Rapid culture equipment for aerobic granular sludge

Abstract

The invention relates to the technical field of aerobic granular sludge processes, in particular to aerobic granular sludge rapid culture equipment which comprises a module tank and a top cover, an inner-layer tank is fixedly connected to the inner side of the module tank, and a servo motor is mounted on the inner side of the inner-layer tank; the output end of the servo motor penetrates through the inner-layer tank and is rotationally connected with the inner-layer tank through a sealing piece, the output end of the servo motor is fixedly connected with a mixing shaft, a contact groove is fixedly connected between the inner-layer tank and the module tank, the mixing shaft is located on the inner side of the contact groove, and the left side of the module tank is fixedly connected with an input pipe; the module tank and the top cover are assembled in a split mode to form a closed space, external impurities are prevented from being mixed in the closed space, flexible capacity expansion is achieved by means of the branch pipe design of the input pipe and the agent pipe, different sewage treatment pressures are dealt with, a guide hopper, fine filtration filler and a flow guide purification structure of coarse filtration filler are matched, follow-up operation is facilitated, and the service life of the module tank is prolonged. And during maintenance, the device can be conveniently disassembled without long-time shutdown.

Description

Technical Field

[0001] This invention relates to the field of aerobic granular sludge process technology, specifically to a rapid aerobic granular sludge cultivation device. Background Technology

[0002] As is well known, aerobic granular sludge process is a highly efficient biological treatment technology in wastewater treatment. It achieves simultaneous nitrogen and phosphorus removal and organic matter degradation by cultivating tightly packed granular sludge. It is characterized by its small footprint, high efficiency, and the granular sludge creates anaerobic, anoxic, and aerobic microenvironments, allowing for the simultaneous completion of multiple reactions. Its settling speed is much faster than that of ordinary flocculent sludge, exhibiting strong resistance to shock loads. Furthermore, the reactor has a high volumetric loading capacity, significantly reducing the required building area, making it suitable for applications with limited land. It also results in minimal sludge loss, strong adaptability to fluctuations in water quality and quantity, and stable operation. In existing technologies, most aerobic granular sludge culture water treatment processes are carried out in reaction tanks. Although they can effectively and continuously treat aerobic granular sludge culture water, we have found that they are mostly carried out in open spaces, making it easy for external impurities to fall in. At the same time, equipment maintenance usually requires long-term shutdowns, and the treated water requires additional processes after subsequent treatment, so the efficiency needs to be improved. Based on the above-mentioned situation, we found that existing aerobic granular sludge cultivation equipment has difficulty in avoiding the above problems at the same time. Therefore, we propose a modular approach that allows for quick use of the equipment by connecting sludge pipes and drainage pipes, and can be added according to the sewage treatment pressure. It can also operate in a relatively closed environment, reducing the impact of the external environment while allowing for further treatment of the water body to facilitate its introduction into subsequent processes. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an aerobic granular sludge rapid cultivation device. It features modular design, allowing for rapid deployment by connecting sludge pipes and drainage pipes, and the ability to be expanded according to wastewater treatment pressure. Furthermore, it operates in a relatively enclosed environment, reducing the impact of external environmental factors while enabling further water treatment for subsequent processes.

[0004] (II) Technical Solution The above-mentioned technical objective of the present invention is achieved through the following technical solution: an aerobic granular sludge rapid cultivation device, comprising a modular tank and a top cover, wherein an inner tank is fixedly connected to the inner side of the modular tank, a servo motor is installed on the inner side of the inner tank, the output end of the servo motor passes through the inner tank and is rotatably connected to the inner tank through a sealing element, a mixing shaft is fixedly connected to the output end of the servo motor, a contact groove is fixedly connected between the inner tank and the modular tank, the mixing shaft is located inside the contact groove, an input pipe is fixedly connected to the left side of the modular tank, a reagent pipe is fixedly connected to the left side of the modular tank, two decanting strips are fixedly connected to the inner side of the modular tank, an aeration pipe is fixedly connected between the modular tank and the inner tank, an aeration device is connected to the aeration pipe, and a sludge valve plate is provided at the bottom of the modular tank; The decanting strip includes a square tube with a drainage trough at the bottom and decanting holes on both sides. The outer side of the square tube is fixedly connected to the inner tank. The drainage trough is located inside the inner tank, and the decanting holes are located between the module tank and the inner tank.

