An ozone catalytic oxidation sewage treatment device

Abstract

The present invention discloses an ozone catalytic oxidation sewage treatment device, comprising a catalytic oxidation reaction unit and an ozone generating unit connected to the front of the catalytic oxidation reaction unit. The catalytic oxidation reaction unit includes a reactor containing a solid catalyst support. The ozone generating unit is capable of regulating the delivery of ozone to the reactor in the catalytic oxidation reaction unit, and is capable of ensuring that the mass concentration of ozone added by the ozone generator to the reactor is 1 to 4 times the mass concentration of COD in the influent sewage. The rear of the catalytic oxidation reaction unit is connected to a tail gas destruction unit, which is capable of reducing ozone exiting the rear of the catalytic oxidation reaction unit into oxygen. The present invention solves the problems of solid catalysts in conventional ozone catalytic oxidation treatment devices, such as easy compaction or abrasion, short service life, and low ozone utilization, by ensuring that ozone in the tail gas can be reduced and preventing ozone from escaping into the air.

Description

Technical Field

[0001] The present invention relates to the technical field of ozone catalytic oxidation sewage treatment devices, and in particular to an ozone catalytic oxidation sewage treatment device. Background Art

[0002] Advanced oxidation technology is one of the most promising methods for treating refractory organic wastewater. As one of the advanced oxidation technologies, ozone catalytic oxidation has gradually been widely used in many aspects of wastewater treatment. In recent years, some organic pollutants have appeared in polluted water that are difficult to degrade using ordinary ozone oxidation alone. People use heterogeneous and solid catalysts to improve the oxidation capacity of ordinary ozone. Ozone catalytic oxidation has the advantages of good treatment effect, strong stability, and no secondary pollution. However, in actual use, the solid catalyst in the ozone catalytic oxidation tower or ozone catalytic oxidation bed is easy to compact or abrade, and has a short service life, which makes the effective ingredients on the solid catalyst easy to lose or not fully utilized, resulting in low ozone utilization and low pollutant removal rate. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem that when ozone catalytic oxidation is used, the solid catalyst in the ozone catalytic oxidation tower or ozone catalytic oxidation bed is easily compacted or abraded, has a short service life, and the effective ingredients on the solid catalyst are easily lost or not fully utilized, resulting in low ozone utilization and low pollutant removal rate. The present invention solves the problem that the solid catalyst in ozone catalytic oxidation is easily compacted or abraded, has a short service life, and has a low ozone utilization rate. It ensures that the tail gas destruction unit can completely reduce the ozone in the tail gas, avoids ozone from flowing into the air, and prevents gas reflux from forming at the rear end of the tail gas destruction device in the tail gas destruction unit. It is suitable for the treatment of difficult-to-degrade organic wastewater and is promoted and used as an ozone catalytic oxidation wastewater treatment device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An ozone catalytic oxidation sewage treatment device includes a catalytic oxidation reaction unit and an ozone generating unit connected to the front of the catalytic oxidation reaction unit, the catalytic oxidation reaction unit has a reactor, the ozone generating unit can adjust and deliver ozone to the reactor in the catalytic oxidation reaction unit, and the rear of the catalytic oxidation reaction unit is connected to a tail gas destruction unit. The device also includes:

[0006] The reactor has a packing area inside, in which a support is provided. The support is a porous hollow structure. The total area of ​​the holes on a single support is 20% to 60% of the total surface area of ​​the single support. A solid catalyst is provided in the support. The diameter of the holes on the support is no larger than the particle size of the solid catalyst. The volume of a single support is 5 to 50 times that of a single solid catalyst. There are gaps between adjacent support members. The support can prevent the solid catalyst from being compacted or abraded in the reactor, thereby extending the service life of the solid catalyst.

[0007] The supporting member can be made of an oxidation-corrosion-resistant material, and the oxidation-corrosion-resistant material can be a glass material or a high molecular polymer material.

[0008] The sewage stays in the reactor for no more than 30 minutes;

[0009] The outside of the reactor is connected with a circulation pipeline, and the circulation flow rate can be adjusted to 0.1 to 20 times the water inlet flow rate through a circulation pump on the circulation pipeline.

[0010] In order to allow water to flow in and out, which is beneficial to the discharge of tail water and the formation of water circulation, a drain outlet is further provided on the top side wall of the reactor, and the drain outlet is connected to the tail water discharge pipe.

