Sewage treatment equipment and method suitable for industrial sewage treatment

Abstract

The invention discloses sewage treatment equipment and method suitable for industrial sewage treatment, and belongs to the field of sewage treatment. According to the technical scheme, the sewage treatment equipment suitable for industrial sewage treatment comprises an MBR membrane filtering unit, the MBR membrane filtering unit comprises a filtering tank, a first winding and unwinding assembly and a second winding and unwinding assembly are rotationally arranged at the upper end of the filtering tank, two rows of reversing rollers are vertically arranged in the filtering tank at intervals, and the two rows of reversing rollers are arranged in the filtering tank at intervals. An MBR membrane piece is wound on the first winding and unwinding assembly; according to the invention, by arranging the slidable frame and the adjusting rod, the dynamic adjustment of the membrane spacing is realized; by arranging a cleaning roller and a rotating roller, the cleaning efficiency is improved; by arranging the winding and unwinding assembly, the membrane replacement process is simplified; the aeration mechanism and the ozone oxidation unit are arranged, so that the filtering efficiency is optimized. The device has the advantages that the membrane spacing can be dynamically adjusted, the cleaning efficiency is improved, the membrane replacement process is simplified, and the filtering efficiency is optimized.

Description

Technical Field

[0001] The invention belongs to the field of sewage treatment, and in particular relates to sewage treatment equipment and a method suitable for industrial sewage treatment. Background Art

[0002] As the demand for industrial wastewater treatment becomes increasingly stringent, membrane bioreactor (MBR) technology has been widely used in the field of industrial wastewater treatment due to its high efficiency in intercepting pollutants and excellent effluent quality. However, the core component of the MBR system, the membrane unit, faces prominent problems such as severe membrane pollution, low cleaning efficiency, complex replacement and maintenance, and attenuation of filtration efficiency in long-term operation, which restricts its large-scale industrial application.

[0003] The dynamic contradiction between membrane fouling and filtration efficiency is one of the main challenges facing the MBR system. The concentration of suspended solids in industrial wastewater fluctuates significantly. The traditional MBR system adopts a fixed membrane spacing design, which is difficult to adapt to changes in water quality. When the concentration of suspended solids in the inlet water surges, the fixed membrane spacing can easily cause pollutants to accumulate quickly on the membrane surface, forming a dense filter cake layer, causing a sudden drop in flux; while at low concentrations, excessive membrane spacing cannot fully utilize the membrane surface area, reducing filtration efficiency. The existing technology lacks the ability to dynamically adjust the membrane spacing, resulting in the system's weak ability to resist shock loads under complex water quality and poor operating stability.

[0004] The limitations of membrane cleaning technology are also an important issue. Conventional physical cleaning (such as nylon brush scrubbing) requires shutdown and disassembly of membrane components, and has a low degree of automation; online chemical cleaning is prone to secondary pollution and has high requirements for the corrosion resistance of membrane materials. Some improvement plans attempt to use mobile cleaning rollers for contact cleaning, but lack a dynamic fit adjustment mechanism with the membrane surface, which can easily lead to cleaning blind spots or mechanical damage to the membrane surface, making it difficult to balance cleaning efficiency and membrane life.

[0005] The membrane replacement cost and downtime loss are another urgent problem to be solved. Traditional MBR membrane components are mostly fixed installations. When the pollution is serious, they need to be replaced as a whole, which causes the system to shut down for a long time and affects continuous production. Although some designs use a winding membrane structure to replace the local pollution section, it lacks the dynamic adjustment function of the membrane surface tension. During the replacement process, the membrane is prone to wrinkles and tears due to looseness or over-tightening, which reduces the effective filtration area of ​​the membrane.

[0006] Continuous optimization of filtration efficiency is also a difficult problem. Existing MBR systems mostly rely on fixed membrane assembly layouts and are unable to optimize membrane spacing in real time according to suspended matter concentration. Studies have shown that, under the same aeration intensity, reducing membrane spacing can enhance membrane surface shear force and delay pollutant deposition, but membrane spacing adjustment in existing technologies mostly relies on manual intervention or mechanical fixed gears, lacking closed-loop feedback control with water quality parameters. For example, some patents propose to change the spacing between membrane groups by manually adjusting the bracket, but the response is delayed and continuous and precise control cannot be achieved; other patents use spring preload to maintain membrane tension, but it is difficult to adapt to the dynamic changes in suspended matter concentration, resulting in increased membrane pollution under high-load conditions.

[0007] The main defects of the existing technology include: the static membrane spacing design cannot dynamically adjust the membrane spacing according to the suspended solids concentration, resulting in accelerated membrane pollution at high concentrations and waste of filtration efficiency at low concentrations; the adjustment mechanism is extensive, and the existing spacing adjustment relies on manual or simple mechanical structures, lacks intelligent linkage with water quality sensors, and the adjustment accuracy and real-time performance are insufficient; there is a lack of coordinated control, and the membrane spacing adjustment and aeration cleaning and oxidation processes operate independently, failing to form a multi-parameter coordinated optimization mechanism, which limits the improvement of the overall treatment efficiency.

[0008] In view of the above problems, the existing technology needs to be improved urgently. Summary of the invention

[0009] The present invention provides a sewage treatment device and method suitable for industrial sewage treatment to solve at least one of the above technical problems.

[0010] The technical solution adopted by the present invention is:

[0011] A sewage treatment equipment suitable for industrial sewage treatment includes an MBR membrane filtration unit, the MBR membrane filtration unit includes a filter tank, a first retractable assembly and a second retractable assembly are rotatably arranged on the upper end of the filter tank, two rows of reversing rollers are vertically arranged in the filter tank, an MBR membrane is wound on the first retractable assembly, the MBR membrane passes through the upper and lower rows of reversing rollers in sequence and then is wound with the second retractable assembly, a transverse guide rail is arranged in the filter tank, a frame is slidably connected in the transverse guide rail, a plurality of adjustment rods are arranged on the frame at intervals, the MBR membrane passes through the gap between the two adjacent groups of adjustment rods while passing through the upper and lower rows of reversing rollers.

