A water treatment device and treatment method of MABR membrane aeration bioreactor

Abstract

The present invention discloses a water treatment device of an MABR membrane aeration bioreactor and a treatment method thereof, which relate to the field of sewage treatment. The water treatment device comprises a vertical frame body, wherein oxygen permeable membranes are uniformly arranged inside the vertical frame body, and connecting pipes are arranged at both front and rear ends of the oxygen permeable membrane. A delivery pipe is fixedly connected to the surface of the connecting pipe at the rear end, and the connecting pipe is used to deliver oxygen to the oxygen permeable membrane. The connecting pipe is connected to the vertical frame body through a motion component. Through the dual-mode switching of the motion component, the oxygen permeable membrane is driven to perform cyclic twisting and swinging, thereby enhancing the contact between the surface of the oxygen permeable membrane and the microbial biofilm, improving the oxygen utilization rate, dynamically adjusting the motion state of the membrane, and enhancing the self-cleaning ability of the membrane. The acceleration mechanism continuously swings at the bottom of the oxygen permeable membrane, accelerating the contact between the oxygen permeable membrane and pollutants in water, while digesting the sludge deposited on the outer surface of the oxygen permeable membrane.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a water treatment device of a MABR membrane aeration bioreactor and a treatment method thereof. Background Art

[0002] With the acceleration of industrialization and urbanization, water pollution is becoming increasingly serious, and the continuous improvement of sewage treatment technology has become an important direction for environmental protection. Traditional biological treatment processes, such as activated sludge and biofilters, play an important role in sewage purification, but they have shortcomings such as high energy consumption, large footprint, and limited denitrification efficiency. In recent years, the combination of membrane technology and biological treatment technology has provided new solutions for sewage treatment. The MABR membrane aeration biofilm reactor is a new water treatment technology that uses an oxygen-permeable membrane as a microbial carrier and provides bubble-free transport of microorganisms to the surface biofilm. Oxygen within the membrane fibers enters the biofilm on the surface of the oxygen-permeable membrane driven by concentration differences, creating an aerobic and anoxic environment on the surface of the membrane from the inside out. This allows for simultaneous nitrification and denitrification within the same reactor, achieving the goals of sewage denitrification, organic matter degradation, and phosphorus removal. By cleverly combining membrane technology, biological treatment technology, and aeration technology, it is a new sewage treatment technology with high treatment efficiency, low energy consumption, and low sludge production.

[0003] However, the existing MABR membrane aeration bioreactor water treatment device still has some room for improvement. In the traditional MABR system, although the surface of the oxygen permeable membrane is not as susceptible to pollutant adhesion as the MBR system, under long-term use in a highly polluted environment, since the breathable membrane itself is not in an active state, the membrane will still become clogged and hardened, affecting the oxygen transmission efficiency and reducing the overall performance of the reactor. The transmission of oxygen on the surface of the oxygen permeable membrane is blocked, especially when pollutants accumulate or the membrane is severely contaminated, resulting in a decrease in oxygen utilization, increased energy consumption, and uneven distribution of microorganisms in the reactor, making it difficult to form aerobic and anoxic areas simultaneously, affecting the nitrogen conversion efficiency. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a water treatment device of a MABR membrane aeration bioreactor and a treatment method thereof, which can effectively solve the problems of the prior art.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention discloses a water treatment device for an MABR membrane aeration bioreactor, comprising a vertical frame body, wherein oxygen permeable membranes are uniformly arranged inside the vertical frame body, the vertical frame body is hollow, and four delivery ports are uniformly fixedly connected at the top of the vertical frame body, a connecting pipe is provided at both the front and rear ends of the oxygen permeable membrane, and a delivery pipe is fixedly connected to the surface of the connecting pipe at the rear end, the connecting pipe is used to supply oxygen to the oxygen permeable membrane, the connecting pipe is connected to the vertical frame body through a motion component, the motion component is used to provide the oxygen permeable membrane with dual-mode switching of cyclic torsion and cyclic swing, and the oxygen permeable membrane is kept in a continuously active anti-hardening state during startup, and an acceleration mechanism is provided at the bottom end of the vertical frame body, the acceleration mechanism is used to synchronously spray upward water flow during the switching of the oxygen permeable membrane mode to accelerate the contact between the oxygen permeable membrane and pollutants, and synchronously flush the outer surface of the oxygen permeable membrane.

