Supergravity and multi-dimensional advanced oxidation wastewater treatment device

Abstract

The invention discloses a supergravity and multi-dimensional advanced oxidation wastewater treatment device, which comprises a tank body, and a filler mechanism, an oxidation mechanism and a photocatalysis mechanism are installed in the tank body, and relates to the technical field of wastewater treatment devices. According to the supergravity and multi-dimensional advanced oxidation wastewater treatment device, through multi-dimensional advanced oxidation equipment composed of electrocatalytic oxidation, photocatalysis and ozone oxidation and mutual promotion of multi-dimensional advanced oxidation, more advanced oxidation factors are generated, the wastewater treatment effect is improved, and meanwhile, the wastewater treatment effect is improved. A coating layer plate made of a titanium dioxide material is arranged outside a filler layer, and the collision frequency of reactants is increased by utilizing supergravity, so that the reaction rate is accelerated, the mass transfer effect is enhanced, wastewater to be treated and advanced oxidation factors can be fully contacted and reacted, and liquid on the surface of a catalyst fixed bed is thinned; and the loss rate of exciting light reaching the surface of the catalyst is reduced.

Description

A high-gravity and multi-dimensional advanced oxidation wastewater treatment device Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically a high-gravity and multi-dimensional advanced oxidation wastewater treatment device. Background Technology

[0002] Wastewater refers to water that has become polluted and lost its original function after use. It typically contains various physical, chemical, or biological pollutants and requires treatment before safe discharge or reuse. For recalcitrant wastewater, conventional physical and chemical methods are insufficient to remove organic matter and other pollutants. This recalcitrant wastewater has poor biodegradability, is toxic and harmful, and cannot be directly treated biologically. Currently, the main method for removing recalcitrant wastewater is advanced oxidation, which includes various process forms such as Fenton oxidation, photocatalysis, ozone oxidation, electrochemical oxidation, wet oxidation, and their combinations.

[0003] Existing wastewater treatment devices use rotatable packing as rotors, utilizing the rotation to create a hypergravity environment, increasing the collision efficiency of reactants, thereby accelerating the reaction rate between wastewater and the medium, enhancing the mass transfer effect of wastewater, and ensuring sufficient contact and reaction between the wastewater to be treated and the advanced oxidizing agents. However, existing hypergravity wastewater treatment devices have the following drawbacks: 1. The advanced oxidation structure of existing wastewater oxidation equipment is relatively simple, resulting in low wastewater treatment efficiency; 2. Some wastewater oxidation equipment is equipped with ultraviolet lamps to disinfect wastewater and extinguish pathogenic microorganisms. During operation, a thick water film forms in some wastewater, and the excitation light from the ultraviolet lamps is significantly absorbed as it reaches the catalyst surface, resulting in low light energy utilization; 3. Existing wastewater treatment devices use single-stage treatment, and some ammonia nitrogen components remain dissolved in the wastewater after single-stage treatment, resulting in a weak treatment effect.

[0004] To address these issues, the present invention provides a supergravity and multidimensional advanced oxidation wastewater treatment device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a supergravity and multidimensional advanced oxidation wastewater treatment device, which solves the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-gravity and multi-dimensional advanced oxidation wastewater treatment device, comprising a tank, a top plate mounted on the top of the tank, an installation plate mounted on the top of the top plate, a stirring mechanism mounted on the top of the installation plate, and a packing mechanism, an oxidation mechanism, and a photocatalytic mechanism installed inside the tank; the packing mechanism includes an assembly frame fixedly connected to the inside of the tank, a coating layer plate fixedly connected to the outside of the assembly frame, forming a packing cavity between the assembly frame and the coating layer plate, with a packing layer inside the packing cavity; a packing inlet pipe and a packing discharge pipe fixedly connected to the outside of the tank; the oxidation mechanism includes an aeration pipe installed at the bottom of the inner cavity of the tank, an ozone emitter fixedly connected to the top of the aeration pipe, an ozone inlet pipe fixedly connected to the outside of the aeration pipe, and an exhaust pipe fixedly connected to the top of the tank; the photocatalytic mechanism includes a lamp sleeve installed inside the tank, with an ultraviolet lamp installed inside the lamp sleeve; and a circulation mechanism installed on the outside of the tank.

