Underground sewage treatment plant combining photocatalysis and lighting

Abstract

A composite photocatalysis and lighting underground sewage treatment plant comprises an underground sewage treatment plant body, an overground light-transmitting composite disinfection tank is arranged above the underground sewage treatment plant body, a composite photocatalysis tank is arranged in the middle of the upper side wall of the overground light-transmitting composite disinfection tank, and a photovoltaic module is arranged at the top of the composite photocatalysis tank. A storage battery is arranged at the position, close to the rear side, of the upper side wall of the overground light-transmitting composite disinfection pool, a lighting belt is arranged on the lower side wall of the overground light-transmitting composite disinfection pool along the side wall, a light sensation controller is arranged on the outer side wall of the composite photocatalysis pool and electrically connected with the lighting belt, the photovoltaic assembly is electrically connected with the storage battery, and the storage battery is electrically connected with the lighting belt.

Description

Technical Field

[0001] This invention patent belongs to the technical field of sewage treatment plants, and specifically relates to an underground sewage treatment plant with composite photocatalysis and daylighting. Background Art

[0002] Currently, above-ground sewage treatment plants have "Not In My Back Yard (NIMBY) effects" such as malodor, noise, and poor landscape, so their locations are all in the suburbs of the city. However, with the annual progress of urbanization, the above-ground sewage treatment plants in the suburbs of the city are gradually becoming centralized, and the odors and noises generated by the sewage treatment plants will inevitably cause troubles and harms to the residents around the plant area. However, considering the cost of sewage transportation distance, it is impossible for the sewage treatment plant to keep moving outwards. The underground sewage treatment plant came into being, which can effectively solve this contradiction, turn "NIMBY" into "benefiting the neighborhood", and also has advantages such as saving ground land use and making full use of underground space, meeting the development direction of future cities, and has become the planning trend of major cities in China. In addition, because the above-ground sewage treatment plant is far from the urban area, the cost of reclaimed water transportation is also relatively high. Therefore, the underground sewage treatment plant that can be set in the urban area also has significant advantages in the reuse of reclaimed water.

[0003] Underground sewage treatment plants generally use natural daylighting. Specifically, toughened glass is set on the top of the plant area. Considering safety, generally, people are not allowed to walk on it, which wastes this part of space. If this part of space can be utilized, while ensuring the natural daylighting function remains unchanged, adding a photocatalytic deep disinfection facility can further improve the effluent quality of the sewage treatment plant.

[0004] Publication No.: CN215769489U discloses an intelligent daylighting system for an underground sewage treatment plant, including a daylighting board, a light distribution board, and a light board direction control system. The daylighting board is configured to allow light to pass through, the light distribution board is configured to reflect light, and the light board direction control system is configured to control the angle between the daylighting board and the sun, and the angle between the light distribution board and the ground, and irradiate the collected light to the underground sewage treatment plant; in this system, the daylighting board uses ultra-white glass, and the light distribution board uses a reflective light board, which has ideal transmission and total reflection effects, high light energy utilization rate, good lighting effect, and simple processing technology, enabling the underground sewage treatment plant to use sunlight for lighting during the day.

[0005] Publication number: CN219709350U, which discloses a sludge drying device for urban sewage treatment plants, relates to the technical field of sewage sludge treatment equipment, and includes a heating heat pump. The heating heat pump includes an evaporator, a compressor, a condenser, and an expansion valve. A cold water pumping pipe and a hot water pumping pipe are provided on the evaporator. It also includes a drying workshop. The hot water pumping pipe is wound around the ground of the drying workshop. An air exchange and purification unit is provided on the drying workshop. A middle water treatment unit is provided on the cold water pumping pipe. After the middle water treatment unit treats the middle water, it conveys cold water to the evaporator through the cold water pumping pipe. The cold water exchanges heat through the evaporator and outputs from the hot water pumping pipe. The hot water output from the hot water pumping pipe is conveyed along the ground of the drying workshop. At this time, sludge is laid on the ground of the drying workshop. The hot water pipe conducts heat to heat the sludge, increasing the evaporation amount. The evaporated water vapor is discharged after being purified through the air exchange and purification unit. The heat pump is used to heat the evaporator, and at the same time, the middle water in sewage treatment is utilized to accelerate sludge drying and reduce the influence of external environmental changes.