[0011] The ozone generating unit has an ozone generator and may be provided with an ozone concentration detector;

[0012] The ozone generator can adjust the mass concentration of ozone added into the reactor to be 1 to 4 times the mass concentration of COD in the influent sewage.

[0013] In order to ensure that ozone and sewage are fully mixed before entering the reactor, the catalytic oxidation reaction unit further includes a regulating tank, a water pump, a reactor, and a water and air distribution device. One end of the water pump is connected to the regulating tank, and the other end is connected to the water and air distribution device on the inner side of the bottom of the reactor;

[0014] The water and gas distribution device is arranged on the inner side of the bottom of the reactor. The water and gas distribution device is connected to the water pump in the catalytic oxidation reaction unit and the ozone generator in the ozone generation unit through pipelines. The water and gas distribution device can allow ozone and sewage to be fully mixed before entering the reactor.

[0015] In order to make the overall water and air distribution effect of the water and air distribution device better, further, the water and air distribution device can include an air distribution device and a water distribution device, and the air distribution device and the water distribution device are connected to each other as a whole. The air distribution device can be one or more combinations of an aeration disk, a tubular aerator, a jet aerator, and a gas-liquid mixing device, and the water distribution device can be one or more combinations of a perforated pipe, a nozzle, a filter head, and a rotary water distribution head.

[0016] In order to solve the problem of low ozone utilization rate in ordinary ozone catalytic oxidation treatment devices and improve the ozone utilization rate, the reactor further includes a circulation pipeline. The circulation pipeline can be formed by connecting a grid, a circulation liquid outlet, a circulation pump, and a circulation liquid inlet through a pipeline. The circulation pump is connected to the circulation liquid outlet and the circulation liquid inlet through a pipeline. A grid is provided on the inner side of the circulation liquid inlet. The circulation pipeline can effectively improve the ozone utilization rate, thereby solving the problem of low ozone utilization rate in ordinary ozone catalytic oxidation treatment devices.

[0017] The circulation pipeline can form a circulating mixed liquid with ozone and sewage in the reactor. The flow of the circulating mixed liquid can continuously carry away free radicals generated on the surface of the solid catalyst in the support member, making it easier for the surface of the solid catalyst to continuously generate hydroxyl radicals, which can further improve the catalytic oxidation treatment effect of the sewage.

[0018] In order to prevent the circulation pump in the circulation pipeline from idling due to the circulation inlet being blocked, so as to improve the overall circulation mixing effect in the circulation pipeline, a grid is further provided in the circulation inlet of the circulation pipeline. The grid can prevent the support member with the solid catalyst from blocking the circulation inlet, thereby preventing the circulation pump from idling due to the circulation inlet being blocked.

[0019] The circulating pump can be one or a combination of a vortex pump, a centrifugal pump, a vertical pump, and an axial flow pump;

[0020] In order to improve the catalytic oxidation treatment effect of the sewage in the reactor, further, a coupling agent can be provided inside the reactor within the area where the solid catalyst support is provided, and the coupling agent can improve the catalytic oxidation treatment effect of the sewage in the reactor;

[0021] The coupling agent can be one or a combination of hydrogen peroxide, transition metal ions, persulfate (PMS), and persulfate (PS); the dosage of the hydrogen peroxide is 0-0.5%, the dosage of the transition metal ions is 0-0.2%, the dosage of the persulfate (PMS) is 0-0.2%, and the dosage of the persulfate (PS) is 0-0.2%.

[0022] In order to prevent ozone containing water vapor from oxidizing and corroding the exhaust gas destruction device in the exhaust gas destruction unit and to avoid the formation of gas backflow at the rear end of the exhaust gas destruction device, the exhaust gas destruction unit is further provided with a demister and an exhaust gas destruction device. The front end of the demister is connected to the rear end of the reactor in the catalytic oxidation reaction unit, and the rear end of the demister is connected to the exhaust gas destruction device. The demister can remove water vapor contained in the ozone flowing out of the rear end of the reactor in the catalytic oxidation reaction unit, thereby preventing ozone containing water vapor from oxidizing and corroding the exhaust gas destruction device. The exhaust gas destruction device can reduce ozone to oxygen and prevent ozone from entering the air outside the exhaust gas destruction device.