[0007] Preferably, the coating layer is provided with a titanium dioxide coating.

[0008] Preferably, the filler layer is composed of granular activated carbon particle electrode filler.

[0009] Preferably, the lamp sleeves are provided in a plurality of manner, and the plurality of lamp sleeves are arranged in a ring at equal intervals, with the lamp sleeves partially penetrating the filler layer.

[0010] Preferably, a water distribution pipe is installed inside the tank, and a spiral nozzle is fixedly connected to the bottom of the water distribution pipe. Several spiral nozzles are provided, and an inlet pipe is fixedly connected to the outside of the water distribution pipe, and the inlet pipe passes through the tank.

[0011] Preferably, an overflow pipe is fixedly connected to the top of the outer side of the tank, and a circulating pump pipe is fixedly connected to the bottom of the outer side of the tank. The circulation mechanism includes a circulating pump body installed between the inlet pipe and the circulating pump pipe. A guide pipe is fixedly connected between the input end of the circulating pump body and the circulating pump pipe. A return pipe is fixedly connected to the output end of the circulating pump body. A manual valve is fixedly connected to the outside of the guide pipe and the return pipe. A one-way check valve is fixedly connected to the outside of the return pipe. The circulation mechanism also includes a drain pipe fixedly connected between the output end of the return pipe and the inlet pipe. A water inlet pipe is fixedly connected to the top of the drain pipe. An electric valve is fixedly connected to the outside of both the drain pipe and the water inlet pipe.

[0012] Preferably, the stirring mechanism includes a servo motor fixedly connected to the top of the mounting plate, a rotating shaft fixedly connected to the output end of the servo motor, and a blade fixedly connected to the bottom of the rotating shaft, the blade being located at the bottom of the water distribution pipe.

[0013] Preferably, a partition is fixedly connected to the top of the inner cavity of the tank, and both the assembly frame and the partition are made of perforated plate structure. A wire mesh demister is fixedly connected to the top of the partition and is located at the top of the water distribution pipe.

[0014] Preferably, a level gauge connector is fixedly connected to the bottom outer side of the tank, a level gauge body is installed on the outer side of the level gauge connector, and a manual valve is also installed on the outer side of the level gauge body. Beneficial Effects

[0015] This invention provides a supergravity and multidimensional advanced oxidation wastewater treatment device. Compared with the prior art, it has the following advantages: 1. This supergravity and multidimensional advanced oxidation wastewater treatment device integrates granular activated carbon particle electrode packing inside the assembly frame, and installs multiple ultraviolet lamps inside the tank and an ozone emitter at the bottom of the tank. It combines electrocatalytic oxidation, photocatalysis, and ozone oxidation into a multidimensional advanced oxidation device. Compared with single-dimensional advanced oxidation, multidimensional advanced oxidation can promote each other, generate more advanced oxidation factors, and thus achieve a stronger wastewater treatment effect.

[0016] 2. This hypergravity and multidimensional advanced oxidation wastewater treatment device has a photocatalytic coating made of titanium dioxide installed on the outer wall of the assembly frame. Hypergravity increases the collision frequency of reactants, thereby accelerating the reaction rate and enhancing the mass transfer effect, allowing the wastewater to be treated and the advanced oxidizing agents to fully contact and react. Hypergravity also causes the liquid film attached to the surface of the catalyst fixed bed to be formed, which greatly reduces the light loss of ultraviolet light by the liquid during the process of ultraviolet lamp excitation light reaching the catalyst surface, and improves the utilization rate of light energy.

[0017] 3. This high-gravity and multi-dimensional advanced oxidation wastewater treatment device circulates wastewater in the tank through a circulating pump, allowing for repeated treatment of wastewater and improving the treatment effect. Attached Figure Description

[0018] Figure 1 is a perspective view of the external structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the tank of the present invention; Figure 3 is a partial schematic diagram of the oxidation mechanism of the present invention; Figure 4 is a schematic diagram of the connection structure of the water distribution pipe and the spiral nozzle of the present invention; Figure 5 is a schematic diagram of the structure of the partition of the present invention; Figure 6 is a schematic diagram of the structure of the wire mesh demister of the present invention.

