Water treatment device of MABR (Membrane Aerated Baffled Reactor) and treatment method thereof

Abstract

The invention discloses a water treatment device of an MABR membrane aeration bioreactor and a treatment method of the water treatment device, and relates to the field of sewage treatment.The water treatment device comprises a vertical frame body, oxygen permeation membranes are evenly arranged in the vertical frame body, and first communicating pipes are arranged at the front ends and the rear ends of the oxygen permeation membranes; the surface of the first communicating pipe at the rear end fixedly communicates with a first conveying pipe, the first communicating pipe is used for conveying oxygen to the oxygen permeation membrane, the first communicating pipe is connected with the vertical frame body through a movement assembly, and through double-form switching of the movement assembly, the oxygen permeation membrane is driven to conduct cyclic twisting and swinging, so that the oxygen permeation membrane is driven to conduct oxygen permeation. The contact of oxygen between the surface of the oxygen-permeable membrane and the microbial biological membrane is enhanced, the oxygen utilization rate is increased, the motion state of the membrane is dynamically adjusted, the self-cleaning capacity of the membrane is enhanced, and sludge deposited on the outer surface of the oxygen-permeable membrane is digested while the acceleration mechanism continuously swings at the bottom of the oxygen-permeable membrane to accelerate the contact of the oxygen-permeable membrane and pollutants in water.

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 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.

[0005] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention discloses a water treatment device for a MABR membrane aeration bioreactor, including a vertical frame main body. The inside of the vertical frame main body is uniformly provided with oxygen-permeable membranes. The vertical frame main body is hollow. Four delivery ports are uniformly and fixedly communicated with the top end of the vertical frame main body. Both the front and rear ends of the oxygen-permeable membranes are provided with a first connecting pipe. The surface of the first connecting pipe at the rear end is fixedly communicated with a first delivery pipe. The first connecting pipe is used to deliver oxygen to the oxygen-permeable membranes. The first connecting pipe is connected to the vertical frame main body through a motion assembly. The motion assembly is used to provide a dual-mode switching of cyclic torsion and cyclic swaying for the oxygen-permeable membranes, and keep the oxygen-permeable membranes in a continuously active anti-hardening state during its startup. An acceleration mechanism is arranged at the bottom end of the vertical frame main body. The acceleration mechanism is used to synchronously eject upward water flow during the form switching of the oxygen-permeable membranes, so as to accelerate the contact between the oxygen-permeable membranes and pollutants, and simultaneously scour the outer surface of the oxygen-permeable membranes.

[0006] Furthermore, both the top ends of the oxygen-permeable membranes are communicated with a second connecting pipe, and both the bottom ends of the oxygen-permeable membranes are communicated with a third connecting pipe. Both the front and rear ends of the third connecting pipe are connected to the vertical frame main body.

[0007] Furthermore, corrugated hoses are fixedly connected to both the front and rear ends of the second connecting pipe, and one ends of the corrugated hoses are respectively communicated with the surface of the first connecting pipe.

[0008] Furthermore, the motion components include support rods. The number of the support rods is two. The two support rods are respectively located on the left and right sides of the top end of the vertical frame main body. The top end of the left support rod is fixedly connected with a second shaft rod. The top end of the second shaft rod is rotatably connected with a first shaft rod. The front and rear ends of the first shaft rod are rotatably connected with connecting blocks. The bottom ends of the connecting blocks are fixedly connected with the top end of the vertical frame main body. The front end of the first shaft rod passes through the connecting block and is fixedly connected with a first gear. The right end of the right support rod is rotatably connected with a connecting frame. The top end of the connecting frame is fixedly connected with a second gear. The surface of the second gear is rotatably connected with a fixed frame. One end of the fixed frame is fixedly connected with the inner wall of the vertical frame main body.

[0009] Furthermore, adjusting balls are fixedly connected to both the front and rear ends of the support rods. The surfaces of the adjusting balls are rotatably connected with ball seats. One ends of the ball seats are fixedly connected with one ends of the first connecting pipes.

