A sequencing batch aerobic granular sludge reactor

Abstract

The invention discloses a sequencing batch aerobic granular sludge reactor, which relates to the technical field of sewage treatment, and comprises a reaction tank, which is divided into an aerobic granular sludge reaction chamber at the top and an anoxic static chamber at the bottom by a partition, and also comprises a sequencing batch water supply mechanism, an upward clean water discharge control mechanism, a multifunctional sludge stirring mechanism, a multifunctional aeration mechanism and a three-phase separation drainage mechanism. The sequencing batch water supply mechanism comprises a water supply cylinder, a sliding sleeve is fixedly connected to the middle of the partition, the inner side of the sliding sleeve is vertically slidably connected to the water supply cylinder, the bottom end of the water supply cylinder is fixedly connected to the middle of a piston circular plate, and the outer peripheral side of the piston circular plate is slidably connected to the inner wall of the anoxic static chamber; the sequencing batch aerobic granular sludge reactor adopts a sequencing batch sewage treatment process, and the sewage treatment steps are compact. When the clean water is discharged, it can be prevented that the mud filter layer is dispersed to cause the sewage entering the bottom of the aerobic granular sludge reaction chamber to mix with the clean water at the upper layer, so as to ensure the sewage treatment effect.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sequencing batch aerobic granular sludge reactor. Background Art

[0002] At present, aerobic granular sludge is a granular sludge formed by spontaneous aggregation of microorganisms under aerobic conditions to achieve efficient removal of pollutants in sewage. Compared with traditional flocculent activated sludge, aerobic granular sludge has larger sludge particle size, faster sedimentation rate and more compact layered structure, and integrates microorganisms of different properties (aerobic, anoxic and anaerobic microorganisms), which makes the aerobic granular sludge process feasible for simultaneous removal of nitrogen and phosphorus.

[0003] The specific process of aerobic granular sludge process: the sewage is sent to the bottom of the tank body with the help of a water distributor to form an expansion hydraulic bag, which lifts up the original mud filter layer in the tank body, allowing the clean water above the mud filter layer to be discharged, and then the original mud filter layer in the tank body is mixed with the sewage entering from the bottom through stirring, and then it is left to stand for the anoxic process. After the anoxic process is completed, aeration treatment is carried out. After standing, the aerobic granular sludge gradually forms sediments and forms a new mud filter layer;

[0004] Since the mud filter layer is composed of aerobic granular sludge and is not compact enough, the sewage sent into the bottom of the tank by the water distributor can easily disperse the mud filter layer, causing the sewage and the treated clean water on the upper layer of the mud filter layer to mix. Part of the sewage will be discharged with the clean water without being treated, affecting the sewage treatment effect. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a sequencing batch aerobic granular sludge reactor, in which an anoxic process is carried out in an anoxic standing chamber, and an aerobic granular sludge treatment process is carried out in an aerobic granular sludge reaction chamber through aeration, and a lifting tray and a supporting disc support the mud filter layer at the bottom of the aerobic granular sludge reaction chamber to move upward, and the clean water on the upper layer in the aerobic granular sludge reaction chamber is discharged, so that the mud filter layer can be prevented from spreading, resulting in the sewage entering the bottom of the aerobic granular sludge reaction chamber from mixing with the clean water on the upper layer, and the effect of sewage treatment can be ensured. As the lifting tray and the supporting disc move upward, the sewage in the anoxic standing chamber that has passed the anoxic process is synchronously sent to the bottom of the aerobic granular sludge reaction chamber, and new sewage can also be synchronously sent into the anoxic standing chamber. The sequencing batch sewage treatment process is adopted, and the steps of sewage treatment are compact, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a sequencing batch aerobic granular sludge reactor, comprising a reaction tank, wherein the reaction tank is divided into an aerobic granular sludge reaction chamber at the top and an anoxic static chamber at the bottom by a partition, and further comprising:

[0007] The sequential batch water supply mechanism comprises a water supply cylinder, a sliding sleeve is fixedly connected to the middle of the partition, the inner side of the sliding sleeve is vertically slidably connected to the water supply cylinder, the bottom end of the water supply cylinder is fixedly connected to the middle of the piston disc, the outer peripheral side of the piston disc is slidably connected to the inner wall of the anoxic static chamber, a one-way valve three is installed on the side of the reaction tank corresponding to the bottom end of the anoxic static chamber, a one-way valve two is inserted and installed on the piston disc, and a reaction chamber one-way water supply component is provided on the water supply cylinder;

[0008] The upward clean water discharge control mechanism is installed in the aerobic granular sludge reaction chamber, and the bottom of the upward clean water discharge control mechanism is connected to the top of the upper water cylinder;

[0009] Multifunctional sludge stirring mechanism, installed on the upward clean water discharge control mechanism;

[0010] Multifunctional aeration mechanism, installed on the upward clear water discharge control mechanism;

[0011] The three-phase separation drainage mechanism is installed on the top of the reaction tank.

[0012] The sewage is first sent to the anoxic static chamber for anoxic static chamber to allow anaerobic and anoxic bacteria to multiply in advance, and then sent to the aerobic granular sludge reaction chamber for aeration treatment through the multifunctional aeration mechanism. The aerobic granular sludge reaction chamber is used to treat the sewage with aerobic granular sludge. The aerobic granular sludge is an anaerobic environment, anoxic environment and aerobic environment from the inside to the outside, allowing anaerobic bacteria, anoxic bacteria and aerobic bacteria to play a leading role in different positions of the aerobic granular sludge, thereby achieving synchronous nitrogen and phosphorus removal;

[0013] The upward clean water discharge control mechanism can drive the upper water cylinder to move up and down relative to the sliding sleeve in the middle of the partition. The one-way valve 2 only allows the sewage below the piston disc to enter the upper part of the piston disc, and the one-way valve 3 only allows the sewage outside the reaction tank to enter the bottom of the anoxic static chamber.

[0014] When it is necessary to discharge clean water, the upward clean water discharge control mechanism drives the upper water cylinder to move upward relative to the sliding sleeve in the middle of the partition, and the upward clean water discharge control mechanism, the multifunctional sludge stirring mechanism and the mud filter layer formed at the bottom of the aerobic granular sludge reaction chamber move upward, and the clean water on the upper side of the mud filter layer is discharged, and the upper water cylinder also drives the piston circular plate to move upward in the anoxic static chamber. At this time, the sewage treated by anoxic static treatment above the piston circular plate in the anoxic static chamber enters the bottom of the aerobic granular sludge reaction chamber through the reaction chamber one-way water supply component on the upper water cylinder, and the sewage outside the reaction tank enters the space below the piston circular plate in the anoxic static chamber through the one-way valve three, and the multifunctional sludge stirring mechanism works to stir the mud filter layer and disperse the mud filter layer, and then the upward clean water discharge control mechanism drives the upper water cylinder to move downward relative to the sliding sleeve in the middle of the partition, and the piston circular plate moves downward with the upper water cylinder, and the sewage below the piston circular plate in the anoxic static chamber passes The sewage in the anoxic static chamber above the piston disk enters the anoxic static stage, and the multifunctional sludge stirring mechanism works again to mix the newly entered sewage in the aerobic granular sludge reaction chamber with the originally stirred mud filter layer. The multifunctional aeration mechanism aerates the sewage in the aerobic granular sludge reaction chamber, and the aerobic granular sludge begins to react. During aeration, the aerobic granular sludge can also be driven to move upward in the sewage to promote the mixing reaction of the aerobic granular sludge and the sewage. Then the multifunctional aeration mechanism stops working and stands to allow the reacted aerobic granular sludge to settle. The settled aerobic granular sludge forms a new mud filter layer at the bottom of the aerobic granular sludge reaction chamber. The three-phase separation drainage mechanism collects and discharges the aeration-treated gas, and can also prevent the aerobic granular sludge from crossing the three-phase separation drainage mechanism. Only clean water can cross the three-phase separation drainage mechanism and be in the upper layer of the aerobic granular sludge reaction chamber.