[0019] In the diagram: 1. Tank body; 2. Top plate; 3. Mounting plate; 4. Agitator mechanism; 401. Servo motor; 402. Rotating shaft; 403. Paddle; 5. Packing mechanism; 501. Assembly frame; 502. Coating layer plate; 503. Packing layer; 504. Packing feed pipe; 505. Packing discharge pipe; 6. Oxidation mechanism; 601. Aeration pipe; 602. Ozone emitter; 603. Ozone inlet pipe; 604. Exhaust pipe; 7. Photocatalytic mechanism; 701. 702 Lamp cover; 8. Ultraviolet lamp; 8. Circulation mechanism; 801. Circulation pump body; 802. Guide pipe; 803. Return pipe; 804. Manual valve; 805. One-way check valve; 806. Drain pipe; 807. Inlet pipe; 808. Electric valve; 9. Water distribution pipe; 10. Spiral nozzle; 11. Liquid inlet pipe; 12. Overflow pipe; 13. Circulation pump liquid pipe; 14. Baffle plate; 15. Wire mesh demister; 16. Level gauge connection pipe; 17. Level gauge body. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Embodiment 1:

[0021] Please refer to Figures 1-6. A high-gravity and multi-dimensional advanced oxidation wastewater treatment device includes a tank 1. A top plate 2 is installed on the top of the tank 1, and an mounting plate 3 is installed on the top of the top plate 2. A stirring mechanism 4 is installed on the top of the mounting plate 3. A packing mechanism 5, an oxidation mechanism 6, and a photocatalytic mechanism 7 are installed inside the tank 1. The packing mechanism 5 includes an assembly frame 501 fixedly connected to the inside of the tank 1. A coating layer plate 502 is fixedly connected to the outside of the assembly frame 501. A packing cavity is formed between the assembly frame 501 and the coating layer plate 502. A packing layer 503 is provided inside the packing cavity. The outside of the tank 1... The packing feed pipe 504 and the packing discharge pipe 505 are fixedly connected to the side, and the packing feed pipe 504, the packing discharge pipe 505 and the packing cavity are connected; the oxidation mechanism 6 includes an aeration pipe 601 installed at the bottom of the inner cavity of the tank 1, an ozone emitter 602 fixedly connected to the top of the aeration pipe 601, an ozone inlet pipe 603 fixedly connected to the outside of the aeration pipe 601, the ozone inlet pipe 603 penetrates the tank 1, and an exhaust pipe 604 is fixedly connected to the top of the tank 1; the photocatalytic mechanism 7 includes a lamp sleeve 701 installed inside the tank 1, and an ultraviolet lamp 702 is installed inside the lamp sleeve 701.

[0022] In this embodiment, the wastewater needs to be pretreated before being fed into tank 1. The pretreatment steps mainly include pH adjustment and wastewater removal, including impurity and oil removal. Removing impurities and grease from the wastewater prevents blockage of the packing layer 503 inside the assembly frame 501 and prevents grease from adhering to the inside of the packing layer 503, thus affecting its wastewater treatment effect. After pretreatment, the wastewater enters tank 1. The activated carbon particle electrode packing integrated inside the assembly frame 501 provides electrocatalytic oxidation for the wastewater, while the ultraviolet lamp 702 provides photocatalytic oxidation. As a result, the ozone generated by the ozone emitter 602 has an ozone oxidation effect on the wastewater. Through a multi-dimensional advanced oxidation system composed of electrocatalytic oxidation, photocatalysis, and ozone oxidation, the wastewater is simultaneously subjected to advanced oxidation. The multi-dimensional advanced oxidation promotes each other, generating more advanced oxidation factors, which mainly include hydroxyl radicals, active oxygen, and active hydrogen, thus achieving a better wastewater treatment effect. The packing feed pipe 504 and packing discharge pipe 505 facilitate the periodic replacement of the packing layer 503 inside the assembly frame 501, preventing the packing layer 503 from failing and affecting the wastewater treatment effect.

[0023] The coating layer 502 is made of titanium dioxide.

