Sewage dephosphorization and denitrification reaction device

Abstract

The utility model discloses a sewage dephosphorization and denitrification reaction device which comprises a sewage pipe, an anaerobic tank is fixedly mounted on one side of the sewage pipe, an anoxic tank is arranged on one side of the anaerobic tank, an aerobic tank is arranged on one side of the anoxic tank, a treatment cavity and an equipment bottom cavity are formed in the aerobic tank, and a sewage outlet is formed in the equipment bottom cavity. A partition plate is fixedly mounted in the aerobic tank along the position between the treatment cavity and the equipment bottom cavity, a plurality of jet heads are fixedly mounted above the partition plate, a dispersion rod is rotatably mounted in the treatment cavity of the aerobic tank, and a plurality of groups of dispersion blades and a plurality of groups of crushing cutters are fixedly mounted on the outer side of the dispersion rod; and each group of crushing cutters is arranged between two adjacent groups of dispersing blades. The air dispersing capacity is achieved, practicability is improved, and therefore the problems that in the aerobic treatment process of sewage phosphorus and nitrogen removal, air cannot be rapidly mixed with sewage, dispersion of oxygen in the sewage is not facilitated, and the requirement of aerobic microorganisms for oxygen is difficult to fully meet are solved.

Description

Technical Field

[0001] This utility model relates to the field of reaction device technology, specifically a wastewater phosphorus and nitrogen removal reaction device. Background Technology

[0002] Wastewater usually comes from domestic sewage and industrial wastewater. Excessive nitrogen and phosphorus can cause eutrophication of water bodies, leading to algal blooms, water quality deterioration, and ecosystem damage. Phosphorus and nitrogen removal treatment is required to remove nitrogen, phosphorus, and organic matter, and finally meet the discharge standards to protect the water environment.

[0003] For example, the authorized patent with announcement number CN 208917010 U (a high-efficiency nitrogen and phosphorus removal wastewater treatment device) includes an anaerobic tank, an aerobic tank and a sedimentation tank. An aerobic tank is fixedly connected to one side of the anaerobic tank, and a sedimentation tank is fixedly connected to one side of the aerobic tank. An aerobic packing roller is fixedly installed in the inner cavity of the aerobic tank, and an aeration pipe is fixedly installed at the bottom of the inner wall of the aerobic tank.

[0004] While the existing technology described above uses phosphorus removal chemicals that permeate into the aerobic tank through a permeation pipe to promote phosphorus removal, it relies on a blower to deliver air into the aerobic tank. Lacking a breaking structure, this prevents the air from mixing quickly with the wastewater during the aerobic treatment process for phosphorus and nitrogen removal. This hinders oxygen dispersion in the wastewater, making it difficult to fully meet the oxygen requirements of aerobic microorganisms and affecting wastewater treatment efficiency. Therefore, there is an urgent market need to develop a wastewater phosphorus and nitrogen removal reactor to help solve these existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater phosphorus and nitrogen removal reaction device to solve the problem mentioned in the background art that in the aerobic treatment process of wastewater phosphorus and nitrogen removal, air cannot be quickly mixed with wastewater, which is not conducive to the dispersion of oxygen in wastewater, making it difficult to fully meet the oxygen demand of aerobic microorganisms and affecting the wastewater treatment efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater phosphorus and nitrogen removal reaction device, comprising a wastewater pipe, an anaerobic tank fixedly installed on one side of the wastewater pipe, an anoxic tank arranged on one side of the anaerobic tank, an aerobic tank arranged on one side of the anoxic tank, a treatment chamber and a bottom chamber of the equipment arranged inside the aerobic tank, a partition plate fixedly installed inside the aerobic tank along the distance between the treatment chamber and the bottom chamber of the equipment, multiple jet nozzles fixedly installed above the partition plate, a dispersing rod rotatably installed inside the treatment chamber of the aerobic tank, and multiple sets of dispersing blades and multiple sets of crushing blades fixedly installed on the outer side of the dispersing rod, with each set of crushing blades arranged between two adjacent sets of dispersing blades.