[0012] Preferably, a third shell is symmetrically arranged on the upper part of the filter tank, a cleaning roller is rotatably connected in the third shell, the outer wall of the cleaning roller is provided with nylon bristles, the side wall of the third shell is provided with an arc groove, a rotating roller is slidably connected in the arc groove, the MBR membrane passes through the rotating roller, and the rotating roller slides in the arc groove so that the MBR membrane has a first position separated from the cleaning roller and a second position attached to the cleaning roller.

[0013] Preferably, an aeration mechanism is further included, which includes an air tank and a plurality of groups of aeration nozzles spaced apart at the bottom of the filter tank, the plurality of groups of aeration nozzles are connected to the same air duct, the air tank is filled with air containing negative oxygen ions, a pulse air pump is provided between the air tank and the air duct, the cleaning roller is externally connected to a positive power source, and the filter tank is connected to an ozone oxidation unit via a second pump body.

[0014] Preferably, an inlet pipe and a drain pipe are respectively provided on both sides of the filter tank, a second impeller is rotatably connected to a side of the inner wall of the filter tank close to the inlet pipe, a first impeller is rotatably connected to a side of the inner wall of the filter tank close to the drain pipe, a first impeller is provided at one end of the first impeller located outside the filter tank with a first pulley, a second impeller is provided at one end of the second impeller located outside the filter tank with a second pulley, a third pulley is provided at one end of the two cleaning rollers located outside the third shell, and a transmission belt is connected between the first pulley, the second pulley and the adjacent third pulley.

[0015] Preferably, it further includes a concentration detection mechanism for detecting the concentration of floating matter inside the filter tank, the concentration detection mechanism includes a suspended matter sensor arranged near the water inlet pipe, and also includes a control mechanism for controlling the sliding of the frame, the control mechanism includes a PLC control unit.

[0016] Preferably, the first retractable assembly includes a first shell, in which a first rotating shaft is rotatably connected, and a first retractable disk is sleeved on the first rotating shaft; the second retractable assembly includes a second shell, in which a second rotating shaft is rotatably connected, and a second retractable disk is sleeved on the second rotating shaft; the side walls of the first shell and the second shell are both provided with door panels rotatably connected to facilitate replacement of the retractable disk; a forward and reverse motor is provided at the end of the first rotating shaft or the second rotating shaft, and the first rotating shaft and the second rotating shaft are connected for transmission via a gear chain assembly.

[0017] Preferably, a slag discharge port is obliquely arranged at the bottom of the third shell, a drain plate is obliquely arranged inside the third shell, the lower end of the drain plate is flush with the slag discharge port, and a reflux pipe is connected between the third shell and the filter tank.

[0018] Preferably, the MBR membrane passes through the upper and lower rows of reversing rollers in sequence to form a continuous V-shaped structure.

[0019] Preferably, a pretreatment unit is further included, the pretreatment unit includes a sedimentation tank, a stirring assembly is rotatably connected in the sedimentation tank, a sewage outlet is provided at the bottom of the sedimentation tank, a first pump body is connected between the sedimentation tank and the water inlet pipe, the ozone oxidation unit includes an ozone oxidation tank and an ozone supply tank, and the ozone supply tank is connected to the ozone oxidation tank through an air pump.

[0020] A sewage treatment method suitable for industrial sewage treatment, the specific steps are as follows:

[0021] S1, industrial wastewater is collected and discharged into a sedimentation tank to remove large-diameter dirt and floating objects;

[0022] S2, the sewage in the sedimentation tank enters the filter tank through the first pump body;

[0023] S3, the suspended matter sensor in the filter tank detects the suspended matter concentration, and then controls and adjusts the spacing between the MBR membranes in the filter tank through the PLC control unit;

[0024] S4. When the amount of suspended solids adsorbed by the MBR membrane reaches a certain threshold, the PLC control unit controls the forward and reverse motors to rotate and drive the first rotating shaft and the second rotating shaft to rotate, so that the MBR membranes adsorbing enough suspended solids are collected and cleaned at the same time, and at the same time, the MBR membranes with good adsorption capacity are released into the filter tank;

[0025] S5. The aeration mechanism intermittently exposes air containing negative oxygen ions into the filter tank, so that the negative oxygen ions combine with suspended matter, paving the way for the subsequent wastewater treatment in the ozone oxidation unit.

[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0027] 1. This application monitors the concentration of suspended solids in the influent in real time, drives the regulating mechanism to dynamically reduce or expand the membrane spacing, and reduces the membrane spacing to increase the shear force on the membrane surface when the suspended solids concentration is high, inhibits the deposition of pollutants, and increases the filtration flux per unit area; when the concentration is low, the spacing is expanded to reduce the friction loss on the membrane surface and extend the life of the membrane. The precise adjustment structure of the transverse guide rail and the sliding frame is combined to ensure that the tension of the membrane is uniform and avoid wrinkles or tears. The coordinated regulation of membrane spacing, aeration intensity, and oxidant addition is achieved through the PLC control unit, forming a closed loop of "concentration perception-spacing adjustment-pollution prevention and control", which systematically improves the adaptability, filtration efficiency, and operating economy of the MBR process.

[0028] It is worth mentioning that when the first and second retractable components rotate synchronously, taking the first retractable component rotating to release the MBR membrane as an example, the second retractable component winds up and stores the MBR membrane, thereby moving the MBR membrane in the filter tank. The MBR membrane that has absorbed a large amount of floating matter is cleaned under the cleaning roller under the traction of the second retractable component, and then wound up and stored on the second retractable component. At the same time, the cleaned or brand new MBR membrane wrapped on the first retractable component is released into the filter tank to work. There is no need to stop the whole process, and there is no need to manually replace the MBR membrane. In addition, when the concentration of suspended matter in the sewage in the filter tank is greater than a certain threshold, the control mechanism controls the movement of the frame, and the adjustment rod reduces the distance between adjacent MBR membranes, while increasing the total area of ​​the MBR membrane in the filter tank, thereby improving the overall filtering effect of the MBR membrane.

[0029] 2. By symmetrically setting the third shell on the upper part of the filter tank, the cleaning roller is connected to the inner rotation, and the outer wall of the cleaning roller is provided with nylon bristles, which can effectively clean the pollutants on the membrane surface. The side wall of the third shell is provided with an arc groove, and the rotating roller is slidably connected in the arc groove. The MBR membrane passes through the rotating roller, and the rotating roller slides in the arc groove, so that the MBR membrane has two positions: the first position separated from the cleaning roller and the second position attached to the cleaning roller. Therefore, when the membrane needs to be cleaned, the rotating roller moves to the second position, so that the membrane contacts the cleaning roller for cleaning; and when the membrane does not need to be cleaned, the rotating roller moves to the first position, so that the membrane is separated from the cleaning roller to avoid unnecessary friction damage.