[0005] Using the above technical solution, the modular tank with a top cover facilitates modular installation. During use, wastewater is introduced through the inlet pipe, and the required chemicals are introduced through the chemical pipe. The water falls into the tank and comes into contact with the chemicals, and the mixing is promoted by the rotation of the mixing shaft driven by a servo motor. When wastewater is introduced, the water rises. Wastewater from the previous batch of treatment enters the square tube through the decanting holes located between the modular tank and the inner tank, and then falls into the inner tank through the trough. During this process, organic pollutants in the wastewater penetrate into the granular sludge and are partially converted into biopolymers for storage, while phosphates are released. When the granular sludge is placed in the aqueous phase and aerated through the aeration pipes by the aeration device, the released phosphates are absorbed by the granular sludge and returned to the microorganisms from the aqueous phase. At the same time, biodegradable pollutant components are oxidized, and ammonium ions in the wastewater are oxidized to nitrates in the sludge. The bacteria in the granular sludge convert nitrates into nitrogen gas and remove it from the water through the organic matter and biopolymers stored during anaerobic conditions. The granular sludge then settles to the bottom of the modular tank to complete a single reaction cycle. The entire reaction process is controlled inside the modular tank and isolated from the external environment. It can also be quickly loaded and unloaded by connecting the input pipe, reagent pipe and aeration pipe to external equipment.

[0006] The invention is further configured such that: a water pipe is slidably connected to the top of the mud valve plate via a sealing element, the water pipe is fixedly connected to the bottom of the inner tank, and a mud discharge chamber is fixedly connected to the bottom of the modular tank.

[0007] Using the above technical solution, by setting up a water pipe, the water falls into the inner tank through the trough at the bottom of the square pipe and is eventually output to the subsequent process from the water pipe at the bottom of the inner tank.

[0008] The present invention is further configured such that: a telescopic cylinder is fixedly connected to the bottom of the sludge discharge chamber, the telescopic end of the telescopic cylinder passes through the sludge discharge chamber and is slidably connected to the bottom of the sludge discharge chamber through a sealing element, the top of the telescopic end of the telescopic cylinder is fixedly connected to a mud valve plate, and a sealing ring is fixedly connected to the outer side of the bottom of the mud valve plate.

[0009] By adopting the above technical solution, a telescopic cylinder can be installed to push and pull the mud valve plate, creating a gap between the mud valve plate and the modular tank to output the bottom part of the sludge. This part of the sludge can be output along the sludge discharge chamber for unified collection. The sealing ring installed improves the sealing performance when the mud valve plate and the modular tank are in contact.

[0010] The present invention is further configured such that: a connecting flange is provided on the outer side of the bottom of the top cover and the outer side of the top of the inner tank; the top connecting flange and the bottom connecting flange are installed by bolts; and a sealing ring is provided between the top connecting flange and the bottom connecting flange.

[0011] The above technical solution uses connecting flanges and bolts to install the inner tank and top cover, and allows for easy disassembly to adjust the internal structure. The sealing ring is used to improve the sealing between the top cover and the inner tank.

[0012] The invention is further configured such that: a column is fixedly connected to the top of the top cover, and a guide bucket is fixedly connected to the inner side of the inner tank, the guide bucket being located at the bottom of the decanting strip.

[0013] By adopting the above technical solution, the water falling from the decanting strip can be easily guided by the guide bucket, and the column is used to install and support the top cover and the bottom structure.

[0014] The present invention is further configured such that: a connecting sleeve is fixedly connected to the bottom of the column, a hollow frame is fixedly connected to the top of the connecting sleeve, an adhesive piece is fixedly connected to the outer side of the hollow frame, and the outer side of the adhesive piece contacts the inner side of the guide bucket.