[0009] Furthermore, the top of each oxygen permeable membrane is connected to a second connecting pipe, and the bottom of each oxygen permeable membrane is connected to a third connecting pipe. Both the front and rear ends of each connecting pipe are connected to the vertical frame body.

[0010] Furthermore, both the front and rear ends of the connecting pipe 2 are fixedly connected with a corrugated hose, and one end of the corrugated hose is connected to the surface of the connecting pipe 1.

[0011] Furthermore, the moving component includes a support rod, and there are two support rods, which are respectively located on the left and right sides of the top of the vertical frame body. The top of the left support rod is fixedly connected to the shaft rod 2, and the top of the shaft rod 2 is rotatably connected to the shaft rod 1. The front and rear ends of the shaft rod 1 are rotatably connected to the connecting blocks, and the bottom ends of the connecting blocks are both fixedly connected to the top of the vertical frame body. The front end of the shaft rod 1 passes through the connecting block and is fixedly connected to the gear 1. The right end of the right support rod is rotatably connected to the connecting frame, and the top of the connecting frame is fixedly connected to the gear 2. The surface of the gear 2 is rotatably connected to the fixing frame, and one end of the fixing frame is fixedly connected to the inner wall of the vertical frame body.

[0012] Furthermore, both front and rear ends of the support rod are fixedly connected with adjustment balls, the surfaces of the adjustment balls are rotatably connected with ball seats, and one end of the ball seats is fixedly connected to one end of the connecting pipe.

[0013] Furthermore, the bottom end of the gear one is engaged with a tooth plate one, and an electric telescopic rod one is provided on the right side of the tooth plate one, and the electric telescopic rod one is installed on the front side of the top end of the vertical frame main body, and the output shaft at the left end of the electric telescopic rod one is fixedly connected to the right end of the tooth plate one, and the back side of the gear two is engaged with a tooth plate two, and an electric telescopic rod two is provided on the right side of the tooth plate two, and the bottom end of the electric telescopic rod two is installed on the right side of the top end of the vertical frame main body, and the output shaft at the left end of the electric telescopic rod two is fixedly connected to the right end of the tooth plate two.

[0014] Furthermore, the acceleration mechanism includes a conveying rack, which is located inside the vertical frame body, the top of the conveying rack is fixedly connected to the back side of the second tooth plate, the top of the conveying rack is fixedly connected to the second conveying pipe, the front and rear ends of the left side of the conveying rack are rotatably connected to the nozzle, one end of the nozzle is rotatably connected to the sliding rod, the right end of the sliding rod is rotatably connected to the support block, and the ends of the support blocks away from each other are fixedly connected to the inner wall of the vertical frame body.

[0015] Furthermore, the top ends of the nozzles are evenly fixedly connected with nozzles, and the nozzles are connected to the conveying rack.

[0016] In a second aspect, a treatment method for a MABR membrane aeration bioreactor is provided, comprising the following steps:

[0017] Step 1: Place the water treatment device into the sewage to be treated, allowing the sewage to fully flow through the reactor;

[0018] Step 2: Start the water treatment device. The delivery pipe will initially continuously deliver oxygen to the oxygen permeable membrane, forming an oxygen concentration driving force.

[0019] Step 3: The motion component switches the oxygen permeable membrane between cyclic twisting and cyclic swinging to activate the membrane and maintain its continuous active state. With sufficient oxygen supply and dynamic motion, an aerobic and anoxic environment is formed inside the water treatment device, promoting the simultaneous nitrification and denitrification processes.

