Anti-blocking constructed wetland cleaning system

Abstract

The utility model provides an anti-clogging artificial wetland cleaning system which comprises a treatment unit and a cleaning unit, the treatment unit is used for treating inflowing sewage, one side of the treatment unit is communicated with a water inlet unit, the other side of the treatment unit is communicated with a water outlet unit, the water inlet unit is used for inflowing sewage into the treatment unit, and the cleaning unit is used for cleaning the sewage. The water outlet unit is used for discharging the treated sewage; the cleaning unit is suitable for cleaning the treatment unit so as to prevent the treatment unit from being blocked. The anti-blocking constructed wetland cleaning system provided by the utility model has the technical effects that the treatment unit can be cleaned, blockage is not easy to occur during sewage treatment, and the sewage treatment efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of constructed wetland technology, and more specifically, it relates to an anti-clogging constructed wetland cleaning system. Background Technology

[0002] Constructed wetland wastewater treatment systems, as a novel ecological restoration technology for wastewater bodies, utilize the synergistic effects of physical, chemical, and biological processes involving fillers (including soil), plants, and microorganisms to purify wastewater. They offer advantages such as low construction costs, ease of operation and maintenance, near-zero power operation, buffering of hydraulic and pollution load impacts, and simple and practical technology, making them a rapidly developing new wastewater treatment technology in recent years.

[0003] Given the numerous advantages of constructed wetlands, they are widely used in my country's ecological and environmental infrastructure construction, and various combinations of wetland technologies, structures, and substrate compositions have been proposed and applied. However, in general, the limitations of constructed wetlands have not been effectively overcome, mainly in the following three aspects.

[0004] First, it has low hydraulic load and occupies a large land area.

[0005] Secondly, the adsorption capacity of the packing material in subsurface flow wetlands gradually becomes saturated, and the pores gradually become clogged. While subsurface flow wetlands offer better treatment results than surface flow wetlands, they are more prone to pore clogging, leading to a gradual decline in their purification function and limiting the further application of subsurface flow wetland technology.

[0006] Therefore, there is an urgent need to develop a technology that can save land resources, ensure that wetland treatment capacity is not significantly reduced under low temperature weather conditions, reduce maintenance costs, and extend the life of substrate filler. This technology has broad application value and significant environmental, economic and social benefits. Utility Model Content

[0007] The purpose of this invention is to provide an anti-clogging constructed wetland cleaning system, which aims to solve the technical problem that constructed wetlands are prone to clogging and have poor operating performance when treating sewage.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an anti-clogging artificial wetland cleaning system, comprising:

[0009] The treatment unit is used to treat the incoming sewage. The treatment unit is connected to an inlet unit on one side and an outlet unit on the other side. The inlet unit is used to allow sewage to flow into the treatment unit, and the outlet unit is used to discharge the treated sewage.

[0010] A cleaning unit is provided to clean the processing unit in order to prevent the processing unit from becoming clogged.

[0011] In one possible implementation, the processing unit includes:

[0012] An impermeable layer is installed at the bottom of the pool.

[0013] A lightweight granular packing bed, located at the upper end of the seepage-proof layer, includes lightweight granular packing of a certain thickness. The density of the lightweight granular packing is less than 1000 kg / m³. During the cleaning process, the lightweight granular packing bed is in a suspended fluidized state.

[0014] The upper box is composed of multiple and evenly arranged upper boxes. The upper box is filled with box packing material and wetland plants are planted inside the upper box. The density of the box packing material is greater than 1000 kg / m³. The multiple upper boxes are used to restrict the floating of the lightweight granular packing bed. The multiple upper boxes and the multiple box packing materials form multiple modular units.

[0015] The box packing material can be removed from and inserted into the upper box, and the lightweight granular packing material, the box packing material, and the wetland plants are all used for wastewater treatment.

[0016] In one possible implementation, the upper housing includes:

[0017] A wire mesh box with an open top is provided. The box is filled with filler material. Wetland plants are buried or planted inside the wire mesh box and grow upwards from the top of the wire mesh box. The wire mesh box has multiple evenly distributed mesh holes with a diameter smaller than the particle size of the filler material.

[0018] A handle is attached to the upper end of the wire mesh box.

[0019] In one possible implementation, the lightweight particulate filler is ceramsite or composite ceramsite with a particle size of 20-25 mm; the box filler has a particle size of 10-20 mm.

