Annular MABR sludge and sewage enhanced treatment device

Abstract

The utility model discloses an annular MABR sludge and sewage enhanced treatment device, which belongs to a domestic sewage treatment device, is used for domestic sewage treatment, and comprises a sludge and sewage pretreatment tank with a marble flow guide surface arranged in the middle of an MABR water tank, and the sludge and sewage pretreatment tank is respectively connected with a sludge and water inlet pipeline, a spray head and a driving assembly; the MABR water tank is provided with an MABR membrane assembly communicated with aeration equipment, the MABR water tank is communicated with a sludge and sewage return pipeline and a sludge drainage pipeline through a sludge and sewage overflow port, the sludge and sewage return pipeline is communicated with the sludge and sewage pretreatment tank, and the sludge and sewage pretreatment tank is communicated with an oxidant storage tank through a dosing pipeline and a dosing pump. According to the technical scheme, through structural improvement, addition of the oxidizing agent and treatment of aerobic, anoxic and anaerobic microorganisms, efficient treatment and biological treatment of sludge and sewage are achieved, and therefore the sludge yield is reduced while the water quality purification efficiency is remarkably improved.

Description

Technical Field

[0001] The present application relates to a domestic sewage treatment device, and more specifically, to an annular MABR sludge sewage enhanced treatment device. Background Art

[0002] With the integration of urban and rural development and rising expectations for water quality, my country's urban sewage treatment volume has increased annually, and sewage treatment effluent standards have become increasingly stringent. Sludge contains 30% to 50% of the pollutants in sewage, including pathogens, parasites (eggs), toxic organic matter, heavy metals, and some antibiotic components, as well as large amounts of carbon, nitrogen, and phosphorus. Furthermore, excessive sludge concentrations can affect the effluent quality of sewage treatment plants. Improper sludge handling can also easily lead to secondary pollution, damage the ecological environment, spread disease, and endanger people's physical and mental health.

[0003] MABR (Membrane Aerated Biofilm Reactor) plays an important role in the field of water treatment due to its high efficiency, energy saving, low carbon and sustainability. For example, the patent document with Chinese Patent Publication No. CN118954811A discloses a sewage treatment system based on the combination of MABR and magnetic separation, and specifically discloses the following technical solutions: including a MABR reaction tank and a magnetic separation reaction tank; the MABR reaction tank includes a MABR membrane module, stirring and mixing equipment, MABR gas supply equipment, and a tank body; the magnetic separation reaction tank includes a dosing mixing reaction tank, a flocculation reaction tank, a magnetic seed loading tank, a sedimentation separation tank, a sludge discharge system, a magnetic seed separation device, and a magnetic seed recovery device.

[0004] Continuing to refer to the patent document with Chinese patent publication number CN117185564A, it discloses a sewage treatment process based on MABR, and further discloses the following technical solution: it includes a sewage collection tank, an anaerobic tank, an MABR reaction tank, a secondary sedimentation tank and an intermediate water tank integrated in a concrete box, the bottom of the secondary sedimentation tank is connected to the sludge concentration tank and the sludge storage tank, and the MABR module is arranged in the MABR reaction tank. The MABR module includes an aeration membrane and a microbial membrane. The microbial membrane is an aerobic nitrification layer, a transition layer, an anaerobic layer and an anaerobic denitrification layer in the direction away from the aeration membrane.

[0005] However, the technical solution disclosed in patent document CN118954811A, which utilizes a magnetic separation reaction tank, increases the complexity of the sewage treatment equipment to a certain extent. How to simplify the complexity of the sewage purification equipment while simultaneously achieving efficient and biological treatment of sludge and sewage, and reducing sludge content while ensuring that the effluent meets standards, has become a technical challenge facing industry technicians. Patent document CN117185564A lacks a pretreatment stage for sewage sludge, and is unable to further improve the treatment efficiency and quality of sludge and sewage over the aforementioned structure, making it susceptible to the impact of sludge content. Summary of the Invention

[0006] The purpose of this application is to provide an annular MABR sludge and sewage enhanced treatment device, which achieves efficient treatment and biological treatment of sludge and sewage through structural improvements, combined with the addition of oxidants and the treatment of aerobic, anoxic and anaerobic microorganisms, thereby significantly improving water purification efficiency while reducing sludge production.

