A multi-element synergistic catalytic oxidation device for high-salt wastewater treatment

Abstract

The application relates to the technical field of industrial wastewater treatment, in particular to a multi-element synergistic catalytic oxidation device for high-salt wastewater treatment, which comprises a reactor body and an aeration module arranged in the reactor body, the aeration module comprises a main air pipe, a branch air pipe and a shell, the shell is in a bowl shape with a closed lower end, the branch air pipe is coaxially arranged at the lower end of the shell, one end of the branch air pipe extends into the shell, and the other end extends to the lower side of the shell, the main air pipe and the branch air pipe are fixedly connected through a pipe clamp, and an aeration disc and an air bag are coaxially arranged in the shell; the air bag can be elastically deformed, the opening and closing degree of the deformation hole is adjusted by using the pressure change of the pressure cavity in the air bag, and then the size and distribution of the air bubbles are controlled, the problem that the air bubbles of the existing aeration device are uneven and the size cannot adapt to the concentration change of the salt solution is effectively solved, and therefore the overall reaction rate of the multi-element synergistic catalytic oxidation device is improved.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater treatment technology, specifically to a multi-component synergistic catalytic oxidation device for treating high-salinity wastewater. Background Technology

[0002] Multi-component synergistic catalytic oxidation technology overcomes the limitations of single solid waste salt catalytic oxidation treatment technology by coupling multiple technologies such as electrochemistry, photochemistry, and ozone oxidation, and produces a significant synergistic effect. However, in the actual promotion and application of existing multi-component synergistic catalytic oxidation devices, there are still several key technical bottlenecks, especially the two major problems of low gas-liquid mass transfer efficiency and insufficient system adaptability, which seriously restrict their treatment efficiency and operating economy.

[0003] One limiting factor is the low ozone utilization rate. As a key substance for generating free radicals in this technology, ozone's low solubility in water, slow mass transfer rate, and uneven distribution are the main reasons for the low oxidant utilization rate. Existing devices mostly use conventional aerators and perforated pipes for ozone addition, resulting in large-diameter, unevenly distributed bubbles and a small gas-liquid contact area. This causes a large amount of ozone to escape before participating in the reaction, leading to energy waste and exhaust gas treatment problems. The inefficient mass transfer process cannot provide sufficient and uniform ozone for the multi-component catalytic reaction, thus reducing the overall system reaction rate.

[0004] Furthermore, the salinity, organic matter concentration, viscosity, and other water quality characteristics of high-salinity wastewater fluctuate significantly. The gas-liquid distribution system of existing devices is usually fixed. When the salinity of the wastewater changes, the density, viscosity, and surface tension of the salt solution also change, significantly affecting the bubble size, rising speed, and residence time. The fixed gas distribution system cannot be optimized and adjusted accordingly, resulting in the inability to maintain the optimal gas-liquid mixing state under different water quality conditions. This leads to unstable treatment effects, the need for frequent manual adjustment of operating parameters, a high dependence on operator experience, and difficulty in achieving stable, intelligent, and industrialized operation.

[0005] Therefore, there is an urgent need for a new type of gas-liquid distribution system that can fundamentally solve the ozone mass transfer efficiency problem and intelligently adapt to the fluctuating characteristics of high-salinity wastewater, thereby truly unleashing the potential of multi-element synergistic catalytic oxidation technology and promoting its high-efficiency and industrial application. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-element synergistic catalytic oxidation device for treating high-salinity wastewater, in order to solve the problem that in existing multi-element synergistic catalytic oxidation devices, the bubbles generated by the aeration disc are uneven during aeration, and the size of the bubbles cannot be adjusted according to the concentration of the salt solution, resulting in a decrease in the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-element synergistic catalytic oxidation device for treating high-salinity wastewater includes a reactor body and an aeration module disposed within the reactor body. Specifically, the aeration module includes a main air pipe, branch air pipes, and a shell. The shell is bowl-shaped with a closed lower end. The branch air pipes are coaxially disposed at the lower end of the shell, with one end extending into the shell and the other end extending to the lower side of the shell. The main air pipe and the branch air pipes are fixedly connected by pipe clamps. An aeration disc and an air bladder are coaxially disposed within the shell. The air bladder contains a pressure chamber, and a sliding sleeve is coaxially disposed on the lower end face of the air bladder. The pressure chamber is coaxially slidably connected to the outer wall of the bronchus. The pressure chamber is connected to the main bronchus through the bronchus. The top and side walls of the air bladder are provided with multiple deformation holes. The air bladder is made of elastic material, and the deformation holes are closed when there is no pressure in the pressure chamber. Multiple through holes are evenly distributed on the aeration disc. The aeration disc includes an arc-shaped part and a cylindrical part. The cylindrical part is located below the arc-shaped part and the two are connected. The arc-shaped part protrudes upward. The cylindrical part is slidably connected to the shell. An elastic element is provided between the cylindrical part and the shell. When there is no pressure in the pressure chamber, the elastic element is in a relaxed state.

