Modularized anti-clogging wetland system

Abstract

The invention relates to the technical field of purification, in particular to a modular anti-clogging wetland system which comprises a wetland body, and the upper portion of the side, away from a water source, of the wetland body is connected with a drainage system; the wetland main body internally comprises a front partition and a rear partition which are formed by division; the wetland main body is filled with filler; the multidirectional water distribution device is arranged in the front partition and used for distributing introduced water flow in multiple directions; and the water outlet end of the multidirectional water distribution device extends to the rear partition and is communicated with the rear partition. According to the modularized anti-clogging wetland system provided by the invention, local hydrodynamic force in the multi-direction clockwise or anticlockwise direction in the wetland system is realized through the multi-direction water distribution device, so that internal water flow drives the filler to flow and fully contact and collide with sewage, and rapid growth and falling of microorganisms are realized; the sewage treatment efficiency and the anti-blocking capability are improved.

Description

Technical Field

[0001] The present invention relates to the field of purification technology, and in particular to a modular anti-clogging wetland system. Background Art

[0002] Existing modular constructed wetland technologies have problems such as high investment costs, limited hydraulic load, and easy clogging; especially the clogging problem, which easily leads to difficulties in technology promotion, a decrease in hydraulic load, and an increase in operation and maintenance management costs, etc. There is a need to adopt new wetland structures, new fillers, and new water distribution methods to achieve higher treatment efficiency, lower costs, and greater hydraulic load.

[0003] The existing modular constructed wetland technology has a single water flow direction for water distribution and collection. After long-term use, it is prone to clogging, resulting in problems such as inconsistent water volume before and after, disharmony between the modular wetland system and the terrain, and large differences in the monomer combination method and design during large-scale and large-volume applications, etc., making it difficult to quickly promote and apply. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a modular anti-clogging wetland system.

[0005] In a first aspect, an embodiment of the present invention provides a modular anti-clogging wetland system, including:

[0006] A wetland main body, the upper part of the side of the wetland main body away from the water source is connected to the drainage system; the wetland main body includes a front partition and a rear partition formed by division; the wetland main body is filled with fillers;

[0007] A multi-directional water distribution device, arranged in the front partition, the multi-directional water distribution device is used to distribute the incoming water flow in multiple directions; the water outlet end of the multi-directional water distribution device extends to the rear partition and communicates with the rear partition.

[0008] In combination with the first aspect, the multi-directional water distribution device includes:

[0009] A vertical pipe, extending along the height direction, an inlet is opened in the middle of the vertical pipe, and the inlet is connected to the water source through a main water inlet pipe;

[0010] A first horizontal pipe, communicating with the upper part of the vertical pipe to form a cross-through structure;

[0011] A second horizontal pipe, located below the first horizontal pipe, the second horizontal pipe communicates with the lower part of the vertical pipe to form a cross-through structure;

[0012] Two groups of water distribution pipes, respectively communicating with the first horizontal pipe and the second horizontal pipe.

[0013] In combination with the first aspect, the water distribution pipe group includes:

[0014] The first water distribution pipe is arranged on one side of the first horizontal pipe and the second horizontal pipe and is communicated with the first horizontal pipe and the second horizontal pipe;

[0015] The second water distribution pipe is arranged on the other side of the first horizontal pipe and the second horizontal pipe and is communicated with the first horizontal pipe and the second horizontal pipe;

[0016] The inner diameter of the port of the first water distribution pipe is smaller than that of the port of the second water distribution pipe, and the length of the first water distribution pipe is greater than that of the second water distribution pipe.

[0017] Combined with the first aspect, the extending direction of the first horizontal pipe and the extending direction of the second horizontal pipe form a set angle.

[0018] Combined with the first aspect, the first water distribution pipe communicated with the second horizontal pipe is arranged to incline upwards, and the second water distribution pipe communicated with the second horizontal pipe is arranged to incline downwards.

[0019] Combined with the first aspect, a vertical plate, a support plate and a water outlet bottom groove are arranged on the side of the rear partition far away from the front partition, and a water outlet gap is formed by surrounding the support plate and the water outlet bottom groove; the vertical plate is perpendicular to the plane where the support plate and the water outlet bottom groove are located.