[0015] Furthermore, the reaction chamber one-way water supply assembly includes a one-way valve 1 and a water supply hole. The bottom side of the water supply cylinder is provided with a water supply hole, and the top side of the water supply cylinder is provided with a one-way valve 1. The one-way valve 1 only allows the sewage in the water supply cylinder to enter the aerobic granular sludge reaction chamber, and the sewage cannot flow in the opposite direction here. When the upward clean water discharge control mechanism drives the piston disc to move upward in the anoxic static chamber through the water supply cylinder, the sewage in the anoxic static chamber that is located above the piston disc and treated by anoxic static treatment enters the interior of the water supply cylinder through the water supply hole, and then enters the bottom of the aerobic granular sludge reaction chamber through the one-way valve 1, completing the transfer of the sewage after anoxic treatment to the aerobic granular sludge reaction chamber.

[0016] Furthermore, the upward clean water discharge control mechanism includes a lifting tray, a hollow cylinder, an upward control component and a top plate. The top of the reaction tank is equipped with an upward control component, and the top plate is installed on the upward control component. The top plate is located above the middle of the reaction tank, and the middle of the top plate is fixedly connected to the top of the hollow cylinder, and the bottom end of the hollow cylinder is fixedly connected to the middle of the lifting tray. The lifting tray is evenly provided with water holes, and the bottom center of the lifting tray is fixedly connected to the top of the upper water cylinder. The upward control component is used to drive the hollow cylinder to move up and down through the top plate, and the lifting tray and the upper water cylinder can be driven to move up and down by means of the hollow cylinder. The water holes allow the water below the lifting tray to be transferred to the top of the lifting tray. When the lifting tray moves upward with the hollow cylinder, the aerobic granular sludge deposition-formed mud filter layer is lifted up, so that the mud filter layer is in a stable state, and the expansion hydraulic bag formed by the water distributor is prevented from lifting the mud filter layer and dispersing the mud filter layer.

[0017] Furthermore, the multifunctional sludge stirring mechanism includes a sleeve, a stirring rod, a stirring blade, an aerobic granular sludge deposition support assembly and a sleeve rotation power assembly. The outer side of the hollow cylinder is rotatably sleeved with a sleeve, and a plurality of stirring rods are fixedly connected in an annular array on the bottom peripheral side of the sleeve. Each stirring rod is provided with a stirring blade. The bottom peripheral side of the sleeve is connected to an aerobic granular sludge deposition support assembly, and the top peripheral side of the sleeve is connected to a sleeve rotation power assembly. The sleeve rotation power assembly is installed at the bottom of the top plate. The sleeve rotation power assembly is used to drive the sleeve to rotate relative to the hollow cylinder. The sleeve drives the stirring rod and the stirring blade to rotate, and can stir the sewage when needed, disperse the mud filter layer, fully mix the sewage and the aerobic granular sludge, and promote the reaction of the aerobic granular sludge. The aerobic granular sludge deposition support assembly is located on the upper side of the lifting tray, and directly supports the mud filter layer formed by the aerobic granular sludge deposition instead of the lifting tray.

[0018] Furthermore, the aerobic granular sludge deposition support assembly includes a support disc and a water distribution hole, the outer peripheral side of the bottom end of the sleeve is fixedly connected to the middle of the support disc, the support disc is located on the upper side of the lifting tray, and the diameter of the support disc is smaller than the diameter of the lifting tray, and the support disc is provided with a water distribution hole at the position corresponding to the water permeable hole. The support disc serves as the main body of the aerobic granular sludge deposition support assembly, and the mud filter layer formed by the aerobic granular sludge deposition is mainly located on the upper side of the support disc. When the water distribution holes on the support disc correspond to the water permeable holes up and down, the water below the lifting tray can be smoothly transferred to the top of the lifting tray through the water distribution holes and the water permeable holes. When the water distribution holes on the support disc and the water permeable holes are staggered, it can prevent the aerobic granular sludge from falling to the bottom of the lifting tray through the water distribution holes and the water permeable holes when it settles, and it can also prevent the aerobic granular sludge from clogging the water permeable holes.

[0019] Furthermore, the multifunctional aeration mechanism includes a hollow sludge scraper rod, and a plurality of radiation channels are provided in a circular array inside the lifting tray, and the radiation channels are distributed radially along the lifting tray, and the ends of the radiation channels are connected to the inner side of the bottom of the hollow cylinder, and the upper edge of the lifting tray is connected to a circular array with hollow sludge scraper rods having the same number as the radiation channels, and the interior of each hollow sludge scraper rod is connected to the corresponding radiation channel, and the hollow sludge scraper rod is located on the upper side of the supporting disc, and an aeration head 2 is installed on the hollow sludge scraper rod, and the top of the hollow cylinder is connected to one end of an aeration pipeline 2 through a pipe joint, and the other end of the aeration pipeline 2 is connected to the air outlet of air pump 2, and air pump 2 is installed on the top plate.

[0020] The air pump 2 works to deliver air into the hollow cylinder through the pipe joint and the aeration pipeline 2. The air in the hollow cylinder enters the interior of the hollow sludge scraper through the radiation channel, and then is dispersed into the sewage in the aerobic granular sludge reaction chamber through the aeration head 2 to complete the aeration process. At this time, the hollow sludge scraper cooperates with the aeration head 2 to play the aeration process. When discharging clean water, the water distribution holes and the water permeable holes on the supporting disc are staggered, and the lifting tray and the supporting disc move up with the hollow cylinder. After the upper clean water is discharged, the sleeve rotation power assembly drives the sleeve to rotate relative to the hollow cylinder, and the sleeve drives the supporting disc relative to the lifting tray The sleeve rotates, and the mud filter layer on the supporting disc is scraped up by the lower side of the hollow sludge scraper to prevent the mud filter layer from condensing on the supporting disc and not falling off. Then the sleeve rotation power assembly controls the water distribution holes on the supporting disc to correspond to the water permeable holes. The lifting tray and the supporting disc move down with the hollow cylinder, and the sewage under the lifting tray is transferred to the upper area of ​​the supporting disc through the corresponding water distribution holes and water permeable holes. Then the sleeve rotation power assembly drives the sleeve, stirring rod and stirring blades to rotate again, and the aerobic granular sludge scraped up by the hollow sludge scraper is quickly mixed with the sewage above the supporting disc as the stirring of the stirring rod and stirring blades.

