Efficient and energy-saving MBR (Membrane Bioreactor) integrated equipment

Abstract

The invention relates to the technical field of sewage treatment, in particular to efficient and energy-saving MBR (membrane bioreactor) integrated equipment, which comprises a pretreatment unit, a biochemical reaction unit, an MBR membrane separation unit, a clean water tank and an intelligent control unit, the water outlet end of the biochemical reaction unit is connected with the water inlet end of the MBR membrane separation unit, a stirring device and an aeration device are arranged in the biochemical reaction unit, the aeration device is linked with the aeration requirement of the MBR membrane separation unit, and the intelligent control unit is electrically connected with the pretreatment unit, the biochemical reaction unit and the MBR membrane separation unit respectively. The pretreatment unit, the biochemical reaction unit, the MBR membrane separation unit, the clean water tank, the sludge treatment unit and the intelligent control unit are highly integrated, so that the problems that a traditional MBR system is dispersed in module, complex in connecting pipeline, large in occupied area and inconvenient to mount and maintain are solved, and the equipment is compact in structure and reasonable in layout.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a high-efficiency and energy-saving integrated MBR equipment. Background Technology

[0002] With the increasing severity of global water scarcity and environmental pollution, wastewater treatment and resource utilization have become crucial links in achieving sustainable development. Against this backdrop, MBR (Membrane Bioreactor) technology, as a highly efficient and reliable wastewater treatment and reuse process, has received widespread attention and application. This technology organically combines biodegradation units with membrane separation units, significantly improving effluent quality while also offering advantages such as compact structure and small footprint, making it particularly suitable for land-constrained urban wastewater treatment scenarios and demanding industrial wastewater treatment projects.

[0003] However, despite the many theoretical advantages of MBR technology, existing MBR equipment still faces a series of shortcomings in practical engineering applications. On the one hand, in terms of system integration, traditional MBR systems usually adopt a modular layout, with each module unit often set up independently and lacking overall design. This layout leads to complex connecting pipelines, long installation cycles, and a larger footprint than expected, while also increasing the difficulty of later maintenance. The problem of insufficient integration is even more pronounced in new projects that upgrade existing sewage treatment plants or have limited land.

[0004] On the other hand, existing MBR equipment has high energy consumption. The aeration system is the most energy-intensive part of MBR operation. On the one hand, it needs to provide oxygen for microbial metabolism, and on the other hand, it needs to reduce membrane fouling through airflow. However, its efficiency is generally low. In addition, the membrane cleaning process also consumes a lot of water and electricity, and may shorten the membrane life due to frequent cleaning, further increasing operating costs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a highly efficient and energy-saving integrated MBR device, which features high integration, compact structure, high energy efficiency, and low operating costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving integrated MBR device, comprising: a pretreatment unit, a biochemical reaction unit, an MBR membrane separation unit, a clear water tank, and an intelligent control unit. The effluent end of the pretreatment unit is connected to the influent end of the biochemical reaction unit, and the effluent end of the biochemical reaction unit is connected to the influent end of the MBR membrane separation unit. The biochemical reaction unit is equipped with a stirring device and an aeration device. The aeration device is used to provide oxygen for the microorganisms in the biochemical reaction unit, and the aeration device is linked to the aeration requirements of the MBR membrane separation unit. The intelligent control unit is electrically connected to the pretreatment unit, the biochemical reaction unit, and the MBR membrane separation unit respectively. The intelligent control unit is used to collect the operating parameters of each unit and adjust the operating status of each unit according to the operating parameters.

[0007] Preferably, an inlet is fixedly connected to one side of the pretreatment unit, and a filter screen is fixedly connected inside the pretreatment unit below the inlet. The filter screen is used to intercept large impurities in the sewage. A sedimentation tank is provided at the bottom of the pretreatment unit, and inclined tube packing is provided inside the sedimentation tank. An outlet is fixedly connected to the bottom of one side of the clear water tank, and a solenoid valve is fixedly connected to the top of the outlet.

[0008] Preferably, the biochemical reaction unit includes an anaerobic zone, an anoxic zone, and an aerobic zone, which are connected in sequence. The stirring device is located inside the anaerobic zone and the anoxic zone, respectively, and is used to fully mix the wastewater with the microorganisms.