[0020] Combined with the first aspect, the drainage system includes:

[0021] A drainage main body is arranged on the side of the wetland main body far away from the water source;

[0022] A transverse sealing clamping groove is arranged at one end of the drainage main body close to the wetland main body;

[0023] Vertical sealing clamping grooves are arranged on both sides of the transverse sealing groove, and the vertical sealing clamping grooves are embedded with the vertical plate and can move along the vertical plate in the height direction;

[0024] An overflow weir is arranged at one end of the drainage main body far away from the wetland main body.

[0025] Combined with the first aspect, along the direction perpendicular to the water flow direction, the length of the drainage main body is less than or equal to the size of the water outlet gap.

[0026] Combined with the first aspect, it further includes: upper filler and lower filler are also filled in the rear partition, and the upper filler and the lower filler are separated by the support plate.

[0027] Combined with the first aspect, there are multiple modular anti-blocking wetland systems, and two adjacent modular anti-blocking wetland systems are connected in series or in parallel.

[0028] The embodiments of the present invention bring the following beneficial effects: The modular anti-blocking wetland system provided by the present application includes: a wetland main body, the upper part of the side of the wetland main body away from the water source is connected to a drainage system; the wetland main body includes a front partition and a rear partition formed by division; the wetland main body is filled with fillers; a multi-directional water distribution device is arranged in the front partition, and the multi-directional water distribution device is used to distribute the incoming water flow in multiple directions; the water outlet end of the multi-directional water distribution device extends to the rear partition and communicates with the rear partition.

[0029] The modular anti-blocking wetland system provided by the present invention realizes the local hydrodynamic force in multiple directions in the wetland system in a clockwise or counterclockwise direction through a multi-directional water distribution device, so that the internal water flow drives the flow of the fillers and fully contacts and collides with the sewage, realizing the rapid growth and shedding of microorganisms, improving the sewage treatment efficiency and anti-blocking ability. At the same time, the upper part of the side of the wetland main body away from the water source is connected to the drainage system, so that the potential energy of the discharged water flow is relatively high, greatly reducing the harsh requirements for the terrain during the combined connection of traditional modular wetland systems, and saving the time and cost of land arrangement.

[0030] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification, or be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification, claims and drawings.

[0031] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 It is a schematic diagram of the modular anti-blocking wetland system provided by the embodiments of the present invention.

[0034] Reference numerals:

[0035] 1 - Wetland main body, 11 - Front partition, 12 - Rear partition, 13 - Vertical plate, 14 - Support plate, 15 - Outlet bottom trough, 2 - Drainage system, 21 - Drainage main body, 22 - Horizontal sealing slot, 23 - Vertical sealing slot, 24 - Overflow weir, 3 - Water inlet pipe, 4 - Three - way pipe, 5 - Plug, 6 - Vertical pipe, 7 - First horizontal pipe, 8 - First water distribution pipe, 9 - Second water distribution pipe, 10 - Second horizontal pipe. Detailed implementation manner

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0037] To facilitate the understanding of this embodiment, the application scenario and design concept of the embodiments of the present application will be briefly introduced below.

[0038] In the existing modular artificial wetland, the water flow direction is single, the contact between the water flow and the filler is insufficient, resulting in low purification efficiency, and it is easy to be blocked after long - term use, leading to inconsistent water volume before and after, and the inability to achieve the hydrodynamic force and required flow regime of the wetland structure with new fillers. Due to factors such as inconsistent terrain, it is difficult to quickly combine multiple modular artificial wetlands.

[0039] Based on this, the embodiments of the present application provide a modular anti - clogging wetland system.

[0040] Embodiment 1

[0041] The present application provides a modular anti - clogging wetland system, as combined with Figure 1 As shown, the system includes: a wetland main body 1 and a multi - directional water distribution device.

[0042] The upper part of the side of the wetland main body 1 away from the water source is connected to the drainage system 2; the wetland main body 1 includes a front partition 11 and a rear partition 12 formed by partitioning; the wetland main body is filled with fillers.