[0020] In one possible implementation, the cleaning unit includes:

[0021] A clean water pipe, one end of which is connected to the inside of the pool, is used to fill the pool with clean water;

[0022] A mobile aeration device includes a perforated aeration pipe located at the bottom of the inner side of the treatment unit. After the lightweight granular packing bed floats to the surface, the perforated aeration pipe is inserted under the lightweight granular packing bed. The mobile aeration device is adapted to drive the perforated aeration pipe to move along the length of the tank and to deliver gas into the perforated aeration pipe. The gas output from the perforated aeration pipe is used to agitate the water and to blow off and clean the sediments adhering to the lightweight granular packing.

[0023] A drain pipe, one end of which is connected to the inside of the pool, is used to drain the water inside the pool after it has been cleaned.

[0024] When the lightweight granular packing material of the processing unit becomes clogged, it is removed from the upper tank, and clean water is injected into the tank through the clean water pipe. When the clean water level reaches the bottom of the original position of the upper tank, the lightweight granular packing material bed is in a suspended fluidized state under the buoyancy of the water.

[0025] In one possible implementation, the mobile aeration device includes:

[0026] A mobile aerator, installed on the ground, has an aeration end for aeration, and the mobile aerator has a degree of freedom of movement along the length of the pool.

[0027] A connecting rod is fixedly connected at one end to the mobile aerator and at the other end to the perforated aeration pipe. The connecting rod is used to drive the perforated aeration pipe to move.

[0028] An aeration connection hose is connected at one end to the aeration end of the mobile aerator and at the other end to the perforated aeration pipe. The aeration connection hose is used to deliver gas into the perforated aeration pipe.

[0029] In one possible implementation, the mobile aerator includes:

[0030] A mobile trolley is placed on the ground and has the freedom to move in any direction. One end of the connecting rod is fixedly connected to the mobile trolley, and the connecting rod moves when the mobile trolley moves.

[0031] An aerator, connected to the upper end of the mobile cart, has an aeration end for aeration;

[0032] The electrical control unit is electrically connected to the mobile cart and the aerator, and has a control module that controls the operation of the mobile cart and the aerator respectively.

[0033] The beneficial effects of the anti-clogging constructed wetland cleaning system provided by this utility model are as follows: Compared with the prior art, the anti-clogging constructed wetland cleaning system of this utility model includes a treatment unit and a cleaning unit. The treatment unit is used to treat the incoming sewage. The treatment unit is connected to an inlet unit on one side and an outlet unit on the other side. The inlet unit is used to allow sewage to flow into the treatment unit, and the outlet unit is used to discharge the treated sewage. The cleaning unit is suitable for cleaning the treatment unit to prevent the treatment unit from clogging. This solves the technical problem of easy clogging and poor operation when treating sewage. It has the technical effects of being able to clean the treatment unit, not being easy to clog when treating sewage, and having high sewage treatment efficiency. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of an anti-clogging artificial wetland cleaning system provided in this embodiment of the present invention;

[0036] Figure 2 A top view of an anti-clogging artificial wetland cleaning system provided in an embodiment of this utility model;

[0037] Figure 3 A front view of an anti-clogging artificial wetland cleaning system provided in an embodiment of this utility model;

[0038] Figure 4 A front view of the processing unit structure of an anti-clogging artificial wetland cleaning system provided in an embodiment of this utility model;

[0039] Figure 5 A schematic diagram of the upper housing structure of a clogging-resistant artificial wetland cleaning system provided in this embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the exploded structure of the upper casing of the processing unit of an anti-clogging artificial wetland cleaning system provided in an embodiment of the present invention.

[0041] Figure 7 A schematic diagram of the cleaning unit structure of an anti-clogging artificial wetland cleaning system provided in this embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the cleaning unit structure of an anti-clogging artificial wetland cleaning system provided in another embodiment of the present invention.

