River water pollution treatment device

Abstract

The invention provides a river water pollution treatment device, which belongs to the technical field of environmental pollution abatement, and comprises a pretreatment water diversion cylinder, an adjustable buffer water delivery assembly is arranged on the inner side of the pretreatment water diversion cylinder, and the lower part of one end far away from a water inlet is connected with a sediment trapping cylinder; a conical filter cylinder is arranged on the inner side of the sediment trapping cylinder and is communicated with the rear side of the filter plate in the pretreatment water guide cylinder through an intercommunication guide pipe. The rear side of the filter plate is connected with the bottom of a deep treatment box through a water delivery pump; a detachable sealing top cover and a purified water outflow pipe are arranged at the top of the box. A biological membrane reaction assembly and an ultraviolet lamp disinfection assembly are arranged in the deep treatment box, and the biological membrane reaction assembly depends on a rotatable carrier frame and utilizes attached microorganisms to degrade organic matters and nitrogen and phosphorus nutritive salts, so that efficient purification is realized. According to the invention, stable, efficient and integrated treatment of the polluted water body of the riverway is realized through the synergistic effect of self-adaptive buffer water inlet, efficient sedimentation and filtration, rotary biofilm degradation and ultraviolet disinfection.

Description

Technical Field

[0001] This invention relates to the field of environmental pollution control technology, and more specifically, to a river water pollution treatment device. Background Technology

[0002] Among existing river water pollution control technologies, common treatment methods include physical interception, chemical dosing, and ecological floating islands. However, these methods generally suffer from low treatment efficiency, easy clogging, complex operation and maintenance, or secondary pollution. Especially when facing the impact of rainy season water flow, a surge in floating debris, or drastic fluctuations in water quality, traditional fixed bar screens or static filtration devices are difficult to cope with effectively, often leading to system failure due to debris accumulation. While relying solely on chemical disinfection (such as chlorination) can sterilize, it easily generates harmful byproducts and has no ability to remove nutrients such as nitrogen and phosphorus, making it difficult to meet increasingly stringent surface water discharge standards.

[0003] In recent years, although some integrated equipment has attempted to combine biological treatment with physical filtration, bottlenecks still exist in practical applications, such as uneven water flow distribution, easy clogging of biological carriers, and failure of ultraviolet disinfection units due to high water turbidity. In addition, most devices lack the ability to adaptively adjust to changes in influent load, and cannot ensure both treatment effectiveness and equipment safety and operational stability.

[0004] Therefore, there is an urgent need for a river water pollution treatment device that integrates buffering and diversion, intelligent slag discharge, efficient biochemical degradation and reliable ultraviolet disinfection, so as to achieve continuous, stable and in-depth purification of complex polluted water bodies. Summary of the Invention

[0005] The purpose of this invention is to provide a river water pollution treatment device, which aims to solve the problems mentioned in the background art.

[0006] This invention is implemented as follows: a river water pollution treatment device includes a pretreatment water intake cylinder, one end of which is an inlet. A sediment collection cylinder is connected to the lower part of the end of the pretreatment water intake cylinder away from its inlet, and a cleaning port is provided at the bottom of the sediment collection cylinder. An adjustable buffer water conveyance assembly is installed inside the pretreatment water intake cylinder. A conical filter cylinder is fixed inside the sediment collection cylinder. A filter plate is fixed inside the pretreatment water intake cylinder away from its inlet. The outer space of the conical filter cylinder is connected to the space of the filter plate away from the adjustable buffer water conveyance assembly via an interconnecting conduit. A deep treatment tank is fixed to the upper side of the water tank by a fixing frame. The space on the side of the filter plate away from the adjustable buffer water supply component is connected to the bottom of the deep treatment tank through a water supply pipe. A water pump is installed on the water supply pipe. A sealed top cover is detachably installed on the top of the deep treatment tank, and a clean water outlet pipe is installed on the sealed top cover. A deep treatment mechanism is installed inside the deep treatment tank. The deep treatment mechanism includes a biofilm reaction component and an ultraviolet lamp disinfection component. The biofilm reaction component relies on a rotatable carrier frame and degrades organic pollutants and nitrogen and phosphorus nutrients in the water through the microbial community attached to the carrier surface.

[0007] Optionally, the adjustable buffer water supply assembly includes a main shaft disposed inside a pretreatment water inlet cylinder, an installation sleeve slidably disposed on the main shaft, a spiral blade fixed on the installation sleeve, an elastic element for elastically supporting the installation sleeve sleeve on the main shaft, a positioning telescopic cylinder fixed on the inner wall of the pretreatment water inlet cylinder, a positioning ring fixedly connected to the end of the telescopic spindle of the positioning telescopic cylinder through a connecting rod, a positioning rod slidably disposed on the positioning ring, the positioning rod being fixedly connected to a second support ring rotatably mounted on the installation sleeve, and a main drive motor connected to the main shaft drive being fixed to the end of the pretreatment water inlet cylinder.

[0008] Optionally, a first stop ring is fixed at one end of the main shaft near the inlet of the pretreatment water inlet cylinder, and a second stop ring is fixed on the main shaft between the filter plate and the mounting sleeve. A protruding rib that is slidably connected to the mounting sleeve is fixed on the main shaft between the first stop ring and the second stop ring. The elastic element is sleeved on the main shaft between the first stop ring and the mounting sleeve, and the elastic element is a spring.