[0009] Preferably, the stirring device includes a mounting plate, which is fixedly connected to the top of the anaerobic zone and the anoxic zone respectively. Several stirring motors are fixedly connected to the top of the mounting plate. The output end of the stirring motor is connected to a stirring shaft through a coupling. Several stirring blades are fixedly connected to the surface of the stirring shaft.

[0010] Preferably, the aeration device includes a blower, the output end of which is fixedly connected to an air supply pipe. The air supply pipe is divided into two paths, which extend to the aerobic zone and the interior of the MBR membrane separation unit, respectively. Several adjustable aeration heads are fixedly connected to the surface of the air supply pipe. The intelligent control unit adjusts the aeration volume by controlling the number of adjustable aeration heads and the aeration intensity.

[0011] Preferably, the MBR membrane separation unit includes a membrane module, a water pumping module, and a cleaning module. Several membrane modules are provided and evenly distributed inside the MBR membrane separation unit. The membrane modules are hollow fiber membrane modules. A water collection pipe is fixedly connected to one side of the top of the membrane module, and a backwashing pipe is fixedly connected to the other side of the top of the membrane module.

[0012] Preferably, the water pumping assembly includes a water pumping pipeline and a suction pump. One end of the water pumping pipeline is connected to a water collection pipe, and the other end of the water pumping pipeline is connected to a clear water tank. The suction pump is fixedly installed in the middle of the water pumping pipeline. The cleaning assembly includes a cleaning pipeline and a high-pressure water pump. One end of the cleaning pipeline is connected to a backwashing pipe, and the other end of the cleaning pipeline is connected to the bottom of a clean water tank. The high-pressure water pump is fixedly installed in the middle of the cleaning pipeline.

[0013] Preferably, the cleaning component is electrically connected to the intelligent control unit and is used to automatically clean the membrane module according to the operating parameters of the membrane module. The operating parameters of the membrane module include membrane flux, transmembrane pressure difference, and operating time. When the transmembrane pressure difference reaches a preset threshold or the operating time reaches a preset duration, the intelligent control unit controls the cleaning component to clean the membrane module.

[0014] Preferably, the intelligent control unit includes a data acquisition module, a data analysis module, and an execution control module. The data acquisition module is used to collect the influent flow rate and influent water quality of the pretreatment unit, the dissolved oxygen concentration, pH value, and temperature of the biochemical reaction unit, and the membrane flux and transmembrane pressure difference of the MBR membrane separation unit. The data analysis module is used to analyze the collected operating parameters and determine the operating status of the equipment. The execution control module is used to adjust the operating load of the pretreatment unit, the aeration intensity and stirring speed of the biochemical reaction unit, and the suction frequency and cleaning cycle of the MBR membrane separation unit according to the judgment results of the data analysis module.