[0020] Step 4: During the biological reaction of the oxygen permeable membrane, the acceleration mechanism at the bottom is activated to synchronously spray upward water into the water treatment device to accelerate the contact between the oxygen permeable membrane and the pollutants. The sprayed water also flushes the outer surface of the oxygen permeable membrane;

[0021] Step 5: After the predetermined reaction time, stop oxygen delivery and water injection, shut down the moving components, discharge the sludge and treated water, and clean and maintain the interior of the reactor.

[0022] Furthermore, the oxygen permeable membrane is a composite material imitating an artificial lung membrane, with a membrane pore size of <0.4nm, an inner and outer diameter of the membrane wire of 0.45-0.85mm, a tensile strength of the membrane wire of >50N, and an oxygen supply and permeability of >14kg / kW·h.

[0023] (3) Beneficial effects

[0024] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] 1. Through the dual-mode switching of the motion component, the oxygen permeable membrane is driven to perform cyclic twisting and swinging, thereby enhancing the contact between the oxygen on the surface of the membrane and the microbial biofilm, improving oxygen utilization, dynamically adjusting the motion state of the membrane, enhancing the self-cleaning ability of the membrane, reducing pollution accumulation, making the internal and external environments of the biofilm change dynamically, promoting the uniform distribution of microorganisms in different areas, optimizing the simultaneous progress of nitrification and denitrification, and maintaining the cleanliness and activity of the membrane through continuous adjustment of the motion component, extending the equipment operation cycle, and reducing maintenance frequency.

[0026] 2. The acceleration mechanism continuously swings at the bottom of the oxygen permeable membrane, and circulates synchronously with the start of the electric telescopic rod 2. During the cyclic swing of the oxygen permeable membrane, the nozzle continuously sprays water upward at the bottom of the oxygen permeable membrane through the nozzle, accelerating the contact between the oxygen permeable membrane and pollutants in the water, while digesting the sludge deposited on the outer surface of the oxygen permeable membrane, thereby accelerating the treatment speed of pollutants, and effectively removing pollutant deposition, further preventing hardening and pollution of the oxygen permeable membrane surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0029] Figure 2 Schematic diagram of the three-dimensional structure of the connecting pipe 1, the shaft 1, the gear 1 and the gear 2 in the present invention;

[0030] Figure 3 Schematic diagram of the three-dimensional structure of the conveying frame and the nozzle in the present invention;

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0032] Figure 5 A schematic diagram of the three-dimensional structure of the nozzle and the conveying frame in the present invention from another angle;

[0033] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the present invention from another angle;

[0034] Figure 7 Schematic diagram of the three-dimensional structure of the oxygen permeable membrane, the first delivery pipe, the first connecting pipe and the third connecting pipe in the present invention;

[0035] Figure 8It is a schematic diagram of the three-dimensional structure of the neutral frame body and the delivery port of the present invention.

[0036] The numbers in the figure represent, respectively, 1. frame body; 2. oxygen permeable membrane; 3. connecting pipe 1; 4. support rod; 5. shaft rod 1; 6. connecting block; 7. gear 1; 8. connecting frame; 9. gear 2; 10. fixing frame; 11. ball seat; 12. adjusting ball; 13. corrugated hose; 14. shaft rod 2; 15. tooth plate 1; 16. electric telescopic rod 1; 17. tooth plate 2; 18. electric telescopic rod 2; 19. delivery pipe 1; 20. delivery frame; 21. delivery pipe 2; 22. nozzle; 23. nozzle; 24. slide rod; 25. support block; 26. delivery port; 27. connecting pipe 2; 28. connecting pipe 3. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] The present invention will be further described below with reference to the embodiments.