[0015] By adopting the above technical solution, the internal processing components can be easily installed by setting a connecting sleeve and a hollow frame. The set adhesive piece is attached to the inside of the guide bucket, which allows the water to flow along the adhesive piece to the inside of the adhesive piece.

[0016] The present invention is further configured such that: a mesh frame is fixedly connected to the bottom of the hollow frame, the mesh frame is fixedly connected to the connecting sleeve on the side near the connecting sleeve, two layers of partition mesh are fixedly connected to the inner side of the mesh frame, and the top of the partition mesh is fixedly connected to the hollow frame.

[0017] By adopting the above technical solution, and by setting up a mesh frame, most of the water will fall between the outer separating mesh and the mesh frame when it passes through. After being filtered by the two layers of separating mesh and the mesh frame, it will be discharged downwards from between the connecting sleeve and the mesh frame.

[0018] The present invention is further configured such that: fine filter media is filled between the inner partition mesh and the mesh frame, and coarse filter media is filled between the inner partition mesh and the outer partition mesh.

[0019] By adopting the above technical solution, and by setting coarse filter media in combination with fine filter media, the water will pass through the coarse filter media and fine filter media when it passes through the separator to filter the inside, so as to facilitate subsequent treatment.

[0020] The present invention is further configured such that: the fine filter packing is activated carbon packing, and the coarse filter packing is quartz sand packing.

[0021] By adopting the above technical solution, activated carbon packing is set as fine filter packing. It has a porous structure and a certain adsorption capacity. It can not only physically filter and intercept residual small flocs and broken fine sludge particles in the water, but also adsorb a small amount of undegraded small molecule organic matter in the water, reducing interference from subsequent treatment. Quartz sand packing, as coarse filter packing, can effectively remove residual suspended particles and avoid affecting the effective action of disinfectant.

[0022] The present invention is further configured such that: both the input pipe and the reagent pipe are externally connected to branch pipes, and the two branch pipes are respectively externally connected to a reagent supply device and a sewage supply device.

[0023] By adopting the above technical solution and setting up branch pipes, it is convenient to input sewage and chemicals from external chemical supply devices and sewage supply devices into the interior of the modular tank. At the same time, branch pipes can be installed with multiple devices simultaneously to facilitate the addition of additional devices to cope with high-pressure operation conditions.

[0024] (III) Beneficial Effects Compared with the prior art, the present invention provides an aerobic granular sludge rapid cultivation device, which has the following beneficial effects: This aerobic granular sludge rapid cultivation equipment, with its modular tanks and top cover, allows for easy modular installation. During operation, wastewater is introduced through the inlet pipe, and the required chemicals are introduced through the chemical pipe. The water, upon entering, comes into contact with the chemicals, and a servo motor-driven mixing shaft promotes mixing. When wastewater is introduced, it rises, and the wastewater from the previous batch enters the square tube through the decanting holes located between the modular tank and the inner tank, then falls into the inner tank via a trough. During this process, organic pollutants in the wastewater penetrate into the granular sludge and are partially converted into biopolymers for storage. Simultaneously, phosphoric acid... Salt is released into the aqueous phase. When the granular sludge is aerated through the aeration pipe by the aeration device, the released phosphate is taken up by the granular sludge and returned to the microorganisms from the aqueous phase. At the same time, biodegradable pollutant components are oxidized, and ammonium ions in the wastewater are oxidized to nitrates in the sludge. The bacteria in the granular sludge convert nitrates into nitrogen gas and remove it from the water through the organic matter and biopolymers stored during anaerobic conditions. The granular sludge then settles to the bottom of the modular tank to complete a single reaction cycle. The entire reaction process is controlled inside the modular tank and isolated from the external environment. It can also be quickly loaded and unloaded by connecting the input pipe, reagent pipe and aeration pipe to external equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the main body in this invention; Figure 3 This is a schematic diagram of the decanting bar structure in this invention; Figure 4 This is a schematic diagram of the internal structure of the wire frame in this invention; Figure 5 This is a schematic diagram of the internal structure of a part of the present invention; Figure 6 This is a schematic diagram of the assembly of the main structure in this invention.