[0009] Optionally, a first support ring is rotatably mounted on the outer side of the first stop ring, and multiple first support rods are fixedly distributed circumferentially on the outer side of the first support ring. The outer ends of the first support rods are fixedly connected to the inner wall of the pretreatment water inlet cylinder, and a separation filter is fixed between two adjacent first support rods.

[0010] Optionally, buoyancy bladders are fixed to both sides of the pretreatment water intake tube via an assembly frame. The buoyancy bladders are fixed to the assembly frame via reinforcing trusses. A control valve is provided at the bottom of the buoyancy bladders. Lifting lugs are fixed to the top of the pretreatment water intake tube and the buoyancy bladders.

[0011] Optionally, the aperture of the filter plate is smaller than that of the conical filter cylinder. The conical filter cylinder adopts a conical structure that is larger at the top and smaller at the bottom. Multiple disturbance scrapers are fixedly distributed circumferentially on the side of the filter plate near the adjustable buffer water conveying component on the main shaft.

[0012] Optionally, a tapered guide plate with a downward inclination in the middle is fixed to the upper inner side of the sediment collection cylinder. A secondary shaft is provided perpendicular to the main shaft on the upper inner side of the sediment collection cylinder. A third support ring is rotatably mounted on the secondary shaft. Multiple second support rods are fixedly distributed circumferentially on the outer side of the third support ring. The outer ends of the second support rods are fixedly connected to the inner wall of the sediment collection cylinder. An anti-reverse blade that mates with the through hole in the middle of the tapered guide plate is fixed to the lower end of the secondary shaft. A first bevel gear is fixed to the upper end of the secondary shaft. A second bevel gear that meshes with the first bevel gear is fixed to the main shaft.

[0013] Optionally, the biofilm reaction assembly includes an auxiliary drive motor located on the upper inner side of the deep treatment chamber. Multiple third support rods are circumferentially fixed to the outer side of the auxiliary drive motor, with the outer ends of the third support rods fixedly connected to the inner wall of the deep treatment chamber. The output end of the auxiliary drive motor is fixedly connected to a drive shaft, and the lower end of the drive shaft is rotatably connected to a rectifier plate located on the lower inner side of the deep treatment chamber. The outer wall of the rectifier plate is fixedly connected to the inner wall of the deep treatment chamber. Multiple carrier frames are circumferentially fixed to the drive shaft, and carrier boxes are detachably installed on the carrier frames. The carrier boxes are filled with graphene / polyurethane composite sponge carriers with a porosity of 85%-92%, and their surfaces are loaded with a composite microbial community of nitrifying and denitrifying bacteria.

[0014] Optionally, the ultraviolet lamp disinfection assembly includes a conical support mesh plate fixed to the top of the sealed top cover, a purified water outlet pipe connected to the middle of the upper space of the conical support mesh plate, and the conical support mesh plate is a conical structure protruding downward in the middle; multiple ultraviolet lamps are circumferentially distributed on the lower side of the conical support mesh plate, and the ultraviolet lamps are low-pressure mercury ultraviolet lamps with a wavelength of 254nm.

[0015] Optionally, a lifting support frame is fixed to the top of the sealed top cover, and an opening telescopic cylinder is fixed to the lower side of one end of the lifting support frame. The lower end of the opening telescopic cylinder is fixed to the pretreatment water inlet cylinder.

[0016] The river water pollution treatment device provided by this invention has the following beneficial effects: The main drive motor drives the spiral blades to rotate, achieving water flow propulsion and adaptive buffering. Combined with the pressure relief protection of the elastic components and the flexible adjustment of the spiral blade stroke by the positioning telescopic cylinder, it effectively copes with fluctuations in river water quality and impacts from debris, improving operational reliability. The filter plates, conical filter cartridges, and interconnected conduits work together to achieve efficient interception and sedimentation separation of impurities (separating colloidal pollutants and heavy particulate matter from the water), ensuring that the water pump stably draws clean water. The deep treatment tank integrates a rotatable biofilm reactor and an ultraviolet lamp disinfection unit. It can deeply degrade organic matter and nitrogen and phosphorus pollutants through the composite bacteria loaded on the carrier frame, and can also use ultraviolet lamps to efficiently sterilize and disinfect the water, resulting in comprehensive treatment effects. The detachable sealed top cover facilitates maintenance. The overall device has a compact structure, high degree of automation, and strong adaptability, making it suitable for the treatment of complex and ever-changing river water environments.

[0017] In summary, this invention achieves stable, efficient, and integrated treatment of polluted river water through the synergistic effects of adaptive buffering influent, high-efficiency sedimentation filtration, rotating biofilm degradation, and ultraviolet disinfection, while also possessing the beneficial effects of strong shock resistance, convenient maintenance, and excellent effluent quality.

[0018] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0020] Figure 1 A three-dimensional structural schematic diagram of the river water pollution treatment device provided in an embodiment of the present invention; Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 An isometric view of a river water pollution treatment device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal components of the pretreatment water intake cylinder in the river water pollution treatment device provided in an embodiment of the present invention; Figure 5 for Figure 4 Another perspective structural diagram; Figure 6 A schematic diagram of the internal components (with a sealed top cover) of the deep treatment tank in the river water pollution treatment device provided in an embodiment of the present invention; Figure 7 for Figure 6 Another perspective structural diagram.