[0010] Furthermore, a first toothed plate is meshed with the bottom end of the first gear. An electric telescopic rod one is arranged on the front side of the top end of the vertical frame main body on the right side of the first toothed plate. The output shaft at the left end of the electric telescopic rod one is fixedly connected with the right end of the first toothed plate. A second toothed plate is meshed with the back side of the second gear. An electric telescopic rod two is arranged on the right side of the top end of the vertical frame main body at the bottom of the second toothed plate. The output shaft at the left end of the electric telescopic rod two is fixedly connected with the right end of the second toothed plate.

[0011] Furthermore, the acceleration mechanism includes a conveying frame located inside the vertical frame body. The top end of the conveying frame is fixedly connected to the back side of the second toothed plate. The top end of the conveying frame is fixedly communicated with a second conveying pipe. The front and rear ends on the left side of the conveying frame are both rotatably connected with spray pipes. One end of each spray pipe is rotatably connected with a sliding rod. The right ends of the sliding rods are rotatably connected with support blocks. The mutually remote ends of the support blocks are fixedly connected to the inner wall of the vertical frame body.

[0012] Furthermore, the top ends of the spray pipes are uniformly and fixedly communicated with nozzles, and the spray pipes are communicated with the conveying frame.

[0013] In a second aspect, a treatment method for a MABR membrane aeration bioreactor is provided, including the following steps: Step 1: Put the water treatment device into the sewage to be treated, so that the sewage fully flows through the inside of the reactor; Step 2: Start the water treatment device, and the first conveying pipe continuously conveys oxygen to the oxygen-permeable membrane to form a concentration difference driving force of oxygen; Step 3: Through the motion assembly, the oxygen-permeable membrane performs a dual-mode switching of cyclic torsion and cyclic swaying to activate the oxygen-permeable membrane and keep it in a continuously active state. Under the combined action of sufficient oxygen supply and dynamic motion, an aerobic and anoxic environment are formed inside the water treatment device to promote the synchronous progress of the nitrification and denitrification processes; Step 4: During the biological reaction process of the oxygen-permeable membrane, start the acceleration mechanism at the bottom to synchronously inject upward water flows into the water treatment device to accelerate the contact between the oxygen-permeable membrane and pollutants, and the injected water flows scour the outer surface of the oxygen-permeable membrane; Step 5: After a predetermined reaction time, stop the oxygen delivery and water flow injection, turn off the motion assembly, discharge the sludge and treated water, and clean and maintain the inside of the reactor.

[0014] Furthermore, the oxygen-permeable membrane is an artificial lung membrane-like composite material, with a membrane pore diameter <0.4 nm, an inner and outer diameter of the membrane filaments of 0.45 - 0.85 mm, a tensile fracture strength of the membrane filaments >50 N, and an oxygen supply and ventilation volume >14 kg / kW·h.

[0015] (III) Beneficial effects Adopting the technical solution provided by the present invention, compared with the known prior art, it has the following beneficial effects: 1. Through the dual-mode switching of the motion component, driving the oxygen-permeable membrane to circulate and swing, enhancing the contact between oxygen on the surface of the oxygen-permeable membrane and the microbial biofilm, improving the oxygen utilization rate, 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 regions, optimizing the synchronous progress of nitrification and denitrification, and maintaining the cleanliness and activity of the membrane through continuous adjustment of the motion component, extending the operation cycle of the equipment and reducing the maintenance frequency.

[0016] 2. Through the continuous swinging of the acceleration mechanism at the bottom of the oxygen-permeable membrane, synchronously circulating and swinging following the start of the second electric telescopic rod. During the cyclic swinging of the oxygen-permeable membrane, the spray pipe 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 decomposing the sludge deposited on the outer surface of the oxygen-permeable membrane, thus accelerating the treatment speed of pollutants and effectively removing pollutant deposition, further preventing the surface of the oxygen-permeable membrane from hardening and being polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention; Figure 2 It is a schematic three-dimensional structure diagram of the first connecting pipe, the first shaft rod, the first gear and the second gear in the present invention; Figure 3 It is a schematic three-dimensional structure diagram of the conveying frame and the spray pipe in the present invention; Figure 4 In the present invention Figure 3 It is a partial enlarged structure diagram at position A in the present invention; Figure 5 It is a schematic three-dimensional structure diagram of the spray pipe and the conveying frame from another angle in the present invention; Figure 6 It is a schematic three-dimensional structure diagram of the whole from another angle in the present invention; Figure 7 It is a schematic three-dimensional structure diagram of the oxygen-permeable membrane, the first conveying pipe, the first connecting pipe and the third connecting pipe in the present invention; Figure 8 It is a schematic three-dimensional structure diagram of the vertical frame main body and the conveying port in the present invention.

