Multi-stage ao biofilm wastewater treatment device

Abstract

The utility model relates to sewage treatment technical field, and disclose multistage AO biological membrane sewage treatment device, including sewage treatment tank, the inside of sewage treatment tank is sequentially separately provided with anaerobic tank, aerobic tank, biological membrane pool and disinfection tank, the inside of aerobic tank is provided with sun shape shunt tank, the utility model discloses a mobile mechanism is set up, can when sewage passes through aerobic tank, starts aerator, and the aerator will transmit air from transmission hose to the inside of sun shape shunt tank, then again by the air outlet pipe discharge forms the bubble in the sewage and floats, and simultaneously starts motor, and the motor will drive the draw bar, transmission disc and transmission rod rotate, and the transmission rod rotates, and its surface will extrude transmission groove inner wall, makes transmission block and sun shape shunt tank move to and fro left and right, and constantly changes the position of aeration, so that sewage can evenly absorb oxygen, and further improve the effect of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a multi-stage AO biofilm wastewater treatment device. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering.

[0003] A search revealed a multi-stage AO biofilm wastewater treatment device disclosed in Chinese patent literature [Announcement No.: CN214829759U]. This device includes an anaerobic sedimentation tank connected to an anaerobic digestion storage tank, which in turn is connected to a first aerobic biological reactor. The first aerobic biological reactor is connected to an organic matter anaerobic digestion tank, which is connected to a second aerobic biological reactor. The second aerobic biological reactor is connected to a sedimentation tank, which is connected to a return storage tank. The return storage tank is connected to a decolorization and disinfection storage tank, which is connected to an effluent storage tank. This invention, by setting up a multi-stage AO activated sludge reactor, combined with AO water treatment technology, a membrane bioreactor, and UV-O3 co-treatment, achieves efficient nitrogen and phosphorus removal and deep disinfection of wastewater, enabling wastewater reuse.

[0004] To improve wastewater treatment efficiency, existing wastewater treatment plants combine anaerobic tanks, aerobic tanks, biofilm tanks, and disinfection tanks to achieve multi-stage wastewater treatment. When wastewater passes through the aerobic tank, air is typically injected into the wastewater through aerators to increase the oxygen content and accelerate the decomposition of organic matter. However, the aeration positions are fixed during the aeration process, which can lead to uneven oxygen absorption by the wastewater, thus reducing the effectiveness of wastewater treatment. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage AO biofilm wastewater treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage AO biofilm wastewater treatment device, comprising a wastewater treatment tank, wherein an anaerobic tank, an aerobic tank, a biofilm tank, and a disinfection tank are sequentially arranged inside the wastewater treatment tank; a spherical diversion box is arranged inside the aerobic tank; a plurality of air outlet pipes are fixedly connected to the top of the spherical diversion box; an aerator is fixedly installed on one side of the wastewater treatment tank; a transmission hose is fixedly connected to the air outlet end of the aerator; one end of the transmission hose penetrates into the interior of the wastewater treatment tank and is fixedly connected to the top of the spherical diversion box.

[0007] A moving mechanism, which is fixedly mounted on the sewage treatment tank, is capable of controlling the reciprocating movement of the H-shaped diversion box;

[0008] A mixing mechanism is fixedly mounted on the moving mechanism.

[0009] Preferably, the moving mechanism includes a mounting frame fixedly installed on one side of the sewage treatment tank. A motor is fixedly installed on one side of the mounting frame. One end of the motor extends through one side of the mounting frame and is fixedly connected to a traction rod. One end of the traction rod extends through the interior of the aerobic tank and is fixedly connected to a transmission disc. A transmission rod is fixedly connected to one side of the transmission disc. A transmission block is sleeved on the surface of the transmission rod. The bottom of the transmission block is fixedly connected to the top of the H-shaped diversion box. A transmission groove is formed on one side of the transmission block to cooperate with the transmission rod.

[0010] Preferably, the mixing mechanism includes an agitator rod disposed inside the aerobic tank, a plurality of agitator blades being fixedly connected to the surface of the agitator rod, one side of the agitator rod extending to the outside of the wastewater treatment tank and being fixedly connected to a first pulley, and a second pulley being fixedly connected to the surface of the traction rod, the first pulley and the second pulley being connected by belt drive.