[0021] In the diagram: 1-Buoyancy bag, 2-Lifting lug, 3-Reinforcing truss, 4-Assembly frame, 5-Sediment collection cylinder, 6-Interconnecting conduit, 7-Main drive motor, 8-Fixing frame, 9-Deep treatment box, 10-Clean water outlet pipe, 11-Sealed top cover, 12-Lifting support frame, 13-Opening telescopic cylinder, 14-Pretreatment water inlet cylinder, 15-Cleaning port, 16-Control valve, 17-First support ring, 18-Separation filter grid, 19-First support rod, 20-First stop ring, 21-Elastic element, 22-Main shaft, 23-Second support ring, 24-Helical blade, 25-Installation sleeve, 26 - First bevel gear, 27- Second support rod, 28- Third support ring, 29- Secondary shaft, 30- Anti-reverse blade, 31- Conical guide plate, 32- Conical filter cartridge, 33- Disturbance scraper, 34- Filter plate, 35- Water pump, 36- Water pipe, 37- Protruding ridge, 38- Positioning rod, 39- Positioning ring, 40- Connecting rod, 41- Positioning telescopic cylinder, 42- Second bevel gear, 43- Second stop ring, 44- Third support rod, 45- Auxiliary drive motor, 46- Carrier frame, 47- Carrier box, 48- Drive shaft, 49- Rectifier plate, 50- Conical bearing mesh plate, 51- Ultraviolet lamp. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] The following is a detailed description of a river water pollution treatment device according to an embodiment of the present invention, with reference to the accompanying drawings.

[0025] like Figure 1-7 As shown, a river water pollution treatment device provided in one embodiment of the present invention includes a pretreatment water intake tube 14, one end of which is a water inlet, and the lower part of the end of the pretreatment water intake tube 14 away from its water inlet is connected to a sediment collection tube 5, and the bottom of the sediment collection tube 5 is provided with a cleaning port 15.

[0026] An adjustable buffer water conveying assembly is installed inside the pretreatment water intake cylinder 14. The adjustable buffer water conveying assembly includes a main shaft 22 located inside the pretreatment water intake cylinder 14. An installation sleeve 25 is slidably mounted on the main shaft 22. A spiral blade 24 is fixed on the installation sleeve 25. An elastic element 21 for elastically supporting the installation sleeve 25 is sleeved on the main shaft 22. A positioning telescopic cylinder 41 is also fixed on the inner wall of the pretreatment water intake cylinder 14. A positioning ring 39 is fixedly connected to the telescopic spindle end of the positioning telescopic cylinder 41 through a connecting rod 40. A positioning rod 38 is slidably mounted on the positioning ring 39. The positioning rod 38 is also fixedly connected to a second support ring 23 rotatably mounted on the installation sleeve 25. A main drive motor 7 that is connected to the main shaft 22 is also fixed to the end of the pretreatment water intake cylinder 14.

[0027] A conical filter cylinder 32 is fixed inside the sediment collection cylinder 5, and a filter plate 34 is fixed inside the pretreatment water inlet cylinder 14 away from its inlet. The outer space of the conical filter cylinder 32 is also connected to the space of the filter plate 34 away from the spiral blade 24 through the interconnecting conduit 6.

[0028] It also includes a deep treatment tank 9, which is fixed to the upper side of the pretreatment water inlet cylinder 14 by a fixing frame 8. The space on the side of the filter plate 34 away from the spiral blade 24 is also connected to the bottom of the deep treatment tank 9 through a water supply pipe 36, and a water pump 35 is installed on the water supply pipe 36. A sealing top cover 11 is detachably installed on the top of the deep treatment tank 9, and a clean water outlet pipe 10 is installed on the sealing top cover 11.

[0029] The deep treatment tank 9 is equipped with a deep treatment mechanism, which includes a biofilm reaction component and an ultraviolet lamp disinfection component. The biofilm reaction component relies on a rotatable carrier frame 46 to degrade organic pollutants and nitrogen and phosphorus nutrients in the water through the microbial community attached to the carrier surface.

[0030] In this embodiment of the invention, the main drive motor 7 drives the main shaft 22 to rotate, thereby causing the spiral blades 24 and the mounting sleeve 25 to rotate in unison. The elastic element 21 provides elastic support for the entire structure formed by the spiral blades 24 and the mounting sleeve 25. When the resistance on the spiral blades 24 increases, the elastic element 21 is compressed, and the spiral blades 24 move, which can provide pressure relief and buffering. By controlling the extension and retraction of the positioning telescopic cylinder 41, the position of the positioning ring 39 can be changed, thereby adjusting the position of the positioning ring 39 blocking and limiting the positioning rod 38, thus adjusting the movement limit position of the spiral blades 24, which is flexible in application. The filter plate 34 and the conical filter cylinder 32 overlap The configuration and interconnection layout of the connecting pipes 6 allow impurities in the water to settle within the conical filter cartridge 32 (separating colloidal pollutants and heavy particulate matter from the water), while ensuring that the water pump 35 can reliably extract the filtered water. Through the biofilm reaction component and ultraviolet disinfection component in the deep treatment tank 9, the biofilm reaction component, relying on the rotatable carrier frame 46, degrades organic pollutants and nitrogen and phosphorus nutrients in the water through the microbial community attached to the carrier surface. The ultraviolet disinfection component can disinfect the water. The sealed top cover 11 can be disassembled for easy maintenance. Finally, the treated water is discharged through the purified water outlet pipe 10.

