A carbon source delivery pipe and biological circuit coupled vertical flow artificial wetland combined system

Abstract

The present application relates to a carbon source delivery pipe and a biological circuit coupled vertical flow artificial wetland combination system, which relates to the field of environmental protection water treatment technology, and includes a vertical flow artificial wetland system and a carbon source delivery pipe; the vertical flow artificial wetland system includes an anaerobic zone, a vertical flow anode zone, a vertical flow anode, a vertical flow cathode zone and a vertical flow cathode arranged from bottom to top, and a loop is formed between the vertical flow anode and the vertical flow cathode through a wire and a load connected in series on the wire; a water inlet is provided at the bottom of the vertical flow artificial wetland system and a water outlet is provided at the top; the carbon source delivery pipe is provided through the anaerobic zone, the vertical flow anode zone and the vertical flow cathode zone, and a connecting hole is provided, a carbon source module is provided in the carbon source delivery pipe, and the carbon source module can slide in the carbon source delivery pipe to change the position of the carbon source module. The present application has the effect of realizing the precise delivery of carbon sources, reducing the waste of the overall carbon source, and improving the treatment effect of the vertical flow artificial wetland system on sewage.

Description

Technical Field

[0001] The present application relates to the technical field of environmental protection water treatment, and in particular to a carbon source delivery pipe and a biological circuit coupled vertical flow artificial wetland combination system. Background Art

[0002] Vertical flow artificial wetland is an effective water treatment technology that combines the characteristics of surface flow wetland system and subsurface flow wetland system. The advantages of vertical flow artificial wetland include high treatment efficiency, small impact of climate, good sanitary conditions, and reduced floor space. In the process of purifying sewage, vertical flow artificial wetland mainly removes organic matter through the combined action of physical interception and precipitation and biological absorption and degradation. In the process of sewage treatment by vertical flow artificial wetland, combined with biofuel cells, chemical energy can be converted into electrical energy for power generation, thereby realizing the recycling of electricity. The vertical flow artificial wetland is divided into multiple treatment areas along the vertical direction. Corresponding microorganisms are added to each treatment area to catalyze the reaction of organic matter in the sewage.

[0003] In the process of sewage treatment by microorganisms in each treatment area, the carbon source is a key factor in providing the carbon elements required for microbial growth and promoting the biodegradation process. Therefore, the carbon content in sewage has an important influence on microbial growth and metabolism, nitrification and denitrification processes, etc. Therefore, ensuring sufficient carbon source in sewage is the key to the sewage treatment effect of vertical flow constructed wetlands.

[0004] The current method for delivering carbon sources to vertical flow constructed wetlands involves adding a carbon source delivery module upstream of the treatment zone. As wastewater flows through the module, the carbon content in the wastewater increases, ensuring sufficient carbon sources in each treatment zone. However, since the carbon source in the downstream treatment zone is consumed by the upstream treatment zone, it is difficult to ensure sufficient carbon sources in the downstream treatment zone, making it difficult to accurately deliver carbon sources to each treatment zone. Summary of the Invention

[0005] In order to improve the problem of difficulty in accurately delivering carbon sources to each treatment area, the present application provides a vertical flow artificial wetland combination system that couples a carbon source delivery tube with a biological circuit.

[0006] The present application provides a carbon source delivery tube and biological circuit coupled vertical flow artificial wetland combination system adopts the following technical solutions:

[0007] A carbon source delivery pipe and biological circuit coupled vertical flow artificial wetland combined system, comprising a vertical flow artificial wetland system and a carbon source delivery pipe;

[0008] The vertical flow artificial wetland system includes an anaerobic zone, a vertical flow anode zone, a vertical flow anode, a vertical flow cathode zone and a vertical flow cathode arranged from bottom to top, wherein a loop is formed between the vertical flow anode and the vertical flow cathode via a wire and a load connected in series to the wire;

[0009] The vertical flow artificial wetland system is provided with a water inlet at the bottom and a water outlet at the top;

[0010] The carbon source delivery pipe is arranged through the anaerobic zone, the vertical flow anode zone, and the vertical flow cathode zone, and is provided with a connecting hole connected to the anaerobic zone, the vertical flow anode zone, and the vertical flow cathode zone. A carbon source module is arranged in the carbon source delivery pipe, and the carbon source module can slide in the carbon source delivery pipe to change the position of the carbon source module.

