Micro-nano bubble reinforced wastewater ozone oxidation treatment device

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a micro-nano bubble reinforced wastewater ozone oxidation treatment device which comprises a treatment box, a wastewater cavity and a clear water cavity, and a wastewater treatment device is arranged in the treatment box. According to the micro-nano bubble reinforced wastewater ozone oxidation treatment device, by arranging the treatment mechanism, when the concentration of pollutants in wastewater is relatively high, cutting holes of an outer cutting net and an inner cutting net coincide by rotating the outer cutting net, so that bubbles are cut into micro-nano bubbles with smaller diameters, and when the concentration of pollutants in the wastewater is relatively low, the micro-nano bubbles are cut into micro-nano bubbles with smaller diameters. By rotating the outer cutting net by 15 degrees, the cutting holes formed in the outer cutting net are aligned with the strip-shaped grooves, at the moment, the micro-nano bubbles with large diameters can be cut, different sewage treatment requirements are met, secondary cutting of the micro-nano bubbles is achieved, micron-sized bubbles which do not fully participate in reaction are cut into micro-nano bubbles with smaller diameters, and the micro-nano bubbles with large diameters can be obtained. Therefore, the residence time of the ozone in water is prolonged, and the ozone utilization rate is indirectly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a wastewater ozone oxidation treatment device enhanced by micro-nano bubbles. Background Art

[0002] With the rapid development of industry, the environmental pollution problem caused by wastewater discharge is becoming increasingly serious. Wastewater has a complex composition and contains a large number of difficult-to-degrade organic pollutants. Traditional treatment methods are difficult to achieve ideal purification effects. As an efficient wastewater treatment technology, ozone oxidation has the advantages of strong oxidation ability, fast reaction speed, and no secondary pollution. It has been widely used in the field of wastewater treatment. However, the solubility of ozone in water is low and the mass transfer efficiency is poor, resulting in low ozone utilization rate, which limits its application in actual engineering. How to improve the solubility and mass transfer efficiency of ozone in water has become a key issue in the treatment of wastewater by ozone oxidation.

[0003] The emergence of micro-nano bubble technology offers a new approach to solving these problems. Micro-nano bubbles are tiny bubbles with diameters ranging from tens of micrometers to hundreds of nanometers. They possess characteristics such as large specific surface area, high internal pressure, slow rise rate, and long residence time. These properties enable micro-nano bubbles to significantly increase the contact area and contact time between ozone and wastewater, improving ozone solubility and mass transfer efficiency in water, thereby enhancing the ozone oxidation treatment effect on wastewater. Although some wastewater treatment devices currently combine micro-nano bubbles with ozone oxidation, some micron-sized bubbles may flow with the water to the outlet due to buoyancy, preventing them from fully participating in the reaction, thus affecting ozone utilization. Summary of the Invention

[0004] The purpose of the present invention is to provide a wastewater ozone oxidation treatment device enhanced by micro-nano bubbles to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a micro-nano bubble enhanced wastewater ozone oxidation treatment device, comprising a treatment box, a wastewater chamber and a clean water chamber, wherein the wastewater chamber is opened on the left side of the treatment box, and the clean water chamber is opened on the right side of the treatment box. A wastewater treatment device is arranged inside the treatment box, and the wastewater treatment device includes a treatment mechanism, a stirring mechanism and an anti-blocking mechanism.

[0006] The processing mechanism is arranged inside the clean water chamber, the stirring mechanism is arranged inside the clean water chamber, and the anti-blocking mechanism is arranged inside the waste water chamber.

[0007] The treatment mechanism includes an oxygen tank, an ozone generator, a micro-nano bubble reactor, a pump body, a water inlet pipe, a drain pipe, an inner cutting net, an outer cutting net, a block, a block, a sleeve, a spring and a ferrule. The oxygen tank is installed on the back of the treatment box, the ozone generator is connected to the left side of the oxygen tank, the micro-nano bubble reactor is connected to the back of the ozone generator, the pump body is installed on the left side of the micro-nano bubble reactor, one end of the water inlet pipe is connected to the output end of the pump body and the other end extends to the inside of the wastewater chamber, one end of the drain pipe is connected to the top of the micro-nano bubble reactor, the inner cutting net is installed at the other end of the drain pipe, the outer cutting net is rotatably connected to the outside of the inner cutting net, the block is fixedly installed on the back of the outer cutting net, the sleeve is fixedly installed on the outside of the drain pipe, one end of the spring is fixedly installed on the inner wall of the sleeve, and the ferrule is fixedly installed at the other end of the spring and slidably connected to the outside of the drain pipe.

