Split-flow vertical water treatment equipment based on MABR membrane

Abstract

The invention discloses split-flow vertical water treatment equipment based on an MABR (Membrane Aerated Baffled Reactor) membrane, which belongs to the technical field of water treatment, adopts a strategy of upper and lower static zoning and fluid split-flow disturbance optimization, and is matched with intermittent and low-intensity fluid pulse and gas pulse to realize mass transfer enhancement and membrane pollution control. Specifically, a reactor is divided into an upper reaction zone and a lower anaerobic zone by using a double-layer flow guide table, a flow distribution structure is additionally arranged in the lower anaerobic zone, sludge slides down from the top of a cylinder wall in a film shape to form a water curtain, sewage is jetted upwards from two sides of the bottom to form efficient countercurrent contact, phosphorus release and partial hydrolytic acidification are carried out, and the sludge is discharged. Treated sewage is conveyed upwards under the drainage effect of the double-layer flow guide table, water flow is evenly distributed upwards through the flow distribution guide mechanism, strong turbulent flow is generated, the hydraulic shear force on a biological membrane on the outer surface of the MABR membrane wire set is improved, stable formation and efficient cooperation of an aerobic zone (near membrane side) and an anoxic zone (far membrane side) are facilitated, and the synchronous nitrification and denitrification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, more particularly to a split vertical water treatment equipment based on MABR membrane. BACKGROUND

[0002] MABR is a new type of water treatment technology combining membrane aeration technology and immobilized biofilm technology, in which oxygen and pollutants are mass transferred from both sides of the biofilm in the form of convective diffusion and gradually consumed, finally completing the removal of pollutants.

[0003] Under long-term and high-pollution environment use, the gas permeable membrane itself is not in an active state, so membrane clogging and hardening still occur, affecting oxygen transmission efficiency and reducing the overall performance of the reactor. In view of the problem of oxygen transmission obstruction on the surface of the oxygen permeable membrane, Chinese patent CN120383389A proposes to switch the double modes of the oxygen permeable membrane by the movement assembly to promote the circulation of the oxygen permeable membrane and the bottom water flow injection to strengthen mass transfer and prevent membrane pollution. However, from the theoretical and engineering practice, this scheme has several major defects: 1. The movement assembly makes the entire membrane assembly undergo a large amount of "circulation twisting" and "circulation swinging", which is essentially a violent mechanical stirring. This stirring will inevitably involve air (oxygen) into the mixed liquid, producing a large amount of bubbles. 2. The bottom agitation seriously destroys the anaerobic environment. 3. The design contains a large number of precise mechanical movement parts such as electric telescopic rods, gear racks, adjustment balls, ball seats, corrugated hoses, and slide rods, which are easily corroded, blocked, jammed, and mechanically failed due to long-term immersion in complex and corrosive sewage.

[0004] Therefore, in view of the actual problems in the prior art, a split vertical water treatment equipment based on MABR membrane is proposed. SUMMARY

[0005] The present application aims to solve the problems of existing water treatment technology and provides a split vertical water treatment equipment based on MABR membrane compared with the prior art.

[0006] The purpose of the present application can be achieved by the following technical scheme: a split vertical water treatment equipment based on MABR membrane, comprising a vertical cabinet and a double-layer flow guide table, the double-layer flow guide table separates the vertical cabinet into an upper reaction zone and a lower anaerobic zone, a plurality of MABR membrane wire groups are fixedly installed in the upper reaction zone, the double-layer flow guide table comprises an upper flow guide table and a lower flow guide table installed above and below, a plurality of conical grooves corresponding to the positions of the MABR membrane wire groups and having an upper wide and lower narrow through type are opened on the upper flow guide table, and a split guide mechanism is embedded and installed in the conical groove and is docked at the bottom of the MABR membrane wire group. The lower flow guide platform is internally provided with an anaerobic reaction cavity serving as a lower anaerobic zone, a flow distribution structure is installed inside the anaerobic reaction cavity, a sludge backflow pipe is embedded and installed at the top of the flow distribution structure, sludge nozzles are installed on the left and right sides of the sludge backflow pipe and arranged downward along the curved surface of the flow distribution structure, water inlet pipes are installed on the bottom of the flow distribution structure and are in communication with each other, and sewage nozzles are installed on the end wall and arranged upward along the curved surface of the flow distribution structure; The shunt guide mechanism comprises a conical flow guide cover nested in the conical groove, a shunt component fixedly installed in the conical flow guide cover and forming a conical space with the conical flow guide cover, and a flow guide platform fixed at the top end of the shunt component and butted to the bottom of the MABR membrane filament group, wherein the conical flow guide cover, the shunt component and the flow guide platform form a shearing flow channel.