[0019] The reference numerals in the figure respectively represent: 1. vertical frame body; 2. oxygen permeable membrane; 3. first connecting pipe; 4. support rod; 5. first shaft rod; 6. connecting block; 7. first gear; 8. connecting frame; 9. second gear; 10. fixing frame; 11. ball seat; 12. adjusting ball; 13. corrugated hose; 14. second shaft rod; 15. first toothed plate; 16. first electric telescopic rod; 17. second toothed plate; 18. second electric telescopic rod; 19. first conveying pipe; 20. conveying frame; 21. second conveying pipe; 22. spray pipe; 23. nozzle; 24. sliding rod; 25. support block; 26. conveying port; 27. second connecting pipe; 28. third connecting pipe. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Embodiment 1 A water treatment device of a MABR membrane aeration bioreactor in this embodiment, as Figures 1 - 8 shown, includes a vertical frame body 1. Oxygen permeable membranes 2 are uniformly arranged inside the vertical frame body 1. The tops of the oxygen permeable membranes 2 are all connected to a second connecting pipe 27, and the bottoms of the oxygen permeable membranes 2 are all connected to a third connecting pipe 28. The front and rear ends of the third connecting pipe 28 are both connected to the vertical frame body 1. The front and rear ends of the second connecting pipe 27 are both fixedly connected to a corrugated hose 13. One end of the corrugated hose 13 is connected to the surface of the first connecting pipe 3. The vertical frame body 1 is hollow. Four conveying ports 26 are uniformly and fixedly connected to the top of the vertical frame body 1. The first connecting pipes 3 are arranged at the front and rear ends of the oxygen permeable membrane 2. The surface of the rear first connecting pipe 3 is fixedly connected to a first conveying pipe 19. The first connecting pipe 3 is used to supply oxygen to the oxygen permeable membrane 2. The first connecting pipe 3 is connected to the vertical frame body 1 through a motion assembly. The motion assembly is used to provide a dual-mode switching of cyclic torsion and cyclic swaying for the oxygen permeable membrane 2, and keep the oxygen permeable membrane 2 in a continuously active anti-hardening state during its startup period.

[0023] The moving parts include two support rods 4. 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 with a second shaft 14. The top of the second shaft 14 is rotatably connected with a first shaft 5. The front and rear ends of the first shaft 5 are rotatably connected with connecting blocks 6. The bottom ends of the connecting blocks 6 are fixedly connected with the top of the vertical frame body 1. The front end of the first shaft 5 passes through the connecting block 6 and is fixedly connected with a first gear 7. The right end of the right support rod 4 is rotatably connected with a connecting frame 8. The top of the connecting frame 8 is fixedly connected with a second gear 9. The surface of the second gear 9 is rotatably connected with a fixing frame 10. One end of the fixing frame 10 is fixedly connected with the inner wall of the vertical frame body 1. The front and rear ends of the support rod 4 are fixedly connected with adjusting balls 12. The surfaces of the adjusting balls 12 are rotatably connected with ball seats 11. One end of each ball seat 11 is fixedly connected with one end of a first communicating pipe 3.

[0024] The bottom end of the first gear 7 meshes with a first toothed plate 15. A first electric telescopic rod 16 is arranged on the right side of the first toothed plate 15. The first electric telescopic rod 16 is installed on the front side of the top of the vertical frame body 1. The output shaft at the left end of the first electric telescopic rod 16 is fixedly connected with the right end of the first toothed plate 15. The back side of the second gear 9 is meshed and connected with a second toothed plate 17. A second electric telescopic rod 18 is arranged on the right side of the second toothed plate 17. The bottom end of the second electric telescopic rod 18 is installed on the right side of the top of the vertical frame body 1. The output shaft at the left end of the second electric telescopic rod 18 is fixedly connected with the right end of the second toothed plate 17.