[0024] In this embodiment, the titanium dioxide coating can increase its reaction surface area. When the coating is irradiated by ultraviolet light, the titanium dioxide nanoparticles absorb light energy and generate highly active electron-hole pairs. These holes and electrons can react with water and oxygen on the surface to generate hydroxyl radicals and superoxide radicals with extremely strong oxidizing power. These radicals can indiscriminately decompose most organic pollutants attached to the coating surface, ultimately degrading them into harmless carbon dioxide and water. At the same time, the titanium dioxide coating can also kill microorganisms and destroy their cell structure. Meanwhile, under the irradiation of ultraviolet lamp 702, the affinity of the titanium dioxide surface for water increases sharply, and the contact angle approaches 0°, forming a uniform water film rather than water droplets. Under the action of hypergravity, the liquid on the surface of the catalyst fixed bed is thinned, which greatly reduces the light loss absorbed by the liquid during the process of the excitation light reaching the catalyst surface and improves the light energy utilization rate.

[0025] The packing layer 503 is composed of granular activated carbon particle electrode packing.

[0026] In this embodiment, when an electric field is applied, the granular activated carbon, due to its excellent conductivity, induces positive and negative charges at both ends, forming micro-anodes and micro-cathodes. Pollutants not only react on the main electrode but are also directly oxidized or reduced on the surfaces of tens of thousands of particle electrodes, resulting in an exponential increase in reaction area. On the surface of the micro-anode, water molecules are electrolyzed to generate highly oxidizing hydroxyl radicals. Numerous micro-electric fields are formed between the particle electrodes and the main electrode, and between the particle electrodes themselves, promoting the efficiency of oxidant generation. Activated carbon has a huge specific surface area and abundant pore structure, enabling it to quickly adsorb organic matter in water onto its surface. The adsorbed organic matter is precisely at the most active site of the oxidation reaction and is then degraded in situ, achieving a virtuous cycle of adsorption, enrichment, degradation, and regeneration of active sites. This avoids the problem of activated carbon saturation and failure. Granular activated carbon can treat a variety of recalcitrant organic matter.

[0027] The lamp sleeve 701 is provided in several ways, and the lamp sleeve 701 is arranged in a ring at equal intervals, with part of the lamp sleeve 701 penetrating the filler layer 503.

[0028] In this embodiment, the multiple lamp sleeves 701 and the ultraviolet lamps 702 inside them ensure that the ultraviolet light fully covers the interior of the tank 1, further improving the efficiency of wastewater contact with ultraviolet light. The lamp sleeves 701 seal the ultraviolet lamps 702, preventing wastewater from entering and damaging them. The multiple ultraviolet lamps 702 can be connected in parallel, so that when one ultraviolet lamp 702 fails, the others can still work normally, preventing the photocatalysis of the wastewater from being affected. At the same time, part of the lamp sleeve 701 penetrates the packing layer 503, and the wastewater passing through the packing layer 503 comes into full contact with the ultraviolet light.

[0029] A water distribution pipe 9 is installed inside the tank body 1. A spiral nozzle 10 is fixedly connected to the bottom of the water distribution pipe 9. Several spiral nozzles 10 are provided. An inlet pipe 11 is fixedly connected to the outside of the water distribution pipe 9. The inlet pipe 11 passes through the tank body 1.

[0030] In this embodiment, when wastewater is injected into tank 1, the wastewater enters water distribution pipe 9 from inlet pipe 11 and is sprayed out from spiral nozzle 10. Spiral nozzle 10 has an anti-clogging effect. At the same time, the hollow cone-shaped spiral nozzle 10 forms a hollow cone-shaped spray of wastewater. The spray is annular and has a wide coverage area, which increases the contact area between wastewater and ozone and ultraviolet rays. At the same time, the droplets it produces are relatively uniform in size, which enhances its penetrating power and makes it less likely to drift.

[0031] The stirring mechanism 4 includes a servo motor 401 fixedly connected to the top of the mounting plate 3. The output end of the servo motor 401 is fixedly connected to a rotating shaft 402. The bottom of the rotating shaft 402 is fixedly connected to a blade 403, which is located at the bottom of the water distribution pipe 9.