[0009] During aeration, the main air pipe delivers compressed high-pressure ozone to the bronchial pipes, which then fill the pressure chamber of the airbag. As the pressure in the pressure chamber gradually increases, the airbag undergoes elastic deformation, and the deformation holes on the top and side walls of the airbag expand accordingly. The ozone in the pressure chamber is discharged from the airbag through the deformation holes. At this time, the ozone overflows through the deformation holes in the form of tiny bubbles. Because the deformation holes are evenly distributed and their size can change with the pressure, the generated bubbles are small and uniform, thereby ensuring the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0010] Furthermore, as the pressure in the pressure chamber increases, the airbag undergoes elastic deformation, pushing it downwards. The sliding sleeve slides along the outer wall of the bronchus, and the top of the airbag presses upwards against the aeration disc. After being compressed, the cylindrical surface of the aeration disc slides upwards along the shell, and the elastic element is compressed. When the salinity of the wastewater increases, the density, viscosity, and surface tension of the salt solution change, affecting the generation and movement of bubbles, and increasing the required amount of ozone. By adjusting the ozone pressure in the main air pipe, the pressure in the airbag pressure chamber can be increased, thereby increasing the opening and closing degree of the deformation orifice and the upward movement distance of the aeration disc. This allows the bubble size and distribution to adapt to wastewater with different salinities, maintaining the optimal gas-liquid mixing state and improving the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0011] Preferably, the airbag includes an elastic layer and a deformation layer, the deformation holes are formed on the elastic layer, the deformation layer is disposed between the elastic layer and the aeration disc, and the deformation layer is made of open-cell hydrophobic silicone rubber foam.

[0012] By incorporating a deformation layer, the layer can better assist the elastic layer in deforming when the airbag undergoes elastic deformation, resulting in smoother and more stable opening and closing of the deformation holes. Simultaneously, since the deformation layer is located between the elastic layer and the aeration disc, it also provides a buffering effect, reducing direct friction and impact between the airbag and the aeration disc, thus extending the device's service life.

[0013] Furthermore, when the salinity of the wastewater increases, the viscosity and surface tension of the salt solution change. The airbag undergoes elastic deformation and pushes the aeration disc. Since the deformation layer is located between the elastic layer and the aeration disc, the deformation layer is compressed, and the porous structure within the deformation layer is compressed. The pore size of the porous structure in the deformation layer decreases, thereby refining the size of the bubbles, increasing the surface area of ​​the bubbles, and improving the contact area between ozone and the salt solution, thus increasing the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0014] Furthermore, the deformation layer made of open-cell hydrophobic silicone rubber foam not only has good elasticity, but also effectively prevents water penetration, avoiding the problem of salt solutions seeping into the pressure chamber through the deformation layer and elastic layer, ensuring the stability of ozone pressure in the pressure chamber, thereby improving the uniformity and stability of bubble generation.

[0015] Preferably, a skeleton layer is provided between the elastic layer and the deformation layer. The skeleton layer is made of elastic metal material and includes multiple main skeletons and multiple auxiliary skeletons. The multiple main skeletons are evenly distributed around the axis of the elastic layer and are connected at one end near the middle of the elastic layer. The multiple auxiliary skeletons are all ring-shaped and are equidistant from the inside to the outside. The main skeletons and auxiliary skeletons are all connected.