[0021] Furthermore, the three-phase separation drainage mechanism includes an annular exhaust pipe, an inverted V-shaped three-phase separation plate, air holes and an annular clean water overflow groove. An annular clean water overflow groove is provided in the center of the annular exhaust pipe, an inverted V-shaped three-phase separation plate is provided between the inner side of the annular exhaust pipe and the outer side of the annular clean water overflow groove, the sleeve passes through the middle of the annular clean water overflow groove, and the annular clean water overflow groove does not interfere with the rotation or up and down movement of the sleeve. The end of the inverted V-shaped three-phase separation plate is connected to the interior of the annular exhaust pipe through the air holes, the top of the annular exhaust pipe is connected to the bottom ends of two exhaust pipes, the inner side of the top of the reaction tank is provided with a limit sleeve vertically slidably connected to the exhaust pipe, and the top of the annular exhaust pipe is connected to a drainage height control assembly. The drainage height control component adjusts the position of the annular exhaust pipe and the inverted V-shaped three-phase separation plate at the top of the reaction tank according to the amount of aerobic granular sludge formed. When the amount of aerobic granular sludge formed is large, the annular exhaust pipe and the inverted V-shaped three-phase separation plate move up; when the amount of aerobic granular sludge formed is small, the annular exhaust pipe and the inverted V-shaped three-phase separation plate move down. When the aeration gas encounters the inverted V-shaped three-phase separation plate, it gathers at the top of the inverted V-shaped three-phase separation plate, and then enters the annular exhaust pipe through the air holes, and can be uniformly discharged through the annular exhaust pipe. The inverted V-shaped three-phase separation plates are staggered up and down in the area between the annular exhaust pipe and the annular clean water overflow trough, and a clean water gap is left between two adjacent inverted V-shaped three-phase separation plates to facilitate the passage of clean water while inhibiting the passage of aerobic granular sludge, thereby achieving the effect of three-phase separation. When the clean water needs to be discharged, the lifting tray and the supporting disc hold the mud filter layer upward, and the upper clean water passes through the inverted V-shaped three-phase separation plate through the clean water gap. When the clean water level is higher than the top of the annular clean water overflow trough, it enters the top of the annular clean water overflow trough.

[0022] Furthermore, the three-phase separation drainage mechanism also includes a drainage hose and a fixed side sleeve. The fixed side sleeve is installed on the side of the reaction tank. The bottom of the annular clean water overflow groove is connected to one end of the drainage hose, and the other end of the drainage hose is connected to the fixed side sleeve. The clean water entering the annular clean water overflow groove is discharged through the drainage hose.

[0023] Furthermore, it also includes a first-level aeration mechanism, which includes an aeration ring tube, an aeration head 1, an aeration pipeline 1 and an aeration supply assembly. An aeration ring tube is installed on the upper side of the partition, and an aeration head 1 distributed in a circular array is arranged on the aeration ring tube. The aeration ring tube is connected to one end of the aeration pipeline 1, and the other end of the aeration pipeline 1 extends to the outside of the reaction tank and is connected to the aeration supply assembly. If the aeration effect of the multifunctional aeration mechanism cannot meet the demand, the aeration supply assembly works to send air into the aeration ring tube through the aeration pipeline 1, and the air in the aeration ring tube is dispersed and exploded through the aeration head 1, and the air enters the area below the lifting tray, and the water distribution holes on the supporting disc are controlled to correspond to the water permeable holes. The air below the lifting tray passes through the water distribution holes and the water permeable holes in turn, and contacts with the sewage above the lifting tray, thereby improving the aeration effect and accelerating the reaction of the aerobic granular sludge.

[0024] Furthermore, it also includes a highly controllable mud discharge mechanism, which includes a sealed bearing, a mud discharge cylinder, a mud discharge port, a mud discharge valve, a mud discharge hose and a mud discharge port rotation height adjustment component. The top side of the reaction tank is rotatably connected to two horizontally distributed mud discharge cylinders through a sealed bearing. The mud discharge cylinders are located on the lower side of the inverted V-shaped three-phase separation plate. Mud discharge ports are equidistantly arranged on the side of the part of the mud discharge cylinder located in the reaction tank. One end of the two mud discharge cylinders located outside the reaction tank is connected to one end of two mud discharge hoses through the mud discharge valve respectively, and the outer peripheral side of one end of the two mud discharge cylinders located outside the reaction tank is connected to the mud discharge port rotation height adjustment component. The sealed bearing can be waterproof to prevent water from seeping out. After the clean water is discharged, the mud filter layer is located on the lower side of the inverted V-shaped three-phase separation plate. If the mud filter layer is too thick, open the mud discharge valve, and the mud filter layer enters the mud discharge barrel through the mud discharge port, and then is discharged through the mud discharge hose. The mud discharge port rotation height adjustment assembly can drive the two mud discharge barrels to rotate synchronously. When the mud discharge barrel rotates, it drives the mud discharge port to rotate, which can change the height of the mud discharge port in the reaction tank, and can discharge sludge at different heights of the mud filter layer.

[0025] Compared with the prior art, the sequencing batch aerobic granular sludge reactor has the following beneficial effects:

[0026] 1. The sewage is first sent to the anoxic static chamber for anoxic static, allowing anaerobic and anoxic bacteria to multiply in advance, and then sent to the aerobic granular sludge reaction chamber for aeration treatment through the multifunctional aeration mechanism. The aerobic granular sludge reaction chamber is used to treat the sewage with aerobic granular sludge. The aerobic granular sludge is an anaerobic environment, anoxic environment and aerobic environment from the inside to the outside, allowing anaerobic bacteria, anoxic bacteria and aerobic bacteria to play a leading role in different positions of the aerobic granular sludge, thereby achieving synchronous nitrogen and phosphorus removal;

[0027] 2. The anoxic process is carried out in the anoxic static chamber, and the aerobic granular sludge treatment process is carried out in the aerobic granular sludge reaction chamber under aeration. The lifting tray and the supporting disc hold the mud filter layer at the bottom of the aerobic granular sludge reaction chamber upward, and the clean water on the upper layer of the aerobic granular sludge reaction chamber is discharged, which can prevent the mud filter layer from spreading and causing the sewage entering the bottom of the aerobic granular sludge reaction chamber to mix with the clean water on the upper layer, thereby ensuring the effect of sewage treatment. With the upward movement of the lifting tray and the supporting disc, the sewage in the anoxic static chamber that has passed the anoxic process is synchronously sent to the bottom of the aerobic granular sludge reaction chamber, and new sewage can also be synchronously sent to the anoxic static chamber. The sequencing batch type sewage treatment process is adopted, and the sewage treatment steps are compact;

[0028] 3. If the mud filter layer is too thick, open the mud discharge valve, the mud filter layer enters the mud discharge barrel through the mud discharge port, and then is discharged through the mud discharge hose. The mud discharge port rotation height adjustment assembly can drive the two mud discharge barrels to rotate synchronously. When the mud discharge barrel rotates, the mud discharge port is driven to rotate, which can change the height of the mud discharge port in the reaction tank, and can discharge sludge at different heights of the mud filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a sequencing batch aerobic granular sludge reactor of the present invention;

[0030] Figure 2 The present invention is a sequencing batch aerobic granular sludge reactor Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 3 The present invention is a sequencing batch aerobic granular sludge reactor Figure 1 A schematic diagram of the partially enlarged structure at B in the middle;

[0032] Figure 4 It is a schematic diagram of the side structure of the sequencing batch aerobic granular sludge reactor of the present invention;

[0033] Figure 5 The present invention is a sequencing batch aerobic granular sludge reactor Figure 4 A schematic diagram of the partially enlarged structure at C in the middle;

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of a sequencing batch aerobic granular sludge reactor of the present invention;

[0035] Figure 7 The present invention is a sequencing batch aerobic granular sludge reactor Figure 6 The schematic diagram of the local enlarged structure at D in the middle;

[0036] Figure 8 It is a schematic diagram of the cross-section front view of the sequencing batch aerobic granular sludge reactor of the present invention;

[0037] Fig. 9The present invention is a sequencing batch aerobic granular sludge reactor Figure 8 The schematic diagram of the local enlarged structure at E in the middle;