[0006] Facing the above drawbacks, the prior art lacks effective technical measures to deal with them. There is no precedent for effectively combining the natural lighting at the top of an underground sewage treatment plant with the photocatalytic deep disinfection process, and there are no effective technical measures. Therefore, improvements are needed in this regard.

[0007] Content of the invention patent

[0008] In view of this, in the face of the deficiencies of the prior art, the purpose of this application is to provide an underground sewage treatment plant with composite photocatalysis and daylighting. The designed underground sewage treatment plant with composite photocatalysis and daylighting uses photocatalytic oxidation, with light as energy and titanium dioxide nanoparticles as a catalyst, to degrade organic matter into carbon dioxide (CO2) and water (H2O). It can reduce various waste and odorous gases such as aldehydes, benzenes, ammonia, amines, phenols, nitrogen oxides, sulfides, and other VOC organic compounds into carbon dioxide (CO2), water (H2O), and other non-toxic and harmless substances under the action of photocatalytic oxidation. Since there are no additives during the photocatalytic oxidation reaction process, no secondary pollution will be generated.

[0009] To achieve the above purpose and other related purposes, this application provides an underground sewage treatment plant with composite photocatalysis and daylighting, including an underground sewage treatment plant. An above-ground light-transmitting composite disinfection pool is arranged above the underground sewage treatment plant. A composite photocatalytic pool is arranged at the middle position of the upper side wall of the above-ground light-transmitting composite disinfection pool. A photovoltaic module is arranged on the top of the composite photocatalytic pool. A storage battery is arranged at the rear side position of the upper side wall of the above-ground light-transmitting composite disinfection pool. A lighting strip is arranged along the side wall at the lower side wall of the above-ground light-transmitting composite disinfection pool. A light sensor controller is arranged on the outer side wall of the composite photocatalytic pool. The light sensor controller is electrically connected to the lighting strip. The photovoltaic module is electrically connected to the storage battery. The storage battery is electrically connected to the lighting strip;

[0010] Through the above technical solution, the photovoltaic module installed on the top of the composite photocatalytic cell can supply power to the storage battery during the day. At night or when the light is insufficient, the storage battery powers the lighting strip. The tops of the underground sewage treatment plant and the bottoms of the above-ground light-transmitting composite disinfection tanks are made of transparent materials. The lighting strip catalyzes the composite photocatalytic cell and supplies power to the underground sewage treatment plant at the same time, greatly reducing the urban power supply pressure.

[0011] A technical solution provided by this application also has the following technical features:

[0012] Preferably, in an embodiment of this application, gantry tracks are provided on both side walls of the above-ground light-transmitting composite disinfection tank. Driving wheels are provided at the middle positions of the mutually approaching side walls of the two gantry tracks, and a magnetic attraction device is provided between the two driving wheels. With this structure, the lifting and lowering bottom plate of the disinfection tank in the above-ground light-transmitting composite disinfection tank can be lifted and lowered through the driving wheels of the gantry track, and with the action of the magnetic attraction device, the movement of the equipment in the sewage treatment plant without direct power input can be realized. It has such a technical effect that this structure avoids directly energizing the driving wheels, resulting in too fast a movement speed of the lifting and lowering bottom plate of the disinfection tank, thereby reducing the splashing of sewage on the bottom plate and making the cleaning process safer and more efficient.

[0013] Through the above technical solution, the magnetic attraction device cooperates with the cleaning magnetic block to lift the lifting and lowering bottom plate of the disinfection tank through magnetic force, and the driving wheel drives the cleaning magnetic block to rotate slowly, which can slowly lift the lifting and lowering bottom plate of the disinfection tank, avoiding directly energizing the magnetic attraction device, resulting in too fast a lifting speed of the lifting and lowering bottom plate of the disinfection tank and causing sewage to splash on the lifting and lowering bottom plate of the disinfection tank, greatly facilitating the cleaning of the lifting and lowering bottom plate of the disinfection tank.

[0014] Preferably, in an embodiment of this application, a lifting and lowering bottom plate of the disinfection tank is provided on the lower side wall of the composite photocatalytic cell, and a cleaning magnetic block for cooperating with the magnetic attraction device is provided below the lifting and lowering bottom plate of the disinfection tank.