[0016] The skeleton layer enhances the overall structural strength and stability of the airbag. When the airbag undergoes elastic deformation, the skeleton layer can effectively disperse stress and prevent damage to the deformation layer or elastic layer caused by local stress concentration. At the same time, the main and auxiliary skeletons made of elastic metal not only provide sufficient support, but also undergo elastic bending with the deformation of the airbag, ensuring that the skeleton layer and the airbag deform synchronously. This maintains the opening and closing accuracy of the deformation holes and the stability of bubble generation, thereby improving the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0017] Furthermore, the mesh structure formed by the multiple main and auxiliary skeletons of the skeleton layer can also limit the excessive compression of the deformation layer to a certain extent, prevent the deformation layer structure from being damaged due to rapid changes in wastewater salinity, and further extend the service life of the device.

[0018] Preferably, the inner and outer walls of the deformation layer are provided with a beam surface layer, which completely covers the deformation layer, and the beam surface layer is made of ePTFE porous membrane material.

[0019] By setting bundled surface layers on both the inner and outer sides of the deformation layer, the bundled surface layers can effectively constrain the deformation range of the deformation layer, preventing excessive expansion or contraction during repeated compression and recovery, thereby maintaining the structural stability and performance of the deformation layer. The ePTFE porous membrane material has excellent chemical stability and hydrophobicity, which can further prevent salt solutions from penetrating into the interior of the deformation layer, protecting the porous structure of the deformation layer from salt erosion, ensuring the uniformity and continuity of bubble generation. The microporous structure of the bundled surface layers can also play a certain filtering role, reducing impurities entering the deformation layer and improving the overall operational reliability of the device.

[0020] Preferably, the deformation hole includes a tapered section and a straight hole section, the tapered section and the straight hole section are coaxially arranged and connected, the large end of the tapered section penetrates the inner wall of the elastic layer, and the straight hole section penetrates the outer wall of the elastic layer.

[0021] When the pressure inside the pressure chamber increases and the gasbag deforms, the conical section guides ozone gas more smoothly into the deformation pores, while the straight pore section ensures that the gas is discharged in the form of uniform microbubbles, enhancing the stability and uniformity of bubble generation. Furthermore, the conical section design can also prevent salt solution from flowing back into the deformation pores to a certain extent, protecting the cleanliness and stability of the gasbag's internal structure. The uniform arrangement of the straight pores also ensures the uniform distribution of bubbles on the aeration plate, further optimizing the gas-liquid mass transfer effect, improving the overall reaction rate, and thus enhancing the operating efficiency and reliability of the multi-element synergistic catalytic oxidation device.

[0022] Preferably, the upper side of the housing is threaded with a sleeve, and the outer side wall of the cylindrical part is provided with a collar. The upper end face of the collar is provided with a first limiting groove, and the lower end face of the sleeve is provided with a second limiting groove. The upper and lower ends of the elastic element are respectively embedded in the second limiting groove and the first limiting groove. The rotation section of the elastic element is arc-shaped, and when there is no pressure in the pressure chamber, the side wall of the elastic element protrudes towards the inner wall of the housing.

[0023] By setting the first and second limiting grooves, the movement range of the elastic element can be precisely limited, ensuring that the elastic element maintains a stable movement trajectory during compression and relaxation, thus improving the stability of the structure. It also enables the elastic element to respond more effectively to the pressure changes of the air bladder, thereby more accurately controlling the movement distance of the aeration disc.

[0024] Furthermore, the elastic element with an arc-shaped rotating cross section can better disperse stress when under pressure, reduce local stress concentration, and further improve the durability and reliability of the device. When there is no pressure in the pressure chamber, the side wall of the elastic element protrudes into the inner wall of the shell. This design can also prevent impurities in the wastewater from entering the gap between the elastic element and the shell to a certain extent, ensuring the long-term stable operation of the device.

[0025] Preferably, the elastic element is provided with limiting rings at both the upper and lower ends, and the limiting rings at the upper and lower ends are slidably connected in the second limiting groove and the first limiting groove, respectively.