[0031] In one embodiment, such as Figure 1-5 As shown, the pretreatment water inlet cylinder 14 is horizontal and open at one end. A first stop ring 20 is fixed at the end of the main shaft 22 near the water inlet of the pretreatment water inlet cylinder 14. A second stop ring 43 is also fixed on the pretreatment water inlet cylinder 14 between the filter plate 34 and the mounting sleeve 25. A protruding rib 37 that is slidably connected to the mounting sleeve 25 is fixed on the main shaft 22 between the first stop ring 20 and the second stop ring 43. The protruding rib 37 makes the mounting sleeve 25 rotate uniformly with the main shaft 22.

[0032] The elastic element 21 is a spring, and the elastic element 21 is sleeved on the main shaft 22 between the first stop ring 20 and the mounting sleeve 25.

[0033] The positioning rod 38 adopts a T-shaped structure to ensure the positioning ring 39 limits the positioning rod 38; the cylinder body of the positioning telescopic cylinder 41 can be fixedly connected to the inner wall of the pretreatment water inlet cylinder 14.

[0034] A first support ring 17 is rotatably mounted on the outer side of the first stop ring 20. Multiple first support rods 19 are fixedly distributed circumferentially on the outer side of the first support ring 17. The outer end of the first support rod 19 is fixedly connected to the inner wall of the pretreatment water inlet cylinder 14. A separation filter 18 is also fixed between two adjacent first support rods 19. Large floating objects can be intercepted by the separation filter 18 to avoid affecting the operation of the device.

[0035] In one optional embodiment, to improve the reliability and adaptability of the river water pollution treatment device, the structure of the pretreatment water intake cylinder 14 is optimized: the separation filter 18 adopts a multi-layer composite stainless steel mesh structure, and through a gradient aperture design, it achieves graded interception of floating objects, effectively preventing large particles of debris (such as plastic bags and branches); the outer surface of the separation filter 18 is coated with a superhydrophobic nano-coating, which significantly reduces the adhesion rate of organic matter, and integrates a micro piezoelectric vibrator, driven by the vibration energy of the main drive motor 7, to automatically shake off the attached matter and reduce the frequency of manual cleaning. The elastic element 21 is a high-damping memory alloy spring with a stiffness coefficient of 60±10N / mm. Through precise control of the spring pre-compression (2-3mm), the spiral blade 24 automatically releases pressure and moves when encountering resistance of 10-15N, avoiding equipment overload.

[0036] In one embodiment, such as Figure 1-2 As shown, the pretreatment water intake tube 14 is also connected and fixed to both sides by an assembly frame 4. The buoyancy 1 is also fixedly connected to the assembly frame 4 by a reinforcing truss 3 to improve the stability of the buoyancy 1. The buoyancy 1 is not limited. The bottom of the buoyancy 1 is also provided with a control valve 16. By controlling the water inlet and outlet of the control valve 16, the buoyancy 1 can be adjusted, thereby changing the distance of the pretreatment water intake tube 14 relative to the water surface.

[0037] Preferably, the top of the pretreatment water inlet cylinder 14 and the buoyancy tank 1 is also fixed with a lifting lug 2, which facilitates the suspension of the device, thereby enabling the periodic cleaning of the sludge collected in the sediment collection cylinder 5 through the cleaning port 15, and the maintenance of the components in the deep treatment tank 9. A propeller (not shown) is installed on the buoyancy tank 1, which can adjust the position of the device, that is, change the treatment position periodically.

[0038] It should be noted that a retractable support frame (not shown) can also be installed at the bottom of the pretreatment water intake cylinder 14, with the lower end of the retractable support frame directly fixed to the bottom of the river channel, thereby achieving support and adjustment for the device.

[0039] In one optional embodiment, to improve the environmental adaptability and intelligent operation and maintenance level of the river water pollution treatment device, the buoyancy adjustment system is optimized: the buoyancy bladder 1 adopts a double-layer composite elastomer structure, the outer layer is an anti-ultraviolet polyurethane coating (thickness 2.0±0.2mm, light transmittance ≤5% to inhibit algae attachment), and the inner layer is a high airtight butyl rubber (thickness 1.5±0.1mm, airtightness ≤0.01mL / (m²·s)). The bladder body integrates an independent air chamber and a pressure sensor, and the water inlet / outlet is regulated by the control valve 16; the control valve 16 and the water level monitoring module (not shown) at the top of the pretreatment water intake tube 14 form a closed-loop control system. When the river water level fluctuation is detected to be ±3cm, the volume of the buoyancy bladder 1 is automatically adjusted (adjustment range ±15%), so that the pretreatment water intake tube 14 is always kept at a working depth of 12±2cm below the water surface, effectively coping with river conditions with water level changes ranging from 0-2.5m.

