CN214894686U - Migration and diffusion simulation device for micro-plastic in soil - Google Patents
Migration and diffusion simulation device for micro-plastic in soil Download PDFInfo
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- CN214894686U CN214894686U CN202023132796.6U CN202023132796U CN214894686U CN 214894686 U CN214894686 U CN 214894686U CN 202023132796 U CN202023132796 U CN 202023132796U CN 214894686 U CN214894686 U CN 214894686U
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Abstract
The utility model discloses a little plastics migration diffusion analogue means in soil. The simulation apparatus includes: the spraying frame, a soil filling layer, a liquid collection transition layer, a leachate collection layer and a residual liquid collector are arranged in the spraying frame; the soil filling layer, the liquid collection transition layer and the leachate collection layer are sequentially arranged from top to bottom; the soil filling layer is a rectangular frame which is obliquely arranged; the liquid collecting transition layer comprises a plurality of liquid collectors; the leachate collection layer is provided with a plurality of first liquid storage containers which are in one-to-one correspondence with the liquid collectors; the soil filling layer is communicated with the residual liquid collectors through holes, and one through hole corresponds to one residual liquid collector. The simulation device obtains the soil leaching solution by changing the inclination angle of the soil filling layer and the type of the soil doped with the micro-plastics and spraying water, and researches the content of the micro-plastics in the soil leaching solution, thereby simulating the migration condition of the micro-plastics in the soil under various natural conditions and having guiding significance for the actual micro-plastics treatment.
Description
Technical Field
The utility model relates to a little plastics migration diffusion research technical field of soil especially relates to a little plastics migration diffusion analogue means in soil.
Background
The micro-plastics generally refer to plastic particles with the particle size of less than 5 millimeters, and due to long-term use of agricultural mulching films, application of organic fertilizers and sludge, irrigation of sewage and the like, soil always faces serious threat of micro-plastic pollution. The externally input micro plastic can be transferred to the inside of the soil from the surface layer of the soil under various actions such as rain wash, biological action and the like, and after the micro plastic is accumulated to a certain degree, the mechanical property and the physicochemical property of the soil are changed, the balance of a soil ecosystem is threatened, and huge hidden dangers are brought to the production of crops and the safety of agricultural products. Nevertheless, studies on the distribution, migration, fate and ecological impact of micro-plastics in soil have been very lacking so far.
The occurrence state and the migration and transportation characteristics of the micro-plastic in a soil multi-medium system are decisive factors influencing the final return of the micro-plastic in the environment and are also important conditions influencing the damage degree of the micro-plastic to the soil environment and the soil ecology. At present, the related research aiming at the migration and the transportation of the micro-plastic in the soil is few, and the experimental device suitable for researching the migration behavior of the soil micro-plastic on the market is rare, and a general experimental device is not used for the research in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a little plastics migration diffusion analogue means in soil, through the migration condition of little plastics in soil under the various natural condition of simulation, but the migration process of real-time supervision little plastics provides experimental data support for subsequent relevant research.
In order to achieve the above object, the utility model provides a following scheme:
a simulation device for migration and diffusion of micro-plastics in soil comprises: the device comprises a spray rack, a soil filling layer, a liquid collection transition layer, a leachate collection layer and a residual liquid collector, wherein the soil filling layer, the liquid collection transition layer, the leachate collection layer and the residual liquid collector are arranged in the spray rack; the soil filling layer, the liquid collecting transition layer and the leachate collecting layer are sequentially arranged from top to bottom;
the soil filling layer is a rectangular frame which is obliquely arranged, and a first filter screen is arranged at the bottom of the soil filling layer; the soil filling layer is used for placing soil doped with micro plastics; the spraying frame is used for spraying water to the soil filling layer;
the liquid collection transition layer comprises a plurality of liquid collectors, and the plurality of liquid collectors are distributed in the area below the bottom surface of the soil filling layer; the liquid collector is used for collecting first soil leachate leached from a corresponding soil filling layer area right above and enabling the first soil leachate to flow into the leachate collecting layer;
the leachate collecting layer is provided with a plurality of first liquid storage containers which are in one-to-one correspondence with the liquid collectors, and the first liquid storage containers are used for storing the first soil leachate flowing out of the corresponding liquid collectors right above;
a plurality of through holes are formed in the first side surface of the soil filling layer; a second filter screen is arranged in each through hole, the soil filling layer is communicated with the residual liquid collector through the through holes, and one through hole corresponds to one residual liquid collector; the residual liquid collector is used for collecting second soil leaching liquid in the soil filling layer; the first side face is a side face with a lower height in two side faces perpendicular to the inclined direction.
