CN212216589U - Ectopic leaching system for treating heavy metal contaminated soil - Google Patents
Ectopic leaching system for treating heavy metal contaminated soil Download PDFInfo
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- CN212216589U CN212216589U CN202020688362.5U CN202020688362U CN212216589U CN 212216589 U CN212216589 U CN 212216589U CN 202020688362 U CN202020688362 U CN 202020688362U CN 212216589 U CN212216589 U CN 212216589U
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- leachate
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- 238000002386 leaching Methods 0.000 title claims abstract description 103
- 239000002689 soil Substances 0.000 title claims abstract description 73
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 50
- 238000005507 spraying Methods 0.000 claims abstract description 57
- 238000003860 storage Methods 0.000 claims abstract description 39
- 238000011084 recovery Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000004062 sedimentation Methods 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 16
- 238000011066 ex-situ storage Methods 0.000 claims description 13
- 238000012216 screening Methods 0.000 claims description 11
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 238000005067 remediation Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000013049 sediment Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013048 microbiological method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
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Abstract
The utility model discloses an ectopic leaching system for treating heavy metal contaminated soil, which comprises a leaching tank, a leaching solution storage tank and a leachate recovery unit; a movable spraying system is arranged above the leaching tank through a leaching travelling crane to leach heavy metal contaminated soil in the leaching tank, and a leachate collecting pipe is laid at the bottom of the leaching tank; the leacheate storage tank is communicated with the spraying system; the leachate recovery unit comprises a leachate recovery tank and a filter press, the leachate recovery tank is communicated with a leachate collecting pipe, a sedimentation tank is arranged in the leachate recovery tank, and a bottom sludge outlet at the bottom of the sedimentation tank is connected to the filter press to perform solid-liquid separation on the bottom sludge. The utility model discloses simple structure is applicable to the soil remediation engineering project that pollutes soil volume greatly, and the processing time is short.
Description
Technical Field
The utility model belongs to the soil treatment technology, concretely relates to ectopic drip washing system for administering heavy metal contaminated soil.
Background
Heavy metals in the polluted soil have the characteristics of long retention time in the soil, concealment, poor fluidity and reversibility in the soil and the like, are not easily and completely naturally degraded by organisms and microorganisms in the nature, and finally enter the human body through the enrichment action of a food chain, so that the human health is harmed. In addition, the shortage of available land resources in China, the soil pollution causes the available soil resources to be reduced, the treatment time of the soil pollution is very long, the generated harm is irreversible, the sustainable development of economy in China is seriously influenced, and therefore the treatment and the repair of the heavy metal in the soil are urgent.
The remediation of heavy metal contaminated soil mainly has two ways: firstly, the existence state of heavy metal is changed, the activity of the heavy metal is reduced, the heavy metal is stabilized, the heavy metal is separated from a food chain, and the toxicity of the heavy metal is reduced; and secondly, the heavy metals in the soil are taken out of the soil body by planting hyper-enrichment plants, then the plants are removed, or the heavy metals are changed into soluble state and free state by using engineering technology, then the heavy metals in leacheate are collected after leaching, and thus the dual purposes of recovering the heavy metals and reducing the heavy metals in the soil are achieved. At present, the measures for remedying the heavy metal contaminated soil at home and abroad mainly comprise: (1) physical remediation comprises a soil-filling method, a thermal desorption method, a vitrification technology and the like; (2) the chemical restoration mainly comprises a leaching method, a stabilizing method and the like; (3) the biological method mainly comprises a microbiological method and a plant method.
The soil leaching method is an efficient remediation method which can act on the heavy metals in the soil in a short time due to the characteristics of simple process, capability of effectively reducing the content of the heavy metals in the soil, capability of recovering the heavy metals and the like. The soil ex-situ leaching technology is to take out polluted soil, fully mix and react an eluent and the polluted soil, filter the polluted soil, and remove heavy metals by reduction and precipitation methods.
Disclosure of Invention
The utility model provides a technical problem be: aiming at the problems of low treatment efficiency, complex treatment process and high cost in the existing soil ex-situ leaching technology, the ex-situ leaching system for treating the heavy metal polluted soil is provided with simple process and short treatment time.