[0011] By adopting the above technical solution, when the vertical flow artificial wetland system is used to treat sewage, the sewage enters the vertical flow artificial wetland system from the water inlet at the bottom, and then passes through the anaerobic zone, the vertical flow anode zone, and the vertical flow cathode zone from bottom to top. The sewage is treated by microorganisms and plants in the corresponding areas, and the treated sewage is formed into clean water and flows out from the water outlet at the top, completing the sewage treatment of the vertical flow artificial wetland system.

[0012] In the vertical flow constructed wetland system, the anaerobic zone and the vertical flow anode zone are degraded by microorganisms to produce protons and electrons. The electrons act on the vertical flow anode and flow to the vertical flow cathode through external wires. The protons flow into the vertical flow cathode zone and combine with the electrons to form a loop, realizing the conversion of chemical energy into electrical energy.

[0013] As microorganisms catalyze the reaction of organic matter, the carbon content in the corresponding area decreases. The carbon source module is moved along the carbon source delivery pipe to the corresponding anaerobic zone, vertical flow anode zone, and vertical flow cathode zone. The sewage passes through the connecting hole and contacts the carbon source module, thereby achieving precise delivery of carbon sources in the anaerobic zone, vertical flow anode zone, and vertical flow cathode zone, which can reduce the overall waste of carbon sources and improve the sewage treatment effect of the vertical flow artificial wetland system.

[0014] In a specific embodiment, the carbon source module includes a carbon source block, a carrier tube and a pull-out ring. The carrier tube is slidably connected to the carbon source delivery tube. The carbon source block is embedded in the carrier tube. The pull-out ring is fixedly arranged on the top of the carrier tube.

[0015] By adopting the above technical solution, the tool is used to hook the pull ring to drive the carrier tube and the carbon source block to slide, thereby improving the convenience of moving the position of the carbon source block.

[0016] In a specific embodiment, the internal matrix of the vertical flow artificial wetland system is, from bottom to top, a gravel layer, an iron-carbon slow-release carbon source and volcanic rock, and an ecological soil layer.

[0017] In a specific feasible implementation scheme, an opening and closing layer is provided at the bottom of the anaerobic zone, the vertical flow anode zone, and the vertical flow cathode zone. The opening and closing layer is used to block the flow of sewage so that the sewage flows into the downstream area through the carbon source delivery pipe. The carrier tube can be moved to the position of the opening and closing layer and control the opening or closing of the opening and closing layer.

[0018] By adopting the above technical solution, when carbon sources are added to the three areas, the carrier tube is moved to the opening and closing layer of the corresponding area, and the opening and closing layer is controlled to close, so that the upstream sewage passes through the carbon source block in the carbon source addition tube and then flows into the downstream area to be added, thereby improving the uniformity of carbon source addition in the anaerobic area, vertical flow anode area, and vertical flow cathode area.

[0019] In a specific feasible implementation scheme, the opening and closing layer includes an upper mesh layer and a lower mesh layer that are spaced apart, the carbon source delivery tube is passed through the upper mesh layer and the lower mesh layer, a plurality of water holes are opened on the lower mesh layer, and a plurality of sealing parts for sealing the water holes are provided on the upper mesh layer, the sealing parts correspond to the water holes one by one and are arranged relative to each other, the lower mesh layer is fixedly connected to the carbon source delivery tube, the upper mesh layer is slidably connected to the carbon source delivery tube, and the carrier tube controls the insertion and withdrawal of the sealing parts into and out of the water holes through a control part.