[0007] To achieve the above objectives, this application is implemented through the following technical solutions:

[0008] The annular MABR sludge and sewage enhanced treatment device described in the present application includes a MABR water tank, which is an annular structure. A sludge and sewage pretreatment tank is provided in the middle of the MABR water tank, and the sludge and sewage pretreatment tank is connected to the sludge and water inlet pipe of the sludge drainage pipe; a nozzle and a drive assembly are provided at the outlet of the sludge and sewage pretreatment tank, and a marble guide surface is provided around the nozzle and the drive assembly. The marble guide surface is distributed on the sludge and sewage pretreatment tank, and the MABR tank is provided with several MAB R membrane assembly, several MABR membrane assemblies are connected to the aeration equipment; several sludge and sewage overflow ports are distributed at the bottom of the MABR water tank, and the sludge and sewage overflow ports are respectively connected to the sludge and sewage return pipe and the sludge drainage pipe, and the sludge and sewage return pipe and the sludge drainage pipe are respectively connected to the sludge and sewage inlet pipe, and a drainage three-way regulating valve is provided at the position where the sludge drainage pipe is connected to the sludge and sewage return pipe; the sludge and sewage pretreatment tank is also connected to a dosing pipe, and the dosing pipe is connected to the oxidant storage tank through a dosing pump.

[0009] As one of the preferred technical solutions, in this application, the nozzle and drive assembly includes a nozzle pipeline connected to the inside of the sludge and sewage pretreatment tank, and a pump body that drives the nozzle to work, and the pump body is driven by an internal combustion engine or electricity.

[0010] As one of the preferred technical solutions, in the present application, the upper surface of the marble guide surface is a smooth plane and smoothly transitions from the top of the sludge and sewage pretreatment tank to the bottom of the MABR tank. The sludge and sewage sprayed by the nozzle and the drive assembly flow into the MABR tank equipped with the MABR membrane assembly through the upper surface of the marble guide surface.

[0011] As one of the preferred technical solutions, in this application, the MABR membrane assembly includes a hollow fiber membrane made of polyvinylidene fluoride material. The side of the hollow fiber membrane in contact with the liquid phase is a biofilm responsible for degrading organic matter and removing nutrients in sludge and sewage, and the biofilm carries microorganisms; the interior of the hollow fiber membrane is a gas phase containing oxygen sent in through an aeration device, which is responsible for supplying microorganisms in the biofilm.

[0012] As one of the preferred technical solutions, in the present application, the MABR membrane modules are connected in series end to end in the annular area formed by the MABR water tank and the sludge sewage pretreatment tank to form a membrane module series structure. The total air inlet formed by the membrane module series structure is connected to the aeration equipment, and the other end of the membrane module series structure is the air outlet.

[0013] As one of the preferred technical solutions, in the present application, the sludge and sewage pretreatment tank is a cylindrical tank body, the inner wall of the cylindrical tank body is coated with a waterproof coating, and a stirring device and a driving assembly are provided inside the sludge and sewage pretreatment tank.

[0014] As one of the preferred technical solutions, in the present application, the oxidant storage tank is a corrosion-resistant and opaque polytetrafluoroethylene material tank body, a pressure release valve is also provided on the oxidant storage tank, the outside of the oxidant storage tank is covered with an insulation layer, and a temperature control system is also provided inside the oxidant storage tank.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This application can increase the contact area between sludge and sewage and air through the fountain design, which helps to increase the oxygen content in the sludge and sewage and improve the efficiency of biological treatment; while improving the water purification effect, the addition of oxidants can effectively break down the sludge cell walls and release nutrients contained in the sludge, such as nitrogen and phosphorus, for the growth of microorganisms.