[0007] Further, the cross section of the anaerobic reaction cavity is in a triangular structure, the bottom of the anaerobic reaction cavity is an arc surface with a downwardly concave middle portion, the top of the anaerobic reaction cavity is in communication with the plurality of conical grooves and the transverse groove, and the left and right end walls of the anaerobic reaction cavity are provided with upflow grooves corresponding to the positions of the conical flow guide cover and extending to both sides.

[0008] Further, the flow distribution structure comprises a hollow cylinder fixedly installed at the middle portion of the inner side of the anaerobic reaction cavity, V-shaped flow distribution plates fixedly installed on the left and right sides of the hollow cylinder and matched with the triangular structure surface of the anaerobic reaction cavity, and the upper and lower ends of the V-shaped flow distribution plates are connected to the upper and lower arc curved surfaces of the hollow cylinder, and one end of the sludge backflow pipe extending to the outside of the cabinet is externally connected to a sludge backflow pump.

[0009] Further, the MABR membrane filament group comprises a central support cylinder and a membrane filament layer spirally wound on the outside of the central support cylinder, which strengthens mass transfer, controls membrane pollution and promotes simultaneous nitrification and denitrification.

[0010] Further, the shunt component comprises a conical flow guide part and shunt plates annularly distributed on the outer end wall thereof and matched with the inner wall of the conical flow guide cover, a plurality of shunt plates separate the conical space into a plurality of shunt cavities, and a plurality of flow guide sub-plates are distributed between adjacent shunt plates and located at the upper end portions of the shunt cavities, a plurality of cyclone grooves corresponding to the MABR membrane filament layer are provided in the inside of the flow guide platform and in communication with the inside of the shunt cavities, and the cyclone grooves are in a conical structure rotating and cutting upward.

[0011] Further, the cabinet is externally connected to a gas supply pipe, the inner end of the gas supply pipe penetrates the plurality of flow guide platforms in sequence and extends to the inner wall on the other side of the cabinet, a plurality of gas distribution pipes are butted to the gas supply pipe and respectively extend to the inside of the MABR membrane filament group, and a transverse groove is provided in the middle portion of the upper flow guide platform and penetrates upward and downward and corresponds to the position of the gas supply pipe.

[0012] Further, a plurality of flow guide sleeves corresponding to the positions of the transverse grooves are also embedded and installed on the gas supply pipe, and a plurality of sawtooth grooves penetrating upward and downward are provided on the left and right sides of the flow guide sleeves.

[0013] Further, the water inlet pipe and the air supply pipe outer end are respectively embedded with pulse valve two and pulse valve one, and a pulse generator (such as a pulse valve) is arranged at the water inlet end and the membrane assembly air end, by periodically changing the water flow or aeration pressure, by periodic acceleration and deceleration, the boundary layer can be effectively disturbed, and a more global and simple "vibration" effect is realized.

[0014] Further, a plurality of water collecting weir grooves are fixedly installed on the top of the cabinet, the water collecting weir grooves are externally penetrated to the outside of the cabinet top and are connected with the sedimentation tank through the drainage pipe, the sludge backflow pipe is communicated with the sedimentation tank, and is used for realizing sludge backflow after sedimentation, and the bottom of the anaerobic reaction cavity is also communicated with the sedimentation tank through the circulating pipe, and realizes the circulation supply and discharge of sludge in the anaerobic reaction cavity.