[0020] By adopting the above technical solution, when the carrier tube moves to the corresponding opening and closing layer position, the carrier tube presses down on the mesh plate layer to the lower mesh plate layer, so that the blocking part is inserted into the water hole, blocking the water hole, so that the upstream sewage is gathered and flows into the carbon source delivery pipe through the connecting pipe, and then after the carbon source is delivered through the carbon source block, it flows into the downstream area again through the connecting hole. The sewage after the carbon source is delivered fills the downstream area, thereby improving the uniformity of the carbon source delivery.

[0021] In a specific feasible implementation scheme, the control member includes a telescopic spring and a control part. The telescopic spring is arranged between the upper mesh plate layer and the lower mesh plate layer and is abutted against each other so that the upper mesh plate layer and the lower mesh plate layer are spaced apart. The carbon source delivery tube is provided with a sliding through hole at a position corresponding to the upper mesh plate layer. The control part is fixedly arranged on the upper mesh plate layer and extends into the carbon source delivery tube. The carrier tube can press down the control part to move so that the control part is inserted into the water hole.

[0022] By adopting the above technical solution, when the opening and closing layer is closed, the carrier tube is driven to press the control part downward to move, and the control part drives the upper mesh plate layer to move downward to the lower mesh plate layer, so that the opening and closing layer is closed. When the opening and closing layer is opened, the carrier tube is disengaged from the control part, and the telescopic spring pushes the mesh plate layer to move upward, so that the opening and closing layer is opened, thereby improving the convenience of opening and closing the opening and closing layer.

[0023] In a specific possible implementation scheme, the projections of the three groups of control parts on the horizontal plane are staggered, and a driving part for pressing down the control parts is provided on the carrier tube. The driving part can be aligned with the three groups of control parts respectively through the rotation of the carrier tube.

[0024] By adopting the above technical solution, the carrier tube is rotated so that the driving part is opposite to the three control parts respectively, so as to realize the separate control of the three opening and closing layers, thereby improving the convenience of the carrier tube in controlling the three opening and closing layers.

[0025] In a specific possible implementation scheme, three groups of guide grooves are provided on the inner wall of the carbon source delivery tube. The three groups of guide grooves are arranged along the axial direction of the carbon source delivery tube and correspond one-to-one with the three groups of control parts. The driving part is provided with a guide part for inserting into the guide groove.

[0026] By adopting the above technical solution, the guide groove guides the guide part, which can ensure that the driving part and the control part are aligned when the carrier tube slides, thereby improving the stability of the carrier tube in controlling the opening and closing of the opening and closing layer.

[0027] In a specific possible implementation scheme, the guide part is slidably inserted into the driving part, and the guide part and the driving part are connected by an extrusion spring. The extrusion spring is used to drive the guide part to insert into the guide groove. A guide surface is provided on the bottom wall of the guide groove, and the guide surface is used to guide the guide part to rotate out of the guide groove.

[0028] By adopting the above technical solution, when the driving part is aligned with the corresponding control part, the extrusion spring pushes the guide part to be inserted into the corresponding guide groove. When the driving part needs to be aligned with other control parts, the carrier tube is rotated, and the guide part is guided out of the guide groove by the guide surface and inserted into the corresponding guide groove as the carrier tube rotates, thereby improving the convenience of adjusting the position of the driving part.

[0029] In a specific possible implementation manner, a supporting mesh layer is provided above each of the upper mesh plate layers.

[0030] By adopting the above technical solution, the support of the support mesh layer to the web layer is utilized to reduce the pressure of the substrate above the web layer on the web layer, thereby improving the stability of the web layer driven upward by the telescopic spring.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. As microorganisms catalyze the reaction of organic matter, the carbon content in the corresponding area decreases. The carbon source module is moved along the carbon source delivery pipe to the corresponding anaerobic zone, vertical flow anode zone, and vertical flow cathode zone. The sewage passes through the connecting hole and contacts the carbon source module, thereby achieving precise delivery of carbon sources in the anaerobic zone, vertical flow anode zone, and vertical flow cathode zone. This can reduce the overall waste of carbon sources and improve the sewage treatment effect of the vertical flow constructed wetland system;

