An ABR anaerobic process enhanced wastewater treatment device and process flow

Abstract

The present invention discloses an ABR anaerobic process enhanced wastewater treatment device and process flow, belonging to the technical field of wastewater treatment. The ABR anaerobic process enhanced wastewater treatment device includes a treatment chamber, a partition plate, a baffle plate, reaction chambers, overflow ports, a circulation pump, a water inlet pipe, a water outlet pipe, and sludge shearing components. A plurality of sludge shearing components respectively correspond to a plurality of reaction chambers and are used to generate a shearing force on the sludge in the reaction chambers when the circulation pump is started. In the present invention, the circulation pump is intermittently started, thereby generating a circulating flow effect on the sewage in the reaction chambers, promoting the mixing of the sewage and the sludge. In addition, during the startup of the circulation pump, the sludge shearing components cause the sludge in different regions of the reaction chambers to move up and down alternately, so that the sludge in the reaction chambers is subjected to a shearing force, thereby generating voids in the sludge to enable the sewage to better mix with the sludge, which can promote the uniform distribution of microorganisms in the sludge and facilitate the diffusion of microorganisms.

Description

Technical Field

[0001] The present invention belongs to the technical field of wastewater treatment, and particularly relates to an ABR anaerobic process enhanced wastewater treatment device and process flow. Background Art

[0002] Anaerobic baffled reactor, namely ABR. The anaerobic baffled reactor is an efficient anaerobic sewage treatment technology, which was developed and improved on the basis of the anaerobic biological disk reactor by McCarty of Stanford University in the United States and his collaborators in 1982. The characteristics of the ABR process include simple structure, strong sludge interception ability, and high stability, and it is particularly suitable for treating high-concentration organic wastewater, including toxic and difficult-to-degrade wastewater. In the ABR reactor, by setting a series of vertically installed baffles, the wastewater flows up and down along the baffles in the reactor. This design increases the total flow path length of the water flow in the reactor, which helps the biological solids to be effectively intercepted in the reactor. At the same time, due to the blocking of the baffles and the sedimentation of the sludge, the flow velocity of the water flow in the horizontal direction is extremely slow, so a large amount of anaerobic sludge is intercepted in the reaction chamber. The ABR process sets up upper and lower baffles in the reactor to form sequentially connected compartments, enabling the separation of acidogenesis and methanogenesis phases of microbial populations in different compartments along the length direction, so as to achieve an integrated two-phase or multi-phase treatment process in one reactor. This design makes the ABR show good hydraulic conditions, high-efficient biological solid interception ability, and reasonable flora distribution when treating wastewater.

[0003] For example, an ABR anaerobic baffled reaction device for treating aquaculture wastewater disclosed in Chinese Patent Invention Publication No. CN108821448A includes a water inlet bucket, a peristaltic pump, an ABR anaerobic baffled reactor, and a water outlet bucket that are sequentially connected through water pipes. Five partition plates are arranged in the ABR anaerobic baffled reactor at intervals, and the five partition plates divide the ABR anaerobic baffled reactor into six upper-interconnected compartments. The volumes of the six compartments decrease sequentially along the water flow direction; a guide plate is arranged in each compartment, and the guide plate divides the compartment into an upper flow sub-compartment and a lower flow sub-compartment that are bottom-interconnected. The volume of the lower flow sub-compartment is one-third of the volume of the upper flow sub-compartment.

[0004] In the use of ABR in industrial wastewater, due to the too low flow velocity, the sludge in the compartment (referred to as the reaction chamber in this application) cannot be fully mixed with the wastewater, resulting in the system treatment efficiency not reaching the expected level. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide an ABR anaerobic process enhanced wastewater treatment device and process flow.

[0006] The technical solution adopted to solve the above technical problems is as follows: An ABR anaerobic process enhanced wastewater treatment device, including a treatment chamber of a baffle reactor, with a water inlet and a water outlet provided on both side walls in the length direction of the treatment chamber. A plurality of partition plates and a plurality of guide plates are vertically and fixedly connected to the inner wall of the treatment chamber along the length direction of the treatment chamber. A reaction chamber is formed between the guide plate and an adjacent partition plate. An overflow port is opened on the upper side of the partition plate. The device further includes:

[0007] A plurality of circulation pumps installed on the top of the treatment chamber. The water inlet end and the water outlet end of the circulation pump are respectively and sequentially installed with a water inlet pipe and a water outlet pipe. The lower ends of the water inlet pipe and the water outlet pipe extend into the reaction chamber of the treatment chamber;

[0008] A plurality of sludge shearing components provided at the bottom of the treatment chamber. The plurality of sludge shearing components respectively correspond to the plurality of reaction chambers and are used to generate a shearing force on the sludge in the reaction chamber when the circulation pump is started.