The utility model discloses a following technical scheme realizes:
an ex-situ leaching system for treating heavy metal contaminated soil comprises a leaching tank 21, a leaching solution storage tank 4 and a leachate recovery unit;
a movable spraying system is arranged above the leaching tank 21 through a leaching travelling crane 25 to leach the heavy metal contaminated soil in the leaching tank 21, and a leachate collecting pipe 23 is laid at the bottom of the leaching tank 21;
the leacheate storage tank 4 is communicated with a spraying system;
the leachate recovery unit comprises a leachate recovery tank 31 and a filter press 32, the leachate recovery tank 31 is communicated with a leachate collecting pipe 23, a sedimentation tank is arranged inside the leachate recovery tank 31, and a bottom sludge outlet at the bottom of the sedimentation tank is connected to the filter press 32 to perform solid-liquid separation on the bottom sludge.
In the ectopic leaching system in the above scheme, the bottom of the leaching tank 21 is provided with a leachate collecting tank 22 communicated with a leachate collecting pipe 23, and the leachate recycling tank 31 is communicated with the leachate collecting pipe 23 through the leachate collecting tank 22.
In the ectopic leaching system in the above scheme, the leaching tank 21 is provided with a temporary storage tank 24 of the leaching solution communicated with the spraying system, and the storage tank 4 of the leaching solution is communicated with the spraying system through the temporary storage tank 24 of the leaching solution.
In the ectopic leaching system in the above scheme, the spraying system comprises a spraying pump 253, a spraying pipe 254 and a spraying nozzle 255, the spraying pump 253 is fixed on the leaching traveling crane 25 and moves together with the traveling crane, the spraying nozzles 255 are arranged on the leaching traveling crane 25 along the span direction of the leaching traveling crane, and the spraying pipe 254 communicates the spraying pump 253, the spraying nozzles 255 and the temporary storage tank 24 of the leaching solution to form the spraying system.
In the ectopic leaching system in the above-mentioned scheme, the temporary storage tank 24 of the leaching solution is arranged on one side of the leaching tank 21 along the traveling direction of the leaching travelling crane, and the spray pipe 254 connected with the inlet of the spray pump 253 is suspended and extended to the position below the liquid level of the temporary storage tank 24 of the leaching solution.
In the ectopic leaching system in the above scheme, the shower pipe 254 is provided with a flow control valve.
In the ectopic leaching system in the above scheme, the clear liquid outlet at the top of the sedimentation tank of the leachate recovery tank 31 is communicated with the leachate storage tank 4 in a backflow manner.
In the ectopic leaching system in the above scheme, the bottom sludge outlet of the filter press 32 is communicated with the bottom sludge collecting tank 33, and the filtrate outlet is communicated with the leachate recovery tank 31 in a backflow manner.
In the above-mentioned variant washing system, the soil-breaking primary screening device 11 is further included for feeding the washing tank 21.
The utility model discloses following beneficial effect has:
the utility model sprays by the travelling crane, the single batch treatment capacity is large, and the treatment efficiency is improved; the removal effect of the chromium-degrading bacteria liquid as the leacheate on the heavy metal chromium in the soil can reach a higher level, the remediation effect can be greatly improved, the heavy metal residual quantity in the soil is remarkably reduced, and the leachate after solid-liquid separation is repeatedly recycled as the leacheate, so that compared with the chemical leacheate, the treatment cost for the leachate is not required to be additionally set, and the overall treatment cost is reduced. The utility model discloses select for use corresponding leacheate kind to different kinds of heavy metal contaminated soil, not only be applicable to the drip washing of chromium heavy metal contaminated soil, the drip washing that can be used for other heavy metal contaminated soil equally is restoreed.
To sum up, the utility model discloses simple structure is applicable to the soil remediation engineering project that the contaminated soil volume is big, and the processing time is short.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic view of the overall structure of an ex-situ leaching system for treating heavy metal contaminated soil in an embodiment.
FIG. 2 is a schematic sectional view of the leaching tank in the example.
