241000282414 Homo sapiens Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
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- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Catalysts (AREA)
Abstract
The invention provides a photocatalytic electrolysis combined soil remediation device, and relates to the technical field of soil pollution remediation. The washing bin of the soil remediation device combined with photocatalysis and electrolysis is used for loading soil to be leached, and the washing roller arranged in the washing bin is used for washing the soil by using the leaching solution sprayed by the washing nozzle, so that the soil is leached more uniformly, the soil is separated from pollutants more sufficiently, and the oxygen content in the soil can be increased; the electrolytic bin is used for receiving the leacheate conveyed from the washing bin, and the electrolytic electrodes in the electrolytic bin are used for adsorbing heavy metals in the leacheate through electrolyte, so that the heavy metals in the leacheate can be gathered, and the soil remediation effect is improved; the photocatalytic adsorption bin is used for receiving the leacheate conveyed from the electrolysis bin, the photocatalytic material in the photocatalytic adsorption bin is used for degrading organic matters in the leacheate, and the adsorption material is used forAdsorbing degraded organic matter to reduce H2S、NH3And the gas is discharged into the air, so that the secondary pollution is reduced.
Description
Technical Field
The invention relates to the technical field of soil pollution remediation, in particular to a photocatalytic electrolysis combined soil remediation device.
Background
The soil is always humanThe soil pollution phenomenon is intensified along with the use of industry and large-dose pesticides and fertilizers, and serious threats are generated to underground water resources, soil fertility, air pollution, grain safety and the like. Compared with water and atmospheric pollution, the soil pollution has concealment, hysteresis and irreversibility. At present, heavy metal pollution is particularly prominent because it is difficult to degrade, and can cause soil pollution to be basically irreversible. Secondly, some organic matters which are difficult to degrade enter the soil, exceed the self-cleaning capacity of the soil, seriously threaten the production and life of human beings, and simultaneously emit NH when the organic matters of the soil are degraded under the action of anaerobic microorganisms3、H2S and other gases cause the soil fertility to be reduced, secondary pollution is generated, and loss is caused to the comfort of a human body and economy.
Disclosure of Invention
The invention aims to provide a soil remediation device combined with photocatalysis and electrolysis, which can perform ex-situ purification and remediation on most polluted soil, has a simple structure and is easy to assemble.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a soil remediation device combining photocatalytic electrolysis, comprising:
the washing bin is used for loading soil to be leached, a washing spray head and a washing roller are arranged in the washing bin, the washing spray head is used for spraying leacheate, and the washing roller is used for washing the soil by using the leacheate;
the electrolytic bin is communicated with the washing bin and is used for receiving the leacheate conveyed from the washing bin, electrolyte and an electrolytic electrode are loaded in the electrolytic bin, and the electrolytic electrode is used for adsorbing heavy metals in the leacheate through the electrolyte;
the photocatalytic adsorption bin is communicated with the electrolysis bin and is used for receiving the leacheate conveyed from the electrolysis bin, a photocatalytic material and an adsorption material are loaded in the photocatalytic adsorption bin, the photocatalytic material is used for degrading organic matters in the leacheate, and the adsorption material is used for adsorbing the degraded organic matters.
In an optional embodiment, a motor is further mounted on the washing bin, and an output shaft of the motor is connected with the washing drum.
In an alternative embodiment, the electrolysis bin is positioned below the washing bin, and a connecting pipe communicated with the inside of the electrolysis bin is arranged on the bottom wall of the washing bin.
In an optional embodiment, the photocatalytic adsorption bin is positioned at the side of the electrolytic bin, and a connecting pipe communicated with the inside of the photocatalytic adsorption bin is arranged on the side wall of the electrolytic bin.
In an alternative embodiment, the soil remediation device using photocatalytic electrolysis in combination further comprises:
the solar panel is arranged on the outer side wall of the electrolytic bin;
and the storage battery is electrically connected with the solar panel and the electrolysis electrode and is used for storing the electric energy generated by the solar panel.