[0023] A fan can also be provided at the rear end of the exhaust gas destruction device, which can make the gas discharged from the rear end of the exhaust gas destruction device discharge more smoothly, avoid the formation of negative pressure inside and outside the exhaust gas destruction device, and form gas reflux at the rear end of the exhaust gas destruction device.

[0024] Compared with the prior art, the present invention provides an ozone catalytic oxidation sewage treatment device, which has the following beneficial effects:

[0025] 1. The ozone catalytic oxidation sewage treatment device, by arranging a support inside the reactor and arranging the solid catalyst inside the support, can prevent the solid catalyst from being compacted or abraded in the reactor, thereby extending the service life of the solid catalyst. This solves the problem of easy compaction or abrasion and short service life of the solid catalyst in the ozone catalytic oxidation tower or ozone catalytic oxidation bed in ordinary ozone catalytic devices;

[0026] 2. The ozone catalytic oxidation sewage treatment device is provided with a circulation pipeline outside the reactor. The circulation pipeline can form a circulating mixed liquid of ozone and sewage in the reactor. The flow of the circulating mixed liquid continuously removes the free radicals continuously generated on the surface of the solid catalyst in the support member, making it easier for the surface of the solid catalyst to continuously generate hydroxyl free radicals, thereby achieving a good catalytic oxidation treatment effect on the sewage.

[0027] 3. The ozone catalytic oxidation sewage treatment device is provided with a demister and a tail gas destruction device connected to the rear part of the reactor in the catalytic oxidation reaction unit. The demister is used to remove water vapor from the water vapor-containing ozone to prevent the water vapor-containing ozone from oxidizing and corroding the tail gas destruction device. The tail gas destruction device can reduce the ozone to oxygen to prevent ozone from entering the air outside the tail gas destruction device. A fan is provided at the rear end of the tail gas destruction device. The fan can make the gas discharged from the rear end of the tail gas destruction device discharge more smoothly, avoid the formation of negative pressure inside and outside the tail gas destruction device, and form gas reflux at the rear end of the tail gas destruction device. The tail gas destruction device can collect and decompose the ozone flowing out from the rear end of the reactor without secondary pollution, and at the same time avoid ozone pollution of the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall connection of the main components of an ozone catalytic oxidation sewage treatment device proposed by the present invention;

[0029] Figure 2 This is a schematic top view of the entire supporting member of the ozone catalytic oxidation sewage treatment device proposed by the present invention when no solid catalyst is installed in the supporting member;

[0030] Figure 3 This is a schematic front view of the entire supporting member of the ozone catalytic oxidation sewage treatment device proposed by the present invention when the supporting member is equipped with a solid catalyst.

[0031] In the figure: 1. Ozone generator; 2. Equalization tank; 3. Water pump; 4. Water and gas distribution device; 5. Filling area; 6. Reactor; 7. Tail water discharge pipeline; 8. Grille; 9. Circulation pump; 10. Demister; 11. Tail gas destruction device; 12. Fan; 13. Support; 14. Solid catalyst. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] The present invention will be further described in detail below with reference to examples and specific implementation methods.

[0035] See attached Figure 1 ~Attachment Figure 3 : An ozone catalytic oxidation sewage treatment device, comprising a catalytic oxidation reaction unit and an ozone generating unit connected to the front of the catalytic oxidation reaction unit, the catalytic oxidation reaction unit having a reactor 6, the ozone generating unit being able to regulate and deliver ozone into the reactor 6 in the catalytic oxidation reaction unit, the rear of the catalytic oxidation reaction unit being connected to an exhaust gas destruction unit, and further comprising:

[0036] The reactor 6 is externally connected to an ozone generator 1, which can adjust the ratio of the amount of ozone added to the reactor 6 to the COD mass concentration of the sewage added to the reactor 6 to be in the range of 1 to 4;

[0037] The sewage stays in the reactor 6 for no more than 30 minutes;

[0038] The outside of the reactor 6 is connected to a circulation pipeline, and the circulation flow rate can be adjusted to 0.1 to 20 times the inlet water flow rate through the circulation pump 9 on the circulation pipeline;

[0039] The reactor 6 includes a packing area 5, in which a support member 13 is provided. The support member 13 is a porous hollow structure. The total area of ​​the holes on a single support member 13 is 20% to 60% of the total surface area of ​​the single support member 13. A solid catalyst 14 is provided in the support member 13. The pore diameter of the holes on the support member 13 is not larger than the particle size of the solid catalyst 14. The volume of a single support body 13 is 5 to 50 times that of a single solid catalyst 14. There is a gap between adjacent support members 13. The support member 13 can prevent the solid catalyst 14 from being compacted or abraded in the reactor 6, thereby extending the service life of the solid catalyst 14. The support member 14 in the reactor 6 can be made of an oxidation-resistant material, which can be a glass material or a polymer material.

