CN214263222U - Heavy metal contaminated soil top layer repair structure - Google Patents
Heavy metal contaminated soil top layer repair structure Download PDFInfo
- Publication number
- CN214263222U CN214263222U CN202120038903.4U CN202120038903U CN214263222U CN 214263222 U CN214263222 U CN 214263222U CN 202120038903 U CN202120038903 U CN 202120038903U CN 214263222 U CN214263222 U CN 214263222U
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- China
- Prior art keywords
- layer
- soil
- contaminated soil
- nutrient solution
- heavy metal
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- 239000002689 soil Substances 0.000 title claims abstract description 83
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 31
- 230000008439 repair process Effects 0.000 title claims abstract description 10
- 235000015097 nutrients Nutrition 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims abstract description 15
- 241001233242 Lontra Species 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 48
- 235000016709 nutrition Nutrition 0.000 claims description 16
- 230000035764 nutrition Effects 0.000 claims description 16
- 239000002344 surface layer Substances 0.000 claims description 11
- 239000004746 geotextile Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 230000001580 bacterial effect Effects 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract description 4
- 238000001764 infiltration Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a repair structure on heavy metal contaminated soil top layer, including polluting the soil body, the cistern, the drainage gauze pad, the overburden, the frame plate, geotechnological cloth layer and muck layer, through set up supplementary liquid feeding device at contaminated soil body top, add into the nutrient solution through the filling opening in the nutrient solution advances the nutrient solution, in the hole entering soil on the nutrient solution passes through the nutrient solution, bacterial colony and the microorganism in the messenger's nutrient solution repaired soil, prevent that the nutrient solution from leading to soil inside to be difficult to restore in being difficult to the infiltration soil, this device convenient to use easy operation, the effectual effect that improves environmental protection, through having set up filter cloth in anti-overflow side wall bottom, make the nutrient solution ooze from the next door through the prevention of seepage membrane, filter soil through the active carbon otter board, make better permeating soil of nutrient solution through the hole of permeating water.
Description
Technical Field
The utility model particularly relates to a heavy metal contaminated soil top layer's restoration structure relates to the relevant field of restoration on heavy metal contaminated soil top layer.
Background
The heavy metal pollution of the soil refers to the condition that the content of trace metal elements in the soil exceeds a background value and is too high due to excessive deposition because of human activities, and the heavy metal pollution is mainly caused by human factors such as mining, waste gas emission, sewage irrigation, heavy metal product use and the like, and a repairing structure of the surface layer of the heavy metal polluted soil is needed in the process of repairing the heavy metal polluted soil.
But the restoration structure on heavy metal contaminated soil top layer generally all adds nutrient solution and pollutes in the soil, makes bacterial colony and microorganism in the nutrient solution restore contaminated soil, but the restoration structure on traditional heavy metal contaminated soil top layer is relatively poor to nutrient solution infiltration effect, leads to the soil degree of depth to restore, influences environmental protection efficiency, and the restoration structure on traditional heavy metal contaminated soil top layer is relatively poor to soil filter effect simultaneously, leads to using inconveniently.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above insufficiency, the utility model provides a heavy metal contaminated soil top layer's restoration structure here.
The utility model discloses a realize like this, construct the restoration structure on heavy metal contaminated soil top layer, the device is including polluting the soil body, it is provided with the cistern to pollute soil body bottom, it is provided with supplementary liquid feeding device to pollute soil body top, supplementary liquid feeding device includes barrier, filling opening, nutrition pipe, anti-overflow side wall, filter cloth, simple canal and through-hole, barrier top equidistance embedding has the filling opening, nutrition pipe and barrier bottom fixed connection to nutrition pipe is the link up structure with the filling opening, anti-overflow side wall and nutrition pipe bottom fixed connection, anti-overflow side wall bottom is provided with the filter cloth, simple canal and filter cloth bottom zonulae occludens, through-hole equidistance embedding middle part in simple canal, barrier and contaminated soil body top fixed connection.
Preferably, a drainage mesh pad is arranged at the bottom of the liquid storage tank, a covering layer is arranged at the bottom of the drainage mesh pad, a frame plate is arranged at the bottom of the covering layer, a geotextile layer is arranged at the bottom of the frame plate, and a clay layer is arranged at the bottom of the geotextile layer.