[0015] Compared with the prior art, the advantages of the present application are that: 1. The upper and lower static zoning + optimized fluid shunt disturbance strategy is adopted, and is matched with intermittent and low-intensity fluid pulse and gas pulse, so that mass transfer enhancement and membrane pollution control are realized, and specifically, the reactor is divided into an upper reaction zone and a lower anaerobic zone by using a double-layer flow guide table, a flow distribution structure is additionally arranged in the lower anaerobic zone, sludge slides down from the top of the cylinder wall in a film shape to form a "water curtain", sewage is sprayed upwards from the bottom of two sides, high-efficiency countercurrent contact is formed, mass transfer area and time are increased, phosphorus release and partial hydrolysis acidification are carried out, and the treated sewage is transported upwards under the guidance of the double-layer flow guide table, the water flow is spontaneously guided by the shunt guide mechanism to generate strong turbulent flow, the hydraulic shear force on the biological membrane outside the MABR membrane wire group is improved, and the stable formation and efficient cooperation of the aerobic zone (near the membrane side) and the anoxic zone (far from the membrane side) are beneficial, and the efficiency of simultaneous nitrification and denitrification is improved.

[0016] 2. Based on the above content, a pulse generator (such as a pulse valve) is arranged at the water inlet end and the membrane assembly air end, the water flow or aeration pressure is periodically changed, specifically, pulse water flow is intermittently provided, the water flow entering the anaerobic zone forms a strong pulse, and the bottom sludge is stirred, pulse air flow is intermittently provided, the biological membrane boundary layer can be effectively disturbed by acceleration and deceleration, a "vibration" effect is realized, and the shear force of the pulse water flow effectively scours the biological membrane. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall external structure of the present application; Figure 2 It is a partial sectional view of the present application; Figure 3 It is an internal sectional view of the cabinet of the present application Figure 1 ; Figure 4 It is an internal sectional view of the cabinet of the present application Figure 2 ; Figure 5 This is an exploded view of the internal structure of the cabinet of the present invention; Figure 6 This is a schematic diagram of the structure of the MABR membrane fiber assembly of the present invention; Figure 7 This is a schematic diagram of the structure at the junction of the flow splitter and the flow guide platform of the present invention; Figure 8 This is a schematic diagram showing the separation of the flow splitter component and the flow guide platform of the present invention; Figure 9 This is a cross-sectional view of the side of the cabinet of the present invention.

[0018] Explanation of the labels in the diagram: 1. Vertical cabinet; 2. Upper guide platform; 201. Conical groove; 202. Horizontal groove; 3. Lower guide platform; 4. MABR membrane fiber assembly; 5. Conical guide hood; 6. Diverter assembly; 61. Conical guide section; 62. Diverter plate; 63. Guide plate segment; 7. Guide platform; 701. Swirl channel; 8. Air supply pipe; 801. Pulse valve one; 802. Guide sleeve; 9. Hollow cylinder; 901. V-shaped flow distribution plate; 10. Water inlet pipe; 101. Pulse valve two; 11. Sludge return pipe; 12. Water collection weir; 13. Sedimentation tank. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Example 1: This invention discloses a split-flow vertical water treatment device based on a MABR membrane. Please refer to [link / reference]. Figures 1-2 and Figure 6 It includes a vertical cabinet 1 and a double-layer flow guide platform installed at its lower end, which divides the interior of the vertical cabinet 1 into an upper reaction zone and a lower anaerobic zone. The upper and lower static partitions are adopted to avoid water flow interference and oxygen diffusion to the lower anaerobic zone. Multiple MABR membrane fiber groups 4 are fixedly installed in the upper reaction zone. The MABR membrane fiber group 4 includes a central support cylinder and a membrane fiber layer that is spirally wound around the outside of the central support cylinder.

