Ozone projection reactor water purification system and water treatment method thereof

Abstract

The application discloses an ozone projection reactor water purification system and a water treatment method thereof, and belongs to the technical field of sewage treatment. The ozone projection reactor water purification system comprises a reaction chamber, a bubble generator and an aeration disc. A partition plate is arranged in the reaction chamber, and the reaction chamber is divided into a reaction area and an overflow area. The reaction area is communicated with the top of the overflow area, and a circulating loop is arranged at the bottom of the reaction area. The bubble generator is arranged on the circulating loop. The bubble generator comprises a bubble generating cavity. The pipe diameter of the bubble generating cavity is first reduced and then increased along the axial direction. A stirring impeller is arranged in the bubble generating cavity. The aeration disc is arranged at the bottom of the reaction chamber, and the reaction area and the overflow area are supplemented with gas. The implementation method of the scheme is very simple, and the reaction effect of wastewater and ozone can be further improved, and the purification effect of wastewater is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, more particularly, it relates to an ozone projection reactor water purification system and a water treatment method thereof. BACKGROUND

[0002] Ozone, as a strong oxidizing agent, can oxidize a variety of organic and inorganic substances, remove COD and TOC that are not easily removed by other methods, and significantly reduce water color, so it is widely used in wastewater advanced treatment. The main method for treating wastewater by ozone at present is ozone solid catalyst process. By loading solid catalyst in the reactor, wastewater passes through the catalyst from bottom to top, and a gas-liquid-solid three-phase environment is formed on the surface of the catalyst for reaction. The disadvantage is that the reaction area of the loaded solid catalyst is limited, and the phenomenon of hardening and loss is easy to occur. Gas resistance is easy to form in the reactor, and water distribution and gas distribution are uneven. The ozone bubbles entering the water body are large, and the reaction efficiency and utilization rate are low.

[0003] For example: Chinese patent No. CN114890598B, published on April 7, 2023, the invention name is an environment-friendly ozone catalytic oxidation sewage treatment equipment and its treatment method, which comprises a high-temperature boiler and a treatment tank, the high-temperature boiler is respectively fixedly connected with a wastewater inlet pipe and an exhaust pipe, the high-temperature boiler and the treatment tank are fixedly connected with a first drain pipe, the treatment tank is respectively fixedly connected with an exhaust pipe and a second drain pipe; the scheme pre-treats the wastewater by high-temperature sterilization through the high-temperature boiler, and then discharges it into the treatment tank for treatment. The steam generated by the high-temperature boiler drives the cam and the aeration pipe to rotate in the treatment tank when high-temperature treatment is performed, so that ozone is diffused in the treatment tank in large quantities, and the connecting frame moves up and down reciprocally to clean the water holes of the catalyst bed, so that ozone and the catalyst bed are in full contact and fusion, thereby improving the treatment effect and efficiency of the wastewater. However, the structure of this scheme is complex, and the catalyst bed needs to be cleaned after using the catalyst, and the treatment method is also more complex, and it is still easy to cause the problems of catalyst layer blockage and hardening failure. SUMMARY

[0004] The present application overcomes the problems of easy blockage and hardening failure in the purification system during the existing wastewater treatment process, and provides an ozone projection reactor water purification system. The device using the present scheme can avoid using solid catalysts while ensuring water treatment effect, effectively avoiding the risk of blockage of the purification system and poor water treatment effect. And also provides an ozone projection reactor water treatment method. Using this method can further improve the purification effect of wastewater.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an ozone projection reactor water purification system, comprising a reaction chamber, a bubble generator, and an aeration disc. The reaction chamber is provided with a partition plate, dividing the reaction chamber into a reaction zone and an overflow zone. The top of the reaction zone is connected to the top of the overflow zone, and a circulation loop is provided at the bottom. The bubble generator is located on the circulation loop and includes a bubble generating chamber. The diameter of the bubble generating chamber decreases first and then increases along the axial direction. A stirring impeller is provided in the bubble generating chamber. The aeration disc is located at the bottom of the reaction chamber to replenish gas to the reaction zone and the overflow zone. The reaction zone and overflow zone of the reaction chamber are the main reaction sites for wastewater and ozone. Wastewater in the overflow zone can also be recycled back to the reaction zone through a circulation loop. The bubble generator mixes the introduced ozone and wastewater, and the impeller further mixes the bubbles and wastewater to form micro-nano-sized bubble water. After passing through the reducer in the bubble generation chamber, the bubble water first accelerates and then decelerates. Due to the instability of the flow, the bubble water aggregates and splits, further improving the mixing effect of ozone and wastewater, thereby improving the water treatment effect. The aeration disc can supplement ozone in the reaction chamber to ensure the ozone level. Due to the action of the aeration disc, turbulence is generated in the wastewater in the reaction chamber, further promoting the wastewater treatment effect. This solution avoids the use of a catalyst layer, thus eliminating the risk of clogging.