[0008] Preferably, the inner cutting net and the outer cutting net are provided with cutting holes distributed at equal angles, and the angle between the cutting holes is thirty degrees. The aperture of the inner cutting net is smaller than that of the outer cutting net. The surface of the inner cutting net is provided with strip grooves between adjacent cutting holes. When the pollutant concentration in the wastewater is high, the outer cutting net is rotated so that the cutting holes of the outer cutting net and the inner cutting net coincide with each other, thereby cutting the bubbles into micro-nano bubbles with smaller diameters. When the pollution concentration in the wastewater is low, the outer cutting net is rotated fifteen degrees so that the cutting holes of the outer cutting net are aligned with the strip grooves. At this time, the bubbles can be cut into micro-nano bubbles with larger diameters to meet different sewage treatment needs.

[0009] Preferably, the outer surface of the clamping block is provided with clamping grooves distributed at equal angles, and the inner wall of the clamping sleeve is provided with protrusions distributed at equal angles. The position of the external cutting net is fixed by clamping the clamping sleeve and the clamping block.

[0010] Preferably, the treatment mechanism further includes a second pump body and a reflux pipe, the second pump body is installed on the right side of the micro-nano bubble reactor, one end of the reflux pipe is connected to the output end of the second pump body and the other end extends to the inside of the clean water chamber.

[0011] Preferably, the drainage volume of the drainage pipe is greater than the sewage return volume of the return pipe, and the partially treated sewage in the clean water chamber is returned to the micro-nano bubble reactor through the second pump body to improve the gas-liquid mixing effect and the generation efficiency of micro-nano bubbles, thereby improving the ozone utilization efficiency.

[0012] Preferably, the stirring mechanism includes motor 1, stirring rod 1, a bracket, stirring rod 2, a large gear and a small gear. The motor 1 is fixedly installed on the right side of the front of the processing box, the stirring rod 1 is fixedly installed on the output end of the motor 1, the bracket is fixedly installed on the outside of stirring rod 1, the stirring rod 2 is rotatably connected to the inside of the bracket, the large gear is fixedly installed on the inner wall of the clean water chamber and is located on the outside of stirring rod 1, and the small gear is fixedly installed on the front end of stirring rod 2.

[0013] Preferably, the large gear and the small gear are engaged with each other. When the wastewater is stirred by starting the motor 1 to drive the stirring rod 1 to rotate, the stirring rod 1 drives the bracket to rotate, so that the three stirring rods 2 revolve around the stirring rod 1, and the small gear is engaged with the large gear, so that the stirring rod 2 rotates to stir the wastewater, forming a three-dimensional flow field, causing the sewage to form turbulence, and at the same time, the rotation of the stirring rod 2 and the stirring rod 1 generate shear force to further break up the agglomerated bubbles, promote the diffusion of ozone from the inside of the bubbles to the water body, and reduce the loss of ozone due to insufficient reaction.

[0014] Preferably, the anti-blocking mechanism includes a filter cartridge, motor 2, a threaded rod, a limit rod, a ring block and a brush. The filter cartridge is installed at the end of the water inlet pipe away from the pump body 1, the motor 2 is fixedly installed on the left side of the treatment box, the threaded rod is fixedly installed at the output end of the motor 2, the limit rod is fixedly installed inside the wastewater chamber, the ring block is installed on the outside of the threaded rod and the limit rod, and the brush is installed on the inside of the ring block.