[0032] In this embodiment, during wastewater treatment, the servo motor 401 drives the fixed output shaft 402 to rotate. The rotating shaft 402 drives the blades 403 to rotate together. The rotating blades 403 transform the wastewater into fine droplets and filaments, thereby increasing the surface area of ​​the wastewater while forming a thin film, thus improving the wastewater treatment effect. The servo motor 401 is fixedly installed on the top of the mounting plate 3 by bolts and nuts. The nuts are located on the top of the mounting plate 2, and the bolts are fixed to the top plate 2. The nuts are removable, making it convenient to remove the servo motor 401 and the blades 403 installed on the outside of the shaft 402 from the inside of the tank 1 for maintenance and cleaning. Embodiment 2:

[0033] Please refer to Figures 1-6. This embodiment provides a technical solution for a high-gravity and multi-dimensional advanced oxidation wastewater treatment device based on Embodiment 1: A circulation mechanism 8 is installed on the outside of the tank 1. An overflow pipe 12 is fixedly connected to the top of the outside of the tank 1, and a circulation pump liquid pipe 13 is fixedly connected to the bottom of the outside of the tank 1. The circulation mechanism 8 includes a circulation pump body 801 installed between the inlet pipe 11 and the circulation pump liquid pipe 13. A guide pipe 802 is fixedly connected between the input end of the circulation pump body 801 and the circulation pump liquid pipe 13, and a return pipe is fixedly connected to the output end of the circulation pump body 801. A manual valve 804 is fixedly connected to the outside of pipe 803, guide pipe 802 and return pipe 803, and a one-way check valve 805 is fixedly connected to the outside of return pipe 803; the circulation mechanism 8 also includes a drain pipe 806 fixedly connected between the output end of return pipe 803 and inlet pipe 11, an inlet pipe 807 fixedly connected to the top of drain pipe 806, and electric valves 808 fixedly connected to the outside of both drain pipe 806 and inlet pipe 807. Two electric valves 808 are installed on the outside of drain pipe 806, and one electric valve 808 is installed on the outside of inlet pipe 807.

[0034] In this embodiment, some substances in the wastewater, such as ammonia nitrogen, have strong solubility. Even after electrocatalytic oxidation, photocatalysis, and ozone oxidation, some ammonia nitrogen still dissolves in the treated wastewater. Direct discharge of this wastewater would cause significant environmental pollution. During operation, different operating modes are selected based on the required treatment level of organic pollutants in the wastewater. After tank 1 completes one treatment of the wastewater, the manual valve 804 outside the guide pipe 802 and the electric valve 808 between the drain pipe 806 and the inlet pipe 11 are opened, and the inlet is closed. The electric valve 808 on the outside of the water pipe 807 starts the circulation pump body 801, which sends the wastewater back into the tank 1 for circulation treatment. Alternatively, the electric valve 808 on the outside of the inlet pipe 807 can be opened to treat the wastewater together, and the two streams of wastewater are simultaneously transported into the interior of the tank 1. After the wastewater has been treated multiple times, the electric valve 808 on the outside of the drain pipe 806 is opened to discharge the wastewater. By treating the wastewater multiple times, the wastewater treatment effect is improved. The one-way check valve 805 allows untreated wastewater to directly enter the bottom of the inner cavity of the tank 1.

[0035] A partition 14 is fixedly connected to the top of the inner cavity of the tank 1. Both the assembly frame 501 and the partition 14 adopt a perforated plate structure. A wire mesh demister 15 is fixedly connected to the top of the partition 14. The wire mesh demister 15 is located at the top of the water distribution pipe 9.

[0036] In this embodiment, the gas generated by the ozone emitter 602 carries the ammonia nitrogen gas separated from the wastewater through the assembly frame 501 and its internal packing layer 503, and through the wire mesh demister 15 at the top of the partition 14. The wire mesh demister 15 separates the water droplets and the gas, so that the waste gas is discharged from the exhaust pipe 604 installed at the top of the tank 1. A tail gas treatment device can be installed at the port of the exhaust pipe 604 to treat the waste gas and prevent the waste gas from being directly discharged and causing pollution to the environment.

[0037] A level gauge connector 16 is fixedly connected to the bottom of the outer side of the tank body 1. A level gauge body 17 is installed on the outer side of the level gauge connector 16. A manual valve 804 is also installed on the outer side of the level gauge body 16.