In an alternative embodiment, the soil remediation device using photocatalytic electrolysis in combination further comprises:
and the control unit is connected with the storage battery and used for controlling the storage battery to supply power to the electric element according to a preset program.
In an alternative embodiment, both the accumulator and the control unit are mounted on the outer side wall of the electrolytic cell.
In an optional embodiment, the top plate of the photocatalytic adsorption bin is a transparent cover plate, and the transparent cover plate is used for transmitting sunlight so that the sunlight irradiates the photocatalytic material.
In an alternative embodiment, the soil remediation device using photocatalytic electrolysis in combination further comprises:
the ultraviolet lamp is arranged inside the photocatalytic adsorption bin and used for irradiating the photocatalytic material under the condition of no sunlight.
In an alternative embodiment, the photocatalytic material comprises TiO2The adsorbent material comprises biochar and zeolite.
The soil remediation device combining photocatalysis and electrolysis provided by the embodiment of the invention has the beneficial effects that:
1. the polluted soil is leached in the washing bin by using the washing roller, so that the soil can be leached more uniformly, the soil and pollutants can be separated more fully, and meanwhile, the oxygen content in the soil can be increased;
2. the electrolytic leacheate is electrolyzed by the electrolytic electrode in the electrolytic bin, so that heavy metals in the leacheate can be gathered, and the soil remediation effect is improved;
3. utilize photocatalysis material can degrade the macromolecule organic matter in photocatalysis absorption storehouse, rethread adsorption material is fixed to the organic matter absorption after the degradation, moreover, photocatalysis absorption storehouse can effectively reduce H2S、NH3And the gas is discharged into the air, so that the secondary pollution is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a soil remediation device combining photocatalytic electrolysis provided by an embodiment of the invention;
fig. 2 is a schematic top view of the washing chamber of fig. 1.
Icon: 1-a soil remediation device with combined photocatalytic and electrolytic use; 2-a washing bin; 3-washing the spray head; 4-washing the drum; 5, a motor; 6-connecting pipe; 7-a water pump; 8-an electrolysis bin; 9-an electrolysis electrode; 10-photocatalytic adsorption cabin; 11-ultraviolet lamp; 12-a photocatalytic material; 13-adsorbent material.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The soil washing technology can be used for treating or pretreating soil polluted by radioactive substances, organic substances, heavy metals or other inorganic substances. In general, the photocatalytic oxidation reaction actually degrades organic substances into carbon dioxide and water using light as energy and a semiconductor as a catalyst. Titanium dioxide particles, a common photocatalytic material, are inherently stable, but TiO2After absorbing the energy of ultraviolet light, electrons can be released, the potential vacated by the released electrons forms an electric field with the electrons to degrade organic macromolecules, and when the energy is weakened, the electrons return to TiO2In particles, thus in TiO2The photocatalyst can effectively avoid catalyst materialAnd (4) material loss. Meanwhile, materials such as the biochar, the zeolite and the like have good adsorption performance on heavy metals and nitrogen and phosphorus elements and are easy to prepare, the nitrogen and phosphorus elements can be effectively prevented from escaping after the organic matters in the leaching water are degraded, and secondary pollution is effectively avoided.
Referring to fig. 1, according to the above analysis, the present embodiment provides a soil remediation device 1 combining photocatalytic electrolysis, which can perform ex-situ purification and remediation on most contaminated soil, and has a simple structure and easy assembly.
The soil remediation device 1 combining photocatalysis and electrolysis comprises a washing bin 2, a washing spray head 3, a washing roller 4, a motor 5, a connecting pipe 6, an electrolysis bin 8, electrolyte, an electrolysis electrode 9, a photocatalysis adsorption bin 10, a solar panel, a storage battery, a control unit, an ultraviolet lamp 11, a photocatalysis material 12 and an adsorption material 13.