[0039] Example 1

[0040] A water treatment device of a MABR membrane aeration bioreactor in this embodiment, such as Figures 1-8 As shown, it includes a vertical frame body 1, and a gas permeable membrane 2 is evenly arranged inside the vertical frame body 1. The top of the gas permeable membrane 2 is connected to a connecting pipe 2 27, and the bottom of the gas permeable membrane 2 is connected to a connecting pipe 3 28. The front and rear ends of the connecting pipe 3 28 are both connected to the vertical frame body 1. The front and rear ends of the connecting pipe 2 27 are fixedly connected to a corrugated hose 13, and one end of the corrugated hose 13 is connected to the surface of the connecting pipe 1 3. The vertical frame body 1 is hollow, and the top of the vertical frame body 1 is evenly fixedly connected to four delivery ports 26. The front and rear ends of the gas permeable membrane 2 are both provided with a connecting pipe 1 3, and the surface of the rear end connecting pipe 1 3 is fixedly connected to a delivery pipe 19. The connecting pipe 1 3 is used to deliver oxygen to the gas permeable membrane 2. The connecting pipe 1 3 is connected to the vertical frame body 1 through a motion component. The motion component is used to provide the gas permeable membrane 2 with dual-mode switching of cyclic torsion and cyclic swing, and the gas permeable membrane 2 is kept in a continuously active anti-hardening state during startup.

[0041] The moving parts include a support rod 4, there are two support rods 4, and the two support rods 4 are respectively located on the left and right sides of the top of the vertical frame body 1. The top of the left support rod 4 is fixedly connected to the shaft rod 2 14, and the top of the shaft rod 2 14 is rotatably connected to the shaft rod 1 5. The front and rear ends of the shaft rod 1 5 are rotatably connected to the connecting block 6, and the bottom ends of the connecting block 6 are both fixedly connected to the top of the vertical frame body 1. The front end of the shaft rod 1 5 passes through the connecting block 6 and is fixedly connected to the gear 1 7. The right end of the right support rod 4 is rotatably connected to the connecting frame 8, and the top of the connecting frame 8 is fixedly connected to the gear 2 9. The surface of the gear 2 9 is rotatably connected to the fixing frame 10. One end of the fixing frame 10 is fixedly connected to the inner wall of the vertical frame body 1. The front and rear ends of the support rod 4 are fixedly connected to the adjusting ball 12. The surface of the adjusting ball 12 is rotatably connected to the ball seat 11, and one end of the ball seat 11 is fixedly connected to one end of the connecting pipe 1 3.

[0042] The bottom end of gear 17 is engaged with a tooth plate 15, and an electric telescopic rod 16 is provided on the right side of the tooth plate 15. The electric telescopic rod 16 is installed on the front side of the top of the vertical frame body 1, and the output shaft at the left end of the electric telescopic rod 16 is fixedly connected to the right end of the tooth plate 15. The back side of gear 29 is engaged with a tooth plate 217, and an electric telescopic rod 218 is provided on the right side of the tooth plate 217. The bottom end of the electric telescopic rod 218 is installed on the right side of the top of the vertical frame body 1, and the output shaft at the left end of the electric telescopic rod 218 is fixedly connected to the right end of the tooth plate 217.

[0043] Compared with the existing technology, by realizing the cyclic twisting and swinging of the oxygen permeable membrane 2, the oxygen permeable membrane 2 can be effectively activated and cleaned under different motion states, thereby enhancing the oxygen transmission efficiency and preventing the hardening of the oxygen permeable membrane surface and the accumulation of pollutants, thereby improving the overall operating efficiency, stability and anti-clogging ability of the reactor, and significantly improving the sewage treatment effect and the durability of the equipment.

[0044] Example 2

[0045] This embodiment provides an acceleration mechanism. The bottom end of the frame body 1 is provided with an acceleration mechanism. The acceleration mechanism is used to synchronously spray upward water flow during the switching of the oxygen permeable membrane 2 to accelerate the contact between the oxygen permeable membrane 2 and the pollutants and simultaneously flush the outer surface of the oxygen permeable membrane 2.