Preferably, the filter cloth includes prevention of seepage membrane, active carbon otter board and the hole of permeating water, prevention of seepage membrane bottom is provided with the active carbon otter board, the hole of permeating water and active carbon otter board bottom fixed connection, prevention of seepage membrane and anti-overflow side wall bottom fixed connection, prevention of seepage membrane and simple lattice canal top zonulae occludens.
Preferably, the filling opening has a circular shape, and fifty-five filling openings are provided in total.
Preferably, the outer surface of the feeding tube is equidistantly provided with through holes, and the diameter of the through holes on the feeding tube is 2 cm.
Preferably, the thickness of the simple channel is set to be 0.5 cm, and a stabilizing layer is arranged between the overflow prevention edge and the simple channel.
Preferably, the activated carbon mesh plate is in a fine net shape, and the holes on the activated carbon mesh plate are 0.7 cm.
Preferably, the water permeable holes are rectangular, and the length of the water permeable holes is set to be 8 cm.
Preferably, the nutrition tube is made of aluminum alloy.
Preferably, the frame plate is made of stainless steel.
The utility model has the advantages of as follows: the utility model discloses an improve and provide a heavy metal contaminated soil top layer's restoration structure here, compare with equipment of the same type, have following improvement:
the method has the advantages that: a repair structure on heavy metal contaminated soil top layer through having set up supplementary liquid feeding device at contaminated soil body top, adds into the nutrient solution through the filling opening and manages, in the hole entering soil on the nutrient solution passes through the nutrient solution pipe, makes bacterial colony and microorganism in the nutrient solution restore soil, prevents that the nutrient solution from leading to soil inside to be difficult to restore in being difficult to the infiltration soil, this device convenient to use easy operation, the effectual effect that improves environmental protection.
The method has the advantages that: a restoration structure on heavy metal contaminated soil top layer through having set up the filter cloth in anti-overflow side wall bottom, makes the nutrient solution ooze from the next door through preventing osmosis membrane, filters soil through the active carbon otter board, makes better permeating soil of nutrient solution through the hole of permeating water.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic structural view of the auxiliary liquid adding device of the present invention;
FIG. 4 is a schematic structural view of the auxiliary liquid adding device of the present invention in a front sectional view;
fig. 5 is the schematic view of the explosion structure of the auxiliary liquid adding device of the present invention.
Wherein: the soil block-1 polluted, the liquid storage pool-2, the drainage net pad-3, the covering layer-4, the frame plate-5, the geotechnical cloth layer-6, the clay layer-7, the auxiliary liquid adding device-8, the impermeable layer-81, the liquid adding port-82, the nutrient canal-83, the anti-overflow side wall-84, the filter cloth-85, the simple lattice canal-86, the through hole-87, the impermeable membrane-851, the activated carbon net plate-852 and the permeable hole-853.
Detailed Description
The present invention will be described in detail with reference to the accompanying fig. 1-5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1 and 2, the utility model provides a heavy metal contaminated soil top layer's restoration structure is provided herein through the improvement, including polluting soil body 1, pollute 1 bottom of soil body and be provided with reservoir 2, pollute 1 top of soil body and be provided with supplementary liquid feeding device 8, reservoir 2 bottom is provided with drainage gauze pad 3, drainage gauze pad 3 bottom is provided with overburden 4, overburden 4 bottom is provided with frame plate 5, frame plate 5 is stainless steel, has longer life's advantage, frame plate 5 bottom is provided with geotechnological cloth layer 6, geotechnological cloth layer 6 bottom is provided with clay layer 7.
Referring to fig. 3 and 4, the present invention provides a heavy metal contaminated soil surface layer repairing structure through improvement, the auxiliary liquid adding device 8 includes an impermeable layer 81, a liquid adding port 82, a nutrition tube 83, an anti-overflow side wall 84, a filter cloth 85, a simple canal 86 and a through hole 87, the liquid adding port 82 is embedded in the top of the impermeable layer 81 at an equal distance, the liquid adding port 82 is circular, fifty five liquid adding ports 82 are provided at the liquid adding port 82 in total, so as to achieve a better liquid adding effect, the nutrition tube 83 is fixedly connected with the bottom of the impermeable layer 81, the nutrition tube 83 is in a through structure with the liquid adding port 82, the nutrition tube 83 is made of aluminum alloy, and has the advantage of stronger corrosion resistance, the through holes are provided at the outer surface of the nutrition tube 83 at an equal distance, the diameter of the through holes on the nutrition tube 83 is set to be 2 cm, so as to achieve a better soil repairing effect, the anti-overflow side wall 84 is fixedly connected with the bottom of the nutrition tube 83, the anti-overflow side wall 84 bottom is provided with filter cloth 85, simple canal 86 and filter cloth 85 bottom zonulae occludens, and simple canal 86 thickness sets up to 0.5 centimetre to be provided with the stable layer between anti-overflow side wall 84 and the simple canal 86 the two, so that reach the better effect of restoreing soil, through-hole 87 equidistance imbeds middle part in simple canal 86, barrier 81 and the top fixed connection of contaminated soil body 1.