[0033] 2. The bio-circuit type is combined with the vertical flow constructed wetland. The synergistic effects and structure of the vertical flow constructed wetland in terms of physics, chemistry and biology are combined to further denitrify the sewage while generating electricity, thus improving the removal of nitrogen in the sewage and its resource utilization;

[0034] 3. When the carrier tube moves to the corresponding opening and closing layer position, the carrier tube is pressed down on the mesh plate layer to the lower mesh plate layer, so that the blocking part is inserted into the water hole, blocking the water hole, so that the sewage from the upstream is gathered and flows into the carbon source delivery pipe through the connecting pipe, and then after the carbon source is delivered through the carbon source block, it flows into the downstream area again through the connecting hole. The sewage after the carbon source is delivered fills the downstream area, thereby improving the uniformity of the carbon source delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural diagram of a carbon source delivery pipe and a biological circuit coupled vertical flow artificial wetland combination system according to Example 1 of the present application.

[0036] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0037] Figure 3 This is a structural diagram of a carbon source delivery pipe and biological circuit coupled vertical flow artificial wetland combination system according to Example 2 of the present application.

[0038] Figure 4 yes Figure 2 Enlarged view of part B in the middle.

[0039] Figure 5 yes Figure 2 Enlarged view of part C in the middle.

[0040] Figure 6 It is a schematic diagram used to show the projection structure of three groups of control parts on a plane.

[0041] Figure 7 It is a structural schematic diagram used to show the cooperation between the guide part and the guide groove.

[0042] Figure 8 yes Figure 2 Enlarged view of part D in the middle.

[0043] Explanation of the accompanying symbols: 1. Vertical flow artificial wetland system; 11. Water inlet; 12. Water outlet; 13. Water collection tank; 14. Water outlet pipe; 15. Water inlet area; 2. Carbon source delivery pipe; 21. Connecting hole; 22. Carbon source module; 221. Carbon source block; 222. Carrying tube; 223. Pull-out ring; 3. Anaerobic area; 4. Vertical flow anode area; 41. Vertical flow anode; 5. Vertical flow cathode area; 51. Vertical flow cathode; 52. Wetland plants; 6. Opening and closing layer; 61. Upper mesh layer; 62. Lower mesh layer; 63. Water hole; 64. Sealing part; 65. Control part; 651. Telescopic spring; 652. Control part; 653. Sliding through hole; 654. Driving part; 655. Guide groove; 656. Guide surface; 657. Guide part; 658. Extrusion spring; 659. Contact surface; 7. Support mesh layer. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-8 This application is described in further detail.

[0045] The embodiments of the present application disclose a vertical flow artificial wetland combination system in which a carbon source delivery pipe is coupled with a biological circuit.

[0046] Example 1

[0047] Reference Figure 1 、 Figure 2 A carbon source delivery pipe and a biological circuit coupled vertical flow artificial wetland combination system includes a vertical flow artificial wetland system 1 and a carbon source delivery pipe 2. The vertical flow artificial wetland system 1 is provided with a water inlet 11 and a water outlet 12 on the top, so that sewage enters the vertical flow artificial wetland system 1 from the bottom and discharges from the top. The vertical flow artificial wetland system 1 is provided with a collection pool 13 around the water outlet 12. The pool wall of the collection pool 13 is higher than the water outlet 12, so that the treated water can overflow the water outlet 12 and flow into the collection pool 13. The bottom of the collection pool 13 is provided with an outlet pipe 14 to discharge the water flowing into the collection pool 13.