[0011] Preferably, a connecting hole is provided on one side of the sewage treatment tank for use with the traction rod and the stirring rod, and a sealing ring is fixedly connected to the inner wall of the connecting hole.

[0012] Preferably, a bearing seat is provided on one side of the stirring rod, and the bearing seat is rotatably connected to the inner wall of the aerobic tank.

[0013] Preferably, sliding blocks are fixedly connected to both sides of the sun-shaped diversion box, and the inner wall of the aerobic tank is provided with sliding grooves that cooperate with the sliding blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a moving mechanism, can start the aerator while the sewage is passing through the aerobic tank. The aerator will transmit air from the transmission hose to the inside of the H-shaped diversion box, and then discharge it through the air outlet pipe to form bubbles that float in the sewage. At the same time, the motor will start, which will drive the traction rod, transmission disc and transmission rod to rotate. As the transmission rod rotates, its surface will press against the inner wall of the transmission groove, causing the transmission block and the H-shaped diversion box to move back and forth left and right, constantly changing the aeration position, so that the sewage can absorb oxygen evenly, thereby improving the sewage treatment effect.

[0016] 2. This utility model, by setting up a mixing mechanism, can drive the second pulley to rotate while the traction rod rotates. The second pulley, in turn, drives the first pulley to rotate via a belt. The first pulley drives the stirring rod to rotate, and the stirring blades rotate synchronously around the bearing seat along with the stirring rod. As the bubbles rise, the stirring blades break them up, forming multiple smaller bubbles, increasing the contact area with the sewage. At the same time, the sewage is agitated, enabling it to absorb oxygen evenly and further improving the sewage treatment effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main section of this utility model;

[0019] Figure 3 This is a schematic diagram of the side section of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a perspective view of the moving mechanism and the hybrid mechanism in this utility model from the side.

[0022] Figure 6 This is a perspective view of a partial structure of the hybrid mechanism in this utility model.

[0023] In the diagram: 1. Wastewater treatment tank; 2. Anaerobic tank; 3. Aerobic tank; 4. Biofilm tank; 5. Disinfection tank; 6. Drainage box; 7. Air outlet pipe; 8. Aerator; 9. Transmission hose; 10. Mounting frame; 11. Motor; 12. Transmission rod; 13. Transmission disc; 14. Traction rod; 15. Transmission block; 16. Transmission groove; 17. Stirring rod; 18. Stirring blade; 19. First pulley; 20. Second pulley; 21. Connecting hole; 22. Sealing ring; 23. Bearing seat; 24. Sliding block; 25. Sliding groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 6 As shown,

[0026] Example 1:

[0027] A multi-stage AO biofilm wastewater treatment device includes a wastewater treatment tank 1. Inside the wastewater treatment tank 1, an anaerobic tank 2, an aerobic tank 3, a biofilm tank 4, and a disinfection tank 5 are arranged sequentially. Inside the aerobic tank 3, a spherical diversion box 6 is arranged. Several air outlet pipes 7 are fixedly connected to the top of the spherical diversion box 6. An aerator 8 is fixedly installed on one side of the wastewater treatment tank 1. The air outlet end of the aerator 8 is fixedly connected to a transmission hose 9. One end of the transmission hose 9 passes through the interior of the wastewater treatment tank 1 and is fixedly connected to the top of the spherical diversion box 6.

[0028] The moving mechanism is fixedly installed on the sewage treatment tank 1 and can control the reciprocating movement of the H-shaped diversion box 6;

[0029] The mixing mechanism is fixedly mounted on the moving mechanism.

[0030] The moving mechanism includes a mounting frame 10 fixedly installed on one side of the sewage treatment tank 1. A motor 11 is fixedly installed on one side of the mounting frame 10. One end of the motor 11 extends through to one side of the mounting frame 10 and is fixedly connected to a traction rod 14. One end of the traction rod 14 extends through the interior of the aerobic tank 3 and is fixedly connected to a transmission disc 13. A transmission rod 12 is fixedly connected to one side of the transmission disc 13. A transmission block 15 is sleeved on the surface of the transmission rod 12. The bottom of the transmission block 15 is fixedly connected to the top of the H-shaped diversion box 6. A transmission groove 16 is opened on one side of the transmission block 15 to cooperate with the transmission rod 12.

