An MBR membrane bioreactor

Abstract

The present invention discloses an MBR membrane bioreactor, comprising a reverse tank, an MBR membrane curtain, a first lifting mechanism, a supporting device, a second lifting mechanism, a flapping assembly, and a flapping drive device. The MBR membrane curtains are arranged uniformly along the length of the reverse tank and in a sideways tilted state within the reverse tank. The first lifting mechanism is arranged within the reverse tank to fold the MBR membrane curtain into a folded membrane curtain. The supporting device comprises multiple support plate groups, each support plate group comprising multiple support plates, which can be inserted into the folded membrane curtain after being raised. The second lifting mechanism is arranged within the base plate to drive all support plates to rise and fall simultaneously, and to ensure that the length of the support plates extending from the base plate is less than half the length of the MBR membrane curtain. The flapping assembly can flap the folded membrane curtain during its deployment. The flapping drive device is used to drive the flapping assembly to deploy or retract. This MBR membrane bioreactor can clean the MBR membrane curtain online, thereby reducing manpower waste and damage to the MBR membrane curtain.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment equipment, in particular to an MBR membrane bioreactor. Background Art

[0002] In recent years, the requirements for water environment management have been further strengthened. Many regions have proposed that some indicators of urban sewage treatment meet the requirements of Class IV or III water quality in the "Surface Water Environmental Quality Standards", placing higher demands on sewage treatment processes. Membrane bioreactors (MBRs) are widely used in sewage treatment due to their high effluent quality, stable structure, and simple operation.

[0003] The MBR membrane bioreactor is used for sewage treatment. The MBR membrane of the reactor includes multiple membrane tubes, which are stacked together and fixed at both ends by rods to form a sheet-like membrane curtain. However, during the use of existing MBR membrane bioreactors, a dirt layer is formed on the surface of the MBR membrane curtain due to adsorption and deposition, resulting in a decrease in membrane flux and an increase in transmembrane pressure difference, which affects the normal operation of the MBR membrane.

[0004] In order not to affect the life of the MBR membrane curtain, the commonly used restorative cleaning method at this stage mainly adopts the method of chemical dumping and injection and full aeration. Although this method can shorten the life of the MBR membrane curtain, since there is a layer of adsorbed and deposited dirt on the surface of the MBR membrane curtain, in order to improve the cleaning efficiency, it is necessary to remove most of the dirt on the MBR membrane curtain before chemical dumping and injection and full aeration.

[0005] Dirt removal on MBR membrane curtains is mostly done by removing the MBR membrane curtains from the reactor and dragging them to special MBR membrane curtain removal equipment for removal. This method not only wastes manpower, but also easily causes damage to the MBR membrane curtains during the removal and dragging process. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an MBR membrane bioreactor that can clean the MBR membrane curtain online, thereby reducing manpower waste and damage to the MBR membrane curtain.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solution: an MBR membrane bioreactor, comprising:

[0008] Reverse pool;

[0009] MBR membrane curtains, wherein the MBR membrane curtains are provided in a plurality, and the MBR membrane curtains are arranged uniformly along the length direction of the inversion tank and in a tilted state to one side in the inversion tank;

[0010] A first lifting mechanism is provided in the inversion tank and is connected to the top ends of all the MBR membrane curtains, capable of driving the top ends of all the MBR membrane curtains to descend simultaneously so as to fold the MBR membrane curtains;

[0011] A support device, wherein the bottom plate of the reverse pool is a hollow plate, and a plurality of through grooves corresponding to the folded membrane curtain and connecting the inner cavity of the reverse pool with the inner cavity of the bottom plate are opened on the bottom plate at intervals along its length direction. The support device includes multiple groups of support plate groups, and the multiple groups of support plate groups are evenly spaced along the length direction of the reverse pool in the reverse pool. Each group of the support plate groups includes multiple support plates, and the multiple support plates are linearly arranged in close proximity along the width direction of the reverse pool and can be slid up and down in the through grooves. After the support plates are raised, they can be inserted into the MBR membrane curtain in a folded state;

[0012] A second lifting mechanism is provided in the bottom plate, and is used to drive all the support plates to rise and fall simultaneously, and to make the length of the support plates extending from the bottom plate less than half the length of the MBR membrane curtain;

[0013] A flapping assembly, wherein each support plate is provided with a group of flapping assemblies, the flapping assemblies can be unfolded or folded, and the flapping assemblies can flap the folded membrane curtain during the unfolding process; and

[0014] A flapping drive device is provided on the support plate and is used for driving the flapping assembly to expand or close.