[0048] Reference Figure 1 、 Figure 2The vertical flow artificial wetland system 1 is arranged from bottom to top in the anaerobic zone 3, vertical flow anode zone 4, vertical flow anode 41, vertical flow cathode zone 5 and vertical flow cathode 51. The anaerobic zone 3 is composed of gravel and ceramsite with a particle size of 10-20 mm, and the filler height is about 150-200 mm. The vertical flow anode zone 4 is composed of corn cob biocarbon source and volcanic rock with a particle size of 5-10 mm, and the filler height is about 200-250 mm. The vertical flow cathode zone 5 is composed of ecological soil filler, and the filler height is about 100-200 mm. Wetland plants 52 are planted on the upper part of the vertical flow artificial wetland system 1. The wetland plants 52 are yellow iris, which have good ecological value, economic value, aesthetic value and water purification ability.

[0049] Reference Figure 1 、 Figure 2 The carbon source delivery pipe 2 is vertically inserted through the anaerobic zone 3, the vertical flow anode zone 4, and the vertical flow cathode zone 5. Made of PVC, the pipe has an outer diameter of 70 mm, an inner diameter of 60 mm, and a length of 600 mm. Connecting holes 21 are evenly distributed around the pipe wall, spaced 30 mm apart in the longitudinal direction and 10 mm in diameter. This ensures that the anaerobic zone 3, the vertical flow anode zone 4, and the vertical flow cathode zone 5 are all connected to the carbon source delivery pipe 2 through the connecting holes 21.

[0050] Reference Figure 1 、 Figure 2 The carbon source delivery tube 2 is equipped with a carbon source module 22. In this embodiment, the carbon source module 22 includes a carbon source block 221, a carrier tube 222, and a pull ring 223. The carrier tube 222 is slidably connected to the carbon source delivery tube 2. The carbon source block 221 is embedded in the carrier tube 222. The carbon source block 221 uses a fixed carbon source, which can be selected from agricultural waste, natural cellulose, artificial synthetic polymers, or natural plants containing cellulose. The carbon source block 221 has a porous structure, and the contact area between the carbon source block 221 and the sewage is small. The pull ring 223 is fixedly mounted on the top of the carrier tube 222. The pull ring 223 is pulled by a tool to control the vertical movement of the carbon source position.

[0051] The simulated sewage first enters the vertical flow artificial wetland system 1 from the water inlet 11, and flows into the anaerobic zone 3, the vertical flow anode zone 4, and the vertical flow cathode zone 5 in sequence. Finally, the treated water flows into the collection tank 13 and is collected through the outlet pipe 14.

[0052] In the vertical flow constructed wetland system 1, microorganisms in the anaerobic zone 3 and the vertical flow anode zone 4 degrade organic matter, generating protons and electrons. The electrons flow through external wires to the vertical flow cathode 51. Within the vertical flow cathode zone 5, wetland plants 52 and air provide oxygen, causing nitrification. Nitrates are then reduced by electrons from the vertical flow cathode 51, thereby achieving power generation through wastewater treatment.

[0053] The implementation principle of Example 1 is: as microorganisms catalyze the reaction of organic matter, the carbon content in the corresponding area decreases, and the carbon source module 22 is moved along the carbon source delivery pipe 2 to the corresponding anaerobic zone 3, vertical flow anode zone 4, and vertical flow cathode zone 5. The sewage passes through the connecting hole 21 and contacts the carbon source module 22, thereby realizing the precise delivery of carbon sources in the anaerobic zone 3, vertical flow anode zone 4, and vertical flow cathode zone 5, which can reduce the overall waste of carbon sources and improve the sewage treatment effect of the vertical flow artificial wetland system 1.

[0054] Example 2

[0055] Reference Figure 3 、 Figure 4 The difference between this embodiment and embodiment 1 is that an opening and closing layer 6 is provided at the bottom of the anaerobic zone 3, the vertical flow anode zone 4, and the vertical flow cathode zone 5. The provision of the opening and closing layer 6 forms a water inlet area 15 at the bottom of the anaerobic zone 3. The opening and closing layer 6 is used to block the flow of sewage to the downstream area, allowing the sewage to flow into the downstream area through the carbon source delivery pipe 2. The carrier tube 222 can be moved to the position of the opening and closing layer 6 and control the opening or closing of the opening and closing layer 6.