[0026] In the diagram: 1. Modular tank; 2. Top cover; 3. Inner tank; 4. Servo motor; 5. Mixing shaft; 6. Contact groove; 7. Input pipe; 8. Chemical pipe; 9. Decanting bar; 91. Square tube; 92. Water trough; 93. Decanting hole; 10. Aeration pipe; 11. Mud valve plate; 12. Water pipe; 13. Mud discharge chamber; 14. Telescopic cylinder; 15. Connecting flange; 16. Column; 17. Guide bucket; 18. Connecting sleeve; 19. Hollow frame; 20. Adhesive sheet; 21. Mesh frame; 22. Separating mesh; 23. Fine filter media; 24. Coarse filter media. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 Please see Figure 1-6 An aerobic granular sludge rapid cultivation device includes a modular tank 1 and a top cover 2. An inner tank 3 is fixedly connected to the inner side of the modular tank 1. A servo motor 4 is installed on the inner side of the inner tank 3. The output end of the servo motor 4 passes through the inner tank 3 and is rotatably connected to the inner tank 3 through a sealing element. A mixing shaft 5 is fixedly connected to the output end of the servo motor 4. A contact groove 6 is fixedly connected between the inner tank 3 and the modular tank 1. The mixing shaft 5 is located inside the contact groove 6. An input pipe 7 is fixedly connected to the left side of the modular tank 1. A chemical pipe 8 is fixedly connected to the left side of the modular tank 1. Two decanting strips 9 are fixedly connected to the inner side of the modular tank 1. An aeration pipe 10 is fixedly connected between the modular tank 1 and the inner tank 3. An aeration device is connected to the aeration pipe 10. A sludge valve plate 11 is provided at the bottom of the modular tank 1. The decanting bar 9 includes a square tube 91, with a drainage trough 92 at the bottom of the square tube 91 and decanting holes 93 on both sides of the square tube 91. The outer side of the square tube 91 is fixedly connected to the inner tank 3. The drainage trough 92 is located inside the inner tank 3, and the decanting holes 93 are located between the module tank 1 and the inner tank 3. By setting up modular tank 1 with top cover 2, the structure can be easily installed in a modular fashion. During use, wastewater can be introduced through input pipe 7, and the required chemicals can be introduced through chemical pipe 8. After the water falls in, it comes into contact with the chemicals added through chemical pipe 8, and the mixing shaft 5, driven by servo motor 4, rotates to promote mixing. When wastewater is introduced, the water body moves upwards. Wastewater from the previous batch of treatment enters the square tube 91 through decanting holes 93 located between modular tank 1 and inner tank 3, and falls into inner tank 3 through drop trough 92. During this process, organic pollutants in the wastewater penetrate into the granular sludge and are partially converted into biopolymers for storage. Simultaneously, phosphates are released. When the granular sludge is placed in the aqueous phase and aerated through the aeration pipe 10, the released phosphate is absorbed by the granular sludge and returned to the microorganisms from the aqueous phase. At the same time, biodegradable pollutant components are oxidized, and ammonium ions in the wastewater are oxidized to nitrates in the sludge. The bacteria in the granular sludge convert nitrates into nitrogen gas and remove them from the water through the organic matter and biopolymers stored during anaerobic conditions. The granular sludge then settles to the bottom of the modular tank 1 to complete a single reaction cycle. The entire reaction process is controlled inside the modular tank 1 and isolated from the external environment. It can be quickly loaded and unloaded by connecting the input pipe 7, the reagent pipe 8, and the aeration pipe 10 to external equipment.