[0015] Furthermore, the second lifting mechanism includes a support frame and a second lifting power source, the support frame includes a cross bar and a connecting rod, the cross bar is arranged along the length direction of the reverse pool, there are two cross bars, the two cross bars are arranged at intervals along the width direction of the reverse pool, and multiple connecting rods are arranged at intervals between the two cross bars to form a support frame, the support plate group is connected to the corresponding connecting rods, and the second lifting power source is connected to the support frame and can drive the support frame to rise and fall.

[0016] Furthermore, the flapping assembly includes a flapping plate, each of which is provided with a flapping plate on the left and right sides of the support plate, and the tops of the two flapping plates are hinged to the support plate through hinges, and the flapping drive device is connected to the two flapping plates, for driving the two flapping plates to open or close around the hinge to flap and clean the folded MBR membrane curtain.

[0017] Furthermore, when the flapping plate is in an open state, it can drive the MBR membrane curtain supported thereon to expand outwards and abut against the adjacent MBR membrane curtain.

[0018] Furthermore, the flapping drive device includes an airbag and an air source controller, the support plate is a hollow plate, and a vent is provided on the support plate to connect the inner cavity of the support plate with the outside world. The airbag is wrapped outside the support plate, and the vent is located inside the airbag. The cross bar and the connecting rod are both hollow rods and are connected to each other, and the bottom of the support plate is connected to the connecting rod. The air source controller is arranged in the inner cavity of the bottom plate and is connected to the cross bar or the connecting rod through an air pipe. The air source controller performs inflation or deflation.

[0019] Furthermore, both side walls of the support plate are provided with avoidance grooves, and the airbag is located in the avoidance grooves.

[0020] Furthermore, the flapping plate is located in the avoidance groove when in the folded state.

[0021] Furthermore, it also includes a twisting and kneading drive device, the support plate is connected to the connecting rod through a hollow rotating shaft, the twisting and kneading drive device is arranged on the support frame, and is connected to all the rotating shafts, and is used to drive the rotating shafts to rotate clockwise and counterclockwise back and forth, thereby driving the support plate to rotate clockwise and counterclockwise to twist and knead the folded film curtain.

[0022] Furthermore, the twisting and kneading drive device includes a horizontally telescopic power source, a push plate, a driving rack and a gear. The end of each rotating shaft located in the connecting rod is fixedly sleeved with a gear, and the horizontally telescopic power source and the push plate are both arranged in the cross bar, and the push plate is arranged on the power output shaft of the horizontally telescopic power source. The horizontally telescopic power source can drive the push plate to move back and forth along the width direction of the reverse pool. A driving rack is provided in each connecting rod, and the driving rack is engaged with all the gears located in this connecting rod.

[0023] Furthermore, the top of the support plate is provided with a V-shaped groove with an opening facing upward, and the membrane tube of the MBR membrane curtain can be located in the V-shaped groove.

[0024] Beneficial effects of the present invention:

[0025] When the MBR membrane bioreactor is in normal use, the support plate is stored and hidden in the bottom plate. The MBR membrane bioreactor is in normal use. When cleaning is required, the support plate is first raised by the second lifting mechanism, and then the top of the MBR membrane curtain is driven down by the first lifting mechanism to fold the MBR membrane curtain on the support plate. Then the flapping drive device drives the flapping assembly to repeatedly expand or close. During the expansion process of the flapping assembly, the folded membrane curtain can be flapped, thereby knocking off the dirt on the MBR membrane curtain and achieving the purpose of cleaning.

[0026] Of course, after the beating cleaning is completed, chemical agents can be injected into the reverse tank 100 to perform additional cleaning on the MBR membrane curtain to remove organic compounds on the MBR membrane curtain, thereby further improving the cleaning effect.