[0015] Preferably, the equipment further includes a sludge treatment unit, which includes a sludge thickening tank and a screw press dewatering machine. The inlet of the sludge thickening tank is connected to the bottom of the sedimentation tank of the pretreatment unit, the bottom of the biochemical reaction unit, and the bottom of the MBR membrane separation unit, respectively. The sludge thickening tank is used to thicken the sludge produced by each unit. The outlet of the sludge thickening tank is connected to the inlet of the screw press dewatering machine, and the outlet of the screw press dewatering machine is connected to the pretreatment unit for the return treatment of the sludge dewatering liquid.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention integrates the pretreatment unit, biochemical reaction unit, MBR membrane separation unit, clear water tank, sludge treatment unit and intelligent control unit into one unit, which solves the problems of traditional MBR system modules being scattered, connection pipelines being complex, occupying a large area, and being inconvenient to install and maintain. The equipment has a compact structure and reasonable layout, and is particularly suitable for sewage treatment scenarios with limited land, which significantly reduces civil engineering investment and space occupation. 2. The biochemical reaction unit adopts an anaerobic-anoxic-aerobic process combination, combined with a stirring device to fully mix the sewage with microorganisms, which enhances the nitrogen and phosphorus removal effect. The MBR membrane separation unit adopts hollow fiber membrane modules, which effectively intercept suspended solids and microorganisms, ensuring that the effluent quality is stable and meets the high standard of reuse requirements. 3. The intelligent control unit collects key operating parameters such as influent flow rate, water quality, dissolved oxygen, pH, temperature, membrane flux, and transmembrane pressure difference in real time. Based on the data analysis module, the system status is judged, and the control module dynamically adjusts operating parameters such as aeration intensity, stirring speed, suction frequency, and cleaning cycle. This optimizes the system's operating status, avoids the lag and inaccuracy of traditional equipment that relies on manual experience for control, and significantly improves treatment efficiency and stability. 4. The aeration device uses a single blower to supply air to both the aerobic zone and the MBR membrane separation unit. An intelligent control unit adjusts the number and intensity of adjustable aeration heads, allowing for on-demand aeration and avoiding energy waste from excessive aeration. The cleaning component automatically triggers the cleaning program based on the membrane module's transmembrane pressure difference or operating time, using water from the clear water tank for backwashing. This reduces the frequency of chemical cleaning, extends membrane life, and lowers cleaning costs and water consumption. The sludge treatment unit efficiently concentrates and dewaters the system sludge using a sludge thickening tank and a screw press dewatering machine. The dewatered liquid is returned to the pretreatment unit for further processing, achieving sludge resource utilization and reducing sludge disposal costs. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the overall device of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall second-view structure of the device of the present invention.

[0019] Figure 3 This is a top view of the overall structure of the device of the present invention.

[0020] Figure 4 This is a schematic diagram of the preprocessing unit structure of the device of the present invention.

[0021] Figure 5 This is a schematic diagram of the stirring device structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the aeration device structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the MBR membrane separation unit structure of the device of the present invention.

[0024] Figure 8 This is a schematic diagram of the membrane module structure of the device of the present invention.

[0025] Figure 9 This is a schematic diagram of the pumping component structure of the device of the present invention.

[0026] Figure 10 This is a schematic diagram of the cleaning component structure of the device of the present invention.

[0027] Figure 11 This is a schematic diagram of the sludge treatment unit structure of the device of the present invention.

[0028] In the diagram: 1. Pretreatment unit; 101. Inlet; 102. Filter screen; 103. Inclined tube packing; 104. Sedimentation tank; 2. Biochemical reaction unit; 201. Anaerobic zone; 202. Anoxic zone; 203. Aerobic zone; 3. MBR membrane separation unit; 4. Clear water tank; 401. Outlet; 402. Solenoid valve; 5. Intelligent control unit; 6. Agitator; 601. Mounting plate; 602. Agitator motor; 603. Agitator shaft 604. Mixing blades; 7. Aeration device; 701. Blower; 702. Air supply pipe; 703. Adjustable aeration head; 8. Membrane module; 801. Water collection pipe; 802. Backwashing pipe; 9. Pumping assembly; 901. Pumping pipeline; 902. Suction pump; 10. Cleaning assembly; 1001. Cleaning pipeline; 1002. High-pressure water pump; 11. Sludge treatment unit; 1101. Sludge thickening tank; 1102. Screw press dewatering machine. Detailed Implementation

[0029] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0030] Please see Figures 1 to 3 This invention provides a first embodiment of a technical solution: a high-efficiency and energy-saving integrated MBR device, comprising: a pretreatment unit 1, a biochemical reaction unit 2, an MBR membrane separation unit 3, a clear water tank 4, and an intelligent control unit 5. The outlet of the pretreatment unit 1 is connected to the inlet of the biochemical reaction unit 2, and the outlet of the biochemical reaction unit 2 is connected to the inlet of the MBR membrane separation unit 3. The biochemical reaction unit 2 is equipped with a stirring device 6 and an aeration device 7. The aeration device 7 is used to provide oxygen for the microorganisms in the biochemical reaction unit 2, and the aeration device 7 is linked to the aeration requirements of the MBR membrane separation unit 3. The intelligent control unit 5 is electrically connected to the pretreatment unit 1, the biochemical reaction unit 2, and the MBR membrane separation unit 3 respectively. The intelligent control unit 5 is used to collect the operating parameters of each unit and adjust the operating status of each unit according to the operating parameters.