[0040] A drain outlet is provided on the top side wall of the reactor 6 , and the drain outlet is connected to the tail water discharge pipeline 7 .

[0041] In order to prevent ozone containing water vapor from oxidizing and corroding the exhaust gas destruction device 11 in the exhaust gas destruction unit and to prevent gas backflow from forming at the rear end of the exhaust gas destruction device 11, it is necessary to explain that the exhaust gas destruction unit includes a demister 10 and an exhaust gas destruction device 11. The front end of the demister 10 is connected to the rear end of the reactor 6 in the catalytic oxidation reaction unit, and the rear end of the demister 10 is connected to the exhaust gas destruction device 11. The demister 10 can remove water vapor contained in the ozone flowing out from the rear end of the reactor 6 in the catalytic oxidation reaction unit to prevent ozone containing water vapor from oxidizing and corroding the exhaust gas destruction device 11. The exhaust gas destruction device 11 can reduce ozone to oxygen and prevent ozone from entering the air outside the exhaust gas destruction device 11.

[0042] A fan 12 can also be provided at the rear end of the exhaust gas destruction device 11. The fan 12 can make the gas discharged from the rear end of the exhaust gas destruction device 11 discharge more smoothly, avoid the formation of negative pressure inside and outside the exhaust gas destruction device 11, and form gas reflux at the rear end of the exhaust gas destruction device 11.

[0043] In order to ensure that ozone and sewage are fully mixed before entering the reactor 6, it needs to be explained that the catalytic oxidation reaction unit also has a water and air distribution device 4, which is arranged on the inner side of the bottom of the reactor 6. The water and air distribution device 4 is connected to the water pump 3 in the catalytic oxidation reaction unit and the ozone generator 1 in the ozone generation unit through pipes. The water and air distribution device 4 can ensure that ozone and sewage are fully mixed before entering the reactor 6.

[0044] In order to make the overall water and air distribution effect of the water and air distribution device 4 good, it needs to be further explained that: the water and air distribution device 4 can include an air distribution device and a water distribution device, the air distribution device and the water distribution device are connected to each other as a whole, the air distribution device can be one or more combinations of an aeration disk, a tubular aerator, a jet aerator, and a gas-liquid mixing device, and the water distribution device can be one or more combinations of a perforated pipe, a nozzle, a filter head, and a rotary water distribution head.

[0045] In order to solve the problem of low ozone utilization rate in ordinary ozone catalytic oxidation treatment devices and improve the ozone utilization rate, it is necessary to explain that: a circulation pipeline is also provided on the outside of the reactor 6, and the circulation pipeline can recycle the unreacted ozone in the sewage in the reactor 6. The circulation pipeline can make the circulation flow rate of the liquid in the reactor 6 0.1 to 20 times the flow rate of the water entering the reactor through the water and gas distribution device 4 at the bottom of the reactor 6. It can effectively improve the ozone utilization rate and solve the problem of low ozone utilization rate in ordinary ozone catalytic oxidation treatment devices;

[0046] The reactor 6 also includes a circulation pipeline, which can be formed by connecting a grid 8, a circulation outlet, a circulation pump 9, and a circulation inlet through a pipeline. The circulation pump 9 is connected to the circulation outlet and the circulation inlet through a pipeline, and the circulation inlet is provided with a grid 8;

[0047] The circulation pipeline enables ozone and sewage to form a circulating mixed liquid in the reactor 6. The flow of the circulating mixed liquid can continuously carry away the free radicals continuously generated on the surface of the solid catalyst 14 in the support member 13, making it easier for the surface of the solid catalyst 14 to continuously generate hydroxyl free radicals, which can further improve the catalytic oxidation treatment effect of the sewage.

