An anti-clogging artificial wetland system

Abstract

The present invention discloses an anti-clogging artificial wetland system, including a wetland main filling area, a lateral anti-clogging system is arranged at the upper end, and a reinforced anti-clogging system is arranged at the outer side of the bottom; the reinforced anti-clogging system is connected with the wetland main filling area through the bottom water outlet, a vertical anti-clogging system is arranged at the upper end of the reinforced anti-clogging system, the reinforced anti-clogging system includes a perforated inclined plate and a reinforced filter membrane covered on the perforated inclined plate, and an emptying pipe is arranged on the side of the reinforced anti-clogging system corresponding to the anti-clogging artificial wetland system; a modular detachable area is arranged above the vertical anti-clogging system and the lateral anti-clogging system; the vertical anti-clogging system and the lateral anti-clogging system are both arranged with anti-clogging fillers that can be suspended in water. The present invention is suitable for non-point source pollution control such as river and lake ecological restoration and management, drinking water source protection, domestic sewage management and improvement, and fishery aquaculture wastewater circulation.

Description

Technical Field

[0001] The present invention relates to the field of artificial wetlands, and in particular to an anti-clogging artificial wetland system, which is suitable for surface source pollution control such as river and lake ecological restoration and management, drinking water source protection, domestic sewage treatment and improvement, and fishery aquaculture wastewater circulation. Background Art

[0002] At present, there is a huge demand for water ecological restoration technology, especially artificial wetland technology, which is one of the ecological restoration technologies and has a broad prospect. However, artificial wetlands have problems such as poor winter effect, large area and easy clogging, which seriously restrict the development of artificial wetland technology.

[0003] Based on the above problems, the field of artificial wetlands has received more and more attention, and more and more innovations and attempts have been used to solve the blockage problem. On the one hand, the focus of the research is to understand the mechanism of wetland blockage, and try to use advanced technical means to predict the location of wetland blockage, detect blockage at an early stage and replace the filler at the blocked location to solve the problem; on the other hand, more research tends to be applied, that is, how to effectively solve wetland blockage, and modular wetland technology has emerged, but there is also the problem of replacing fillers after blockage, which has generated a lot of manpower, material and financial resources. Therefore, how to carry out anti-blockage innovation in artificial wetland technology and processes is a more urgent technical demand, which will help to quickly solve the "bottleneck" problem in this industry and promote technological progress. The patent texts with publication numbers CN111977808A and CN112142209A both disclose technical solutions for achieving anti-blockage using lightweight suspended fillers as anti-blockage fillers. Summary of the invention

[0004] In view of the problem of easy clogging in existing artificial wetland technology, the patent of this invention provides an anti-clogging artificial wetland system based on multiple technologies.

[0005] A clogging-resistant artificial wetland system comprises a wetland main filling area, a lateral anti-clogging system is arranged at the upper end thereof, and a reinforced anti-clogging system is arranged at the outer side of the bottom; the reinforced anti-clogging system is connected with the wetland main filling area through a bottom water outlet, a vertical anti-clogging system is arranged at the upper end of the reinforced anti-clogging system, the reinforced anti-clogging system comprises a perforated inclined plate and a reinforced filter membrane covered on the perforated inclined plate, and a drain pipe is arranged on the side of the anti-clogging artificial wetland system corresponding to the reinforced anti-clogging system; a modular detachable area is arranged above the vertical anti-clogging system and the lateral anti-clogging system; the interiors of the vertical anti-clogging system and the lateral anti-clogging system are both arranged with anti-clogging fillers that can be suspended in water.

[0006] The material of the anti-clogging filler can be a material that can be suspended in water in the prior art, preferably a light suspendable ceramsite.

