A sewage treatment device based on water pollution

Abstract

The present application relates to sewage purification technical field, disclose a kind of sewage treatment device based on water pollution, including processing cylinder and the top cover being installed to its top, further include: be located in the inside of processing cylinder and vertically arranged eccentric rod, the outer wall of the eccentric rod is equipped with ultraviolet lamp tube, the eccentric rod can do circumferential rotation in the inside of processing cylinder along the axis direction of processing cylinder, and make the irradiation range of the ultraviolet lamp tube circumferential scanning is killing area;Air inlet assembly is installed on eccentric rod and located below ultraviolet lamp tube, the air inlet assembly can spray killing gas upward in sewage while rotating with eccentric rod.This application can prevent or reduce inorganic salt in sewage from adhering to the wall of ultraviolet lamp tube by using bubble isolation zone, avoid forming environment conducive to the adhesion of inorganic salt scale on the surface of lamp tube wall, so as to avoid the possibility of inorganic salt scale adhesion from the root, ensure the light transmittance of ultraviolet lamp tube.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, specifically to a wastewater treatment device based on water pollution. Background Technology

[0002] With the rapid development of industrialization and urbanization, wastewater treatment has become an important part of environmental protection and sustainable development. At present, the main methods for wastewater purification are physical and chemical methods to kill bacteria, viruses and other harmful microorganisms in wastewater in order to prevent the spread of diseases and environmental pollution.

[0003] Common disinfection methods include chlorine disinfection, ultraviolet disinfection, and ozone disinfection. Ultraviolet disinfection mainly destroys the genetic material of microorganisms such as DNA and RNA through ultraviolet irradiation. It has the advantages of fast disinfection speed and no chemical residue. However, since the lamp tube is in direct contact with sewage, the surface is easily contaminated by suspended solids and microorganisms in the sewage, which can affect the light transmittance of the lamp tube and thus affect its disinfection effect.

[0004] Therefore, the Chinese patent publication number CN119528265A discloses a sterilization and disinfection device for sewage treatment. This sterilization and disinfection device uses the rotation of the ultraviolet lamp tube in conjunction with the cleaning of the brush to ensure that the outer wall of the lamp tube is always clean, thereby stably exerting the ultraviolet disinfection effect.

[0005] However, both the UV lamp tube and the brush bristles are immersed in sewage. On the one hand, the brush bristles can block the irradiation range of UV rays to a certain extent, reducing the disinfection effect. On the other hand, when the sewage contains calcium and magnesium ions, they can easily adhere to the UV lamp tube or brush bristles to form inorganic salt scale. Although the brush bristles can clean the inorganic salt scale on the UV lamp tube, the inorganic salt scale attached to the brush bristles may scratch or damage the lamp tube wall when it comes into contact with the UV lamp tube, thereby affecting its disinfection effect and reducing the service life of the UV lamp tube. Summary of the Invention

[0006] The purpose of this invention is to provide a wastewater treatment device based on water pollution, so as to solve at least one technical problem existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device based on water pollution, comprising a treatment cylinder and a top cover installed on top of it, and further comprising:

[0008] An eccentric rod is installed inside the processing cylinder and is arranged vertically. An ultraviolet lamp is installed on the outer wall of the eccentric rod. The eccentric rod can rotate circumferentially inside the processing cylinder along the axial direction of the processing cylinder, and make the irradiation range of the ultraviolet lamp scan the circumferential area as the disinfection area.

[0009] An air intake assembly installed on an eccentric rod and located below the ultraviolet lamp tube can spray disinfectant gas upwards into the sewage as the eccentric rod rotates, and the rising disinfectant gas can form a bubble isolation zone around the ultraviolet lamp tube.

[0010] Optionally, a second connecting rod is rotatably mounted on the inner bottom of the processing cylinder, the bottom end of the eccentric rod is rotatably mounted on the end of the second connecting rod away from the rotation point, a fixing rod is fixedly fixed through the top of the top cover, a first connecting rod is rotatably mounted on the outer wall of the processing cylinder through the fixing rod, and the top end of the eccentric rod is rotatably mounted on the end of the first connecting rod away from the fixing rod, and a servo motor for driving the second connecting rod to rotate is mounted on the bottom of the processing cylinder.

[0011] Optionally, a fixed gear is coaxially fixed to the bottom end of the fixed rod, and a transmission gear that meshes with the fixed gear is coaxially fixed to the outer wall of the eccentric rod.