[0043] The multi - directional water distribution device is arranged in the front partition 11, and the multi - directional water distribution device is used to distribute the incoming water flow in multiple directions; the water outlet end of the multi - directional water distribution device extends to the rear partition 12 and communicates with the rear partition.

[0044] In this application, through the multi-directional water distribution device arranged in the front partition 11, water is distributed to the incoming water flow in multiple directions. Compared with the traditional single-direction water distribution method, it can form a multi-directional local water power in the wetland main body 1, so that the water flow in the wetland main body drives the filler to flow and fully contact and collide with the sewage, realizing the rapid growth and shedding of microorganisms, improving the sewage treatment efficiency and reducing the risk of blockage. At the same time, the upper part of the side of the wetland main body far from the water source is connected to the drainage system 2, so that the discharged water flow has a higher potential energy, and when combined with the traditional modular wetland system, it reduces the harsh requirements for the terrain, and can reduce the land arrangement time and cost.

[0045] Combined with the first aspect, the multi-directional water distribution device includes a vertical pipe 6, a first horizontal pipe 7 and a second horizontal pipe 10.

[0046] The vertical pipe 6 extends in the height direction. An inlet is provided in the middle of the vertical pipe 6, and the inlet is connected to the water source through a water inlet pipe 3.

[0047] The first horizontal pipe 7 is connected to the upper part of the vertical pipe 6 to form a cross-through structure.

[0048] The second horizontal pipe 10 is located below the first horizontal pipe 7, and the second horizontal pipe 10 is connected to the lower part of the vertical pipe 6 to form a cross-through structure.

[0049] There are two water distribution pipe groups, which are respectively connected to the first horizontal pipe 7 and the second horizontal pipe 10.

[0050] It can be understood that the vertical pipe 6 is perpendicular to the first horizontal pipe 7 and the second horizontal pipe 10, and is connected to the first horizontal pipe 7 and the second horizontal pipe 10. In this way, the vertically arranged vertical pipe 6 is connected to the first horizontal pipe 7 and the second horizontal pipe 10 which are vertically distributed up and down. The incoming water flow is distributed through the water distribution pipe group after being converted from the height direction to the horizontal direction distributed up and down along the vertical pipe. The water flow direction is converted and the flow velocity increases to form a vortex, so as to form a local clockwise or counterclockwise water power, thereby driving the water flow to fully contact and collide with the filler, realizing the rapid growth and shedding of microorganisms, and improving the sewage treatment efficiency.

[0051] Combined Figure 1 As shown, in this embodiment, plugs 5 are installed at both ends of the first horizontal pipe 7 and the second horizontal pipe 10, so that the water flow cannot flow out from both ends of the first horizontal pipe 7 and the second horizontal pipe 10, and the water flow is guided to the water distribution pipe group for water distribution. During this process, the water flow changes direction multiple times to generate small vortices at the outlet, thereby forming a water flow driving force.

[0052] In this embodiment, the vertical pipe 6 is connected to the water inlet pipe 3 through a tee pipe 4. The first port of the tee pipe 4 is communicated with the water outlet of the water inlet pipe 3. The vertical pipe 6 passes through the second and third ports of the tee pipe 4, and the water inlet on the vertical pipe 6 is communicated with the water outlet of the water inlet pipe 3. It can be understood that in order to ensure the sealing performance, a sealing structure such as a sealing rubber ring should be added during the assembly of the vertical pipe 6, the water inlet pipe 3 and the tee pipe 4.

[0053] Combined with the first aspect, the water distribution pipe group includes: a first water distribution pipe 8 and a second water distribution pipe 9.

[0054] The first water distribution pipe 8 is arranged on one side of the first horizontal pipe 7 and the second horizontal pipe 10 and is communicated with the first horizontal pipe 7 and the second horizontal pipe 10.

[0055] The second water distribution pipe 9 is arranged on the other side of the first horizontal pipe 7 and the second horizontal pipe 10 and is communicated with the first horizontal pipe 7 and the second horizontal pipe 10.

[0056] The inner diameter of the port of the first water distribution pipe 8 is smaller than that of the port of the second water distribution pipe 9, and the length of the first water distribution pipe 8 is greater than that of the second water distribution pipe 9.