[0038] Fig.10 It is a schematic cross-sectional structure diagram of a lifting tray in a sequencing batch aerobic granular sludge reactor of the present invention;

[0039] In the figure: 1 reaction tank, 2 partition, 3 batch water supply mechanism, 31 sliding sleeve, 32 sealing ring 1, 33 water supply cylinder, 34 one-way valve 1, 35 water supply hole, 36 piston disc, 37 one-way valve 2, 38 sealing ring 2, 39 one-way valve 3, 4 upward clean water discharge control mechanism, 41 lifting tray, 42 water permeable hole, 43 hollow cylinder, 44 guide rod, 45 guide sleeve, 46 convex plate, 47 hydraulic cylinder, 48 cylinder seat, 49 top plate, 410 connecting rod, 5 multifunctional sludge stirring mechanism, 51 sleeve, 52 supporting disc, 53 water distribution hole, 54 stirring rod, 55 stirring blade, 56 stirring motor, 57 gear 1, 58 gear 2, 6 primary aeration mechanism, 61 aeration ring pipe, 62 aeration head 1, 63 aeration pipeline 1, 64 one-way air valve, 65 air pump one, 66 pump seat, 7 multifunctional aeration mechanism, 71 radiation channel, 72 hollow sludge scraper, 73 aeration head two, 74 pipe joint, 75 aeration pipeline two, 76 air pump two, 8 three-phase separation drainage mechanism, 81 annular exhaust pipe, 82 inverted V-shaped three-phase separation plate, 83 air hole, 84 annular clean water overflow trough, 85 drainage hose, 86 fixed side sleeve, 87 exhaust pipe, 88 limit sleeve, 89 bent frame, 810 electric telescopic rod, 9 height controllable mud discharge mechanism, 91 sealed bearing, 92 mud discharge cylinder, 93 mud discharge port, 94 mud discharge valve, 95 mud discharge hose, 96 synchronous sprocket, 97 chain, 98 control motor, 99 gear three, 910 gear four, 10 control pipeline, 11 valve. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] For example, see Figures 1 to 10 The present embodiment provides a technical solution: a sequencing batch aerobic granular sludge reactor, comprising a reaction tank 1, wherein the reaction tank 1 is divided into an aerobic granular sludge reaction chamber at the top and an anoxic static chamber at the bottom by a partition 2, and a position on the side of the reaction tank 1 corresponding to the top of the anoxic static chamber is connected to the bottom end of a control pipeline 10, and a valve 11 is installed on the control pipeline 10. By opening the valve 11, the gas in the anoxic static chamber can be discharged with the help of the control pipeline 10, and a bacterial agent can also be added to the anoxic static chamber.

[0042] It also includes a sequential batch water supply mechanism 3, an upward clean water discharge control mechanism 4, a multifunctional sludge stirring mechanism 5, a multifunctional aeration mechanism 7 and a three-phase separation drainage mechanism 8;

[0043] The batch water supply mechanism 3 includes a sliding sleeve 31, a water supply cylinder 33, a piston disc 36, a second check valve 37 and a third check valve 39. The middle part of the partition plate 2 is fixedly connected with the sliding sleeve 31. The inner side of the sliding sleeve 31 is vertically slidably connected with the water supply cylinder 33. The bottom end of the water supply cylinder 33 is fixedly connected with the middle part of the piston disc 36. The outer peripheral side of the piston disc 36 is slidably connected with the inner wall of the anoxic static chamber. The side of the reaction tank 1 is installed with a third check valve 39 at a position corresponding to the bottom end of the anoxic static chamber. The second check valve 37 is inserted and installed on the piston disc 36. The water supply cylinder 33 is provided with a reaction chamber one-way water supply component.

[0044] The reaction chamber one-way water supply assembly includes a one-way valve 34 and a water-up hole 35. The bottom side of the water-up cylinder 33 is provided with a water-up hole 35, and the top side of the water-up cylinder 33 is provided with a one-way valve 34. The one-way valve 34 only allows the sewage in the water-up cylinder 33 to enter the aerobic granular sludge reaction chamber, and the sewage cannot flow in the reverse direction here. When the upward clean water discharge control mechanism 4 drives the piston disc 36 to move upward in the anoxic static chamber through the water-up cylinder 33, the sewage in the anoxic static chamber above the piston disc 36 and treated by anoxic static treatment enters the interior of the water-up cylinder 33 through the water-up hole 35, and then enters the bottom of the aerobic granular sludge reaction chamber through the one-way valve 34, completing the transfer of the sewage after anoxic treatment to the aerobic granular sludge reaction chamber.

[0045] The batch water supply mechanism 3 also includes a sealing ring 1 32 and a sealing ring 2 38. An annular groove 1 is provided on the inner side of the sliding sleeve 31, and a sealing ring 1 32 made of rubber is installed in the annular groove 1. The sealing ring 1 32 is in friction contact with the outer side of the water supply cylinder 33. With the help of the sealing ring 1 32, the sealing performance between the sliding sleeve 31 and the water supply cylinder 33 can be improved. An annular groove 2 is provided on the outer peripheral side of the piston disc 36, and a sealing ring 2 38 made of rubber is installed in the annular groove 2. The sealing ring 2 38 is in friction contact with the inner wall of the anoxic static chamber, so that when the piston disc 36 moves upward, it can use the negative pressure to suck sewage from the outside into the anoxic static chamber through the one-way valve 39, and can also smoothly send the sewage above the piston disc 36 into the aerobic granular sludge reaction chamber.

[0046] The upward clean water discharge control mechanism 4 is installed in the aerobic granular sludge reaction chamber, and the bottom of the upward clean water discharge control mechanism 4 is connected to the top of the upper water cylinder 33;

[0047] The upward clean water discharge control mechanism 4 includes a lifting tray 41, water permeable holes 42, a hollow cylinder 43, an upward control component and a top plate 49. The upward control component is installed on the top of the reaction tank 1, and the top plate 49 is installed on the upward control component. The top plate 49 is located above the middle of the reaction tank 1. The middle of the top plate 49 is fixedly connected to the top of the hollow cylinder 43, and the bottom end of the hollow cylinder 43 is fixedly connected to the middle of the lifting tray 41. The lifting tray 41 is evenly provided with water permeable holes 42, and the bottom center of the lifting tray 41 is fixedly connected to the top of the upper water cylinder 33.

[0048] The upward movement control assembly includes a guide rod 44, a guide sleeve 45, a convex plate 46, a hydraulic cylinder 47, a cylinder seat 48, and a connecting rod 410. Two vertical guide rods 44 are fixedly connected to both sides of the top of the reaction tank 1. Two guide sleeves 45 are fixedly connected to both sides of the top plate 49 through two connecting rods 410. The two guide sleeves 45 are vertically slidably connected to the two guide rods 44 respectively. A convex plate 46 is fixedly connected to the side of one of the guide sleeves 45. The convex plate 46 is fixedly connected to the top of the hydraulic cylinder 47. The bottom side of the hydraulic cylinder 47 is fixed to the outside of the reaction tank 1 through the cylinder seat 48. The guide rod 44 and the guide sleeve 45 cooperate to limit the top plate 49 so that the top plate 49 can only move up and down. The extension and retraction of the hydraulic cylinder 47 can drive the top plate 49 and the hollow cylinder 43 to move up and down.