[0012] Optionally, the air intake assembly includes a rotating cylinder fixed near the bottom of the eccentric rod. The rotating cylinder divides the eccentric rod into upper and lower sections, and both sections of the eccentric rod are fixedly connected to the outer wall of the rotating cylinder. A piston plate is horizontally slidably installed inside the rotating cylinder, and a piston rod is fixedly inserted through the center of the piston plate. The two ends of the piston rod protrude from the outer walls of the two sides of the rotating cylinder, respectively. When the rotating cylinder rotates with the eccentric rod, the two ends of the piston rod can intermittently contact and abut against the inner wall of the processing cylinder. The top of the rotating cylinder on both sides of the eccentric rod is provided with multiple sets of air outlets that can only exit in one direction. The interior of the eccentric rod is provided with an air intake channel that communicates with the interior of the rotating cylinder and can allow air to enter in one direction. The air intake channel is connected to an external air storage device.

[0013] Optionally, the air intake channel includes an air delivery channel formed within the eccentric rod and the fixed rod, and the air delivery channel is equipped with a one-way valve. It also includes an intermediate channel formed within the first connecting rod. A connecting groove is formed at the connection between the fixed rod and the first connecting rod and at the connection between the eccentric rod and the first connecting rod. The connecting groove keeps the two air delivery channels and the intermediate channel unobstructed. The end of the fixed rod that extends out of the processing cylinder is connected to an external air storage device.

[0014] Optionally, the air outlets are arranged in a spiral pattern at the top of the rotating cylinder, and the inner diameter of the air outlets gradually increases from the inside to the outside.

[0015] Optionally, a scraper is also installed on the outer wall of the second connecting rod, and the scraper is designed to be vertical or to be designed with a gradually changing slope.

[0016] Optionally, the eccentric rod is located at the midpoint of the radius line of the processing cylinder.

[0017] Optionally, the eccentric rod is configured as two segments that are inserted into each other, and a sealing ring is provided at the joint of the two segments.

[0018] Optionally, the bottom of the processing cylinder is provided with a drain pipe, the top of the top cover is connected to a water inlet pipe, and both the drain pipe and the water inlet pipe are equipped with solenoid valves. The top of the top cover is also connected to an exhaust pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] I. This invention utilizes the bubble isolation zone formed by the disinfecting gas to prevent or reduce the adhesion of inorganic salts in wastewater to the wall of the ultraviolet lamp tube, avoiding the formation of an environment conducive to the adhesion of inorganic salt scale on the lamp tube surface. This effectively eliminates the possibility of inorganic salt scale adhesion at the source, ensuring the light transmittance of the ultraviolet lamp tube. Furthermore, by utilizing the effect of bubbles to encapsulate and carry suspended matter in the wastewater to the surface, they can further distance it from the ultraviolet lamp tube, reducing the probability of it adhering to the lamp tube surface. At the same time, since the air intake component rotates and moves with the ultraviolet lamp tube, the disinfecting gas can also have more sufficient contact with the wastewater, achieving a good disinfection effect.

[0021] Second, this invention utilizes a dual sterilization mechanism that combines ultraviolet irradiation disinfection with disinfectant gas disinfection. The two sterilization mechanisms are different but complementary, which can more comprehensively kill pathogens such as bacteria, viruses, fungi and protozoa, and improve the stability and reliability of the disinfection effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is the front view of the present invention;

[0024] Figure 3 This is a front sectional view of the present invention;

[0025] Figure 4 For the present invention Figure 3 Cross-sectional stereoscopic view and enlarged detail view from different perspectives;

[0026] Figure 5 For the present invention Figure 3 Sectional view along the middle AA;

[0027] Figure 6 For the present invention Figure 4 Enlarged view of point B in the image;

[0028] Figure 7 This is the left view of the present invention;

[0029] Figure 8 For the present invention Figure 7 A partial sectional perspective view along the CC axis;

[0030] Figure 9 For the present invention Figure 7 A sectional view along the middle DD.