[0027] With this reactor, there is no need to manually disassemble the reactor for cleaning, thereby reducing manpower. At the same time, it can also avoid damage to the MBR membrane curtain during the dismantling and dragging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0029] Figure 1 A schematic diagram of an MBR membrane bioreactor provided in one embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of folding and then flapping an MBR membrane curtain in an MBR membrane bioreactor is shown;

[0031] Figure 3 for Figure 1 A schematic diagram of a kneading drive device in an MBR membrane bioreactor is shown;

[0032] Figure 4 for Figure 1 A schematic diagram of the deployment of a flapping assembly in an MBR membrane bioreactor is shown;

[0033] Reference numerals:

[0034] 100. Reverse tank; 200. MBR membrane curtain; 300. First lifting mechanism; 400. Support device; 410. Support plate; 411. V-shaped groove; 500. Second lifting mechanism; 510. Support frame; 511. Cross bar; 512. Connecting rod; 520. Second lifting power source; 600. Flapping assembly; 610. Flapping plate; 700. Flapping drive device; 710. Air bag; 720. Air source controller; 800. Twisting and kneading drive device; 810. Horizontal telescopic power source; 820. Push plate; 830. Drive rack; 840. Gear. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0036] See Figures 1 to 4The present invention provides an MBR membrane bioreactor, including a reversal tank 100, an MBR membrane curtain 200, a first lifting mechanism 300, a supporting device 400, a second lifting mechanism 500, a flapping assembly 600 and a flapping driving device 700.

[0037] Specifically, the inversion tank 100 is used to hold wastewater. A plurality of MBR membrane curtains 200 are provided, each of which is evenly arranged along the length of the inversion tank 100 and tilted to one side. The tilted arrangement facilitates folding the MBR membrane curtains 200 downward.

[0038] The first lifting mechanism 300 is disposed within the inversion tank 100 and is connected to the top ends of all the MBR membrane curtains 200. It can drive the top ends of all the MBR membrane curtains 200 to descend simultaneously, causing the MBR membrane curtains 200 to fold to form a folded membrane curtain. In a specific implementation, the first lifting mechanism 300 may include a support frame and a lifting mechanism. The top ends of all the MBR membrane curtains 200 are fixed to the support frame. The lifting mechanism is connected to the support frame. Through the lifting mechanism, all the MBR membrane curtains 200 can be driven to rise and fall vertically within the inversion tank 100, thereby folding the MBR membrane curtains 200.

[0039] The bottom plate of the inversion tank 100 is a hollow plate, and a plurality of through grooves are provided on the bottom plate at intervals along its length, corresponding to the folded membrane curtain and connecting the inner cavity of the inversion tank 100 with the inner cavity of the bottom plate. The support device 400 includes multiple groups of support plate groups, which are evenly spaced along the length of the inversion tank 100. Each group of support plate groups includes multiple support plates 410, which are linearly arranged in close proximity along the width of the inversion tank 100. The support plates 410 are arranged in the through grooves so as to slide up and down, and after the support plates 410 are raised, they can be inserted into the folded MBR membrane curtain 200.

[0040] A second lifting mechanism 500 is located within the base plate and is used to simultaneously raise and lower all support plates 410, ensuring that the length of each support plate 410 extending from the base plate is less than half the height of the MBR membrane curtain 200. Each support plate 410 is equipped with a flapping assembly 600. These flapping assemblies 600 can be expanded or folded, and when deployed, they flap the folded membrane curtain. A flapping drive 700 is located on the support plate 410 and is used to drive the flapping assembly 600 to expand or close.

[0041] During normal use, the support plate 410 is stored and hidden in the bottom plate, and the MBR membrane bioreactor is used normally. When cleaning is required, the support plate 410 is first raised by the second lifting mechanism 500, and then the top of the MBR membrane curtain 200 is driven down by the first lifting mechanism 300, so that the MBR membrane curtain 200 is folded on the support plate 410, and then the flapping drive device 700 drives the flapping assembly 600 to repeatedly expand or close. During the expansion process of the flapping assembly 600, the folded membrane curtain can be flapped, so that the dirt on the MBR membrane curtain 200 is flapped off, thereby achieving the purpose of cleaning.