[0007] Preferably, an air pump is fixedly installed inside the bottom cavity of the aerobic tank, an air supply pipe is fixedly installed on one side of the air pump, and multiple diversion pipes are fixedly installed above the air supply pipe. The multiple diversion pipes are respectively connected to multiple jet heads in the same number and corresponding positions. The upper end of the diversion pipe passes through a partition and is fixedly connected to the jet head. An inspection cover is fixedly installed at the front end of the aerobic tank.

[0008] Preferably, an air inlet box is fixedly installed on one side of the aerobic tank, and the air inlet box is connected to the bottom cavity of the aerobic tank. A grid plate is fixedly installed on the upper end of the air inlet box, and a door is rotatably installed on the front end of the air inlet box. A filter tank is provided inside the air inlet box, and a dust filter plate is fixedly installed on one side of the filter tank.

[0009] Preferably, an oxygen sensor 2 is fixedly installed on one side of the treatment chamber of the aerobic tank, a motor cover 2 is fixedly installed above the aerobic tank, a motor 2 is installed inside the motor cover 2, the output end of the motor 2 is fixedly connected to the dispersing rod, and a feeding pipe 2 is fixedly installed above the aerobic tank.

[0010] Preferably, the anaerobic tank and the anoxic tank have the same internal structure. A stirring rod is rotatably installed inside the anaerobic tank, and multiple sets of stirring blades are fixedly installed on the outside of the stirring rod. A motor cover is fixedly installed above the anaerobic tank, and a motor is installed inside the motor cover. The output end of the motor is fixedly connected to the stirring rod.

[0011] Preferably, an oxygen sensor is fixedly installed on one side inside the anaerobic tank, and a feeding pipe is fixedly installed above the anaerobic tank.

[0012] Preferably, submersible pumps are fixedly installed inside the anaerobic tank, anoxic tank, and aerobic tank, and water delivery pipes are fixedly installed above the submersible pumps.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets up a dispersing rod in the aerobic tank and fixes multiple sets of dispersing blades and multiple sets of crushing blades on the outside of the dispersing rod. When air is sprayed out from the jet nozzle to form bubbles, the dispersing rod rotates and drives the crushing blades to break the bubbles, so that oxygen is quickly and evenly dispersed in the sewage, fully meeting the oxygen demand of aerobic microorganisms, thereby improving the activity of aerobic microorganisms, accelerating the rate of organic matter decomposition and ammonia nitrogen nitrification, and effectively improving the treatment efficiency of phosphorus and nitrogen removal in sewage.

[0015] (2) By setting up an air inlet box and a filter tank inside the air inlet box, and a dust filter plate is fixedly installed on one side of the filter tank, the dust filter plate can effectively filter the dust and impurities in the air when the air passes through the air inlet box, preventing the dust and impurities from entering the air pump and aerobic tank, thus ensuring the cleanliness of the air.

[0016] (3) The present invention has the same internal structure for the anaerobic tank and the anoxic tank, and both are equipped with stirring rods and stirring blades. By driving the stirring rods and stirring blades in the anaerobic tank and the anoxic tank to rotate respectively, the sewage in the anaerobic tank and the anoxic tank can be fully stirred, so that the microorganisms in the sewage can fully contact the pollutants and improve the reaction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a wastewater phosphorus and nitrogen removal reaction device according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the anaerobic tank of this utility model;

[0019] Figure 3 This is a cross-sectional view of the aerobic tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the filter tank of this utility model.