[0057] Combined with Figure 1 As shown, the first water distribution pipe 8 and the second water distribution pipe 9 are respectively arranged on both sides of the first horizontal pipe 7. The water flow in the first horizontal pipe 7 is distributed to the front partition through the first water distribution pipe 8 and the second water distribution pipe 9 with different pipe diameters and port inner diameters. Similarly, the water flow in the second horizontal pipe 10 is distributed to the rear partition through the first water distribution pipe 8 and the second water distribution pipe 9 with different pipe diameters and port inner diameters.

[0058] Combined with the first aspect, the extending direction of the first horizontal pipe 7 and the extending direction of the second horizontal pipe 10 form a set angle.

[0059] In this embodiment, the first horizontal pipe 7 and the second horizontal pipe 10 are at different height planes in space, and there is a certain angle between the extending directions of the first horizontal pipe 7 and the second horizontal pipe 10 on the horizontal plane. That is, the first horizontal pipe 7 is not parallel to the second horizontal pipe 10. Then, the water flow directions based on the first horizontal pipe 7 and the second horizontal pipe 10 for water distribution also have a certain angle, so as to realize multi-directional water distribution.

[0060] Among them, if the set angle is 90 degrees, then the extending directions of the vertical pipe 6, the first horizontal pipe 7, and the second horizontal pipe 10 are perpendicular to each other pairwise.

[0061] Combined with the first aspect, the first water distribution pipe 8 communicated with the second horizontal pipe 10 is arranged obliquely upward, and the second water distribution pipe 9 communicated with the second horizontal pipe 10 is arranged obliquely downward.

[0062] In this embodiment, the first water distribution pipe 8 and the second water distribution pipe 9 are respectively at an angle with the second horizontal pipe 10, that is, the water distribution direction is adjusted again on the basis of the two horizontal directions to distribute water from more directions.

[0063] Combined with the first aspect, a vertical plate 13, a support plate 14 and a water outlet bottom groove 15 are arranged on one side of the rear partition 12 away from the front partition 11. The support plate 14 and the water outlet bottom groove 15 enclose a water outlet gap; the vertical plate 13 is perpendicular to the plane where the support plate 14 and the water outlet bottom groove 15 are located.

[0064] The drainage system 2 includes: a drainage main body 21, a horizontal sealing slot 22, a vertical sealing slot 23 and an overflow weir 24.

[0065] The drainage main body 21 is arranged on the side of the wetland main body 1 away from the water source.

[0066] The horizontal sealing slot 22 is arranged at one end of the drainage main body 21 close to the wetland main body 1.

[0067] The vertical sealing slots 23 are arranged on both sides of the horizontal sealing groove 22. The vertical sealing slots 23 are fitted with the vertical plate 13 and can move along the vertical plate 13 in the height direction.

[0068] The overflow weir 24 is arranged at one end of the drainage main body 21 away from the wetland main body 1.

[0069] Combined Figure 1 As shown, the vertical sealing slots 23 are fitted with the vertical plate 13, and the vertical plate 13 provides a supporting force for the drainage main body 21; the horizontal sealing slot 22 is fitted with the water outlet bottom groove 15. After the water flows through the water distribution and flows out and is in full contact with the filler for purification and then flows to the drainage main body 21, it flows out evenly under the action of the overflow weir 24. Among them, the vertical sealing slots 23 can move along the vertical plate 13 in the height direction, driving the horizontal sealing slot 22 to move up and down relative to the water outlet bottom groove 15 to adjust the height of the water outlet side according to requirements, that is, adjust the potential energy of the water outlet.

[0070] Among them, during the up and down movement of the horizontal sealing slot 22 relative to the water outlet bottom groove 15, it should be ensured that there is no water leakage in the seal.

[0071] Combined with the first aspect, along the direction perpendicular to the water flow, the length of the drainage main body 21 is less than or equal to the size of the water outlet gap.

[0072] That is, the length of the water outlet gap should be slightly greater than or equal to the length of the drainage main body 21, so as to facilitate the up and down movement of the drainage main body 21 to adjust the height of the water outlet side. During the movement, the overflow water flows out along the water outlet bottom groove 15 to avoid water leakage during the adjustment process.