[0042] Of course, after the beating cleaning is completed, chemical agents can be injected into the inversion tank 100 to perform additional cleaning on the MBR membrane curtain 200 to remove organic compounds on the MBR membrane curtain 200, thereby further improving the cleaning effect.

[0043] With this reactor, there is no need to manually disassemble the reactor for cleaning, thereby reducing manpower and also avoiding damage to the MBR membrane curtain 200 during the dismantling and dragging process.

[0044] In the present embodiment, the second lifting mechanism 500 includes a support frame 510 and a second lifting power source 520. The support frame 510 includes a cross bar 511 and a connecting rod 512. The cross bar 511 is arranged horizontally along the length direction of the reverse pool 100. There are two cross bars 511, and the two cross bars 511 are arranged at intervals along the width direction of the reverse pool 100. A plurality of connecting rods 512 are arranged at intervals between the two cross bars 511 to form the support frame 510. The support plate 410 group is connected to the corresponding connecting rod 512, and the second lifting power source 520 is connected to the support frame 510 and can drive the support frame 510 to rise and fall.

[0045] During use, when the second lifting power source 520 is activated, it only needs to drive the support frame 510 to achieve the purpose of driving all the support plates 410 to rise or fall.

[0046] In this embodiment, the flapping assembly 600 includes flapping plates 610. Two flapping plates 610 are provided on the left and right sides of each support plate 410, and the tops of the two flapping plates 610 are hinged to the support plate 410. The flapping drive device 700 is connected to the two flapping plates 610 and is used to drive the two flapping plates 610 to open or close around the hinge to flap and clean the folded MBR membrane.

[0047] When the beating plate 610 is opened to both sides by the beating driving device 700 , the MBR membrane supported thereon can be beat to shake off the dirt on the MBR membrane curtain 200 .

[0048] As a preferred embodiment, when the flapping plate 610 is in an open state, it can drive the folded MBR membrane curtain 200 supported thereon to expand outward and abut against the adjacent MBR membrane curtain 200. In this way, when the flapping plate 610 flaps the folded membrane curtain, the adjacent folded membrane curtains can flap against each other, thereby further improving efficiency.

[0049] In the present embodiment, the slapping drive device 700 includes an air bag 710 and an air source controller 720. The support plate 410 is a hollow plate. The support plate 410 is provided with an air vent that connects the inner cavity of the support plate 410 with the outside world. The air bag 710 is wrapped outside the support plate 410, and the air vent is located in the air bag 710. The cross bar 511 and the connecting rod 512 are both hollow rods and are connected to each other, and the support plate 410 is connected to the connecting rod 512. The air source controller 720 is arranged in the inner cavity of the base plate and is connected with the cross bar 511 or the connecting rod 512 through an air pipe. The air source controller 720 can be inflated or deflated. During specific implementation, the air source controller 720 can select an air pump that can be inflated and inhaled in the prior art.

[0050] When air is inflated into the airbag 710, the two flapping plates 610 are driven to open. Conversely, when air is deflated, the two flapping plates 610 are closed. It is important to note that the opening angle of the flapping plates 610 should be controlled by the air source controller 720 to prevent the flapping plates 610 from being too open and causing damage or pressure to the MBR membrane.

[0051] In other embodiments, the flapping drive device 700 may also use other devices, such as a connecting rod mechanism, etc., as long as the device can conveniently drive the flapping plate 610 to open or close.

[0052] In a specific implementation, escape grooves can be provided on both side walls of the support plate 410, with the airbag 710 positioned within the escape grooves. This protects the airbag 710 while reducing the space occupied by the airbag 710. Furthermore, the flapping plate 610 can be positioned within the escape grooves when in a collapsed state, further reducing the space occupied by the flapping plate 610.

[0053] As a preferred embodiment, the reactor also includes a kneading drive device 800. The support plate 410 is connected to the connecting rod 512 via a hollow rotating shaft. The kneading drive device 800 is mounted on the support frame 510 and connected to all the rotating shafts. It is used to drive the rotating shafts to rotate clockwise and counterclockwise, thereby driving the support plate 410 to rotate clockwise and counterclockwise to knead the folded membrane curtain.

[0054] When the support plate 410 rotates clockwise and counterclockwise, the MBR membrane curtain 200 can be rotated in the reverse and forward directions, thereby causing the MBR membrane curtain 200 to be twisted in the forward and reverse directions, thereby further achieving the purpose of cleaning the MBR membrane curtain 200.