Optionally, the spray rack comprises a bracket, a water inlet pipe and a spray head, the spray head is communicated with the water inlet pipe, and the water inlet pipe is hung on the bracket; the spray head is used for spraying water to the soil filling layer.
Optionally, the water inlet pipe is provided with a plurality of nozzles.
Optionally, a square liquid collecting port of the liquid collector is tightly attached to the first filter screen, and the liquid collector introduces the first soil leaching liquid into the first liquid storage container through a hose.
Optionally, the leachate collection layer further comprises a drawer-type tray; a plurality of inner grooves are formed in the drawer type tray; the inner groove is used for placing the first liquid storage container.
Optionally, four corners of the leachate collection layer are respectively provided with a clamping groove, and each clamping groove is provided with a pillar; two of one side the pillar is adjustable pillar, two of opposite side the pillar is fixed support, the pillar is used for supporting soil filling layer and adjustment soil filling layer's inclination.
Optionally, the height adjustment range of the adjustable support is as follows: 30-45cm, and the height of the fixing support is 30 cm.
Optionally, the raffinate collector comprises a draft tube and a second liquid storage container; the inner diameter of the drainage tube is matched with the diameter of the through hole; the soil filling layer is communicated with the second liquid storage container through the through hole and the drainage tube in sequence.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model discloses a little plastics migration diffusion analogue means in soil, include: the spraying frame, a soil filling layer, a liquid collection transition layer, a leachate collection layer and a residual liquid collector are arranged in the spraying frame; the soil filling layer, the liquid collection transition layer and the leachate collection layer are sequentially arranged from top to bottom; the soil filling layer is a rectangular frame which is obliquely arranged, and a first filter screen is arranged at the bottom of the soil filling layer; the liquid collection transition layer comprises a plurality of liquid collectors, and the bottom surfaces of the soil filling layers are fully distributed with the liquid collectors; the leachate collection layer is provided with a plurality of first liquid storage containers which are in one-to-one correspondence with the liquid collectors; a plurality of through holes are formed in the first side surface of the soil filling layer; and a second filter screen is arranged in each through hole, the soil filling layer is communicated with the residual liquid collectors through the through holes, and one through hole corresponds to one residual liquid collector. The simulation device obtains the soil leaching solution by changing the inclination angle of the soil filling layer and the soil doped with the micro-plastics and spraying water, and researches the content of the micro-plastics in the soil leaching solution, thereby simulating the migration condition of the micro-plastics in the soil under various natural conditions and having guiding significance for the actual micro-plastics treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a structural diagram of a simulation device for migration and diffusion of micro plastic in soil according to an embodiment of the present invention;
fig. 2 is a schematic view of a soil filling layer provided by an embodiment of the present invention;
fig. 3 is a structural view of a spray frame provided by the embodiment of the present invention;
FIG. 4 is a schematic view of a liquid-collecting transition layer provided in an embodiment of the present invention;
fig. 5 is a top view of a leachate collection layer according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a residual liquid collector according to an embodiment of the present invention.
Description of the symbols: 1-spray rack, 2-soil filling layer, 3-liquid collecting transition layer, 4-leachate collecting layer, 5-residual liquid collector, 6-first filter screen, 7-liquid collector, 8-first liquid storage container, 9-through hole, 10-second filter screen, 11-bracket, 12-water inlet, 13-spray head, 14-upper rack leg, 15-lower rack leg, 16-inner groove, 17-adjustable support column, 18-fixed support column, 19-drainage tube and 20-second liquid storage container.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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.
The utility model aims at providing a little plastics migration diffusion analogue means in soil aims at the migration condition of little plastics in soil through simulating under the various natural condition, and the migration process of little plastics of real-time supervision provides experimental data support for subsequent relevant research, can be applied to the little plastics migration diffusion research technical field of soil. The utility model discloses a little plastics migration diffusion analogue means in soil through the migration condition of little plastics in soil under the various natural condition of simulation, monitors the migration process of little plastics in real time, provides experimental data support for subsequent relevant research.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a structural diagram of a simulation device for migration and diffusion of micro plastic in soil according to an embodiment of the present invention. As shown in fig. 1, the simulation apparatus for migration and diffusion of micro plastic in soil in the present embodiment includes: the device comprises a spray rack 1, and a soil filling layer 2, a liquid collection transition layer 3, a leachate collection layer 4 and a residual liquid collector 5 which are arranged in the spray rack 1; the soil filling layer 2, the liquid collecting transition layer 3 and the leachate collecting layer 4 are sequentially arranged from top to bottom.
