Modular wetland equipment for agricultural surface pollution treatment

Abstract

The utility model relates to the technical field of water pollution treatment, and discloses modularized wetland equipment for agricultural surface pollution treatment. Comprising a wetland accommodating tank, drainage mechanisms arranged at the lower parts of the two sides of the wetland accommodating tank and used for draining water, water inlet pipes fixedly connected to the middle parts of the two sides of the wetland accommodating tank in a penetrating manner, detection mechanisms arranged on the inner walls of the water inlet pipes, filtering mechanisms arranged on liquid inlet ports of the water inlet pipes, and water injection mechanisms arranged on liquid inlet ports of the filtering mechanisms, the supporting mechanism is arranged on the bottom surface of the inner wall of the wetland accommodating tank; the inner box is fixedly connected to the upper end of the supporting mechanism; the limiting frame is fixedly connected to the upper part of the side wall of the inner box; the first tank body penetrates through the middle parts of the two sides of the inner box; the device has the advantages that agricultural surface polluted water can be quickly added to the modularized shell, the pH value of the agricultural surface polluted water can be quickly detected, and the ecological floating bed in the shell can be conveniently and quickly mounted and dismounted.

Description

Technical Field

[0001] This utility model relates to the field of water pollution control technology, specifically a modular wetland device for treating agricultural non-polluting areas. Background Technology

[0002] Agricultural non-point source pollution, with its hidden and dispersed characteristics, has become a core challenge for the protection of water sources. Pollution sources such as fertilizer runoff and farmland drainage can enter water bodies through surface runoff, leading to excessive nitrate levels and degradation of ecological functions in the water.

[0003] Currently, constructed wetlands have become one of the mainstream governance technologies due to their advantages of being eco-friendly and having low operating costs. Most existing modular wetlands adopt a splicing structure, but in practical applications, it is difficult to quickly add agricultural surface pollutants to the modular shell, and it is also difficult to quickly detect the pH of agricultural surface pollutants. Furthermore, it is inconvenient to quickly install and dismantle the ecological floating beds set inside the modular shell, which needs further improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a modular wetland device for treating agricultural surface pollution, which has the advantages of being able to quickly add agricultural surface pollution water to the modular shell, quickly detect the acidity and alkalinity of agricultural surface pollution water, and conveniently install and disassemble the ecological floating bed inside the shell, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modular wetland device for treating agricultural non-polluting includes a wetland holding tank, a drainage mechanism disposed on the lower part of both sides of the wetland holding tank for drainage, a water inlet pipe that is fixed through the middle of both sides of the wetland holding tank, a detection mechanism disposed on the inner wall of the water inlet pipe, a filtration mechanism disposed on the liquid inlet port of the water inlet pipe, a water injection mechanism disposed on the liquid inlet port of the filtration mechanism, a support mechanism disposed on the bottom surface of the inner wall of the wetland holding tank, an inner box fixed to the upper end of the support mechanism, a limiting frame fixed to the upper part of the side wall of the inner box, a first tank body that is opened through the middle of both sides of the inner box, and a second filter plate fixed to the inner wall of the first tank body.

[0007] The side wall of the limiting frame fits into the inner wall of the wetland containment tank;

[0008] The outlet end of the inlet pipe extends to the inner wall of the wetland containment tank, and the outlet end of the inlet pipe corresponds to the center of the second filter plate.

[0009] A fixed frame is fixed to the inner wall of the inner box. Multiple second grooves are opened at the upper two sides of the fixed frame. An installation block is placed on the inner wall of two corresponding second grooves on different sides. A planting mechanism is set on the installation block.

[0010] Preferably, the detection mechanism includes a fixed plate fixed to the inner wall of the inlet pipe, an inclined plate fixed to one end of the fixed plate near the center of the wetland containment tank, and a pH detection sensor fixed to one end of the fixed plate near the center of the wetland containment tank, with the pH detection sensor located above the inclined plate.

[0011] It is worth noting that the testing mechanism uses a fixed plate to ensure the stable installation of the inclined plate and pH sensor inside the water inlet pipe. The inclined plate is located below the pH sensor and can guide the water flow in the water inlet pipe to flow smoothly along the inclined plate. At the same time, the pH sensor can monitor the pH value of the inlet water in real time, making it convenient for users to know the acidity or alkalinity of agricultural surface polluted water.