[0006] Preferably, the reaction chamber further includes a first inlet and a first outlet. The first inlet is located at the bottom of the reaction chamber and within the reaction zone, while the first outlet is located at the top of the reaction chamber and corresponds to the top of the partition plate. The first inlet supplies wastewater to the reaction zone of the reaction chamber, while the first outlet discharges the treated wastewater. The first outlet is positioned at the corresponding location on the top of the partition plate, allowing for simultaneous wastewater supply and discharge, thus improving water treatment efficiency.

[0007] Preferably, the bubble generator includes a second inlet and a second outlet. A drive pump is provided between the second outlet and the reaction chamber, and the drive pump is connected to the reaction zone. The second inlet is connected to the overflow zone, which can re-transport the wastewater in the overflow zone to the bubble generator for another bubble regeneration. The second outlet is connected to the reaction zone, and the drive pump enables the water in the overflow zone and the reaction zone to circulate.

[0008] Preferably, the bubble generator also includes an air inlet, which is located between the stirring impeller and the second water inlet. The air inlet of the bubble generator is used to introduce ozone. The ozone needs to be mixed with the wastewater before being stirred and cut by the stirring impeller. Therefore, the air inlet needs to be arranged between the second water inlet and the stirring impeller.

[0009] Preferably, the aeration disc includes a disc cover and a hemispherical disc base, with a diaphragm pressed between the circular openings of the disc cover and the disc base. The diaphragm has a plurality of aeration holes. The diaphragm on the aeration disc can evenly disperse the ozone in the disc base to the bottom of the reaction chamber and form microbubbles in the reaction chamber, thus replenishing a certain amount of ozone to the inside of the reaction chamber.

[0010] Preferably, the drive pump includes a pump body, within which a rotating impeller is disposed, and a right-angled water channel is provided between the water-facing surface of the rotating impeller and the pump body inlet. The drive pump causes wastewater to flow by rotating the impeller, and the right-angled water channel between the rotating impeller and the pump body inlet allows the aerated water entering the pump body to be disturbed and impacted, improving the mixing effect; furthermore, the rotating impeller can also further agitate and cut the aerated water.

[0011] Preferably, the system also includes a gas generator connected to the aeration disc and the bubble generator. The gas generator produces ozone, which is then simultaneously delivered to both the aeration disc and the bubble generator to mix with the wastewater.

[0012] Preferably, the gas generator includes an electrolysis component and a cooling component. The gas generator has a gas outlet, and the electrolysis component is connected to the gas outlet via a gas pipe. The gas pipe and the cooling component are integrated into one unit. The electrolysis component generates ozone through electrolysis, while the cooling component cools the generated ozone, ensuring its stability and preventing its decomposition and inactivation.

[0013] Preferably, the cooling assembly includes a cooling chamber, the gas generator has a third water inlet and a third water outlet, and the cooling chamber is connected to the third water inlet and the third water outlet via a water pipe. Circulating cooling water is introduced into the cooling chamber through the third water inlet and the third water outlet to achieve a continuous and stable water cooling effect.

[0014] An ozone projection reactor water treatment method, implemented using the aforementioned ozone projection reactor water purification system, includes the following steps: S1: Start the drive pump in the circulation loop to circulate the wastewater in the overflow zone; S2: The gas generator introduces ozone gas into the bubble generator and aeration disc, and the ozone gas forms micro-nano-sized bubble water through the stirring impeller, which is then introduced into the reaction zone; ozone gas is replenished to the overflow zone and reaction zone of the reaction chamber through the aeration disc; S3: Observe the color of the wastewater in the reaction chamber, and after the color meets the standard, open the first outlet of the reaction chamber for discharge.

[0015] Preferably, the gas flow rate from the aeration disc to the overflow zone is greater than the gas flow rate from the aeration disc to the reaction zone.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) under the premise of ensuring water treatment effect, the use of solid catalyst can be avoided, effectively avoiding the risk of blockage of the purification system and poor water treatment effect; (2) micro-nano projection aeration is used to generate micro-nano-level bubbles, so that ozone and sewage are almost in a homogeneous system, which greatly improves the reaction rate of ozone, and the micro-nano-level bubbles have a long residence time in water, so that ozone can fully react with pollutants and improve the utilization rate of ozone; (3) the reactor is divided into two areas by a partition and the sewage in the column is circulated up and down by a jet pump, which enhances the convection effect and makes the water and gas distribution in the column more uniform; (4) the implementation method is simple and can further improve the reaction effect of wastewater and ozone, and improve the purification effect of wastewater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the structural principle of the present invention.

[0018] Figure 2 This is a schematic diagram of the bubble generator of the present invention.

[0019] Figure 3 This is a schematic diagram of the aeration disc structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the drive pump of the present invention.

[0021] Figure 5 This is a schematic diagram of the gas generator of the present invention.