[0021] In the diagram: 1. Sewage pipe; 2. Anaerobic tank; 3. Anoxic tank; 4. Aerobic tank; 5. Inspection cover; 6. Air inlet box; 7. Grating plate; 8. Motor cover one; 9. Motor one; 10. Feeding pipe one; 11. Stirring rod; 12. Stirring blade; 13. Oxygen sensor one; 14. Submersible pump; 15. Water supply pipe; 16. Motor cover two; 17. Motor two; 18. Feeding pipe two; 19. Dispersing rod; 20. Dispersing blade; 21. Crusher; 22. Oxygen sensor two; 23. Baffle plate; 24. Air pump; 25. Air supply pipe; 26. Diverter pipe; 27. Jet nozzle; 28. Filter tank; 29. ​​Dust filter plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4An embodiment of this utility model provides a wastewater phosphorus and nitrogen removal reaction device, including a wastewater pipe 1, an anaerobic tank 2 fixedly installed on one side of the wastewater pipe 1, an anoxic tank 3 set on one side of the anaerobic tank 2, and an aerobic tank 4 set on one side of the anoxic tank 3. The aerobic tank 4 has a treatment chamber and a bottom chamber inside. A partition 23 is fixedly installed inside the aerobic tank 4 between the treatment chamber and the bottom chamber. Multiple jet nozzles 27 are fixedly installed above the partition 23. A dispersing rod 19 is rotatably installed inside the treatment chamber of the aerobic tank 4. Multiple sets of dispersing blades 20 and multiple sets of crushing blades 21 are fixedly installed on the outer side of the dispersing rod 19, and each set of crushing blades 21 is arranged between two adjacent sets of dispersing blades 20.

[0024] When air is supplied to the aerobic tank 4, the air is ejected from the jet nozzle to form bubbles. The dispersing rod 19 rotates, driving the crushing blade 21 to break the bubbles, breaking large bubbles into smaller ones. The smaller bubbles have a larger specific surface area, which increases the contact area between oxygen and wastewater. At the same time, the dispersing blades can agitate the wastewater, allowing oxygen to be quickly and evenly dispersed in the wastewater, fully meeting the oxygen requirements of aerobic microorganisms. This, in turn, improves the activity of aerobic microorganisms, accelerates the rate of organic matter decomposition and ammonia nitrification reactions, improves the treatment efficiency of wastewater phosphorus and nitrogen removal, and increases practicality.

[0025] Please see Figure 1 and Figure 3 An air pump 24 is fixedly installed inside the bottom cavity of the aerobic tank 4. An air supply pipe 25 is fixedly installed on one side of the air pump 24. Multiple diversion pipes 26 are fixedly installed above the air supply pipe 25. The multiple diversion pipes 26 are the same number and corresponding in position as multiple jet heads 27. The upper end of the diversion pipe 26 passes through the partition 23 and is fixedly connected to the jet head 27. A check valve is installed at the connection between the jet head 27 and the diversion pipe 26. An inspection cover 5 is fixedly installed at the front end of the aerobic tank 4. The inspection cover 5 is located at the front end of the bottom cavity of the equipment.

[0026] This allows the air generated by the air pump 24 to be delivered to each jet nozzle 27 through the air supply pipe 25 and the diversion pipe 26, ensuring that the air is distributed to different areas of the aerobic tank 4 treatment chamber, which is conducive to a more uniform distribution of oxygen in the sewage and increases its practicality.

[0027] Please see Figure 1 and Figure 4 An air inlet box 6 is fixedly installed on one side of the aerobic tank 4, and the air inlet box 6 is connected to the bottom cavity of the aerobic tank 4. A grid plate 7 is fixedly installed on the upper end of the air inlet box 6, and a door is rotatably installed on the front end of the air inlet box 6. A filter tank 28 is provided inside the air inlet box 6, and a dust filter plate 29 is fixedly installed on one side of the filter tank 28.

[0028] The grating plate 7 can block larger debris from entering the air inlet box 6, while the dust filter plate 29 can effectively filter dust and impurities in the air, preventing dust and impurities from entering the air pump and aerobic tank 4, ensuring air cleanliness, providing a better oxygen source for aerobic microorganisms, and improving the stability and reliability of sewage treatment.