Reference numbers in the figures: 11-soil crushing primary screening equipment, 21-leaching tank, 22-leachate collecting tank, 23-leachate collecting pipe, 24-leachate temporary storage tank, 25-leaching traveling crane, 31-leachate recycling tank, 32-filter press, 33-bottom mud collecting tank, 4-leachate storage tank, 251-speed reduction motor, 252-bridge crane double-wheel rim wheel set, 253-spray pump, 254-spray pipe and 255-spray nozzle.
Detailed Description
Examples
Referring to fig. 1 and 2, the dystopy leaching system to heavy metal pollution soil improvement in the figure is the specific embodiment of the utility model, is specifically used for the soil improvement of metal chromium pollution, including the broken primary screening equipment 11 of soil, leaching tank 21, leachate collecting tank 22, leachate collecting pipe 23, the temporary storage tank 24 of leacheate, leaching vehicle 25, leachate recovery tank 31, pressure filter 32, sediment collecting tank 33, leacheate storage tank 4 and the last spraying system that sets up of leaching vehicle 25, etc.
The spray tank 21 provides the primary space of drip washing treatment process, the heavy metal contaminated soil to be treated is laid through the primary screening equipment 11 of soil breakage inside the spray tank 21, the movable spraying system is arranged above the spray tank 21 through the drip washing travelling crane 25, the spraying system is communicated with the drip washing liquid storage tank 4, the heavy metal contaminated soil laid inside the spray tank 21 is uniformly sprayed with the drip washing liquid for spray treatment, the percolate collecting pipe 23 is laid at the bottom of the spray tank 21, the percolate for treating the infiltrated contaminated soil is collected, and the collected percolate is recycled.
The discharge hole of the primary soil crushing and screening device 11 is communicated with the leaching tank 21, and the primary soil crushing and screening device 11 is used, so that the system processing load can be reduced, and feeding is facilitated. The broken elementary screening equipment 11 of soil in this embodiment uses ALLU screening crushing scraper bowl, can carry out crushing and screening with the contaminated soil after airing to reduce the soil particle diameter, and transfer the contaminated soil after crushing and screening to drench washing tank 21 in, its easy operation is convenient, portable.
The leaching tank 21 of the present embodiment is provided with a temporary storage tank 24 for leacheate, which is communicated with the spraying system, for temporarily storing the leacheate in the leaching tank 21, and the liquid outlet of the leacheate storage tank 4 is communicated with the spraying system through the temporary storage tank 24 for leacheate. The leaching tank 21 bottom is equipped with the leachate collecting pit 22 with leachate collecting pipe 23 intercommunication, and the inside leachate of leaching tank 21 is unified to be collected in leachate collecting pit 22 through leachate collecting pipe 23, concentrates the collection to the leachate that produces in the leaching tank 21, and leachate recovery tank 31 passes through leachate collecting pit 22 intercommunication, carries out unified recovery processing to the leachate of collecting.
Specifically, as shown in fig. 2, the leaching crane 25 adopts a bridge crane structure, two sides of the bridge crane move across the tops of the trough edges at two sides of the leaching tank 21 through a double-wheel-edge wheel set 252 of the bridge crane, and the leaching crane 25 is driven to move by itself through a speed reduction motor 251. The spraying system in the spraying groove 21 comprises a spraying pump 253, spraying pipes 254 and spraying nozzles 255, the spraying pump 253 is fixed on one side of the leaching travelling crane 25, a water inlet of the spraying pump 253 is communicated to the temporary storage tank 24 of the leaching solution through the spraying pipes 254, the spraying nozzles 255 are arranged on the leaching travelling crane 25 along the span direction of the leaching travelling crane, all the spraying nozzles 255 are communicated with a water outlet of the spraying pump 253 through the spraying pipes 254 to form a whole spraying system, the spraying pump 253 collects the leaching solution in the temporary storage tank 24 of the leaching solution to each spraying nozzle 255 for spraying, and the whole spraying system moves along with the leaching travelling crane 25.