[0012] Preferably, the filtration mechanism includes a riser fixed to the upper end of the water inlet pipe, a second valve body disposed on the riser, a filter box fixed to the upper end of the second valve body, and a first filter plate fixed to the inner wall of the filter box, wherein the detection end of the pH detection sensor is located directly below the riser.

[0013] It is worth noting that the first filter plate can filter rainwater, and the second valve body can flexibly control the opening and closing of the riser. When the filter box or the first filter plate needs cleaning and maintenance, the valve body can be closed without stopping the operation of the entire equipment.

[0014] Preferably, the water injection mechanism includes a connecting pipe fixed to the water inlet end of the two filter boxes, a water injection pipe fixed to the connecting pipe, and a third valve body disposed on the water injection pipe.

[0015] It is worth noting that the water injection mechanism connects the two filter boxes through a connecting pipe, allowing agricultural surface polluted water to enter the connecting pipe through the water injection pipe and then be evenly distributed to the two filter boxes. This avoids excessive water load on one side of the filter box and ensures uniform water intake on both sides of the water inlet pipe.

[0016] Preferably, the drainage mechanism includes a drain pipe that is fixedly connected to the lower part of both sides of the wetland containment tank, a sealing box fixedly connected to the side wall of the drain pipe, and a first valve body disposed on the drain pipe, the first valve body being located inside the sealing box.

[0017] It is worth noting that in the drainage mechanism, the drainage pipes are located at the lower part of both sides of the wetland containment tank, which ensures that excess agricultural surface polluted water in the wetland containment tank is discharged. Then, the polluted water is pumped back in by an external pump, allowing the plants to absorb and purify it. This can prevent the plants from dying due to excessive pollution. The sealing box wraps around the first valve body, which can effectively isolate it from external rainwater, soil, corrosive gases, etc., prevent the first valve body from rusting, and extend the service life of the first valve body.

[0018] Preferably, the support mechanism includes two support blocks fixed to the bottom of the inner wall of the wetland containment tank, a square steel frame fixed to the upper end of the two support blocks, and multiple connecting columns fixed to both ends of the inner wall of the square steel frame, with the upper end of the connecting columns and the lower end of the inner tank being fixed to each other.

[0019] It is worth noting that the support mechanism provides stable support for the square steel frame by fixing the support blocks to the bottom of the wetland containment tank. The square steel frame itself has high structural strength and can withstand the weight of the inner box, the water inside the box, and the planting mechanism. Multiple connecting columns are evenly distributed on the inner wall of the square steel frame, which can evenly transfer the weight of the inner box to the square steel frame, avoiding excessive local stress on the inner box and deformation. The support structure has strong overall stability and is suitable for long-term outdoor use.

[0020] Preferably, the lower end face of the wetland containment tank is semi-circular, and two bottom blocks are fixed to the lower end of the wetland containment tank, the length of the bottom blocks being equal to the length of the wetland containment tank.

[0021] It is worth noting that the bottom block is fixed to the lower end of the wetland containment tank, and the length of the bottom block is the same as that of the tank body. This can greatly increase the contact area between the tank body and the ground, reduce the pressure of the tank body on the ground, and prevent the tank body from sinking into the soft farmland ground due to its own weight, thus ensuring the stability of the equipment installation.

[0022] Preferably, the lower end face of the wetland containment tank is rectangular.

[0023] It is worth noting that it can be quickly and easily deployed in the area where it is needed.

[0024] Preferably, the planting mechanism includes a U-shaped block hung on the side wall of the mounting block, a fixing block fixed to the lower end of the two U-shaped blocks, a column fixed to the lower end of the fixing block, and a first planting box fixed to the lower end of the column. The lower end of the first planting box has multiple first through holes, and the two first planting boxes have screw holes at their close ends. The inner walls of the two screw holes are threaded with an external threaded cylinder.

[0025] It is worth noting that the planting mechanism is attached to the mounting block by a U-shaped block, which allows for quick assembly and disassembly of the first planting box. This facilitates the replacement of different types of aquatic plants (such as canna lilies, reeds, etc.) according to treatment needs, or makes it easy to clean and maintain the planting box. The first through hole at the bottom of the first planting box allows water to flow in and out smoothly, ensuring that the plant roots are in full contact with the polluted water, which improves the absorption and degradation efficiency of pollutants such as nitrogen and phosphorus, while preventing water accumulation in the inner box from causing root rot. The two first planting boxes are connected by an external threaded cylinder, which can enhance the overall structural stability of the planting box.