[0017] 2. This application has a simple structure and is easy to maintain. The components are tightly connected and the operation is stable and reliable. At the same time, this application adopts a modular design to facilitate daily maintenance and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural composition diagram of this application.

[0019] Figure 2This is a schematic diagram of the relative positions of the MABR tank, its MABR membrane components, and the sludge and sewage pretreatment tank in this application.

[0020] In the figure: 1. Nozzle and drive assembly; 2. MABR water tank; 3. Sludge and sewage overflow port; 4. MABR membrane assembly; 5. Sludge and sewage pretreatment tank; 6. Agitation device and drive assembly; 7. Oxidant storage tank; 8. Sludge and sewage return pipe; 9. Dosing pump; 10. Dosing pipe; 11. Sludge and water inlet pipe; 12. Marble guide surface; 13. Aeration equipment; 14. Drainage three-way regulating valve; 15. Sludge and drainage pipe. DETAILED DESCRIPTION

[0021] The technical solution described in this application is further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] like Figures 1 to 2 As shown, an annular MABR sludge and sewage enhanced treatment device includes a MABR tank 2. The MABR tank 2 is an annular structure. A sludge and sewage pretreatment tank 5 is integrally arranged at the center of the MABR tank 2. A nozzle and a drive assembly 1 are arranged at the top center of the sludge and sewage pretreatment tank 5. A marble guide surface 12 is arranged in the circumference of the nozzle and the drive assembly 1. The marble guide surface 12 is located on the top surface of the sludge and sewage pretreatment tank 5 and is integrated with the sludge and sewage pretreatment tank 5. The marble guide surface 12 extends from the top of the sludge and sewage pretreatment tank 5 toward the bottom of the MABR tank 2, and the bending part has a smooth transition.

[0024] The sludge and sewage pretreatment tank 5 has a chamber for accommodating sludge and sewage, and the bottom end of the sludge and sewage pretreatment tank 5 is connected to the sludge and water inlet pipe 11, which can pump sludge and sewage into the internal chamber of the sludge and sewage pretreatment tank 5 through a pumping structure.

[0025] The MABR water tank 2 forms an annular area at a circumferential position of the sludge and sewage pretreatment tank 5, and several MABR membrane modules 4 are arranged in the annular area. The MABR membrane modules 4 are connected to the aeration equipment 13. A sludge and sewage overflow port 3 is provided at the MABR water tank 2 at the bottom of the annular area. The sludge and sewage overflow port 3 is connected to the sludge and sewage return pipe 8, and the sludge and sewage return pipe 8 is connected to the sludge and water inlet pipe 11.

[0026] The sludge and sewage pretreatment tank 5 is also connected to a dosing pipe 10 directly or through a sludge and sewage return pipe 8 , and the dosing pipe 10 is connected to the oxidant storage tank 7 through a dosing pump 9 .

[0027] A sludge drainage pipe 15 is also provided in the annular area formed by the MABR pool 2. A drainage three-way regulating valve 14 is provided at the connection position between the sludge drainage pipe 15 and the sludge and water inlet pipe 11 to realize the on-off of drainage or return water.

[0028] Example 2

[0029] Continue to see Figures 1 to 2 An annular MABR sludge and sewage enhanced treatment device, wherein the nozzle and drive assembly 1 includes a nozzle pipeline and a pump body that drives the nozzle, and the pump body is driven by an internal combustion engine or an electric drive. The nozzle of the nozzle pipeline is located above the sludge and sewage pretreatment tank 5. It can spray sludge and sewage toward the location of the marble guide surface 12, forming a fountain shape. The sprayed sludge and sewage falls on the top surface formed by the marble guide surface 12 and flows into the annular area of ​​the MABR tank 2 through the marble guide surface 12.