[0073] In combination with the first aspect, it further includes a return pipeline (not shown in the figure), which is respectively connected to the front partition and the rear partition, and is used to guide the water flow in the rear partition to flow back to the front partition.

[0074] It can be understood that this return pipeline is used to guide the water flow in the rear partition 12 to flow back to the front partition 11 for secondary purification. In this way, deep purification can be carried out when the purification effect does not meet the standard.

[0075] In combination with the first aspect, there are multiple modular anti-clogging wetland systems, and two adjacent modular anti-clogging wetland systems are connected in series or in parallel.

[0076] It can be understood that the modular anti-clogging wetland system provided in this application guides the vertical pipe 6 in the multi-directional water distribution device of the incoming water flow to the first horizontal pipe 7 above and the second horizontal pipe 10 below. Then, it distributes water to the front partition in multiple directions along the water distribution pipe group. Since the water flow changes its direction multiple times to generate eddy currents, a clockwise or counterclockwise water driving force is generated when flowing out, which further promotes the full contact and collision between the filler and the water flow, is beneficial to improving the sewage purification efficiency, and the purified water flow is evenly discharged through the drainage system 2.

[0077] When assembling multiple modular anti-clogging wetland systems, the parallel or series connection method can be adopted. Since the vertical sealing slot 23 of the drainage system 2 can move up and down relative to the vertical plate 13, the height adjustment of the water outlet side can be realized, reducing the assembly difficulty caused by reasons such as terrain and elevation difference between the front and rear wetland systems. It greatly reduces the harsh requirements for the terrain during the combined connection of traditional modular wetland systems, saves the time and cost of land arrangement, and provides new ideas for promoting the development of modular wetland technology in terms of water distribution and water collection. In addition, based on the foregoing structure, the series and parallel connection of multiple modular anti-clogging wetland systems can achieve water quality compliance under different hydraulic loads and can also obtain a good anti-clogging effect through the coupling of the multi-stage drainage system 2.

[0078] For example, the modular anti-clogging wetland system is used alone or in parallel as a single unit. When operating continuously, the first horizontal pipe 7 and the second horizontal pipe 10 are respectively and evenly connected to the vertical pipe 6 through pipe penetration seals. After the plugs 5 are installed on the first horizontal pipe 7 and the second horizontal pipe 10 respectively, a 90-degree angle is formed between them. At half of the position on one side of the second horizontal pipe 10, a first water distribution pipe 8 for upward-slanting water distribution is provided. At the position near the plug 5 on the other side, a second water distribution pipe 9 for downward-slanting water distribution is provided. The first water distribution pipe 8 is longer in length and different in pipe diameter from the second water distribution pipe 9. At the position near the plug 5 on one side of the first horizontal pipe 7, a first water distribution pipe 8 for horizontal water distribution is provided. At half of the position on the other side, a second water distribution pipe 9 for horizontal water distribution is also provided. The first water distribution pipe 8 is longer in length and different in pipe diameter from the second water distribution pipe 9. The vertical sealing slot 23 of the drainage system 2 is inserted into the vertical plate 13 and moves downward. The horizontal sealing slot 22 can move downward along the outlet bottom groove 15 by 50 mm and remain sealed without water leakage. The overflow weir 24 is provided at the end of the drainage system 2 to achieve the function of evenly discharging the water from the wetland system. At this time, the multi-directional water distribution device distributes and diffuses the water flow in multiple directions, which is more uniform than the traditional single-directional push flow (which is prone to short-circuiting or local water shortage). The multi-directional diffusion method enables the sewage and the packing to be more fully mixed and contacted, improving the efficiency. The inlet uses a pipe network, and the outlet uses a large overflow weir, so the water outlet is smoother and the water level will not rise. It is beneficial for loading new packing, and has the sewage treatment functions and effects of a new structure. At the same time, the elevation of the drainage system can be quickly adjusted according to the terrain.