[0043] In the diagram: 1. Water inlet unit; 11. Water inlet channel; 12. Water distribution trough; 13. Water distribution pipe; 14. Scale;

[0044] 2. Treatment unit; 21. Impermeable layer; 22. Lightweight granular packing bed; 23. Upper box; 231. Box packing; 232. Wetland plants; 233. Wire mesh box; 234. Handle; 235. Mesh;

[0045] 3. Water outlet unit; 31. Water outlet channel; 32. Perforated water collection pipe;

[0046] 4. Cleaning unit; 41. Clean water pipe; 42. Mobile aeration device; 421. Perforated aeration pipe; 422. Mobile aerator; 4221. Mobile cart; 4222. Aerator; 423. Connecting rod; 424. Aeration connecting hose; 43. Drain pipe; 44. Remote control. Detailed Implementation

[0047] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0048] Please refer to the following: Figures 1 to 8 This invention provides a clog-resistant constructed wetland cleaning system. The system includes a treatment unit 2 and a cleaning unit 4. The treatment unit 2 treats incoming wastewater. One side of the treatment unit 2 is connected to an inlet unit 1, and the other side is connected to an outlet unit 3. The inlet unit 1 allows wastewater to flow into the treatment unit 2, and the outlet unit 3 discharges the treated wastewater. The cleaning unit 4 is adapted to clean the treatment unit 2 to prevent clogging.

[0049] This utility model provides an anti-clogging constructed wetland cleaning system. Compared with the prior art, this anti-clogging constructed wetland cleaning system can evenly distribute sewage to the treatment unit by setting an inlet unit 1, discharge treated sewage by setting an outlet unit 3, and clean the treatment unit by setting a cleaning unit 4. It can effectively prevent clogging and solve the technical problems of easy clogging and poor operation when treating sewage. It has the technical effects of automatically cleaning the treatment unit, not being easy to clog when treating sewage, and high sewage treatment efficiency.

[0050] In this embodiment, both the water inlet unit 1 and the water outlet unit 3 are connected to the processing unit, such as... Figure 1 As shown, the inlet unit 1 and outlet unit 3 are located at both ends or sides of the treatment unit 2, respectively, and adopt existing technologies. After the treatment unit 2 has been running for a period of time, the cleaning unit 4 can automatically clean the treatment unit, which can improve the wastewater treatment efficiency.

[0051] The water inlet unit 1 mainly includes an inlet channel 11, a distribution tank 12, and a distribution pipe 13 connected in sequence. Wastewater in the inlet channel 11 flows into the distribution tank 12. The upper end of the distribution pipe 13 connects to the bottom of the distribution tank 12, and multiple holes are evenly distributed along its axial direction, allowing water to flow out through these holes and towards the treatment unit. The distribution pipe 13 is located inside the treatment unit, thus enabling uniform water distribution to the treatment unit 2. A scale 14 is installed on the side of the inlet channel 11 to display the water level inside the channel.

[0052] The water outlet unit 3 mainly includes a water outlet channel 31 and a perforated water collection pipe 32 that connects to the water outlet channel 31. The upper end of the perforated water collection pipe 32 is connected to the water outlet channel 31 through a pipe. The perforated water collection pipe 32 is horizontally arranged and has multiple holes evenly distributed along its axial direction. The treated sewage can flow into the holes, then reach the interior of the perforated water collection pipe 32, and finally flow into the interior of the water outlet channel 31.

[0053] In some embodiments, please refer to Figures 1-8 The treatment unit 2 includes a seepage-proof layer 21, a lightweight granular packing bed 22, and an upper chamber 23. The seepage-proof layer 21 is located at the bottom of the tank. The lightweight granular packing bed 22 is located above the seepage-proof layer 21 and includes lightweight granular packing of a certain thickness with a density of less than 1000 kg / m³. During the cleaning process, the lightweight granular packing bed 22 is in a suspended fluidized state. Multiple upper chambers 23 are evenly arranged, and each upper chamber 23 is filled with chamber packing 231. The tank is planted with wetland plants 232. The density of the box-type packing material 231 is greater than 1000 kg / m³. Multiple upper boxes 23 are used to restrict the floating of the lightweight granular packing bed 22. The multiple upper boxes 23 and multiple box-type packing materials 231 form multiple modular units. The box-type packing material 231 can be taken out from inside the upper box 23 and inserted into the upper box 23, realizing modular rapid assembly. The lightweight granular packing material, box-type packing material 231, and wetland plants 232 are all used for wastewater treatment. The impermeable layer 21 can prevent water from seeping into the lower part of the tank or into the soil. This impermeable layer 21 is a prior art technology and is coated on the bottom wall of the tank. The tank has a pit-like structure in the prior art. Multiple lightweight granular packing materials are combined to form a lightweight granular packing bed 22, which is distributed on the upper part of the impermeable layer 21. Multiple upper chambers 23 are arranged in contact with each other, that is, two adjacent upper chambers 23 are in contact with each other, located at the upper end of the lightweight particle packing bed 22, which plays a role in pressing down the lightweight particle packing bed 22.