[0015] Preferably, an internal thread is provided at the connection between the ring block and the threaded rod, and the ring block is threadedly connected to the outside of the threaded rod. By starting motor 2 to drive the threaded rod to rotate and connect it to the ring block, the ring block drives the brush to move in a straight line along the limit rod to scrape off impurities attached to the surface of the filter cartridge to prevent the filter cartridge from being blocked.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This micro-nano bubble-enhanced wastewater ozone oxidation treatment device is equipped with a treatment mechanism. When the pollutant concentration in the wastewater is high, the outer cutting net is rotated to make the cutting holes of the outer cutting net and the inner cutting net overlap, thereby cutting the bubbles into micro-nano bubbles with smaller diameters. When the pollutant concentration in the wastewater is low, the outer cutting net is rotated 15 degrees to align the cutting holes of the outer cutting net with the strip grooves. At this time, the bubbles can be cut into micro-nano bubbles with larger diameters, meeting different sewage treatment needs. It achieves secondary cutting of micro-nano bubbles, cutting micron-sized bubbles that have not fully participated in the reaction into micro-nano bubbles with smaller diameters, thereby extending their residence time in the water and indirectly improving ozone utilization.

[0017] 2. The micro-nano bubble enhanced wastewater ozone oxidation treatment device is equipped with a treatment mechanism to pump part of the treated wastewater in the clean water chamber back into the micro-nano bubble reactor through pump body 2, thereby improving the gas-liquid mixing effect and the generation efficiency of micro-nano bubbles, thereby improving the ozone utilization efficiency.

[0018] 3. This micro-nano bubble-enhanced wastewater ozone oxidation treatment device is equipped with a stirring mechanism. By starting motor 1 to drive stirring rod 1 to rotate, the wastewater is stirred. Stirring rod 1 drives the bracket to rotate, causing three stirring rods 2 to revolve around stirring rod 1. The small gear meshes with the large gear, thereby causing stirring rod 2 to rotate and stir the wastewater, forming a three-dimensional flow field and causing the wastewater to form turbulent flow. At the same time, the rotation of stirring rod 2 and stirring rod 1 generate shear force to further break up agglomerated bubbles, promote the diffusion of ozone from the interior of the bubbles into the water body, and reduce the loss of ozone due to insufficient reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the processing box of the present invention; Figure 4 It is a schematic structural diagram of the processing mechanism of the present invention; Figure 5 This is a disassembled view of the connection between the inner cutting net and the outer cutting net of the present invention; Figure 6 This is a schematic diagram of the internal structure of the ferrule of the present invention; Figure 7 Schematic diagram of the stirring mechanism structure of the present invention; Figure 8 It is a structural schematic diagram of the anti-blocking mechanism of the present invention.

[0021] In the figure: 1. treatment box; 2. wastewater chamber; 3. clean water chamber; 401. oxygen tank; 402. ozone generator; 403. micro-nano bubble reactor; 404. pump body 1; 405. water inlet pipe; 406. drain pipe; 407. inner cutting net; 408. outer cutting net; 409. clamping block; 410. sleeve; 411. spring; 412. ferrule; 413. pump body 2; 414. return pipe; 501. motor 1; 502. stirring rod 1; 503. bracket; 504. stirring rod 2; 505. large gear; 506. small gear; 601. filter cartridge; 602. motor 2; 603. threaded rod; 604. limit rod; 605. ring block; 606. brush. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] See also Figures 1-8 The present invention provides a technical solution: a micro-nano bubble enhanced wastewater ozone oxidation treatment device, comprising a treatment box 1, a wastewater chamber 2 and a clean water chamber 3, the wastewater chamber 2 is opened on the left side of the treatment box 1, and the clean water chamber 3 is opened on the right side of the treatment box 1. A wastewater treatment device is arranged inside the treatment box 1, and the wastewater treatment device includes a treatment mechanism, a stirring mechanism and an anti-blocking mechanism.

[0025] The processing mechanism is arranged inside the clean water chamber 3 , the stirring mechanism is arranged inside the clean water chamber 3 , and the anti-blocking mechanism is arranged inside the waste water chamber 2 .