[0031] In the diagram: 1. Processing cylinder; 2. Top cover; 3. Fixing rod; 4. First connecting rod; 5. Eccentric rod; 6. Ultraviolet lamp; 7. Fixed gear; 8. Transmission gear; 9. Rotating cylinder; 10. Piston plate; 11. Second connecting rod; 12. Air outlet; 13. Piston rod; 14. Scraper; 15. Gas delivery channel; 16. Intermediate channel; 17. Connecting groove; 18. Roller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 9 The present invention provides a technical solution: a wastewater treatment device based on water pollution, comprising a treatment cylinder 1 and a top cover 2 installed on its top, and further comprising:

[0034] An eccentric rod 5 is installed inside the treatment cylinder 1 and is arranged vertically. An ultraviolet lamp 6 is installed on the outer wall of the eccentric rod 5. The eccentric rod 5 can rotate in a circle inside the treatment cylinder 1 along the axial direction of the treatment cylinder 1, and make the irradiation range of the ultraviolet lamp 6 scan the circumferential area as the disinfection area.

[0035] The air intake assembly, installed on the eccentric rod 5 and located below the ultraviolet lamp tube 6, can spray disinfectant gas upward into the sewage as the eccentric rod 5 rotates, and the rising disinfectant gas can form a bubble isolation zone around the ultraviolet lamp tube 6.

[0036] With the rapid development of industrialization and urbanization, wastewater treatment has become a crucial aspect of environmental protection and sustainable development. Wastewater generated during water conservancy construction often contains large amounts of organic matter, heavy metal ions, and pathogenic microorganisms. If these pollutants are not effectively treated, they can cause serious harm to the environment. Currently, ultraviolet (UV) irradiation disinfection can disinfect pathogens and microorganisms in wastewater. However, because the lamps are immersed in wastewater for disinfection, their surfaces are easily contaminated by suspended solids, microbial films, and inorganic scale, affecting the disinfection effect. Therefore, this case proposes optimizing the disinfection method to reduce or even avoid contamination of the lamp surface, ensuring disinfection effectiveness while reducing maintenance frequency and costs. The specific methods are as follows:

[0037] See Figure 3After the sewage is discharged into the treatment cylinder 1, the eccentric rod 5 is driven by the external structure to rotate in a circle along the axis of the treatment cylinder 1 inside the treatment cylinder 1, and the irradiation range of the ultraviolet lamp tube 6 is scanned in a circle to form a disinfection area, so as to disinfect the sewage in the treatment cylinder 1. In this way, the ultraviolet lamp tube 6 can not only ensure the irradiation intensity, but also increase its irradiation range, thereby improving the efficiency of disinfection treatment.

[0038] Moreover, due to the circumferential rotation of the ultraviolet lamp tube 6, compared to the stationary irradiation method, the impact of the water flow during its movement can also prevent suspended matter in the sewage from adhering to the ultraviolet lamp tube 6 due to static electricity or other reasons, thus preventing it from affecting its light transmittance.

[0039] As the UV lamp tube 6 rotates, the air intake component below it can simultaneously spray disinfectant gas upwards into the wastewater. The rising disinfectant gas will ascend along the lamp tube, forming an air bubble isolation zone around the UV lamp tube 6. This air bubble isolation zone can prevent or reduce the adhesion of inorganic salts in the wastewater to the wall of the UV lamp tube 6, avoiding the formation of an environment conducive to the adhesion of inorganic salt scale on the lamp tube wall surface. This effectively prevents the possibility of inorganic salt scale adhesion from the source, ensuring the light transmittance of the UV lamp tube 6. Furthermore, by utilizing the effect of air bubbles to encapsulate and carry suspended matter in the wastewater to the surface, they can further distance it from the UV lamp tube 6, reducing the chance of it adhering to the lamp tube surface. At the same time, since the air intake component rotates and moves along with the UV lamp tube 6, its disinfectant gas can also come into more thorough contact with the wastewater, achieving a good disinfection effect.

[0040] In this way, the dual sterilization mechanism of ultraviolet irradiation disinfection combined with disinfectant gas disinfection, although different, complements each other and can more comprehensively kill pathogens such as bacteria, viruses, fungi, and protozoa, thereby improving the stability and reliability of the disinfection effect.

[0041] Among them, the disinfection gas can be ozone or chlorine. If ozone is used, its strong oxidizing properties can destroy the cell walls and membranes of microorganisms. Moreover, ozone disinfection has a good effect and no secondary pollution.