[0040] In one embodiment, such as Figure 3-5 As shown, the aperture of the filter plate 34 is smaller than that of the conical filter cylinder 32, allowing the water pump 35 to obtain more water through the interconnecting conduit 6. The conical filter cylinder 32 adopts a conical structure that is larger at the top and smaller at the bottom. The upper end of the conical filter cylinder 32 is fixedly connected to the inner wall of the sediment collection cylinder 5, and the lower end of the conical filter cylinder 32 is fixedly connected to the inner bottom of the sediment collection cylinder 5, which facilitates the removal of collected dirt through the cleaning port 15.

[0041] On the side of the filter plate 34 near the mounting sleeve 25, a plurality of disturbance scrapers 33 are circumferentially fixed on the main shaft 22. The disturbance scrapers 33 are used to scrape off dirt from the surface of the filter plate 34 and push the dirt toward the conical filter cylinder 32. The structure of the disturbance scrapers 33 is not limited and any publicly available technology can be used.

[0042] In one optional embodiment, a tapered guide plate 31 with a downward inclination in the middle is fixed to the upper inner side of the sediment collection cylinder 5. A secondary shaft 29 is provided on the upper inner side of the sediment collection cylinder 5 perpendicular to the main shaft 22. A third support ring 28 is rotatably mounted on the secondary shaft 29. Multiple second support rods 27 are circumferentially distributed on the outer side of the third support ring 28. The outer ends of the second support rods 27 are fixedly connected to the inner wall of the sediment collection cylinder 5. An anti-backflow blade 30 is fixed to the lower end of the secondary shaft 29, which cooperates with the through hole in the middle of the tapered guide plate 31 and is used to push the sludge downward. The anti-backflow blade 30 is not limited or described in detail, and conventional arrangement is sufficient. By combining the anti-backflow blade 30 and the tapered guide plate 31, the backflow of sludge can be prevented, and the reliability is high. A first bevel gear 26 is fixed to the upper end of the secondary shaft 29, and a second bevel gear 42 that meshes with the first bevel gear 26 is fixed to the main shaft 22. In this way, when the main shaft 22 rotates, the secondary shaft 29 can rotate synchronously.

[0043] In one optional embodiment, to improve the solid-liquid separation efficiency and self-cleaning ability of the river water pollution treatment device, the filter plate 34, the conical filter cylinder 32 and the supporting structure are optimized: the pore size of the filter plate 34 is precisely set to 0.8±0.2mm (preferably 0.6-1.0mm), and its surface is coated with a nano-titanium dioxide hydrophobic coating with a thickness of 0.15-0.25μm (contact angle ≥150°), which significantly reduces the adhesion rate of organic pollutants and avoids clogging by fine suspended matter; The conical filter cartridge 32 adopts a 35° cone angle structure (upper inner diameter 150mm, lower inner diameter 50mm), and the inner wall is sprayed with a superhydrophobic fluorocarbon coating (adhesion ≥10MPa), which allows settled dirt to quickly gather to the bottom under gravity, improving the cleaning efficiency through the cleaning port 15; the filter plate 34 has 6 circumferentially fixed agitator scrapers 33 on the side near the mounting sleeve 25. The agitator scrapers 33 are made of arc-shaped stainless steel substrate (thickness 3mm) covered with a polyurethane wear-resistant layer (hardness Shore). The gap between the filter plate 34 and the filter 85 is precisely controlled at 0.8±0.1mm. As the main shaft 22 rotates, it generates radial disturbance (rotation speed 15-30rpm), which efficiently scrapes away dirt from the surface of the filter plate 34 and pushes it directionally to the inner wall of the conical filter cylinder 32. A conical guide plate 31 is fixed on the upper part of the inner side of the sediment collection cylinder 5. Its inclination angle is 30° (angle with the horizontal plane), and the diameter of the through hole in the middle is 40mm, which is strictly aligned with the rotation axis of the anti-backflow blade 30. The anti-backflow blade 30 adopts a three-bladed propeller structure (blade inclination angle 25°, thickness 2.5mm), which is driven to rotate by the secondary shaft 29 (synchronous speed ratio with the main shaft 22 1:1). The blade edge is provided with 0.5mm micro-tooth pattern, which forms a "guide-push" synergistic effect with the conical guide plate 31, which reduces the downward flow resistance of dirt by 50% and effectively prevents backflow.

[0044] In one embodiment, such as Figure 1-2 As shown in 6-7, the connection between the sealing top cover 11 and the deep treatment box 9 can be achieved using existing technology. The top of the sealing top cover 11 is fixed with a lifting support frame 12, and a cover opening telescopic cylinder 13 is fixed to the lower side of one end of the lifting support frame 12. The lower end of the cover opening telescopic cylinder 13 is fixed to the pretreatment water inlet cylinder 14. The opening and closing of the sealing top cover 11 can be achieved by controlling the extension and retraction of the cover opening telescopic cylinder 13.