[0015] A lifting and lowering bottom plate of the disinfection tank is provided on the lower side wall of the composite photocatalytic cell, and a cleaning magnetic block is equipped below the bottom plate. This structure uses magnetic force to lift and lower the bottom plate, and at the same time, the cleaning magnetic block is used to clean the bottom plate. It has such a technical effect that the movement of the cleaning magnetic block drives the lifting and lowering bottom plate of the disinfection tank to lift and lower, realizing the cleaning of the bottom plate, reducing the maintenance difficulty, and ensuring the continuous and efficient operation of the photocatalytic cell.

[0016] Through the above technical solution, driving the lifting and lowering bottom plate of the disinfection tank to lift and lower by the cleaning magnetic block facilitates the cleaning of the composite photocatalytic cell.

[0017] Preferably, in an embodiment of this application, a sewage purification mechanism is provided inside the underground sewage treatment plant.

[0018] The underground sewage treatment plant is equipped with a sewage purification mechanism inside, which can further purify the water treated by photocatalysis; it has the following technical effects: further purification can ensure that the quality of the effluent reaches higher environmental protection standards, improve the treatment effect, and meet different water quality and environmental requirements;

[0019] Through the above technical solution, the sewage is further treated by the sewage purification mechanism.

[0020] Preferably, in an embodiment of the present application, a disinfection tank water inlet is provided at the top of one side wall of the composite photocatalytic tank;

[0021] A disinfection tank water inlet is provided at the top of one side wall of the composite photocatalytic tank for introducing sewage for photocatalytic oxidation treatment; it has the following technical effects: the setting of the water inlet enables the sewage to flow into the photocatalytic tank orderly, helps to control the water flow, improves the photocatalytic effect, and ensures sufficient treatment.

[0022] Through the above technical solution, the sewage is discharged into the composite photocatalytic tank through the disinfection tank water inlet.

[0023] Preferably, in an embodiment of the present application, a disinfection tank drain outlet is provided at the bottom of the composite photocatalytic tank; a drain outlet is provided at the bottom of the composite photocatalytic tank for discharging the water treated by photocatalytic oxidation; it has the following technical effects: the setting of the disinfection tank drain outlet ensures that the treated water can be discharged quickly and effectively, ensures the continuous operation of the water treatment system, and improves the system efficiency;

[0024] Through the above technical solution, the sewage is discharged from the composite photocatalytic tank through the disinfection tank drain outlet.

[0025] Preferably, in an embodiment of the present application, a sewage inlet is provided at the bottom of the other side wall of the sewage purification mechanism; a sewage inlet is provided at the bottom of the other side wall of the sewage purification mechanism for introducing the treated water; it has the following technical effects: the setting of the sewage inlet helps to introduce the water treated by purification, improves the quality of the treated water, and ensures the effect of the whole system;

[0026] Through the above technical solution, the deodorized wastewater is introduced into the sewage purification mechanism through the sewage inlet.

[0027] Preferably, in an embodiment of the present application, a sewage outlet is provided at the top of one side of the sewage purification mechanism, and the other end of the sewage outlet penetrates through the bottom of one side wall of the above-ground light-transmitting composite disinfection tank and leads to the outside; a sewage outlet is provided at the top of one side of the sewage purification mechanism, and it penetrates through to the bottom of one side wall of the above-ground light-transmitting composite disinfection tank and leads to the outside; it has the following technical effects: the design of the sewage outlet enables the treated water to be discharged smoothly to the ground, meets the drainage requirements, and conforms to the environmental protection standards;

[0028] Through the above technical solution, the treated sewage is discharged to the ground through the sewage outlet.

[0029] Preferably, in an embodiment of the present application, the truss tracks installed on both side walls of the above-ground light-transmitting composite disinfection tank are symmetrically arranged. The symmetrical arrangement design helps to balance the system operation and improve the stability and reliability of the equipment.

[0030] Preferably, in an embodiment of the present application, the drive wheels are symmetrically arranged. The symmetrical arrangement design helps to balance the system operation and improve the stability and reliability of the equipment.

[0031] Preferably, in an embodiment of the present application, the photovoltaic module includes a photovoltaic panel, which converts light energy into electrical energy through the photovoltaic effect and supplies it for use by the storage battery and the lighting strip.

[0032] Preferably, in an embodiment of the present application, the magnetic attraction device is an electromagnet and the lighting strip is a light-emitting strip.

[0033] Preferably, in an embodiment of the present application, the drive wheels are electric wheels, such as electric hubs or walking wheels with motors.