[0030] Several stirring devices and drive components 6 are provided in the chamber of the sludge and sewage pretreatment tank 5. The stirring devices and drive components 6 can fully stir the sludge and sewage in the sludge and sewage pretreatment tank 5 and the oxidant sent into the oxidant storage tank 7, and facilitate the nozzle and drive component 1 to spray out the sludge and sewage.

[0031] Several MABR membrane components 4 are connected in series in an end-to-end manner through PU air pipes. The MABR membrane components 4 adopt a hollow fiber membrane structure made of polyvinylidene fluoride. A biofilm grows at the position where the hollow fiber membrane structure contacts the liquid phase. The biofilm carries various microbial species. Air is introduced into the tubular structure formed by the hollow fiber membrane structure to provide oxygen to the biofilm through the hollow fiber membrane structure.

[0032] The aeration device 13 is used to pump air into the MABR membrane assembly 4 to provide the microorganisms with oxygen required for growth and reproduction through the MABR membrane assembly 4. The aeration device 13 uses an air compressor as an air source, and introduces gas into the total air inlet of the membrane assembly series structure formed by the MABR membrane assembly 4 in series through the PU air pipe, thereby realizing the delivery of air into the MABR water tank 2. The other end of the membrane assembly series structure is the air outlet.

[0033] The structure and connection relationship of the remaining parts are the same as those described in Example 1, and will not be described again here to avoid tedious writing.

[0034] Based on the above embodiments, this specification uses the following space to explain in detail the technical features appearing therein and the role they play in this application, and introduces the working method of this application.

[0035] exist Figures 1 to 2On the basis of the present invention, the nozzle and drive assembly 1 described in this application is located above the sludge and sewage pretreatment tank 5, and is used to pressurize the pretreated sludge and sewage and spray it in the form of a fountain. The pressure load of the nozzle should ensure that the sprayed sludge and sewage can be evenly distributed on the marble guide surface 12, and the sludge and sewage flows into the annular area of ​​the MABR tank 2 through the marble guide surface 12. The drive component in the nozzle and drive assembly 1 can adopt an electric drive or internal combustion drive pumping structure to achieve the sludge and sewage in the chamber of the sludge and sewage pretreatment tank 5 being pumped into the nozzle pipeline and sprayed out at a certain pressure through the nozzle at the top.

[0036] In this application, the MABR tank 2 is the primary site for wastewater denitrification and carbon removal. It is designed around a central structure formed by a sludge and wastewater pretreatment tank 5 and a marble guide surface 12, forming an annular treatment space circumferentially around the aforementioned structure. The MABR tank 2 is constructed of reinforced concrete, and the bottom of the MABR tank 2 is paved with MABR membrane modules 4. These modules are connected end-to-end via PU air pipes and connected to aeration equipment 13 at the main air inlet of the series structure.

[0037] In the present application, the sludge and sewage overflow port 3 can discharge the sludge and water in the annular area of ​​the MABR tank 2 for sewage treatment, and circulate or discharge through the sludge and sewage return pipe 8 or the sludge drainage pipe 15 connected to the bottom.

[0038] In the present application, the MABR membrane assembly 4 is a key component in the MABR pool 2. The MABR membrane assembly 4 is made of polyvinylidene fluoride material, has good air permeability and biocompatibility, and can support the growth, reproduction and degradation of microorganisms and organic matter. The MABR membrane assembly 4 includes a hollow fiber membrane, which can divide the annular area of ​​the MABR pool 2 into two parts, namely, a gas phase part composed of the inner cavity of the hollow fiber membrane and a liquid phase part in which the hollow fiber membrane contacts the sludge and sewage in the annular area. In the gas phase part, it can accommodate the air sent by the aeration device 13 and realize the effect of supplying oxygen in the direction of the liquid phase part. The hollow fiber membrane is also covered with a biofilm at the position in contact with the liquid phase part. The biofilm is mainly responsible for degrading organic matter in the sludge and sewage and removing nutrients in the sludge and sewage, such as nitrogen and phosphorus. The biofilm forms a layered structure due to the different concentration gradients of dissolved oxygen inside and outside. Different layered structures carry various microbial species. This layered structure allows different biodegradation processes to occur simultaneously, such as nitrification and denitrification.