[0054] In some embodiments, please refer to Figures 1-8The upper box 23 includes a wire mesh box 233 and handles 234. The upper end of the wire mesh box 233 is open. The box filler 231 is filled inside the wire mesh box 233. Wetland plants 232 are buried or planted inside the wire mesh box 233 at the bottom and extend upwards from the top of the wire mesh box 233. The wire mesh box 233 has a plurality of evenly distributed mesh holes 235. The diameter of the mesh holes 235 is smaller than the diameter or particle size of the box filler 231, so that the box filler 231 will not leak out from the mesh holes 235. The handles 234 are connected to the outside of the wire mesh box 233. The wire mesh box 233 is a wire mesh box made of lead wire. The mesh box has mesh holes 235 and is square in shape when viewed from above. There are four handles 234, which are all located at the upper ends of the four ends of the wire mesh box 233 for workers to hold and pull the wire mesh box 233 to move it. The box packing 231 is an integral structure formed by the combination of multiple packings filled inside the wire mesh box 233. The particle size of the box packing 231 refers to the diameter of a single packing.

[0055] As a preferred embodiment, the length, width, and height of the wire mesh box 233 are 0.3m, 1m, and 1m, respectively.

[0056] In some embodiments, please refer to Figures 1-8 The lightweight granular filler is made of ceramsite or composite ceramsite with a particle size of 20-25 mm; the box filler 231 has a particle size of 10-20 mm. The lightweight granular filler is in a suspended fluidized state during the cleaning process. During operation, the lightweight granular filler is in a compacted state, purifying the water through the physicochemical action of the granular filler itself, the presence of numerous microorganisms attached to it, and the action of plants. During cleaning, the lightweight granular filler is in a suspended fluidized state, facilitating the removal of impurities and old biofilm from the gaps in the filler, which are then discharged outside the treatment unit 2. The box filler 231 can be made of gravel, which has a density greater than that of water, while the lightweight granular filler has a density less than that of water. The box filler 231 acts as an anti-buoyancy barrier for the lightweight granular filler, preventing its loss, while the upper box 23 provides an attachment substrate for plant growth. In this embodiment, a certain thickness of lightweight granular filler refers to an integral structure formed by combining multiple lightweight granular fillers (i.e., ceramsite or composite ceramsite), which has a certain thickness.

[0057] In winter, the wetland plants 232 growing on the upper chamber 23 can be harvested and laid flat to cover the top of the upper chamber 23. As a slow-release plant carbon source, it increases the C / N ratio of the treated water in winter, promotes ammonification and denitrification, and the covering plants can also play a role in heat preservation.

[0058] In some embodiments, please refer to Figures 1-8The cleaning unit 4 includes a clean water pipe 41, a mobile aeration device 42, and an vent pipe 43. One end of the clean water pipe 41 is connected to the inside of the tank and is used to fill the tank with clean water. The mobile aeration device 42 includes a perforated aeration pipe 421 located at the bottom of the inner side of the treatment unit 2. After the lightweight granular packing bed 22 floats up, the perforated aeration pipe 421 passes under the lightweight granular packing bed 22. The mobile aeration device 42 is adapted to drive the perforated aeration pipe 421 to move along the length of the tank and to deliver air into the perforated aeration pipe 421. The gas output from the perforated aeration pipe 421 is used to agitate the water and blow off and clean the sediment adhering to the lightweight granular packing. One end of the vent pipe 43 connects to the inside of the tank to discharge the cleaned water. When the lightweight granular packing in treatment unit 2 becomes clogged, the upper tank 23 is moved away, and clean water is introduced into the tank through the clean water pipe 41. When the clean water level reaches the bottom of the original position of the upper tank 23, the lightweight granular packing bed 22 is in a suspended fluidized state under the buoyancy of the water. The reciprocating movement of the mobile aeration device 42 blows off the sediment on the lightweight granular packing, thus preventing sediment from clogging it. After cleaning, the vent pipe 43 can be opened to discharge the wastewater. The perforated aeration pipe 421 is an aeration pipe with multiple holes evenly distributed along its axial direction to achieve aeration. This invention restores the normal operating capacity of treatment unit 2 after cleaning.