[0049] The upward movement control component is used to drive the hollow cylinder 43 to move up and down through the top plate 49. With the help of the hollow cylinder 43, the lifting tray 41 and the water supply cylinder 33 can be driven to move up and down. The water permeable hole 42 allows the water below the lifting tray 41 to be transferred to the top of the lifting tray 41. When the lifting tray 41 moves upward with the hollow cylinder 43, it lifts up the mud filter layer formed by the deposition of aerobic granular sludge, so that the mud filter layer is in a stable state, and avoids the expansion hydraulic bag formed by the water distributor from dispersing the mud filter layer when lifting it.

[0050] The multifunctional sludge stirring mechanism 5 is installed on the upward clean water discharge control mechanism 4;

[0051] The multifunctional sludge stirring mechanism 5 includes a sleeve 51, a stirring rod 54, a stirring blade 55, an aerobic granular sludge deposition support assembly and a sleeve rotation power assembly. The sleeve 51 is rotatably sleeved on the outer side of the hollow cylinder 43. A plurality of stirring rods 54 are fixedly connected in a circular array on the bottom peripheral side of the sleeve 51. Each stirring rod 54 is respectively provided with a stirring blade 55. The bottom peripheral side of the sleeve 51 is connected to the aerobic granular sludge deposition support assembly, and the top peripheral side of the sleeve 51 is connected to the sleeve rotation power assembly. The sleeve rotation power assembly is installed at the bottom of the top plate 49.

[0052] The sleeve rotation power assembly includes a stirring motor 56, gear one 57, and gear two 58. Gear two 58 is fixedly sleeved on the top outer peripheral side of the sleeve 51, and the stirring motor 56 is installed on the bottom of the top plate 49. The output shaft of the stirring motor 56 is fixedly connected to gear one 57, and gear one 57 is meshingly connected with gear two 58. When the stirring motor 56 works, the sleeve 51 is driven to rotate relative to the hollow cylinder 43 through the transmission of gear one 57 and gear two 58.

[0053] The sleeve rotation power assembly is used to drive the sleeve 51 to rotate relative to the hollow cylinder 43. The sleeve 51 drives the stirring rod 54 and the stirring blade 55 to rotate, so as to stir the sewage when needed, break up the mud filter layer, allow the sewage and aerobic granular sludge to be fully mixed, and promote the reaction of the aerobic granular sludge. The aerobic granular sludge deposition support assembly is located on the upper side of the lifting tray 41, replacing the lifting tray 41 to directly support the mud filter layer formed by the deposition of aerobic granular sludge.

[0054] The aerobic granular sludge deposition support assembly includes a supporting disc 52 and a water distribution hole 53. The outer peripheral side of the bottom end of the sleeve 51 is fixedly connected to the middle of the supporting disc 52. The supporting disc 52 is located on the upper side of the lifting tray 41, and the diameter of the supporting disc 52 is smaller than the diameter of the lifting tray 41. A water distribution hole 53 is opened on the supporting disc 52 at a position corresponding to the water permeable hole 42. The supporting disc 52 serves as the main body of the aerobic granular sludge deposition supporting component. The mud filter layer formed by the aerobic granular sludge deposition is mainly located on the upper side of the supporting disc 52. When the water distribution holes 53 on the supporting disc 52 correspond to the water permeable holes 42 up and down, the water below the lifting tray 41 can be smoothly transferred to the top of the lifting tray 41 through the water distribution holes 53 and the water permeable holes 42. When the water distribution holes 53 and the water permeable holes 42 on the supporting disc 52 are staggered, it can prevent the aerobic granular sludge from falling to the bottom of the lifting tray 41 through the water distribution holes 53 and the water permeable holes 42 when it settles, and it can also prevent the aerobic granular sludge from clogging the water permeable holes 42.

[0055] The multifunctional aeration mechanism 7 is installed on the upward clean water discharge control mechanism 4;

[0056] The multifunctional aeration mechanism 7 includes a radiation channel 71, a hollow sludge scraper 72, an aeration head 73, a pipe joint 74, an aeration pipeline 75 and an air pump 76. A plurality of radiation channels 71 are provided in a circular array inside the lifting tray 41. The radiation channels 71 are distributed along the radial direction of the lifting tray 41. The ends of the radiation channels 71 are connected to the inner side of the bottom of the hollow cylinder 43. The upper edge of the lifting tray 41 is connected to a circular array with the same number of hollow sludge scraper rods 72 as the radiation channels 71. The interior of each hollow sludge scraper rod 72 is connected to the corresponding radiation channel 71, and the hollow sludge scraper rod 72 is located on the upper side of the supporting disc 52. An aeration head 73 is installed on the hollow sludge scraper rod 72. The top of the hollow cylinder 43 is connected to one end of the aeration pipeline 75 through a pipe joint 74. The other end of the aeration pipeline 75 is connected to the air outlet of the air pump 76. The air pump 76 is installed on the top plate 49.

[0057] The air pump 2 76 works to deliver air into the hollow cylinder 43 through the pipe joint 74 and the aeration pipeline 2 75. The air in the hollow cylinder 43 enters the interior of the hollow sludge scraper 72 through the radiation channel 71, and then disperses the sewage into the aerobic granular sludge reaction chamber through the aeration head 2 73 to complete the aeration process. At this time, the hollow sludge scraper 72 cooperates with the aeration head 2 73 to play the aeration process. When the clean water is discharged, the water distribution holes 53 on the supporting disc 52 are staggered with the water permeable holes 42, and the lifting tray 41 and the supporting disc 52 move up with the hollow cylinder 43. When the clean water on the upper layer is discharged, the sleeve rotation power assembly drives the sleeve 51 to rotate relative to the hollow cylinder 43, and the sleeve 51 drives the supporting disc 52 relative to the lifting tray 4 1 rotates, at this time, the mud filter layer on the supporting disc 52 is scraped up by the lower side of the hollow sludge scraper 72 to prevent the mud filter layer from condensing on the supporting disc 52 and not falling off, and then the sleeve rotation power assembly controls the water distribution holes 53 on the supporting disc 52 to correspond to the water permeable holes 42, the lifting tray 41 and the supporting disc 52 move down with the hollow cylinder 43, and the sewage under the lifting tray 41 is transferred to the upper area of ​​the supporting disc 52 through the corresponding water distribution holes 53 and the water permeable holes 42, and then the sleeve rotation power assembly drives the sleeve 51, the stirring rod 54 and the stirring blades 55 to rotate again, and the aerobic granular sludge scraped up by the hollow sludge scraper 72 is quickly mixed with the sewage above the supporting disc 52 as the stirring of the stirring rod 54 and the stirring blades 55.

[0058] The three-phase separation and drainage mechanism 8 is installed on the top of the reaction tank 1 .

[0059] The three-phase separation drainage mechanism 8 includes an annular exhaust pipe 81, an inverted V-shaped three-phase separation plate 82, an air hole 83, an annular clean water overflow groove 84, a drainage height control component, an exhaust pipe 87 and a limiting sleeve 88. An annular clean water overflow groove 84 is provided in the center of the annular exhaust pipe 81, an inverted V-shaped three-phase separation plate 82 is provided between the inner side of the annular exhaust pipe 81 and the outer side of the annular clean water overflow groove 84, the sleeve 51 passes through the middle of the annular clean water overflow groove 84, the annular clean water overflow groove 84 does not interfere with the rotation or up and down movement of the sleeve 51, the end of the inverted V-shaped three-phase separation plate 82 is connected to the inside of the annular exhaust pipe 81 through the air hole 83, the top of the annular exhaust pipe 81 is connected to the bottom ends of two exhaust pipes 87, the top inner side of the reaction tank 1 is provided with a limiting sleeve 88 vertically slidably connected to the exhaust pipe 87, and the top of the annular exhaust pipe 81 is connected to the drainage height control component.