[0046] The acceleration mechanism includes a conveying frame 20, which is located inside the vertical frame body 1. The top of the conveying frame 20 is fixedly connected to the back side of the tooth plate 2 17. The top of the conveying frame 20 is fixedly connected to the conveying pipe 21. The front and rear ends of the left side of the conveying frame 20 are rotatably connected to the nozzle 22. One end of the nozzle 22 is rotatably connected to the slide rod 24. The right end of the slide rod 24 is rotatably connected to the support block 25. The ends of the support blocks 25 that are away from each other are fixedly connected to the inner wall of the vertical frame body 1.

[0047] Compared with the existing technology, the combination of synchronous upward water jetting and dynamic movement significantly enhances the contact efficiency between the oxygen permeable membrane 2 and pollutants, improves the mass transfer rate of oxygen and nutrients, and effectively prevents biofilm hardening and clogging, thereby achieving higher reaction efficiency, more uniform pollutant distribution and lower energy consumption, and improving the stability and treatment effect of traditional reactors during operation.

[0048] Example 3

[0049] In this embodiment, a treatment method of a MABR membrane aeration bioreactor includes the following steps:

[0050] Step 1: Place the water treatment device into the sewage to be treated, allowing the sewage to fully flow through the reactor;

[0051] Step 2: Start the water treatment device. The delivery pipe 19 begins to continuously deliver oxygen to the oxygen permeable membrane 2, forming an oxygen concentration driving force. The oxygen permeable membrane 2 is a composite material imitating an artificial lung membrane, with a membrane pore size of <0.4nm, an inner and outer diameter of the membrane fiber of 0.45-0.85mm, a membrane fiber tensile strength of >50N, and an oxygen permeability of >14kg / kW·h;

[0052] Step 3: The motion component causes the oxygen permeable membrane 2 to switch between cyclic twisting and cyclic swinging modes to activate the oxygen permeable membrane 2 and maintain its continuous active state. With the combined effects of sufficient oxygen supply and dynamic motion, an aerobic and anoxic environment is formed inside the water treatment device, promoting the simultaneous progress of nitrification and denitrification processes.

[0053] Step 4: During the biological reaction of the oxygen permeable membrane 2, the acceleration mechanism at the bottom is activated to synchronously spray upward water into the water treatment device to accelerate the contact between the oxygen permeable membrane 2 and the pollutants. The sprayed water also flushes the outer surface of the oxygen permeable membrane 2;

[0054] Step 5: After the predetermined reaction time, stop oxygen delivery and water injection, shut down the moving components, discharge the sludge and treated water, and clean and maintain the interior of the reactor.

[0055] Working Principle: During the specific implementation of the present invention, the delivery pipe 19 is connected to the oxygen delivery device, and the delivery pipe 2 21 is connected to the water delivery device. The entire device is placed in the treatment tank. Oxygen is input from the delivery pipe 19 into the connecting pipe 1 3, and then transported to the oxygen permeable membrane 2 through the corrugated hose 13 and the connecting pipe 2 27. The oxygen permeable membrane 2 reacts and treats pollutants in the water. The treated water is then transported to the vertical frame body 1 through the connecting pipe 3 28 and finally discharged through the delivery port 26.

[0056] like Figure 1 and Figure 2As shown, when the electric telescopic rod 16 is started, the output shaft of the electric telescopic rod 16 drives the gear plate 15 to move back and forth, the gear plate 15 drives the gear 17 to rotate back and forth, the gear 17 drives the shaft rod 15 to rotate back and forth, the shaft rod 15 drives the shaft rod 2 14 to swing back and forth, the shaft rod 2 14 drives the left support rod 4 to swing, and the right support rod 4, supported by the connecting frame 8, is driven by the connecting pipe 1 3, so that the two support rods 4 swing synchronously, and then the connecting pipe 1 3 drives the oxygen permeable membrane 2 to swing back and forth through the corrugated hose 13, so that the oxygen permeable membrane 2 is in a continuous swinging state. During this process, the corrugated hose 13 is in a continuous deformation and reset state, providing displacement compensation;