[0056] The opening and closing layer 6 in this embodiment includes an upper mesh layer 61 and a lower mesh layer 62 that are spaced apart. The upper mesh layer 61 is a plate-like structure with mesh holes, and the lower mesh layer 62 is provided with a plurality of water holes 63. Sewage passes through the upper mesh layer 61 and the lower mesh layer 62 by means of the water holes 63 and the mesh holes in the upper mesh layer 61, thereby enabling sewage to flow in various areas of the vertical flow artificial wetland system 1. The upper mesh layer 61 is slidably arranged in the vertical flow artificial wetland system 1, and the lower mesh layer 62 is fixedly arranged in the vertical flow artificial wetland system 1. A supporting mesh layer 7 is provided above each upper mesh layer 61. The support provided by the supporting mesh layer 7 on the upper mesh layer 61 reduces the pressure of the substrate above the upper mesh layer 61 on the upper mesh layer 61, thereby improving the stability of the telescopic spring 651 in driving the upper mesh layer 61 upward.

[0057] Reference Figure 3 、 Figure 4 The carbon source delivery pipe 2 is arranged through the upper mesh layer 61, the lower mesh layer 62 and the supporting mesh layer 7. The upper mesh layer 61 is fixedly provided with a blocking portion 64 on the side facing the lower mesh layer 62. The blocking portion 64 corresponds to the water hole 63 one by one and is arranged in coordination. When the carrier tube 222 carrying the carbon source block 221 moves to the opening and closing layer 6 at the bottom of the corresponding area, the carrier tube 222 controls the blocking portion 64 to be inserted into and withdrawn from the water hole 63 through the control component 65, thereby realizing the control of the opening and closing of the opening and closing layer 6.

[0058] Reference Figure 3 、 Figure 4 and Figure 5In this embodiment, the control member 65 includes a telescopic spring 651 and a control portion 652. The telescopic spring 651 is disposed between the upper mesh layer 61 and the lower mesh layer 62, and is disposed in abutment therewith, so that the upper mesh layer 61 and the lower mesh layer 62 are spaced apart. The carbon source delivery tube 2 has two sliding holes 653 defined at positions corresponding to the upper mesh layer 61. The two sliding holes 653 are opposed to each other along the circumference of the carbon source delivery tube 2, and each sliding hole 653 is disposed along the axial direction of the carbon source delivery tube 2. The control portions 652 correspond one to one with the sliding holes 653. Each control portion 652 is fixedly disposed on the upper mesh layer 61 and extends into the carbon source delivery tube 2.

[0059] Reference Figure 6 、 Figure 7 The projections of the three groups of control parts 652 on the horizontal plane are staggered and arranged at intervals of 60 degrees along the circumference of the carbon source delivery tube 2. Two driving parts 654 are provided between the carrier tube 222 and the inner wall of the carbon source delivery tube 2. The two driving parts 654 slide along the inner wall of the carbon source delivery tube 2 and face each other along the circumference of the carrier tube 222, thereby ensuring that the carrier tube 222 rotates 60 degrees so that the driving parts 654 face the control parts 652 of different groups. When the carbon source needs to be added to the corresponding area, the carrier tube 222 is rotated so that the driving parts 654 face the control parts 652 in the corresponding area. The control part 652 is aligned, and then a tool is used to press down the carrier tube 222. The carrier tube 222 drives the driving part 654 to press down the control part 652. The control part 652 drives the mesh plate layer 61 to move downward, and drives the blocking part 64 to be inserted into the water hole 63 to block the water hole 63, so that the sewage upstream of the corresponding lower mesh plate layer 62 is gathered and flows into the carbon source delivery pipe 2 through the connecting pipe. After the carbon source is delivered through the carbon source block 221, it flows into the downstream area through the connecting hole 21 again. The sewage after the carbon source is delivered fills the downstream area, thereby improving the uniformity of the carbon source delivery.