[0026] By setting the limiting ring, the stability of the elastic element during movement can be further ensured, preventing it from shifting or falling off under high pressure or frequent movement, thus ensuring the reliable operation of the entire aeration module. Furthermore, the sliding connection design between the limiting ring and the limiting groove makes the elastic element move more smoothly during compression and reset, reducing energy loss caused by friction and improving the overall efficiency of the device. In addition, the setting of the limiting ring also facilitates the maintenance and replacement of the elastic element, reducing the operation and maintenance cost of the device.

[0027] Preferably, the inner wall of the sleeve is provided with a sealing ring, the rotational section of the sealing ring is Y-shaped, and the lip of the sealing ring faces downward, and the lip of the sealing ring is slidably connected to the outer wall of the cylindrical part.

[0028] The sealing ring design with a "Y"-shaped rotating section allows its lip to fit tightly against the outer wall of the cylindrical part, forming an effective sealing barrier to prevent impurities and gases in the wastewater from entering the device through the gap between the sleeve and the cylindrical part, thus ensuring the cleanliness and stable operation of the device.

[0029] Furthermore, the downward-facing lip design allows the sealing ring to better perform its sealing function under pressure, and the lip of the sealing ring can slide smoothly when the cylinder moves up and down without wear or leakage due to friction, further improving the sealing performance and durability of the device. In addition, this sealing ring structure also has a certain self-compensation capability. When the sealing surface experiences minor wear, the sealing ring can automatically adjust its fit under pressure to maintain a long-term sealing effect.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. This invention uses an elastically deformable airbag to adjust the opening and closing of the deformation holes by utilizing the pressure changes in the pressure chamber inside the airbag, thereby controlling the size and distribution of bubbles. This effectively solves the problems of uneven bubbles and inability of bubble size to adapt to changes in salt solution concentration in existing aeration devices, thus improving the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0032] 2. This invention sets a deformation layer between the aeration disc and the elastic layer. The air bladder undergoes elastic deformation and pushes the aeration disc. The porous structure in the deformation layer is compressed, and the pore size of the porous structure in the deformation layer is reduced, thereby refining the size of the bubbles, increasing the surface area of ​​the bubbles, and improving the contact area between ozone and the salt solution, thereby improving the overall reaction rate of the multi-element synergistic catalytic oxidation device.

[0033] 3. By adding a skeleton layer between the elastic layer and the deformation layer, the present invention utilizes a mesh structure composed of a main skeleton and an auxiliary skeleton made of elastic metal material to effectively enhance the overall structural strength and stability of the airbag, prevent damage to the deformation layer or elastic layer caused by local stress concentration, and ensure synchronous deformation of the skeleton layer and the airbag, maintain the opening and closing accuracy of the deformation holes and the stability of bubble generation, and further improve the overall reaction rate and durability of the multi-element synergistic catalytic oxidation device. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to the present invention;

[0035] Figure 2 This is a schematic diagram of the aeration module in the multi-component synergistic catalytic oxidation device for treating high-salinity wastewater of the present invention;

[0036] Figure 3 for Figure 2 Full sectional view at point AA;

[0037] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0038] Figure 5 This is a state diagram of the aeration module in the multi-element synergistic catalytic oxidation device for treating high-salinity wastewater of the present invention during aeration oxidation.

[0039] Figure 6 for Figure 5 A magnified view of a section at point C;

[0040] Figure 7 for Figure 6 A magnified view of a section from point D;

[0041] Figure 8This is a schematic diagram of the structure of the gasbag in the multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to the present invention.

[0042] In the diagram: 1. Reactor body; 2. Inlet; 3. Outlet; 4. Air inlet; 5. Air outlet; 6. Catalytic module; 7. Ultrasonic anti-clogging module; 8. Aeration module; 9. Circulation module; 10. Main air pipe; 11. Branch air pipe; 12. Shell; 121. Arc-shaped groove; 13. Pipe clamp; 14. Aeration disc; 141. Through hole; 142. Arc-shaped surface; 143. Cylindrical surface; 15. Air bladder; 151 152. Pressure chamber; 153. Deformation hole; 154. Conical section; 155. Straight hole section; 156. Elastic layer; 157. Deformation layer; 158. Skeleton layer; 159. Main skeleton; 150. Auxiliary skeleton; 151. Bundle surface layer; 16. Sliding sleeve; 17. Sleeve; 18. No. 2 limiting groove; 19. Collar; 181. No. 1 limiting groove; 20. Elastic element; 21. Restricting ring; 22. Sealing ring. Detailed Implementation