Referring to fig. 1 and 2, a washing bin 2 is used for loading soil to be washed, a washing nozzle 3 and a washing roller 4 are installed inside the washing bin, the washing nozzle 3 is installed at the top of the washing bin 2, the number and the size of the washing nozzle 3 can be adjusted according to the size of the washing bin 2, the washing nozzle 3 is used for spraying an leacheate which can be tap water or a soil repairing agent, the washing roller 4 is used for washing the soil by using the leacheate, an output shaft of a motor 5 is connected with the washing roller 4, specifically, both sides of the washing roller 4 are provided with motors 5, and the motors 5 drive the washing roller 4 to uniformly mix the polluted soil under the power-on condition. Therefore, the polluted soil is leached in the washing bin 2 by the washing roller 4, so that the soil can be leached more uniformly, the soil and pollutants can be separated more sufficiently, and meanwhile, the oxygen content in the soil can be increased.
The bottom of the washing bin 2 can be further provided with a light sensing unit, and the light sensing unit is used for monitoring the potential difference formed by different valence states of heavy metal, determining the content of heavy metal elements in the leacheate and predicting whether to elute soil at the position.
The electrolysis chamber 8 is located below the washing chamber 2, a connecting pipe 6 communicated to the inside of the electrolysis chamber 8 is arranged on the bottom wall of the washing chamber 2, and the connecting pipe 6 can be a PVC water pipe. The electrolytic bin 8 receives the leacheate conveyed from the washing bin 2 through the connecting pipe 6, electrolyte and an electrolytic electrode 9 are loaded in the electrolytic bin 8, the electrolytic electrode 9 is an oxidation-reduction electrode, specifically can be a graphite electrode, the electrolytic electrode 9 comprises an anode and a cathode, and the electrolytic electrode 9 is used for adsorbing heavy metals in the leacheate. Thus, the electrolytic leaching solution is electrolyzed by the electrolytic electrode 9 in the electrolytic bin 8, so that the heavy metal in the leaching solution is gathered, and the soil remediation effect is improved.
The bottom of the electrolytic bin 8 is provided with a water pumping device (not shown in the figure) and an ion detector (not shown in the figure), wherein the water pumping device can adopt a 12V direct current micro submersible pump, the rated power of the water pump is 60W, and the direct current input is 12 VDC/3A. Under the condition of electrifying, the eluent is also in an electrified state, anions are mainly concentrated on the anode, cations are mainly concentrated on the cathode, so that the ion detector of the eluent near the cathode brightens the ion detection lamp under the action of increasing the ion concentration, and then the ion detection lamp and the photosensitive resistor under the condition of avoiding external light are used for reducing the resistance value of the photosensitive resistor and increasing the current while increasing the light intensity, so that the voltage value of the water pumping device connected with the photosensitive resistor reaches the working voltage, the water pumping device works, and the eluent in the electrolytic bin 8 is discharged.
The photocatalytic adsorption bin 10 is located on the side of the electrolytic bin 8, a connecting pipe 6 communicated to the inside of the photocatalytic adsorption bin 10 is arranged on the side wall of the electrolytic bin 8, a water suction pump 7 can be installed in the connecting pipe 6, the water suction pump 7 is used for pumping leacheate in the electrolytic bin 8 into the photocatalytic adsorption bin 10, the photocatalytic adsorption bin 10 is used for receiving leacheate conveyed from the electrolytic bin 8, photocatalytic materials 12 and adsorption materials 13 are loaded in the photocatalytic adsorption bin 10, and the photocatalytic materials 12 comprise TiO2And a trace amount of magnesium oxide, and the adsorbing material 13 includes biochar and zeolite. The side wall of the photocatalytic adsorption bin 10 is also provided with a water outlet for discharging leacheate.