[0009] Through the above technical solution, the circulation pump is intermittently started, thereby generating a circulating flow effect on the sewage in the reaction chamber, promoting the mixing of the sewage and the sludge. In addition, during the start of the circulation pump, the sludge shearing component generates an up-and-down alternating movement of the sludge in different areas of the reaction chamber, so that the sludge in the reaction chamber is subjected to a shearing force, thereby generating voids in the sludge to enable the sewage to better mix with the sludge. In addition, when the sludge is subjected to a shearing force and undergoes shearing movement, it can promote the uniform distribution of microorganisms in the sludge and facilitate the diffusion of microorganisms.

[0010] Further, a plurality of sewage discharge ports and exhaust ports are respectively provided on the side wall and the top surface of the treatment chamber. The sewage discharge ports and the exhaust ports are respectively and sequentially communicated with the plurality of reaction chambers.

[0011] Through the above technical solution, the treated sludge and sewage can be discharged through the sewage discharge port, and the exhaust port can supply the exhaust gas during the reaction process to be discharged in time.

[0012] Further, the sludge shearing component includes a thickened plate fixedly connected to the bottom of the treatment chamber. Two groups of floating blocks are vertically slidably penetrated through the surface of the thickened plate. The two groups of floating blocks are respectively defined as a first floating block and a second floating block. The first floating block and the second floating block are staggered. Sealing perforations for the first floating block and the second floating block to freely pass through are opened at the bottom of the treatment chamber. The first floating block and the second floating block are in a sliding seal state with the inner wall of the sealing perforation. An up-and-down driving unit for driving the first floating block and the second floating block to alternately slide vertically is provided on the thickened plate.

[0013] Through the above technical solution, the lifting drive unit drives the first floating block and the second floating block to move up and down alternately, thereby generating a shearing force on the sludge in the reaction chamber. In addition, the first floating block and the second floating block increase the attachment area of microorganisms in the reaction chamber, which is conducive to the contact between microorganisms and sewage.

[0014] Further, the lifting drive unit includes ear plates integrally and fixedly connected to both ends of the thickened plate. The ear plates at both ends of the same thickened plate are jointly and horizontally rotatably connected to a crankshaft. A plurality of swing arms are integrally and fixedly connected to the periphery of the crankshaft. Adjacent two swing arms are respectively distributed on both sides of the radial direction of the crankshaft. The swing arm is rotatably connected to a hinge rod, and the end of the hinge rod away from the swing arm is correspondingly hinged to the bottoms of the first floating block and the second floating block.

[0015] Through the above technical solution, the rotation of the crankshaft causes the swing arm to drive the hinge rod to swing reciprocally. During the reciprocal swing of the hinge rod, it will correspondingly drive the first floating block and the second floating block to move up and down alternately, so that the first floating block and the second floating block generate a shearing force on the sludge in the reaction chamber. The structure is simple and the cost is low.

[0016] Further, there is a gap between the opposite surfaces of the parts of the first floating block and the second floating block that penetrate into the treatment chamber, and the gap and the inner wall of the treatment chamber form a shearing force buffer space.

[0017] Through the above technical solution, the shearing force buffer space is set, so that when the first floating block and the second floating block move, the sludge on the shearing surface can be buffered in the shearing force buffer space, avoiding too large a movement amplitude of the sludge near the shearing surface of the sludge, which may cause great damage to the sludge structure.

[0018] Further, a folded plate extending obliquely towards the shearing force buffer space is fixedly connected to the lower end of the guide plate.

[0019] Through the above technical solution, the folded plate buffers the flow velocity of the water flow, which is conducive to the full contact between sewage and sludge.

[0020] Further, the inclination angle of the folded plate is 45°.

[0021] Through the above technical solution, the flow dead angle of the sewage under the guide plate is reduced, and at the same time, the generation of short-circuit flow (i.e., a large increase in flow velocity) is avoided.

[0022] Furthermore, a plurality of trapezoidal grooves are formed on the surface of the folding plate. The maximum end of the inner wall width of the trapezoidal groove faces the shear force buffer space. A plurality of trapezoidal plates are rotatably connected to the outer wall of the folding plate through mounting pivot shafts. The trapezoidal plates are engaged with the trapezoidal grooves and are adapted to the profiles of the trapezoidal grooves. A dialing block is provided on one surface of the second floating block facing the trapezoidal plate. When the second floating block moves upward, the dialing block will contact the trapezoidal plate and dial the trapezoidal plate to turn upward.