[0043] Please see Figures 1 to 8 This invention provides a multi-element synergistic catalytic oxidation device for treating high-salinity wastewater, the technical solution of which is as follows:

[0044] Please refer to the following: A multi-component synergistic catalytic oxidation device for treating high-salinity wastewater. Figure 1 The reactor includes a reactor body 1, which contains a catalytic module 6, an ultrasonic anti-clogging module 7, and an aeration module 8 arranged from top to bottom. The reactor body 1 has an inlet 2 and an outlet 3 at its upper and lower ends, respectively. An air inlet 4 is provided on the side wall of the reactor body 1, which is connected to the aeration module 8. An air outlet 5 is provided at the upper end of the reactor body 1. A circulation module 9 is provided on the side wall of the reactor body 1. The circulation inlet of the circulation module 9 is located below the aeration module 8, and the circulation outlet of the circulation module 9 is located between the aeration module 8 and the catalytic module 6.

[0045] For details, please refer to Figure 2 and Figure 3The aeration module 8 includes a main air pipe 10, branch pipes 11, and a housing 12. The housing 12 is bowl-shaped with a closed lower end. The branch pipes 11 are coaxially arranged at the lower end of the housing 12, with one end extending into the housing 12 and the other end extending to the lower side of the housing 12. The main air pipe 10 and the branch pipes 11 are fixedly connected by a pipe clamp 13. An aeration disc 14 and an air bladder 15 are coaxially arranged inside the housing 12. The air bladder 15 has a pressure chamber 151. A sliding sleeve 16 is coaxially arranged on the lower end face of the air bladder 15. The sliding sleeve 16 is coaxially slidably connected to the outer wall of the branch pipe 11. The pressure chamber 151 is connected to the main air pipe 10 by a pipe clamp 13. The bronchus 11 is connected, and the top and side walls of the air bladder 15 are provided with multiple deformation holes 152. The air bladder 15 is made of elastic material, and the deformation holes 152 are closed when there is no pressure in the pressure chamber 151. Multiple through holes 141 are evenly distributed on the aeration disc 14. The aeration disc 14 includes an arc-shaped part 142 and a cylindrical part 143. The cylindrical part 143 is located on the lower side of the arc-shaped part 142 and the two are connected. The arc-shaped part 142 protrudes upward. The cylindrical part 143 is slidably connected to the shell 12. An elastic element 19 is provided between the cylindrical part 143 and the shell 12. When there is no pressure in the pressure chamber 151, the elastic element 19 is in a relaxed state.

[0046] Please see Figure 3 and Figure 8 The airbag 15 includes an elastic layer 153 and a deformation layer 154. Deformation holes 152 are formed on the elastic layer 153. The deformation holes 152 include a conical section 152a and a straight section 152b. The conical section 152a and the straight section 152b are coaxially arranged and connected. The large end of the conical section 152a penetrates the inner wall of the elastic layer 153, and the straight section 152b penetrates the outer wall of the elastic layer 153. The deformation layer 154 is disposed between the elastic layer 153 and the aeration disc 14. The deformation layer 154 is made of open-cell hydrophobic silicone rubber foam. A skeleton layer 155 is provided between the elastic layer 153 and the deformation layer 154. The skeleton layer 155 is made of elastic metal material and includes multiple main skeletons 155a and multiple auxiliary skeletons 155b. The multiple main skeletons 155a are evenly distributed around the axis of the elastic layer 153, and the ends of the multiple main skeletons 155a near the middle of the elastic layer 153 are connected. The multiple auxiliary skeletons 155b are all annular and are equidistant from the inside to the outside. The main skeletons 155a and auxiliary skeletons 155b are all connected. A bundle surface layer 156 is provided on the inner and outer walls of the deformation layer 154. The bundle surface layer 156 completely covers the deformation layer 154 and is made of ePTFE porous membrane material.