[0025] Compared with the prior art, by realizing the cyclic torsion and swaying of the oxygen-permeable membrane 2, the oxygen-permeable membrane 2 can be effectively activated and cleaned under different motion states, enhancing the oxygen transmission efficiency, preventing the surface of the oxygen-permeable membrane from hardening and the accumulation of pollutants, thereby improving the overall operation efficiency, stability and anti-blocking ability of the reactor, and significantly improving the sewage treatment effect and the durability of the equipment.

[0026] Embodiment 2 This embodiment provides an acceleration mechanism. An acceleration mechanism is arranged at the bottom of the vertical frame body 1. The acceleration mechanism is used to synchronously inject upward water flow during the morphological switching of the oxygen-permeable membrane 2 to accelerate the contact between the oxygen-permeable membrane 2 and pollutants and synchronously scour the outer surface of the oxygen-permeable membrane 2.

[0027] The acceleration mechanism includes a conveying frame 20. The conveying frame 20 is located inside the vertical frame body 1. The top of the conveying frame 20 is fixedly connected with the back side of the second toothed plate 17. The top of the conveying frame 20 is fixedly communicated with a second conveying pipe 21. The front and rear ends on the left side of the conveying frame 20 are rotatably connected with spray pipes 22. One end of each spray pipe 22 is rotatably connected with a sliding rod 24. The right ends of the sliding rods 24 are rotatably connected with support blocks 25. The mutually remote ends of the support blocks 25 are fixedly connected with the inner wall of the vertical frame body 1.

[0028] Compared with the prior art, the combination of synchronous injection of upward water flow 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, 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.

[0029] Example 3 In this embodiment, a treatment method for a MABR membrane aeration bioreactor includes the following steps: Step 1: Put the water treatment device into the sewage to be treated, and let the sewage fully flow through the inside of the reactor. Step 2: Start the water treatment device, and the first conveying pipe 19 starts to continuously convey oxygen to the oxygen-permeable membrane 2 to form a concentration difference driving force for oxygen. The oxygen-permeable membrane 2 is a composite material imitating an artificial lung membrane, with a membrane pore diameter <0.4 nm, an inner and outer diameter of the membrane filament of 0.45 - 0.85 mm, a tensile fracture strength of the membrane filament >50 N, and an oxygen supply and ventilation volume >14 kg / kW·h. Step 3: Through the motion component, the oxygen-permeable membrane 2 performs a dual-mode switching of cyclic torsion and cyclic swaying to activate the oxygen-permeable membrane 2 and maintain its continuous active state. Under the combined action of sufficient oxygen supply and dynamic movement, aerobic and anoxic environments are formed inside the water treatment device to promote the synchronous progress of nitrification and denitrification processes. Step 4: During the biological reaction process of the oxygen-permeable membrane 2, start the acceleration mechanism at the bottom to synchronously inject an upward water flow into the water treatment device to accelerate the contact between the oxygen-permeable membrane 2 and pollutants, and the jet water flow flushes the outer surface of the oxygen-permeable membrane 2. Step 5: After a predetermined reaction time, stop the oxygen delivery and water jet, turn off the motion component, discharge the sludge and treated water, and clean and maintain the inside of the reactor.