[0023] Through the above technical solution, when the second floating block moves upward, it will drive the trapezoidal plate to turn upward, thereby making the trapezoidal groove in an open state. Since the sewage flow rate in the reaction chamber increases when the circulation pump is started, the water flow entering the reaction chamber is dispersed. On the one hand, when the dispersed water flow contacts the sludge, the impact force on the sludge is small. On the other hand, since the sewage flow rate in the reaction chamber increases, turbulence may be formed below the folding plate. The turbulence has a large shear force on the microorganisms in the sludge, thereby causing the microorganisms to be damaged. By making the trapezoidal groove open, turbulence is avoided from being formed below the folding plate, thereby preventing the microorganisms from being damaged by the shear force generated by the turbulence.

[0024] Furthermore, a connecting shaft is rotatably connected to the upper surfaces of the plurality of trapezoidal plates on the same folding plate. A reset structure is provided on the guide plate for driving the connecting shaft to move downward to make the surface of the trapezoidal plate flush with the surface of the folding plate.

[0025] Through the above technical solution, when the trapezoidal plate moves upward, the reset structure will accumulate elastic potential energy. When the second floating block moves downward and resets, the elastic potential energy of the reset structure is released, thereby driving the trapezoidal plate to move downward and closing the trapezoidal groove again.

[0026] An ABR anaerobic process for enhancing wastewater treatment process flow, applied to the wastewater treatment device as described above, includes:

[0027] Sewage is conveyed from the water inlet to the treatment chamber. After the reaction chamber is filled with sewage, it will flow into the next reaction chamber through the overflow port. When flowing in each reaction chamber, the sludge in the reaction chamber will contact the sewage, and the anaerobic microorganisms in the sludge will treat the sewage.

[0028] The circulation pump is intermittently started through an external control device. When the circulation pump is started, it will generate suction on the sewage in the reaction chamber. Part of the sewage will enter the circulation pump through the water inlet pipe and then flow back into the reaction chamber through the water outlet pipe, making the sewage in the reaction chamber flow, increasing the contact between the sewage and the sludge.

[0029] When the circulation pump starts, the external control device starts the sludge shearing component simultaneously. The sludge shearing component drives the sludge in different areas of the reaction chamber to move up and down alternately, and the movement states of the sludge in adjacent areas are opposite. As a result, the sludge in the reaction chamber is subjected to shear force, and finally the treated sewage will flow into the external device through the water outlet.

[0030] Through the above technical solution, the sludge and sewage can be mixed to a large extent, improving the sewage treatment efficiency.

[0031] The beneficial effects of the present invention are as follows:

[0032] In the present invention, the circulation pump starts intermittently, thereby generating a circulating flow effect on the sewage in the reaction chamber, promoting the mixing of sewage and sludge. In addition, during the start-up of the circulation pump, the sludge shearing component causes the sludge in different areas of the reaction chamber to move up and down alternately, so that the sludge in the reaction chamber is subjected to shear force, thereby generating voids in the sludge to enable the sewage to better mix with the sludge. In addition, when the sludge undergoes shear movement under the action of shear force, it can promote the uniform distribution of microorganisms in the sludge and facilitate the diffusion of microorganisms, thereby improving the sewage treatment efficiency.

[0033] In the present invention, the crankshaft rotates, so that the swing arm drives the hinge rod to swing reciprocally. During the reciprocal swing of the hinge rod, it will correspondingly drive the first floating block and the second floating block to move up and down alternately, so that the first floating block and the second floating block generate shear force on the sludge in the reaction chamber. The structure is simple and the cost is low.

[0034] In the present invention, when the second floating block moves upward, it will drive the trapezoidal plate to turn upward, so that the trapezoidal groove is in an open state. Since the flow rate of the sewage in the reaction chamber increases when the circulation pump starts, the water flow entering the reaction chamber is dispersed. On the one hand, when the dispersed water flow contacts the sludge, the impact force on the sludge is small. On the other hand, due to the increase in the flow rate of the sewage in the reaction chamber, turbulence may be formed under the folding plate. The turbulence has a large shear force on the microorganisms in the sludge, so that the microorganisms are damaged. By making the trapezoidal groove open, the formation of turbulence under the folding plate is avoided, thereby preventing the microorganisms from being damaged by the shear force generated by the turbulence. Description of the Drawings

[0035] Figure 1 is the overall structural schematic diagram of an ABR anaerobic process enhanced wastewater treatment device in the present invention;