[0045] The biofilm reaction assembly includes an auxiliary drive motor 45 located on the upper inner side of the deep treatment chamber 9. Multiple third support rods 44 are circumferentially fixed to the outer side of the auxiliary drive motor 45. The outer ends of the third support rods 44 are fixedly connected to the inner wall of the deep treatment chamber 9. The output end of the auxiliary drive motor 45 is fixedly connected to a drive shaft 48. The lower end of the drive shaft 48 is rotatably connected to a rectifier plate 49 located on the lower inner side of the deep treatment chamber 9. The outer wall of the rectifier plate 49 is fixedly connected to the inner wall of the deep treatment chamber 9. Multiple carrier frames 46 are circumferentially fixed to the drive shaft 48. Carrier boxes 47 are detachably installed on the carrier frames 46. The carrier boxes 47 are filled with graphene / polyurethane composite sponge carriers with a porosity of 85%-92%, and their surfaces are loaded with a composite microbial community of nitrifying and denitrifying bacteria.

[0046] Preferably, the carrier box 47 is connected and fixed to the carrier frame 46 by a snap-fit ​​structure, which facilitates disassembly and replacement.

[0047] The ultraviolet (UV) disinfection assembly includes a conical support mesh plate 50 fixed to the top of the sealed top cover 11. The purified water outlet pipe 10 is connected to the middle of the upper space of the conical support mesh plate 50, and the conical support mesh plate 50 is a conical structure with a downward protrusion in the middle. Multiple UV lamps 51 are circumferentially distributed on the lower side of the conical support mesh plate 50. Through the combination of the conical support mesh plate 50 and the UV lamps 51, the effluent can be disinfected. Specifically, its core principle is to use ultraviolet light (especially UVC with a wavelength of 254nm) to destroy the DNA / RNA structure of microorganisms (bacteria, viruses, protozoa, etc.), causing them to lose their reproductive ability, thereby achieving inactivation.

[0048] In an optional embodiment, to improve the biodegradation efficiency and UV disinfection reliability of the river water pollution treatment device, the biofilm reaction component and UV disinfection component of the deep treatment box 9 are optimized: the carrier box 47 uses a graphene-reinforced polyurethane composite sponge carrier (graphene content 3.5wt%, porosity precisely controlled at 88±2%), which is solidified by freeze cross-linking to form a three-dimensional porous network structure (specific surface area ≥1200m² / g). The nitrifying bacteria and denitrifying bacteria composite bacterial community loaded on its surface are mixed in a 1:1.8 ratio, and the attachment density reaches 1.2×10⁻⁶ after immobilization culture. 8 The system achieves high-efficiency treatment with ammonia nitrogen removal rate ≥92% and total phosphorus removal rate ≥88% at CFU / cm². The carrier box 47 is connected to the carrier frame 46 through a magnetic snap-fit ​​structure (snap-fit ​​torque 3.5±0.3N·m), which shortens the disassembly time. The inner wall of the carrier box 47 is provided with a microchannel array (pore diameter 0.2-0.5mm), which generates periodic micro-vibration under the drive of the auxiliary drive motor 45 (speed 12-25rpm), effectively inhibiting excessive biofilm blockage and promoting nutrient diffusion.

[0049] In the ultraviolet lamp disinfection assembly, the conical support mesh plate 50 is made of high-transmittance quartz glass with a central cone angle of 40°. Six low-pressure mercury ultraviolet lamps 51 (wavelength 254nm, UVC output power 50W / lamp) are equidistantly installed on the lower side. The outer wall of the lamp tube is covered with a self-cleaning fluorinated coating (contact angle ≥140°) and an internal reflector (aluminum reflectivity ≥92%) is added to improve the ultraviolet utilization rate by 25%. A dynamic flow regulating valve is set at the connection between the purified water outlet pipe 10 and the upper space of the conical support mesh plate 50 to ensure that the water flow velocity is stable at 0.3-0.6m / s, so that the UVC dose accurately reaches 45±5mJ / cm², achieving complete inactivation of bacteria (inactivation rate ≥99.9%) and viruses (inactivation rate ≥99.8%).

[0050] The deep treatment tank 9 is also equipped with a turbidity sensor and an ultraviolet intensity sensor. The signals of the two sensors are connected to the central controller. When the turbidity of the effluent is detected to be higher than the set threshold, the power of the ultraviolet lamp 51 is automatically increased or the irradiation time is extended to ensure the disinfection effect.

[0051] The above embodiments of the present invention provide a river water pollution treatment device, the working principle of which is as follows: The device floats on the water surface as a whole through the buoyancy bladder 1. The buoyancy bladder 1 is connected to the pretreatment water inlet tube 14 through the assembly frame 4, and the structural stability is enhanced by the reinforcing truss 3. The depth of the pretreatment water inlet tube 14 relative to the water surface can be adjusted by adjusting the water volume in the buoyancy bladder 1 through the control valve 16. The lifting lug 2 facilitates the hoisting and maintenance of the whole machine.

[0052] Water enters through the inlet of the pretreatment water inlet cylinder 14 and first passes through the separation filter 18 between the first support rods 19 to intercept large floating objects. The main drive motor 7 drives the main shaft 22 to rotate, which in turn drives the mounting sleeve 25 and the spiral blades 24 to rotate synchronously, pushing the water flow and generating buffer disturbances. The elastic element 21 is sleeved on the main shaft 22 and is located between the first stop ring 20 and the mounting sleeve 25. When the spiral blades 24 are obstructed, the elastic element 21 can be compressed to achieve axial movement and pressure relief. The positioning telescopic cylinder 41 drives the positioning ring 39 to move axially through the connecting rod 40. In conjunction with the connection between the T-shaped rod 38 and the second support ring 23, the maximum movement position of the spiral blades 24 is adjusted to achieve adaptive operation.