[0007] A water inlet and a water outlet are respectively arranged on both sides of the anti-clogging artificial wetland system, the water inlet is located between the modular detachable area and the vertical anti-clogging system, and the water outlet is located between the modular detachable area and the lateral anti-clogging system or on the side of the lateral anti-clogging system; an overflow is arranged between the modular detachable area and the vertical anti-clogging system, close to the lateral anti-clogging system, the bottom end of the water inlet is not lower than the bottom end of the overflow, and the bottom end of the overflow is higher than the bottom end of the water outlet.

[0008] The water inlet is lower than the modular detachable area and higher than the vertical anti-blocking system. Preferably, the bottom of the water inlet is 50 to 100 mm higher than the bottom of the water outlet, and the water inlet and outlet are independently installed with a combination of one or more of a butterfly valve, a ball valve, a solenoid valve, etc.

[0009] Preferably, the overflow port width is consistent with the width of the anti-clogging artificial wetland system, and is composed of one or more materials such as nylon, wire mesh, etc., whose pore size is smaller than the particle size of the anti-clogging filler.

[0010] The transverse anti-clogging system includes an anti-clogging filler and its shell. Preferably, the transverse anti-clogging system is filled with an anti-clogging filler with a particle size of 10 to 20 mm, and is surrounded by a mesh structure composed of hard or soft mesh materials, the material of which is one or a combination of nylon, wire mesh, non-woven fabric, etc., the pore size of which is smaller than the particle size of the anti-clogging filler, and the anti-clogging filler filling volume ratio inside is between 60% and 90%.

[0011] The vertical anti-clogging system includes an anti-clogging filler and its shell. The bottom end of the vertical anti-clogging system is connected to the top end of the enhanced anti-clogging system. When there is no water, the anti-clogging filler in the vertical anti-clogging system accumulates on the enhanced filter membrane of the enhanced anti-clogging system. The pore size of the enhanced filter membrane is smaller than the pore size of the anti-clogging filler in the vertical anti-clogging system. When there is water, the anti-clogging filler in the vertical anti-clogging system will be suspended under the buoyancy of the water. Preferably, the vertical anti-clogging system is filled with anti-clogging fillers with a particle size of 10 to 25 mm, and the anti-clogging filler filling volume ratio is between 30% and 90%.

[0012] The wetland main filling material is arranged in the wetland main filling material area. Preferably, the wetland main filling material in the wetland main filling material area is one or a combination of ceramsite, anthracite, steel slag, zeolite, crushed stone, etc., and its particle size is between 20 and 50 mm.

[0013] The bottom water outlet is a mesh structure composed of one or more materials such as nylon and wire mesh, whose pore size is smaller than the particle size of the wetland main filler, and its width and height are preferably consistent with the enhanced anti-clogging system.

[0014] Preferably, the modular removable area comprises a base and an enhanced treatment system, a first ventilation duct and a second ventilation duct disposed in the base;

[0015] The bottom of the modular detachable area is in a grid shape, and its material is one or a combination of nylon, non-woven fabric, iron wire, etc., and its pore size is smaller than the particle size of the substrate, and is used to support the substrate;

[0016] The substrate is one or a combination of gravel, crushed stone, zeolite, ceramsite, anthracite, steel slag, etc., with a particle size of 10 to 30 mm, and a thickness of 200 mm;

[0017] The enhanced treatment system is a combination of one or more modular wetlands, floating islands, etc., which are equipped with the same material and particle size specifications as the substrate, and its size may not be fixed and can be determined according to the actual space conditions; aquatic plants are planted on the enhanced treatment system, and the aquatic plants are emergent plants, specifically one or more combinations of canna, calamus, iris, loosestrife, and lily, etc., with a planting density of 6-30 plants / square meter; the roots of the aquatic plants are located on the horizontal anti-clogging system and the vertical anti-clogging system or are interspersed in the horizontal anti-clogging system and the vertical anti-clogging system;

[0018] The first ventilation pipe and the second ventilation pipe are separated by the enhanced treatment system and are respectively buried in different depths of the transverse anti-blocking system. The lower end of the second ventilation pipe is located at the bottom of the transverse anti-blocking system, and the lower end of the first ventilation pipe is located at the upper part of the transverse anti-blocking system. The upper ends of the first ventilation pipe and the second ventilation pipe are flush with the plane ring beam of the enhanced treatment system. In the present invention, the first ventilation pipe is referred to as a type I ventilation pipe, which can be short and thick, and the second ventilation pipe is referred to as a type II ventilation pipe, which can be long and slender.