[0079] Among them, when multiple modular anti-clogging wetland systems are used in series and operating continuously, the plug 5 of the vertical pipe 6 in the rear modular anti-clogging wetland system is detachable. The water inlet is achieved by gravity flow through the overflow weir 24 of the drainage system of the first modular anti-clogging wetland system. The vertical sealing slot 23 of the drainage system 2 of the first modular anti-clogging wetland system is inserted into the vertical plate 13 and moves downward. The horizontal sealing slot 22 can move downward along the outlet bottom groove 15 by no more than 100 mm and remain sealed without water leakage. The overflow weir 24 is provided at the end of the drainage system 2 to achieve the function of evenly discharging the water from the wetland system.

[0080] In addition, when multiple modular anti-clogging wetland system units are used in series and in parallel and operating continuously, among them, the number of modular anti-clogging wetland systems connected in series should not exceed 3. After the ports of the second horizontal pipe 10 and the first horizontal pipe 7 at the bottom of each modular anti-clogging wetland system are respectively sealed with plugs 5, a 45-degree angle is formed between them. The overflow weir 24 of the drainage system 2 is successively no more than 50 mm lower than the previous modular anti-clogging wetland system.

[0081] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems and devices described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0082] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] If the above-mentioned function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0084] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0085] Finally, it should be noted that the above embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A modular anti-clogging wetland system, characterized in that: include: A wetland body, wherein the upper part of the side of the wetland body away from the water source is connected to the drainage system; the wetland body comprises a front partition and a rear partition formed by division; the wetland body is filled with fillers; A multi-directional water distribution device is arranged in the front partition, and is used to distribute the incoming water flow in multiple directions; the water outlet end of the multi-directional water distribution device extends to the rear partition and is connected to the rear partition.

2. The system according to claim 1, characterized in that The multi-directional water distribution device comprises: A vertical pipe, the vertical pipe extending in the height direction, a water inlet is opened in the middle of the vertical pipe, and the water inlet is connected to a water source through a water inlet main pipe; A first horizontal pipe, connected to the upper part of the vertical pipe to form a cross-through structure; A second transverse tube is located below the first transverse tube, and the second transverse tube is connected to the lower part of the vertical tube to form a cross-through structure; There are two water distribution pipe groups, which are connected to the first transverse pipe and the second transverse pipe respectively.

3. The system according to claim 2, characterized in that The water distribution pipe group comprises: a first water distribution pipe, arranged on one side of the first transverse pipe and the second transverse pipe; A second water distribution pipe is provided on the other side of the first transverse pipe and the second transverse pipe; The inner diameter of the port of the first water distribution pipe is smaller than the inner diameter of the port of the second water distribution pipe, and the length of the first water distribution pipe is greater than the length of the second water distribution pipe.

4. The system according to claim 2, characterized in that An extension direction of the first transverse tube and an extension direction of the second transverse tube form a set angle.

5. The system according to claim 3, characterized in that The first water distribution pipe communicated with the second transverse pipe is arranged to be inclined upward, and the second water distribution pipe communicated with the second transverse pipe is arranged to be inclined downward.

6. The system according to claim 1, characterized in that A vertical plate, a support plate and a water outlet trough are arranged on one side of the rear partition away from the front partition. The support plate and the water outlet trough together form a water outlet gap. The vertical plate is perpendicular to the plane where the support plate and the water outlet trough are located.

7. The system according to claim 6, characterized in that The drainage system comprises: A drainage body is arranged on a side of the wetland body away from the water source; A transverse sealing groove is provided at one end of the drainage body close to the wetland body; A vertical sealing groove is provided on both sides of the transverse sealing groove, the vertical sealing groove is embedded in the vertical plate and can move along the vertical plate in the height direction; The overflow weir is arranged at one end of the drainage body away from the wetland body.

8. The system according to claim 7, characterized in that In a direction perpendicular to the water flow, the length of the drainage body is less than or equal to the size of the water outlet gap.

9. The system according to claim 7, characterized in that Also includes: The rear partition is also filled with an upper filler and a lower filler, and the upper filler and the lower filler are separated by a support plate.

10. The system according to claim 1, characterized in that There are multiple modular anti-clogging wetland systems, and two adjacent modular anti-clogging wetland systems are connected in series or in parallel.

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