[0031] In this embodiment, when sewage passes through the aerobic tank 3, air is usually injected into the sewage through an aerator to increase the oxygen content and accelerate the decomposition of organic matter. However, the aeration position is fixed during the aeration process, which will cause the sewage to not absorb oxygen evenly, thus reducing the sewage treatment effect. Therefore, by setting a moving mechanism, the aerator 8 can be started when the sewage passes through the aerobic tank 3. The aerator 8 will transmit air from the transmission hose 9 to the inside of the H-shaped diversion box 6, and then discharge it through the air outlet pipe 7 to form bubbles that float in the sewage. At the same time, the motor 11 is started. The motor 11 will drive the traction rod 14, the transmission disc 13 and the transmission rod 12 to rotate. When the transmission rod 12 rotates, its surface will press against the inner wall of the transmission groove 16, causing the transmission block 15 and the H-shaped diversion box 6 to move back and forth left and right, constantly changing the aeration position, so that the sewage can absorb oxygen evenly, thereby improving the sewage treatment effect.

[0032] It should be noted that the transmission hose 9 is flexible and can be stretched, and will not be damaged by the reciprocating movement of the H-shaped distribution box 6.

[0033] Both sides of the Japanese-shaped diversion box 6 are fixedly connected with sliding blocks 24, and the inner wall of the aerobic tank 3 is provided with sliding grooves 25 that cooperate with the sliding blocks 24.

[0034] In this embodiment, by setting the sliding block 24 and the sliding groove 25, when the transmission rod 12 contacts the inner wall of the transmission groove 16 during rotation, the transmission block 15 and the H-shaped diverter box 6 and other structures can only move along the trajectory of the sliding block 24 and the sliding groove 25 under the action of compression, thus playing the role of limiting the movement trajectory.

[0035] Example 2:

[0036] Based on Embodiment 1, in this embodiment, the moving mechanism can control the reciprocating movement of the sun-shaped diversion box 6, thereby continuously changing the aeration position and increasing the oxygen content in the sewage. However, considering that after air is injected into the aerobic tank 3, bubbles will form in the sewage and rise quickly, resulting in the oxygen in the air not being fully mixed with the sewage, the mixing mechanism in this application includes a stirring rod 17 disposed inside the aerobic tank 3. Several stirring blades 18 are fixedly connected to the surface of the stirring rod 17. One side of the stirring rod 17 extends through to the outside of the sewage treatment tank 1 and is fixedly connected to a first pulley 19. A second pulley 20 is fixedly connected to the surface of the traction rod 14. The first pulley 19 and the second pulley 20 are connected by belt drive.

[0037] In this embodiment, by setting up a mixing mechanism, the second pulley 20 can be driven to rotate while the traction rod 14 rotates. The second pulley 20 will then drive the first pulley 19 to rotate via a belt. The first pulley 19 will drive the stirring rod 17 to rotate. The stirring blade 18 will rotate synchronously around the bearing seat 23 along with the stirring rod 17. As the bubbles rise, the stirring blade 18 will break them up, making them into multiple small bubbles, increasing the contact area with the sewage. At the same time, the sewage will be agitated, enabling the sewage to absorb oxygen evenly and further improving the sewage treatment effect.

[0038] A connecting hole 21 is provided on one side of the sewage treatment tank 1 for use with the traction rod 14 and the stirring rod 17. A sealing ring 22 is fixedly connected to the inner wall of the connecting hole 21.

[0039] In this embodiment, by setting the connecting hole 21 and the sealing ring 22, the traction rod 14 and the stirring rod 17 can be provided with movement space to enter the aerobic tank 3. At the same time, the design of the sealing ring 22 can prevent sewage from leaking from the connecting hole 21.

[0040] A bearing seat 23 is provided on one side of the stirring rod 17, and it is rotatably connected to the inner wall of the aerobic tank 3 through the bearing seat 23.

[0041] In this embodiment, by setting the bearing seat 23, the stirring rod 17 can be supported, and the stirring rod 17 can only rotate around the bearing seat 23, thereby improving the smoothness of its rotation process.