[0042] When using chlorine, the release of active substances such as hypochlorous acid destroys the structure of microorganisms, achieving disinfection. Furthermore, ultraviolet (UV) disinfection damages the cell walls and membranes of pathogens, increasing their sensitivity to chlorine and allowing it to penetrate more effectively, further enhancing disinfection. Chlorine disinfection is also cost-effective. Since UV disinfection effectively kills some pathogens, reducing the microbial load in wastewater, the amount of chlorine used in combined disinfection can be reduced, thus lowering the risk of chlorine reacting with organic matter in wastewater to produce disinfection byproducts such as trihalomethanes and haloacetic acids. Some disinfection byproducts may also undergo photolysis under UV light, transforming into less toxic or non-toxic substances, further reducing the harm of disinfection byproducts. Additionally, hypochlorous acid can decompose the microbial film and organic dirt on the surface of the lamp tube, converting them into water-soluble substances that are removed by the water flow.

[0043] Moreover, ultraviolet disinfection has the characteristic of instant sterilization, which can disinfect sewage in a short time, effectively reducing the number of pathogens and providing a good foundation for subsequent chlorine disinfection, thus improving the efficiency of the entire disinfection process. At the same time, chlorine disinfection has a continuous disinfection effect, which can continuously inhibit the regrowth of pathogens during sewage storage and transportation, making up for the lack of continuous disinfection capability of ultraviolet disinfection and ensuring the durability and stability of the disinfection effect. Therefore, chlorine is the preferred disinfection gas.

[0044] In one preferred embodiment, an implementation for driving the eccentric rod 5 to rotate circumferentially within the processing cylinder 1 along its axial direction is provided;

[0045] The bottom of the processing cylinder 1 is rotatably mounted with a second connecting rod 11. The bottom end of the eccentric rod 5 is rotatably mounted at the end of the second connecting rod 11 away from the rotation point. The top of the top cover 2 is fixedly fixed with a fixing rod 3. The fixing rod 3 extends into the outer wall of the processing cylinder 1 and is rotatably mounted with a first connecting rod 4. The top end of the eccentric rod 5 is rotatably mounted at the end of the first connecting rod 4 away from the fixing rod 3. The bottom of the processing cylinder 1 is equipped with a servo motor for driving the second connecting rod 11 to rotate.

[0046] For details, please refer to [link / reference]. Figure 3 and Figure 4 The second connecting rod 11 is driven to rotate by a servo motor. With the support of the first connecting rod 4 above, the eccentric rod 5 can rotate in a circle along the axis of the processing cylinder 1 in a vertical state, thereby achieving the purpose of scanning the ultraviolet lamp tube 6 into a disinfection area.

[0047] In one preferred embodiment, a fixed gear 7 is coaxially fixed to the bottom end of the fixed rod 3, and a transmission gear 8 that meshes with the fixed gear 7 is coaxially fixed to the outer wall of the eccentric rod 5.

[0048] See Figure 3 and Figure 6 Through the meshing action between the two gears, the eccentric rod 5 can rotate in a circular motion while also rotating on its own axis. This causes the ultraviolet lamp tube 6 to rotate on its own axis while revolving around the central axis. In this way, the central revolution expands its irradiation area, while the rotation allows it to work with the sewage to wash away any suspended matter that may be attached to its surface, further ensuring the cleanliness of its surface and thus ensuring light transmittance and disinfection effect.

[0049] In one preferred embodiment, an implementation of an air intake assembly is provided;

[0050] The air intake assembly includes a rotating cylinder 9 fixed near the bottom of the eccentric rod 5. The rotating cylinder 9 divides the eccentric rod 5 into upper and lower sections, and both sections of the eccentric rod 5 are fixedly connected to the outer wall of the rotating cylinder 9. A piston plate 10 is horizontally slidably installed inside the rotating cylinder 9. A piston rod 13 is fixedly inserted through the center of the piston plate 10. The two ends of the piston rod 13 protrude from the outer walls of the two sides of the rotating cylinder 9, and when the rotating cylinder 9 rotates with the eccentric rod 5, the two ends of the piston rod 13 can intermittently contact and abut against the inner wall of the processing cylinder 1. The top of the rotating cylinder 9 on both sides of the eccentric rod 5 is provided with multiple sets of air outlets 12 that can only vent air in one direction. The interior of the eccentric rod 5 is provided with an air intake channel that communicates with the interior of the rotating cylinder 9 and can vent air in one direction. The air intake channel is connected to an external air storage device.