[0034] The beneficial effects of the present application are as follows:

[0035] 1. In the present invention, in this sewage treatment plant, through photocatalytic oxidation, using light as energy and nano-titanium dioxide as a catalyst, organic matter is degraded into carbon dioxide (CO2) and water (H2O). It can reduce various waste and stinky gases such as aldehydes, benzenes, ammonia, amines, phenols, nitrogen oxides, sulfides and other VOC organic matters into carbon dioxide (CO2), water (H2O) and other non-toxic and harmless substances under the action of photocatalytic oxidation. Since there are no additives during the photocatalytic oxidation reaction process, no secondary pollution will be generated.

[0036] 2. In the present invention, the photovoltaic module arranged on the top of the composite photocatalytic tank can supply power to the storage battery during the day. At night or when the light is insufficient, the storage battery supplies power to the lighting strip. The tops of the underground sewage treatment plant and the bottoms of the above-ground light-transmitting composite disinfection tank are both made of transparent materials. The lighting strip catalyzes the composite photocatalytic tank and supplies power to the underground sewage treatment plant at the same time, greatly reducing the urban power supply pressure.

[0037] 3. In the present invention, the electromagnet cooperates with the electromagnet to lift the lifting bottom plate of the disinfection tank through magnetic force, and the drive wheel drives the electromagnet to rotate slowly, which can slowly lift the lifting bottom plate of the disinfection tank, avoiding directly energizing the electromagnet, resulting in the lifting speed of the lifting bottom plate of the disinfection tank being too fast and causing the sewage on the lifting bottom plate of the disinfection tank to splash, greatly facilitating the cleaning of the lifting bottom plate of the disinfection tank. Description of the Drawings

[0038] Figure 1Overall view of an underground sewage treatment plant with composite photocatalysis and daylighting for this invention patent

[0039] Figure 2 Bottom schematic diagram of an underground sewage treatment plant with composite photocatalysis and daylighting for this invention patent

[0040] Figure 3 Intake tank schematic diagram of an underground sewage treatment plant with composite photocatalysis and daylighting for this invention patent

[0041] Figure 4 Cross-sectional view of an underground sewage treatment plant with composite photocatalysis and daylighting for this invention patent

[0042] In the figure:

[0043] 1. Underground sewage treatment plant

[0044] 2. Above-ground light-transmitting composite disinfection tank

[0045] 3. Composite photocatalysis tank

[0046] 4. Storage battery

[0047] 5. Girder car track

[0048] 6. Disinfection tank drain outlet

[0049] 7. Light sensor controller

[0050] 8. Disinfection tank water inlet

[0051] 9. Photovoltaic module

[0052] 10. Sewage inlet

[0053] 11. Sewage outlet

[0054] 12. Lighting strip

[0055] 13. Driving wheel

[0056] 14. Cleaning magnetic block

[0057] 15. Disinfection tank lifting bottom plate

[0058] 16. Magnetic attraction device

[0059] 17. Sewage purification mechanism Detailed implementation manners

[0060] The following further elaborates the detailed implementation manners of this application in conjunction with the attached drawings. These implementation manners are only used to illustrate this application and do not limit the invention creation

[0061] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0062] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0064] Such as Figures 1-4 , a composite photocatalytic and daylighting underground sewage treatment plant, comprising an underground sewage treatment plant 1. Above the underground sewage treatment plant 1, there is an above-ground light-transmitting composite disinfection tank 2. In the middle position of the upper side wall of the above-ground light-transmitting composite disinfection tank 2, there is a composite photocatalytic tank 3. On the top of the composite photocatalytic tank 3, there is a photovoltaic module 9. At the rear side position of the upper side wall of the above-ground light-transmitting composite disinfection tank 2, there is a storage battery 4. Along the side wall of the lower side wall of the above-ground light-transmitting composite disinfection tank 2, there is an illumination strip 12. On the outer side wall of the composite photocatalytic tank 3, there is a light sensor controller 7. The light sensor controller 7 is electrically connected to the illumination strip 12. The photovoltaic module 9 is electrically connected to the storage battery 4. The storage battery 4 is electrically connected to the illumination strip 12. The photovoltaic module 9 provided on the top of the composite photocatalytic tank 3 can supply power to the storage battery 4 during the day. At night or when the light is insufficient, the storage battery 4 supplies power to the illumination strip 12. The top of the underground sewage treatment plant 1 and the bottom of the above-ground light-transmitting composite disinfection tank 2 are both made of transparent materials. The illumination strip 12 catalyzes the composite photocatalytic tank 3 and supplies power to the underground sewage treatment plant 1 at the same time, greatly reducing the urban power supply pressure.