Please refer to fig. 5, the utility model provides a repair structure on heavy metal contaminated soil top layer here through the improvement, filter cloth 85 includes prevention of seepage membrane 851, activated carbon otter board 852 and the hole 853 of permeating water, prevention of seepage membrane 851 bottom is provided with activated carbon otter board 852, activated carbon otter board 852 is fine and close netted, and the hole on the activated carbon otter board 852 is 0.7 centimetre, so as to reach better filterable effect, hole 853 and activated carbon otter board 852 bottom fixed connection of permeating water, it is the cuboid form to permeate water hole 853, and the hole 853 length of permeating water sets up to 8 centimetres, so as to reach better filterable effect, prevention of seepage membrane 851 and anti-overflow wall 84 bottom fixed connection, prevention of seepage membrane 851 and simple channel 86 top zonulae occludens.
The utility model provides a heavy metal contaminated soil surface layer repairing structure through improvement, which operates as follows;
firstly, moving the device to a place needing to be used, then adding a geotextile layer 6 to the bottom of the polluted land 1, and covering a clay layer 7 on the geotextile layer 6;
secondly, placing the frame plate 5 on the geotextile layer 6, covering the covering layer 4 on the frame plate 5, bonding the drainage net pad 3 on the covering layer 4 through an adhesive, placing the liquid storage tank 2 on the drainage net pad 3, installing the impermeable layer 81 on the top of the polluted soil body 1, and inserting the nutrient tube 83 into the polluted soil body 1;
thirdly, nutrient solution is added into the nutrient tube 83 through the liquid adding port 82 and enters the soil through the holes on the nutrient tube 83, so that the bacterial colonies and microorganisms in the nutrient solution repair the soil, and the problem that the nutrient solution is difficult to permeate into the soil to cause the internal part of the soil to be difficult to repair is prevented;
fourthly, the filter cloth 85 is arranged at the bottom of the anti-overflow side wall 84, nutrient solution seeps out of the side through the anti-seepage film 851, the soil is filtered through the activated carbon net plate 852, and the nutrient solution can better seep through the soil through the permeable holes 853;
fifthly, after the device is used, the impermeable layer 81 is detached from the polluted soil 1, the nutrient tube 83 is pulled out from the polluted soil 1, the liquid storage pool 2, the drainage net pad 3, the covering layer 4, the frame plate 5, the geotextile layer 6 and the clay layer 7 are taken out from the repaired soil in sequence, and the secondary pollution to the soil caused by random discarding is prevented, so that the annular protection effect is influenced.
The utility model discloses an improvement provides a repair structure on heavy metal contaminated soil top layer, through set up supplementary liquid feeding device 8 at 1 top of the contaminated soil body, add into the nutrient solution through filling opening 82 in the nutrient solution advances the nutrient solution pipe 83, the nutrient solution passes through in the hole entering soil on the nutrient solution pipe 83, bacterial colony and microorganism in the messenger's nutrient solution are restoreed soil, it leads to soil inside to be difficult to restore in the soil to prevent that the nutrient solution from being difficult to the infiltration, this device convenient to use easy operation, the effectual effect that has improved environmental protection, through having set up filter cloth 85 in anti-overflow side wall 84 bottom, it oozes from the next door to make the nutrient solution ooze through prevention of seepage membrane 851, filter soil through active carbon otter board 852, make the better soil of nutrient solution permeate through hole 853 that permeates.