[0019] Preferably, the angle between the perforated inclined plate and the horizontal plane is less than 45 degrees, and the mesh number of the perforated inclined plate is 10-45 meshes; the mesh number of the enhanced filtration membrane is 45-120 meshes, and the material is nylon, non-woven fabric, etc., or a combination of several of them.

[0020] Preferably, the drain pipe is opened and closed by a combination of one or more butterfly valves, ball valves, solenoid valves, etc. installed thereon; a filter screen is installed on the inside of the drain pipe, and the filter screen is made of one or more combinations of nylon, wire mesh, etc., and the pore size is smaller than the particle size of the anti-clogging filler loaded in the vertical anti-clogging system.

[0021] Compared with the prior art, the present invention has the following main advantages:

[0022] 1. After the influent enters the vertical anti-clogging system, the anti-clogging fillers in the vertical anti-clogging system are suspended and collide with each other under the buoyancy of the water, and the biofilms on them continue to grow and fall off, which can make the substances that are easy to cause clogging (such as suspended solids SS, etc.) intercepted from the influent settle and fall, and further intercepted by the perforated inclined plate and the enhanced filter membrane, and finally discharged through the drain pipe, so as to avoid the replacement of the anti-clogging fillers in the vertical anti-clogging system while preventing clogging. In addition, the SS and the detached biofilms that settle from the vertical anti-clogging system enter the enhanced anti-clogging system, and the stored water is emptied through the drain pipe regularly (such as stopping the water inlet for a short time after one year and then running normally) or irregularly, so that the anti-clogging fillers in the vertical anti-clogging system also settle on the enhanced filter membrane, and the biofilms on it are destroyed by shear force to achieve "self-cleaning" on the surface to avoid the risk of membrane clogging; at the same time, the water filtered by the enhanced filter membrane is evenly distributed to the main filler area of ​​the wetland through the perforated inclined plate, achieving further anti-clogging and reducing the concentration of pollutants entering the back-end system.

[0023] 2. When the water volume is too large, more water flows into the horizontal anti-clogging system through the upper overflow port. Similar to the vertical anti-clogging system, the anti-clogging fillers in the horizontal anti-clogging system are suspended and collide with each other under the buoyancy of water, which can make the substances (such as SS, etc.) and biofilms intercepted from the incoming water that are prone to cause blockage fall and be discharged through the outlet with the water flow. In addition, the roots of aquatic plants will grow downward and even insert into the horizontal anti-clogging system, which can play a role in adsorption, interception, absorption, transfer and transformation of pollutants and biofilms in the incoming water, and work together with the anti-clogging fillers in the horizontal anti-clogging system to prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an anti-clogging artificial wetland system of an embodiment;

[0025] In the figure:

[0026] 1- Water inlet 2- Anti-clogging artificial wetland system 3- Modular removable area

[0027] 4-Base 5-Enhanced treatment system 6-Aquatic plants

[0028] 7- Aquatic plant roots 8- First ventilation pipe 9- Second ventilation pipe

[0029] 10-Horizontal anti-clogging system 11-Anti-clogging filler 12-Vertical anti-clogging system

[0030] 13- Anti-clogging filler 14- Wetland main filler 15- Strengthened anti-clogging system

[0031] 16-perforated inclined plate 17-enhanced filter membrane 18-emptying pipe

[0032] 19-Bottom water outlet 20-Overflow outlet 21-Water outlet. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The operating methods in the following examples without specifying specific conditions are usually carried out under conventional conditions or under conditions recommended by the manufacturer.

