Catalytic ozonation treatment system for organic wastewater

Abstract

The utility model relates to an organic wastewater ozone catalytic oxidation treatment system which comprises a raw water tank, a water inlet pump is arranged on the outer side of the raw water tank, the output end of the raw water tank is fixedly connected with the input end of the water inlet pump, and a treatment assembly is arranged on the outer side of the raw water tank; the treatment assembly comprises a first-stage reaction tower, an alternating current motor, a rotating pipe, a gas inlet pipe, a communicating pipe and a second-stage reaction tower, the alternating current motor is fixedly arranged on the lower end face of the first-stage reaction tower, the gas inlet pipe is arranged on the upper end face of the first-stage reaction tower, and the rotating pipe is arranged in the first-stage reaction tower. An alternating current motor is arranged to drive a rotating pipe to rotate, meanwhile, ozone enters the rotating pipe through an air inlet pipe and then enters a communicating pipe through the rotating pipe, meanwhile, due to rotation of the rotating pipe and the communicating pipe, generated centrifugal force counteracts the pressure of sewage, the pressure generated when the ozone is injected into the sewage can be greatly reduced, and ozone injection work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of organic wastewater treatment, in particular to an organic wastewater ozone catalytic oxidation treatment system. Background Art

[0002] According to the search, Chinese patent literature, announcement number: CN208561948U, discloses an ozone catalytic oxidation treatment system for organic wastewater. This method couples and integrates hydraulic technology, dissolved gas release technology and ozone catalytic oxidation technology, and through process optimization, adds an internal circulation loop in the treatment process in the secondary reaction tower, which improves the utilization rate of ozone and can be used to treat wastewater containing difficult-to-degrade organic pollutants efficiently and at low cost. However, the ozone catalytic oxidation treatment system for organic wastewater still has defects during use. Since the ozone needs to be injected into the sewage, it needs to increase the ozone pressure by a large amount, which causes many inconveniences, as well as insufficient mixing of ozone and sewage and low purification efficiency. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides an ozone catalytic oxidation treatment system for organic wastewater, which drives a rotating tube to rotate by an AC motor, and at the same time, ozone enters the rotating tube through an air intake pipe, and then enters the connecting tube through the rotating tube. At the same time, due to the rotation of the rotating tube and the connecting tube, the centrifugal force generated by the rotation of the rotating tube and the connecting tube offsets the pressure of the sewage, which can greatly reduce the pressure when ozone is injected into the sewage, making it easier to inject ozone; at the same time, the sewage is quickly stirred evenly, and at the same time, the catalyst filler layer can be selectively set to one layer or multiple layers, thereby solving the above-mentioned technical problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ozone catalytic oxidation treatment system for organic wastewater, comprising a raw water tank, a water inlet pump is arranged outside the raw water tank, the output end of the raw water tank is fixedly connected to the input end of the water inlet pump, and a treatment component is arranged outside the raw water tank;

[0007] The processing component includes a primary reaction tower, an AC motor, a rotating tube, an air intake pipe, a connecting tube and a secondary reaction tower. The AC motor is fixedly installed on the lower end surface of the primary reaction tower, the air intake pipe is installed on the upper end surface of the primary reaction tower, a rotating tube is installed inside the primary reaction tower, a plurality of connecting tubes are fixedly connected to the outer wall of the rotating tube, the upper end surface of the rotating tube is fixedly connected to the air intake pipe, the rotating tube, the air intake pipe and the connecting tube are interconnected, the other end of the connecting tube is opened, and a catalyst packing layer is installed inside the secondary reaction tower.

[0008] Preferably, an oxygen tank is arranged outside the raw water tank, an ozone generator is arranged outside the oxygen tank, and an output end of the oxygen tank is fixedly connected to an input end of the ozone generator.

[0009] Through the above technical solution, the raw water tank is used to inject organic wastewater and adjust the pH value of the organic wastewater in the raw water tank.

[0010] Preferably, a filter is provided on the outside of the water inlet pump, a hydrodynamic cavitation device is provided on the outside of the filter, the output end of the water inlet pump is fixedly connected to the input end of the filter, the output end of the filter is fixedly connected to the input end of the hydrodynamic cavitation device, and the output end of the hydrodynamic cavitation device is fixedly connected to the primary reaction tower.

[0011] Through the above technical solution, the filter is set to filter the suspended matter in the organic wastewater.