The photocatalytic material 12 is used for degrading organic matters in the leacheate, and the adsorbing material 13 is used for adsorbing the degraded organic matters. Like this, utilize photocatalysis material 12 can degrade the macromolecule organic matter in photocatalysis adsorption storehouse 10, rethread adsorption material 13 is fixed to the organic matter absorption after the degradation, and in addition, photocatalysis adsorption storehouse 10 can effectively reduce H2S、NH3And the gas is discharged into the air, so that the secondary pollution is reduced.
The top plate of the photocatalytic adsorption bin 10 is a transparent cover plate, and the transparent cover plate is used for transmitting sunlight so that the sunlight irradiates the photocatalytic material 12.
The ultraviolet lamp 11 is installed inside the photocatalytic adsorption bin 10, and the ultraviolet lamp 11 is used for irradiating the photocatalytic material 12 under the condition of no sunlight.
Solar panel (not shown in the figure), battery (not shown in the figure) and the control unit (not shown in the figure) are installed on the lateral wall of electrolysis storehouse 8, and the battery is connected with solar panel and control unit electricity, and the battery is used for storing the electric energy that solar panel produced, and control unit is used for controlling the battery to supply power to the electric element according to preset program. The electric elements comprise a motor 5, a water pumping device, a light sensing unit, a water pump 7, an ultraviolet lamp 11 and the like.
The working principle of the photocatalytic electrolysis combined soil remediation device 1 provided by the embodiment is as follows:
firstly, the solar panel generates electricity, and the generated unstable current is converted into stable constant-voltage direct current through the control unit and the storage battery, so that voltage is provided for the two electrolysis electrodes 9, the water pumping device, the water pumping pump 7 and the motor 5.
Secondly, the heavy metal in the soil is brought into the leacheate by leaching and enters the electrolytic bin 8, anions are concentrated on the anode and cations are concentrated on the cathode due to the action of metal ions in the electrolytic bin 8, and the heavy metal polluted soil is repaired by removing the metal ions collected by the cathode.
In addition, for the soil polluted by the macromolecular organic matters which are difficult to degrade, the solution can be discharged into the photocatalytic adsorption bin 10 after electrolysis, the organic matters are fixed into the adsorption material 13 under the action of the adsorption material 13, and the organic matters are degraded through the photocatalytic material 12.
The actual use process of the photocatalytic electrolysis combined soil remediation device 1 provided by the embodiment is as follows:
1. and collecting materials, and assembling the soil remediation device 1 combined with photocatalysis and electrolysis.
2. The upper part of the washing bin 2 is filled with an eluent of soil, the soil is added into the washing bin 2, then the motor 5 is started to drive the washing roller 4 to carry out leaching, and the eluent enters the electrolytic bin 8 through the connecting pipe 6.
3. In the electrolytic bin 8, the storage battery supplies power to the electrolytic electrode 9, heavy metal elements in the leacheate are gathered at the negative electrode through the electrolytic action, the negative electrode is taken out and cleaned at intervals, and the leacheate after electrolysis is conveyed to the photocatalytic adsorption bin 10.
4. In sunny days, the photocatalytic material 12 in the photocatalytic adsorption bin 10 absorbs energy to degrade macromolecular organic matters in soil, the ultraviolet lamp 11 can be turned on at night or in rainy days to provide a light condition for photocatalytic reaction, and the adsorbing material 13 well fixes the organic matters while the photocatalytic reaction occurs to prevent the organic matters from escaping.
5. When the soil without organic pollution is repaired, the photocatalytic adsorption bin 10 can be closed, and water is directly discharged after electrolytic repair.