[0031] During use, the pretreatment unit 1, biochemical reaction unit 2, MBR membrane separation unit 3, clear water tank 4, sludge treatment unit 11 and intelligent control unit 5 are highly integrated into one unit, which solves the problems of traditional MBR system modules being scattered, connection pipelines being complex, occupying a large area, and being inconvenient to install and maintain. The equipment has a compact structure and reasonable layout, and is particularly suitable for sewage treatment scenarios with limited land, significantly reducing civil engineering investment and space occupation. Example

[0032] Please see Figures 4 to 6 This is the second embodiment of the present invention, which differs from the first embodiment in that: An inlet 101 is fixedly connected to one side of the pretreatment unit 1. A filter grid 102 is fixedly connected inside the pretreatment unit 1 below the inlet 101. The filter grid 102 is used to intercept large impurities in the sewage. A sedimentation tank 104 is opened at the bottom of the pretreatment unit 1. Inclined tube packing 103 is installed inside the sedimentation tank 104. An outlet 401 is fixedly connected to the bottom of one side of the clear water tank 4. A solenoid valve 402 is fixedly connected to the top of the outlet 401.

[0033] The biochemical reaction unit 2 includes an anaerobic zone 201, an anoxic zone 202 and an aerobic zone 203, which are connected in sequence. The stirring device 6 is located inside the anaerobic zone 201 and the anoxic zone 202 respectively. The stirring device 6 is used to fully mix the sewage with the microorganisms.

[0034] The stirring device 6 includes a mounting plate 601, which is fixedly connected to the top of the anaerobic zone 201 and the anoxic zone 202 respectively. Several stirring motors 602 are fixedly connected to the top of the mounting plate 601. The output end of the stirring motor 602 is connected to a stirring shaft 603 through a coupling. Several stirring blades 604 are fixedly connected to the surface of the stirring shaft 603.

[0035] The aeration device 7 includes a blower 701, and an air supply pipe 702 is fixedly connected to the output end of the blower 701. The air supply pipe 702 is divided into two paths, which extend to the interior of the aerobic zone 203 and the MBR membrane separation unit 3, respectively. Several adjustable aeration heads 703 are fixedly connected to the surface of the air supply pipe 702. The intelligent control unit 5 adjusts the aeration volume by controlling the number of adjustable aeration heads 703 that are turned on and the aeration intensity.

[0036] During operation, wastewater enters the pretreatment unit 1 through inlet 101. First, it passes through the filter screen 102 to remove large suspended solids and floating impurities, preventing blockage of subsequent equipment and pipelines. Then, the water flows downwards into the sedimentation tank 104, where the efficient settling action of the inclined tube packing 103 further removes fine suspended particles, achieving preliminary solid-liquid separation. The pretreated wastewater then enters the biochemical reaction unit 2, sequentially flowing through the anaerobic zone 201, the anoxic zone 202, and the aerobic zone 203. In the anaerobic zone 201 and the anoxic zone 202, the stirring device 6 is activated, stirring... Motor 602 drives stirring blades 604 to rotate, so that sewage, return sludge and microorganisms are fully mixed to complete the phosphorus release and denitrification process. In the aerobic zone 203, aeration device 7 is started, and blower 701 introduces oxygen into the mixed liquid through air pipe 702 and adjustable aeration head 703 to provide oxygen for aerobic microorganisms to degrade organic matter and nitrification reaction. Microorganisms decompose organic pollutants in sewage into carbon dioxide and water. Biochemical reaction unit 2 adopts an anaerobic-anoxic-aerobic process combination, combined with stirring device 6 to fully mix sewage and microorganisms, enhancing the denitrification and phosphorus removal effect.

[0037] The remaining structure is the same as that in Example 1.