[0030] 3. By setting up an aeration mechanism, the oxygen content in the filter tank can be effectively increased, the growth of anaerobic bacteria can be inhibited, and membrane pollution can be reduced. At the same time, the air with negative oxygen ions has stronger oxidizing properties, which can further decompose organic pollutants in the water and improve the sewage treatment effect. The use of a pulse air pump can achieve intermittent aeration, improve aeration efficiency, and reduce energy consumption. The cleaning roller is connected to the positive pole of the external power supply to further clean the pollutants on the membrane surface through electrochemical reactions, thereby extending the service life of the membrane. The introduction of the ozone oxidation unit can efficiently remove difficult-to-degrade organic matter in the water and further improve the effluent water quality. Furthermore, when the micro-floating objects adsorbed with negative oxygen ions enter the ozone oxidation unit, they can combine with ozone molecules more quickly and accurately, thereby greatly improving the oxidation effect and efficiency of the ozone oxidation unit.

[0031] 4. The setting of the water inlet pipe and the drain pipe ensures the normal operation of the sewage treatment equipment. The rotation of the impeller drives the movement of the pulley and the transmission belt, realizing the recovery and reuse of the kinetic energy of the water. At the same time, the sewage treatment equipment can continuously treat sewage. The cleaning roller is connected by the pulley and the transmission belt, which can effectively clean the sewage during the sewage treatment process, avoiding the sewage treatment equipment from affecting the treatment effect due to the accumulation of dirt.

[0032] 5. The V-shaped structure of the MBR membrane is designed to improve filtration efficiency and prevent membrane pollution. In the filtration tank, the MBR membrane is guided by the upper and lower rows of reversing rollers to form a continuous V-shaped structure. This design can increase the shear force on the membrane surface and reduce the deposition of pollutants on the membrane surface, thereby extending the service life of the membrane. At the same time, the V-shaped structure can also increase the filtration flux and ensure efficient sewage treatment.

[0033] 6. By introducing the suspended matter sensor and PLC control unit, the present application can realize the automatic adjustment of the membrane spacing, avoiding the problems of membrane pollution and low filtration efficiency caused by changes in suspended matter concentration in the traditional MBR system. Compared with the prior art, the present application not only improves the automation of the system, but also significantly improves the filtration effect and the service life of the membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the MBR membrane filtration unit in the present invention;

[0035] Figure 2 It is a front view of a specific embodiment of the present invention;

[0036] Figure 3 It is a front view of the MBR membrane filtration unit in the present invention;

[0037] Figure 4 It is a structural schematic diagram of the framework in the present invention.

[0038] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0039] In the attached picture:

[0040] 10. sedimentation tank; 11. first pump body; 12. stirring assembly; 13. sewage outlet; 20. filter tank; 201. drainage pipe; 2011. first impeller; 2012. first belt pulley; 202. water inlet pipe; 2021. second impeller; 2022. second belt pulley; 21. air tank; 211. pulse air pump; 212. air guide pipe; 213. aeration nozzle; 23. reversing roller; 24. first rotating shaft; 241. first retractable disk; 242 , first shell; 25, second rotating shaft; 251, second storage disk; 252, second shell; 26, MBR membrane; 27, transverse guide rail; 271, frame; 272, adjustment rod; 30, ozone oxidation tank; 31, air pump; 40, ozone supply tank; 5, third shell; 51, cleaning roller; 511, third pulley; 512, transmission belt; 52, drain plate; 521, reflux pipe; 53, slag discharge port; 6, rotating roller; 61, arc groove. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] In addition, in the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0046] It is understood by those skilled in the art that membrane bioreactor (MBR) technology has been widely used in the field of industrial wastewater treatment due to its high efficiency in intercepting pollutants and excellent effluent quality. However, the membrane units of the MBR system face problems such as severe membrane pollution, low cleaning efficiency, complex replacement and maintenance, and attenuation of filtration efficiency in long-term operation, which restricts its large-scale industrial application.

[0047] The concentration of suspended solids in industrial wastewater fluctuates significantly. The traditional MBR system adopts a fixed membrane spacing design, which is difficult to adapt to changes in water quality. When the concentration of suspended solids in the inlet water surges, the fixed membrane spacing can easily cause pollutants to accumulate quickly on the membrane surface, forming a dense filter cake layer, causing a sudden drop in flux; while at low concentrations, excessive membrane spacing cannot fully utilize the membrane surface area, reducing filtration efficiency. The existing technology lacks the ability to dynamically adjust the membrane spacing, resulting in the system's weak ability to resist shock loads under complex water quality and poor operating stability.

[0048] Conventional physical cleaning requires stopping the machine and disassembling the membrane components, and has a low degree of automation; online chemical cleaning is prone to secondary pollution and has high requirements for the corrosion resistance of the membrane material. Some improvement schemes attempt to use a mobile cleaning roller (51) for contact cleaning, but lack a dynamic fit adjustment mechanism with the membrane surface, which easily leads to blind cleaning areas or mechanical damage to the membrane surface, and it is difficult to balance cleaning efficiency and membrane life.

[0049] Traditional MBR membrane components are mostly fixed installations. When the pollution is serious, they need to be replaced as a whole, which causes the system to shut down for a long time and affects continuous production. Although some designs use a winding membrane structure to replace the local pollution section, it lacks the dynamic adjustment function of the membrane surface tension. During the replacement process, the membrane is prone to wrinkles and tears due to looseness or over-tightening, which reduces the effective filtration area of ​​the membrane.

[0050] Existing MBR systems mostly rely on fixed membrane assembly layouts and cannot optimize membrane spacing in real time according to suspended solids concentration. Under the same aeration intensity, reducing membrane spacing can enhance membrane surface shear force and delay pollutant deposition, but the existing technology mostly relies on manual intervention or mechanical fixed gears to adjust membrane spacing, lacking closed-loop feedback control with water quality parameters.