[0057] like Figure 2 and Figure 3 As shown, when the electric telescopic rod 18 is started, the output shaft of the electric telescopic rod 18 drives the gear plate 17 to swing back and forth, the gear plate 17 drives the gear 9 to rotate back and forth, the gear 9 drives the connecting frame 8 to swing back and forth horizontally, and the connecting frame 8 drives the right support rod 4 to swing back and forth. At this time, the adjustment ball 12 rotates back and forth on the ball seat 11, and the transmission through the connecting pipe 3 causes the left support rod 4 to swing parallel to the reciprocating swing of the right support rod 4, so that the oxygen permeable membrane 2 is in a continuous torsion state;

[0058] like Figure 4 and Figure 5 As shown, during the reciprocating swing of the tooth plate 17, the conveying frame 20 is driven to move back and forth, and the conveying frame 20 drives the nozzle 22 to move. The slide bar 24 limits the swing trajectory of the nozzle 22. Under the restriction of its movement trajectory by the slide bar 24 and the support block 25, the nozzle 22 is made to swing back and forth on the oxygen permeable membrane 2. At this time, the conveying pipe 21 conveys water, and the water flows through the conveying frame 20 into the nozzle 22, and then is ejected through the nozzle 23, so that the water flows upward toward the oxygen permeable membrane 2, thereby accelerating the contact rate between the oxygen permeable membrane 2 and the pollutants and flushing the sludge deposited on the outer surface of the oxygen permeable membrane 2.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water treatment device of MABR membrane aeration bioreactor, characterized in that: The invention comprises a vertical frame body (1), wherein an oxygen permeable membrane (2) is uniformly arranged inside the vertical frame body (1), the vertical frame body (1) is hollow, and the top of the vertical frame body (1) is uniformly fixed with four delivery ports (26), and the front and rear ends of the oxygen permeable membrane (2) are both provided with a connecting pipe (3), and the surface of the rear end of the connecting pipe (3) is fixedly connected with a delivery pipe (19), and the connecting pipe (3) is used to deliver oxygen to the oxygen permeable membrane (2), and the connecting pipe (3) is connected to the vertical frame body (1) through a motion component, and the motion component is used to provide the oxygen permeable membrane (2) with a dual-mode switching of cyclic twisting and cyclic swinging, and during the startup period, the oxygen permeable membrane (2) is in a continuously active anti-hardening state, and the bottom end of the vertical frame body (1) is provided with an acceleration mechanism, and the acceleration mechanism is used to synchronously spray upward water flow during the switching of the oxygen permeable membrane (2) to accelerate the contact between the oxygen permeable membrane (2) and the pollutants, and synchronously flush the outer surface of the oxygen permeable membrane (2); The motion assembly includes a support rod (4), the number of the support rods (4) is two, and the two support rods (4) are respectively located on the left and right sides of the top of the vertical frame body (1), the top of the left support rod (4) is fixedly connected to the shaft rod 2 (14), the top of the shaft rod 2 (14) is rotatably connected to the shaft rod 1 (5), the front and rear ends of the shaft rod 1 (5) are rotatably connected to the connecting block (6), the bottom ends of the connecting block (6) are both fixedly connected to the top of the vertical frame body (1), the front end of the shaft rod 1 (5) passes through the connecting block (6) and is fixedly connected to the gear 1 (7), the right end of the right support rod (4) is rotatably connected to the connecting frame (8), the top of the connecting frame (8) is fixedly connected to the gear 2 (9), the surface of the gear 2 (9) is rotatably connected to the fixing frame (10), and one end of the fixing frame (10) is fixedly connected to the inner wall of the vertical frame body (1); The front and rear ends of the support rod (4) are fixedly connected to an adjustment ball (12), the surface of the adjustment ball (12) is rotatably connected to a ball seat (11), and one end of the ball seat (11) is fixedly connected to one end of the connecting pipe (3); The bottom end of the gear 1 (7) is meshed with a tooth plate 1 (15), and an electric telescopic rod 1 (16) is provided on the right side of the tooth plate 1 (15), and the electric telescopic rod 1 (16) is installed on the front side of the top of the vertical frame body (1), and the output shaft of the left end of the electric telescopic rod 1 (16) is fixedly connected to the right end of the tooth plate 1 (15), and the back side of the gear 2 (9) is meshed with a tooth plate 2 (17), and an electric telescopic rod 2 (18) is provided on the right side of the tooth plate 2 (17), and the bottom end of the electric telescopic rod 2 (18) is installed on the right side of the top of the vertical frame body (1), and the output shaft of the left end of the electric telescopic rod 2 (18) is fixedly connected to the right end of the tooth plate 2 (17); The acceleration mechanism includes a conveying frame (20), the conveying frame (20) is located inside the vertical frame body (1), the top end of the conveying frame (20) is fixedly connected to the back side of the second tooth plate (17), the top end of the conveying frame (20) is fixedly connected to the second conveying pipe (21), the front and rear ends of the left side of the conveying frame (20) are both rotatably connected to the nozzle (22), one end of the nozzle (22) is rotatably connected to the sliding rod (24), the right end of the sliding rod (24) is rotatably connected to the support block (25), and the ends of the support blocks (25) that are away from each other are fixedly connected to the inner wall of the vertical frame body (1).