[0038] In this embodiment, the liquid level gauge connector 16 and the liquid level gauge body 17 fixed on its outside can monitor the liquid level of wastewater in tank 1 in real time, preventing excessive wastewater from being stored in tank 1, or even submerging the paddle 403 and the wire mesh demister 15, thus affecting the wastewater treatment effect. When there is too much wastewater stored in tank 1, the wastewater will be discharged from overflow pipe 12.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-gravity and multidimensional advanced oxidation wastewater treatment device, comprising a tank (1), characterized in that: The top of the tank (1) is fitted with a top plate (2), and the top of the top plate (2) is fitted with an mounting plate (3). The top of the mounting plate (3) is fitted with a stirring mechanism (4). The tank (1) is equipped with a packing mechanism (5), an oxidation mechanism (6), and a photocatalytic mechanism (7). The packing mechanism (5) includes an assembly frame (501) fixedly connected to the inside of the tank (1). A coating layer plate (502) is fixedly connected to the outside of the assembly frame (501). A packing cavity is formed between the assembly frame (501) and the coating layer plate (502). A packing layer (503) is provided inside the packing cavity. The outside of the tank (1) is fixedly connected to the coating layer plate (502). The tank (1) is fixedly connected to a packing feed pipe (504) and a packing discharge pipe (505); the oxidation mechanism (6) includes an aeration pipe (601) installed at the bottom of the inner cavity of the tank (1), an ozone emitter (602) fixedly connected to the top of the aeration pipe (601), an ozone inlet pipe (603) fixedly connected to the outside of the aeration pipe (601), and an exhaust pipe (604) fixedly connected to the top of the tank (1); the photocatalytic mechanism (7) includes a lamp sleeve (701) installed inside the tank (1), and an ultraviolet lamp (702) installed inside the lamp sleeve (701); a circulation mechanism (8) is installed on the outside of the tank (1).

2. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 1, characterized in that: The coating layer (502) is made of titanium dioxide.

3. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 1, characterized in that: The filler layer (503) is composed of granular activated carbon particle electrode filler.

4. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 1, characterized in that: The lamp sleeve (701) is provided in a plurality of such lamp sleeves (701) arranged in a ring at equal intervals, and the lamp sleeve (701) partially penetrates the filler layer (503).

5. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 1, characterized in that: The tank (1) is equipped with a water distribution pipe (9) inside. A spiral nozzle (10) is fixedly connected to the bottom of the water distribution pipe (9). Several spiral nozzles (10) are provided. An inlet pipe (11) is fixedly connected to the outside of the water distribution pipe (9). The inlet pipe (11) passes through the tank (1).

6. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 1, characterized in that: An overflow pipe (12) is fixedly connected to the top of the outer side of the tank (1), and a circulating pump pipe (13) is fixedly connected to the bottom of the outer side of the tank (1). The circulation mechanism (8) includes a circulating pump body (801) installed between the inlet pipe (11) and the circulating pump pipe (13). A guide pipe (802) is fixedly connected between the input end of the circulating pump body (801) and the circulating pump pipe (13). A return pipe (803) is fixedly connected to the output end of the circulating pump body (801). 2) A manual valve (804) is fixedly connected to the outside of the return pipe (803), and a one-way check valve (805) is fixedly connected to the outside of the return pipe (803); the circulation mechanism (8) also includes a drain pipe (806) fixedly connected between the output end of the return pipe (803) and the inlet pipe (11), and an inlet pipe (807) is fixedly connected to the top of the drain pipe (806), and an electric valve (808) is fixedly connected to the outside of both the drain pipe (806) and the inlet pipe (807).

7. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 5, characterized in that: The stirring mechanism (4) includes a servo motor (401) fixedly connected to the top of the mounting plate (3). The output end of the servo motor (401) is fixedly connected to a rotating shaft (402). The bottom of the rotating shaft (402) is fixedly connected to a blade (403). The blade (403) is located at the bottom of the water distribution pipe (9).

8. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 5, characterized in that: A partition (14) is fixedly connected to the top of the inner cavity of the tank (1). Both the assembly frame (501) and the partition (14) are made of porous plate structure. A wire mesh demister (15) is fixedly connected to the top of the partition (14). The wire mesh demister (15) is located at the top of the water distribution pipe (9).

9. The supergravity and multidimensional advanced oxidation wastewater treatment device according to claim 6, characterized in that: A level gauge connector (16) is fixedly connected to the bottom of the outer side of the tank (1). A level gauge body (17) is installed on the outer side of the level gauge connector (16). A manual valve (804) is also installed on the outer side of the level gauge body (16).

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