[0060] Reference Figure 7 Three groups of guide grooves 655 are opened on the inner wall of the carbon source delivery tube 2. The three groups of guide grooves 655 are arranged along the axial direction of the carbon source delivery tube 2 and correspond one-to-one to the three groups of control parts 652. The bottom wall of each group of guide grooves 655 is an arc-shaped guide surface 656.

[0061] Reference Figure 7 、 Figure 8The driving portion 654 is provided with a guide portion 657 for insertion into the guide groove 655. The guide portion 657 is plugged into the driving portion 654 and slides radially along the driving portion 654. The driving portion 654 is embedded with a compression spring 658, which is sleeved on the guide portion 657. One end of the compression spring 658 is fixedly connected to the guide portion 657, and the other end is fixedly connected to the driving portion 654. Initially, the compression spring 658 applies a thrust to the guide portion 657 toward the carbon source delivery tube 2. The front end of the guide portion 657 has an arcuate contact surface 659 that mates with the guide surface 656, allowing the guide portion 657 to rotate out of the guide groove 655 when the carrier tube 222 is rotated.

[0062] When the carrier tube 222 is rotated, the guide portion 657 is inserted into the guide groove 655. The guide groove 655 guides the guide portion 657, ensuring alignment between the drive portion 654 and the control portion 652 as the carrier tube 222 slides, thereby improving the stability of the carrier tube 222 in controlling the opening and closing of the opening and closing layer 6. When the drive portion 654 is aligned with the corresponding control portion 652, the compression spring 658 pushes the guide portion 657 into the corresponding guide groove 655. When the drive portion 654 needs to be aligned with the other control portion 652, the carrier tube 222 is rotated. The guide portion 657, guided by the guide surface 656, rotates out of the guide groove 655 and, as the carrier tube 222 rotates, inserts into the corresponding guide groove 655, thereby improving the convenience of adjusting the position of the drive portion 654.

[0063] The implementation principle of Example 2 is: when the carbon source needs to be added to the corresponding area, the carrier tube 222 is rotated so that the driving part 654 is aligned with the control part 652 in the corresponding area, and then the carrier tube 222 is pressed down by a tool. The carrier tube 222 drives the driving part 654 to press down the control part 652, and the control part 652 drives the upper mesh layer 61 to move downward, and drives the blocking part 64 to be inserted into the water hole 63 to block the water hole 63, so that the sewage upstream of the corresponding lower mesh layer 62 is gathered and flows into the carbon source delivery pipe 2 through the connecting pipe, and then after the carbon source delivery is completed through the carbon source block 221, it flows into the downstream area again through the connecting hole 21. The sewage after the carbon source delivery fills the downstream area, thereby improving the uniformity of the carbon source delivery.

[0064] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A carbon source delivery pipe coupled with a biological circuit and a vertical flow constructed wetland combination system, characterized by: It includes a vertical flow artificial wetland system (1) and a carbon source delivery pipe (2); The vertical flow artificial wetland system (1) comprises an anaerobic zone (3), a vertical flow anode zone (4), a vertical flow anode (41), a vertical flow cathode zone (5) and a vertical flow cathode (51) arranged from bottom to top, wherein a loop is formed between the vertical flow anode (41) and the vertical flow cathode (51) via a wire and a load connected in series on the wire; The vertical flow artificial wetland system (1) is provided with a water inlet (11) at the bottom and a water outlet (12) at the top; The carbon source delivery pipe (2) is provided through the anaerobic zone (3), the vertical flow anode zone (4), and the vertical flow cathode zone (5), and is provided with a communication hole (21) communicating with the anaerobic zone (3), the vertical flow anode zone (4), and the vertical flow cathode zone (5). A carbon source module (22) is provided in the carbon source delivery pipe (2), and the carbon source module (22) can slide in the carbon source delivery pipe (2) to change the position of the carbon source module (22); The carbon source module (22) comprises a carbon source block (221), a carrier tube (222) and a pull-out ring (223); the carrier tube (222) is slidably connected to the carbon source delivery tube (2); the carbon source block (221) is embedded in the carrier tube (222); and the pull-out ring (223) is fixedly arranged on the top of the carrier tube (222); The bottoms of the anaerobic zone (3), the vertical flow anode zone (4), and the vertical flow cathode zone (5) are all provided with an opening and closing layer (6), the opening and closing layer (6) being used to block the flow of sewage so that the sewage flows into the downstream area through the carbon source delivery pipe (2), and the carrier tube (222) is capable of moving to the position of the opening and closing layer (6) and controlling the opening or closing of the opening and closing layer (6); The opening and closing layer (6) comprises an upper mesh layer (61) and a lower mesh layer (62) which are arranged at intervals. The carbon source delivery pipe (2) is passed through the upper mesh layer (61) and the lower mesh layer (62). The lower mesh layer (62) is provided with a plurality of water holes (63). The upper mesh layer (61) is provided with a plurality of blocking parts (64) for blocking the water holes (63). The blocking parts (64) correspond to the water holes (63) one by one and are arranged relative to each other. The carrier tube (222) controls the blocking parts (64) to be inserted into and withdrawn from the water holes (63) through a control part (65).

