CN219567711U - Vertical current artificial wetland simulation device - Google Patents

Vertical current artificial wetland simulation device Download PDF

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Publication number
CN219567711U
CN219567711U CN202320013295.0U CN202320013295U CN219567711U CN 219567711 U CN219567711 U CN 219567711U CN 202320013295 U CN202320013295 U CN 202320013295U CN 219567711 U CN219567711 U CN 219567711U
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China
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barrel body
pipe
artificial wetland
simulation device
shaped pipe
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CN202320013295.0U
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Chinese (zh)
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万杰
汪晓晓
杨云迪
吴桂雄
肖舒文
唐志强
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Sichuan Agricultural University
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Sichuan Agricultural University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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Abstract

The utility model discloses a vertical flow artificial wetland simulation device, which comprises: a barrel body which is used as an artificial wetland simulation carrier, wherein a matrix filler with a microbial film is arranged in the barrel body, a reserved space is arranged above the matrix filler for placing plants; the water inlet pipe is communicated with the upper part of the barrel body, and a water inlet valve is arranged on the water inlet pipe; the water outlet pipe is arranged at the bottom of the barrel body and is provided with a water outlet valve; the short end of the J-shaped pipe is detachably connected with the water outlet pipe, and a screen is arranged at the short end port of the J-shaped pipe; the long part end of the J-shaped pipe extends to the direction of the top end of the barrel body, and the long part pipe body of the J-shaped pipe is mutually parallel to the barrel body. The utility model can realize effective collection of the micro plastic solid particles in the artificial wetland simulation process, ensure the uniform water inlet and outlet flow rate and improve the test effect.