[0029] Please see Figure 3 An oxygen sensor 22 is fixedly installed on one side of the treatment chamber inside the aerobic tank 4. The oxygen sensor 22 is the probe of a JPSJ-605F dissolved oxygen analyzer and is connected to the dissolved oxygen analyzer. A motor cover 16 is fixedly installed above the aerobic tank 4. A motor 17 is installed inside the motor cover 16. The output end of the motor 17 is fixedly connected to the dispersing rod 19. A feeding pipe 18 is fixedly installed above the aerobic tank 4.

[0030] The oxygen sensor 22 is installed to facilitate monitoring of the oxygen concentration in the aerobic tank 4. The motor 17 provides power for the rotation of the dispersing rod 19. The feeding pipe 18 is installed to facilitate the addition of chemical agents or other additives required for phosphorus and nitrogen removal into the aerobic tank 4.

[0031] Please see Figure 2 Anaerobic tank 2 and anoxic tank 3 have the same internal structure. An agitator 11 is rotatably installed inside anaerobic tank 2. Multiple sets of agitator blades 12 are fixedly installed on the outside of the agitator 11. A motor cover 8 is fixedly installed above anaerobic tank 2. A motor 9 is installed inside the motor cover 8. The output end of the motor 9 is fixedly connected to the agitator 11.

[0032] The motor 9 of anaerobic tank 2 and anoxic tank 3 drives the stirring rod 11 and stirring blade 12 to rotate, which can fully agitate the sewage in anaerobic tank 2 and anoxic tank 3, so that the microorganisms in the sewage can fully contact the pollutants, improve the reaction efficiency. In anaerobic tank 2, agitation can promote the anaerobic fermentation of organic matter and the release of phosphorus by microorganisms. In anoxic tank 3, agitation helps denitrifying bacteria reduce nitrate nitrogen to nitrogen gas, which improves the activity of microorganisms and treatment efficiency, and ensures the smooth progress of the sewage phosphorus and nitrogen removal process.

[0033] Please see Figure 2 An oxygen sensor 13 is fixedly installed on one side inside the anaerobic tank 2. The oxygen sensor 13 is the probe of a JPSJ-605F dissolved oxygen analyzer and is connected to an external dissolved oxygen analyzer. A feeding pipe 10 is fixedly installed above the anaerobic tank 2. A plug is installed inside the feeding pipe 10 to prevent air from flowing in.

[0034] The installation of oxygen sensor 13 facilitates the monitoring of oxygen concentration in anaerobic tank 2 and anoxic tank 3, which is beneficial for phosphorus and nitrogen removal in wastewater. The installation of feed pipe 10 facilitates the addition of conditioning agents to anaerobic tank 2 and anoxic tank 3 to meet wastewater treatment needs, thus increasing practicality.

[0035] Please see Figure 2 and Figure 3 Submersible pumps 14 are fixedly installed inside the anaerobic tank 2, the anoxic tank 3, and the aerobic tank 4. A water supply pipe 15 is fixedly installed above the submersible pump 14. One end of the water supply pipe 15 above the submersible pump 14 inside the anaerobic tank 2 extends into the anoxic tank 3, and the other end of the water supply pipe 15 above the submersible pump 14 inside the anoxic tank 3 extends into the aerobic tank 4.

[0036] The submersible pump 14 can transport sewage from one tank to the next, enabling continuous flow and treatment of sewage between different treatment tanks, thus increasing its practicality.