[0060] The drainage height control assembly includes a bent frame 89 and an electric telescopic rod 810. The top of the reaction tank 1 is fixedly connected to the top of the electric telescopic rod 810 through the bent frame 89, and the bottom end of the electric telescopic rod 810 is fixedly connected to the top of the annular exhaust pipe 81. The extension and retraction of the electric telescopic rod 810 can drive the annular exhaust pipe 81 to move up and down. The air collected in the annular exhaust pipe 81 can be collected through the exhaust pipe 87. In order to collect the gas discharged from the exhaust pipe 87, a collecting air pipe can be connected to the top of the collecting exhaust pipe 87.

[0061] The drainage height control component adjusts the position of the annular exhaust pipe 81 and the inverted V-shaped three-phase separation plate 82 at the top of the reaction tank 1 according to the amount of aerobic granular sludge formed. When the amount of aerobic granular sludge formed is large, the annular exhaust pipe 81 and the inverted V-shaped three-phase separation plate 82 move up. When the amount of aerobic granular sludge formed is small, the annular exhaust pipe 81 and the inverted V-shaped three-phase separation plate 82 move down. When the aeration gas encounters the inverted V-shaped three-phase separation plate 82, it is collected at the top of the inverted V-shaped three-phase separation plate 82, and then enters the annular exhaust pipe 81 through the air hole 83. The annular exhaust pipe 81 can be used to collect the gas. The inverted V-shaped three-phase separation plates 82 are staggered up and down in the area between the annular exhaust pipe 81 and the annular clean water overflow groove 84. A clean water gap is left between two adjacent inverted V-shaped three-phase separation plates 82 to facilitate the passage of clean water while inhibiting the passage of aerobic granular sludge, thereby achieving the effect of three-phase separation. When the clean water needs to be discharged, the lifting tray 41 and the supporting disc 52 support the mud filter layer to move upward, and the upper clean water passes through the inverted V-shaped three-phase separation plate 82 through the clean water gap. When the clean water level is higher than the top of the annular clean water overflow groove 84, it enters the top of the annular clean water overflow groove 84.

[0062] The three-phase separation drainage mechanism 8 also includes a drainage hose 85 and a fixed side sleeve 86. The fixed side sleeve 86 is installed on the side of the reaction tank 1. The bottom of the annular clean water overflow groove 84 is connected to one end of the drainage hose 85, and the other end of the drainage hose 85 is connected to the fixed side sleeve 86. The clean water entering the annular clean water overflow groove 84 is discharged through the drainage hose 85.

[0063] When in use, the sewage is first sent to the anoxic static chamber for anoxic static state to allow anaerobic bacteria and anoxic bacteria to multiply in advance, and then sent to the aerobic granular sludge reaction chamber for aeration treatment through the multifunctional aeration mechanism 7. The aerobic granular sludge reaction chamber is used to treat the sewage with aerobic granular sludge. The aerobic granular sludge is an anaerobic environment, anoxic environment and aerobic environment from the inside to the outside, allowing anaerobic bacteria, anoxic bacteria and aerobic bacteria to play a leading role in different positions of the aerobic granular sludge, thereby achieving synchronous nitrogen and phosphorus removal;

[0064] The upward clean water discharge control mechanism 4 can drive the water supply cylinder 33 to move up and down relative to the sliding sleeve 31 in the middle of the partition 2, and the one-way valve 2 37 only allows the sewage below the piston disc 36 to enter the upper part of the piston disc 36, and the one-way valve 3 39 only allows the sewage outside the reaction tank 1 to enter the bottom of the anoxic static chamber;

[0065] When it is necessary to discharge clean water, the upward clean water discharge control mechanism 4 drives the water supply cylinder 33 to move upward relative to the sliding sleeve 31 in the middle of the partition 2, and the upward clean water discharge control mechanism 4, the multifunctional sludge stirring mechanism 5 and the mud filter layer formed at the bottom of the aerobic granular sludge reaction chamber move upward, and the clean water on the upper side of the mud filter layer is discharged. The water supply cylinder 33 also drives the piston disc 36 to move upward in the anoxic static chamber. At this time, the sludge treated by the anoxic static treatment above the piston disc 36 in the anoxic static chamber is Water enters the bottom of the aerobic granular sludge reaction chamber through the one-way water supply assembly of the reaction chamber on the upper water cylinder 33, and the sewage outside the reaction tank 1 enters the space below the piston disc 36 in the anoxic static chamber through the one-way valve 39. The multifunctional sludge stirring mechanism 5 works to stir the mud filter layer and disperse the mud filter layer, and then the clean water discharge control mechanism 4 moves upward to drive the upper water cylinder 33 to move downward relative to the sliding sleeve 31 in the middle of the partition 2. The piston disc 36 moves downward with the upper water cylinder 33, and the anoxic static chamber is located at the active space. The sewage below the piston circular plate 36 enters the upper part of the piston circular plate 36 through the one-way valve 2 37, and the sewage above the piston circular plate 36 in the anoxic static chamber enters the anoxic static stage. The multifunctional sludge stirring mechanism 5 works again to mix the newly entered sewage in the aerobic granular sludge reaction chamber with the originally stirred mud filter layer. The multifunctional aeration mechanism 7 aerates the sewage in the aerobic granular sludge reaction chamber, and the aerobic granular sludge begins to react. During aeration, the aerobic granular sludge can also be driven to move upward in the sewage to promote the mixing reaction of the aerobic granular sludge and the sewage. Then the multifunctional aeration mechanism 7 stops working and stands to allow the reacted aerobic granular sludge to settle. The settled aerobic granular sludge forms a new mud filter layer at the bottom of the aerobic granular sludge reaction chamber. The three-phase separation drainage mechanism 8 collects and discharges the aeration-treated gas, and can also prevent the aerobic granular sludge from crossing the three-phase separation drainage mechanism 8. Only clean water can cross the three-phase separation drainage mechanism 8 and is in the upper layer area of ​​the aerobic granular sludge reaction chamber.

[0066] For example 2, please refer to Figures 1 to 10 This embodiment provides a technical solution: a sequencing batch aerobic granular sludge reactor. The structure of this embodiment is roughly the same as that of the first embodiment, except that:

[0067] It also includes a first-stage aeration mechanism 6, which includes an aeration ring tube 61, an aeration head 62, an aeration pipeline 63 and an aeration supply assembly. The aeration ring tube 61 is installed on the upper side of the partition 2, and the aeration ring tube 61 is provided with an aeration head 62 distributed in a circular array. The aeration ring tube 61 is connected to one end of the aeration pipeline 63, and the other end of the aeration pipeline 63 extends to the outside of the reaction tank 1 and is connected to the aeration supply assembly.

[0068] The aeration supply assembly includes a one-way air valve 64, an air pump 65, and a pump seat 66. An air pump 65 is installed on the outside of the reaction tank 1 through the pump seat 66. The air outlet of the air pump 65 is connected to the aeration pipeline 63 through the one-way air valve 64. The air pump 65 is used to supply air to the aeration pipeline 63. The one-way air valve 64 only allows the air pump 65 to deliver air to the aeration pipeline 63 to prevent air or water from flowing in the opposite direction.