[0042] Working principle: When sewage passes through aerobic tank 3, aerator 8 is started. Aerator 8 transmits air from transmission hose 9 to the inside of the H-shaped diversion box 6, and then discharges it through air outlet pipe 7 to form bubbles that float in the sewage. At the same time, motor 11 is started. Motor 11 drives traction rod 14, transmission disc 13 and transmission rod 12 to rotate. As transmission rod 12 rotates, its surface will press against the inner wall of transmission groove 16, causing transmission block 15 and H-shaped diversion box 6 to move back and forth left and right, constantly changing the aeration position, so that sewage can absorb oxygen evenly, thereby improving the sewage treatment effect.

[0043] As the traction rod 14 rotates, it drives the second pulley 20 to rotate. The second pulley 20 then drives the first pulley 19 to rotate via a belt. The first pulley 19 drives the agitator 17 to rotate, and the agitator blade 18 rotates synchronously around the bearing seat 23 along with the agitator 17. As the bubbles rise, the agitator blade 18 breaks them down into smaller bubbles, increasing the contact area with the wastewater. At the same time, it agitates the wastewater, enabling it to absorb oxygen evenly and further improving the wastewater treatment effect.

[0044] It should be noted that the aerator 8 and the motor 11 are existing devices or equipment, or devices or equipment that can be implemented by existing technology, and the specific composition and principle of the power supply of the aerator 8 and the motor 11 are clear to those skilled in the art, so they will not be described in detail here.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage AO biofilm wastewater treatment device, comprising a wastewater treatment tank (1), wherein the wastewater treatment tank (1) is provided with an anaerobic tank (2), an aerobic tank (3), a biofilm tank (4), and a disinfection tank (5) in sequence, characterized in that: The aerobic tank (3) is equipped with a sun-shaped diversion box (6) inside. Several air outlet pipes (7) are fixedly connected to the top of the sun-shaped diversion box (6). An aerator (8) is fixedly installed on one side of the sewage treatment tank (1). A transmission hose (9) is fixedly connected to the air outlet end of the aerator (8). One end of the transmission hose (9) penetrates into the interior of the sewage treatment tank (1) and is fixedly connected to the top of the sun-shaped diversion box (6). The moving mechanism is fixedly installed on the sewage treatment tank (1) and can control the reciprocating movement of the sun-shaped diversion box (6); A mixing mechanism is fixedly mounted on the moving mechanism.

2. The multi-stage AO biofilm wastewater treatment device according to claim 1, characterized in that: The moving mechanism includes a mounting frame (10) fixedly installed on one side of the sewage treatment tank (1). A motor (11) is fixedly installed on one side of the mounting frame (10). One end of the motor (11) extends through to one side of the mounting frame (10) and is fixedly connected to a traction rod (14). One end of the traction rod (14) extends through the interior of the aerobic tank (3) and is fixedly connected to a transmission disc (13). A transmission rod (12) is fixedly connected to one side of the transmission disc (13). A transmission block (15) is sleeved on the surface of the transmission rod (12). The bottom of the transmission block (15) is fixedly connected to the top of the sun-shaped diversion box (6). A transmission groove (16) is opened on one side of the transmission block (15) to cooperate with the transmission rod (12).

3. The multi-stage AO biofilm wastewater treatment device according to claim 2, characterized in that: The mixing mechanism includes an agitator (17) disposed inside the aerobic tank (3). Several agitator blades (18) are fixedly connected to the surface of the agitator (17). One side of the agitator (17) extends to the outside of the sewage treatment tank (1) and is fixedly connected to a first pulley (19). A second pulley (20) is fixedly connected to the surface of the traction rod (14). The first pulley (19) and the second pulley (20) are connected by belt drive.

4. The multi-stage AO biofilm wastewater treatment device according to claim 3, characterized in that: The sewage treatment tank (1) has a connecting hole (21) on one side for use with the traction rod (14) and the stirring rod (17), and a sealing ring (22) is fixedly connected to the inner wall of the connecting hole (21).

5. The multi-stage AO biofilm wastewater treatment device according to claim 3, characterized in that: The agitator (17) is provided with a bearing seat (23) on one side, and is rotatably connected to the inner wall of the aerobic tank (3) through the bearing seat (23).

6. The multi-stage AO biofilm wastewater treatment device according to claim 2, characterized in that: Both sides of the sun-shaped diversion box (6) are fixedly connected with sliding blocks (24), and the inner wall of the aerobic tank (3) is provided with sliding grooves (25) that cooperate with the sliding blocks (24).

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