[0065] On both side walls of the above-ground light-transmitting composite disinfection tank 2, gantry tracks 5 are provided. Drive wheels 13 are provided at the middle positions of the side walls of the two gantry tracks 5 that are close to each other. A magnetic attraction device 16 is provided between the two drive wheels 13. A disinfection tank lifting bottom plate 15 is provided on the lower side wall of the composite photocatalytic tank 3. A cleaning magnetic block 14 that cooperates with the magnetic attraction device 16 is provided below the disinfection tank lifting bottom plate 15. The cleaning magnetic block 14 cooperates with the magnetic attraction device 16 to lift the disinfection tank lifting bottom plate 15 through magnetic force. The drive wheel 13 drives the cleaning magnetic block 14 to slowly rotate, and the disinfection tank lifting bottom plate 15 can be slowly lifted, avoiding directly energizing the cleaning magnetic block 14, which may cause the sewage on the disinfection tank lifting bottom plate 15 to splash due to the too fast lifting speed of the disinfection tank lifting bottom plate 15, greatly facilitating the cleaning of the disinfection tank lifting bottom plate 15.

[0066] The gantry tracks 5 installed on both side walls of the above-ground light-transmitting composite disinfection tank 2 are symmetrically arranged; the drive wheels 13 are symmetrically arranged;

[0067] The photovoltaic module 9 includes a photovoltaic panel;

[0068] The magnetic attraction device 16 is an electromagnet, and the lighting strip 12 is a light strip;

[0069] A sewage purification mechanism 17 is provided inside the underground sewage treatment plant 1. The sewage is further treated through the sewage purification mechanism 17. A disinfection tank water inlet 8 is provided at the top of one side wall of the composite photocatalytic tank 3. The sewage is discharged into the composite photocatalytic tank 3 through the disinfection tank water inlet 8. A disinfection tank drain outlet 6 is provided at the bottom of the composite photocatalytic tank 3. The sewage is discharged from the composite photocatalytic tank 3 through the disinfection tank drain outlet 6. A sewage inlet 10 is provided at the bottom of the other side wall of the sewage purification mechanism 17. The deodorized wastewater is introduced into the sewage purification mechanism 17 through the sewage inlet 10. A sewage outlet 11 is provided at the top of one side of the sewage purification mechanism 17. The other end of the sewage outlet 11 penetrates through the bottom of one side wall of the above-ground light-transmitting composite disinfection tank 2 and leads to the outside. The treated sewage is discharged to the ground through the sewage outlet 11. The sewage first enters the composite catalytic tank 3, and then enters the sewage purification structure 17. After the sewage purification mechanism 17 finishes the treatment, it is disinfected by the composite disinfection tank 2 and then discharged from the whole system to achieve the multi-treatment of sewage by the system.

[0070] Working principle: This sewage treatment plant uses photocatalytic oxidation. With light as the energy and nano-titanium dioxide as the catalyst, it degrades organic matter into CO2 and H2O. In the photocatalytic oxidation reaction, electron-hole pairs are generated by irradiating ultraviolet light on the nano-TiO2 photocatalyst, which react with the adsorbed water H2O and oxygen O2 on the surface to generate highly reactive hydroxyl radicals OH- and superoxide ion radicals O2-. These radicals can reduce various waste and odor gases such as aldehydes, benzenes, ammonia, amines, phenols, nitrogen oxides, sulfides, and other VOC organic compounds into carbon dioxide CO2, water H2O, and other non-toxic and harmless substances under the action of photocatalytic oxidation. Since there are no additives in the photocatalytic oxidation reaction process, no secondary pollution will be generated. This treatment plant consists of an underground sewage treatment plant 1 and a sewage purification mechanism 17 installed inside it as the underground part. The underground sewage treatment plant 1 is located below the ground, while the above-ground light-transmitting composite disinfection tank 2 and the composite photocatalytic tank 3 are the above-ground parts. First, the sewage is treated for waste and odor gas removal in the composite photocatalytic tank 3. Nano-titanium dioxide catalyst is added to the composite photocatalytic tank 3, and the organic matter is degraded through photocatalytic oxidation. After removing the waste and odor gas, the wastewater is fed into the underground sewage purification mechanism 17 for further treatment. The photovoltaic module 9 installed on the top of the composite photocatalytic tank 3 can supply power to the storage battery 4 during the day. At night or when the light is insufficient, the storage battery 4 supplies power to the lighting strip 12. The tops of the underground sewage treatment plant 1 and the bottoms of the above-ground light-transmitting composite disinfection tank 2 are made of transparent materials. The lighting strip 12 catalyzes the composite photocatalytic tank 3 and supplies power to the underground sewage treatment plant 1 at the same time, greatly reducing the urban power supply pressure. The cleaning magnet 14 and the magnetic attraction device 16 cooperate through magnetic force to lift the disinfection tank lifting bottom plate 15, and the driving wheel 13 drives the cleaning magnet 14 to rotate slowly, which can slowly lift the disinfection tank lifting bottom plate 15, avoiding directly energizing the cleaning magnet 14, resulting in too fast a lifting speed of the disinfection tank lifting bottom plate 15 and causing the sewage on the disinfection tank lifting bottom plate 15 to splash, greatly facilitating the cleaning of the disinfection tank lifting bottom plate 15.