[0036] Figure 2 is Figure 1 the positional relationship schematic diagram from another perspective in

[0037] Figure 3 is Figure 1Schematic diagram of the positional relationship after partial dissection of the middle part;

[0038] Figure 4 is Figure 3 Schematic diagram of the positional relationship from another perspective in the middle part;

[0039] Figure 5 is Figure 1 Schematic diagram of the positional relationship after omitting the treatment bin in the middle part;

[0040] Figure 6 is Figure 5 Schematic diagram of the positional relationship from another perspective in the middle part;

[0041] Figure 7 is Figure 6 Enlarged schematic diagram of the local structure at position A in the middle part;

[0042] Figure 8 Schematic diagram of the positional relationship after the assembly of the deflector, folding plate and trapezoidal plate in the present invention;

[0043] Figure 9 is Figure 8 Enlarged schematic diagram of the local structure at position B in the middle part;

[0044] Figure 10 Schematic diagram of the positional relationship after the assembly of the thickened plate, first floating block and second floating block in the present invention;

[0045] Figure 11 is Figure 10 Schematic diagram of the positional relationship from another perspective in the middle part.

[0046] Reference numerals: 1, water inlet pipe; 2, water outlet pipe; 3, circulation pump; 4, water inlet; 5, treatment bin; 6, thickened plate; 7, exhaust port; 8, sewage outlet; 9, first floating block; 10, second floating block; 11, crankshaft; 12, partition plate; 13, folding plate; 14, threaded sleeve; 15, overflow port; 16, deflector; 17, water outlet; 18, reaction chamber; 19, elastic member; 20, connecting shaft; 21, trapezoidal plate; 22, dial block; 23, hinge seat; 24, threaded collar; 25, telescopic rod; 26, connecting member; 27, swing arm; 28, hinge rod. Detailed implementation manners

[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] As Figures 1-11As shown in the figure, this embodiment provides an ABR anaerobic process enhanced wastewater treatment device, including a treatment chamber 5 of a baffle reactor. The treatment chamber 5 is hollow inside. Support ears are welded to the outer walls on both sides in the width direction of the treatment chamber 5. Through the support ears, the treatment chamber 5 can be embedded and installed on the workshop floor, and the bottom of the treatment chamber 5 can be suspended. Water inlets 4 and water outlets 17 are respectively provided on both side walls in the length direction of the treatment chamber 5. The water inlet 4 is connected to an external conveying system through a pipeline. The external conveying system conveys the sewage to be treated from the water inlet 4 into the treatment chamber 5. The water outlet 17 is connected to an external advanced treatment device or a collection device through a pipeline. A plurality of partition plates 12 and a plurality of guide plates 16 are vertically and fixedly connected to the inner wall of the treatment chamber 5 along the length direction of the treatment chamber 5. A reaction chamber 18 is formed between the guide plate 16 and an adjacent partition plate 12. An overflow port 15 is opened on the upper side of the partition plate 12. The height of the overflow port 15 is slightly lower than that of the water inlet 4 and the water outlet 17. A plurality of sewage discharge ports 8 and exhaust ports 7 are respectively provided on the side wall and the top surface of the treatment chamber 5. The sewage discharge ports 8 and the exhaust ports 7 are sequentially connected to a plurality of reaction chambers 18;

[0049] A plurality of circulation pumps 3 are installed on the top of the treatment chamber 5 by means of screws. The installation positions and the number of the circulation pumps 3 match the reaction chambers 18, that is, each reaction chamber 18 is matched with one circulation pump 3. The water inlet end and the water outlet end of the circulation pump 3 are respectively and sequentially installed with a water inlet pipe 1 and a water outlet pipe 2. The lower ends of the water inlet pipe 1 and the water outlet pipe 2 extend into the reaction chamber 18 of the treatment chamber 5. In addition, the horizontal distance between the lower ends of the water inlet pipe 1 and the water outlet pipe 2 is relatively large. The circulation pump 3 is powered by an external power supply. At the same time, the circulation pump 3 is controlled by an external control cabinet to start intermittently. The interval time of the intermittent start can be set to 2-3 hours;