[0037] Working principle: During operation, wastewater first enters the anaerobic tank 2 through the wastewater pipe 1. Under the action of the stirring rod 11 and blades driven by motor 9, it is fully mixed, promoting the release of phosphorus by polyphosphate-accumulating bacteria and the decomposition of organic matter. Then, it is transported to the anoxic tank 3 by the submersible pump 14. Under the action of stirring, denitrification is achieved. Finally, it enters the aerobic tank 4. The air pump 24 is started. Outside air is filtered in the air inlet box 6 and distributed to each jet nozzle 27 through the diversion pipe 26. The dispersing rod 19 driven by motor 17 drives the crushing blade 21 to refine the air bubbles. With the rotation of the dispersing blades 20, oxygen is quickly and evenly dispersed in the wastewater. Thus, through the coordinated work of each tank, the removal of phosphorus and nitrogen from the wastewater is achieved.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wastewater phosphorus and nitrogen removal reaction device, comprising a wastewater pipe (1), characterized in that: An anaerobic tank (2) is fixedly installed on one side of the sewage pipe (1). An anoxic tank (3) is set on one side of the anaerobic tank (2). An aerobic tank (4) is set on one side of the anoxic tank (3). A treatment chamber and a bottom chamber of the equipment are set inside the aerobic tank (4). A partition (23) is fixedly installed inside the aerobic tank (4) along the distance between the treatment chamber and the bottom chamber of the equipment. Multiple jet nozzles (27) are fixedly installed above the partition (23). A dispersing rod (19) is rotatably installed inside the treatment chamber of the aerobic tank (4). Multiple sets of dispersing blades (20) and multiple sets of crushing blades (21) are fixedly installed on the outer side of the dispersing rod (19). Each set of crushing blades (21) is set between two adjacent sets of dispersing blades (20).

2. The wastewater phosphorus and nitrogen removal reaction device according to claim 1, characterized in that: An air pump (24) is fixedly installed inside the bottom cavity of the aerobic tank (4). An air supply pipe (25) is fixedly installed on one side of the air pump (24). Multiple diversion pipes (26) are fixedly installed above the air supply pipe (25). The multiple diversion pipes (26) are the same number and corresponding to multiple jet heads (27). The upper end of the diversion pipe (26) passes through the partition (23) and is fixedly connected to the jet head (27). An inspection cover (5) is fixedly installed at the front end of the aerobic tank (4).

3. The wastewater phosphorus and nitrogen removal reaction device according to claim 1, characterized in that: An air inlet box (6) is fixedly installed on one side of the aerobic tank (4), and the air inlet box (6) is connected to the bottom cavity of the aerobic tank (4). A grid plate (7) is fixedly installed on the upper end of the air inlet box (6), and a door is rotatably installed on the front end of the air inlet box (6). A filter tank (28) is provided inside the air inlet box (6), and a dust filter plate (29) is fixedly installed on one side of the filter tank (28).

4. The wastewater phosphorus and nitrogen removal reaction device according to claim 1, characterized in that: An oxygen sensor (22) is fixedly installed on one side of the processing chamber of the aerobic tank (4). A motor cover (16) is fixedly installed above the aerobic tank (4). A motor (17) is installed inside the motor cover (16). The output end of the motor (17) is fixedly connected to the dispersing rod (19). A feeding pipe (18) is fixedly installed above the aerobic tank (4).

5. The wastewater phosphorus and nitrogen removal reaction device according to claim 1, characterized in that: The internal structure of the anaerobic tank (2) and the anoxic tank (3) is the same. The anaerobic tank (2) is equipped with a stirring rod (11) that rotates inside. Multiple sets of stirring blades (12) are fixedly installed on the outside of the stirring rod (11). A motor cover (8) is fixedly installed above the anaerobic tank (2). A motor (9) is installed inside the motor cover (8). The output end of the motor (9) is fixedly connected to the stirring rod (11).

6. The wastewater phosphorus and nitrogen removal reaction device according to claim 5, characterized in that: An oxygen sensor (13) is fixedly installed on one side inside the anaerobic tank (2), and a feeding pipe (10) is fixedly installed above the anaerobic tank (2).

7. The wastewater phosphorus and nitrogen removal reaction device according to claim 6, characterized in that: Submersible pumps (14) are fixedly installed inside the anaerobic pool (2), the anoxic pool (3) and the aerobic pool (4), and water pipes (15) are fixedly installed above the submersible pumps (14).

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