The soil remediation device 1 combining photocatalysis and electrolysis provided by the embodiment has the beneficial effects that:
1. the device has a simple structure, raw materials can be subjected to ex-situ purification and remediation on most polluted soil through the combination of a plurality of treatment units, and the device has a simple structure and is easy to assemble;
2. the washing of the polluted soil can be carried out while the washing roller 4 rotates, so that the soil can be washed more uniformly, the soil and pollutants can be separated more sufficiently, and meanwhile, the oxygen content in the soil can be increased;
3. the heavy metals can be gathered through solar power supply and electrolysis, the soil remediation effect is improved, and meanwhile, the energy consumption in the running process of the device can be reduced through solar power supply;
4. by TiO2The photocatalytic degradation of macromolecular organic matters, the photocatalytic adsorption bin 10 is a closed bin body, and can effectively reduce H2S、NH3When the gas is discharged into the air, the degraded substances are adsorbed and fixed by the adsorbing materials 13 such as biochar, and the like, so that the secondary pollution is reduced;
5. the solar power generation, the electric restoration and the photocatalytic restoration are adopted to improve the reuse rate and the purification efficiency of the polluted soil, and the method is suitable for the treatment of the industrial soil with most complex pollutants and the recovery and removal of the pollutants.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a soil prosthetic devices that photocatalysis electrolysis allies oneself with, its characterized in that, soil prosthetic devices that photocatalysis electrolysis allies oneself with includes:
the washing bin (2) is used for loading soil to be washed, a washing spray head (3) and a washing roller (4) are installed inside the washing bin, the washing spray head (3) is used for spraying an leacheate, and the washing roller (4) is used for washing the soil by using the leacheate;
the electrolytic bin (8) is communicated with the washing bin (2) and is used for receiving the leacheate conveyed from the washing bin (2), electrolyte and an electrolytic electrode (9) are loaded in the electrolytic bin (8), and the electrolytic electrode (9) is used for adsorbing heavy metals in the leacheate through the electrolyte;
the photocatalytic adsorption bin (10) is communicated with the electrolysis bin (8) and is used for receiving the leacheate conveyed from the electrolysis bin (8), a photocatalytic material (12) and an adsorption material (13) are loaded in the photocatalytic adsorption bin (10), the photocatalytic material (12) is used for degrading organic matters in the leacheate, and the adsorption material (13) is used for adsorbing the degraded organic matters.
2. The soil remediation device with combined photocatalytic and electrolytic use as claimed in claim 1, wherein a motor (5) is further mounted on the washing bin (2), and an output shaft of the motor (5) is connected with the washing drum (4).
3. The soil remediation device with combined photocatalytic and electrolysis according to claim 1, wherein the electrolysis bin (8) is located below the washing bin (2), and a connecting pipe (6) communicated with the inside of the electrolysis bin (8) is arranged on the bottom wall of the washing bin (2).
4. The soil remediation device with combined photocatalytic and electrolytic use according to claim 1, wherein the photocatalytic adsorption bin (10) is located on the side of the electrolytic bin (8), and a connecting pipe (6) communicated with the inside of the photocatalytic adsorption bin (10) is arranged on the side wall of the electrolytic bin (8).
5. The photocatalytic electrolysis combined soil remediation device of claim 1 further comprising:
the solar panel is arranged on the outer side wall of the electrolytic bin (8);
the storage battery is electrically connected with the solar panel and the electrolysis electrode (9), and the storage battery is used for storing the electric energy generated by the solar panel.
6. The photocatalytic electrolysis combined soil remediation device of claim 5 further comprising:
and the control unit is connected with the storage battery.
7. The soil remediation device with combined photocatalytic and electrolytic use according to claim 6, wherein the storage battery and the control unit are both mounted on an outer side wall of the electrolytic bin (8).
8. The soil remediation device with combined photocatalytic and electrolytic use according to claim 1, wherein the top plate of the photocatalytic adsorption bin (10) is a transparent cover plate, and the transparent cover plate is used for transmitting sunlight so that the sunlight can irradiate the photocatalytic material (12).
9. The photocatalytic electrolysis combined soil remediation device of claim 1 further comprising:
the ultraviolet lamp (11) is installed inside the photocatalytic adsorption bin (10), and the ultraviolet lamp (11) is used for irradiating the photocatalytic material (12) under the condition of no sunlight.