[0026] Preferably, the planting mechanism includes a second planting box fixed to the lower end of a plurality of mounting blocks, a plurality of planting grooves opened at the upper end of the second planting box, and a second through hole evenly distributed through the lower end of the second planting box.

[0027] It is worth noting that in this planting structure, the second planting box is fixed to the lower end of multiple mounting blocks, ensuring strong installation stability and preventing displacement caused by water flow impact. Multiple planting troughs can simultaneously plant multiple aquatic plants, enhancing the treatment capacity for different types of pollutants and expanding the scope of pollution treatment.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] 1. This utility model effectively solves the problem of existing equipment being unable to quickly add agricultural surface polluted water through the coordinated design of external pump body, water injection mechanism and filtration mechanism. The agricultural surface polluted water is pre-filtered by external equipment, and then the external pump body is used as a power source to transport the pre-treated sewage to the water injection pipe of the water injection mechanism. The water injection pipe distributes the sewage evenly to the filter boxes on both sides of the equipment through connecting pipe. The first filter plate of the filtration mechanism can also intercept impurities carried by rainwater, which can realize the utilization of rainwater and facilitate the rapid addition of agricultural surface polluted water into the wetland holding tank.

[0030] 2. This utility model solves the problem that existing equipment is difficult to quickly detect the acidity and alkalinity of agricultural surface polluted water by setting a detection mechanism on the inner wall of the water inlet pipe. The detection mechanism is fixedly installed in the water inlet pipe by a fixed plate. An inclined plate and a pH detection sensor are fixedly connected to the side of the fixed plate near the wetland holding tank. The inclined plate is located below the pH detection sensor. When the sewage transported by the external pump flows through the water inlet pipe, the pH detection sensor can directly contact the sewage and collect the acidity and alkalinity information of the sewage in real time.

[0031] 3. This utility model solves the problem of inconvenient quick installation and disassembly of the ecological floating bed inside the shell of existing equipment by designing two quick-disassembly planting mechanisms. For scenarios that require frequent replacement of aquatic plants or cleaning of planting boxes, the first planting mechanism uses a U-shaped block to hang on the mounting block of the inner box fixing frame. The first planting box can be quickly installed by hanging it. When disassembling, the U-shaped block is removed from the mounting block, and the first planting box can be taken out directly. Then, the external threaded cylinder between the two first planting boxes is unscrewed to disconnect the two first planting boxes. The entire process does not require disassembling the inner box or wetland container, and the operation time is short. At the same time, the first through hole at the bottom of the first planting box can ensure the smooth flow of sewage and ensure that the plant roots fully contact the sewage to improve the purification efficiency.

[0032] 4. For scenarios requiring stable installation and minimizing displacement due to water flow impact, the second planting box of the second type of planting mechanism is directly fixed to the lower end of the mounting block, while the mounting block can be directly placed into the second groove of the fixed frame. During disassembly and assembly, simply remove or place the mounting block from the second groove to simultaneously complete the disassembly and installation of the second planting box, making it convenient to use. Attached Figure Description

[0033] Figure 1The diagram shown is a three-dimensional structural schematic of this utility model;

[0034] Figure 2 The diagram shown is a three-dimensional structural schematic of the filtration mechanism and water injection mechanism of this utility model.

[0035] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the testing mechanism of this utility model.

[0036] Figure 4 The diagram shown is a three-dimensional structural schematic of the drainage mechanism of this utility model.

[0037] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the support mechanism of this utility model.

[0038] Figure 6 The diagram shown is a three-dimensional structural schematic of the fixing frame of this utility model;

[0039] Figure 7 The diagram shown is a three-dimensional structural schematic of the first embodiment of the planting mechanism of this utility model;

[0040] Figure 8 The diagram shown is a three-dimensional structural schematic of the second embodiment of the planting mechanism of this utility model;

[0041] Figure 9 The diagram shown is a three-dimensional structural schematic of the fourth embodiment of the wetland containment tank of this utility model.