[0059] When a blockage occurs, the upper chamber 23 is moved away by holding the handle, leaving the lightweight granular packing bed 22. The lightweight granular packing bed 22 will then float and move, allowing clean water to be introduced into the treatment unit 2 through the clean water pipe 41. The clean water causes the packing material of the lightweight granular packing bed 22 to be in a suspended fluidized state. The mobile aeration device 42 is used to stir the water and blow off the sediment attached to the lightweight granular packing. Finally, the wastewater is discharged through the vent pipe 43, thus cleaning the lightweight granular packing.

[0060] The mobile aeration device 42 allows for periodic cleaning, achieving anti-clogging operation of the treatment unit 2 and solving technical problems such as easy clogging and high maintenance difficulty in common existing technologies. After cleaning, the perforated aeration pipe 421 is removed, and the cleaning wastewater is discharged through the vent pipe 43.

[0061] In some embodiments, please refer to Figures 1-8The mobile aeration device 42 includes a mobile aerator 422, a connecting rod 423, and an aeration connecting hose 424. The mobile aerator 422 is located on the ground and has an aeration end for aeration. The mobile aerator 422 has the freedom to move along the length of the tank. One end of the connecting rod 423 is fixedly connected to the mobile aerator 422, and the other end is fixedly connected to the perforated aeration pipe 421. The connecting rod 423 is used to drive the perforated aeration pipe 421 to move. One end of the aeration connecting hose 424 is connected to the aeration end of the mobile aerator 422, and the other end is connected to the perforated aeration pipe 421. The aeration connecting hose 424 is used to deliver gas into the perforated aeration pipe 421. The mobile aerator 422 can reciprocate, thereby driving the connecting rod 423 to move together. The connecting rod 423 can move together with the perforated aeration pipe 421, allowing the perforated aeration pipe 421 to reciprocate below the lightweight granular packing bed 22, thus cleaning the lightweight granular packing. The aeration connecting hose 424 can deform but will not bend, meaning it will not affect the delivery of gas into the perforated aeration pipe 421.

[0062] Preferably, the connecting rod 423 is a telescopic rod whose length can be adjusted. It is vertically arranged, with the upper end connected to the mobile aerator 422 and the lower end connected to the perforated aeration pipe 421. By adjusting its length, the vertical distance between the mobile aerator 422 and the perforated aeration pipe 421 can be adjusted, thereby allowing the perforated aeration pipe 421 to be placed at different heights, thus meeting the needs of aeration and cleaning operations at different depths or positions.

[0063] In some embodiments, please refer to Figures 1-8The mobile aerator 422 includes a mobile cart 4221, an aerator 4222, and an electrical control unit. The mobile cart 4221 is mounted on the ground and has the freedom to move in any direction. One end of a connecting rod 423 is fixedly connected to the mobile cart 4221, and the mobile cart 4221 moves, causing the connecting rod 423 to move as it moves. The aerator 4222 is connected to the upper end of the mobile cart 4221 and has an aeration end for aeration. The electrical control unit is electrically connected to both the mobile cart 4221 and the aerator 4222, and has control modules for controlling the operation of both. The mobile cart 4221 can move back and forth in any direction. By controlling the movement path of the mobile cart 4221, the movement path of the perforated aeration pipe 421 can be controlled, thus achieving the function of cleaning the lightweight granular packing. The mobile cart 4221 can be moved manually or by installing a driver at its bottom to drive its movement. In this embodiment, multiple actuators installed at the bottom of the mobile cart 4221 are controlled by an electronic control unit, which in turn drives the mobile cart 4221 to move. The direction of movement can be manually adjusted, thereby controlling the automatic movement of the perforated aeration pipe 421. The aerator 4222 is a prior art product capable of generating aeration, and its operation is controlled by the electronic control unit. The electronic control unit in this embodiment is prior art and includes a control panel, a PLC controller, control circuitry, and a wireless communication unit, etc., which can be controlled by the operator.

[0064] Specifically, during the treatment process, the lightweight granular packing material is in a compacted state, purifying the water through the physicochemical action of the packing material itself, the large number of microorganisms attached to it, and the action of plants. During the cleaning process, the lightweight granular packing material is in a suspended fluidized state, facilitating the removal of impurities and old biofilm from the gaps in the packing material, which are then discharged outside the treatment unit 2. The wireless communication unit of the electrical control department is wirelessly connected to a remote control 44, which has control buttons for moving the mobile cart 4221 and operating the aerator 4222. By operating these control buttons, remote automatic control of aeration and cleaning operations can be achieved.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant constructed wetland cleaning system, characterized in that, The application relates to a sewage treatment device, comprising: a treatment unit for treating inflowing sewage, one side of the treatment unit being connected with a water inlet unit for flowing sewage into the treatment unit, and the other side being connected with a water outlet unit for discharging treated sewage; a cleaning unit for cleaning the treatment unit to prevent the treatment unit from being blocked.