10. Photocatalytic-electrolysis combined soil remediation device according to claim 1, characterized in that the photocatalytic material (12) comprises TiO2The adsorbent material (13) comprises biochar and zeolite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107502.0A CN113732035A (en) | 2021-09-22 | 2021-09-22 | Soil remediation device combining photocatalysis and electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107502.0A CN113732035A (en) | 2021-09-22 | 2021-09-22 | Soil remediation device combining photocatalysis and electrolysis |
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990024785A (en) * | 1997-09-08 | 1999-04-06 | 이규철 | Wastewater treatment system using electrolysis and photocatalyst and synthetic method of the catalyst |
| CN203091406U (en) * | 2012-12-25 | 2013-07-31 | 浙江工商大学 | Reactor for treating contaminated soil with low-temperature plasma and photocatalysis |
| CN104787842A (en) * | 2014-01-20 | 2015-07-22 | 广州贝特缪斯能源科技有限公司 | Novel electrochemical/photocatalysis circulating cooling water treatment device |
| CN204638708U (en) * | 2015-02-09 | 2015-09-16 | 许金振 | The drip washing prosthetic device of drum-type contaminated soil |
| CN204657095U (en) * | 2015-05-25 | 2015-09-23 | 青岛科技大学 | Heavy-metal contaminated soil dystopy process integrated apparatus |
| CN105618473A (en) * | 2014-10-30 | 2016-06-01 | 黑龙江省聚拢乾坤农业技术开发有限公司 | Soil remediation device |
| CN106238451A (en) * | 2016-10-12 | 2016-12-21 | 北京高能时代环境技术股份有限公司 | A kind of waste residue containing heavy metal or the drip washing technique of soil and device |
| CN106268738A (en) * | 2015-06-08 | 2017-01-04 | 清华大学 | Chlorinated aromatic organic material contaminated soil repairs photocatalysis treatment device and the dedicated optical catalysis composite plate thereof of leacheate |
| CN205966753U (en) * | 2016-08-10 | 2017-02-22 | 广州市金龙峰环保设备工程有限公司 | Little electrolysis prosthetic devices of soil of solar energy power supply |
| CN107297384A (en) * | 2017-08-17 | 2017-10-27 | 山东省环科院环境工程有限公司 | A kind of soil heterotopic elution screening interlock control system and its elution method for sieving |
| CN108015106A (en) * | 2018-01-31 | 2018-05-11 | 江苏省环境科学研究院 | Heavy-metal contaminated soil elution is repaired and leacheate regeneration integrated apparatus and its method |
| CN108672487A (en) * | 2018-06-06 | 2018-10-19 | 浙江理工大学 | A kind of device and method of photocatalysis repairing polluted soil |
| CN109207154A (en) * | 2018-09-11 | 2019-01-15 | 武汉大学 | It is a kind of to compound eluent and its ELUTION METHOD and eluent recovery process for repairing organic and heavy-metal composite pollution soil |
| CN109675919A (en) * | 2019-01-24 | 2019-04-26 | 圣清环保股份有限公司 | A kind of preparation and elution engineering practice method in situ of heavy metal pollution of soil leacheate |
| CN109954748A (en) * | 2017-12-26 | 2019-07-02 | 湖南泰华科技检测有限公司 | A kind of detection system and its restorative procedure for The Heavy Metal Contaminated Soil |
| CN210231002U (en) * | 2019-07-04 | 2020-04-03 | 南京信息工程大学 | Solar-driven ex-situ automatic polluted soil remediation device |
| CN111515235A (en) * | 2020-04-26 | 2020-08-11 | 中国电建集团中南勘测设计研究院有限公司 | Remediation system and remediation method for chemical leaching-thermal desorption of composite contaminated soil |
| CN112588806A (en) * | 2020-12-25 | 2021-04-02 | 苏州精英环保有限公司 | Integrated high-efficiency leaching equipment for heavy metal contaminated soil |