[0048] In order to prevent the circulation pump 9 in the circulation pipeline from idling due to the circulation liquid inlet being blocked, so as to achieve a good overall circulation mixing effect in the circulation pipeline, it is necessary to further explain that: the circulation pipeline can be formed by connecting the circulation liquid outlet, the circulation liquid inlet, the circulation pump 9, and the grid 8 through pipelines, and the grid 8 is provided in the circulation liquid inlet. The grid 8 can prevent the support member 13 with the solid catalyst 14 from blocking the circulation liquid inlet, thereby preventing the circulation pump 9 from idling due to the circulation liquid inlet being blocked;

[0049] In order to achieve good circulation and filtration effects in the circulation pipeline, it needs to be further explained that the circulation pump 9 can be one or a combination of more than one of a vortex pump, a centrifugal pump, a vertical pump, and an axial flow pump.

[0050] In order to improve the catalytic oxidation treatment effect of the sewage in the reactor 6, it is necessary to explain that a coupling agent can be further provided within the region where the solid catalyst 14 support member 13 is provided inside the reactor 6. The coupling agent can improve the catalytic oxidation treatment effect of the sewage in the reactor 7.

[0051] The coupling agent can be one or a combination of hydrogen peroxide, transition metal ions, persulfate (PMS), and persulfate (PS); the dosage of hydrogen peroxide is 0-0.5%, the dosage of the transition metal ions is 0-0.2%, the dosage of persulfate (PMS) is 0-0.2%, and the dosage of persulfate (PS) is 0-0.2%.

[0052] During use of the device of the present invention: the ozone generated by the ozone generator 1 is connected to the water and gas distribution device 4 at the bottom of the reactor 6 in the catalytic oxidation reaction unit. By adjusting the ozone generator 1, the ratio of the amount of ozone added to the COD mass concentration of the sewage added to the reactor 6 through the sewage regulating tank 2 in the catalytic oxidation reaction unit is set in the range of 1 to 4;

[0053] The sewage is lifted from the regulating tank 2 by the water pump 3 to the bottom of the reactor 6. At this time, the water and air distribution device 4 at the bottom of the reactor 6 can evenly distribute the ozone and sewage through the water and air distribution device 4 and mix them before flowing into the reactor 6.

[0054] The solid catalyst 14 is loaded in the packing area 5 inside the reactor 6. The solid catalyst 14 is loaded by the support 13. When the sewage flow is too large or the water body that meets the standards after catalytic oxidation in the reactor 6 is completed, it is discharged from the tail water discharge pipe 7 connected to the drain port on the reactor 6.

[0055] At the same time, the sewage in the upper part of the reactor 6 can pass through the circulating liquid inlet grille 8, the circulating pump 9, the circulating liquid outlet at the lower part of the reactor 6, and then enter the reactor 6, so that the sewage circulation is realized, and the ozone and sewage form a circulating mixed liquid in the reactor 6. The flow of the circulating mixed liquid continuously carries away the free radicals continuously generated on the surface of the solid catalyst 14 in the support member 13, making it easier for the surface of the solid catalyst 14 to continuously generate hydroxyl free radicals, which can further improve the catalytic oxidation treatment effect of the sewage.

[0056] The unreacted ozone in the reactor 6 is processed by the demister 10 and the tail gas destruction device 11, and then discharged into the air through the fan 12 at the rear end of the tail gas destruction device 11;

[0057] At the same time, the sewage in the regulating tank 2 is lifted by the water pump 3 and flows into the reactor 6. The ozone generated by the ozone generator 1 in the reactor 6 and the solid catalyst 14 in the support member 13 can decompose the organic pollutants in the sewage. The concentration and flow of the ozone are adjusted by the ozone generator 1. When the ozone reaches the reactor 6, it can oxidize the organic pollutants in the sewage. At the same time, the hydroxyl radicals generated by the solid catalyst 13 in the support member 12 in the packing area 5 of the reactor 6 can also oxidize the organic pollutants in the sewage, thereby achieving deep degradation of the organic pollutants contained in the sewage in the reactor 6.