[0021] Please see Figures 2-5 The double-layer flow guide platform includes an upper flow guide platform 2 and a lower flow guide platform 3 installed at the top and bottom. The upper flow guide platform 2 has multiple conical grooves 201 that correspond to the position of the MABR membrane fiber assembly 4 and are wider at the top and narrower at the bottom. A flow diversion guide mechanism that is connected to the bottom of the MABR membrane fiber assembly 4 is embedded in the conical groove 201. The diversion and guiding mechanism includes a conical guide shroud 5 nested in a conical groove 201, a diversion component 6 fixedly installed inside the conical guide shroud 5 to form a conical space therebetween, and a guide platform 7 fixedly attached to the bottom of the MABR membrane fiber assembly 4 at the top of the diversion component 6. The conical guide shroud 5, the diversion component 6 and the guide platform 7 constitute a shearing flow channel. Please see Figure 3 and Figure 9 The lower guide platform 3 has an anaerobic reaction chamber inside, which serves as the lower anaerobic zone. The anaerobic reaction chamber is equipped with a flow distribution structure. A sludge return pipe 11 is embedded in the top of the flow distribution structure. Sludge nozzles arranged downward along the curved surface of the flow distribution structure are installed on both sides of the sludge return pipe 11. Water inlet pipes 10 are installed on both sides of the bottom of the flow distribution structure and are interconnected. Wastewater nozzles arranged upward along the curved surface of the flow distribution structure are installed on their end walls. The anaerobic reaction chamber has a triangular cross-section and a concave arc-shaped bottom. The top of the anaerobic reaction chamber is connected to multiple conical grooves 201 and transverse grooves 202. The left and right end walls of the anaerobic reaction chamber are provided with rising troughs that correspond to the positions of the conical guide hoods 5 and extend to both sides, where the influent and return sludge are mixed. The flow distribution structure includes a hollow cylinder 9 fixedly installed in the middle of the inner side of the anaerobic reaction chamber. V-shaped flow distribution plates 901 adapted to the triangular structure of the anaerobic reaction chamber are fixedly installed on both the left and right sides of the hollow cylinder 9. The upper and lower ends of the V-shaped flow distribution plates 901 are connected to the upper and lower arc surfaces of the hollow cylinder 9. The sludge return pipe 11 extends to one end of the cabinet 1 and is connected to a sludge return pump. Powered by a sludge return pump, sludge is sprayed at a high velocity and a certain angle onto the curved surfaces on both sides of the flow distribution structure in the lower anaerobic zone. The sludge slides down the top cylinder wall in a thin film, forming a uniform "water curtain" rather than concentrating on a single point. Simultaneously, wastewater enters from both sides at the bottom and rises naturally. The two flow in opposite directions, generating abundant turbulence and shear force, creating an ideal anaerobic flow pattern. This promotes the breaking down of sludge flocs and their rapid and thorough mixing with wastewater, greatly increasing the mass transfer area and time. The mixing effect is far superior to mechanical stirring, while not disrupting the anaerobic environment and facilitating the flow environment for anaerobic phosphorus release and denitrification.

[0022] The treated wastewater is transported upwards by the double-layer guide platform. The water flows upwards through the shear channel of the diversion guide mechanism, generating strong turbulence. This increases the hydraulic shear force on the biofilm on the outer surface of the MABR membrane fiber group 4, which is conducive to the stable formation and efficient cooperation of the near-membrane side in the aerobic zone and the far-membrane side in the anoxic zone. The simultaneous nitrification and denitrification (SND) efficiency is extremely high.

[0023] Please see Figure 4 , Figure 5The cabinet 1 is connected to an external air supply pipe 8. The inner end of the air supply pipe 8 passes through multiple flow guides 7 and extends to the inner wall of the other side of the cabinet 1. Multiple air distribution pipes are connected to the air supply pipe 8, which extend into the MABR membrane fiber assembly 4.

[0024] Pulse valve 101 and pulse valve 801 are respectively installed at the outer ends of the water inlet pipe 10 and the air supply pipe 8. A pulse generator such as a pulse valve is added to the water inlet end and the air end of the membrane module. By periodically changing the water inlet flow rate or aeration pressure, the boundary layer can be effectively disturbed by periodic acceleration and deceleration, so as to achieve a more global and simpler "vibration" effect.

[0025] Please see Figure 1 Multiple water collection weirs 12 are fixedly installed on the top of the cabinet 1. The outer ends of the water collection weirs 12 extend to the outer side of the top of the cabinet 1 and are connected to the sedimentation tank 13 through the drain pipe. The sludge return pipe 11 is connected to the sedimentation tank 13. A sludge return pump is installed on the sludge return pipe 11. The sludge return pump is used to return the sludge from the sedimentation tank 13 to the lower anaerobic zone to realize the return of the settled sludge. The bottom of the anaerobic reaction chamber is also connected to the sedimentation tank 13 through a circulation pipe to realize the circulation supply and discharge of sludge inside the anaerobic reaction chamber.