[0034] like Figure 1 As shown, the anti-clogging artificial wetland system 2 of this embodiment includes a wetland main filling area 14, a lateral anti-clogging system 10 is arranged at the upper end, and a reinforced anti-clogging system 15 is arranged at the outer side of the bottom; the reinforced anti-clogging system 15 is connected to the wetland main filling area 14 through the bottom water outlet 19, and a vertical anti-clogging system 12 is arranged at the upper end of the reinforced anti-clogging system 15, and the reinforced anti-clogging system 15 includes a perforated inclined plate 16 and a reinforced filter membrane 17 covering the perforated inclined plate 16, and an emptying pipe 18 is arranged on the side of the anti-clogging artificial wetland system 2 corresponding to the reinforced anti-clogging system 15; a modular detachable area 3 is arranged above the vertical anti-clogging system 12 and the lateral anti-clogging system 10; the vertical anti-clogging system 12 and the lateral anti-clogging system 10 are both arranged with anti-clogging fillers 11 and 13 that can be suspended in water. The material of the anti-clogging fillers 11 and 13 is a light ceramsite that can be suspended.

[0035] An inlet 1 and an outlet 21 are respectively arranged on both sides of the anti-clogging artificial wetland system 2, the inlet 1 is located between the modular detachable area 3 and the vertical anti-clogging system 12, and the outlet 21 is located between the modular detachable area 3 and the lateral anti-clogging system 10 or on the side of the lateral anti-clogging system 10; an overflow port 20 is arranged between the modular detachable area 3 and the vertical anti-clogging system 12, close to the lateral anti-clogging system 10, the bottom end of the water inlet 1 is not lower than the bottom end of the overflow port 20, and the bottom end of the overflow port 20 is higher than the bottom end of the water outlet 21.

[0036] The water inlet 1 is lower than the modular detachable area 3 and higher than the vertical anti-clogging system 12. The bottom of the water inlet 1 is 50-100 mm higher than the bottom of the water outlet 21. The water inlet 1 and the water outlet 21 are independently installed with a combination of one or more of a butterfly valve, a ball valve, and a solenoid valve.

[0037] The width of the overflow port 20 is consistent with the width of the anti-clogging artificial wetland system 2, and is composed of one or more materials such as nylon and wire mesh with a pore size smaller than the particle size of the anti-clogging fillers 11 and 13.

[0038] The transverse anti-clogging system 10 includes an anti-clogging filler 11 and its shell. The transverse anti-clogging system 10 is filled with an anti-clogging filler 11 with a particle size of 10 to 20 mm, and is surrounded by a mesh structure composed of hard or soft mesh materials, the material of which is one or a combination of nylon, wire mesh, non-woven fabric, etc., the pore size of which is smaller than the particle size of the anti-clogging filler 11, and the filling volume ratio of the anti-clogging filler 11 inside is between 60% and 90%.

[0039] The vertical anti-clogging system 12 includes an anti-clogging filler 13 and its shell. The bottom end of the vertical anti-clogging system 12 is connected to the top end of the enhanced anti-clogging system 15. When there is no water, the anti-clogging filler 13 in the vertical anti-clogging system 12 accumulates on the enhanced filter membrane 17 of the enhanced anti-clogging system 15. The pore size of the enhanced filter membrane 17 is smaller than the pore size of the anti-clogging filler 13 in the vertical anti-clogging system 12. When there is water, the anti-clogging filler 13 in the vertical anti-clogging system 12 will be suspended under the buoyancy of water. The vertical anti-clogging system 12 is filled with anti-clogging fillers 13 with a particle size of 10 to 25 mm, and the filling volume ratio of the anti-clogging filler 13 is between 30% and 90%.

[0040] The wetland main filling material is arranged in the wetland main filling material area 14. The wetland main filling material in the wetland main filling material area 14 is one or a combination of ceramsite, anthracite, steel slag, zeolite, crushed stone, etc., and its particle size is between 20 and 50 mm;

[0041] The bottom water outlet 19 is a mesh structure composed of one or more materials such as nylon and wire mesh, whose pore size is smaller than the particle size of the main filler of the wetland, and its width and height are consistent with the enhanced anti-clogging system 15.