[0012] Preferably, the output end of the ozone generator is fixedly connected to the input ends of the primary reaction tower, the secondary reaction tower and the hydrodynamic cavitation device respectively, an aeration disk is provided at the upper end of the inner bottom wall of the secondary reaction tower, the primary reaction tower and the secondary reaction tower are connected by a pipeline, and a drive assembly is provided on the outer side of the secondary reaction tower.

[0013] Through the above technical solution, the ozone generator is set to provide ozone to the primary reaction tower, the secondary reaction tower and the hydrodynamic cavitation device.

[0014] Preferably, the driving assembly includes a water outlet pump and a water inlet pump, a water inlet pump and a water production tank are arranged on the outside of the secondary reaction tower, the output end of the secondary reaction tower is fixedly connected to the input end of the water outlet pump, the output end of the water outlet pump is fixedly connected to the water inlet end of the water production tank, an ozone exhaust gas destructor is arranged on the outside of the secondary reaction tower, and the output ends of the primary reaction tower and the secondary reaction tower are fixedly connected to the input end of the ozone exhaust gas destructor.

[0015] Through the above technical solution and the setting of the water outlet pump, the treated water is pumped out.

[0016] Compared with the prior art, the utility model provides an organic wastewater ozone catalytic oxidation treatment system, which has the following beneficial effects:

[0017] The utility model arranges an AC motor to drive the rotating tube to rotate, and at the same time, ozone enters the rotating tube through the air inlet pipe, and then enters the connecting tube through the rotating tube. At the same time, due to the rotation of the rotating tube and the connecting tube, the centrifugal force generated by the rotation of the rotating tube and the connecting tube offsets the pressure of the sewage, which can greatly reduce the pressure when the ozone is injected into the sewage, and facilitate the injection of the ozone; at the same time, the sewage is quickly stirred evenly, and the catalyst filler layer can be selectively set to one layer or multiple layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model organic wastewater ozone catalytic oxidation treatment system.

[0019] Among them: 1. Raw water tank; 2. Water inlet pump; 3. Filter; 4. Hydrodynamic cavitation device; 5. Primary reaction tower; 6. AC motor; 7. Rotating pipe; 8. Air inlet pipe; 9. Connecting pipe; 10. Secondary reaction tower; 11. Catalyst packing layer; 12. Aeration plate; 13. Water outlet pump; 14. Ozone exhaust destructor; 15. Oxygen tank; 16. Ozone generator; 17. Water production tank; 18. Drive assembly; 19. Processing assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] like Figure 1 As shown, the utility model provides an ozone catalytic oxidation treatment system for organic wastewater, comprising a raw water tank 1, an inlet pump 2 is arranged outside the raw water tank 1, the output end of the raw water tank 1 is fixedly connected to the input end of the inlet pump 2, and a treatment component 19 is arranged outside the raw water tank 1;

[0023] The processing assembly 19 includes a primary reaction tower 5, an AC motor 6, a rotating tube 7, an air intake pipe 8, a connecting tube 9 and a secondary reaction tower 10. The AC motor 6 is fixedly installed on the lower end surface of the primary reaction tower 5, the air intake pipe 8 is installed on the upper end surface of the primary reaction tower 5, a rotating tube 7 is installed inside the primary reaction tower 5, a plurality of connecting tubes 9 are fixedly connected to the outer wall of the rotating tube 7, the upper end surface of the rotating tube 7 is fixedly connected to the air intake pipe 8, the rotating tube 7, the air intake pipe 8 and the connecting tube 9 are interconnected, the other end of the connecting tube 9 is opened, and a catalyst packing layer 11 is installed inside the secondary reaction tower 10.

[0024] Specifically, an oxygen tank 15 is disposed outside the raw water tank 1, and an ozone generator 16 is disposed outside the oxygen tank 15, and the output end of the oxygen tank 15 is fixedly connected to the input end of the ozone generator 16. The advantage is that the ozone generator 16 is used to convert the oxygen output from the oxygen tank 15 into ozone, and the raw water tank 1 is used to inject organic wastewater and adjust the pH value of the organic wastewater in the raw water tank 1.