[0029] The top of the mud valve plate 11 is slidably connected to a water pipe 12 via a seal. The water pipe 12 is fixedly connected to the bottom of the inner tank 3. The bottom of the modular tank 1 is fixedly connected to a sludge discharge chamber 13. Water, after falling into the inner tank 3 through the water trough 92 at the bottom of the square pipe 91 via the water pipe 12, is ultimately discharged to the subsequent process via the water pipe 12 at the bottom of the inner tank 3. The bottom of the sludge discharge chamber 13 is fixedly connected to a telescopic cylinder 14. The telescopic end of the telescopic cylinder 14 passes through the sludge discharge chamber 13 and is slidably connected to the bottom of the sludge discharge chamber 13 via a seal. The top of the telescopic end of the telescopic cylinder 14 is fixedly connected to the mud valve plate 11. A sealing ring is fixedly connected to the outer side of the bottom of the mud valve plate 11. By extending and retracting the telescopic cylinder 14, the mud valve plate 11 can be pushed and pulled, creating a gap between the mud valve plate 11 and the modular tank 1 to discharge the bottom portion of sludge. This portion of sludge can be discharged along the sludge discharge chamber 13 for unified collection. The sealing ring is located at... When the mud valve plate 11 and the modular tank 1 are fitted together, the sealing performance is improved. The outer side of the bottom of the top cover 2 and the outer side of the top of the inner tank 3 are both provided with connecting flanges 15. The top connecting flange 15 and the bottom connecting flange 15 are installed by bolts, and a sealing ring is provided between the top connecting flange 15 and the bottom connecting flange 15. The connecting flange 15 and the bolts are used to install the inner tank 3 and the top cover 2, and it is easy to disassemble them to adjust the internal structure. The sealing ring is used to improve the sealing performance between the top cover 2 and the inner tank 3. The outside of the input pipe 7 and the chemical pipe 8 are both connected to branch pipes. The two branch pipes are connected to the chemical supply device and the sewage supply device respectively. By setting the branch pipes, it is easy to input the sewage and chemical from the external chemical supply device and the sewage supply device into the interior of the modular tank 1. At the same time, the branch pipes can be installed with multiple devices at the same time to facilitate the addition of additional devices to cope with high-pressure operation conditions.

[0030] Working principle of this embodiment: During use, the input pipe 7 and the reagent pipe 8 are connected to the sewage and reagent supply devices respectively, allowing the material to be introduced into the area between the module tank 1 and the inner tank 3. The servo motor 4 drives the mixing shaft 5 to rotate in the contact groove 6 to promote thorough mixing of the material. When sewage is injected, the water level rises, pushing the previous batch of treated water into the subsequent stage. After the new sewage comes into contact with the granular sludge, organic pollutants are converted into biopolymers for storage, and phosphates are released into the aqueous phase. Subsequently, the aeration pipe 10 is connected to an external aeration device for aeration. The granular sludge absorbs phosphates and returns them to the microorganisms, while simultaneously oxidizing biodegradable pollutants and converting ammonium ions into nitrates, which are then stored. Organic matter converts nitrates into nitrogen gas to complete nitrogen and phosphorus removal. After treatment, the water enters the square pipe 91 through the decanting hole 93 of the decanting bar 9, falls into the guide bucket 17 of the inner tank 3 through the drop trough 92, and flows into the mesh frame 21 along the bonding plate 20. After being filtered by the double layer of quartz sand coarse filter 24 and activated carbon fine filter 23, impurities are intercepted and residual organic matter is adsorbed. After the granular sludge settles to the bottom of the module tank 1, the telescopic cylinder 14 drives the sludge valve plate 11 to move, and the sludge is discharged and collected through the sludge discharge chamber 13. The filtered clean water is output to the subsequent process through the water pipe 12 at the bottom of the inner tank 3. The whole process forms a closed loop to realize the rapid cultivation of aerobic granular sludge and sewage treatment. Example