[0042] The modular detachable area 3 includes a base 4 and an enhanced treatment system 5 , a first ventilation duct 8 and a second ventilation duct 9 arranged in the base 4 .

[0043] The bottom of the modular detachable area 3 is in a grid shape, and its material is one or a combination of nylon, non-woven fabric, iron wire, etc., and its pore size is smaller than the particle size of the substrate 4, and is used to support the substrate 4.

[0044] The substrate 4 is one or a combination of gravel, crushed stone, zeolite, ceramsite, anthracite, steel slag, etc., with a particle size of 10 to 30 mm, and a thickness of 200 mm;

[0045] The enhanced treatment system 5 is a combination of one or more modular wetlands, floating islands, etc., which are equipped with the same material and particle size specifications as the base 4. Its size may not be fixed and can be determined according to the actual space conditions; aquatic plants 6 are planted on the enhanced treatment system 5, and the aquatic plants 6 are emergent plants, specifically one or more combinations of canna, calamus, iris, loosestrife, and lily of the valley, with a planting density of 6-30 plants / square meter; the aquatic plant root system 7 is located on the horizontal anti-clogging system 10 and the vertical anti-clogging system 12 or interspersed in the horizontal anti-clogging system 10 and the vertical anti-clogging system 12.

[0046] The first ventilation pipe 8 is short and thick, and the second ventilation pipe 9 is long and thin. They are separated by the enhanced treatment system 5 and buried in different depths of the transverse anti-clogging system 10. The lower end of the second ventilation pipe 9 is located at the bottom of the transverse anti-clogging system 10, and the lower end of the first ventilation pipe 8 is located at the upper part of the transverse anti-clogging system 10. The upper ends of the first ventilation pipe 8 and the second ventilation pipe 9 are flush with the plane ring beam of the enhanced treatment system 5.

[0047] The angle between the perforated inclined plate 16 and the horizontal plane is less than 45 degrees, and the mesh number of the perforated inclined plate 16 is 10-45 meshes; the mesh number of the enhanced filter membrane 17 is 45-120 meshes, and the material is nylon, non-woven fabric, etc., or a combination of several of them.

[0048] The drain pipe 18 is opened and closed by a combination of one or more butterfly valves, ball valves, solenoid valves, etc. installed thereon; a filter screen is installed inside the drain pipe, which is made of nylon and has a pore size smaller than the particle size of the anti-clogging filler loaded in the vertical anti-clogging system.

[0049] Application Example 1

[0050] This application example constructed two sets of devices, one is a traditional horizontal subsurface flow artificial wetland (control group) with an appearance (the water inlet, water outlet and drain pipe positions, the pipe diameter is 20mm) and a scale of length * width * height = 800mm * 500mm * 550mm, and the other is an anti-clogging artificial wetland system (experimental group) using the above-mentioned embodiment. A section of river channel was selected as the water inlet source for comparative demonstration, and the water treatment volume was 160L / d. The traditional artificial wetland filler is gravel (particle size is 20mm), and the plant type and configuration are consistent with the artificial wetland system of the above-mentioned embodiment. After 3 months of operation, the SS and COD of the two groups of comparative test systems were examined. Cr , ammonia nitrogen and TP removal effects.