[0053] After being pushed by the spiral blades 24, the water passes through the filter plate 34 and enters its downstream space. The filter plate 34 is provided with a disturbance scraper 33 on the side near the spiral blades 24. As the main shaft 22 rotates, it scrapes off the dirt on the surface of the filter plate 34 and pushes it to the sediment collection cylinder 5. The sediment collection cylinder 5 is provided with a conical filter cylinder 32 that is larger at the top and smaller at the bottom. The dirt settles and accumulates on the outside of the conical filter cylinder 32. The conical guide plate 31 is inclinedly set on the upper part of the sediment collection cylinder 5. The secondary shaft 29 is driven by the first conical gear 26 on the main shaft 22 through the second bevel gear 42, which drives the anti-reverse blade 30 to rotate, pushing the dirt down along the conical guide plate 31 and preventing backflow. The settled clean water flows into the downstream space of the filter plate 34 through the interconnecting conduit 6.

[0054] The water pump 35 pumps the filtered water to the bottom of the deep treatment tank 9 through the water pipe 36; the deep treatment tank 9 is equipped with a biofilm reaction component and an ultraviolet lamp disinfection component; the auxiliary drive motor 45 drives the transmission shaft 48 to rotate, which drives multiple carrier frames 46 and detachable carrier boxes 47 to rotate synchronously; the carrier box 47 is filled with a high porosity graphene / polyurethane composite sponge carrier, which loads a complex of nitrifying and denitrifying bacteria to efficiently degrade organic matter and nitrogen and phosphorus nutrients in the water; the rectifier plate 49 is fixed to the inner wall of the deep treatment tank 9 to stabilize the water flow distribution.

[0055] The treated water rises to the top of the deep treatment tank 9 and passes under the conical support mesh plate 50. Multiple ultraviolet lamps 51 are circumferentially distributed on the lower side of the conical support mesh plate 50 to irradiate the flowing water with UVC band, destroying the DNA / RNA structure of microorganisms to achieve disinfection and inactivation. The disinfected water is discharged through the clean water outlet pipe 10.

[0056] In addition, the sealed top cover 11 is automatically opened and closed by the lifting support frame 12 and the opening telescopic cylinder 13, which facilitates the maintenance of internal components; the cleaning port 15 is located at the bottom of the sediment collection cylinder 5 for periodic sludge discharge; the entire device can be combined with the propeller or the bottom telescopic support frame to achieve position adjustment or fixed installation, which is suitable for different river working conditions.

[0057] In summary, this invention achieves adaptive, continuous, and in-depth purification of polluted river water through the synergistic integration of pretreatment buffer filtration, directional collection of sediment, efficient biofilm degradation, and ultraviolet disinfection of flowing water. It also has the advantages of compact structure, convenient maintenance, stable operation, and thorough disinfection.

[0058] There are no specific limitations on the control, model and circuit connection of each component, which can be flexibly set in actual application.

[0059] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0060] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0061] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A river water pollution treatment device, comprising a pretreatment water intake cylinder (14), one end of which is an inlet, and a sediment collection cylinder (5) connected to the lower part of the end of the pretreatment water intake cylinder (14) away from its inlet, the bottom of which is provided with a cleaning port (15), characterized in that, An adjustable buffer water delivery assembly is installed on the inner side of the pretreatment water inlet tube (14); A conical filter cylinder (32) is fixed on the inner side of the sediment collection cylinder (5), and a filter plate (34) is fixed on the inner side of the pretreatment water inlet cylinder (14) away from its inlet. The outer space of the conical filter cylinder (32) is connected to the space on the side of the filter plate (34) away from the adjustable buffer water conveying assembly through the interconnecting conduit (6). The pretreatment water inlet tube (14) is fixed to the upper side by a fixing frame (8) and the deep treatment box (9) is fixed to the upper side by a fixing frame (8). The space on the side of the filter plate (34) away from the adjustable buffer water supply component is connected to the bottom of the deep treatment box (9) through a water supply pipe (36). A water pump (35) is installed on the water supply pipe (36). A sealing top cover (11) is detachably installed on the top of the deep treatment box (9). A clean water outlet pipe (10) is installed on the sealing top cover (11). The deep treatment box (9) is equipped with a deep treatment mechanism on its inner side. The deep treatment mechanism includes a biofilm reaction component and an ultraviolet lamp disinfection component. The biofilm reaction component relies on a rotatable carrier frame (46) to degrade organic pollutants and nitrogen and phosphorus nutrients in the water through the microbial community attached to the carrier surface.