[0025] Specifically, a filter 3 is arranged outside the water inlet pump 2, a hydrodynamic cavitation device 4 is arranged outside the filter 3, the output end of the water inlet pump 2 is fixedly connected to the input end of the filter 3, the output end of the filter 3 is fixedly connected to the input end of the hydrodynamic cavitation device 4, and the output end of the hydrodynamic cavitation device 4 is fixedly connected to the primary reaction tower 5. The advantages are that the setting of the water inlet pump 2 pumps the adjusted pH value into the filter 3, the setting of the filter 3 is used to filter the suspended matter in the organic wastewater, and the setting of the hydrodynamic cavitation device 4 is used to generate high temperature and high pressure, so that the organic wastewater and ozone form a gas-liquid mixture to preliminarily degrade the organic pollutants.

[0026] Specifically, the output end of the ozone generator 16 is fixedly connected to the input end of the primary reaction tower 5, the secondary reaction tower 10 and the hydrodynamic cavitation device 4, respectively, the upper end of the inner bottom wall of the secondary reaction tower 10 is provided with an aeration plate 12, the primary reaction tower 5 and the secondary reaction tower 10 are connected through a pipeline, and a driving component 18 is provided on the outer side of the secondary reaction tower 10. The advantage is that the ozone generator 16 provides ozone to the primary reaction tower 5, the secondary reaction tower 10 and the hydrodynamic cavitation device 4, and the aeration plate 12 is provided with aeration micropores, and the aperture of the aeration micropores is 0.2-100 μm. The aeration action of the aeration micropores generates micro-nano bubbles with a diameter of 5-20 μm, and a milky gas-liquid mixture is obtained, so that ozone is fully in contact with the wastewater, a good mass transfer effect is obtained, and the rising rate of the bubbles in the water is reduced. At the same time, since the output end of the raw water tank 1 is fixedly connected to the input end of the water inlet pump 2, the output end of the oxygen tank 15 is fixedly connected to the input end of the ozone generator 16, the output end of the water inlet pump 2 is fixedly connected to the input end of the filter 3, the output end of the filter 3 is fixedly connected to the input end of the hydrodynamic cavitation device 4, the output end of the hydrodynamic cavitation device 4 is fixedly connected to the primary reaction tower 5, the output end of the water inlet pump 2 is fixedly connected to the input end of the filter 3, the output end of the filter 3 is fixedly connected to the input end of the hydrodynamic cavitation device 4, and the output end of the hydrodynamic cavitation device 4 is fixedly connected to the primary reaction tower 5. The positions of these output ends and input ends are different. Finally, the wastewater treated by the primary reaction tower 5 is treated by the secondary reaction tower 10.

[0027] Embodiment 2:

[0028] like Figure 1As shown, as an improvement on the previous embodiment. Specifically, the drive assembly 18 includes a water outlet pump 13 and a water inlet pump 2, the water inlet pump 2 and the water production tank 17 are arranged outside the secondary reaction tower 10, the output end of the secondary reaction tower 10 is fixedly connected to the input end of the water outlet pump 13, the output end of the water outlet pump 13 is fixedly connected to the water inlet end of the water production tank 17, the ozone tail gas destroyer 14 is arranged outside the secondary reaction tower 10, and the output end of the primary reaction tower 5 and the secondary reaction tower 10 is fixedly connected to the input end of the ozone tail gas destroyer 14. The advantage is that, since the output end of the primary reaction tower 5 and the secondary reaction tower 10 is fixedly connected to the input end of the ozone tail gas destroyer 14, but the output end of the primary reaction tower 5 and the secondary reaction tower 10 is not consistent with the above-mentioned output end, the setting of the water outlet pump 13 guides the treated water in the secondary reaction tower 10 to the inside of the water production tank 17.