[0030] Working principle: When the present invention is specifically implemented, connect the oxygen supply device to the first conveying pipe 19, connect the water supply device to the second conveying pipe 21, place the whole device in the treatment pool, oxygen is input from the first conveying pipe 19 into the first connecting pipe 3, and then conveyed to the inside of the oxygen-permeable membrane 2 through the corrugated hose 13 and the second connecting pipe 27. The oxygen-permeable membrane 2 reacts with the pollutants in the water, and the treated water is conveyed to the vertical frame main body 1 through the third connecting pipe 28 and finally conveyed out through the conveying port 26. Such as Figure 1 And Figure 2As shown, when the first electric telescopic rod 16 is activated, the output shaft of the first electric telescopic rod 16 drives the first toothed plate 15 to reciprocate, the first toothed plate 15 drives the first gear 7 to rotate reciprocally, the first gear 7 drives the first shaft rod 5 to rotate reciprocally, the first shaft rod 5 drives the second shaft rod 14 to swing reciprocally, the second shaft rod 14 drives the left support rod 4 to swing, and the right support rod 4 is supported by the connecting frame 8. Through the transmission of the first connecting pipe 3, the two support rods 4 swing synchronously, and then the first connecting pipe 3 drives the oxygen permeable membrane 2 to swing reciprocally 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 state of continuous deformation and reset, providing displacement compensation; As Figure 2 and Figure 3 shown, when the second electric telescopic rod 18 is activated, the output shaft of the second electric telescopic rod 18 drives the second toothed plate 17 to swing reciprocally, the second toothed plate 17 drives the second gear 9 to rotate reciprocally, the second gear 9 drives the connecting frame 8 to swing horizontally reciprocally, the connecting frame 8 drives the right support rod 4 to swing reciprocally. At this time, the adjusting ball 12 rotates reciprocally in the ball seat 11. Through the transmission of the first connecting pipe 3, the left support rod 4 swings parallelly following the reciprocal swing of the right support rod 4, so that the oxygen permeable membrane 2 is in a continuous twisting state; As Figure 4 and Figure 5 shown, during the reciprocal swing of the second toothed plate 17, it drives the conveying frame 20 to reciprocate, the conveying frame 20 drives the spray pipe 22 to move, and the sliding rod 24 restricts the swinging trajectory of the spray pipe 22. Under the restriction of the sliding rod 24 and the support block 25 on its moving trajectory, the spray pipe 22 swings reciprocally on the oxygen permeable membrane 2. At this time, the second conveying pipe 21 conveys water flow, the water flow enters the spray pipe 22 through the conveying frame 20, and then sprays out the water flow through the nozzle 23, so that the water flow flushes upwards towards the oxygen permeable membrane 2, 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.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water treatment device of a MABR membrane aeration bioreactor, characterized in that, It includes a vertical frame body (1), an oxygen permeable membrane (2) is uniformly arranged inside the vertical frame body (1), the vertical frame body (1) is hollow, four delivery ports (26) are uniformly and fixedly communicated with the top end of the vertical frame body (1), both the front and rear ends of the oxygen permeable membrane (2) are provided with a first connecting pipe (3), a first delivery pipe (19) is fixedly communicated with the surface of the first connecting pipe (3) at the rear end, the first connecting pipe (3) is used to deliver oxygen to the oxygen permeable membrane (2), the first connecting pipe (3) is connected to the vertical frame body (1) through a motion component, the motion component is used to provide a dual-mode switching of cyclic torsion and cyclic swaying for the oxygen permeable membrane (2), and during its startup, the oxygen permeable membrane (2) is in a continuously active anti-hardening state. An acceleration mechanism is arranged at the bottom end of the vertical frame body (1), and the acceleration mechanism is used to synchronously eject upward water flow during the mode switching of the oxygen permeable membrane (2) to accelerate the contact between the oxygen permeable membrane (2) and pollutants and simultaneously wash the outer surface of the oxygen permeable membrane (2).

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

3. The water treatment device of a MABR membrane aeration bioreactor according to claim 2, characterized in that, Both the front and rear ends of the second connecting pipe (27) are fixedly connected with corrugated hoses (13), and one ends of the corrugated hoses (13) are communicated with the surface of the first connecting pipe (3).

4. The water treatment device of a MABR membrane aeration bioreactor according to claim 1, characterized in that, The motion components include support rods (4), the number of the support rods (4) is two, the two support rods (4) are respectively located on the left and right sides of the top end of the vertical frame body (1), a second shaft rod (14) is fixedly connected to the top end of the support rod (4) on the left side, a first shaft rod (5) is rotatably connected to the top end of the second shaft rod (14), the front and rear ends of the first shaft rod (5) are rotatably connected with connecting blocks (6), the bottom ends of the connecting blocks (6) are fixedly connected to the top end of the vertical frame body (1), the front end of the first shaft rod (5) passes through the connecting block (6) and is fixedly connected with a first gear (7), a connecting frame (8) is rotatably connected to the right end of the support rod (4) on the right side, a second gear (9) is fixedly connected to the top end of the connecting frame (8), the surface of the second gear (9) is rotatably connected with a fixed frame (10), and one end of the fixed frame (10) is fixedly connected to the inner wall of the vertical frame body (1).