[0026] Example 2: Based on Example 1, this example provides further explanation of the diversion and guiding mechanism and the upward path of the water flow: Please see Figures 3-5 and Figures 7-9 The diversion assembly 6 includes a conical guide section 61 and diversion plates 62 that are annularly distributed on its outer end wall and are attached to the inner wall of the conical guide shroud 5. Multiple diversion plates 62 divide the conical space into multiple diversion cavities, and multiple guide plates 63 located at the upper end of the diversion cavity are distributed between adjacent diversion plates 62. Multiple swirling grooves 701 with the inner sides of the diversion cavities connected and corresponding to the MABR membrane fiber layer are opened inside the guide platform 7. The swirling grooves 701 have an upward spiral conical structure. Specifically, the conical guide shroud 5, the diversion assembly 6, and the guide platform 7 are combined through the multi-component flow plate 62, the flow guide plate 63, and the swirl channel 701 to form an annular multi-branch shear channel. The water flow is guided upward from the bottom of the conical guide shroud 5 and diverted upward through multiple diversion chambers. Part of the water flow is directly introduced into the swirl channel 701 through the inner side of the diversion chamber and acts evenly on the bottom of the MABR membrane fiber layer. The water flow actively washes the membrane surface and the pollutants are forcibly transported by convection. Another part of the water flow is vertically upward through the outer side of the diversion chamber and acts evenly on the circumferential direction of the entire MABR membrane fiber layer. The diversion and guiding mechanism spontaneously guides the water flow to impact upward evenly, generating strong turbulence and increasing the hydraulic shear force on the biofilm on the outer surface of the MABR membrane fiber assembly 4. Please see Figures 4-6The upper guide platform 2 has a horizontal groove 202 that runs vertically through the middle and corresponds to the position of the air supply pipe 8. The air supply pipe 8 is also fitted with multiple guide sleeves 802 that correspond to the positions of the horizontal grooves 202. Multiple vertically through serrated grooves are opened on both the left and right sides of the guide sleeves 802. Some sewage is impacted upwards. The design is non-smooth serrated, corrugated, or has guide blades with specific angles. The water flows through the narrow horizontal grooves 202 and through the non-smooth serrated grooves to optimize the flow channel shape and spontaneously guide the water flow to generate strong turbulence. It is then introduced into the anoxic area away from the MABR membrane fiber group 4 to enhance the denitrification reaction.

[0027] In summary, the strategy of upper and lower static partitioning combined with optimized fluid diversion disturbance, along with intermittent, low-intensity fluid and gas pulses, achieves enhanced mass transfer and membrane fouling control. Specifically, a double-layer guide platform is used to divide the reactor into an upper reaction zone and a lower anaerobic zone. A flow distribution structure is added inside the lower anaerobic zone, where sludge slides down the top of the cylinder wall in a thin film to form a "water curtain," and wastewater is sprayed upwards from both sides of the bottom to form a highly efficient countercurrent contact, increasing the mass transfer area and time, and enabling phosphorus release and partial hydrolysis acidification. The treated wastewater is transported upward under the guidance of the double-layer guide platform. The water flow is spontaneously guided by the diversion and guiding mechanism to generate strong turbulence, which increases the hydraulic shear force on the biofilm on the outer surface of the MABR membrane fiber group 4. This is conducive to the stable formation and efficient cooperation of the aerobic zone (near membrane side) and the anoxic zone (far membrane side), and improves the efficiency of simultaneous nitrification and denitrification. By applying intermittent, low-intensity fluid and gas pulses to disturb the reaction environment in the anaerobic zone and the membrane surface boundary layer, all complex mechanisms that drive the membrane module to swing and twist are eliminated while minimizing the generation of bubbles.