[0031] refer to Figure 1-4 An aerobic granular sludge rapid cultivation device also includes a column 16, which is fixedly connected to the top of the top cover 2. A guide bucket 17 is fixedly connected to the inner side of the inner tank 3. The guide bucket 17 is located at the bottom of the decanting bar 9. By setting the guide bucket 17, the water falling in the decanting bar 9 can be easily guided. The column 16 is used to install and support the top cover 2 and the bottom structure. A connecting sleeve 18 is fixedly connected to the bottom of the column 16. A hollow frame 19 is fixedly connected to the top of the connecting sleeve 18. An adhesive piece 20 is fixedly connected to the outer side of the hollow frame 19. The outer side of the adhesive piece 20 contacts the inner side of the guide bucket 17. By setting the connecting sleeve 18 in conjunction with the hollow frame 19, the internal treatment components can be easily installed. The adhesive piece 20 is attached to the inner side of the guide bucket 17, allowing the water to flow along the adhesive piece 20 to the inner side of the adhesive piece 20.

[0032] The bottom of the perforated frame 19 is fixedly connected to a mesh frame 21. The side of the mesh frame 21 closest to the connecting sleeve 18 is fixedly connected to the connecting sleeve 18. Two layers of separator mesh 22 are fixedly connected to the inner side of the mesh frame 21. The top of the separator mesh 22 is fixedly connected to the perforated frame 19. By setting the mesh frame 21, most of the water will fall between the outer separator mesh 22 and the mesh frame 21 when it passes through. After being filtered by the two layers of separator mesh 22 and the mesh frame 21, it will be discharged downwards between the connecting sleeve 18 and the mesh frame 21. The space between the inner separator mesh 22 and the mesh frame 21 is filled with fine filter media 23, and the space between the inner separator mesh 22 and the outer separator mesh 22 is filled with coarse filter media 24. By setting the coarse filter media 24, the water can be effectively filtered. 4. In conjunction with the fine filter media 23, when the water passes through the separator 22, it will pass through the coarse filter media 24 to filter the interior, so as to facilitate subsequent treatment. The fine filter media 23 is activated carbon media, and the coarse filter media 24 is quartz sand media. By setting the activated carbon media as the fine filter media 23, it has a porous structure and a certain adsorption capacity. It can not only physically filter and intercept the residual small flocs and broken fine sludge particles in the water, but also adsorb a small amount of undegraded small molecule organic matter in the water, reducing interference with subsequent treatment. The quartz sand media as the coarse filter media 24 can effectively remove residual suspended particles and avoid affecting the effective action of disinfectants.

[0033] Working principle of this embodiment: The column 16 at the top of the top cover 2 serves to support the top cover 2 and the bottom structure. The connecting sleeve 18 and the hollow frame 19 at the bottom also provide an installation base for the filter components. The water falling from the decanting strip 9 is first guided by the guide bucket 17 located at its bottom. The bonding piece 20 on the outside of the hollow frame 19 is in close contact with the inside of the guide bucket 17, further directing the water into the mesh frame 21 area inside the bonding piece 20. The two layers of partition mesh 22 fixed inside the mesh frame 21 form the filter chamber. The outer partition mesh 22 and the mesh frame 2 The space between the inner and outer partitions 22 is filled with quartz sand coarse filter media 24, which can effectively remove residual suspended particles in the water and avoid affecting the subsequent treatment effect. The space between the inner and outer partitions 22 is filled with activated carbon fine filter media 23, which has both physical interception and adsorption functions due to its porous structure. It can intercept small flocs and broken fine sludge particles, and adsorb undegraded small molecule organic matter, reducing interference in subsequent processes. Finally, the water after double-layer filtration is discharged downward from between the connecting sleeve 18 and the mesh frame 21, completing the water diversion and purification treatment.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerobic granular sludge rapid cultivation device, comprising a modular tank (1) and a top cover (2), characterized in that: The inner tank (3) is fixedly connected to the inner side of the module tank (1). A servo motor (4) is installed on the inner side of the inner tank (3). The output end of the servo motor (4) passes through the inner tank (3) and is rotatably connected to the inner tank (3) through a sealing element. A mixing shaft (5) is fixedly connected to the output end of the servo motor (4). A contact groove (6) is fixedly connected between the inner tank (3) and the module tank (1). The mixing shaft (5) is located inside the contact groove (6). An input pipe (7) is fixedly connected to the left side of the module tank (1). A chemical pipe (8) is fixedly connected to the left side of the module tank (1). Two decanting strips (9) are fixedly connected to the inner side of the module tank (1). An aeration pipe (10) is fixedly connected between the module tank (1) and the inner tank (3). An aeration device is connected to the aeration pipe (10). A mud valve plate (11) is provided at the bottom of the module tank (1). The decanting bar (9) includes a square tube (91), with a drainage trough (92) at the bottom of the square tube (91) and decanting holes (93) on both sides of the square tube (91). The outer side of the square tube (91) is fixedly connected to the inner tank (3). The drainage trough (92) is located inside the inner tank (3), and the decanting holes (93) are located between the module tank (1) and the inner tank (3).