[0047] Please see Figures 2 to 4The upper side of the housing 12 is threaded with a sleeve 17. A collar 18 is provided on the outer wall of the cylindrical part 143. A first limiting groove 181 is provided on the upper end face of the collar 18, and a second limiting groove 171 is provided on the lower end face of the sleeve 17. The upper and lower ends of the elastic element 19 are respectively embedded in the second limiting groove 171 and the first limiting groove 181. The rotation section of the elastic element 19 is arc-shaped, and when there is no pressure in the pressure chamber 151, the side wall of the elastic element 19 protrudes towards the inner wall of the housing 12. An arc-shaped groove 121 is provided on the inner side wall of the housing 12. The arc-shaped groove 121 is used to provide clearance space for the elastic element 19 after elastic deformation. The elastic element 19 is provided with limiting rings 20 at both the upper and lower ends. The limiting rings 20 at the upper and lower ends are slidably connected in the second limiting groove 171 and the first limiting groove 181, respectively. The inner side wall of the sleeve 17 is provided with a sealing ring 21. The rotation section of the sealing ring 21 is Y-shaped, and the lip of the sealing ring 21 faces downward. The lip of the sealing ring 21 is slidably connected to the outer side wall of the cylindrical part 143.

[0048] Working principle: Please refer to Figures 1 to 8This multi-element synergistic catalytic oxidation device is used to treat solutions with a salinity of 1% to near saturation. When high-salinity wastewater enters the reactor body 1 through the inlet 2, high-pressure ozone gas is introduced through the air inlet 4. The high-pressure ozone gas enters the pressure chamber 151 of the gas bag 15 through the main air pipe 10 and the branch air pipe 11. As the pressure in the pressure chamber 151 gradually increases, the gas bag 15 begins to undergo elastic deformation. Since the gas bag 15 is made of elastic material and the deformation hole 152 is initially closed, under the action of pressure, the conical section 152a of the deformation hole 152 guides the ozone gas to enter more smoothly, and the straight hole section 152b ensures that the gas is discharged in the form of uniform microbubbles. The deformation of the gas bag 15 pushes the aeration disc 14, which compresses the porous structure in the deformation layer 154, reduces the pore size, refines the bubble size, and increases the surface area of ​​the bubbles, thereby increasing the contact area between ozone and the saline solution. Meanwhile, the skeleton layer 155 between the elastic layer 153 and the deformation layer 154, with its mesh structure composed of a main skeleton 155a and an auxiliary skeleton 155b made of elastic metal material, effectively disperses stress, preventing local stress concentration from causing damage to the deformation layer 154 or the elastic layer 153. It can also bend elastically with the deformation of the airbag 15, ensuring that the skeleton layer 155 deforms synchronously with the airbag 15, maintaining the opening and closing accuracy of the deformation hole 152 and the stability of bubble generation. The bundle surface layer 156 on the inner and outer walls of the deformation layer 154 is made of ePTFE porous membrane material, which effectively constrains the deformation range of the deformation layer 154, preventing it from over-expanding or contracting during repeated compression and recovery. It can also prevent salt solutions from penetrating into the interior of the deformation layer 154, protecting the porous structure from salt corrosion. Its microporous structure can also filter impurities, reducing the amount of impurities entering the deformation layer 154. The sleeve 17 threaded on the upper side of the housing 12 and the collar 18 on the outer wall of the cylindrical part 143 precisely limit the movement range of the elastic element 19 through the first limiting groove 181 and the second limiting groove 171. The limiting rings 20 at the upper and lower ends of the elastic element 19 further ensure its movement stability. The elastic element 19 with an arc-shaped rotary section disperses stress and reduces local stress concentration when under pressure. When there is no pressure in the pressure chamber 151, the side wall of the elastic element 19 protrudes towards the inner wall of the housing 12 to prevent wastewater impurities from entering the gap. The sealing ring 21 with a "Y"-shaped rotary section has its lip tightly fitted to the outer wall of the cylindrical part 143 with the lip facing downwards. It can better perform the sealing function when under pressure. When the cylindrical part 143 moves up and down, the lip slides smoothly, reducing wear or leakage, and has a certain self-compensation ability. After being treated by aeration module 8, the wastewater is circulated by circulation module 9 to the space between aeration module 8 and catalytic module 6. The saline wastewater forms an internal circulation within reactor body 1 through circulation module 9 for further purification. During the process, ultrasonic anti-clogging module 7 works to prevent scaling in catalytic module 6 and circulation module 9. The saline solution after the catalytic oxidation reaction is completed is finally discharged from outlet 3, while the gas generated during the treatment process passes upward through catalytic module 6 and is finally discharged from gas outlet 5.