[0051] Reference Figure 1-Figure 4The present application proposes a sewage treatment equipment suitable for industrial sewage treatment, including an MBR membrane filtration unit, and the MBR membrane filtration unit includes a filter tank 20. A first retractable assembly and a second retractable assembly are rotatably arranged at the upper end of the filter tank 20, and two rows of reversing rollers 23 are vertically spaced in the filter tank 20. An MBR membrane 26 is wound on the first retractable assembly, and the MBR membrane 26 passes through the upper and lower rows of reversing rollers 23 in sequence and then is wound with the second retractable assembly. The filter tank 20 also includes a transverse guide rail 27, a frame 271 is slidably connected in the transverse guide rail 27, and a plurality of adjustment rods 272 are spaced on the frame 271. The MBR membrane 26 passes through the gap between the two adjacent groups of adjustment rods 272 while passing through the upper and lower rows of reversing rollers 23.

[0052] The dynamic contradiction between membrane pollution and filtration efficiency is the main problem to be solved in this application. By real-time monitoring of the suspended solids concentration of the influent, the regulating mechanism is driven to dynamically reduce or expand the membrane spacing. When the suspended solids concentration is high, the membrane spacing is reduced to increase the shear force on the membrane surface, inhibit the deposition of pollutants, and increase the filtration flux per unit area; when the concentration is low, the spacing is expanded to reduce the friction loss on the membrane surface and extend the life of the membrane. Combined with the precise adjustment structure of the transverse guide rail 27 and the sliding frame 271, the tension of the membrane is ensured to be uniform to avoid wrinkles or tears. The coordinated regulation of membrane spacing-aeration intensity-oxidant addition is achieved through the PLC control unit, forming a closed loop of "concentration perception-spacing adjustment-pollution prevention and control", which systematically improves the adaptability, filtration efficiency and operation economy of the MBR process.

[0053] The filter tank 20 in the MBR membrane filtration unit is the core component of sewage treatment. The first and second retractable components at the upper end of the filter tank 20 are used to wind the MBR membrane 26, and the two rows of reversing rollers 23 in the filter tank 20 are used to guide the path of the membrane. The design of the transverse guide rail 27 and the slidable frame 271 enables the adjustment rod 272 to flexibly adjust the membrane spacing to adapt to different suspended matter concentrations. The PLC control unit realizes dynamic regulation of the membrane spacing through real-time monitoring and adjustment.

[0054] It is worth mentioning that when the first and second retractable components rotate synchronously, taking the first retractable component rotating to release the MBR membrane 26 as an example, the second retractable component winds and stores the MBR membrane 26, thereby moving the MBR membrane 26 in the filter tank 20. The MBR membrane 26 that has absorbed a large amount of floating matter is cleaned under the cleaning roller 51 under the traction of the second retractable component, and then wound and stored on the second retractable component. At the same time, the cleaned or brand new MBR membrane 26 wound on the first retractable component is released into the filter tank 20 for work, without stopping the whole process, and without manually replacing the MBR membrane 26. In addition, when the concentration of suspended matter in the sewage in the filter tank 20 is greater than a certain threshold value, the control mechanism controls the frame 271 to move, and the adjustment rod 272 reduces the distance between adjacent MBR membranes 26, while increasing the total area of ​​the MBR membrane 26 in the filter tank 20, thereby improving the overall filtering effect of the MBR membrane 26.

[0055] Compared with the existing technology, the sewage treatment equipment of this application effectively solves the problems of increased membrane pollution and low filtration efficiency caused by fixed membrane spacing in traditional MBR systems by dynamically adjusting the membrane spacing. Through the intelligent regulation of the PLC control unit, the coordinated optimization of membrane spacing, aeration intensity and oxidant addition is achieved, which significantly improves the adaptability and treatment efficiency of the system.

[0056] The sewage treatment equipment of the present application solves the problems of serious membrane pollution, low cleaning efficiency, complicated replacement and maintenance, and attenuation of filtration efficiency in the traditional MBR system through innovative dynamic control technology of membrane spacing. The MBR membrane 26 in the filter tank 20 forms a stable filtration path through the cooperation of the reversing roller 23 and the adjusting rod 272, and the design of the transverse guide rail 27 and the frame 271 ensures that the tension of the membrane is uniform. The PLC control unit realizes the dynamic control of the membrane spacing through real-time monitoring and adjustment, thereby improving the filtration efficiency and stability of the system. Through the above-mentioned technical means, the present application significantly improves the adaptability, filtration efficiency and operation economy of the MBR process.

[0057] As a preferred embodiment of the present application, refer to Figure 1-Figure 3 A third shell 5 is symmetrically arranged on the upper part of the filter tank 20, and a cleaning roller 51 is rotatably connected in the third shell 5. The outer wall of the cleaning roller 51 is provided with nylon bristles, and the side wall of the third shell 5 is provided with an arc groove 61. A rotating roller 6 is slidably connected in the arc groove 61. The MBR membrane 26 passes through the rotating roller 6, and the rotating roller 6 slides in the arc groove 61 so that the MBR membrane 26 has a first position separated from the cleaning roller 51 and a second position attached to the cleaning roller 51.

[0058] The present application symmetrically arranges the third shell 5 on the upper part of the filter tank 20, and the cleaning roller 51 is rotatably connected inside. The outer wall of the cleaning roller 51 is provided with nylon bristles, which can effectively clean the pollutants on the membrane surface. The side wall of the third shell 5 is provided with an arc groove 61, and the rotating roller 6 is slidably connected in the arc groove 61. The MBR membrane 26 passes through the rotating roller 6, and the rotating roller 6 slides in the arc groove 61, so that the MBR membrane 26 has two positions: a first position separated from the cleaning roller 51 and a second position attached to the cleaning roller 51. Therefore, when the membrane needs to be cleaned, the rotating roller 6 moves to the second position, so that the membrane contacts the cleaning roller 51 for cleaning; and when the membrane does not need to be cleaned, the rotating roller 6 moves to the first position, so that the membrane is separated from the cleaning roller 51 to avoid unnecessary friction damage.