[0038] Example 3, please refer to Figures 7 to 11 This is the third embodiment of the present invention, which differs from the first and second embodiments in that: The MBR membrane separation unit 3 includes a membrane module 8, a pumping module 9, and a cleaning module 10. Several membrane modules 8 are evenly distributed inside the MBR membrane separation unit 3. The membrane module 8 is a hollow fiber membrane module. A water collection pipe 801 is fixedly connected to one side of the top of the membrane module 8, and a backwashing pipe 802 is fixedly connected to the other side of the top of the membrane module 8. The pumping module 9 includes a pumping pipe 901 and a suction pump 902. One end of the pumping pipe 901 is connected to the water collection pipe 801, and the other end of the pumping pipe 901 is connected to the clear water tank 4. The suction pump 902 is fixedly installed in the middle of the pumping pipe 901.

[0039] The cleaning assembly 10 includes a cleaning pipeline 1001 and a high-pressure water pump 1002. One end of the cleaning pipeline 1001 is connected to the backwash pipe 802, and the other end of the cleaning pipeline 1001 is connected to the bottom of the clear water tank 4. The high-pressure water pump 1002 is fixedly installed in the middle of the cleaning pipeline 1001. The cleaning assembly 10 is electrically connected to the intelligent control unit 5 and is used to automatically clean the membrane module 8 according to the operating parameters of the membrane module 8. The operating parameters of the membrane module 8 include membrane flux, transmembrane pressure difference, and operating time. When the transmembrane pressure difference reaches a preset threshold or the operating time reaches a preset duration, the intelligent control unit 5 controls the cleaning assembly 10 to clean the membrane module 8.

[0040] The intelligent control unit 5 includes a data acquisition module, a data analysis module, and an execution control module. The data acquisition module is used to collect the influent flow rate and influent water quality of the pretreatment unit 1, the dissolved oxygen concentration, pH value, and temperature of the biochemical reaction unit 2, and the membrane flux and transmembrane pressure difference of the MBR membrane separation unit 3. The data analysis module is used to analyze the collected operating parameters and determine the operating status of the equipment. The execution control module is used to adjust the operating load of the pretreatment unit 1, the aeration intensity and stirring speed of the biochemical reaction unit 2, and the suction frequency and cleaning cycle of the MBR membrane separation unit 3 based on the judgment results of the data analysis module.

[0041] The equipment also includes a sludge treatment unit 11, which includes a sludge thickening tank 1101 and a screw press dewatering machine 1102. The inlet of the sludge thickening tank 1101 is connected to the bottom of the sedimentation tank 104 of the pretreatment unit 1, the bottom of the biochemical reaction unit 2, and the bottom of the MBR membrane separation unit 3, respectively. The sludge thickening tank 1101 is used to thicken the sludge produced by each unit. The outlet of the sludge thickening tank 1101 is connected to the inlet of the screw press dewatering machine 1102. The outlet of the screw press dewatering machine 1102 is connected to the pretreatment unit 1 for the return treatment of the sludge dewatering liquid.