2. The aerobic granular sludge rapid cultivation equipment according to claim 1, characterized in that: The top of the mud valve plate (11) is slidably connected to a water pipe (12) via a seal. The water pipe (12) is fixedly connected to the bottom of the inner tank (3). The bottom of the module tank (1) is fixedly connected to a mud discharge chamber (13).

3. The aerobic granular sludge rapid cultivation equipment according to claim 2, characterized in that: The bottom of the sludge discharge chamber (13) is fixedly connected to a telescopic cylinder (14). The telescopic end of the telescopic cylinder (14) passes through the sludge discharge chamber (13) and is slidably connected to the bottom of the sludge discharge chamber (13) through a sealing element. The top of the telescopic end of the telescopic cylinder (14) is fixedly connected to the mud valve plate (11). A sealing ring is fixedly connected to the outer side of the bottom of the mud valve plate (11).

4. The aerobic granular sludge rapid cultivation equipment according to claim 1, characterized in that: The outer side of the bottom of the top cover (2) and the outer side of the top of the inner tank (3) are provided with connecting flanges (15). The top connecting flange (15) and the bottom connecting flange (15) are installed by bolts, and a sealing ring is provided between the top connecting flange (15) and the bottom connecting flange (15).

5. The aerobic granular sludge rapid cultivation equipment according to claim 1, characterized in that: The top of the top cover (2) is fixedly connected to a column (16), and the inner side of the inner tank (3) is fixedly connected to a guide bucket (17), which is located at the bottom of the decanting bar (9).

6. The aerobic granular sludge rapid cultivation equipment according to claim 5, characterized in that: The bottom of the column (16) is fixedly connected to a connecting sleeve (18), the top of the connecting sleeve (18) is fixedly connected to a hollow frame (19), the outer side of the hollow frame (19) is fixedly connected to a bonding piece (20), and the outer side of the bonding piece (20) is in contact with the inner side of the guide bucket (17).

7. The aerobic granular sludge rapid cultivation equipment according to claim 6, characterized in that: The bottom of the hollow frame (19) is fixedly connected to a mesh frame (21). The side of the mesh frame (21) near the connecting sleeve (18) is fixedly connected to the connecting sleeve (18). Two layers of partition mesh (22) are fixedly connected to the inner side of the mesh frame (21). The top of the partition mesh (22) is fixedly connected to the hollow frame (19).

8. The aerobic granular sludge rapid cultivation equipment according to claim 7, characterized in that: Fine filter media (23) is filled between the inner partition mesh (22) and the mesh frame (21), and coarse filter media (24) is filled between the inner partition mesh (22) and the outer partition mesh (22).

9. The aerobic granular sludge rapid cultivation equipment according to claim 8, characterized in that: The fine filter packing (23) is activated carbon packing, and the coarse filter packing (24) is quartz sand packing.

10. The rapid cultivation equipment for aerobic granular sludge according to claim 1, characterized in that: Both the input pipe (7) and the medicine pipe (8) are connected to external branch pipes, and the two branch pipes are respectively connected to the medicine supply device and the sewage supply device.

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