[0055] Specifically, the twisting and kneading drive device 800 includes a horizontal telescopic power source 810, a push plate 820, a drive rack 830 and a gear 840. Each rotating shaft is positioned at the end portion in the connecting rod 512 and is fixedly sleeved with a gear 840, and the horizontal telescopic power source 810 and the push plate 820 are both arranged in the cross bar 511, and the push plate 820 is arranged on the power output shaft of the horizontal telescopic power source 810. The horizontal telescopic power source 810 can drive the push plate 820 to move back and forth along the width direction of the reverse pool 100, and a drive rack 830 is provided in each connecting rod 512, and the drive rack 830 is engaged with all gears 840 positioned in this connecting rod 512. When specifically implemented, the horizontal telescopic power source 810 can first use a telescopic motor commonly used in the prior art.

[0056] When the MBR membrane curtain 200 needs to be twisted and kneaded, the horizontal telescopic power source 810 is started first. The horizontal telescopic power source 810 drives the push plate 820 and the gear 840 to move forward or backward repeatedly. Then, the gear 840 can drive all the support plates 410 to rotate in the forward and reverse directions, thereby easily achieving the purpose of further cleaning the MBR membrane curtain 200.

[0057] As a preferred embodiment, a V-shaped groove 711 with an upward opening can be provided on the top of the support plate 410. The membrane tubes of the MBR membrane curtain 200 can be positioned within the V-shaped groove 711. When the MBR membrane curtain 200 is overlapped on the top of the support plate 410, the membrane tubes of the MBR membrane curtain 200 can fall into the V-shaped groove 711, preventing the membrane tubes from falling off the support plate 410 during the flapping and twisting process. Of course, a baffle can also be provided on the top of the support plate 410 to prevent the membrane tubes from falling off the support plate 410.

[0058] The specific use of the above-mentioned MBR membrane bioreactor is:

[0059] During normal use, the support plate 410 is stored and hidden in the bottom plate, and the MBR membrane bioreactor is used normally. When cleaning is required, the support plate 410 is first raised by the second lifting mechanism 500, and then the top of the MBR membrane curtain 200 is driven down by the first lifting mechanism 300, so that the MBR membrane curtain 200 is folded on the support plate 410, and then the air source controller 720 is turned on to continuously inflate or deflate the air bag 710, thereby driving the flapping plate 610 to repeatedly expand or close. During the opening and closing process of the flapping component 600, the folded membrane curtain can be flapped, so that the dirt on the MBR membrane curtain 200 is flapped off, thereby achieving the purpose of cleaning.

[0060] When the MBR membrane curtain 200 needs to be twisted and kneaded, the horizontal telescopic power source 810 is started first. The horizontal telescopic power source 810 drives the push plate 820 and the gear 840 to move forward or backward repeatedly. The gear 840 can then drive all the support plates 410 to rotate in the forward and reverse directions, thereby easily achieving the purpose of further cleaning the MBR membrane curtain 200.

[0061] After cleaning is completed, the top of the MBR membrane curtain 200 is raised and reset by the first lifting mechanism 300, and the support rod is retracted into the bottom plate by the second lifting power source 520, and wastewater treatment can be carried out.

[0062] With this reactor, there is no need to manually disassemble the reactor for cleaning, thereby reducing manpower waste. At the same time, it can also avoid damage to the MBR membrane curtain 200 during the dismantling and dragging process.