[0026] The treatment mechanism includes an oxygen tank 401, an ozone generator 402, a micro-nano bubble reactor 403, a pump body 404, a water inlet pipe 405, a drain pipe 406, an inner cutting net 407, an outer cutting net 408, a clamping block 409, a clamping block 409, a sleeve 410, a spring 411 and a ferrule 412. The oxygen tank 401 is installed on the back of the treatment box 1. The oxygen tank 401 is used to store compressed oxygen and provide a gas source for the ozone generator 402. The ozone generator 402 is connected to the left side of the oxygen tank 401. The ozone generator 402 uses high-frequency and high-voltage discharge technology to convert oxygen into ozone. The micro-nano bubble reactor 403 is connected to the back of the ozone generator 402 to mix ozone with wastewater and generate micro-nano bubbles. The pump body 404 is installed on the left side of the micro-nano bubble reactor 403. One end of the water inlet pipe 405 is connected to the output end of the pump body 404 and the other end extends to the inside of the wastewater chamber 2. One end of the drain pipe 406 is connected to the top of the micro-nano bubble reactor 403. The inner cutting net 407 is installed at the other end of the drain pipe 406. When the micro-nano bubbles overflow from the inner cutting net 407 or the outer cutting net 408, the micro-nano bubbles can be cut into micro-nano bubbles of smaller diameter through the cutting holes. The outer cutting net 408 is rotatably connected to the inner cutting net. On the outside of the cutting net 407, the inner cutting net 407 and the outer cutting net 408 are provided with cutting holes distributed at equal angles, and the angle between the cutting holes is thirty degrees. The aperture of the inner cutting net 407 is smaller than that of the outer cutting net 408. The surface of the inner cutting net 407 is provided with strip grooves between adjacent cutting holes. When the concentration of pollutants in the wastewater is high, the outer cutting net 408 is rotated so that the cutting holes of the outer cutting net 408 and the inner cutting net 407 coincide with each other, thereby cutting the bubbles into micro-nano bubbles with smaller diameters. When the concentration of pollutants in the wastewater is low, the outer cutting net 408 is rotated fifteen degrees so that the cutting holes opened by the outer cutting net 408 are aligned. The cut holes are aligned with the strip grooves, and the bubbles can be cut into micro-nano bubbles with larger diameters to meet different sewage treatment needs. The card block 409 is fixedly installed on the back of the external cutting net 408. The outer surface of the card block 409 is provided with card grooves distributed at equal angles, and the inner wall of the card sleeve 412 is provided with protrusions distributed at equal angles. The card sleeve 412 is connected with the card block 409 to achieve the fixation of the position of the external cutting net 408. The sleeve 410 is fixedly installed on the outside of the drain pipe 406, one end of the spring 411 is fixedly installed on the inner wall of the sleeve 410, and the card sleeve 412 is fixedly installed on the other end of the spring 411 and is slidably connected to the outside of the drain pipe 406.

[0027] The treatment mechanism also includes a second pump body 413 and a return pipe 414. The second pump body 413 is installed on the right side of the micro-nano bubble reactor 403. One end of the return pipe 414 is connected to the output end of the second pump body 413 and the other end extends into the clean water chamber 3. The drainage volume of the drain pipe 406 is greater than the sewage return volume of the return pipe 414. The partially treated sewage in the clean water chamber 3 is returned to the micro-nano bubble reactor 403 through the second pump body 413 to improve the gas-liquid mixing effect and the efficiency of micro-nano bubble generation, thereby improving the ozone utilization efficiency.

[0028] The stirring mechanism includes a motor 501, a stirring rod 502, a bracket 503, a stirring rod 2 504, a large gear 505 and a small gear 506. The motor 501 is fixedly installed on the right side of the front of the processing box 1, the stirring rod 1 502 is fixedly installed on the output end of the motor 1 501, the bracket 503 is fixedly installed on the outside of the stirring rod 1 502, the stirring rod 2 504 is rotatably connected to the inside of the bracket 503, the large gear 505 is fixedly installed on the inner wall of the clean water chamber 3 and is located on the outside of the stirring rod 1 502. The large gear 505 and the small gear 506 are engaged with each other, and the stirring is driven by starting the motor 501. When rod 1 502 rotates to stir the wastewater, stirring rod 1 502 drives bracket 503 to rotate, causing three stirring rods 2 504 to revolve around stirring rod 1 502, and the small gear 506 engages with the large gear 505, so that stirring rod 2 504 rotates to stir the wastewater, forming a three-dimensional flow field, causing the sewage to form turbulence. At the same time, the rotation of stirring rod 2 504 and stirring rod 1 502 generate shear force to further break up the agglomerated bubbles, promote the diffusion of ozone from the inside of the bubbles to the water body, and reduce the loss of ozone due to insufficient reaction. The small gear 506 is fixedly installed at the front end of stirring rod 2 504.