[0069] If the aeration effect of the multifunctional aeration mechanism 7 cannot meet the demand, the aeration supply component works to deliver air to the aeration annular tube 61 through the aeration pipeline 63, and the air in the aeration annular tube 61 is dispersed and exploded through the aeration head 62, and the air enters the area below the lifting tray 41, and the water distribution holes 53 on the supporting disc 52 are controlled to correspond to the water permeable holes 42. The air below the lifting tray 41 passes through the water distribution holes 53 and the water permeable holes 42 in turn, and contacts with the sewage above the lifting tray 41, thereby improving the aeration effect and accelerating the reaction of the aerobic granular sludge.

[0070] For example 3, please refer to Figures 1 to 10 This embodiment provides a technical solution: a sequencing batch aerobic granular sludge reactor. The structure of this embodiment is roughly the same as that of the second embodiment, except that:

[0071] It also includes a highly controllable mud discharge mechanism 9, which includes a sealed bearing 91, a mud discharge cylinder 92, a mud discharge port 93, a mud discharge valve 94, a mud discharge hose 95 and a mud discharge port rotation height adjustment component. The top side of the reaction tank 1 is rotatably connected to two horizontally distributed mud discharge cylinders 92 through the sealed bearing 91. The mud discharge cylinder 92 is located on the lower side of the inverted V-shaped three-phase separation plate 82. The mud discharge ports 93 are equidistantly arranged on the side of the part of the mud discharge cylinder 92 located in the reaction tank 1. The ends of the two mud discharge cylinders 92 located on the outside of the reaction tank 1 are connected to one end of two mud discharge hoses 95 through the mud discharge valve 94 respectively, and the outer peripheral side of the ends of the two mud discharge cylinders 92 located on the outside of the reaction tank 1 is connected to the mud discharge port rotation height adjustment component.

[0072] The mud discharge port rotation height adjustment component includes a synchronous sprocket 96, a chain 97, a control motor 98, a gear three 99, and a gear four 910. The two mud discharge barrels 92 are located on the outer peripheral side of one end of the reaction tank 1 and are fixedly connected to two synchronous sprockets 96 respectively. The two synchronous sprockets 96 are connected by a chain 97. One end of one of the mud discharge barrels 92 located on the outer side of the reaction tank 1 is fixedly connected to the gear four 910. A control motor 98 is installed on the outer side of the reaction tank 1. The output shaft of the control motor 98 is fixedly connected to the gear three 99. The gear three 99 is meshingly connected with the gear four 910. The control motor 98 can drive one mud discharge barrel 92 to rotate through the transmission of the gear three 99 and the gear four 910. With the help of the synchronous sprocket 96 and the chain 97, the other mud discharge barrel 92 can be driven to rotate synchronously. The rotation of the two mud discharge barrels 92 can change the height of the mud discharge port 93 in the reaction tank 1.

[0073] The sealed bearing 91 is waterproof to prevent water from seeping out. After the clean water is discharged, the mud filter layer is located on the lower side of the inverted V-shaped three-phase separation plate 82. If the mud filter layer is too thick, open the mud discharge valve 94, and the mud filter layer enters the mud discharge tube 92 through the mud discharge port 93, and then is discharged through the mud discharge hose 95. The mud discharge port rotation height adjustment component can drive the two mud discharge tubes 92 to rotate synchronously. When the mud discharge tube 92 rotates, it drives the mud discharge port 93 to rotate, which can change the height of the mud discharge port 93 in the reaction tank 1, and can discharge sludge at different heights of the mud filter layer.

[0074] See also Figures 1 to 10 , a sewage treatment method using a sequencing batch aerobic granular sludge reactor, comprising the following steps:

[0075] The sewage is sent to the anoxic static chamber for anoxic static treatment, and the aerobic granular sludge reaction chamber treats the sewage with aerobic granular sludge;

[0076] The aerobic granular sludge reaction chamber is operated by the air pump 2 76 in the multifunctional aeration mechanism 7, and air is sent into the hollow cylinder 43 through the pipe joint 74 and the aeration pipeline 2 75. The air in the hollow cylinder 43 enters the interior of the hollow sludge scraper 72 through the radiation channel 71, and then is dispersed into the sewage in the aerobic granular sludge reaction chamber through the aeration head 2 73, thereby completing the aeration process.

[0077] The sleeve rotating power assembly is used to drive the sleeve 51 to rotate relative to the hollow cylinder 43, so that the water distribution holes 53 on the supporting disc 52 are arranged alternately with the water permeable holes 42, and then stand still, and the aerobic granular sludge in the aerobic granular sludge reaction chamber is deposited on the upper edge of the lifting tray 41 and the upper side of the supporting disc 52 to form a mud filter layer;

[0078] The upward control assembly is used to drive the hollow cylinder 43 upward through the top plate 49, and the hollow cylinder 43 drives the lifting tray 41, the supporting disc 52 and the mud filter layer to move upward, and the clean water on the upper side of the mud filter layer enters the annular clean water overflow groove 84 through the clean water gap, and then is discharged through the drainage hose 85;

[0079] The water supply cylinder 33 moves upward along with the hollow cylinder 43, and the water supply cylinder 33 drives the piston disc 36 to move upward in the anoxic static chamber. At this time, the sewage treated by anoxic static treatment above the piston disc 36 in the anoxic static chamber enters the bottom of the aerobic granular sludge reaction chamber through the one-way valve 1 34 and the water supply hole 35 on the water supply cylinder 33, and the sewage outside the reaction tank 1 enters the space below the piston disc 36 in the anoxic static chamber through the one-way valve 3 39;

[0080] The sleeve rotating power assembly drives the sleeve 51 to rotate relative to the hollow cylinder 43, and the sleeve 51 drives the supporting disc 52 to rotate relative to the lifting tray 41. At this time, the mud filter layer on the supporting disc 52 is scraped up by the lower side of the hollow mud scraper rod 72 to prevent the mud filter layer from condensing on the supporting disc 52.

[0081] The sleeve rotating power assembly drives the sleeve 51 to rotate, and controls the water distribution holes 53 on the supporting disc 52 to correspond to the water permeable holes 42 up and down;

[0082] The upward control assembly is used to drive the lifting tray 41 and the hollow cylinder 43 to move downward through the top plate 49, and the piston disc 36 moves downward along with the water supply cylinder 33. The sewage below the piston disc 36 in the anoxic static chamber enters the upper part of the piston disc 36 through the one-way valve 2 37, and the sewage above the piston disc 36 in the anoxic static chamber enters the anoxic static stage, and the sewage at the bottom of the aerobic granular sludge reaction chamber is transferred to the area above the supporting disc 52 through the water distribution hole 53 and the water permeable hole 42;

[0083] The sleeve rotating power assembly drives the sleeve 51, the stirring rod 54 and the stirring blade 55 to rotate again, and the aerobic granular sludge scraped by the hollow sludge scraper rod 72 is quickly mixed with the sewage above the supporting disc 52 as the stirring of the stirring rod 54 and the stirring blade 55;

[0084] The air pump 2 76 starts working again, and the aeration head 2 73 is used to carry out the reaction of the aerobic granular sludge again.

[0085] It is worth noting that the hydraulic cylinder 47, stirring motor 56, air pump 1 65, air pump 2 76, electric telescopic rod 810, and control motor 98 disclosed in the above embodiments are all controlled by an external PLC controller, and the control method thereof adopts the existing technology. The stirring motor 56 and the control motor 98 both adopt servo motors.