[0022] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0023] In the diagram: 1. Reaction chamber, 2. Partition plate, 3. Reaction zone, 4. Overflow zone, 5. Circulation loop, 6. Bubble generator, 7. Bubble generating chamber, 8. Agitator impeller, 9. Aeration disc, 10. First inlet, 11. First outlet, 12. Second inlet, 13. Second outlet, 14. Drive pump, 15. Disc cover, 16. Disc base, 17. Diaphragm, 18. Pump body, 20. Right-angled water channel, 21. Gas generator, 22. Electrolysis assembly, 23. Cooling assembly, 24. Outlet 26. Air inlet, 27. Third water inlet, 28. Third water outlet, 29. Circulating water inlet, 30. Circulating water outlet, 31. Air inlet, 32. Drive motor, 33. Pump cover, 34. Rotary impeller, 35. Pump body inlet, 36. Pump body outlet, 37. Rubber gasket, 38. Connecting flange, 39. Air inlet hole, 40. Diverter plate, 41. Drain pipe, 42. Exhaust pipe, 43. Observation mirror, 44. Fan, 45. Rotor flow meter, 46. Power switch, 47. Touch screen. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Example 1: As Figure 1 or Figure 6 The ozone projection reactor water purification system shown includes a reaction chamber 1, a circulation loop 5 located at the bottom of the reaction chamber 1, a drive pump 14 and a bubble generator 6 located on the circulation loop 5, and a gas generator 21 connected to both the bubble generator 6 and the aeration disc 9. The reaction chamber 1 is equipped with vertically distributed partition plates 2, which divide the reaction chamber 1 into two areas: a reaction zone 3 and an overflow zone 4. The reaction zone 3 and overflow zone 4 are the main mixing and reaction sites for wastewater and ozone. The circulation loop 5 connects to the bottom of the overflow zone 4 and the bottom of the reaction zone 3. The overflow zone 4 allows water to flow back into the reaction zone 3, extending the residence time of wastewater and ozone in the reaction chamber 1 to some extent. The drive pump 14 provides driving force to the circulation loop 5, allowing the mixed water in the overflow zone 4 to flow back into the reaction zone 3. The bubble generator 6 stirs and cuts the initially mixed wastewater and ozone to form bubble water, improving the mixing effect of ozone and wastewater. The gas generator 21 is mainly used to generate ozone and deliver ozone to the bubble generator 21 and the aeration disc 9. The aeration disc 9 can supplement a certain amount of ozone to the reaction chamber 1, improving the purification effect of wastewater.

[0026] Specifically, as follows: Figure 1 and Figure 6 As shown, the reaction chamber 1 can be a square column structure or a cylindrical tube structure. A first inlet 10 and a first outlet 11 are arranged on the side wall of the reaction chamber 1. The first inlet 10 is located near the bottom of the reaction chamber 1, and the first outlet 11 is located near the top of the reaction chamber 1. The first inlet 10 is mainly used to supply wastewater to the reaction chamber 1, and the first outlet 11 is mainly used to discharge the treated wastewater. A partition plate 2 is arranged inside the reaction chamber 1. The bottom of the partition plate 2 is connected to the bottom of the reaction chamber 1, and the top of the partition plate 2 is located at the corresponding position of the first outlet 11. Therefore, there is a certain gap between the top of the partition plate 2 and the top of the reaction chamber 1, so the top of the reaction zone 3 and the overflow zone 4 inside the reaction chamber 1 are connected. When wastewater is continuously supplied through the first inlet 10, the water level in the reaction zone 3 gradually rises until it exceeds the top of the partition plate 2. Then the wastewater overflows into the overflow zone 4, and the water level in the overflow zone 4 also gradually rises until it exceeds the top of the partition plate 2.

[0027] It should be noted that the partition plate 2 inside reaction chamber 1 can be centrally located (e.g., Figure 6 As shown), offset settings can also be configured (e.g. Figure 1(as shown); When the offset setting is adopted, preferably, the volume of the reaction zone 3 is larger than the volume of the overflow zone 4. The larger volume of the reaction zone 3 can further increase the residence time of the bubble water in the reaction zone 3 and improve the reaction effect of ozone and wastewater.

[0028] A circulation inlet 28 and a circulation outlet 29 are provided on the bottom side wall of the reaction chamber 1. A circulation loop 5 is arranged between the circulation inlet 28 and the circulation outlet 29. Specifically, a bubble generator 6 and a drive pump 14 are distributed sequentially from the circulation outlet 29 to the circulation inlet 28.

[0029] Among them, such as Figure 2 As shown, the bubble generator 6 is cylindrical in shape. Its two axial ends are the second inlet 12 and the second outlet 13, respectively. Along the direction from the second inlet 12 to the second outlet 13, the diameter of the tube in the middle of the bubble generator 6 first decreases and then increases to form a bubble generating chamber 7. The bubble generating chamber 7 is a Venturi tube structure. Inside the bubble generator 6, a stirring impeller 8 is also installed. The stirring impeller 8 is a rotatable blade structure that can fully stir and cut the gas in the wastewater to form micro-nano bubbles. The stirring impeller 8 is arranged near the bubble generator 6, close to the second inlet 12, specifically located... The venturi tube structure has an end; furthermore, an air inlet 30 is also provided on the side of the bubble generator 6 near the second water inlet 12, and the air inlet 30 is located between the stirring impeller 8 and the second water inlet 12; when the wastewater enters from the second water inlet 12, it is initially mixed with the ozone entering from the air inlet 30, and then stirred and cut by the stirring impeller 8 to form micro-nano-sized bubble water. Then, it passes through the venturi tube structure of the bubble generating chamber 7, where the velocity of the wastewater first increases and then decreases, resulting in unstable liquid flow. This allows the aggregation and splitting of bubbles to effectively promote the mixing effect between the bubbles and the wastewater, improving the reaction effect between ozone and wastewater. It should be noted that when the bubble generator 6 is arranged, the air inlet 30 should be positioned downwards (at the bottom). This way, when the gas enters the bubble generator 6, the bubbles will flow from the bottom to the top, and the flow direction of the wastewater is perpendicular to the ozone inlet direction, allowing the ozone and wastewater to mix as effectively as possible.