2. A water treatment device of a MABR membrane aeration bioreactor according to claim 1, characterized in that, The top end of the oxygen permeable membrane (2) is connected to the second connecting pipe (27), and the bottom end of the oxygen permeable membrane (2) is connected to the third connecting pipe (28). The front and rear ends of the third connecting pipe (28) are both connected to the vertical frame body (1).

3. A water treatment device of a MABR membrane aeration bioreactor according to claim 2, characterized in that, The front and rear ends of the connecting pipe 2 (27) are fixedly connected to a corrugated hose (13), and one end of the corrugated hose (13) is connected to the surface of the connecting pipe 1 (3).

4. A water treatment device of a MABR membrane aeration bioreactor according to claim 3, characterized in that: The top ends of the nozzles (22) are evenly fixed and connected to nozzles (23), and the nozzles (22) are connected to the conveying frame (20).

5. A treatment method for a MABR membrane aeration bioreactor, wherein the treatment method is an implementation method of a water treatment device based on a MABR membrane aeration bioreactor according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Place the water treatment device into the sewage to be treated, allowing the sewage to fully flow through the reactor; Step 2: Start the water treatment device, and the delivery pipe 1 (19) begins to continuously deliver oxygen to the oxygen permeable membrane (2), forming an oxygen concentration driving force; Step 3: The oxygen permeable membrane (2) is switched to a dual state of cyclic twisting and cyclic swinging by the motion component to activate the oxygen permeable membrane (2) and maintain its continuous active state. Under the combined effect of sufficient oxygen supply and dynamic motion, an aerobic and anoxic environment is formed inside the water treatment device, promoting the simultaneous progress of nitrification and denitrification processes; Step 4: During the biological reaction of the oxygen permeable membrane (2), the acceleration mechanism at the bottom is activated to synchronously spray an upward water flow into the water treatment device, thereby accelerating the contact between the oxygen permeable membrane (2) and the pollutants and flushing the outer surface of the oxygen permeable membrane (2); Step 5: After the predetermined reaction time, stop oxygen delivery and water injection, shut down the moving components, discharge the sludge and treated water, and clean and maintain the interior of the reactor.

6. The treatment method of a MABR membrane aeration bioreactor according to claim 5, characterized in that: The oxygen permeable membrane (2) is a composite material imitating an artificial lung membrane, with a membrane pore size of <0.4 nm, a membrane filament inner diameter of 0.45-0.85 mm, a membrane filament outer diameter of 0.45-0.85 mm, a membrane filament tensile breaking strength of >50 N, and an oxygen supply permeability of >14 kg / kW·h.

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