[0042] Reference numerals: 1. Wetland containment tank; 2. Bottom block; 3. Drainage mechanism; 31. Drainage pipe; 32. Sealing box; 33. First valve body; 4. Water inlet pipe; 41. Fixing plate; 42. Inclined plate; 43. pH sensor; 5. Filtration mechanism; 51. Riser; 52. Second valve body; 53. Filter box; 54. First filter plate; 6. Water injection mechanism; 61. Connecting pipe; 62. Water injection pipe; 63. Third valve body; 7. Inner box; 71. Support block; 72. Square steel frame; 73. Connecting column; 8. Limiting frame; 9. First trough; 10. Second filter plate; 11. Fixing frame; 12. Second trough; 13. Mounting block; 14. U-shaped block; 15. Fixing block; 16. Column; 17. First planting box; 18. First through hole; 19. External threaded cylinder; 20. Second planting box; 21. Planting trough; 22. Second through hole. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] To address the limitations of existing technologies, such as the difficulty in rapidly adding agricultural surface wastewater to modular shells, the difficulty in quickly detecting the pH of agricultural surface wastewater, and the inconvenience in quickly installing and dismantling the ecological floating beds installed within the modular shells, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-9 ,

[0045] A modular wetland device for treating agricultural non-polluting includes a wetland holding tank 1, a drainage mechanism 3 disposed on the lower part of both sides of the wetland holding tank 1 for drainage, a water inlet pipe 4 that is fixed through the middle of both sides of the wetland holding tank 1, a detection mechanism disposed on the inner wall of the water inlet pipe 4, a filtration mechanism 5 disposed on the liquid inlet port of the water inlet pipe 4, a water injection mechanism 6 disposed on the liquid inlet port of the filtration mechanism 5, a support mechanism disposed on the bottom surface of the inner wall of the wetland holding tank 1, an inner box 7 fixed to the upper end of the support mechanism, a limiting frame 8 fixed to the upper part of the side wall of the inner box 7, a first tank 9 that is opened through the middle of both sides of the inner box 7, and a second filter plate 10 fixed to the inner wall of the first tank 9.

[0046] The side wall of the limiting frame 8 is fitted to the inner wall of the wetland containment tank 1;

[0047] The outlet end of the inlet pipe 4 extends to the inner wall of the wetland container tank 1, and the outlet end of the inlet pipe 4 corresponds to the center of the second filter plate 10.

[0048] A fixing frame 11 is fixed to the inner wall of the inner box 7. Multiple second grooves 12 are opened at the upper two sides of the fixing frame 11. An installation block 13 is placed on the inner wall of two corresponding second grooves 12 on different sides. A planting mechanism is provided on the installation block 13.

[0049] In use, a pit is dug in the ground, and the entire device is placed inside the pit. Then, the planting mechanism is placed on the mounting block 13. Since the side wall of the limiting frame 8 is in contact with the inner wall of the wetland holding tank 1, the filtered agricultural surface polluted water is injected into the filter mechanism 5 through the water injection mechanism 6 using an external pump. The filter mechanism 5 can also temporarily store rainwater. Then, the filter mechanism 5 is turned on to inject the agricultural surface polluted water into the water inlet pipe 4. The agricultural surface polluted water flows into the wetland holding tank 1 through the water inlet pipe 4. Then, as the water level in the wetland holding tank 1 increases, the agricultural surface polluted water can flow into the inner box 7 through the second filter plate 10. The plants planted in the planting mechanism can purify the agricultural surface polluted water. When it is necessary to discharge the purified agricultural surface polluted water in the wetland holding tank 1, the purified agricultural surface polluted water in the wetland holding tank 1 can be discharged into the nearby wetland by turning on the drainage mechanism 3. When it is necessary to purify the agricultural surface polluted water in the nearby wetland, the above steps can be repeated.

[0050] In this embodiment, the detection mechanism specifically includes a fixed plate 41 fixed to the inner wall of the water inlet pipe 4, an inclined plate 42 fixed to the fixed plate 41 near the center of the wetland container tank 1, and a pH detection sensor 43 fixed to the fixed plate 41 near the center of the wetland container tank 1. The pH detection sensor 43 is located above the inclined plate 42.

[0051] In this embodiment, specifically: the filtration mechanism 5 includes a riser 51 fixed to the upper end of the water inlet pipe 4, a second valve body 52 disposed on the riser 51, a filter box 53 fixed to the upper end of the second valve body 52, and a first filter plate 54 fixed to the inner wall of the filter box 53. The detection end of the pH detection sensor 43 is located directly below the riser 51.