2. The river water pollution treatment device according to claim 1, characterized in that, The adjustable buffer water conveying assembly includes a main shaft (22) disposed in a pretreatment water inlet cylinder (14), an installation sleeve (25) slidably disposed on the main shaft (22), a spiral blade (24) fixed on the installation sleeve (25), and an elastic element (21) sleeved on the main shaft (22) for elastic support of the installation sleeve (25). A positioning telescopic cylinder (41) is fixed on the inner wall of the pretreatment water inlet cylinder (14). The telescopic spindle end of the positioning telescopic cylinder (41) is fixedly connected to a positioning ring (39) via a connecting rod (40). A positioning rod (38) is slidably provided on the positioning ring (39). The positioning rod (38) is fixedly connected to a second support ring (23) rotatably installed on the mounting sleeve (25). The end of the pretreatment water inlet cylinder (14) is fixed with a main drive motor (7) that is connected to the main shaft (22).

3. The river water pollution treatment device according to claim 2, characterized in that, A first stop ring (20) is fixed at one end of the main shaft (22) near the inlet of the pretreatment water inlet cylinder (14), and a second stop ring (43) is fixed on the main shaft (22) between the filter plate (34) and the mounting sleeve (25). A protruding rib (37) that is slidably connected to the mounting sleeve (25) is fixed on the main shaft (22) between the first stop ring (20) and the second stop ring (43); The elastic element (21) is sleeved on the main shaft (22) between the first stop ring (20) and the mounting sleeve (25), and the elastic element (21) is a spring.

4. The river water pollution treatment device according to claim 3, characterized in that, A first support ring (17) is rotatably installed on the outer side of the first stop ring (20). Multiple first support rods (19) are fixedly distributed around the outer side of the first support ring (17). The outer end of the first support rod (19) is fixedly connected to the inner wall of the pretreatment water inlet cylinder (14). A separation filter grid (18) is fixed between two adjacent first support rods (19).

5. The river water pollution treatment device according to claim 1, characterized in that, The two sides of the pretreatment water inlet tube (14) are connected and fixed with buoyancy bladders (1) through the assembly frame (4), and the buoyancy bladders (1) are fixedly connected to the assembly frame (4) through the reinforcing truss (3). The bottom of the buoyancy bladder (1) is provided with a control valve (16). The top of the pretreatment water inlet tube (14) and the buoyancy bag (1) are fixed with lifting lugs (2).

6. The river water pollution treatment device according to any one of claims 1-5, characterized in that, The aperture of the filter plate (34) is smaller than that of the conical filter cylinder (32), and the conical filter cylinder (32) adopts a conical structure that is larger at the top and smaller at the bottom; The filter plate (34) has multiple disturbance scrapers (33) fixed circumferentially distributed on the side near the adjustable buffer water conveying assembly on the main shaft (22).

7. The river water pollution treatment device according to claim 6, characterized in that, The upper inner side of the sediment collection cylinder (5) is fixed with a tapered guide plate (31) that slopes downward in the middle. The upper inner side of the sediment collection cylinder (5) is provided with a secondary shaft (29) perpendicular to the main shaft (22). A third support ring (28) is rotatably installed on the secondary shaft (29). Multiple second support rods (27) are fixedly distributed around the outer side of the third support ring (28). The outer ends of the second support rods (27) are fixedly connected to the inner wall of the sediment collection cylinder (5). The lower end of the subshaft (29) is fixed with an anti-reverse blade (30) that cooperates with the through hole in the middle of the tapered guide plate (31). The upper end of the subshaft (29) is fixed with a first bevel gear (26). The main shaft (22) is fixed with a second bevel gear (42) that meshes with the first bevel gear (26).

8. The river water pollution treatment device according to any one of claims 1-5, characterized in that, The biofilm reaction assembly includes an auxiliary drive motor (45) located on the upper inner side of the deep processing box (9). Multiple third support rods (44) are fixedly distributed around the outer side of the auxiliary drive motor (45). The outer ends of the third support rods (44) are fixedly connected to the inner wall of the deep processing box (9). The output end of the auxiliary drive motor (45) is fixedly connected to the drive shaft (48), the lower end of the drive shaft (48) is rotatably connected to the rectifier plate (49) provided on the lower inner side of the depth processing box (9), and the outer wall of the rectifier plate (49) is fixedly connected to the inner wall of the depth processing box (9). Multiple carrier frames (46) are circumferentially distributed and fixed on the drive shaft (48), and a carrier box (47) is detachably installed on the carrier frame (46). The carrier box (47) is filled with a graphene / polyurethane composite sponge carrier with a porosity of 85%-92% and a surface loaded with a composite microbial community of nitrifying and denitrifying bacteria.

9. The river water pollution treatment device according to claim 8, characterized in that, The ultraviolet lamp disinfection assembly includes a conical support mesh plate (50) fixed inside the top of the sealed top cover (11), and the purified water outlet pipe (10) is connected to the middle of the upper space of the conical support mesh plate (50). The conical support mesh plate (50) is a conical structure with the middle protruding downward. Multiple ultraviolet lamps (51) are circumferentially distributed on the lower side of the conical bearing mesh plate (50). The ultraviolet lamps (51) are low-pressure mercury ultraviolet lamps with a wavelength of 254nm.

10. The river water pollution treatment device according to claim 9, characterized in that, The top of the sealed top cover (11) is fixed with a lifting support frame (12), and a cover opening telescopic cylinder (13) is fixed on the lower side of one end of the lifting support frame (12). The lower end of the cover opening telescopic cylinder (13) is fixed on the pretreatment water inlet cylinder (14).

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