[0051] This application example specifically refines the anti-clogging artificial wetland system in the above embodiment:

[0052] The water inlet is 80mm higher than the water outlet, and ball valves are installed at the water inlet and outlet respectively;

[0053] The water inlet is lower than the modular detachable area and slightly higher than the upper part of the vertical anti-clogging system;

[0054] The water outlet is installed on the water outlet side of the lateral anti-clogging system;

[0055] The main filler of the wetland is crushed stone with a particle size of 20 mm;

[0056] The bottom water outlet is composed of nylon material with a pore size smaller than the particle size of the main wetland filler;

[0057] The overflow port is composed of nylon material with a pore size smaller than the particle size of the anti-clogging filler;

[0058] The drain pipe is opened and closed by a ball valve;

[0059] The bottom material of the modular removable area is nylon;

[0060] The base is crushed stone with a particle size of 20 mm;

[0061] The enhanced treatment system is equipped with floating islands with the same material and particle size specifications as the substrate, and its size is the standard hexagonal product on the market;

[0062] The aquatic plants are emergent plants, specifically calamus, with a planting density of 15 plants / square meter;

[0063] The plant roots are placed on the horizontal anti-clogging system and the vertical anti-clogging system. During operation, the roots will grow and may be inserted into the horizontal anti-clogging system and the vertical anti-clogging system.

[0064] The lower end of the second ventilation pipe is buried in the transverse anti-blocking system and is placed 50mm above the bottom, and the lower end of the first ventilation pipe is buried in the transverse anti-blocking system and is placed 30mm above;

[0065] The length, width and height of the transverse anti-blocking system are 500mm*500mm*150mm;

[0066] The lateral anti-clogging system is composed of hard mesh materials on all sides, the material of which is wire mesh, and the pore size is smaller than the particle size (15mm) of the anti-clogging filler composed of lightweight ceramsite, etc., and the filling ratio of the anti-clogging filler is 70%.

[0067] The vertical anti-clogging system is located between the water inlet and the enhanced anti-clogging system, with a length*width*height of 300mm*500mm*300mm, and is filled with anti-clogging filler, and the filling ratio of the anti-clogging filler is 70%;

[0068] The angle between the perforated inclined plate and the horizontal plane is less than 45 degrees, and the mesh number of the perforated inclined plate is 15;

[0069] The enhanced filter membrane is laid flat on the perforated inclined plate, and its mesh number is 60 and the material is non-woven fabric.

[0070] In this application example, the experimental group has a better removal effect on pollutants than the control group (traditional horizontal subsurface flow constructed wetland). Cr The removal rates of ammonia nitrogen and TP were 81.25%, 55.56%, 93.50% and 91.74% respectively; while the removal rates of the control group were 50.00%, 38.89%, 84.72% and 82.64% respectively.

[0071] Application Example 2

[0072] The main difference between this application example and application example 1 is that the water treatment volume is 900L / d, and the water enters the horizontal anti-clogging system through the overflow port during certain periods of time. The rest is the same as application example 1.

[0073] In this application example, the experimental group has a significantly better removal effect on pollutants than the control group. Cr The removal rates of TN and TP were 78.20%, 42.58%, 67.46% and 71.22% respectively; while those of the control group were 46.17%, 37.64%, 44.38% and 42.61% respectively.