Claims (8)
1. The heavy metal contaminated soil surface layer repairing structure comprises a contaminated soil body (1), wherein a liquid storage pool (2) is arranged at the bottom of the contaminated soil body (1);
the method is characterized in that: also comprises an auxiliary liquid adding device (8), the top of the polluted soil body (1) is provided with the auxiliary liquid adding device (8), the auxiliary liquid adding device (8) comprises an impermeable layer (81), a liquid adding port (82), a nutrient tube (83), an anti-overflow side wall (84), filter cloth (85), a simple channel (86) and a through hole (87), liquid filling ports (82) are embedded in the top of the impermeable layer (81) at equal intervals, the nutrient tubes (83) are fixedly connected with the bottom of the impermeable layer (81), the nutrition tube (83) and the liquid filling port (82) are in a through structure, the anti-overflow side wall (84) is fixedly connected with the bottom of the nutrition tube (83), the bottom of the anti-overflow side wall (84) is provided with a filter cloth (85), the simple channel (86) is tightly connected with the bottom of the filter cloth (85), the through holes (87) are embedded in the middle of the inner portion of the simple lattice channel (86) at equal intervals, and the impermeable layer (81) is fixedly connected with the top of the polluted soil body (1).
2. The repairing structure of the surface layer of heavy metal contaminated soil according to claim 1, wherein: the liquid storage tank is characterized in that a drainage mesh pad (3) is arranged at the bottom of the liquid storage tank (2), a covering layer (4) is arranged at the bottom of the drainage mesh pad (3), a frame plate (5) is arranged at the bottom of the covering layer (4), a geotextile layer (6) is arranged at the bottom of the frame plate (5), and a clay layer (7) is arranged at the bottom of the geotextile layer (6).
3. The repairing structure of the surface layer of heavy metal contaminated soil according to claim 1, wherein: filter cloth (85) including prevention of seepage membrane (851), activated carbon otter board (852) and hole (853) of permeating water, prevention of seepage membrane (851) bottom is provided with activated carbon otter board (852), hole (853) of permeating water and activated carbon otter board (852) bottom fixed connection, prevention of seepage membrane (851) and anti-overflow lateral wall (84) bottom fixed connection, prevention of seepage membrane (851) and simple ditch (86) top zonulae occludens.
4. The repairing structure of the surface layer of heavy metal contaminated soil according to claim 1, wherein: the filling opening (82) is circular, and fifty-five filling openings (82) are arranged.
5. The repairing structure of the surface layer of heavy metal contaminated soil according to claim 1, wherein: the outer surface of the nutrition tube (83) is equidistantly provided with through holes, and the diameter of each through hole in the nutrition tube (83) is 2 cm.
6. The repairing structure of the surface layer of heavy metal contaminated soil according to claim 1, wherein: the thickness of the simple channel (86) is set to be 0.5 cm, and a stabilizing layer is arranged between the anti-overflow side wall (84) and the simple channel (86).
7. The repair structure for the surface layer of heavy metal contaminated soil according to claim 3, wherein: the activated carbon screen plate (852) is in a fine mesh shape, and the holes on the activated carbon screen plate (852) are 0.7 cm.
8. The repair structure for the surface layer of heavy metal contaminated soil according to claim 3, wherein: the water permeable holes (853) are cuboid, and the length of the water permeable holes (853) is set to be 8 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038903.4U CN214263222U (en) | 2021-01-07 | 2021-01-07 | Heavy metal contaminated soil top layer repair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038903.4U CN214263222U (en) | 2021-01-07 | 2021-01-07 | Heavy metal contaminated soil top layer repair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214263222U true CN214263222U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120038903.4U Expired - Fee Related CN214263222U (en) | 2021-01-07 | 2021-01-07 | Heavy metal contaminated soil top layer repair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214263222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115007633A (en) * | 2022-06-14 | 2022-09-06 | 贵州大学 | In-situ repair method for lead-zinc waste residue storage yard |
-
2021
- 2021-01-07 CN CN202120038903.4U patent/CN214263222U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115007633A (en) * | 2022-06-14 | 2022-09-06 | 贵州大学 | In-situ repair method for lead-zinc waste residue storage yard |
| CN115007633B (en) * | 2022-06-14 | 2023-03-14 | 贵州大学 | In-situ repair method for lead-zinc waste residue storage yard |
| US11858018B1 (en) | 2022-06-14 | 2024-01-02 | Guizhou University | In-situ remediation method for lead-zinc slag dump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210924 |