[0058] At this time, the supporting member 13 of the packing area 5 in the reactor 6 can be a hollow porous sphere, and the supporting member 13 of the hollow porous sphere is filled with a solid catalyst 14. There are gaps between different hollow porous sphere supporting members 13. This solves the problem that when ozone catalytic oxidation is in use, the solid catalyst 14 in the ozone catalytic oxidation tower or the ozone catalytic oxidation bed is easily compacted or abraded, and has a short service life, so that the effective ingredients on the solid catalyst 14 are easily lost or not fully utilized, resulting in low ozone utilization rate and low pollutant removal rate. At the same time, it can extend the service life of the solid catalyst 14, so that the sewage treatment effect in the reactor 6 can remain efficient and stable for a long time.

[0059] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An ozone catalytic oxidation sewage treatment device, comprising a catalytic oxidation reaction unit and an ozone generating unit connected to the front of the catalytic oxidation reaction unit, the catalytic oxidation reaction unit having a reactor, the ozone generating unit being able to regulate and deliver ozone into the reactor in the catalytic oxidation reaction unit, the rear of the catalytic oxidation reaction unit being connected to a tail gas destruction unit, the sewage being lifted into the reactor by a water pump of the catalytic oxidation reaction unit, and being discharged from a drain outlet at the upper portion of the reactor after catalytic oxidation in the reactor, characterized in that: Also includes: The reactor has a packing area inside, a support member is provided in the packing area, the support member is a porous hollow structure, the total area of ​​the holes on a single support member is 20% to 60% of the total surface area of ​​the single support member, a solid catalyst is provided in the support member, the pore diameter of the holes on the support member is not larger than the particle diameter of the solid catalyst, and the volume of a single support body is 5 to 50 times that of a single solid catalyst; The sewage stays in the reactor for no more than 30 minutes; The outside of the reactor is connected with a circulation pipeline, and the circulation flow rate can be adjusted to 0.1 to 20 times the water inlet flow rate through a circulation pump on the circulation pipeline.

2. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: The top side wall of the reactor is provided with a drain outlet, which is connected to the tail water discharge pipeline.

3. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: The ozone generating unit comprises an ozone generator and is provided with an ozone concentration detector; The ozone generator can adjust the mass concentration of ozone added into the reactor to be 1 to 4 times the mass concentration of COD in the influent sewage.

4. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: The catalytic oxidation reaction unit includes a regulating tank, a water pump, a reactor, and a water and gas distribution device. One end of the water pump is connected to the regulating tank, and the other end is connected to the water and gas distribution device inside the bottom of the reactor; The water and gas distribution device is also connected to the ozone generator outlet in the ozone generating unit through a pipeline.

5. The ozone catalytic oxidation sewage treatment device according to claim 4, characterized in that: The water and air distribution device includes an air distribution device and a water distribution device, which are connected to each other as a whole. The air distribution device is a combination of one or more of an aeration disk, a tubular aerator, a jet aerator, and a gas-liquid mixing device. The water distribution device is a combination of one or more of a perforated pipe, a nozzle, a filter head, and a rotating water distribution head.

6. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: The reactor further includes a circulation pipeline, which is formed by connecting a grid, a circulation outlet, a circulation pump, and a circulation inlet through pipelines. The circulation pump is connected to the circulation outlet and the circulation inlet through pipelines, and a grid is provided inside the circulation inlet. The reactor further comprises a supporting member, which is made of an oxidation-corrosion-resistant material, wherein the oxidation-corrosion-resistant material is a glass material or a high molecular polymer material.

7. The ozone catalytic oxidation sewage treatment device according to claim 6, characterized in that: The circulating pump is a combination of one or more of a vortex pump, a centrifugal pump, a vertical pump, and an axial flow pump.

8. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: A coupling agent is provided in the reactor within the region where the solid catalyst support is provided. The coupling agent is a combination of one or more of hydrogen peroxide, transition metal ions, persulfate (PMS), and peroxydisulfate (PDS); The dosage of the hydrogen peroxide is 0-0.5%, the dosage of the transition metal ion is 0-0.2%, the dosage of the hydrogen persulfate (PMS) is 0-0.2%, and the dosage of the peroxydisulfate (PDS) is 0-0.2%.

9. The ozone catalytic oxidation sewage treatment device according to claim 1, characterized in that: The tail gas destruction unit comprises a demister and a tail gas destruction device. The front end of the demister is connected to the rear of the reactor in the catalytic oxidation reaction unit, the rear end of the demister is connected to the tail gas destruction device, and the rear end of the tail gas destruction device is provided with a fan.

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