[0042] During operation, the biochemically treated mixture flows into the MBR membrane separation unit 3. The pumping assembly 9 starts, and the suction pump 902 generates negative pressure, drawing water molecules from the mixture through the hollow fiber membrane wall of the membrane assembly 8 via the water collection pipe 801. The membrane pore size is extremely small, typically 0.1-0.4μm, which can efficiently intercept suspended solids, colloids, bacteria, and most viruses, ensuring that the effluent water quality is clear and consistently meets the standards. The purified effluent enters the clear water tank 4 through the pumping pipe 901, waiting for reuse or discharge. At the same time, another pipe of the aeration device 7 provides aeration to the membrane assembly 8. The airflow agitates the surface of the membrane fibers, effectively mitigating membrane fouling. The MBR membrane separation unit 3 uses a hollow fiber membrane assembly, which effectively intercepts suspended solids and microorganisms, ensuring that the effluent water quality consistently meets the high standard for reuse. The excess sludge from the sedimentation tank 104 of the pretreatment unit, the excess activated sludge from the biochemical reaction unit 2, and the sludge enriched in the MBR membrane separation unit 3 are all periodically discharged into the sludge thickening tank 1101. After preliminary thickening and volume reduction in the sludge thickening tank 1101, the thickened sludge enters the screw press dewatering machine 1102 for mechanical dewatering, forming a sludge cake with low water content, which is convenient for off-site disposal. The dewatering liquid produced during the dewatering process contains a high concentration of pollutants, which is returned to the inlet of the pretreatment unit 1 and enters the main treatment process for further treatment to avoid secondary pollution. The sludge treatment unit 11 uses the sludge thickening tank 1101 and the screw press dewatering machine 1102 to efficiently thicken and dewater the system sludge. The dewatering liquid is returned to the pretreatment unit 1 for further treatment, realizing the resource utilization of sludge and reducing the cost of sludge disposal. The intelligent control unit 5 monitors and optimizes the entire process in real time. Through various sensors, it collects key parameters such as influent flow rate, water quality, dissolved oxygen, pH, temperature, membrane flux, and transmembrane pressure difference. The data analysis module processes and analyzes the collected data to determine the current operating status of the system. The execution control module issues commands based on the decision results to automatically adjust equipment operation, controlling the frequency of the blower 701 and the opening of the adjustable aerator head 703 to achieve on-demand aeration and precise energy saving. It also controls the intermittent operating frequency of the suction pump 902 to balance permeate water and membrane fouling. When the transmembrane pressure difference reaches a preset threshold or the operating time expires, the cleaning component 10 is automatically activated, providing high pressure. Pump 1002 backwashes the membrane module 8 with the product water from the clear water tank 4 through the backwash pipe 802 to restore membrane performance. It also regulates the operating speed of the stirring device 6 to ensure mixing effect. The intelligent control unit 5 collects key operating parameters such as influent flow rate, water quality, dissolved oxygen, pH, temperature, membrane flux, and transmembrane pressure difference in real time. Based on the data analysis module, it judges the system status and dynamically adjusts operating parameters such as aeration intensity, stirring speed, suction frequency, and cleaning cycle through the execution control module. This optimizes the system's operating status, avoids the lag and inaccuracy of traditional equipment that relies on manual experience for control, and significantly improves treatment efficiency and stability.

[0043] The remaining structures are the same as those in Examples 1 and 2.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving integrated MBR device, comprising: The pretreatment unit (1), biochemical reaction unit (2), MBR membrane separation unit (3), clear water tank (4) and intelligent control unit (5) are characterized in that: the outlet of the pretreatment unit (1) is connected to the inlet of the biochemical reaction unit (2), the outlet of the biochemical reaction unit (2) is connected to the inlet of the MBR membrane separation unit (3), the biochemical reaction unit (2) is equipped with a stirring device (6) and an aeration device (7), the aeration device (7) is used to provide oxygen for the microorganisms in the biochemical reaction unit (2), and the aeration device (7) is linked with the aeration requirements of the MBR membrane separation unit (3), the intelligent control unit (5) is electrically connected to the pretreatment unit (1), the biochemical reaction unit (2) and the MBR membrane separation unit (3) respectively, and the intelligent control unit (5) is used to collect the operating parameters of each unit and adjust the operating status of each unit according to the operating parameters.

2. The high-efficiency and energy-saving integrated MBR equipment according to claim 1, characterized in that: An inlet (101) is fixedly connected to one side of the pretreatment unit (1). A filter grid (102) is fixedly connected inside the pretreatment unit (1) below the inlet (101). The filter grid (102) is used to intercept large impurities in the sewage. A sedimentation tank (104) is opened at the bottom of the pretreatment unit (1). Inclined tube packing (103) is installed inside the sedimentation tank (104). An outlet (401) is fixedly connected to the bottom of one side of the clear water tank (4). A solenoid valve (402) is fixedly connected to the top of the outlet (401).

3. The high-efficiency and energy-saving integrated MBR equipment according to claim 1, characterized in that: The biochemical reaction unit (2) includes an anaerobic zone (201), an anoxic zone (202) and an aerobic zone (203), which are connected in sequence. The stirring device (6) is located inside the anaerobic zone (201) and the anoxic zone (202), respectively. The stirring device (6) is used to fully mix the sewage with the microorganisms.