2. The carbon source delivery pipe and biological circuit coupled vertical flow artificial wetland combined system according to claim 1 is characterized by: The internal matrix of the vertical flow artificial wetland system (1) comprises, from bottom to top, a gravel layer, an iron-carbon slow-release carbon source and volcanic rock, and an ecological soil layer.

3. The carbon source delivery pipe and biological circuit coupled vertical flow constructed wetland combined system according to claim 1, characterized in that: The lower mesh layer (62) is fixedly connected to the carbon source delivery tube (2), and the upper mesh layer (61) is slidably connected to the carbon source delivery tube (2); The control member (65) includes a telescopic spring (651) and a control portion (652). The telescopic spring (651) is arranged between the upper screen layer (61) and the lower screen layer (62) and is arranged in abutment with each other so that the upper screen layer (61) and the lower screen layer (62) are spaced apart. The carbon source delivery tube (2) is provided with a sliding through hole (653) at a position corresponding to the upper screen layer (61). The control portion (652) is fixedly arranged on the upper screen layer (61) and extends into the carbon source delivery tube (2). The carrier tube (222) can press down the control portion (652) to move it so that the control portion (652) is inserted into the water hole (63).

4. The carbon source delivery pipe and biological circuit coupled vertical flow constructed wetland combined system according to claim 3, characterized in that: The projections of the three groups of control parts (652) on the horizontal plane are staggered, and a driving part (654) for pressing down the control parts (652) is provided on the carrier tube (222). The driving part (654) can be aligned with the three groups of control parts (652) respectively through the rotation of the carrier tube (222).

5. The carbon source delivery pipe and biological circuit coupled vertical flow constructed wetland combined system according to claim 4, characterized in that: Three groups of guide grooves (655) are provided on the inner side wall of the carbon source delivery tube (2). The three groups of guide grooves (655) are all arranged along the axial direction of the carbon source delivery tube (2) and correspond one-to-one to the three groups of control parts (652). The driving part (654) is provided with a guide part (657) for inserting into the guide groove (655).

6. The carbon source delivery pipe and biological circuit coupled vertical flow constructed wetland combined system according to claim 5, characterized in that: The guide portion (657) is slidably inserted into the driving portion (654). The guide portion (657) is connected to the driving portion (654) via a compression spring (658). The compression spring (658) is used to drive the guide portion (657) to be inserted into the guide groove (655). A guide surface (656) is provided on the bottom wall of the guide groove (655). The guide surface (656) is used to guide the guide portion (657) to rotate out of the guide groove (655).

7. The carbon source delivery pipe and biological circuit coupled vertical flow constructed wetland combined system according to claim 1, characterized in that: A supporting mesh layer (7) is provided above each of the mesh plate layers (61).

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