[0059] Furthermore, a cleaning roller 51 is rotatably connected in the third shell 5, and the outer wall of the cleaning roller 51 is provided with nylon bristles, which can effectively perform physical cleaning. The rotating roller 6 is slidably connected in the arc groove 61, and the MBR membrane 26 passes through the rotating roller 6. The dynamic position adjustment of the membrane is achieved by sliding the rotating roller 6 in the arc groove 61. Specifically, when the rotating roller 6 slides in the arc groove 61, the contact state between the membrane and the cleaning roller 51 can be adjusted as needed, so that the membrane can be fitted with the cleaning roller 51 for cleaning when cleaning is required, and can be separated from the cleaning roller 51 when cleaning is not required, avoiding unnecessary friction damage. As a preferred embodiment, the sliding of the rotating roller 6 can be driven by a motor to further improve the accuracy and automation of the adjustment.

[0060] The present application realizes the dynamic cleaning function of the MBR membrane 26 by setting the third shell 5, the cleaning roller 51, the arc groove 61 and the rotating roller 6, and solves the problem of serious membrane pollution and low cleaning efficiency in the prior art. Compared with the prior art, the present application can dynamically adjust the contact state between the membrane and the cleaning roller 51 according to actual needs, improve the cleaning efficiency, reduce the damage to the membrane, and extend the service life of the membrane.

[0061] As another preferred embodiment of the present application, refer to Figure 1-Figure 3 , and also includes an aeration mechanism, which includes an air tank 21 and a plurality of groups of aeration nozzles 213 spaced apart at the bottom of the filter tank 20, the plurality of groups of aeration nozzles 213 are connected to the same air duct 212, the air tank 21 is filled with air containing negative oxygen ions, a pulse air pump 31211 is provided between the air tank 21 and the air duct 212, the cleaning roller 51 is externally connected to a positive pole of a power source, and the filter tank 20 is connected to an ozone oxidation unit via a second pump body.

[0062] This technical solution aims to solve the problems of serious membrane pollution, low cleaning efficiency, complex replacement and maintenance, and attenuation of filtration efficiency. By setting up an aeration mechanism, the oxygen content in the filter tank 20 can be effectively increased, the growth of anaerobic bacteria can be inhibited, and membrane pollution can be reduced. At the same time, the air with negative oxygen ions has stronger oxidizing properties, which can further decompose organic pollutants in the water and improve the sewage treatment effect. The use of pulse air pump 31211 can achieve intermittent aeration, improve aeration efficiency, and reduce energy consumption. The cleaning roller 51 is connected to the positive pole of the external power supply to further clean the pollutants on the membrane surface through electrochemical reactions and extend the service life of the membrane. The introduction of the ozone oxidation unit can efficiently remove difficult-to-degrade organic matter in the water and further improve the effluent water quality. Furthermore, when the micro-floating objects adsorbed with negative oxygen ions enter the ozone oxidation unit, they can combine with ozone molecules more quickly and accurately, thereby greatly improving the oxidation effect and oxidation efficiency of the ozone oxidation unit.

[0063] The aeration mechanism can be implemented in various ways. For example, the gas tank 21 can adopt a high-pressure gas tank 21 to ensure sufficient gas supply pressure. The arrangement of the aeration nozzle 213 can be optimized according to the specific size and shape of the filter tank 20 to ensure the uniformity of aeration. The pulse air pump 31211 can be controlled by a programmable controller to achieve the best aeration cycle and frequency. The power connection of the cleaning roller 51 can adopt a waterproof joint to ensure the safety and reliability of the equipment. The ozone oxidation unit can select a suitable ozone generator and oxidation tank according to actual needs to ensure sufficient ozone production and reaction time.

[0064] Through the above technical scheme, this application further optimizes the membrane pollution control and cleaning process on the basis of the existing MBR system, reduces the frequency of membrane replacement, and improves the filtration efficiency and operation stability of the system. Compared with the existing technology, this application realizes the comprehensive prevention and control of membrane pollution through the synergistic effect of multiple means such as aeration, negative oxygen ions, pulse air pump 31211, electrochemical cleaning and ozone oxidation, and significantly improves the overall performance of industrial wastewater treatment equipment.

[0065] As a preferred embodiment of the present application, refer to Figure 1-Figure 3The present application also proposes that an inlet pipe 202 and a drain pipe 201 are respectively provided on both sides of the filter pool 20, a second impeller 2021 is rotatably connected to the side of the inner wall of the filter pool 20 close to the inlet pipe 202, a first impeller 2011 is rotatably connected to the side of the inner wall of the filter pool 20 close to the drain pipe 201, a first impeller 2011 is provided with a first pulley 2012 at one end of the first impeller 2011 located outside the filter pool 20, a second impeller 2022 is provided at one end of the second impeller 2021 located outside the filter pool 20, a third pulley 511 is provided at one end of the two cleaning rollers 51 located outside the third shell 5, and a transmission belt 512 is connected between the first pulley 2012, the second pulley 2022 and the adjacent third pulley 511.

[0066] The present application arranges an inlet pipe 202 and a drain pipe 201 on both sides of the filter tank 20, one side of the inlet pipe 202 is connected to the second impeller 2021, and one side of the drain pipe 201 is connected to the first impeller 2011, and the rotation of the impeller drives the movement of the pulley and the transmission belt 512 to achieve the inflow and outflow of sewage. The cleaning roller 51 is connected to the transmission belt 512 through the third pulley 511, and can effectively clean the sewage during the sewage treatment process. The arrangement of the inlet pipe 202 and the drain pipe 201 ensures that the water inflow and outflow of the sewage treatment equipment are smooth, and the combination of the impeller and the pulley makes the sewage treatment process more efficient.

[0067] The arrangement of the water inlet pipe 202 and the drain pipe 201 ensures the normal operation of the sewage treatment equipment. The rotation of the impeller drives the movement of the pulley and the transmission belt 512, realizing the recovery and reuse of the kinetic energy of the water, and at the same time, enabling the sewage treatment equipment to continuously treat sewage. The cleaning roller 51 is connected by the pulley and the transmission belt 512, and can effectively clean the sewage during the sewage treatment process, avoiding the sewage treatment equipment from being affected by the accumulation of dirt.