In order to ensure that the spray pump 253 can pump the leacheate into the temporary leacheate storage tank 24 through the spray pipe 254 in real time, in the embodiment, the temporary leacheate storage tank 24 is arranged on one side, close to the spray pump 253, of the leaching tank 21 in the traveling direction of the leaching trolley, and the spray pipe 254 connected with the inlet of the spray pump 253 is suspended below the liquid level of the temporary leacheate storage tank 24, so that the spray pipe 254 always moves in the temporary leacheate storage tank 24 in the process that the spray pump 253 and the spray pipe 254 move along with the leaching trolley.
The spray pipe 254 is provided with a flow control valve (not shown in the figure) with a flowmeter, the flow control and flow monitoring of the spray pump to the leacheate can be realized through the flow control valve, the feeding speed and the feeding amount of the leacheate can be conveniently controlled, and the proportion of the leacheate to the soil is controlled so as to achieve the best treatment effect. The spray pipe 254 in this embodiment is a plastic pipe, and the amount of the leacheate to be controlled is 0.0056m3And/s entering a leaching system for spraying.
Referring again to fig. 1, the embodiment forms a leachate recovery unit for recovering and treating leachate by means of a leachate recovery tank 31 and a filter press 32, wherein the percolate recovery tank 31 is communicated with a percolate collecting tank 22 at the bottom of the leaching tank 21, percolate which finishes heavy metal pollution treatment in the leaching tank 21 enters the percolate collecting tank 22 through a percolate collecting pipe 23 and is then uniformly collected in the percolate recovery tank 31, a sedimentation tank is arranged in the percolate recovery tank 31, the leachate is precipitated and separated, a bottom mud outlet at the bottom of the sedimentation tank is connected to a filter press 32, the filter press 32 adopts a plate and frame filter press, carry out solid-liquid separation to the bed mud through the filter-pressing, the export of the sedimentation tank top clear solution of filtration liquid recovery tank 31 and the 4 backward flows of leacheate hold up tank are linked together, circulate the supernatant fluid after the inside sediment of filtration liquid recovery tank 31 once more and use as the leacheate. The sediment outlet of the filter press 32 is communicated with the sediment collecting tank 33 to collect the sludge enriched with heavy metals, the filtrate outlet is communicated with the leachate recycling tank 31 in a backflow manner to perform secondary precipitation separation on the filtrate generated by filter pressing, and the solid-liquid separation effect is improved.
The embodiment is mainly used for treating chromium-contaminated soil, chromium-degrading bacteria liquid is used as leacheate, the leacheate is stored in a re-leacheate storage tank 4, before use, the pH of the leacheate is measured to be about 8, the leacheate flows out at a flow rate of 0.0056m3/s, and the mass ratio of the leacheate to the contaminated soil is 1: 1. Putting chromium-polluted soil into a leaching tank 21, inputting leaching solution in a leaching solution storage tank 4 into a temporary leaching solution storage tank 24 through a pipeline, extracting the leaching solution from the temporary leaching solution storage tank 24 by a spraying system on a leaching travelling crane 25, spraying the soil paved in the tank by moving back and forth on the leaching tank 21, fully leaching the polluted soil by the leaching solution, leaching heavy metal chromium in the soil from the soil to form leachate, allowing the leachate to flow to a leachate collecting tank 22 through a leachate collecting pipe 23, transferring the leachate from the leachate collecting tank 22 to a leachate recovery tank 31 through a pump, allowing the leachate to undergo inclined plate precipitation and chemical precipitation in the leachate recovery tank 31 to generate chromium hydroxide precipitate, connecting an outlet filter press 32 at the bottom in the leachate recovery tank to filter-press dewatering bottom mud at the bottom of the leachate recovery tank, the solid-liquid separation is realized, the sludge enriched with heavy metal chromium after the dehydration enters the sludge collection tank 33, the filter-pressed filtrate is recovered to the leachate recovery tank 31 for secondary precipitation, the supernatant of the leachate recovery tank 31 is communicated to the leacheate storage tank 4, and after the leachate is subjected to the solid-liquid separation by precipitation, the heavy metal content in the supernatant is greatly reduced and can be reused for soil leaching, so that the leachate can be recycled.
The embodiment is applied to the restoration of a certain chromium-polluted site in Xiangxiang city, south of lake, the leaching removal rate of hexavalent chromium in the treated soil is as high as more than 80%, and the residual quantity of metallic chromium in the soil is obviously reduced.