The soil filling layer 2 is a rectangular frame which is obliquely arranged, and a first filter screen 6 is arranged at the bottom of the soil filling layer 2; as shown in fig. 2, the soil filling layer 2 is used for placing soil doped with micro plastics; the soil mixed with the micro-plastics is arranged according to actual needs, and the spray rack 1 is used for spraying water to the soil filling layer 2. The length, width and aperture of the first filter screen 6 are set according to actual needs, specifically, the length of the first filter screen 6 is 50cm, the width is 50cm, and the aperture is 0.1 cm.
The liquid collecting transition layer 3 comprises a plurality of liquid collectors 7, and the plurality of liquid collectors 7 are fully distributed in the area below the bottom surface of the soil filling layer 2; the liquid collector 7 is used for collecting the first soil leachate leached from the corresponding region of the soil filling layer 2 right above, and making the first soil leachate flow into the leachate collecting layer 4. The liquid collecting openings of the liquid collectors 7 are 10 cm-10 cm rectangles, the number of the liquid collectors 7 is set according to actual needs, and the specific number of the liquid collectors 7 is 25 and 5 rows are formed.
The leachate collection layer 4 is provided with a plurality of first liquid storage containers 8 which are in one-to-one correspondence with the liquid collectors 7, and the first liquid storage containers 8 are used for storing first soil leachate which flows out of the corresponding liquid collectors 7 right above.
A plurality of through holes 9 are formed in the first side surface of the soil filling layer 2; a second filter screen 10 is arranged in each through hole 9, the soil filling layer 2 is communicated with the residual liquid collector 5 through the through holes 9, and one through hole 9 corresponds to one residual liquid collector 5; the residual liquid collector 5 is used for collecting the second soil leaching liquid in the soil filling layer 2; the first side face is the side face with lower height in the two side faces perpendicular to the inclined direction. The number of the residual liquid collectors 5 is set according to actual needs.
As an alternative embodiment, as shown in fig. 3, the spray rack 1 includes a support 11, a water inlet pipe 12 and a spray head 13, the spray head 13 is communicated with the water inlet pipe 12, and the water inlet pipe 12 is hung on the support 11; the spray head 13 is used for spraying water to the soil filling layer 2. Specifically, support 11 is movable support, and movable support includes: four wheels, four frame legs, upper frame and a plurality of bracing pieces, every frame leg is equallyd divide into upper frame leg 14 and lower frame leg 15, upper frame leg 14 and lower frame leg 15 sliding connection, the both ends and the last frame sliding connection of bracing piece.
As an alternative embodiment, a plurality of nozzles 13 are disposed on the water inlet pipe 12, a plurality of water inlet pipes 12 are disposed on the movable support, the number of the water inlet pipes 12 and the nozzles 13 and the spraying angle of the nozzles 13 are specifically set according to actual requirements, specifically, the length of the water inlet pipe 12 is 50cm, one nozzle 13 is connected and mounted on the water inlet pipe 12 through a screw port every 10cm, and the nozzles 13 are mounted obliquely downward at an angle of 30 degrees.
As an alternative embodiment, a square liquid collecting port of the liquid collector 7 is closely attached to the first filter 6, and the liquid collector 7 introduces the first soil leachate into the first liquid storage container 8 through a hose.
As an alternative embodiment, the leachate collection layer 4 may also comprise drawer trays; a plurality of inner grooves 16 are arranged in the drawer type tray; the inner tank 16 is used for placing the first liquid storage container 8. Specifically, the drawer-type tray is made of transparent glass, the number of the inner grooves 16 is 25, the depth is 15cm, the number of the first liquid storage containers 8 is 25, and the first liquid storage containers are arranged in 5 rows and 5 columns.
As an optional implementation manner, four corners of the leaching solution collecting layer 4 are respectively provided with a clamping groove, and each clamping groove is provided with a pillar; the two pillars on one side are adjustable pillars 17, and the two pillars on the other side are fixed pillars 18, and the pillars are used for supporting the soil filling layer 2 and adjusting the inclination angle of the soil filling layer 2.
As an alternative embodiment, the height adjustment range of the adjustable strut 17 is: 30-45cm and the height of the fixed post 18 is 30 cm. The height of the adjustable support column 17 is adjusted according to actual needs to change the inclination angle of the soil filling layer 2.