[0030] like Figure 4As shown, the drive pump 14 is located at the output end of the bubble generator 6, that is, the drive pump 14 is located between the bubble generator 6 and the reaction chamber 1. The drive pump 14 can pump the bubble water generated in the bubble generator 6 into the reaction chamber 1. Specifically, the drive pump 14 includes a pump body 18, a drive motor 31, a pump cover 32, and a rotating impeller 33 located inside the pump body 18. The output end of the drive motor 31 is provided with a rotating shaft, and the rotating impeller 33 is provided on the rotating shaft. The rotating impeller 33 can rotate inside the pump body 18, pumping out the bubble water. The pump cover 32 is arranged at the output end of the drive motor 31 and connected to the pump body 18. The pump body 18 includes a pump body inlet 34 and a pump body outlet 35. A right-angled water channel 20 is arranged between the pump body inlet 34 and the rotating impeller 33. The right-angled water channel 20 has a right-angled multi-bend structure. When the bubble water enters the right-angled water channel 20, it can generate turbulence and collision in the water channel, promoting the mixing effect of ozone and wastewater. After passing through the rotating impeller 33, the bubbly water is ejected at high speed from the pump body outlet 35 into the reaction chamber 1. The rotating impeller 33, the rotating shaft, and the inside of the pump body 18 are all equipped with mechanical seals, which can effectively prevent the bubbly water from entering the side where the drive motor 31 is located.

[0031] An aeration disc 9 is also installed directly below reaction chamber 1, such as... Figure 6 As shown ( Figure 1 (not shown); for example Figure 3 As shown, the aeration disc 9 includes a disc base 16, a disc cover 15, a rubber gasket 36, and a connecting flange 37. Specifically, the disc base 16 is a hemispherical structure that is smaller at the bottom and larger at the top. The disc cover 15 and the diaphragm 17 are arranged on the top of the disc base 16. The disc cover 15 can be fitted and snapped together with the circular opening of the disc base 16, and presses the diaphragm 17 tightly against the circular opening at the top of the disc base 16. The center of the disc cover 15 has a through hole, which exposes the diaphragm 17. An air chamber is formed below the diaphragm 17 and inside the disc base 16. Several evenly distributed aeration holes are provided on the diaphragm 17, and an air inlet 38 is provided below the disc base 16. A distribution plate 39 is installed at the air inlet 38, which is connected to a gas generator 21, continuously supplying ozone to the aeration disc 9. The ozone is then dispersed to various positions of the aeration disc 9 through the distribution plate 39, and finally enters the reaction zone 3 and overflow zone 4 of the reaction chamber 1 through the aeration holes, mixing with the wastewater. A check valve is also provided on the distribution plate 39 to prevent gas backflow. Furthermore, the disc cover 15 and the disc base 16 are fixed together by a connecting flange 37 and connected to the bottom of the reaction chamber 1. A rubber gasket 36 is provided between the disc cover 15 and the connecting flange 37 to protect the disc cover 15 and the diaphragm 17, while also increasing the sealing within the aeration disc 9.

[0032] It should also be noted that the aeration holes on the membrane 17 of the aeration disc 9 are not uniform in size; the aeration holes on the reaction zone 3 side are smaller than those on the overflow zone 4 side. Since the wastewater flows from bottom to top in the reaction zone 3, which is the same direction as the gas supplied by the aeration disc 9, the ozone bubbles supplied by the aeration disc 9 to the reaction zone 3 need to be as small as possible. These microbubbles have a high specific surface area and a long residence time in water, allowing the ozone bubbles to mix thoroughly with the wastewater. In the overflow zone 4, the wastewater flows from top to bottom, opposite to the direction of the gas supplied by the aeration disc 9. Therefore, after ozone is supplied by the aeration disc 9, larger bubbles need to be formed in the wastewater in the overflow zone 4. This allows the bubbles to have a greater upward tendency, counteracting the downward resistance of the wastewater. On the other hand, it also prevents most of the ozone bubbles from being immediately drawn away by the circulation outlet 29, ensuring the ozone replenishment in the overflow zone 4. As the bubbles rise in the overflow zone 4, they can create a disturbance effect, improving the mixing effect. Furthermore, it allows a small amount of ozone bubbles to be drawn away by the circulation outlet 29 into the circulation loop 5, and then replenished to the bubble generator 6, ensuring or increasing the ozone content in the bubble generator 6, thereby improving the mixing effect of ozone and wastewater.