2. A clog-resistant constructed wetland cleaning system as claimed in claim 1, wherein, The treatment unit comprises: an anti-seepage layer arranged at the bottom of a pool body; a light particle filler bed arranged at the upper end of the anti-seepage layer, the light particle filler bed comprising light particle fillers with a certain thickness, and the light particle filler bed being in a suspended and fluidized state during the cleaning process; a plurality of upper boxes which are uniformly arranged and filled with box fillers, and wetland plants being planted in the upper boxes, the density of the box fillers being greater than 1000 kg / m3, the plurality of upper boxes being used for limiting the light particle filler bed from floating, and the plurality of upper boxes and the plurality of box fillers forming a plurality of modular units; wherein the box fillers can be taken out of and filled into the upper boxes, and the light particle fillers, the box fillers and the wetland plants are used for treating sewage.

3. A clog-resistant constructed wetland cleaning system as claimed in claim 2, wherein, The density of the light particle fillers is less than 1000 kg / m3, and the density of the box fillers is greater than 1000 kg / m3.

4. A clog-resistant constructed wetland cleaning system as claimed in claim 2, wherein, The upper box comprises: a lead wire mesh box with an open upper end, the box fillers being filled in the lead wire mesh box, and the lower parts of the wetland plants being buried or planted in the lead wire mesh box and the upper parts of the wetland plants extending and growing above the lead wire mesh box, the lead wire mesh box being provided with a plurality of uniformly arranged mesh holes, and the diameters of the mesh holes being less than the particle diameters of the box fillers.

5. A clog-resistant constructed wetland cleaning system as claimed in claim 4, wherein, The upper box further comprises: a handle connected to the upper end of the lead wire mesh box.

6. A clog-resistant constructed wetland cleaning system as claimed in claim 2, wherein, The light particle fillers are ceramic particles or composite ceramic particles with a particle diameter of 20-25 mm.

7. A clog-resistant constructed wetland cleaning system as claimed in claim 2, wherein, The cleaning unit comprises: a clean water pipe connected to one end of the pool body and used for filling clean water into the pool body; a movable aeration device comprising a perforated aeration pipe arranged at the bottom of the treatment unit, the perforated aeration pipe penetrating into the lower part of the light particle filler bed after the light particle filler bed floats, the movable aeration device being suitable for moving the perforated aeration pipe along the length direction of the pool body and conveying gas into the perforated aeration pipe, the gas output from the perforated aeration pipe being used for stirring water and stripping and cleaning the sediments adhered to the light particle fillers; a vent pipe connected to one end of the pool body and used for discharging water in the pool body after cleaning; wherein when the light particle fillers of the treatment unit are blocked, the upper boxes are removed, clean water is filled into the pool body by using the clean water pipe, and when the height of the clean water reaches the height of the original position of the upper boxes, the light particle filler bed is in a suspended and fluidized state under the water buoyancy.

8. A clog-resistant constructed wetland cleaning system as claimed in claim 7, wherein, The movable aeration device comprises: a movable aerator arranged on the ground and provided with an aeration end for aeration, the movable aerator having a moving degree along the length direction of the pool body. A connecting rod, one end of which is fixedly connected to the mobile aerator, and the other end of which is fixedly connected to the perforated aeration pipe, the connecting rod being used to drive the perforated aeration pipe to move; An aeration connecting hose, one end of which is communicated with the aeration end of the mobile aerator, and the other end of which is communicated with the perforated aeration pipe, the aeration connecting hose being used to deliver gas to the inside of the perforated aeration pipe.

9. A clog-resistant constructed wetland cleaning system as claimed in claim 8, wherein, The mobile aerator comprises: A mobile trolley, which is arranged on the ground and has the freedom to move in any direction, one end of the connecting rod being fixedly connected to the mobile trolley, the mobile trolley driving the connecting rod to move when the mobile trolley moves; An aerator, which is connected to the upper end of the mobile trolley and has an aeration end for aeration.

10. A clog-resistant constructed wetland cleaning system as claimed in claim 9, wherein, The mobile aerator further comprises: An electric control unit, which is electrically connected to the mobile trolley and the aerator respectively, and has control modules for controlling the operation of the mobile trolley and the aerator respectively.

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