[0071] Generally speaking, as Figures 1-4 , a composite photocatalytic and daylighting underground sewage treatment plant includes an underground sewage treatment plant. An above-ground light-transmitting composite disinfection tank is arranged above the underground sewage treatment plant, a composite photocatalytic tank is arranged at the middle position of the upper side wall of the above-ground light-transmitting composite disinfection tank, and a photovoltaic module is arranged on the top of the composite photocatalytic tank. In the present invention, through photocatalytic oxidation, with light as the energy and nano-titanium dioxide as the catalyst, organic matter is degraded into CO2 and H2O. It can reduce various waste and odor gases such as aldehydes, benzenes, ammonia, amines, phenols, nitrogen oxides, sulfides, and other VOC organic compounds into CO2, H2O, and other non-toxic and harmless substances under the action of photocatalytic oxidation. Since there are no additives in the photocatalytic oxidation reaction process, no secondary pollution will be generated;

[0072] The present invention relates to an underground sewage treatment plant with composite photocatalysis and daylighting, aiming to solve the problems caused by the NIMBY effect of above-ground sewage treatment plants. By combining natural daylighting at the top of the underground sewage treatment plant with a photocatalytic deep disinfection process through technical means, the sewage treatment effect is improved.

[0073] The composite photocatalysis and daylighting applied in the technical solution of this application have the following technical characteristics:

[0074] Photocatalytic oxidation process: The present invention adopts the photocatalytic oxidation technology, using light energy and nano-titanium dioxide catalyst to degrade organic matter into harmless substances such as carbon dioxide and water; this process effectively reduces the emission of waste and odor gases and does not produce secondary pollution.

[0075] Underground sewage treatment plant structure: The underground sewage treatment plant adopts an above-ground light-transmitting composite disinfection pool, and components such as a composite photocatalytic pool, photovoltaic modules, and lighting strips are arranged on its top; this structure helps to effectively utilize light energy and ensure natural daylighting at the same time.

[0076] Photovoltaic module power supply system: The photovoltaic modules are used to supply power to the storage battery during the day and to the lighting strip at night, so as to flexibly allocate electric energy at different time periods and reduce the urban power supply pressure.

[0077] Cleaning magnet block and magnetic attraction device: An elevating bottom plate system composed of a magnetic attraction device and a cleaning magnet block is adopted. By means of magnetic lifting, it is possible to avoid directly energizing the magnetic attraction device and causing sewage splashing, and achieve convenient cleaning of the disinfection pool.

[0078] Arrangement of the truss crane track and the magnetic attraction device. The truss crane tracks are installed on both side walls of the above-ground light-transmitting composite disinfection pool, and the magnetic attraction device is designed; through these designs, the slow lifting and lowering of the lifting bottom plate of the disinfection pool can be realized, and at the same time, sewage splashing can be avoided, improving the cleaning efficiency.

[0079] Setting of the sewage purification mechanism. A sewage purification mechanism is set in the underground sewage treatment plant to further improve the sewage treatment effect and ensure that the treated water quality meets the discharge standards.

[0080] Design of the inlet and outlet of the disinfection pool. The inlet and outlet of the disinfection pool are arranged in the composite photocatalytic pool, which helps to control the inflow and outflow of sewage and improve the accuracy of treatment.