[0051] For details, please refer to [link / reference]. Figure 4 and Figure 9 As can be seen from the above, the eccentric rod 5 will rotate on its own axis while revolving around the central axis, thereby driving the rotating cylinder 9 to rotate together. Therefore, the two ends of the piston rod 13 will intermittently contact and abut against the inner wall of the treatment cylinder 1, thereby driving the piston plate 10 to slide back and forth in the rotating cylinder 9. By utilizing the change in air pressure, the disinfection gas is drawn in from the air inlet channel and discharged from the air outlet 12 at the top of the rotating cylinder 9, so as to achieve the purpose of introducing disinfection gas into the sewage.

[0052] Moreover, as the gas is introduced, the rotating cylinder 9 is also rotating, so the bubbles discharged from the top outlet 12 tend to rise in a spiral. This makes the bubble isolation layer formed by the bubbles more comprehensive, and the protection of the ultraviolet lamp tube 6 is also more comprehensive.

[0053] It is worth mentioning that, since the rotating cylinder 9 revolves around the sun while rotating on its own axis, the ultraviolet lamp tube 6 will collide with the bubbles as they rise in the sewage, causing them to burst. The bursting of the bubbles will further drive away the impurities attached to them.

[0054] In one preferred embodiment, an air intake channel layout is provided;

[0055] The air intake channel includes an air delivery channel 15 located within the eccentric rod 5 and the fixed rod 3, and a one-way valve is provided within the air delivery channel 15. It also includes an intermediate channel 16 located within the first connecting rod 4. A connecting groove 17 is provided at the connection between the fixed rod 3 and the first connecting rod 4 and at the connection between the eccentric rod 5 and the first connecting rod 4. The connecting groove 17 keeps the two air delivery channels 15 and the intermediate channel 16 unobstructed. The end of the fixed rod 3 that extends out of the processing cylinder 1 is connected to an external air storage device.

[0056] For details, please refer to [link / reference]. Figure 6 The opening of the connecting groove 17 allows the gas supply channel 15 to remain connected to the intermediate channel 16 during the relative rotation of the eccentric rod 5, the first connecting rod 4, and the fixed rod 3, thus ensuring the real-time supply of disinfection gas.

[0057] In one preferred embodiment, the air outlets 12 are arranged in a spiral pattern at the top of the rotating cylinder 9, and the inner diameter of the air outlets 12 gradually increases from the inside to the outside.

[0058] See Figure 5 and Figure 8 As can be seen from the above, during the rotation of the rotating cylinder 9, the bubbles are essentially floating in a spiral shape. By arranging the air outlets 12 in a spiral pattern, not only can the range of the bubbles be further expanded, but the bubble isolation layer formed can also be made tighter, thereby further improving the protective effect.

[0059] In one preferred embodiment, a scraper 14 is also installed on the outer wall of the second link 11, and the scraper 14 is designed to be vertical or to be designed with a gradual tilt.

[0060] See Figure 4 and Figure 5 By designing scraper 14, the degree of disturbance to the sewage at the bottom of the treatment cylinder 1 can be further improved. If it is designed at an angle, such as in the shape of a fan blade, it can exert an upward thrust on the water flow during the disturbance process, thereby increasing the degree of disturbance of the sewage in the vertical direction and making the contact between the disinfection gas and the sewage more sufficient.

[0061] In one preferred embodiment, the eccentric rod 5 is located at the midpoint of the radius line of the treatment cylinder 1, and the minimum diameter of the irradiation range of the ultraviolet lamp tube 6 is set to the radius length of the treatment cylinder 1. This allows the eccentric rod 5 to fully cover the entire area inside the treatment cylinder 1 after one rotation, thereby ensuring the uniformity of wastewater disinfection treatment.

[0062] In one preferred embodiment, the eccentric rod 5 is configured as two segments that interlock vertically, and a sealing ring is provided at the joint of the two segments. See [reference needed] Figure 3 and Figure 4The plug-in design of the eccentric rod 5 facilitates the installation and disassembly of the structure on it, making subsequent maintenance or repair more convenient.

[0063] In one preferred embodiment, the bottom of the processing cylinder 1 is provided with a drain pipe, the top of the top cover 2 is connected to a water inlet pipe, and both the drain pipe and the water inlet pipe are provided with solenoid valves. The top of the top cover 2 is also connected to an exhaust pipe.