[0033] Two vent pipes 40 are installed directly below the reaction chamber 1, located at the bottom of the reaction zone 3 and overflow zone 4 respectively. These vent pipes are designed to drain wastewater from both zones. Drainage is only required for cleaning and maintenance. An exhaust pipe 41 is located directly above the reaction chamber 1. An exhaust gas breaker (not shown in the figure) is installed on the exhaust pipe 41. The exhaust pipe 41 discharges excess gas from the reaction chamber 1, and the exhaust gas breaker ensures complete gas reaction, preventing airborne pollution. It should also be noted that observation mirrors 42 (such as...) can be installed on the first inlet 10 and the first outlet 11 of the reaction chamber 1. Figure 6 As shown, through observation through the observation mirror 42, the operator can adjust the wastewater inflow rate, ozone supply rate, etc. according to the wastewater color to achieve appropriate wastewater discharge standards.

[0034] Example 2: Figure 1 or Figure 6The ozone projection reactor water purification system shown includes a reaction chamber 1, a circulation loop 5 located at the bottom of the reaction chamber 1, a drive pump 14 and a bubble generator 6 located on the circulation loop 5, and a gas generator 21 connected to both the bubble generator 6 and the aeration disc 9. The reaction chamber 1 is equipped with vertically distributed partition plates 2, which divide the reaction chamber 1 into two areas: a reaction zone 3 and an overflow zone 4. The reaction zone 3 and overflow zone 4 are the main mixing and reaction sites for wastewater and ozone. The circulation loop 5 connects to the bottom of the overflow zone 4 and the bottom of the reaction zone 3. The overflow zone 4 allows water to flow back into the reaction zone 3, extending the residence time of wastewater and ozone in the reaction chamber 1 to some extent. The drive pump 14 provides driving force to the circulation loop 5, allowing the mixed water in the overflow zone 4 to flow back into the reaction zone 3. The bubble generator 6 stirs and cuts the initially mixed wastewater and ozone to form bubble water, improving the mixing effect of ozone and wastewater. The gas generator 21 is mainly used to generate ozone and deliver ozone to the bubble generator 21 and the aeration disc 9. The aeration disc 9 can supplement a certain amount of ozone to the reaction chamber 1, improving the purification effect of wastewater.

[0035] Specifically, as follows: Figure 1 and Figure 6 As shown, the reaction chamber 1 can be a square column structure or a cylindrical tube structure. A first inlet 10 and a first outlet 11 are arranged on the side wall of the reaction chamber 1. The first inlet 10 is located near the bottom of the reaction chamber 1, and the first outlet 11 is located near the top of the reaction chamber 1. The first inlet 10 is mainly used to supply wastewater to the reaction chamber 1, and the first outlet 11 is mainly used to discharge the treated wastewater. A partition plate 2 is arranged inside the reaction chamber 1. The bottom of the partition plate 2 is connected to the bottom of the reaction chamber 1, and the top of the partition plate 2 is located at the corresponding position of the first outlet 11. Therefore, there is a certain gap between the top of the partition plate 2 and the top of the reaction chamber 1, so the top of the reaction zone 3 and the overflow zone 4 inside the reaction chamber 1 are connected. When wastewater is continuously supplied through the first inlet 10, the water level in the reaction zone 3 gradually rises until it exceeds the top of the partition plate 2. Then the wastewater overflows into the overflow zone 4, and the water level in the overflow zone 4 also gradually rises until it exceeds the top of the partition plate 2.

[0036] It should be noted that the partition plate 2 inside reaction chamber 1 can be centrally located (e.g., Figure 6 As shown), offset settings can also be configured (e.g. Figure 1 (as shown); When the offset setting is adopted, preferably, the volume of the reaction zone 3 is larger than the volume of the overflow zone 4. The larger volume of the reaction zone 3 can further increase the residence time of the bubble water in the reaction zone 3 and improve the reaction effect of ozone and wastewater.

[0037] A circulation inlet 28 and a circulation outlet 29 are provided on the bottom side wall of the reaction chamber 1. A circulation loop 5 is arranged between the circulation inlet 28 and the circulation outlet 29. Specifically, a bubble generator 6 and a drive pump 14 are distributed sequentially from the circulation outlet 29 to the circulation inlet 28.