[0039] In the present application, the sludge and sewage pretreatment tank 5 is a cylindrical tank body made of reinforced concrete, and the inner wall of the tank body is covered with a waterproof coating to ensure that the cylindrical tank body does not leak and enhance the corrosion resistance. The sludge and sewage pretreatment tank 5 is used to receive sludge and sewage from the municipal government, and can pretreat these sludge and sewage inside its chamber. A stirring device and a drive assembly 6 are also installed at the bottom of the chamber of the sludge and sewage pretreatment tank 5. The stirring device and the drive assembly 6 can adopt an oblique blade stirrer, and the two stirring blades are opposite and turned 45 degrees to form a better axial liquid flow at the stirring position. The sufficient stirring of the above structure helps to achieve sufficient stirring of the oxidant and the sludge and sewage, helps to increase the contact opportunities between the oxidizing free radicals and the liquid phase pollutants and the sludge extracellular polymers, promotes the sludge dehydration reaction, and improves the sludge cracking efficiency.

[0040] In this application, the oxidant tank 7 is used to store urea hydrogen peroxide solution (UHP, CH₄N₂O•H₂O₂) and ferrous iron solution (Fe(II)). The oxidant tank 7 is made of corrosion-resistant, opaque polytetrafluoroethylene (PTFE) material, which offers excellent chemical resistance and light-shielding properties, preventing UHP decomposition caused by light. The inner wall of the oxidant tank 7 should be coated with a specialized corrosion-resistant epoxy resin coating to provide additional protection from corrosion of the UHP contained within. An insulating layer should be added to the exterior of the oxidant tank 7 to maintain a stable internal temperature and prevent internal UHP decomposition caused by temperature fluctuations (UHP solution decomposes into oxygen and water above 40°C). Urea hydrogen peroxide solution is a common, relatively inexpensive, highly effective, and environmentally friendly solid peroxide-based oxidant. In aqueous media, UHP slowly generates CH₄N₂O and H₂O₂, exhibiting a degree of oxidizing activity. Due to this characteristic, UHP is widely used as an oxidant to remove persistent organic matter. Compared to H₂O₂, solid UHP offers significant advantages, including stronger bactericidal potency, a broader bactericidal spectrum, lower concentrations, and no residual toxicity. Its non-irritating residues make it not only convenient to handle in practical situations but also safe during transportation and storage. The presence of Fe(II) catalyzes UHP to produce highly oxidizing hydroxyl radicals (•OH), which can effectively reduce sludge capillary suction time, sludge specific resistance, sludge cake moisture content, and bound water content, demonstrating its potential for improving sludge dewatering performance.

[0041] The oxidant storage tank 7 should be equipped with a temperature control system to regulate the temperature within the oxidant storage tank 7 and ensure that the solution inside is within a safe and controllable temperature range. The temperature control system can be selected by those skilled in the art in the art, such as a temperature control system composed of a TCU temperature control unit.

[0042] The oxidant tank 7 should be equipped with a ventilation system to prevent the accumulation of gases released by UHP decomposition. When the pressure inside the oxidant tank 7 becomes too high, a pressure relief valve automatically opens to release the gases inside the oxidant tank 7, ensuring safety. The capacity of the oxidant tank 7 is determined by the amount of sludge and wastewater to be treated, ensuring a stable and continuous supply of oxidant during the sludge and wastewater treatment process.