[0064] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device based on water pollution, comprising a treatment cylinder (1) and a top cover (2) installed on top of it, characterized in that, Also includes: An eccentric rod (5) is set inside the processing cylinder (1) and is arranged in a vertical direction. An ultraviolet lamp (6) is installed on the outer wall of the eccentric rod (5). The eccentric rod (5) can rotate in a circle inside the processing cylinder (1) along the axial direction of the processing cylinder (1) and make the irradiation range of the ultraviolet lamp (6) scan the circumferential area as the disinfection area. An air intake assembly installed on the eccentric rod (5) and located below the ultraviolet lamp tube (6) can spray disinfectant gas upward into the sewage while rotating with the eccentric rod (5), and the floating disinfectant gas can form a bubble isolation zone around the ultraviolet lamp tube (6). The bottom of the processing cylinder (1) is rotatably mounted with a second connecting rod (11), the bottom end of the eccentric rod (5) is rotatably mounted at the end of the second connecting rod (11) away from the rotation point, the top of the top cover (2) is fixedly fixed with a fixing rod (3), the fixing rod (3) extends into the outer wall of the processing cylinder (1) and is rotatably mounted with a first connecting rod (4), and the top end of the eccentric rod (5) is rotatably mounted at the end of the first connecting rod (4) away from the fixing rod (3), and the bottom of the processing cylinder (1) is equipped with a servo motor for driving the second connecting rod (11) to rotate; The air intake assembly includes a rotating cylinder (9) fixed near the bottom of the eccentric rod (5). The rotating cylinder (9) divides the eccentric rod (5) into upper and lower sections, and both sections of the eccentric rod (5) are fixedly connected to the outer wall of the rotating cylinder (9). A piston plate (10) is horizontally slidably installed inside the rotating cylinder (9). A piston rod (13) is fixedly inserted through the center of the piston plate (10). The two ends of the piston rod (13) pass through the outer walls of the two sides of the rotating cylinder (9), and when the rotating cylinder (9) rotates with the eccentric rod (5), the two ends of the piston rod (13) can intermittently contact and abut against the inner wall of the processing cylinder (1). The top of the rotating cylinder (9) located on both sides of the eccentric rod (5) is provided with multiple sets of air outlets (12) that can only vent air in one direction. The interior of the eccentric rod (5) is provided with an air intake channel that communicates with the interior of the rotating cylinder (9) and can vent air in one direction. The air intake channel is connected to an external air storage device. The air intake channel includes an air delivery channel (15) opened in the eccentric rod (5) and the fixed rod (3), and the air delivery channel (15) is provided with a one-way valve. It also includes an intermediate channel (16) opened in the first connecting rod (4). The connection between the fixed rod (3) and the first connecting rod (4) and the connection between the eccentric rod (5) and the first connecting rod (4) are provided with a connecting groove (17). The connecting groove (17) keeps the two air delivery channels (15) and the intermediate channel (16) unobstructed. The end of the fixed rod (3) that extends out of the processing cylinder (1) is connected to an external gas storage device. The bottom end of the fixed rod (3) is coaxially fixed with a fixed gear (7), and the outer wall of the eccentric rod (5) is coaxially fixed with a transmission gear (8) that meshes with the fixed gear (7). The air outlets (12) are arranged in a spiral pattern at the top of the rotating cylinder (9), and the inner diameter of the air outlets (12) gradually increases from the inside to the outside.

2. The wastewater treatment device based on water pollution according to claim 1, characterized in that: The outer wall of the second connecting rod (11) is also equipped with a scraper (14), and the scraper (14) is designed to be vertical or to be designed with a gradual tilt.

3. The wastewater treatment device based on water pollution according to claim 2, characterized in that: The eccentric rod (5) is located at the midpoint of the radius line of the processing cylinder (1).

4. The wastewater treatment device based on water pollution according to any one of claims 1-3, characterized in that: The eccentric rod (5) is configured as two segments that are inserted into each other, and a sealing ring is provided at the joint of the two segments.

5. The wastewater treatment device based on water pollution according to any one of claims 1-3, characterized in that: The bottom of the processing cylinder (1) is provided with a drain pipe, the top of the top cover (2) is connected to a water inlet pipe, and both the drain pipe and the water inlet pipe are provided with solenoid valves. The top of the top cover (2) is also connected to an exhaust pipe.

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