[0074] In addition, it should be understood that after reading the above description of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. An anti-clogging artificial wetland system, characterized in that: It includes a wetland main filling area, a lateral anti-clogging system is arranged at the upper end, and a reinforced anti-clogging system is arranged at the outer side of the bottom; the reinforced anti-clogging system is connected with the wetland main filling area through the bottom water outlet, a vertical anti-clogging system is arranged at the upper end of the reinforced anti-clogging system, the reinforced anti-clogging system includes a perforated inclined plate and a reinforced filter membrane covered on the perforated inclined plate, and the anti-clogging artificial wetland system is provided with an emptying pipe on the side corresponding to the reinforced anti-clogging system; a modular detachable area is arranged above the vertical anti-clogging system and the lateral anti-clogging system; the vertical anti-clogging system and the lateral anti-clogging system are both arranged with anti-clogging fillers that can be suspended in water; The lateral anti-clogging system is filled with anti-clogging filler with a particle size of 10-20 mm, and is surrounded by a mesh structure composed of hard or soft mesh materials, the material of which is one or a combination of nylon, wire mesh, and non-woven fabrics, the pore size of which is smaller than the particle size of the anti-clogging filler, and the filling volume ratio of the anti-clogging filler inside is between 60% and 90%; The vertical anti-clogging system is filled with anti-clogging fillers with a particle size of 10 to 25 mm, and the filling volume ratio of the anti-clogging fillers is between 30% and 90%; The modular removable area includes a base and an enhanced treatment system disposed in the base, a first ventilation duct and a second ventilation duct; The bottom of the modular detachable area is in a grid shape, and its material is one or a combination of nylon, non-woven fabric, and iron wire, and its pore size is smaller than the particle size of the substrate, and is used to support the substrate; The substrate is one or a combination of gravel, crushed stone, zeolite, ceramsite, anthracite, and steel slag, with a particle size of 10 to 30 mm, and a thickness of 200 mm; The enhanced treatment system is a modular wetland or floating island with the same material and particle size as the substrate, or a combination thereof; aquatic plants are planted on the enhanced treatment system, and the aquatic plants are emergent plants, specifically one or a combination of canna, calamus, iris, loosestrife, and lily of the valley, with a planting density of 6-30 plants per square meter; the root system of the aquatic plants is located on the horizontal anti-clogging system and the vertical anti-clogging system or is interspersed in the horizontal anti-clogging system and the vertical anti-clogging system; The first ventilation duct and the second ventilation duct are separated by the enhanced treatment system and are respectively buried in different depths of the transverse anti-clogging system. The lower end of the second ventilation duct is located at the bottom of the transverse anti-clogging system, and the lower end of the first ventilation duct is located at the upper part of the transverse anti-clogging system. The upper ends of the first ventilation duct and the second ventilation duct are flush with the plane ring beam of the enhanced treatment system.

2. The anti-clogging artificial wetland system according to claim 1, characterized in that: A water inlet and a water outlet are respectively arranged on both sides of the anti-clogging artificial wetland system, the water inlet is located between the modular detachable area and the vertical anti-clogging system, and the water outlet is located between the modular detachable area and the lateral anti-clogging system or on the side of the lateral anti-clogging system; an overflow is arranged between the modular detachable area and the vertical anti-clogging system, close to the lateral anti-clogging system, the bottom end of the water inlet is not lower than the bottom end of the overflow, and the bottom end of the overflow is higher than the bottom end of the water outlet.

3. The anti-clogging artificial wetland system according to claim 2, characterized in that: The bottom of the water inlet is 50-100 mm higher than the bottom of the water outlet, and the water inlet and the water outlet are independently installed with a combination of one or more of a butterfly valve, a ball valve, and a solenoid valve; The overflow port has a width consistent with that of the anti-clogging artificial wetland system, and is made of one or more materials selected from nylon and wire mesh, the pore size of which is smaller than the particle size of the anti-clogging filler.

4. The anti-clogging artificial wetland system according to claim 1, characterized in that: The main wetland filler in the main wetland filler area is one or a combination of ceramsite, anthracite, steel slag, zeolite, and crushed stone, and its particle size is between 20 and 50 mm; The bottom water outlet is a mesh structure composed of one or more materials such as nylon and wire mesh, the pore size of which is smaller than the particle size of the wetland main filler, and its width and height are consistent with the enhanced anti-clogging system.

5. The anti-clogging artificial wetland system according to claim 1, characterized in that: The angle between the perforated inclined plate and the horizontal plane is less than 45 degrees, and the mesh number of the perforated inclined plate is 10-45 meshes; the mesh number of the enhanced filter membrane is 45-120 meshes, and the material is nylon, non-woven fabric, or a combination of several thereof.

6. The anti-clogging artificial wetland system according to claim 1, characterized in that: The drain pipe is opened and closed by a combination of one or more butterfly valves, ball valves, and solenoid valves installed thereon; a filter screen is installed on the inside of the drain pipe, and the material of the filter screen is one or more combinations of nylon and wire mesh, and the pore size is smaller than the particle size of the anti-clogging filler loaded in the vertical anti-clogging system.

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