[0029] When in use, the device uses an external power supply and control device to first inject organic wastewater into the raw water tank 1, and adjust the pH value of the organic wastewater in the raw water tank 1, and then pump the adjusted pH value into the filter 3 through the water inlet pump 2. The filter 3 is set to filter the suspended matter in the organic wastewater. The filtered organic wastewater enters the hydrodynamic cavitation device 4. The hydrodynamic cavitation device 4 is set to generate high temperature and high pressure, so that the organic wastewater and ozone form a gas-liquid mixture, and the organic pollutants are initially degraded. Subsequently, the organic wastewater first enters the primary reaction tower 5, and the AC motor 6 is started to drive the rotating tube 7 to rotate. At the same time Ozone enters the rotating tube 7 through the air inlet pipe 8, and then enters the connecting tube 9 through the rotating tube 7. At the same time, due to the rotation of the rotating tube 7 and the connecting tube 9, the centrifugal force generated offsets the pressure of the sewage, which can greatly reduce the pressure when the ozone is injected into the sewage, and facilitate the injection of ozone; at the same time, the sewage is quickly stirred evenly, and then the organic wastewater treated by the primary reaction tower 5 enters the secondary reaction tower 10. The catalyst packing layer 11 in the secondary reaction tower 10 cooperates with the aeration disk 12 to treat the organic wastewater. The setting of the aeration disk 12 is that aeration micropores are provided on the aeration disk 12, and the aperture of the aeration micropores is 0.2-100μm. The aeration effect of the aeration micropores generates micro-nano bubbles with a diameter of 5-20 μm, and a milky gas-liquid mixture is obtained, so that ozone is fully in contact with the wastewater, a good mass transfer effect is obtained, and the rising rate of the bubbles in the water is reduced. At the same time, the setting of the catalyst filler layer 11 can selectively select one or more layers, and then the treated water in the secondary reaction tower 10 is guided to the inside of the water production tank 17 through the water outlet pump 13. During the above operation, the ozone generator 16 is used to convert the oxygen output from the oxygen tank 15 into ozone, and then the ozone is injected into the primary reaction tower 5, the secondary reaction tower 10 and the hydrodynamic cavitation device 4. Finally, the remaining ozone is treated by the ozone tail gas destroyer 14.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ozone catalytic oxidation treatment system for organic wastewater, comprising a raw water tank (1), characterized in that: A water inlet pump (2) is arranged outside the raw water tank (1), the output end of the raw water tank (1) is fixedly connected to the input end of the water inlet pump (2), and a processing component (19) is arranged outside the raw water tank (1); The processing assembly (19) comprises a primary reaction tower (5), an AC motor (6), a rotating tube (7), an air intake pipe (8), a connecting tube (9) and a secondary reaction tower (10); the AC motor (6) is fixedly arranged on the lower end surface of the primary reaction tower (5); the air intake pipe (8) is arranged on the upper end surface of the primary reaction tower (5); a rotating tube (7) is arranged inside the primary reaction tower (5); a plurality of connecting tubes (9) are fixedly connected to the outer wall of the rotating tube (7); the upper end surface of the rotating tube (7) is fixedly connected to the air intake pipe (8); the rotating tube (7), the air intake pipe (8) and the connecting tube (9) are interconnected; the other end of the connecting tube (9) is opened; and a catalyst packing layer (11) is arranged inside the secondary reaction tower (10).

2. The ozone catalytic oxidation treatment system for organic wastewater according to claim 1 is characterized in that: An oxygen tank (15) is arranged outside the raw water tank (1), and an ozone generator (16) is arranged outside the oxygen tank (15). The output end of the oxygen tank (15) is fixedly connected to the input end of the ozone generator (16).

3. The ozone catalytic oxidation treatment system for organic wastewater according to claim 1 is characterized in that: A filter (3) is arranged on the outside of the water inlet pump (2), and a hydrodynamic cavitation device (4) is arranged on the outside of the filter (3). The output end of the water inlet pump (2) is fixedly connected to the input end of the filter (3), the output end of the filter (3) is fixedly connected to the input end of the hydrodynamic cavitation device (4), and the output end of the hydrodynamic cavitation device (4) is fixedly connected to the primary reaction tower (5).

4. The ozone catalytic oxidation treatment system for organic wastewater according to claim 2 is characterized in that: The output end of the ozone generator (16) is fixedly connected to the input ends of the primary reaction tower (5), the secondary reaction tower (10) and the hydrodynamic cavitation device (4), respectively; an aeration plate (12) is arranged at the upper end of the inner bottom wall of the secondary reaction tower (10); the primary reaction tower (5) and the secondary reaction tower (10) are connected via a pipeline; and a driving assembly (18) is arranged on the outer side of the secondary reaction tower (10).

5. The ozone catalytic oxidation treatment system for organic wastewater according to claim 4 is characterized in that: The driving assembly (18) comprises a water outlet pump (13) and a water inlet pump (2); the water inlet pump (2) and a water production tank (17) are arranged outside the secondary reaction tower (10); the output end of the secondary reaction tower (10) is fixedly connected to the input end of the water outlet pump (13); the output end of the water outlet pump (13) is fixedly connected to the water inlet end of the water production tank (17); an ozone tail gas destroyer (14) is arranged outside the secondary reaction tower (10); the output ends of the primary reaction tower (5) and the secondary reaction tower (10) are fixedly connected to the input end of the ozone tail gas destroyer (14).

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