[0028] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A split-flow vertical water treatment device based on a MABR membrane, comprising a vertical cabinet (1) and a double-layer flow guide platform, characterized in that: The double-layer flow guide platform divides the interior of the cabinet (1) into an upper reaction zone and a lower anaerobic zone. Multiple MABR membrane fiber groups (4) are fixedly installed in the upper reaction zone. The double-layer flow guide platform includes an upper flow guide platform (2) and a lower flow guide platform (3) installed vertically. Multiple conical grooves (201) with the upper flow guide platform (2) corresponding to the position of the MABR membrane fiber group (4) and being wider at the top and narrower at the bottom are provided on the upper flow guide platform (2). A flow diversion and guiding mechanism is installed inside the conical grooves (201). The lower guide platform (3) has an anaerobic reaction chamber inside which serves as the lower anaerobic zone. A flow distribution structure is installed inside the anaerobic reaction chamber. A sludge return pipe (11) is embedded in the top of the flow distribution structure. Sludge nozzles arranged downward along the curved surface of the flow distribution structure are installed on both the left and right sides of the sludge return pipe (11). Water inlet pipes (10) are connected to each other on both sides of the bottom of the flow distribution structure. Sewage nozzles arranged upward along the curved surface of the flow distribution structure are installed on their end walls. The diversion and guiding mechanism includes a conical guide shroud (5) nested in a conical groove (201), a diversion component (6) that forms a conical space between the conical guide shroud (5) and the diversion component (6) is fixedly installed inside the conical guide shroud (5), and a guide platform (7) that is connected to the bottom of the MABR membrane fiber assembly (4) is fixed at the top of the diversion component (6). The conical guide shroud (5), the diversion component (6) and the guide platform (7) form a shear flow channel.

2. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: The anaerobic reaction chamber has a triangular cross-section, and its top is connected to multiple conical grooves (201) and transverse grooves (202).

3. The split-flow vertical water treatment equipment based on MABR membrane according to claim 2, characterized in that: The flow distribution structure includes a hollow cylinder (9) fixedly installed in the middle of the inner side of the anaerobic reaction chamber. V-shaped flow distribution plates (901) adapted to the triangular structure of the anaerobic reaction chamber are fixedly installed on both the left and right sides of the hollow cylinder (9). The upper and lower ends of the V-shaped flow distribution plates (901) are connected to the upper and lower arc surfaces of the hollow cylinder (9). The sludge return pipe (11) extends to one end of the cabinet (1) and is connected to the sludge return pump.

4. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: The MABR membrane fiber assembly (4) includes a central support cylinder and a membrane fiber layer wound in a spiral manner around the outside of the central support cylinder.

5. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: The diversion assembly (6) includes a conical guide section (61) and diversion plates (62) distributed in a ring on its outer end wall and attached to the inner wall of the conical guide shroud (5). Multiple diversion plates (62) divide the conical space into multiple diversion cavities, and multiple guide plates (63) located at the upper end of the diversion cavity are distributed between adjacent diversion plates (62). The guide platform (7) has multiple swirling grooves (701) with the inner sides of the diversion cavities connected and corresponding to the MABR membrane fiber layer. The swirling grooves (701) have an upward spiral-cut conical structure.

6. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: The cabinet (1) is connected to an air supply pipe (8). The inner end of the air supply pipe (8) passes through multiple guide platforms (7) and extends to the inner wall of the other side of the cabinet (1). Multiple air distribution pipes that extend into the MABR membrane fiber assembly (4) are connected to the air supply pipe (8). A horizontal groove (202) is opened in the middle of the upper guide platform (2) and runs through it from top to bottom and corresponds to the position of the air supply pipe (8).

7. The split-flow vertical water treatment device based on a MABR membrane according to claim 6, characterized in that: The gas supply pipe (8) is also fitted with multiple guide sleeves (802) corresponding to the positions of the horizontal grooves (202). Multiple vertically penetrating sawtooth grooves are opened on both the left and right sides of the guide sleeves (802).

8. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: The water inlet pipe (10) and the air supply pipe (8) are respectively fitted with pulse valve two (101) and pulse valve one (801) at their outer ends.

9. The split-flow vertical water treatment equipment based on MABR membrane according to claim 1, characterized in that: Multiple water collection weirs (12) are fixedly installed on the top of the cabinet (1). The outer ends of the water collection weirs (12) extend to the outer side of the top of the cabinet (1) and are connected to a sedimentation tank (13) through a drain pipe.

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