[0038] Among them, such as Figure 2 As shown, the bubble generator 6 is cylindrical in shape. Its two axial ends are the second inlet 12 and the second outlet 13, respectively. Along the direction from the second inlet 12 to the second outlet 13, the diameter of the tube in the middle of the bubble generator 6 first decreases and then increases to form a bubble generating chamber 7. The bubble generating chamber 7 is a Venturi tube structure. Inside the bubble generator 6, a stirring impeller 8 is also installed. The stirring impeller 8 is a rotatable blade structure that can fully stir and cut the gas in the wastewater to form micro-nano bubbles. The stirring impeller 8 is arranged near the bubble generator 6, close to the second inlet 12, specifically located... The venturi tube structure has an end; furthermore, an air inlet 30 is also provided on the side of the bubble generator 6 near the second water inlet 12, and the air inlet 30 is located between the stirring impeller 8 and the second water inlet 12; when the wastewater enters from the second water inlet 12, it is initially mixed with the ozone entering from the air inlet 30, and then stirred and cut by the stirring impeller 8 to form micro-nano-sized bubble water. Then, it passes through the venturi tube structure of the bubble generating chamber 7, where the velocity of the wastewater first increases and then decreases, resulting in unstable liquid flow. This allows the aggregation and splitting of bubbles to effectively promote the mixing effect between the bubbles and the wastewater, improving the reaction effect between ozone and wastewater. It should be noted that when the bubble generator 6 is arranged, the air inlet 30 should be positioned downwards (at the bottom). This way, when the gas enters the bubble generator 6, the bubbles will flow from the bottom to the top, and the flow direction of the wastewater is perpendicular to the ozone inlet direction, allowing the ozone and wastewater to mix as effectively as possible.

[0039] like Figure 4As shown, the drive pump 14 is located at the output end of the bubble generator 6, that is, the drive pump 14 is located between the bubble generator 6 and the reaction chamber 1. The drive pump 14 can pump the bubble water generated in the bubble generator 6 into the reaction chamber 1. Specifically, the drive pump 14 includes a pump body 18, a drive motor 31, a pump cover 32, and a rotating impeller 33 located inside the pump body 18. The output end of the drive motor 31 is provided with a rotating shaft, and the rotating impeller 33 is provided on the rotating shaft. The rotating impeller 33 can rotate inside the pump body 18, pumping out the bubble water. The pump cover 32 is arranged at the output end of the drive motor 31 and connected to the pump body 18. The pump body 18 includes a pump body inlet 34 and a pump body outlet 35. A right-angled water channel 20 is arranged between the pump body inlet 34 and the rotating impeller 33. The right-angled water channel 20 has a right-angled multi-bend structure. When the bubble water enters the right-angled water channel 20, it can generate turbulence and collision in the water channel, promoting the mixing effect of ozone and wastewater. After passing through the rotating impeller 33, the bubbly water is ejected at high speed from the pump body outlet 35 into the reaction chamber 1. The rotating impeller 33, the rotating shaft, and the inside of the pump body 18 are all equipped with mechanical seals, which can effectively prevent the bubbly water from entering the side where the drive motor 31 is located.

[0040] An aeration disc 9 is also installed directly below reaction chamber 1, such as... Figure 6 As shown ( Figure 1 (not shown); for example Figure 3 As shown, the aeration disc 9 includes a disc base 16, a disc cover 15, a rubber gasket 36, and a connecting flange 37. Specifically, the disc base 16 is a hemispherical structure that is smaller at the bottom and larger at the top. The disc cover 15 and the diaphragm 17 are arranged on the top of the disc base 16. The disc cover 15 can be fitted and snapped together with the circular opening of the disc base 16, and presses the diaphragm 17 tightly against the circular opening at the top of the disc base 16. The center of the disc cover 15 has a through hole, which exposes the diaphragm 17. An air chamber is formed below the diaphragm 17 and inside the disc base 16. Several evenly distributed aeration holes are provided on the diaphragm 17, and an air inlet 38 is provided below the disc base 16. A distribution plate 39 is installed at the air inlet 38, which is connected to a gas generator 21, continuously supplying ozone to the aeration disc 9. The ozone is then dispersed to various positions of the aeration disc 9 through the distribution plate 39, and finally enters the reaction zone 3 and overflow zone 4 of the reaction chamber 1 through the aeration holes, mixing with the wastewater. A check valve is also provided on the distribution plate 39 to prevent gas backflow. Furthermore, the disc cover 15 and the disc base 16 are fixed together by a connecting flange 37 and connected to the bottom of the reaction chamber 1. A rubber gasket 36 is provided between the disc cover 15 and the connecting flange 37 to protect the disc cover 15 and the diaphragm 17, while also increasing the sealing within the aeration disc 9.

[0041] It should also be noted that the aeration holes on the membrane 17 of the aeration disc 9 are not uniform in size; the aeration holes on the reaction zone 3 side are smaller than those on the overflow zone 4 side. Since the wastewater flows from bottom to top in the reaction zone 3, which is the same direction as the gas supplied by the aeration disc 9, the ozone bubbles supplied by the aeration disc 9 to the reaction zone 3 need to be as small as possible. These microbubbles have a high specific surface area and a long residence time in water, allowing the ozone bubbles to mix thoroughly with the wastewater. In the overflow zone 4, the wastewater flows from top to bottom, opposite to the direction of the gas supplied by the aeration disc 9. Therefore, after ozone is supplied by the aeration disc 9, larger bubbles need to be formed in the wastewater in the overflow zone 4. This allows the bubbles to have a greater upward tendency, counteracting the downward resistance of the wastewater. On the other hand, it also prevents most of the ozone bubbles from being immediately drawn away by the circulation outlet 29, ensuring the ozone replenishment in the overflow zone 4. As the bubbles rise in the overflow zone 4, they can create a disturbance effect, improving the mixing effect. Furthermore, it allows a small amount of ozone bubbles to be drawn away by the circulation outlet 29 into the circulation loop 5, and then replenished to the bubble generator 6, ensuring or increasing the ozone content in the bubble generator 6, thereby improving the mixing effect of ozone and wastewater.