Description

Vertical current artificial wetland simulation device
Technical Field
The utility model belongs to the technical field of artificial wetland, and particularly relates to a vertical flow artificial wetland simulation device.
Background
The artificial wetland is a technology for treating sewage and sludge by utilizing the physical, chemical and biological triple synergistic effects of soil, artificial medium, plants and microorganisms in the process of flowing sewage and sludge along a certain direction by manually constructing and controlling the ground similar to the swamp, and controlling the sewage and sludge to be dosed on the constructed wetland. The artificial wetland simulation device is required to be used for acquiring test data in the test process.
Most of the current simulation devices introduce the effluent into a vessel through a funnel and then test the effluent in the vessel. But that is only suitable for detecting the removal effect of total phosphorus, total nitrogen and heavy metal elements in effluent liquid. The existing method for removing microplastic is an emerging field, and the previous method for collecting effluent liquid of the constructed wetland barrel body is not applicable, because the microplastic detection is to take away solid particles of the microplastic for detection, and the element detection such as nitrogen and phosphorus is to take away effluent liquid for detection, therefore, if the effluent is first connected, then the effluent is filtered and the micro-plastic solid particles are picked up, the influence of human factors is amplified, because the manual selection can not take care of all the filtered solid particles, and many solid particles which cannot be seen by eyes can be omitted certainly. And the current device goes out water and the end velocity of flow that intakes is different, can produce the influence to inside constructed wetland environment under rivers impact, influences the data accuracy of experimental process.
Disclosure of Invention
In order to overcome the defects of the prior art method, the utility model aims to provide the vertical flow artificial wetland simulation device which can effectively collect the solid particles of the microplastic in the artificial wetland simulation process, ensure the uniform water inlet and outlet flow speed and improve the test effect.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a vertical flow constructed wetland simulation device comprising:
a barrel body which is used as an artificial wetland simulation carrier, wherein a matrix filler with a microbial film is arranged in the barrel body, a reserved space is arranged above the matrix filler for placing plants;
the water inlet pipe is communicated with the upper part of the barrel body, and a water inlet valve is arranged on the water inlet pipe;
the water outlet pipe is arranged at the bottom of the barrel body and is provided with a water outlet valve;
the short end of the J-shaped pipe is detachably connected with the water outlet pipe, and a screen is arranged at the short end port of the J-shaped pipe; the long part end of the J-shaped pipe extends to the direction of the top end of the barrel body, and the long part pipe body of the J-shaped pipe is mutually parallel to the barrel body.
Further, the constructed wetland matrix filler comprises a cobble cushion layer, a large gravel layer and a small gravel layer which are sequentially overlapped from bottom to top, and the surface of the cobble is wrapped with a microbial film.
Further, the small gravel layer adopts gravel with the grain diameter of 3-6 mm and the thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 6-9 mm and the thickness of 42 cm; the cobble cushion layer adopts cobbles with the particle size of 20-40 mm and the thickness of 5 cm.
Further, the small gravel layer adopts gravel with the grain diameter of 9-12 mm and the thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 12-15 mm and the thickness of 42 cm; the cobble cushion layer adopts cobble cushion layers with the particle diameters of 20-40 mm and the thickness of 5 cm.
Further, the short end of the J-shaped pipe is screwed and connected with the water outlet pipe through threads.
Further, the screen mesh adopts a 300-mesh stainless steel screen mesh to collect solid particles.
Further, the radius of the screen is larger than the radius of the inner wall of the J-shaped pipe and smaller than the radius of the outer wall of the J-shaped pipe, and the screen is erected at the top end of the pipe wall.
Further, a peristaltic pump is connected to the water inlet pipe.
Further, an electric heating wire is wound outside the barrel body.
The beneficial effect of adopting this technical scheme is:
according to the utility model, the J-shaped pipe is detachably connected to the water outlet end at the bottom of the barrel body, so that the water outlet end is led to be flush with the water surface in the barrel body, and therefore, the water inlet end can be used for feeding water and the water outlet end can be used for discharging water, the water inlet and outlet flow is ensured to be consistent, and the influence of water flow on the internal environment of the barrel body is avoided. However, in consideration of the large density of the microplastic, the J-shaped pipe is too long, and solid particles can accumulate in the J-shaped pipe, so that a screen is arranged at the short end to filter the microplastic, and the filtered water overflows from the outlet of the U-shaped pipe.
The water inlet end and the water outlet end of the utility model are both provided with valves so as to conveniently control whether water is inlet or outlet and control the water outlet flow.
Drawings
FIG. 1 is a schematic diagram of a vertical flow constructed wetland simulation device according to the present utility model;
FIG. 2 is a schematic diagram of a connection structure between a J-shaped pipe and a water outlet pipe in an embodiment of the utility model;
FIG. 3 is a schematic illustration of the cooperation of a J-tube with a screen in an embodiment of the present utility model;
wherein 1 is the staving, 2 is matrix packing, 3 is the inlet tube, 4 is the inlet valve, 5 is the outlet pipe, 6 is the outlet valve, 7 is the J-shaped pipe, 8 is the screen cloth, 9 is the screw thread.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
In this embodiment, referring to fig. 1-2, a vertical flow constructed wetland simulation device comprises:
the artificial wetland simulation device comprises a barrel body 1, wherein a matrix filler 2 with a microbial film is placed in the barrel body 1 as an artificial wetland simulation carrier, and a reserved space for placing plants is arranged above the matrix filler 2;
the water inlet pipe 3 is communicated with the upper part of the barrel body 1, and a water inlet valve 4 is arranged on the water inlet pipe 3;
the water outlet pipe 5 is arranged at the bottom of the barrel body 1, and a water outlet valve 6 is arranged on the water outlet pipe 5;
the short end of the J-shaped pipe 7,J pipe 7 is detachably connected with the water outlet pipe 5, and a screen 8 is arranged at the short end port of the J-shaped pipe 7; the long end of the J-shaped pipe 7 extends to the direction of the top end of the barrel body 1, and the long pipe body of the J-shaped pipe 7 is parallel to the barrel body 1.
Specifically, the barrel body 1 is made of organic glass with the radius of 18cm and the height of 100 cm. Matrix layers with different particle sizes and different depths are filled in each barrel body 1 according to experimental requirements in advance, and microbial films are maintained in the matrix layers so as to simulate the artificial wetland matrix.