[0043] In the present application, the sludge and sewage return pipe 8 can be connected to the dosing pipe 10 and the sludge and sewage overflow port 3 to realize the delivery of sludge and sewage into the sludge and sewage pretreatment tank 5 and the delivery of oxidant into the sludge and sewage pretreatment tank 5, which can avoid the problems of incomplete sludge dehydration and low removal rate of water phase pollutants caused by too short hydraulic retention time, and can realize the recycling treatment of sludge and sewage. A regulating valve is also provided in the sludge and sewage return pipe 8 to realize the monitoring and regulation of the flow rate and ensure the hydraulic balance of the MABR tank 2 and the sludge and sewage pretreatment tank 5.

[0044] The dosing pump 9 is used to deliver oxidant from the oxidant storage tank 7 to the sludge and sewage pretreatment tank 5. It features precise metering and stable delivery capabilities, ensuring accurate oxidant addition. Because the UHP liquid being delivered is somewhat corrosive, the dosing pump 9 is constructed of corrosion-resistant 316L stainless steel, and the seal material is resistant to corrosion, using fluororubber (FKM) to ensure tight sealing at the connection points. The oxidant delivery pipeline is primarily linear to minimize flow resistance and potential damage. Pressure relief valves and safety valves are installed at the corners of the pipeline to prevent rupture caused by overpressure.

[0045] In this application, the drainage three-way regulating valve 14 adopts a three-way ball valve. The drainage three-way regulating valve 14 is installed at the intersection of the sludge and sewage return pipe 8 and the sludge drainage pipe 15. By rotating the three-way ball valve, the flow direction of the internally transported liquid can be switched.

[0046] In this application, the sludge drainage pipe 15 is used to discharge the treated sludge and sewage. After a certain hydraulic retention time, a small amount of sludge and clean water in the system can be discharged. During the circulation treatment process, water quality indicators (such as COD, NH4 + 、NO3 - , TN) and sludge volume (VSS, SS), etc. When the water quality reaches the discharge standard and the sludge volume reaches a certain level, the sludge can be discharged from the device through the sludge discharge port.

[0047] The working process of this application is as follows:

[0048] In the first stage, the sludge and sewage are pretreated: the sludge and sewage mixed liquid in the municipal pipeline is pumped into the sludge and sewage pretreatment tank 5 through the sludge and water inlet pipe 11, and then the urea, hydrogen peroxide and divalent iron solution in the oxidant storage tank 7 are added to the sludge and sewage pretreatment tank 5 through the dosing pipe 10 and dosing pump 9. The stirring device and drive assembly 6 in the sludge and sewage pretreatment tank 5 are used to achieve stirring treatment of the added oxidant and the added sludge and sewage, achieving sufficient stirring and completing the pretreatment of the sludge and sewage. During the pretreatment process, the strong oxidizing free radicals released by the oxidant can break down the extracellular polymers of the sludge cells, promote the release and degradation of pollutants, and at the same time provide the nutrients required for the growth and reproduction of microorganisms on the biofilm in the MABR membrane assembly 4.

[0049] The second stage utilizes fountain-style biological treatment: pretreated sludge and wastewater are ejected in a fountain-like fashion through a nozzle and drive assembly 1, guided by a marble guide surface 12 into the annular area of ​​the MABR tank 2. The MABR membrane modules 4 within the annular area of ​​the MABR tank 2 provide an environment for microorganisms to attach and grow. Simultaneously, aeration equipment 13 delivers oxygen to the MABR membrane modules 4, providing the oxygen necessary for microbial growth and reproduction. The microorganisms in the sludge and wastewater within the MABR tank 2 gradually degrade organic matter, thereby purifying the water.