[0086] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0087] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sequencing batch aerobic granular sludge reactor, comprising a reaction tank (1), wherein the reaction tank (1) is divided into an aerobic granular sludge reaction chamber at the top and an anoxic static chamber at the bottom by a partition (2), characterized in that: Also includes: The batch water supply mechanism (3) comprises a water supply cylinder (33), a sliding sleeve (31) is fixedly connected to the middle of the partition plate (2), the inner side of the sliding sleeve (31) is vertically slidably connected to the water supply cylinder (33), the bottom end of the water supply cylinder (33) is fixedly connected to the middle of the piston circular plate (36), the outer peripheral side of the piston circular plate (36) is slidably connected to the inner wall of the anoxic static chamber, a check valve three (39) is installed at a position corresponding to the bottom end of the anoxic static chamber on the side of the reaction tank (1), a check valve two (37) is inserted and installed on the piston circular plate (36), and a reaction chamber one-way water supply component is provided on the water supply cylinder (33); An upward clean water discharge control mechanism (4) is installed in the aerobic granular sludge reaction chamber, and the bottom of the upward clean water discharge control mechanism (4) is connected to the top of the upper water cylinder (33); A multifunctional sludge stirring mechanism (5) is installed on the upward clean water discharge control mechanism (4); A multifunctional aeration mechanism (7) is installed on the upward clean water discharge control mechanism (4); A three-phase separation and drainage mechanism (8) is installed on the top of the reaction tank (1); The upward clean water discharge control mechanism (4) comprises a lifting tray (41), a hollow cylinder (43), an upward control component and a top plate (49); the upward control component is installed on the top of the reaction tank (1); the top plate (49) is installed on the upward control component; the top plate (49) is located above the middle of the reaction tank (1); the middle of the top plate (49) is fixedly connected to the top of the hollow cylinder (43); the bottom end of the hollow cylinder (43) is fixedly connected to the middle of the lifting tray (41); water permeable holes (42) are evenly opened on the lifting tray (41); the bottom center of the lifting tray (41) is fixedly connected to the top of the upper water cylinder (33); The multifunctional sludge stirring mechanism (5) comprises a sleeve (51) and an aerobic granular sludge deposition support assembly; the sleeve (51) is rotatably sleeved on the outer side of the hollow cylinder (43); and the outer peripheral side of the bottom end of the sleeve (51) is connected to the aerobic granular sludge deposition support assembly; The aerobic granular sludge deposition support assembly comprises a support disc (52) and a water distribution hole (53); the outer peripheral side of the bottom end of the sleeve (51) is fixedly connected to the middle of the support disc (52); the support disc (52) is located on the upper side of the lifting tray (41); the diameter of the support disc (52) is smaller than the diameter of the lifting tray (41); and the support disc (52) is provided with a water distribution hole (53) at a position corresponding to the water permeable hole (42).

2. The sequencing batch aerobic granular sludge reactor according to claim 1, characterized in that: The reaction chamber one-way water supply assembly comprises a one-way valve (34) and a water supply hole (35); the water supply hole (35) is provided on the bottom side of the water supply cylinder (33); and the one-way valve (34) is installed on the top side of the water supply cylinder (33).

3. The sequencing batch aerobic granular sludge reactor according to claim 1, characterized in that: The multifunctional sludge stirring mechanism (5) further comprises a stirring rod (54), a stirring blade (55) and a sleeve rotating power assembly; a plurality of stirring rods (54) are fixedly connected in an annular array on the bottom peripheral side of the sleeve (51); each stirring rod (54) is provided with a stirring blade (55); the top peripheral side of the sleeve (51) is connected to the sleeve rotating power assembly; the sleeve rotating power assembly is mounted on the bottom of the top plate (49).

4. The sequencing batch aerobic granular sludge reactor according to claim 1, characterized in that: The multifunctional aeration mechanism (7) comprises a hollow sludge scraper (72); a plurality of radiation channels (71) are provided in an annular array in the lifting tray (41); the radiation channels (71) are distributed along the radial direction of the lifting tray (41); the ends of the radiation channels (71) are connected to the inner side of the bottom of the hollow cylinder (43); the upper edge of the lifting tray (41) is connected to the hollow sludge scraper (72) in an annular array, the same number as the radiation channels (71); The interior of the hollow sludge scraper rod (72) is connected to the corresponding radiation channel (71), and the hollow sludge scraper rod (72) is located on the upper side of the supporting disc (52). An aeration head 2 (73) is installed on the hollow sludge scraper rod (72). The top of the hollow cylinder (43) is connected to one end of an aeration pipeline 2 (75) via a pipe joint (74). The other end of the aeration pipeline 2 (75) is connected to the air outlet of an air pump 2 (76). The air pump 2 (76) is installed on the top plate (49).

5. The sequencing batch aerobic granular sludge reactor according to claim 1, characterized in that: The three-phase separation drainage mechanism (8) comprises an annular exhaust pipe (81), an inverted V-shaped three-phase separation plate (82), an air hole (83) and an annular clean water overflow groove (84); an annular clean water overflow groove (84) is provided at the center of the annular exhaust pipe (81); an inverted V-shaped three-phase separation plate (82) is provided between the inner side of the annular exhaust pipe (81) and the outer side of the annular clean water overflow groove (84); the sleeve (51) passes through the middle of the annular clean water overflow groove (84); the end of the inverted V-shaped three-phase separation plate (82) is connected to the inside of the annular exhaust pipe (81) through the air hole (83); the top of the annular exhaust pipe (81) is connected to the bottom ends of two exhaust pipes (87); a limiting sleeve (88) vertically slidably connected to the exhaust pipe (87) is provided on the inner side of the top of the reaction tank (1); and the top of the annular exhaust pipe (81) is connected to a drainage height control component.

6. The sequencing batch aerobic granular sludge reactor according to claim 5, characterized in that: The three-phase separation drainage mechanism (8) further comprises a drainage hose (85) and a fixed side sleeve (86); the fixed side sleeve (86) is installed on the side of the reaction tank (1); the bottom of the annular clean water overflow groove (84) is connected to one end of the drainage hose (85), and the other end of the drainage hose (85) is connected to the fixed side sleeve (86).

7. The sequencing batch aerobic granular sludge reactor according to claim 1, characterized in that: The invention also comprises a first-stage aeration mechanism (6), the first-stage aeration mechanism (6) comprising an aeration annular tube (61), an aeration head (62), an aeration pipeline (63) and an aeration supply assembly. The aeration annular tube (61) is installed on the upper side of the partition (2), and the aeration annular tube (61) is provided with aeration heads (62) distributed in a circular array. The aeration annular tube (61) is connected to one end of the aeration pipeline (63), and the other end of the aeration pipeline (63) extends to the outside of the reaction tank (1) and is connected to the aeration supply assembly.

8. The sequencing batch aerobic granular sludge reactor according to claim 5, characterized in that: The invention also comprises a height-controllable mud discharge mechanism (9), the height-controllable mud discharge mechanism (9) comprising a sealed bearing (91), a mud discharge cylinder (92), a mud discharge port (93), a mud discharge valve (94), a mud discharge hose (95) and a mud discharge port rotation height adjustment assembly. The top side of the reaction tank (1) is rotatably connected to two horizontally distributed mud discharge cylinders (92) via the sealed bearing (91). The mud discharge cylinders (92) are located on the lower side of the inverted V-shaped three-phase separation plate (82). Mud discharge ports (93) are arranged at equal distances on the side of the mud discharge cylinder (92) located inside the reaction tank (1). One end of the two mud discharge cylinders (92) located outside the reaction tank (1) is connected to one end of two mud discharge hoses (95) via the mud discharge valve (94). The outer peripheral side of one end of the two mud discharge cylinders (92) located outside the reaction tank (1) is connected to the mud discharge port rotation height adjustment assembly.

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