[0068] Therefore, the present application sets a water inlet pipe 202 and a drain pipe 201 on both sides of the filter tank 20, and connects a second impeller 2021 to one side of the water inlet pipe 202, and connects a first impeller 2011 to one side of the drain pipe 201. The rotation of the impeller drives the movement of the pulley and the transmission belt 512 to realize the inflow and outflow of sewage. The cleaning roller 51 is connected to the transmission belt 512 through the third pulley 511, and can effectively clean the sewage during the sewage treatment process. The setting of the water inlet pipe 202 and the drain pipe 201 ensures that the water inflow and outflow of the sewage treatment equipment are smooth, and the combination of the impeller and the pulley makes the sewage treatment process more efficient. Compared with the prior art, the present application enables the sewage treatment equipment to continuously treat sewage through the combination of the impeller and the pulley, and the effective cleaning function of the cleaning roller 51 avoids the sewage treatment equipment from affecting the treatment effect due to the accumulation of dirt, thereby improving the treatment efficiency and operation stability of the sewage treatment equipment.

[0069] As a preferred example of this application, refer to Figure 1-Figure 3 It also includes a concentration detection mechanism for detecting the concentration of floating matter inside the filter tank 20, the concentration detection mechanism includes a suspended matter sensor set near the water inlet pipe 202, and also includes a control mechanism for controlling the sliding of the frame 271, the control mechanism includes a PLC control unit.

[0070] The technical solution of the present application is to set a suspended matter sensor in the filter tank 20 to detect the concentration of floating matter in the filter tank 20 in real time. The PLC control unit controls the sliding of the frame 271 according to the detection result of the suspended matter sensor, thereby realizing dynamic adjustment of the membrane spacing. In this way, the membrane spacing can be automatically adjusted according to the actual water quality, the filtering effect can be optimized, and the service life of the membrane can be extended.

[0071] The suspended matter sensor can adopt common suspended matter detection technologies such as optical sensors or ultrasonic sensors. The PLC control unit can realize real-time processing of suspended matter concentration data through programming, and drive the sliding device of the frame 271 to adjust the membrane spacing according to the preset control logic. In addition, the control mechanism can also include an alarm device, which sends an alarm signal when the suspended matter concentration exceeds the set threshold value to remind the operator to take corresponding measures.

[0072] By introducing the suspended matter sensor and PLC control unit, the present application can realize the automatic adjustment of the membrane spacing, avoiding the problems of membrane pollution and low filtration efficiency caused by the change of suspended matter concentration in the traditional MBR system. Compared with the prior art, the present application not only improves the automation of the system, but also significantly improves the filtration effect and the service life of the membrane.

[0073] As a specific implementation of the first retractable assembly and the second retractable assembly, refer to Figure 1-Figure 3 The first retractable assembly includes a first shell 242, in which a first rotating shaft 24 is rotatably connected, and a first retractable disk 241 is sleeved on the first rotating shaft 24. The second retractable assembly includes a second shell 252, in which a second rotating shaft 25 is rotatably connected, and a second retractable disk 251 is sleeved on the second rotating shaft 25. The side walls of the first shell 242 and the second shell 252 are both provided with door panels rotatably connected to facilitate the replacement of the retractable disks. A forward and reverse motor is provided at the end of the first rotating shaft 24 or the second rotating shaft 25, and the first rotating shaft 24 and the second rotating shaft 25 are connected and driven by a gear chain assembly.

[0074] The technical solution realizes the function of retracting and releasing the MBR membrane 26 by arranging the first rotating shaft 24 in the first housing 242, sleeved the first receiving and releasing disk 241 on the first rotating shaft 24, and arranging the second rotating shaft 25 in the second housing 252, sleeved the second receiving and releasing disk 251 on the second rotating shaft 25. The side walls of the first housing 242 and the second housing 252 are provided with door panels connected in rotation, which is convenient for replacing the receiving and releasing disk. The setting of the forward and reverse motor enables the first rotating shaft 24 and the second rotating shaft 25 to rotate forward and reverse, thereby realizing the retracting and releasing of the MBR membrane 26. The first rotating shaft 24 and the second rotating shaft 25 are connected by a gear chain assembly to ensure synchronous transmission between the two.

[0075] The newly added technical features of the technical solution include a first housing 242, a first rotating shaft 24, a first receiving and releasing disk 241, a second housing 252, a second rotating shaft 25, a second receiving and releasing disk 251, a door panel, a forward and reverse motor, and a gear chain assembly. The setting of the first housing 242 and the second housing 252 provides an independent structural space, which can effectively protect the internal rotating shaft and receiving and releasing disk. The first rotating shaft 24 and the second rotating shaft 25 are connected by a gear chain assembly to achieve synchronous rotation, ensuring the smooth receiving and releasing of the MBR membrane 26. The setting of the forward and reverse motor enables the rotating shaft to rotate forward and reverse, thereby realizing the receiving and releasing function of the MBR membrane 26. The setting of the door panel facilitates the replacement of the receiving and releasing disk, which increases the maintenance convenience of the equipment.

[0076] Specifically, the first rotating shaft 24 and the second rotating shaft 25 are connected by a gear chain assembly to ensure synchronous transmission between the two. The setting of the forward and reverse motor enables the first rotating shaft 24 and the second rotating shaft 25 to rotate forward and reverse, thereby realizing the retraction and extension of the MBR membrane 26. The setting of the door panel facilitates the replacement of the retractable disk, which increases the maintenance convenience of the equipment. Through the combination of the above technical features, the efficient retraction and extension of the MBR membrane 26 is achieved, which solves the problem of complex replacement and maintenance of traditional MBR membrane components and improves the operating efficiency and maintenance convenience of the equipment.

[0077] It can be seen that the present application realizes efficient retraction and extension of the MBR membrane 26 by setting the first retractable assembly and the second retractable assembly. This technical solution solves the problem of complex replacement and maintenance of traditional MBR membrane assemblies, and improves the operating efficiency and maintenance convenience of the equipment. Compared with the prior art, the present application has the advantages of simple structure, convenient operation, and low maintenance cost.

[0078] As a preferred example of the third housing 5, refer to Figure 1 and Figure 3 The present application also proposes that a slag discharge port 53 is obliquely arranged at the bottom of the third shell 5 , a drain plate 52 is obliquely arranged inside the third shell 5 , the lower end of the drain plate 52 is flush with the slag discharge port 53 , and a reflux pipe 521 is connected between the third shell 5 and the filter tank 20 .