[0052] In this embodiment, specifically: the water injection mechanism 6 includes a connecting pipe 61 fixed to the water inlet end of the two filter boxes 53, a water injection pipe 62 fixed to the connecting pipe 61, and a third valve body 63 disposed on the water injection pipe 62.

[0053] In this embodiment, specifically: the drainage mechanism 3 includes a drainage pipe 31 that is fixed to the lower part of both sides of the wetland container tank 1, a sealing box 32 fixed to the side wall of the drainage pipe 31, and a first valve body 33 disposed on the drainage pipe 31. The first valve body 33 is located inside the sealing box 32.

[0054] In this embodiment, specifically: the support mechanism includes two support blocks 71 fixed to the bottom of the inner wall of the wetland containment tank 1, a square steel frame 72 fixed to the upper end of the two support blocks 71, and multiple connecting columns 73 fixed to both ends of the inner wall of the square steel frame 72. The upper end of the connecting column 73 and the lower end of the inner box 7 are fixed to each other.

[0055] Example 1: In this example, the planting mechanism specifically includes a U-shaped block 14 hanging on the side wall of the mounting block 13, a fixing block 15 fixed to the lower end of the two U-shaped blocks 14, a column 16 fixed to the lower end of the fixing block 15, and a first planting box 17 fixed to the lower end of the column 16. The lower end of the first planting box 17 is provided with multiple first through holes 18. The ends of the two first planting boxes 17 that are close to each other are provided with threaded holes. The inner walls of the two threaded holes are threaded with an external threaded cylinder 19.

[0056] The first planting box 17 can be quickly disassembled and assembled by hanging the U-shaped block 14 on the mounting block 13, which is convenient for replacing aquatic plants or cleaning the first planting box 17. The first through hole 18 at the lower end of the first planting box 17 allows water to flow in and out smoothly, ensuring that the plant roots are in full contact with the polluted water to improve the purification efficiency, while avoiding water accumulation in the inner box 7 that could cause root rot. The two first planting boxes 17 are connected by the external threaded cylinder 19, which can enhance the overall structural stability of the planting mechanism and prevent displacement caused by water flow impact.

[0057] Example 2: In this example, the planting mechanism specifically includes a second planting box 20 fixed to the lower end of multiple mounting blocks 13, multiple planting grooves 21 opened at the upper end of the second planting box 20, and a second through hole 22 evenly distributed through the lower end of the second planting box 20.

[0058] The second planting box 20 is fixed to the lower end of multiple mounting blocks 13, ensuring strong installation stability. The multiple planting troughs 21 at the upper end of the second planting box 20 can simultaneously plant multiple aquatic plants of different types, which can improve the treatment capacity for different pollutants and expand the pollution treatment range. The evenly distributed second through holes 22 at the lower end of the second planting box 20 can ensure that water enters and exits evenly, ensuring that the plant roots are in full contact with the polluted water, further improving the purification efficiency.

[0059] Example 3: In this example, specifically: the lower end face of the wetland container tank 1 is semi-circular, and two bottom blocks 2 are fixed to the lower end of the wetland container tank 1. The length of the bottom blocks 2 is equal to the length of the wetland container tank 1. Fixing two bottom blocks 2 to the lower end of the wetland container tank 1 can improve the stability of the wetland container tank 1 and make it suitable for more terrains.

[0060] Example 4: The difference from Example 3 is that the lower end face of the wetland containment tank 1 is rectangular, which makes it easy to place the wetland containment tank 1 quickly and stably at the location where it needs to be deployed.

[0061] Working principle: Before use, dig a pit in the land of the area to be installed that is compatible with the size of wetland containment tank 1. Place the wetland containment tank 1 into the pit. The two bottom blocks 2 fixed to the lower end of the wetland containment tank 1 can increase the contact area between the tank and the ground, reduce the pressure and prevent the tank from sinking into the soft farmland ground, thus ensuring the stability of the equipment installation.

[0062] Then, according to the pollution treatment requirements, the corresponding planting mechanism is selected for installation. If the planting mechanism of Example 1 is selected, the screw holes of the two first planting boxes 17 that are close to each other are firstly threaded to the external threaded cylinder 19 to enhance the overall stability of the first planting box 17. Then, the U-shaped block 14 is hung on the side wall of the mounting block 13 on the fixed frame 11.