[0042] Two vent pipes 40 are installed directly below the reaction chamber 1, located at the bottom of the reaction zone 3 and overflow zone 4 respectively. These vent pipes are designed to drain wastewater from both zones. Drainage is only required for cleaning and maintenance. An exhaust pipe 41 is located directly above the reaction chamber 1. An exhaust gas breaker (not shown in the figure) is installed on the exhaust pipe 41. The exhaust pipe 41 discharges excess gas from the reaction chamber 1, and the exhaust gas breaker ensures complete gas reaction, preventing airborne pollution. It should also be noted that observation mirrors 42 (such as...) can be installed on the first inlet 10 and the first outlet 11 of the reaction chamber 1. Figure 6 As shown, through observation through the observation mirror 42, the operator can adjust the wastewater inflow rate, ozone supply rate, etc. according to the wastewater color to achieve appropriate wastewater discharge standards.

[0043] Gas generator 21 is simultaneously connected to the air inlet 30 of bubble generator 6 and the air inlet 38 at the bottom of aeration disc 9; specifically, as shown in... Figure 5As shown, the gas generator 21 includes an electrolysis assembly 22, a cooling assembly 23, and a third water inlet 26, a third water outlet 27, and a gas outlet 24 located on the gas generator 21. The electrolysis assembly generates ozone through electrolysis. The cooling assembly 23 includes a cooling chamber through which cooling water is circulated to cool the ozone inside the gas generator 21, preventing the ozone from decomposing due to instability. Specifically, the third water inlet 26, the third water outlet 27, and the gas outlet 24 are located on the same side of the gas generator 21. The cooling chamber is located inside the gas generator 21 near the gas outlet 24, and the electrolysis assembly 22 is located inside the gas generator 21 on the side away from the gas outlet 24. This design allows the ozone to be sufficiently cooled by the cooling chamber, preventing direct emission of ozone. The electrolysis unit 22 is connected to the gas outlet 24 through a gas pipe. In order to improve the cooling effect, the gas pipe can be coiled around the outer ring of the cooling chamber or penetrate into the interior of the cooling chamber. The cooling chamber is connected to the third water inlet 26 and the third water outlet 27 to realize the continuous flow of circulating water.

[0044] A fan 43 is also installed inside the gas generator 21, located close to the electrolysis component 22. The fan 43 primarily cools the electrolysis component 22 to prevent overheating. A rotor flow meter 44, a power switch 45, and a touch screen display 46 are also installed on the gas generator 21. The rotor flow meter 44 detects the amount and rate of ozone production; the power switch 45 is used to turn the gas generator 21 on and off; and the touch screen display 46 displays the operating status of the gas generator and allows for its control.

[0045] This solution not only avoids the clogging problems that can occur with traditional water treatment methods, but also further improves water treatment efficiency and reduces COD and TOC levels. The following are some influent and effluent water quality data from the trial operation of the traditional purification system and the device of this invention, as shown in Tables 1 and 2. The trial conditions were as follows: the trial was conducted outdoors within the plant area; the influent was from the effluent of the plant's end-of-pipe biological MBR treatment system; the effective volume of the trial device was approximately 60L; the influent and effluent flow rates were approximately 0.5L / min; and the system operated intermittently daily.

[0046] Serial number Influent (mg / L) Effluent (mg / L) Removal rate (%) 1 218 130 40.4 2 264 140 47.0 3 229 102 55.5 4 268 117 56.3 5 252 150 40.5 6 294 123 58.2

[0047] Table 1. COD data of water from traditional reactors

[0048] Serial number Influent (mg / L) Effluent (mg / L) Removal rate (%) 1 327 120 63.3 2 298 126 57.7 3 325 129 60.3 4 304 100 67.1

[0049] Table 2. Water quality COD data of the device of the present invention

[0050] According to Tables 1 and 2, the highest COD removal rate of the traditional reactor is 58.2%, which is basically around 50%; the COD removal rate of the device proposed in this scheme can reach 67.1%, which is basically around 60%. The device proposed in this scheme can improve the COD removal effect of ozone oxidation.

[0051] Example 3: A water treatment method using an ozone projection reactor, implemented using an ozone projection reactor water purification system as described in Example 1 or Example 2 above. The specific steps are as follows.