[0049] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A multi-element synergistic catalytic oxidation device for treating high-salinity wastewater, comprising a reactor body and an aeration module disposed within the reactor body, characterized in that, The aeration module includes a main air pipe, branch air pipes, and a shell. The shell is bowl-shaped and closed at the bottom. The branch air pipes are coaxially arranged at the lower end of the shell, with one end extending into the shell and the other end extending to the lower side of the shell. The main air pipe and the branch air pipes are fixedly connected by pipe clamps. An aeration disc and an air bladder are coaxially arranged inside the shell. The air bladder has a pressure chamber, and a sliding sleeve is coaxially arranged on the lower end face of the air bladder. The sliding sleeve is slidably connected to the outer wall of the branch air pipe. The pressure chamber is connected to the main air pipe. The air bladder is connected to the bronchus. Multiple deformation holes are provided on the top and side walls of the air bladder. The air bladder is made of elastic material, and the deformation holes are closed when there is no pressure in the pressure chamber. Multiple through holes are evenly distributed on the aeration disc. The aeration disc includes an arc-shaped surface and a cylindrical surface. The cylindrical surface is located below the arc-shaped surface and the two are connected. The arc-shaped surface protrudes upwards. The cylindrical surface is slidably connected to the shell. An elastic element is provided between the cylindrical surface and the shell. When there is no pressure in the pressure chamber, the elastic element is in a relaxed state. The airbag includes an elastic layer and a deformation layer. The deformation holes are formed on the elastic layer. The deformation layer is disposed between the elastic layer and the aeration disc. The deformation layer is made of open-cell hydrophobic silicone rubber foam. The inner and outer walls of the deformation layer are provided with a beam surface layer, which completely covers the deformation layer. The beam surface layer is made of ePTFE porous membrane material. A skeleton layer is provided between the elastic layer and the deformation layer. The skeleton layer is made of elastic metal material and includes multiple main skeletons and multiple auxiliary skeletons. The multiple main skeletons are evenly distributed around the axis of the elastic layer and are connected at one end near the middle of the elastic layer. The multiple auxiliary skeletons are all in a ring shape and are equidistant from the inside to the outside. The main skeletons and auxiliary skeletons are all connected.

2. The multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to claim 1, characterized in that, The deformation hole includes a tapered section and a straight hole section. The tapered section and the straight hole section are coaxially arranged and connected. The large end of the tapered section penetrates the inner wall of the elastic layer, and the straight hole section penetrates the outer wall of the elastic layer.

3. The multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to claim 1, characterized in that, The upper side of the housing is threaded with a sleeve, and a collar is provided on the outer side wall of the cylindrical part. A first limiting groove is provided on the upper end face of the collar, and a second limiting groove is provided on the lower end face of the sleeve. The upper and lower ends of the elastic element are respectively embedded in the second limiting groove and the first limiting groove. The rotation section of the elastic element is arc-shaped, and when there is no pressure in the pressure chamber, the side wall of the elastic element protrudes towards the inner wall of the housing.

4. The multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to claim 3, characterized in that, The elastic element is provided with limiting rings at both the upper and lower ends, and the limiting rings at the upper and lower ends are slidably connected in the second limiting groove and the first limiting groove, respectively.

5. A multi-element synergistic catalytic oxidation device for treating high-salinity wastewater according to claim 3, characterized in that, The inner wall of the sleeve is provided with a sealing ring. The rotating section of the sealing ring is "Y" shaped, and the lip of the sealing ring faces downward. The lip of the sealing ring is slidably connected to the outer wall of the cylindrical part.

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