[0063] 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 or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An MBR membrane bioreactor, characterized in that: include: Reverse pool; MBR membrane curtains, wherein the MBR membrane curtains are provided in a plurality, and the MBR membrane curtains are arranged uniformly along the length direction of the inversion tank and in a tilted state to one side in the inversion tank; A first lifting mechanism is provided in the inversion tank and is connected to the top ends of all the MBR membrane curtains, capable of driving the top ends of all the MBR membrane curtains to descend simultaneously so as to fold the MBR membrane curtains; A support device, wherein the bottom plate of the reverse pool is a hollow plate, and a plurality of through grooves corresponding to the folded membrane curtain and connecting the inner cavity of the reverse pool with the inner cavity of the bottom plate are opened on the bottom plate at intervals along its length direction. The support device includes multiple groups of support plate groups, and the multiple groups of support plate groups are evenly spaced along the length direction of the reverse pool in the reverse pool. Each group of the support plate groups includes multiple support plates, and the multiple support plates are linearly arranged in close proximity along the width direction of the reverse pool and can be slid up and down in the through grooves. After the support plates are raised, they can be inserted into the MBR membrane curtain in a folded state; A second lifting mechanism is provided in the bottom plate, and is used to drive all the support plates to rise and fall simultaneously, and to make the length of the support plates extending from the bottom plate less than half the length of the MBR membrane curtain; A flapping assembly, wherein each support plate is provided with a group of flapping assemblies, the flapping assemblies can be unfolded or folded, and the flapping assemblies can flap the folded film curtain during the unfolding process; and A flapping drive device is provided on the support plate and is used for driving the flapping assembly to expand or close.

2. The MBR membrane bioreactor according to claim 1, characterized in that The second lifting mechanism includes a support frame and a second lifting power source. The support frame includes a cross bar and a connecting rod. The cross bar is arranged along the length direction of the reverse pool. There are two cross bars. The two cross bars are arranged at intervals along the width direction of the reverse pool. A plurality of connecting rods are arranged at intervals between the two cross bars to form a support frame. The support plate group is connected to the corresponding connecting rods. The second lifting power source is connected to the support frame and can drive the support frame to rise and fall.

3. The MBR membrane bioreactor according to claim 2, characterized in that The flapping assembly includes a flapping plate, and each flapping plate is provided with a flapping plate on the left and right sides of each support plate, and the tops of the two flapping plates are hinged to the support plate through hinges. The flapping drive device is connected to the two flapping plates and is used to drive the two flapping plates to open or close around the hinge to flap and clean the folded MBR membrane curtain.

4. The MBR membrane bioreactor according to claim 3, characterized in that When the flapping plate is in an open state, it can drive the MBR membrane curtain supported thereon to expand outwards and abut against the adjacent MBR membrane curtain.

5. The MBR membrane bioreactor according to claim 3, characterized in that The flapping drive device includes an airbag and an air source controller. The support plate is a hollow plate. A vent is provided on the support plate to connect the inner cavity of the support plate with the outside world. The airbag is wrapped outside the support plate, and the vent is located inside the airbag. The cross bar and the connecting rod are both hollow rods and are connected to each other, and the bottom of the support plate is connected to the connecting rod. The air source controller is arranged in the inner cavity of the bottom plate and is connected to the cross bar or the connecting rod through an air pipe. The air source controller performs inflation or deflation.

6. The MBR membrane bioreactor according to claim 5, characterized in that Both side walls of the support plate are provided with avoidance grooves, and the airbags are located in the avoidance grooves.

7. The MBR membrane bioreactor according to claim 6, characterized in that The flapping plate is located in the avoidance groove when in a folded state.

8. The MBR membrane bioreactor according to claim 2, characterized in that It also includes a twisting and kneading drive device, the support plate is connected to the connecting rod through a hollow rotating shaft, the twisting and kneading drive device is arranged on the support frame, and is connected to all the rotating shafts, and is used to drive the rotating shafts to rotate clockwise and counterclockwise back and forth, thereby driving the support plate to rotate clockwise and counterclockwise to twist and knead the folded film curtain.

9. The MBR membrane bioreactor according to claim 8, characterized in that The kneading drive device includes a horizontal telescopic power source, a push plate, a driving rack and a gear. The end of each rotating shaft located in the connecting rod is fixedly sleeved with a gear, and the horizontal telescopic power source and the push plate are both arranged in the cross bar, and the push plate is arranged on the power output shaft of the horizontal telescopic power source. The horizontal telescopic power source can drive the push plate to move back and forth along the width direction of the reverse pool. A driving rack is provided in each connecting rod, and the driving rack is engaged with all the gears located in this connecting rod.

10. The MBR membrane bioreactor according to claim 1, characterized in that: The top of the support plate is provided with a V-shaped groove with an opening facing upward, and the membrane tube of the MBR membrane curtain can be located in the V-shaped groove.

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