[0052] First, a certain amount of wastewater needs to be introduced into the reaction chamber 1 so that the water volume in the reaction zone 3 and the overflow zone 4 does not exceed the top of the partition plate 2. At this time, the wastewater in the reaction zone 3 and the overflow zone 4 are integrated. Then, the drive pump 14 is started, and the drive motor 31 works, so that the entire circulation loop 5 starts to operate. At the same time, the gas generator 21, the electrolysis component 22 and the cooling component 23 are started to work. The gas generator 21 continuously delivers stable ozone to the air inlet 30 of the bubble generator 6 and the air inlet 38 at the bottom of the aeration plate 9. In the bubble generator 6, bubbles are introduced from bottom to top and initially mixed with the wastewater. Then, after being stirred and cut by the impeller 8, micro-nano bubble water is formed. Then, it passes through the bubble generation chamber 7 of the reducer to further improve the mixing effect and is input into the reaction zone 3 of the reaction chamber 1 through the drive pump 14. The wastewater in the overflow zone 4 is also transported to the bubble generator 6 through the circulation loop 5. In addition, the gas generator 21 also supplies a portion of ozone into the aeration disc 9. The ozone passes through the membrane 17 on the aeration disc 9 and enters the reaction zone 3 and overflow zone 4 of the reaction chamber 1, supplementing the ozone in the reaction zone 3 and overflow zone 4. After working in this manner for a period of time, the color of the wastewater in the reaction chamber 1 is significantly reduced. Then, the first outlet 11 and the first inlet 10 can be opened. The first inlet 10 continues to supply wastewater to the reaction zone 3, while the first outlet 11 can simultaneously discharge qualified wastewater, achieving a certain dynamic water treatment effect.

[0053] It should be noted that, since the aeration orifice diameter of the membrane 17 located on the reaction zone 3 side is smaller than that located on the overflow zone 4 side, the gas rate introduced into the overflow zone 4 by the aeration disc 9 will be greater than the gas rate in the reaction zone 3.

Claims

1. An ozone projection reactor water purification system, characterized in that, include The reaction chamber is equipped with a partition plate, which divides the reaction chamber into a reaction zone and an overflow zone. The top of the reaction zone and the overflow zone are connected, and a circulation loop is provided at the bottom. Through the circulation loop, the water in the overflow zone flows back into the reaction zone. A bubble generator is provided on the circulation loop. The bubble generator includes a bubble generating chamber. The diameter of the bubble generating chamber decreases and then increases along the axial direction. A stirring impeller is provided inside the bubble generator. An aeration disc is located at the bottom of the reaction chamber to supply gas to the reaction zone and the overflow zone. The aeration holes on the reaction zone side have a smaller diameter than the aeration holes on the overflow zone side.

2. The ozone projection reactor water purification system according to claim 1, characterized in that, The reaction chamber further includes a first water inlet and a first water outlet. The first water inlet is located at the bottom of the reaction chamber and within the reaction zone, and the first water outlet is located at the top of the reaction chamber and corresponds to the top of the partition plate.

3. The ozone projection reactor water purification system according to claim 2, characterized in that, The bubble generator includes a second inlet and a second outlet. A drive pump is provided between the second outlet and the reaction chamber, and the drive pump is connected to the reaction zone.

4. The ozone projection reactor water purification system according to claim 3, characterized in that, The aeration disc includes a disc cover and a hemispherical disc base. A diaphragm is pressed between the circular openings of the disc cover and the disc base, and the diaphragm has a plurality of aeration holes.

5. The ozone projection reactor water purification system according to claim 3, characterized in that, The drive pump includes a pump body, in which a rotating impeller is provided, and a right-angled waterway is provided between the water-facing surface of the rotating impeller and the pump body inlet.

6. The ozone projection reactor water purification system according to any one of claims 3 to 5, characterized in that, It also includes a gas generator, which is connected to the aeration disc and the bubble generator.

7. The ozone projection reactor water purification system according to claim 6, characterized in that, The gas generator is equipped with an electrolysis component and a cooling component. The gas generator has a gas outlet. The electrolysis component is connected to the gas outlet through a gas pipe. The gas pipe and the cooling component are arranged as one unit.

8. The ozone projection reactor water purification system according to claim 7, characterized in that, The cooling assembly includes a cooling chamber, the gas generator is provided with a third water inlet and a third water outlet, and the cooling chamber is connected to the third water inlet and the third water outlet through a water pipe.

9. A water treatment method using an ozone projection reactor, characterized in that, The ozone projection reactor water purification system as described in claim 8 is implemented by the following steps: S1: Start the drive pump in the circulation loop to circulate the wastewater in the reaction zone and the wastewater in the overflow zone. S2: The gas generator introduces ozone gas into the bubble generator and aeration disc. The ozone gas forms micro-nano-sized bubble water through the stirring impeller and introduces the bubble water into the reaction zone. The aeration disc replenishes ozone gas to the overflow area and reaction zone of the reaction chamber. S3: Observe the color of the wastewater in the reaction chamber. Once the color meets the standard, open the first outlet of the reaction chamber for discharge.

10. A water treatment method using an ozone projection reactor according to claim 9, characterized in that, The gas flow rate from the aeration disc to the overflow zone is greater than the gas flow rate from the aeration disc to the reaction zone.

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