[0081] Symmetrical arrangement design. Symmetrical arrangement is adopted in components such as the truss crane track, driving wheel, and photovoltaic modules, which helps to balance the system operation and improve the stability and reliability of the equipment.

[0082] Specific form of the photovoltaic module. The photovoltaic module includes photovoltaic panels, which convert light energy into electric energy through the photovoltaic effect and supply it to the storage battery and the lighting strip for use.

[0083] In the form of a magnetic attraction device and a lighting strip. Preferably, the magnetic attraction device is an electromagnet and the lighting strip is a light-emitting strip. This design is simple and practical, improving the maintainability of the system.

[0084] In terms of the technical effects of this application, the following technical progress has been achieved:

[0085] The sewage treatment effect is improved. Through the photocatalytic oxidation process in the composite photocatalytic pond, the waste odor gas is effectively degraded, avoiding secondary pollution and ensuring that the treated water quality meets the environmental protection standards.

[0086] Energy conservation and emission reduction: The photovoltaic module is used to supply power during the day and the lighting strip at night. Through intelligent power allocation, the urban power supply pressure is reduced, achieving energy conservation and emission reduction.

[0087] Cleaning and maintenance are convenient. Through the design of the magnetic attraction device and the cleaning magnetic block, the cleaning of the lifting bottom plate of the disinfection pond is more convenient, improving the maintenance efficiency of the equipment.

[0088] Flexible drainage control: The settings of the water inlet and drain outlet of the disinfection pond help to flexibly control the sewage, improving the flexibility and accuracy of treatment.

[0089] The system stability is improved: By adopting a symmetric layout design, the balance of the system operation is improved, enhancing the stability and reliability of the equipment.

[0090] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A composite photocatalytic and daylighting underground sewage treatment plant, comprising an underground sewage treatment plant (1), characterized in that: An above-ground light-transmitting composite disinfection pool (2) is arranged above an underground sewage treatment plant (1). A composite photocatalytic pool (3) is arranged at the middle position of the upper side wall of the above-ground light-transmitting composite disinfection pool (2). A photovoltaic module (9) is arranged on the top of the composite photocatalytic pool (3). A storage battery (4) is arranged at the rear side position of the upper side wall of the above-ground light-transmitting composite disinfection pool (2). A lighting strip (12) is arranged along the side wall at the lower side wall of the above-ground light-transmitting composite disinfection pool (2). A light sensor controller (7) is arranged on the outer side wall of the composite photocatalytic pool (3). The light sensor controller (7) is electrically connected to the lighting strip (12). The photovoltaic module (9) is electrically connected to the storage battery (4). The storage battery (4) is electrically connected to the lighting strip (12).

2. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: Truss crane tracks (5) are arranged on the two side walls of the above-ground light-transmitting composite disinfection pool (2). Driving wheels (13) are arranged at the middle positions of the mutually adjacent side walls of the two truss crane tracks (5). A magnetic attraction device (16) is arranged between the two driving wheels (13).

3. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: A disinfection pool lifting bottom plate (15) is arranged on the lower side wall of the composite photocatalytic pool (3). A cleaning magnetic block (14) which is used in cooperation with the magnetic attraction device (16) is arranged below the disinfection pool lifting bottom plate (15).

4. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: A sewage purification mechanism (17) is arranged inside the underground sewage treatment plant (1).

5. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: A disinfection pool water inlet (8) is arranged at the top of one side wall of the composite photocatalytic pool (3).

6. The composite photocatalytic and daylighting underground sewage treatment plant according to the claim, characterized in that: A disinfection pool drain outlet (6) is arranged at the bottom of the composite photocatalytic pool (3).

7. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 4, characterized in that: A sewage inlet (10) is arranged at the bottom of the other side wall of the sewage purification mechanism (17).

8. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: A sewage outlet (11) is arranged at the top of one side of the sewage purification mechanism (17). The other end of the sewage outlet (11) penetrates through the bottom of one side wall of the above-ground light-transmitting composite disinfection pool (2) and leads to the outside thereof.

9. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: The truss crane tracks (5) installed on the two side walls of the above-ground light-transmitting composite disinfection pool (2) are symmetrically arranged; the photovoltaic module (9) includes photovoltaic panels.

10. The composite photocatalytic and daylighting underground sewage treatment plant according to claim 1, characterized in that: The driving wheels (13) are symmetrically arranged. The magnetic attraction device (16) is an electromagnet. The lighting strip (12) is a light-emitting strip.

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