As an optimization scheme of the above embodiment, the constructed wetland matrix filler 2 comprises a cobble cushion layer, a large gravel layer and a small gravel layer which are sequentially overlapped from bottom to top, and the surface of the cobble is wrapped with a microbial film.
According to the scheme I, the small gravel layer adopts gravel with the particle size of 3-6 mm and the thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 6-9 mm and the thickness of 42 cm; the cobble cushion layer adopts cobbles with the particle size of 20-40 mm and the thickness of 5 cm.
In the second scheme, the small gravel layer adopts gravel with the particle size of 9-12 mm and the thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 12-15 mm and the thickness of 42 cm; the cobble cushion layer adopts cobble cushion layers with the particle diameters of 20-40 mm and the thickness of 5 cm.
As an optimization scheme of the embodiment, the short end of the J-shaped pipe 7 is screwed and connected with the water outlet pipe 5 through threads 9.
The screen 8 was a 300 mesh stainless steel screen to collect solid particles.
The radius of the screen 8 is larger than the radius of the inner wall of the J-shaped pipe 7 and smaller than the radius of the outer wall of the J-shaped pipe 7, and is erected at the top end of the pipe wall as shown in figure 3, R D <R W <R De 。
As an optimization of the above embodiment, a peristaltic pump is connected to the inlet pipe 3. The peristaltic pump supplies water and controls the inflow rate, one end of the hose is connected with tap water or synthetic wastewater added with microplastic, and the other end of the hose extends into the barrel body 1 from the valve at the top end of the barrel body 1.
As an optimization scheme of the above embodiment, the electric heating wire is wound outside the barrel body 1. It can heat the barrel body 1, and the electric heating wire is provided with a temperature controller (the temperature control range is-55-110 ℃), so that the microbial film can be successfully cultivated in the climates which are wet and cold all the year round, or the microorganisms which are not viable are cultivated when the temperature is too cold.
For a better understanding of the present utility model, the following is a complete description of the principles of the utility model:
(1) each barrel body 1 is supplied with water by a peristaltic pump, the inflow rate is controlled, one end of a hose is connected with tap water or synthetic wastewater added with micro plastic (the micro plastic concentration of the tap water or the synthetic wastewater is set to be 30 parts per liter according to the micro plastic content in rainwater), and the other end of the hose extends into the barrel body 1 from a valve at the top end of the barrel body 1.
(2) And closing the valve at the lower end of the barrel body 1. The hydraulic load is designed to be 0.8m/d according to the requirement of the vertical flow constructed wetland, a peristaltic pump is started, and liquid is conveyed into the barrel body 1 so as to feed the constructed wetland. When the liquid level is 5cm higher than the top layer of the matrix, the valve at the lower end of the barrel body 1 is slowly opened, and the flow at the lower end is controlled to be the same as the flow pumped by the peristaltic pump at the top end as much as possible, so that the liquid level is ensured to be stable when the liquid passes through the barrel body 1 from top to bottom.
(3) A J-shaped pipe is arranged below each barrel body 1, a stainless steel mesh screen with a size of 300 meshes and 48 mu m is arranged at the short end of the J-shaped pipe to collect solid particles (microplastic), and the solid particles on the mesh screen are collected once every five days for detection.
The specific mechanism of the constructed wetland for removing the microplastic is to flocculate and precipitate the microplastic particles in the liquid by the interception effect of the matrix, the adsorption effect of the microbial film and the influence of animals and plants, so as to achieve the removal effect.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. A vertical flow constructed wetland simulation device, comprising:
the artificial wetland simulation device comprises a barrel body (1) serving as an artificial wetland simulation carrier, wherein a matrix filler (2) with a microbial film is placed in the barrel body (1), and a reserved space for placing plants is arranged above the matrix filler (2);
the water inlet pipe (3) is communicated with the upper part of the barrel body (1), and a water inlet valve (4) is arranged on the water inlet pipe (3);
the water outlet pipe (5) is arranged at the bottom of the barrel body (1), and a water outlet valve (6) is arranged on the water outlet pipe (5);
the short end of the J-shaped pipe (7) is detachably connected with the water outlet pipe (5), and a screen (8) is arranged at the short end port of the J-shaped pipe (7); the long end of the J-shaped pipe (7) extends to the direction of the top end of the barrel body (1), and the long pipe body of the J-shaped pipe (7) is parallel to the barrel body (1).
2. The vertical flow artificial wetland simulation device according to claim 1, wherein the matrix filler (2) of the artificial wetland comprises a cobble cushion layer, a large gravel layer and a small gravel layer which are sequentially overlapped from bottom to top, and microbial films are wrapped on the surface of the cobbles.
3. The vertical flow artificial wetland simulation device according to claim 2, wherein the small gravel layer adopts gravel with a grain size of 3-6 mm and a thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 6-9 mm and the thickness of 42 cm; the cobble cushion layer adopts cobbles with the particle size of 20-40 mm and the thickness of 5 cm.
4. The vertical flow artificial wetland simulation device according to claim 2, wherein the small gravel layer adopts gravel with a diameter of 9-12 mm and a thickness of 18 cm; the large gravel layer adopts gravel with the grain diameter of 12-15 mm and the thickness of 42 cm; the cobble cushion layer adopts cobble cushion layers with the particle diameters of 20-40 mm and the thickness of 5 cm.
5. A vertical flow artificial wetland simulation device according to claim 1, wherein the short end of the J-shaped pipe (7) is screwed and connected with the water outlet pipe (5) by means of threads (9).
6. A vertical flow constructed wetland simulation device according to claim 1, wherein the screen (8) is a 300 mesh stainless steel screen.
7. A vertical flow artificial wetland simulation device according to claim 1 or 6, wherein the screen (8) has a radius larger than the radius of the inner wall of the J-shaped pipe (7) and smaller than the radius of the outer wall of the J-shaped pipe (7), and is arranged at the top end of the pipe wall.
8. A vertical flow artificial wetland simulation device according to claim 1, characterized in that a peristaltic pump is connected at the water inlet pipe (3).
9. A vertical flow artificial wetland simulation device according to claim 1, wherein an electric heating wire is wound outside the barrel body (1).
CN202320013295.0U 2023-01-04 2023-01-04 Vertical current artificial wetland simulation device Active CN219567711U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320013295.0U CN219567711U (en) 2023-01-04 2023-01-04 Vertical current artificial wetland simulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320013295.0U CN219567711U (en) 2023-01-04 2023-01-04 Vertical current artificial wetland simulation device

Publications (1)

Publication Number Publication Date
CN219567711U true CN219567711U (en) 2023-08-22

Family

ID=87665009

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320013295.0U Active CN219567711U (en) 2023-01-04 2023-01-04 Vertical current artificial wetland simulation device

Country Status (1)

Country Link
CN (1) CN219567711U (en)

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