[0029] The anti-blocking mechanism includes a filter cartridge 601, a second motor 602, a threaded rod 603, a limiting rod 604, a ring block 605 and a brush 606. The filter cartridge 601 is installed at the end of the water inlet pipe 405 away from the pump body 1 404. The filter cartridge 601 filters the particles in the wastewater to prevent the particles from wearing the micro-nano bubble reactor 403. The second motor 602 is fixedly installed on the left side of the treatment box 1, the threaded rod 603 is fixedly installed on the output end of the second motor 602, and the limiting rod 604 is fixedly installed inside the wastewater chamber 2. The ring block 605 is installed on the outside of the threaded rod 603 and the limit rod 604. An internal thread is provided at the connection between the ring block 605 and the threaded rod 603, and the ring block 605 is threadedly connected to the outside of the threaded rod 603. By starting the second motor 602, the threaded rod 603 is driven to rotate and is threadedly connected to the ring block 605, so that the ring block 605 drives the brush 606 to move in a straight line along the limit rod 604, scraping off impurities attached to the surface of the filter cartridge 601 to prevent the filter cartridge 601 from being blocked. The brush 606 is installed on the inside of the ring block 605.

[0030] During use, the wastewater to be treated is passed into the wastewater chamber 2, and the cutting net is selected according to the concentration of wastewater pollutants. When the concentration of pollutants in the wastewater is high, the spring 411 is squeezed by pushing the ferrule 412 to disengage the ferrule 412 from the slot opened by the block 409, and then the outer cutting net 408 is rotated to make the cutting hole of the outer cutting net 408 coincide with the cutting hole of the inner cutting net 407. Subsequently, the ferrule 412 is pushed to engage with the block 409 under the action of the spring 411 to fix the position of the outer cutting net 408. When the pollution concentration in the wastewater is low, the cutting hole opened in the outer cutting net 408 is aligned with the strip groove by rotating the outer cutting net 408 fifteen degrees. At this time, the bubbles can be cut into micro-nano bubbles with larger diameters to meet different sewage treatment needs.

[0031] Then, the oxygen tank 401 is turned on to supply oxygen to the ozone generator 402. The ozone generator 402 generates ozone which enters the micro-nano bubble reactor 403. Then, the pump body 1 404 is turned on to filter the wastewater to be treated through the filter cartridge 601 and then transport it to the micro-nano bubble reactor 403 through the water inlet pipe 405. The micro-nano bubble reactor 403 efficiently mixes the ozone with the wastewater and generates micro-nano bubbles which are discharged from the drain pipe 406. At the same time, the micron-sized bubbles that have not fully participated in the reaction are cut into micro-nano bubbles with smaller diameters under the action of the internal cutting net 407, thereby extending their residence time in the water and indirectly improving the utilization rate of ozone. At the same time, the pump body 2 413 is started to pump the partially treated sewage in the clean water chamber 3 back to the micro-nano bubble reactor 403. Inside the nanobubble reactor 403, to improve the gas-liquid mixing effect and the efficiency of generating micro-nano bubbles, thereby improving the efficiency of ozone utilization, the motor 1 501 is then started to drive the stirring rod 1 502 to rotate and stir the wastewater. At the same time, the stirring rod 1 502 drives the bracket 503 to rotate, causing the three stirring rods 2 504 to revolve around the stirring rod 1 502. The small gear 506 meshes with the large gear 505, thereby causing the stirring rod 2 504 to rotate and stir the wastewater, forming a three-dimensional flow field and causing the wastewater to form turbulent flow. At the same time, the rotation of the stirring rod 2 504 and the stirring rod 1 502 generate shear force to further break up agglomerated bubbles, promote the diffusion of ozone from the interior of the bubbles into the water body, and reduce the loss of ozone due to insufficient reaction.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater ozone oxidation treatment device enhanced by micro-nano bubbles, comprising a treatment box (1), a wastewater chamber (2) and a clean water chamber (3), wherein the wastewater chamber (2) is opened on the left side of the treatment box (1), and the clean water chamber (3) is opened on the right side of the treatment box (1), characterized in that: A wastewater treatment device is provided inside the treatment box (1), and the wastewater treatment device comprises a treatment mechanism, a stirring mechanism and an anti-blocking mechanism; The processing mechanism is arranged inside the clean water chamber (3), the stirring mechanism is arranged inside the clean water chamber (3), and the anti-blocking mechanism is arranged inside the waste water chamber (2); The treatment mechanism comprises an oxygen tank (401), an ozone generator (402), a micro-nano bubble reactor (403), a pump body (404), a water inlet pipe (405), a drain pipe (406), an inner cutting net (407), an outer cutting net (408), a block (409), a block (409), a sleeve (410), a spring (411) and a sleeve (412), wherein the oxygen tank (401) is mounted on the back of the treatment box (1), the ozone generator (402) is connected to the left side of the oxygen tank (401), the micro-nano bubble reactor (403) is connected to the back of the ozone generator (402), the pump body (404) is mounted on the left side of the micro-nano bubble reactor (403), the water inlet pipe (405), the drain pipe (406), the inner cutting net (407), the ... the block (409), the block (409), the sleeve (410), the spring (411) and the sleeve (412), One end of the tube (405) is connected to the output end of the pump body (404) and the other end extends to the inside of the wastewater chamber (2); one end of the drain pipe (406) is connected to the top of the micro-nano bubble reactor (403); the inner cutting net (407) is installed at the other end of the drain pipe (406); the outer cutting net (408) is rotatably connected to the outside of the inner cutting net (407); the block (409) is fixedly installed on the back of the outer cutting net (408); the sleeve (410) is fixedly installed on the outside of the drain pipe (406); one end of the spring (411) is fixedly installed on the inner wall of the sleeve (410); the sleeve (412) is fixedly installed on the other end of the spring (411) and is slidably connected to the outside of the drain pipe (406).

2. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 1, characterized in that: The inner cutting net (407) and the outer cutting net (408) are provided with cutting holes distributed at equal angles, and the angle between the cutting holes is thirty degrees. The aperture of the inner cutting net (407) is smaller than the aperture of the outer cutting net (408), and the surface of the inner cutting net (407) is provided with strip grooves between adjacent cutting holes.

3. The wastewater ozone oxidation treatment device enhanced by micro-nano bubbles according to claim 1, characterized in that: The outer surface of the clamping block (409) is provided with clamping grooves distributed at equal angles, and the inner wall of the clamping sleeve (412) is provided with protrusions distributed at equal angles.

4. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 1, characterized in that: The treatment mechanism further comprises a second pump body (413) and a reflux pipe (414), wherein the second pump body (413) is installed on the right side of the micro-nano bubble reactor (403), and one end of the reflux pipe (414) is connected to the output end of the second pump body (413) and the other end extends into the interior of the clean water chamber (3).

5. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 4, characterized in that: The drainage volume of the drainage pipe (406) is greater than the sewage return volume of the return pipe (414).

6. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 1, characterized in that: The stirring mechanism comprises a motor 1 (501), a stirring rod 1 (502), a bracket (503), a stirring rod 2 (504), a large gear (505) and a small gear (506), wherein the motor 1 (501) is fixedly mounted on the right side of the front of the treatment box (1), the stirring rod 1 (502) is fixedly mounted on the output end of the motor 1 (501), the bracket (503) is fixedly mounted on the outside of the stirring rod 1 (502), the stirring rod 2 (504) is rotatably connected to the inside of the bracket (503), the large gear (505) is fixedly mounted on the inner wall of the clean water chamber (3) and is located on the outside of the stirring rod 1 (502), and the small gear (506) is fixedly mounted on the front end of the stirring rod 2 (504).

7. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 6, characterized in that: The large gear (505) and the small gear (506) are meshed with each other.

8. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 1, characterized in that: The anti-blocking mechanism comprises a filter cartridge (601), a second motor (602), a threaded rod (603), a limiting rod (604), a ring block (605) and a brush (606); the filter cartridge (601) is mounted on an end of the water inlet pipe (405) away from the first pump body (404); the second motor (602) is fixedly mounted on the left side of the treatment box (1); the threaded rod (603) is fixedly mounted on the output end of the second motor (602); the limiting rod (604) is fixedly mounted inside the wastewater chamber (2); the ring block (605) is mounted on the outside of the threaded rod (603) and the limiting rod (604); and the brush (606) is mounted on the inside of the ring block (605).

9. The micro-nano bubble enhanced wastewater ozone oxidation treatment device according to claim 8, characterized in that: An internal thread is provided at the connection between the ring block (605) and the threaded rod (603), and the ring block (605) is threadedly connected to the outside of the threaded rod (603).

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