| CN112620339A (en) * | 2020-12-21 | 2021-04-09 | 苏州精英环保有限公司 | A high-efficient reaction separation drip washing device for heavy metal contaminated soil |
-
2021
- 2021-09-22 CN CN202111107502.0A patent/CN113732035A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990024785A (en) * | 1997-09-08 | 1999-04-06 | 이규철 | Wastewater treatment system using electrolysis and photocatalyst and synthetic method of the catalyst |
| CN203091406U (en) * | 2012-12-25 | 2013-07-31 | 浙江工商大学 | Reactor for treating contaminated soil with low-temperature plasma and photocatalysis |
| CN104787842A (en) * | 2014-01-20 | 2015-07-22 | 广州贝特缪斯能源科技有限公司 | Novel electrochemical/photocatalysis circulating cooling water treatment device |
| CN105618473A (en) * | 2014-10-30 | 2016-06-01 | 黑龙江省聚拢乾坤农业技术开发有限公司 | Soil remediation device |
| CN204638708U (en) * | 2015-02-09 | 2015-09-16 | 许金振 | The drip washing prosthetic device of drum-type contaminated soil |
| CN204657095U (en) * | 2015-05-25 | 2015-09-23 | 青岛科技大学 | Heavy-metal contaminated soil dystopy process integrated apparatus |
| CN106268738A (en) * | 2015-06-08 | 2017-01-04 | 清华大学 | Chlorinated aromatic organic material contaminated soil repairs photocatalysis treatment device and the dedicated optical catalysis composite plate thereof of leacheate |
| CN205966753U (en) * | 2016-08-10 | 2017-02-22 | 广州市金龙峰环保设备工程有限公司 | Little electrolysis prosthetic devices of soil of solar energy power supply |
| CN106238451A (en) * | 2016-10-12 | 2016-12-21 | 北京高能时代环境技术股份有限公司 | A kind of waste residue containing heavy metal or the drip washing technique of soil and device |
| CN107297384A (en) * | 2017-08-17 | 2017-10-27 | 山东省环科院环境工程有限公司 | A kind of soil heterotopic elution screening interlock control system and its elution method for sieving |
| CN109954748A (en) * | 2017-12-26 | 2019-07-02 | 湖南泰华科技检测有限公司 | A kind of detection system and its restorative procedure for The Heavy Metal Contaminated Soil |
| CN108015106A (en) * | 2018-01-31 | 2018-05-11 | 江苏省环境科学研究院 | Heavy-metal contaminated soil elution is repaired and leacheate regeneration integrated apparatus and its method |
| CN108672487A (en) * | 2018-06-06 | 2018-10-19 | 浙江理工大学 | A kind of device and method of photocatalysis repairing polluted soil |
| CN109207154A (en) * | 2018-09-11 | 2019-01-15 | 武汉大学 | It is a kind of to compound eluent and its ELUTION METHOD and eluent recovery process for repairing organic and heavy-metal composite pollution soil |
| CN109675919A (en) * | 2019-01-24 | 2019-04-26 | 圣清环保股份有限公司 | A kind of preparation and elution engineering practice method in situ of heavy metal pollution of soil leacheate |
| CN210231002U (en) * | 2019-07-04 | 2020-04-03 | 南京信息工程大学 | Solar-driven ex-situ automatic polluted soil remediation device |
| CN111515235A (en) * | 2020-04-26 | 2020-08-11 | 中国电建集团中南勘测设计研究院有限公司 | Remediation system and remediation method for chemical leaching-thermal desorption of composite contaminated soil |
| CN112620339A (en) * | 2020-12-21 | 2021-04-09 | 苏州精英环保有限公司 | A high-efficient reaction separation drip washing device for heavy metal contaminated soil |
| CN112588806A (en) * | 2020-12-25 | 2021-04-02 | 苏州精英环保有限公司 | Integrated high-efficiency leaching equipment for heavy metal contaminated soil |
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Application publication date: 20211203 |