As an alternative embodiment, the raffinate collector 5 comprises a drain 19 and a second liquid holding vessel 20; the inner diameter of the drainage tube 19 is matched with the diameter of the through hole 9; the soil filling layer 2 is communicated with a second liquid storage container 20 through the through hole 9 and the drainage tube 19 in sequence, and specifically, the inner diameter of the drainage tube 19 is 4 cm.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the device and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A simulation device for migration and diffusion of micro plastic in soil is characterized by comprising: the device comprises a spray rack, a soil filling layer, a liquid collection transition layer, a leachate collection layer and a residual liquid collector, wherein the soil filling layer, the liquid collection transition layer, the leachate collection layer and the residual liquid collector are arranged in the spray rack; the soil filling layer, the liquid collecting transition layer and the leachate collecting layer are sequentially arranged from top to bottom;
the soil filling layer is a rectangular frame which is obliquely arranged, and a first filter screen is arranged at the bottom of the soil filling layer; the soil filling layer is used for placing soil doped with micro plastics; the spraying frame is used for spraying water to the soil filling layer;
the liquid collection transition layer comprises a plurality of liquid collectors, and the plurality of liquid collectors are distributed in the area below the bottom surface of the soil filling layer; the liquid collector is used for collecting first soil leachate leached from a corresponding soil filling layer area right above and enabling the first soil leachate to flow into the leachate collecting layer;
the leachate collecting layer is provided with a plurality of first liquid storage containers which are in one-to-one correspondence with the liquid collectors, and the first liquid storage containers are used for storing the first soil leachate flowing out of the corresponding liquid collectors right above;
a plurality of through holes are formed in the first side surface of the soil filling layer; a second filter screen is arranged in each through hole, the soil filling layer is communicated with the residual liquid collector through the through holes, and one through hole corresponds to one residual liquid collector; the residual liquid collector is used for collecting second soil leaching liquid in the soil filling layer; the first side face is a side face with a lower height in two side faces perpendicular to the inclined direction.
2. The simulation device for migration and diffusion of micro plastic in soil according to claim 1, wherein the spray rack comprises a support, a water inlet pipe and a spray head, the spray head is communicated with the water inlet pipe, and the water inlet pipe is hung on the support; the spray head is used for spraying water to the soil filling layer.
3. The simulation apparatus for migration and diffusion of micro plastic in soil according to claim 2, wherein a plurality of said nozzles are disposed on said water inlet pipe.
4. The simulation apparatus for migration and diffusion of micro-plastic in soil according to claim 1, wherein the square liquid collecting port of the liquid collector is closely attached to the first filter screen, and the liquid collector introduces the first soil leachate into the first liquid storage container through a hose.
5. The simulation apparatus for migration and diffusion of micro-plastic in soil according to claim 1, wherein the leachate collection layer further comprises drawer trays; a plurality of inner grooves are formed in the drawer type tray; the inner groove is used for placing the first liquid storage container.
6. The simulation device for migration and diffusion of micro-plastic in soil according to claim 1, wherein four corners of the leachate collection layer are respectively provided with a clamping groove, and each clamping groove is provided with a support; two of one side the pillar is adjustable pillar, two of opposite side the pillar is fixed support, the pillar is used for supporting soil filling layer and adjustment soil filling layer's inclination.
7. The simulation apparatus for migration and diffusion of micro plastic in soil according to claim 6, wherein the height adjustment range of the adjustable support is: 30-45cm, and the height of the fixing support is 30 cm.
8. The simulation device for migration and diffusion of micro-plastics in soil according to claim 1, wherein the residual liquid collector comprises a drainage tube and a second liquid storage container; the inner diameter of the drainage tube is matched with the diameter of the through hole; the soil filling layer is communicated with the second liquid storage container through the through hole and the drainage tube in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023132796.6U CN214894686U (en) | 2020-12-23 | 2020-12-23 | Migration and diffusion simulation device for micro-plastic in soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023132796.6U CN214894686U (en) | 2020-12-23 | 2020-12-23 | Migration and diffusion simulation device for micro-plastic in soil |
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| CN214894686U true CN214894686U (en) | 2021-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755393A (en) * | 2022-04-29 | 2022-07-15 | 内蒙古师范大学 | Simulation device for migration and diffusion of micro plastic in soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755393A (en) * | 2022-04-29 | 2022-07-15 | 内蒙古师范大学 | Simulation device for migration and diffusion of micro plastic in soil |
| CN114755393B (en) * | 2022-04-29 | 2023-08-04 | 内蒙古师范大学 | Micro-plastic migration and diffusion simulation device in soil |
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