[0079] The technical solution of the present application is that by providing an inclined slag discharge port 53 at the bottom of the third housing 5, the dirt and residue generated during the cleaning process can be effectively discharged. The inclined design of the drain plate 52 allows water to flow along the drain plate 52 to the slag discharge port 53, thereby preventing water from accumulating in the third housing 5. The provision of the reflux pipe 521 allows part of the water to flow back to the filter tank 20, further improving the utilization rate of water resources.

[0080] Through the above design, the combination of the slag discharge port 53 and the drain plate 52 allows the dirt and residue to be discharged smoothly, avoiding the accumulation of dirt during the cleaning process. The setting of the return pipe 521 ensures the recycling of water and improves the overall operating efficiency of the equipment. Furthermore, this design can reduce the frequency and difficulty of maintenance and reduce the operating cost of the equipment.

[0081] It can be seen that the technical solution of the present application solves the problems of incomplete cleaning and stain accumulation in the prior art through reasonable structural design, and improves the cleaning efficiency and operating stability of the equipment.

[0082] As a preferred arrangement of the MBR membrane 26 in this application, refer to Figure 1 The present application also proposes that the MBR membrane 26 passes through the upper and lower rows of reversing rollers 23 in sequence to form a continuous V-shaped structure.

[0083] The V-shaped structure of the MBR membrane 26 is designed to improve the filtration efficiency and prevent membrane pollution. In the filter tank 20, the MBR membrane 26 is guided by the upper and lower rows of reversing rollers 23 to form a continuous V-shaped structure. This design can increase the shear force on the membrane surface and reduce the deposition of pollutants on the membrane surface, thereby extending the service life of the membrane. At the same time, the V-shaped structure can also increase the filtration flux and ensure efficient sewage treatment.

[0084] Specifically, the MBR membrane 26 is guided by two rows of reversing rollers 23 to form a continuous V-shaped structure. The spacing between the upper reversing rollers 23 and the lower reversing rollers 23 can be adjusted according to actual needs to meet the sewage treatment requirements of different suspended matter concentrations. By adjusting the spacing of the reversing rollers 23, the spacing can be reduced when the suspended matter concentration is high, the shear force on the membrane surface can be increased, and the deposition of pollutants can be inhibited; the spacing can be expanded when the suspended matter concentration is low, the friction loss on the membrane surface can be reduced, and the service life of the membrane can be extended.

[0085] Therefore, the present application solves the problems of serious membrane pollution, low cleaning efficiency, complex replacement and maintenance, and attenuation of filtration efficiency in the traditional MBR system through the V-shaped structural design of the MBR membrane 26. Compared with the prior art, the technical solution of the present application can dynamically adjust the membrane spacing under different suspended matter concentrations, improve the filtration efficiency and the service life of the membrane, and ensure efficient sewage treatment.

[0086] Reference Figure 2 Furthermore, the present application also proposes that it also includes a pretreatment unit, which includes a sedimentation tank 10, in which a stirring assembly 12 is rotatably connected, a sewage outlet 13 is provided at the bottom of the sedimentation tank 10, and a first pump body 11 is connected between the sedimentation tank 10 and the water inlet pipe 202.

[0087] The present application aims to solve the problems of serious membrane pollution, low cleaning efficiency, complicated replacement and maintenance, and attenuation of filtration efficiency in the process of industrial wastewater treatment. By adding a pretreatment unit to the sewage treatment equipment, the concentration of suspended matter entering the MBR membrane filtration unit can be effectively reduced. The sedimentation tank 10 in the pretreatment unit can settle the suspended matter by gravity, thereby reducing the pollutant load entering the filter tank 20. The setting of the stirring component 12 helps to evenly mix the sewage in the sedimentation tank 10 to prevent the suspended matter from forming dead corners during the sedimentation process. The setting of the sewage outlet 13 facilitates the regular cleaning of the sludge deposited at the bottom of the sedimentation tank 10 to ensure the normal operation of the sedimentation tank 10. The first pump body 11 is used to transport the pretreated sewage to the filter tank 20 to ensure the continuity of the entire treatment process.

[0088] Specifically, the pretreatment unit significantly reduces the concentration of suspended matter in the sewage through the gravity sedimentation of the sedimentation tank 10, thereby reducing the pollutant load entering the MBR membrane filtration unit. The setting of the stirring assembly 12 improves the sedimentation efficiency and prevents the suspended matter from accumulating in the sedimentation tank 10. The design of the sewage outlet 13 facilitates the regular discharge of sludge at the bottom of the sedimentation tank 10, keeping the sedimentation tank 10 clean and operating efficiently. Through the transportation of the first pump body 11, the pretreated sewage can stably enter the filter tank 20, ensuring the smooth progress of the subsequent treatment process.

[0089] Therefore, the introduction of the pretreatment unit not only improves the overall filtration efficiency of the sewage treatment equipment, but also extends the service life of the MBR membrane 26, reducing maintenance costs and downtime. Compared with the prior art, the present application effectively controls the suspended matter in the sewage through the setting of the pretreatment unit, significantly improving the adaptability and operational stability of the system. Furthermore, the ozone oxidation unit includes an ozone oxidation tank 30 and an ozone supply tank 40, and the ozone supply tank 40 is connected to the ozone oxidation tank 30 through an air pump 31.

[0090] In the present application, the ozone oxidation unit is designed to further treat organic pollutants in sewage through the strong oxidizing property of ozone, thereby improving the effect of sewage treatment. The ozone oxidation tank 30 is used to store and react ozone, the ozone supply tank 40 is used to replenish ozone, and the air pump 31 is used to transport ozone from the supply tank to the oxidation tank. Through this design, the ozone oxidation process can be ensured to continue, and the difficult-to-degrade organic matter in the sewage can be effectively decomposed to reduce the residual pollutants.

[0091] Specifically, the connection between the ozone oxidation tank 30 and the ozone supply tank 40 can be in various forms. For example, the air pump 31 can be a one-way air pump 31 to ensure the one-way flow of ozone and avoid pollution caused by backflow. The interior of the ozone oxidation tank 30 can be designed as a multi-layer structure to increase the contact area between ozone and sewage and improve the oxidation efficiency. The ozone supply tank 40 can be equipped with an automatic monitoring and control system to monitor the ozone concentration in real time and automatically replenish ozone as needed to ensure the continuity and stability of the treatment process.