4. The high-efficiency and energy-saving integrated MBR equipment according to claim 3, characterized in that: The stirring device (6) includes a mounting plate (601), which is fixedly connected to the top of the anaerobic zone (201) and the anoxic zone (202) respectively. Several stirring motors (602) are fixedly connected to the top of the mounting plate (601). The output end of the stirring motor (602) is connected to a stirring shaft (603) through a coupling. Several stirring blades (604) are fixedly connected to the surface of the stirring shaft (603).

5. The high-efficiency and energy-saving integrated MBR equipment according to claim 4, characterized in that: The aeration device (7) includes a blower (701), and the output end of the blower (701) is fixedly connected to an air supply pipe (702). The air supply pipe (702) is divided into two paths and extends to the interior of the aerobic zone (203) and the MBR membrane separation unit (3), respectively. Several adjustable aeration heads (703) are fixedly connected to the surface of the air supply pipe (702). The intelligent control unit (5) adjusts the aeration volume by controlling the number of adjustable aeration heads (703) that are turned on and the aeration intensity.

6. The high-efficiency and energy-saving integrated MBR equipment according to claim 1, characterized in that: The MBR membrane separation unit (3) includes a membrane module (8), a pumping module (9), and a cleaning module (10). Several membrane modules (8) are provided and evenly distributed inside the MBR membrane separation unit (3). The membrane module (8) is a hollow fiber membrane module. A water collection pipe (801) is fixedly connected to one side of the top of the membrane module (8), and a backwashing pipe (802) is fixedly connected to the other side of the top of the membrane module (8).

7. The high-efficiency and energy-saving integrated MBR equipment according to claim 6, characterized in that: The pumping assembly (9) includes a pumping pipe (901) and a suction pump (902). One end of the pumping pipe (901) is connected to a water collection pipe (801), and the other end of the pumping pipe (901) is connected to a clear water tank (4). The suction pump (902) is fixedly installed in the middle of the pumping pipe (901). The cleaning assembly (10) includes a cleaning pipeline (1001) and a high-pressure water pump (1002). One end of the cleaning pipeline (1001) is connected to the backwash pipe (802), and the other end of the cleaning pipeline (1001) is connected to the bottom of the clear water tank (4). The high-pressure water pump (1002) is fixedly installed in the middle of the cleaning pipeline (1001).

8. The high-efficiency and energy-saving integrated MBR equipment according to claim 7, characterized in that: The cleaning component (10) is electrically connected to the intelligent control unit (5) and is used to automatically clean the membrane module (8) according to the operating parameters of the membrane module (8). The operating parameters of the membrane module (8) include membrane flux, transmembrane pressure difference and operating time. When the transmembrane pressure difference reaches a preset threshold or the operating time reaches a preset duration, the intelligent control unit (5) controls the cleaning component (10) to clean the membrane module (8).

9. The high-efficiency and energy-saving integrated MBR equipment according to claim 1, characterized in that: The intelligent control unit (5) includes a data acquisition module, a data analysis module, and an execution control module. The data acquisition module is used to collect the influent flow rate and influent water quality of the pretreatment unit (1), the dissolved oxygen concentration, pH value, and temperature of the biochemical reaction unit (2), and the membrane flux and transmembrane pressure difference of the MBR membrane separation unit (3). The data analysis module is used to analyze the collected operating parameters and determine the operating status of the equipment. The execution control module is used to adjust the operating load of the pretreatment unit (1), the aeration intensity and stirring speed of the biochemical reaction unit (2), and the suction frequency and cleaning cycle of the MBR membrane separation unit (3) according to the judgment result of the data analysis module.

10. The high-efficiency and energy-saving integrated MBR equipment according to claim 1, characterized in that: The equipment also includes a sludge treatment unit (11), which includes a sludge thickening tank (1101) and a screw press dewatering machine (1102). The inlet of the sludge thickening tank (1101) is connected to the bottom of the sedimentation tank (104) of the pretreatment unit (1), the bottom of the biochemical reaction unit (2), and the bottom of the MBR membrane separation unit (3), respectively. The sludge thickening tank (1101) is used to thicken the sludge produced by each unit. The outlet of the sludge thickening tank (1101) is connected to the inlet of the screw press dewatering machine (1102). The outlet of the screw press dewatering machine (1102) is connected to the pretreatment unit (1) for the return treatment of the sludge dewatering liquid.

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