[0063] If the planting mechanism of Embodiment 2 is selected, the second planting box 20 is fixed to the lower end of multiple mounting blocks 13, and then the mounting blocks 13 are placed into the corresponding second grooves 12 opened on both sides of the upper end of the fixed frame 11 to complete the installation of the planting mechanism. The limiting frame 8 on the upper side wall of the inner box 7 is in contact with the inner wall of the wetland container tank 1, which can ensure that the position of the inner box 7 in the wetland container tank 1 is stable and avoids displacement.

[0064] When the equipment is started, the pretreated agricultural surface polluted water is transported to the water injection pipe 62 of the water injection mechanism 6 by the external pump body. The third valve body 63 on the water injection pipe 62 is opened, and the agricultural surface polluted water is evenly distributed to the filter box 53 of the two-sided filter mechanism 5 through the connecting pipe 61.

[0065] Next, open the second valve body 52 on the riser 51 in the filter mechanism 5. Agricultural surface polluted water flows into the inlet pipe 4 through the riser 51. At this time, the detection mechanism on the inner wall of the inlet pipe 4 starts to work. The fixed plate 41 firmly supports the inclined plate 42 and the pH detection sensor 43. The inclined plate 42 guides the water flow to flow smoothly along its surface, ensuring that the pH detection sensor 43 can fully contact the water flow, collect and feedback the acidity and alkalinity information of the agricultural surface polluted water in real time, so that users can understand the water quality. When in use, a sealed box 32 can be set outside the wetland containment tank 1. A controller and a wireless transceiver are set inside the sealed box 32 to transmit the detection information of the pH detection sensor 43 through wireless signals.

[0066] Agricultural surface wastewater flows into wetland containment tank 1 from the outlet of inlet pipe 4. As the water level in wetland containment tank 1 gradually rises, the agricultural surface wastewater flows into the inner tank 7 after being filtered of impurities by the second filter plate 10. The inner tank 7 is stably supported by a support mechanism. The support block 71 on the bottom of the inner wall of wetland containment tank 1 supports the square steel frame 72. Multiple connecting columns 73 at both ends of the inner wall of the square steel frame 72 evenly transfer the weight of the inner tank 7 to the square steel frame 72, avoiding local deformation of the inner tank 7.

[0067] The aquatic plants (such as canna lilies, reeds, etc.) in the planting mechanism inside the inner box 7 absorb and degrade pollutants such as nitrogen and phosphorus in the agricultural surface polluted water through their roots. In Example 1, the multiple first through holes 18 at the lower end of the first planting box 17 can ensure smooth water flow, ensuring that the plant roots are in full contact with the polluted water while avoiding water accumulation in the inner box 7 that could cause root rot. In Example 2, the multiple planting troughs 21 at the upper end of the second planting box 20 can simultaneously plant multiple aquatic plants of different types, expanding the pollution treatment range. The evenly distributed second through holes 22 at the lower end can ensure uniform water flow, further improving purification efficiency.

[0068] When the agricultural surface wastewater purification is complete or the water in the wetland containment tank 1 needs to be replaced, the first valve 33 inside the sealed box 32 in the drainage mechanism 3 is opened, and the purified water in the wetland containment tank 1 is discharged into the nearby wetland through the drain pipe 31. The sealed box 32 can isolate external rainwater, soil, and corrosive gases, prevent the first valve 33 from rusting and extend its service life. If it is necessary to continuously purify the agricultural surface wastewater in the nearby wetland, the above steps of water injection, filtration, detection, purification and drainage can be repeated to achieve cyclic treatment.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0070] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A modular wetland device for treating agricultural non-polluting areas, characterized in that: It includes a wetland containment tank (1), a drainage mechanism (3) set on the lower part of both sides of the wetland containment tank (1) for drainage, a water inlet pipe (4) fixed through the middle of both sides of the wetland containment tank (1), a detection mechanism set on the inner wall of the water inlet pipe (4), a filter mechanism (5) set on the liquid inlet port of the water inlet pipe (4), a water injection mechanism (6) set on the liquid inlet port of the filter mechanism (5), a support mechanism set on the bottom surface of the inner wall of the wetland containment tank (1), an inner box (7) fixed to the upper end of the support mechanism, a limiting frame (8) fixed to the upper part of the side wall of the inner box (7), a first tank (9) opened through the middle of both sides of the inner box (7), and a second filter plate (10) fixed to the inner wall of the first tank (9). The side wall of the limiting frame (8) is attached to the inner wall of the wetland containment tank (1); The outlet end of the inlet pipe (4) extends to the inner wall of the wetland container tank (1), and the outlet end of the inlet pipe (4) corresponds to the center of the second filter plate (10); The inner wall of the inner box (7) is fixed with a fixed frame (11). Multiple second grooves (12) are opened at the upper two sides of the fixed frame (11). The inner walls of two corresponding second grooves (12) on different sides are jointly placed with an installation block (13). The installation block (13) is equipped with a planting mechanism.