[0050] The third stage is sludge and sewage return: the sludge and sewage after microbial treatment enters the sludge and sewage return pipe 8 through the sludge and sewage overflow port 3 at the bottom of the MABR tank 2, and is re-sent to the sludge and sewage pretreatment tank 5 through the sludge and sewage return pipe 8 and the sludge and water inlet pipe 11 to realize the sludge and sewage recycling treatment. During the recycling treatment process, the organic matter in the sludge and sewage is continuously decomposed by microorganisms, achieving sludge dehydration and reduction, and gradually improving the water quality, and finally achieving the effect that the sewage discharged through the drainage three-way regulating valve 14 and the sludge drainage pipe 15 meets the discharge standards and only produces a small amount of sludge.

[0051] Finally, although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An annular MABR sludge sewage enhanced treatment device, comprising a MABR tank (2), characterized in that: The MABR tank (2) is an annular structure. A sludge and sewage pretreatment tank (5) is provided at the middle position of the MABR tank (2). The sludge and sewage pretreatment tank (5) is connected to the sludge and water inlet pipe (11) of the sludge and sewage discharge pipe. A nozzle and a driving assembly (1) are provided at the outlet position of the sludge and sewage pretreatment tank (5). A marble guide surface (12) is provided around the nozzle and the driving assembly (1). The marble guide surface (12) is distributed on the sludge and sewage pretreatment tank (5). The MABR tank (2) is provided with a plurality of MABR membrane assemblies (4). The plurality of MABR membrane assemblies (4) are connected to the aeration equipment (13). The MABR tank (2) is provided with a plurality of sludge and sewage overflow ports (3) at the bottom thereof, the sludge and sewage overflow ports (3) being respectively connected to the sludge and sewage return pipe (8) and the sludge drainage pipe (15), the sludge and sewage return pipe (8) and the sludge drainage pipe (15) being respectively connected to the sludge drainage pipe inlet and water inlet pipe (11), and a drainage three-way regulating valve (14) being provided at the position where the sludge drainage pipe (15) is connected to the sludge and sewage return pipe (8); the sludge and sewage pretreatment tank (5) is also connected to a dosing pipe (10), and the dosing pipe (10) is connected to the oxidant storage tank (7) via a dosing pump (9).

2. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The nozzle and drive assembly (1) comprises a nozzle pipeline connected to the interior of the sludge and sewage pretreatment tank (5), and a pump body for driving the nozzle, wherein the pump body is driven by an internal combustion engine or electricity.

3. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The upper surface of the marble guide surface (12) is a smooth plane and smoothly transitions from the top of the sludge and sewage pretreatment tank (5) to the bottom of the MABR tank (2). The sludge and sewage sprayed by the nozzle and the driving assembly (1) flows into the MABR tank (2) provided with the MABR membrane assembly (4) through the upper surface of the marble guide surface (12).

4. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The MABR membrane assembly (4) includes a hollow fiber membrane made of polyvinylidene fluoride material. The side of the hollow fiber membrane in contact with the liquid phase is a biofilm responsible for degrading organic matter and removing nutrients in sludge and sewage, and the biofilm carries microorganisms; the interior of the hollow fiber membrane is a gas phase containing oxygen sent in through an aeration device (13), which is responsible for supplying microorganisms in the biofilm.

5. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The MABR membrane components (4) are connected end to end in series in the annular area formed by the MABR water tank (2) and the sludge sewage pretreatment tank (5) to form a membrane component series structure. The total air inlet formed by the membrane component series structure is connected to the aeration equipment (13), and the other end of the membrane component series structure is an air outlet.

6. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The sludge and sewage pretreatment tank (5) is a cylindrical tank body, the inner wall of which is coated with a waterproof coating, and a stirring device and a driving component (6) are provided inside the sludge and sewage pretreatment tank (5).

7. The annular MABR sludge and sewage enhanced treatment device according to claim 1 is characterized in that: The oxidant storage tank (7) is a corrosion-resistant and light-proof polytetrafluoroethylene material tank body. A pressure release valve is also provided on the oxidant storage tank (7). The outside of the oxidant storage tank (7) is coated with a heat insulation layer, and a temperature control system is also provided inside the oxidant storage tank (7).

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