5. The water treatment device of a MABR membrane aeration bioreactor according to claim 4, characterized in that, Both the front and rear ends of the support rod (4) are fixedly connected with adjusting balls (12), the surfaces of the adjusting balls (12) are rotatably connected with ball seats (11), and one ends of the ball seats (11) are fixedly connected to one end of the first connecting pipe (3).

6. The water treatment device of a MABR membrane aeration bioreactor according to claim 4, characterized in that, The bottom end of the first gear (7) meshes with the first toothed plate (15). The right side of the first toothed plate (15) is provided with a first electric telescopic rod (16). The first electric telescopic rod (16) is installed on the front side of the top end of the vertical frame body (1). The output shaft at the left end of the first electric telescopic rod (16) is fixedly connected to the right end of the first toothed plate (15). The back side of the second gear (9) is meshed and connected with a second toothed plate (17). The right side of the second toothed plate (17) is provided with a second electric telescopic rod (18). The bottom end of the second electric telescopic rod (18) is installed on the right side of the top end of the vertical frame body (1). The output shaft at the left end of the second electric telescopic rod (18) is fixedly connected to the right end of the second toothed plate (17).

7. The water treatment device of a MABR membrane aeration bioreactor according to claim 6, characterized in that, 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 toothed plate (17). The top end of the conveying frame (20) is fixedly communicated with a second conveying pipe (21). Both the front and rear ends on the left side of the conveying frame (20) are rotatably connected with spray pipes (22). One end of each spray pipe (22) is rotatably connected with a sliding rod (24). The right ends of the sliding rods (24) are rotatably connected with support blocks (25). The mutually remote ends of the support blocks (25) are fixedly connected to the inner wall of the vertical frame body (1).

8. The water treatment device of a MABR membrane aeration bioreactor according to claim 7, characterized in that, The top ends of the spray pipes (22) are uniformly and fixedly communicated with nozzles (23). The spray pipes (22) are communicated with the conveying frame (20).

9. A treatment method for a MABR membrane aeration bioreactor, wherein the treatment method is an implementation method of a water treatment device for a MABR membrane aeration bioreactor according to any one of claims 1-8, characterized in that, It includes the following steps: Step 1: Put the water treatment device into the sewage to be treated, so that the sewage fully flows through the inside of the reactor; Step 2: Start the water treatment device, and the first conveying pipe (19) starts to continuously supply oxygen to the oxygen-permeable membrane (2) to form a concentration difference driving force of oxygen; Step 3: Through the motion assembly, the oxygen-permeable membrane (2) performs a dual-mode switching of cyclic torsion and cyclic swaying to activate the oxygen-permeable membrane (2) and keep it in a continuously active state. Under the combined action of sufficient oxygen supply and dynamic motion, an aerobic and anoxic environment are formed inside the water treatment device to promote the synchronous progress of the nitrification and denitrification processes; Step 4: During the biological reaction process of the oxygen-permeable membrane (2), start the acceleration mechanism at the bottom end to synchronously spray upward water flows into the water treatment device to accelerate the contact between the oxygen-permeable membrane (2) and pollutants, and the sprayed water flows scour the outer surface of the oxygen-permeable membrane (2); Step 5: After a predetermined reaction time, stop the oxygen supply and water flow spraying, turn off the motion assembly, discharge the sludge and treated water, and clean and maintain the inside of the reactor.

10. The treatment method of a MABR membrane aeration bioreactor according to claim 9, characterized in that, The oxygen-permeable membrane (2) is an artificial lung membrane-like composite material, with a membrane pore diameter <0.4 nm, an inner and outer diameter of the membrane filament of 0.45 - 0.85 mm, a tensile fracture strength of the membrane filament >50 N, and an oxygen supply and ventilation volume >14 kg / kW·h.

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