The "communication" above the embodiment may be through a pipeline, or may be through a corresponding material port, or may be without contact in space, and the material is received by dumping, specifically designed according to actual situations such as equipment and installation space, and belongs to common general knowledge in the art. Preferably, all pipelines are high-strength pipes, and control valves are arranged on the pipelines.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an ectopic drip washing system for administering heavy metal contaminated soil which characterized in that: comprises a leaching tank (21), a leaching solution storage tank (4) and a leachate recovery unit;
a movable spraying system is arranged above the leaching tank (21) through a leaching travelling crane (25) to leach heavy metal contaminated soil in the leaching tank (21), and a leachate collecting pipe (23) is laid at the bottom of the leaching tank (21);
the leacheate storage tank (4) is communicated with a spraying system;
the leachate recovery unit comprises a leachate recovery tank (31) and a filter press (32), the leachate recovery tank (31) is communicated with a leachate collecting pipe (23), a sedimentation tank is arranged inside the leachate recovery tank (31), and a bottom sludge outlet at the bottom of the sedimentation tank is connected to the filter press (32) to perform solid-liquid separation on the bottom sludge.
2. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 1, wherein: the bottom of the leaching tank (21) is provided with a leachate collecting tank (22) communicated with a leachate collecting pipe (23), and the leachate recycling tank (31) is communicated with the leachate collecting pipe (23) through the leachate collecting tank (22).
3. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 1, wherein: the leaching tank (21) is provided with a temporary leacheate storage tank (24) communicated with the spraying system, and the storage tank (4) of the leacheate is communicated with the spraying system through the temporary leacheate storage tank (24).
4. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 3, wherein: the spraying system comprises a spraying pump (253), a spraying pipe (254) and spraying nozzles (255), wherein the spraying pump (253) is fixed on the washing travelling crane (25) and moves together with the travelling crane, the spraying nozzles (255) are arranged on the washing travelling crane (25) along the span direction of the washing travelling crane, and the spraying pipe (254) communicates the spraying pump (253), the spraying nozzles (255) and the temporary storage tank (24) of the washing liquid to form the spraying system.
5. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 4, wherein: the temporary storage tank (24) of the leacheate is arranged on one side of the leaching tank (21) along the traveling direction of the leaching travelling crane, and a spraying pipe (254) connected with an inlet of the spraying pump (253) is suspended and extends to the position below the liquid level of the temporary storage tank (24) of the leacheate.
6. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 4, wherein: and a flow control valve is arranged on the spray pipe (254).
7. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 1, wherein: and a clear liquid outlet at the top of the sedimentation tank of the percolate recovery tank (31) is communicated with the leacheate storage tank (4) in a backflow mode.
8. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 1, wherein: the bottom mud outlet of the filter press (32) is communicated with the bottom mud collecting tank (33), and the filtrate outlet is communicated with the percolate recovery tank (31) in a backflow mode.
9. The ex-situ leaching system for remediating heavy metal contaminated soil as claimed in claim 1, wherein: also comprises a soil crushing primary screening device (11) for feeding the interior of the washing tank (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688362.5U CN212216589U (en) | 2020-04-29 | 2020-04-29 | Ectopic leaching system for treating heavy metal contaminated soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688362.5U CN212216589U (en) | 2020-04-29 | 2020-04-29 | Ectopic leaching system for treating heavy metal contaminated soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116893A (en) * | 2022-12-09 | 2023-05-16 | 杰瑞环保科技有限公司 | Soil remediation method, device, electronic equipment and computer readable storage medium |
| CN118305176A (en) * | 2024-04-22 | 2024-07-09 | 陕西科技大学 | In-situ mineralization extraction system and method for heavy metals in soil |
-
2020
- 2020-04-29 CN CN202020688362.5U patent/CN212216589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116893A (en) * | 2022-12-09 | 2023-05-16 | 杰瑞环保科技有限公司 | Soil remediation method, device, electronic equipment and computer readable storage medium |
| CN118305176A (en) * | 2024-04-22 | 2024-07-09 | 陕西科技大学 | In-situ mineralization extraction system and method for heavy metals in soil |
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