[0092] Therefore, by setting up an ozone oxidation unit, the present application can further improve the treatment effect on the basis of existing sewage treatment equipment, especially for some organic pollutants that are difficult to degrade, the ozone oxidation unit can play a significant role and improve the overall efficiency and effect of sewage treatment. Compared with the prior art, the design of the present application can more effectively solve the problem that organic pollutants are difficult to completely degrade during sewage treatment. At the same time, through the automatic control system, the operation process is simplified, manual intervention is reduced, and the reliability and stability of the system are improved.

[0093] Anything not described in the present invention can be achieved by adopting or drawing on existing technologies.

[0094] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0095] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A sewage treatment equipment suitable for industrial sewage treatment, characterized in that: It includes an MBR membrane filtration unit, which includes a filter tank, a first retractable assembly and a second retractable assembly are rotatably arranged on the upper end of the filter tank, two rows of reversing rollers are vertically spaced in the filter tank, an MBR membrane is wound on the first retractable assembly, the MBR membrane passes through the upper and lower rows of reversing rollers in sequence and then is wound with the second retractable assembly, and also includes a transverse guide rail in the filter tank, a frame is slidably connected in the transverse guide rail, a plurality of adjusting rods are spaced on the frame, and the MBR membrane passes through the gap between the two adjacent groups of adjusting rods while passing through the upper and lower rows of reversing rollers.

2. A sewage treatment equipment suitable for industrial sewage treatment according to claim 1, characterized in that: A third shell is symmetrically arranged on the upper part of the filter tank, a cleaning roller is rotatably connected in the third shell, nylon bristles are arranged on the outer wall of the cleaning roller, an arc groove is arranged on the side wall of the third shell, a rotating roller is slidably connected in the arc groove, the MBR membrane passes through the rotating roller, and the rotating roller slides in the arc groove so that the MBR membrane has a first position separated from the cleaning roller and a second position attached to the cleaning roller.

3. A sewage treatment equipment suitable for industrial sewage treatment according to claim 2, characterized in that: It also includes an aeration mechanism, which includes an air tank and several groups of aeration nozzles spaced apart at the bottom of the filter tank, the several groups of aeration nozzles are connected to the same air duct, the air tank is filled with air containing negative oxygen ions, a pulse air pump is provided between the air tank and the air duct, the cleaning roller is externally connected to a positive power supply, and the filter tank is connected to an ozone oxidation unit via a second pump body.

4. A sewage treatment equipment suitable for industrial sewage treatment according to claim 3, characterized in that: An inlet pipe and a drain pipe are respectively provided on both sides of the filter tank, a second impeller is rotatably connected to one side of the inner wall of the filter tank close to the inlet pipe, a first impeller is rotatably connected to one side of the inner wall of the filter tank close to the drain pipe, a first impeller is provided at one end of the first impeller located outside the filter tank with a first pulley, a second impeller is provided at one end of the second impeller located outside the filter tank with a second pulley, a third pulley is provided at one end of the two cleaning rollers located outside the third shell, and a transmission belt is connected between the first pulley, the second pulley and the adjacent third pulley.

5. The sewage treatment equipment suitable for industrial sewage treatment according to claim 3 is characterized in that: It also includes a concentration detection mechanism for detecting the concentration of floating matter inside the filter pool, the concentration detection mechanism includes a suspended matter sensor arranged near the water inlet pipe, and also includes a control mechanism for controlling the sliding of the frame, the control mechanism includes a PLC control unit.

6. The sewage treatment equipment suitable for industrial sewage treatment according to claim 1 is characterized in that: The first retractable assembly includes a first shell, in which a first rotating shaft is rotatably connected, and a first retractable disk is sleeved on the first rotating shaft. The second retractable assembly includes a second shell, in which a second rotating shaft is rotatably connected, and a second retractable disk is sleeved on the second rotating shaft. The side walls of the first shell and the second shell are both provided with door panels rotatably connected, and a forward and reverse motor is provided at the end of the first rotating shaft or the second rotating shaft. The first rotating shaft and the second rotating shaft are connected for transmission via a gear chain assembly.

7. The sewage treatment equipment suitable for industrial sewage treatment according to claim 2 is characterized in that: A slag discharge port is obliquely arranged at the bottom of the third shell, a drain plate is obliquely arranged inside the third shell, the lower end of the drain plate is flush with the slag discharge port, and a reflux pipe is connected between the third shell and the filter tank.

8. The sewage treatment equipment suitable for industrial sewage treatment according to claim 1 is characterized in that: The MBR membranes pass through the upper and lower rows of reversing rollers in sequence to form a continuous V-shaped structure.

9. The sewage treatment equipment suitable for industrial sewage treatment according to claim 3, characterized in that: It also includes a pretreatment unit, which includes a sedimentation tank, a stirring assembly is rotatably connected in the sedimentation tank, a sewage outlet is provided at the bottom of the sedimentation tank, a first pump body is connected between the sedimentation tank and the water inlet pipe, and the ozone oxidation unit includes an ozone oxidation tank and an ozone supply tank, and the ozone supply tank and the ozone oxidation tank are connected through an air pump.

10. A sewage treatment method suitable for industrial sewage treatment, using the sewage treatment equipment according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1, industrial wastewater is collected and discharged into a sedimentation tank to remove large-diameter dirt and floating objects; S2, the sewage in the sedimentation tank enters the filter tank through the first pump body; S3, the suspended matter sensor in the filter tank detects the suspended matter concentration, and then controls and adjusts the spacing between the MBR membranes in the filter tank through the PLC control unit; S4. When the amount of suspended solids adsorbed by the MBR membrane reaches a certain threshold, the PLC control unit controls the forward and reverse motors to rotate and drive the first rotating shaft and the second rotating shaft to rotate, so that the MBR membranes adsorbing enough suspended solids are collected and cleaned at the same time, and at the same time, the MBR membranes with good adsorption capacity are released into the filter tank; S5. The aeration mechanism intermittently exposes air containing negative oxygen ions into the filter tank, so that the negative oxygen ions combine with suspended matter, paving the way for the subsequent wastewater treatment in the ozone oxidation unit.

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