2. The modular wetland equipment for treating agricultural non-polluting conditions according to claim 1, characterized in that: The detection mechanism includes a fixed plate (41) fixed to the inner wall of the water inlet pipe (4), an inclined plate (42) fixed to the fixed plate (41) near the center of the wetland container tank (1), and a pH detection sensor (43) fixed to the fixed plate (41) near the center of the wetland container tank (1). The pH detection sensor (43) is located above the inclined plate (42).

3. The modular wetland equipment for treating agricultural non-polluting conditions according to claim 2, characterized in that: The filtration mechanism (5) includes a riser (51) fixed to the upper end of the inlet pipe (4), a second valve body (52) set on the riser (51), a filter box (53) fixed to the upper end of the second valve body (52), and a first filter plate (54) fixed to the inner wall of the filter box (53). The detection end of the pH detection sensor (43) is located directly below the riser (51).

4. The modular wetland equipment for treating agricultural non-polluting areas according to claim 3, characterized in that: The water injection mechanism (6) includes a connecting pipe (61) fixed to the water inlet end of the two filter boxes (53), a water injection pipe (62) fixed to the connecting pipe (61), and a third valve body (63) set on the water injection pipe (62).

5. The modular wetland equipment for treating agricultural non-polluting conditions according to claim 1, characterized in that: The drainage mechanism (3) includes a drain pipe (31) that is fixed to the lower part of both sides of the wetland container tank (1), a sealing box (32) fixed to the side wall of the drain pipe (31), and a first valve body (33) disposed on the drain pipe (31). The first valve body (33) is located inside the sealing box (32).

6. The modular wetland equipment for treating agricultural non-polluting areas according to claim 1, characterized in that: The support mechanism includes two support blocks (71) fixed to the bottom of the inner wall of the wetland containment tank (1), a square steel frame (72) fixed to the upper end of the two support blocks (71), and multiple connecting columns (73) fixed to both ends of the inner wall of the square steel frame (72). The upper end of the connecting column (73) and the lower end of the inner box (7) are fixed to each other.

7. The modular wetland equipment for treating agricultural non-polluting areas according to claim 1, characterized in that: The lower end of the wetland containment tank (1) is semi-circular, and two bottom blocks (2) are fixed to the lower end of the wetland containment tank (1). The length of the bottom blocks (2) is equal to the length of the wetland containment tank (1).

8. The modular wetland equipment for treating agricultural non-polluting areas according to claim 1, characterized in that: The bottom surface of the wetland containment tank (1) is rectangular.

9. A modular wetland device for treating agricultural non-polluting conditions according to claim 1, characterized in that: The planting mechanism includes a U-shaped block (14) hanging on the side wall of the mounting block (13), a fixing block (15) fixed to the lower end of the two U-shaped blocks (14), a column (16) fixed to the lower end of the fixing block (15), and a first planting box (17) fixed to the lower end of the column (16). The lower end of the first planting box (17) is provided with multiple first through holes (18). The two first planting boxes (17) are provided with threaded holes at their respective ends. The inner walls of the two threaded holes are threaded with an external threaded cylinder (19).

10. A modular wetland device for treating agricultural non-polluting conditions according to claim 1, characterized in that: The planting mechanism includes a second planting box (20) fixed to the lower end of multiple mounting blocks (13), multiple planting troughs (21) opened at the upper end of the second planting box (20), and a second through hole (22) evenly distributed through the lower end of the second planting box (20).

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