[0050] A thickened plate 6 is welded to the bottom of the processing chamber 5, and two groups of floating blocks are vertically slidably penetrated on the bottom surface of the thickened plate 6, and the two groups of floating blocks are defined as a first floating block 9 and a second floating block 10 respectively. The first floating block 9 and the second floating block 10 are staggered, and a sealing through-hole is provided at the bottom of the processing chamber 5 for the first floating block 9 and the second floating block 10 to pass freely. The first floating block 9 and the second floating block 10 are in a sliding sealing state with the inner wall of the sealing through-hole. For example, a sliding sealing ring can be installed on the inner wall of the sealing through-hole, so that the first floating block 9 and the second floating block 10 can be in a sliding sealing state with the inner wall of the sealing through-hole. The outer walls on both sides of the thickened plate 6 corresponding to the width direction of the processing chamber 5 are each integrally fixed with an ear plate extending downward, and the two ear plates at both ends of the same thickened plate 6 are connected to a crankshaft 11 for horizontal rotation together through the installation bearing, and the periphery of the crankshaft 11 is integrally A plurality of swing arms 27 are fixedly connected in a molded manner, and two adjacent swing arms 27 are respectively distributed on both sides of the crankshaft 11 in a radial direction. The swing arms 27 are rotatably connected to hinge rods 28, and one end of the hinge rod 28 away from the swing arms 27 is correspondingly hinged to the bottom of the first floating block 9 and the second floating block 10. The crankshaft 11, the swing arms 27, the first floating block 9 (the second floating block 10) and the hinge rod 28 constitute a crank slider mechanism, so that when the crankshaft 11 rotates, the swing arms 27 will rotate, and then the hinge rod 28 will swing back and forth, and then the first floating block 9 (the second floating block 10) can be driven to move up and down. In addition, the ends of the two adjacent crankshafts 11 are connected by a pulley, and one of the crankshafts 11 is driven to rotate by an external motor, so that when the motor drives the crankshaft 11 to rotate, the other crankshafts 11 can be synchronously rotated through the transmission of the pulley;

[0051] There is a gap between the opposite surfaces of the first floating block 9 and the second floating block 10 that penetrate into the processing chamber 5. The gap and the inner wall of the processing chamber 5 form a shear force buffer space. The lower end of the guide plate 16 is fixedly connected to a folded plate 13 that extends obliquely toward the shear force buffer space, and the inclination angle of the folded plate 13 is 45° (refer to Figure 8 , the inclination angle is the minimum angle between the width direction of the folding plate 13 and the height direction of the guide plate 16), a plurality of trapezoidal grooves are provided on the surface of the folding plate 13, and the maximum end of the inner wall width of the trapezoidal groove faces the shear force buffer space. Furthermore, each shear force buffer space corresponds to the center of the trapezoidal plate 21, and the outer wall of the folding plate 13 is rotatably connected with a plurality of trapezoidal plates 21 by installing a pivot. The trapezoidal plates 21 are engaged in the trapezoidal grooves and are adapted to the contour of the trapezoidal grooves. A shift block 22 is provided on a side of the second floating block 10 facing the trapezoidal plate 21. When the second floating block 10 moves upward, the shift block 22 will contact the trapezoidal plate 21 and shift the trapezoidal plate 21 to flip upward.

[0052] An ear block is fixedly connected to the upward side of the trapezoidal plate 21, and a connecting shaft 20 is rotatably connected between the ear blocks of multiple trapezoidal plates 21 on the same folding plate 13. A connecting piece 26 is rotatably mounted on the connecting shaft 20. A hinge seat 23 is connected to the surface of the guide plate 16 by screws. A threaded sleeve 14 is hinged on the hinge seat 23. A telescopic rod 25 is coaxially telescopically mounted in the threaded sleeve 14. In addition, a stop block is provided at one end of the telescopic rod 25 that penetrates into the threaded sleeve 14, so that the telescopic rod 25 will not be separated from the threaded sleeve 14. A threaded collar 24 is threadedly mounted on the peripheral edge of the threaded sleeve 14. An elastic member 19 is provided between the threaded collar 24 and the connecting piece 26. When the ladder When the trapezoidal plate 21 moves upwards by the second floating block 10 and is pushed upwards by the shifting block 22, the trapezoidal plate 21 will flip upwards around the axial direction of the pivot, and the connecting shaft 20 drives the connecting member 26 to move upwards, so that the connecting member 26 compresses the elastic member 19, and the elastic member 19 accumulates elastic potential energy, and at the same time, the telescopic rod 25 is retracted into the threaded sleeve 14. When the second floating block 10 moves downwards to reset the welding wire, the elastic potential energy of the elastic member 19 is released, thereby driving the connecting member 26 to move downwards, so that the telescopic rod 25 can extend from the threaded sleeve 14, and the trapezoidal plate 21 can quickly move downwards and reset. In addition, in this embodiment, the elastic member 19 can be set as a spring.

[0053] The working principle of this embodiment is as follows:

[0054] The external conveying system conveys the sewage to be treated from the water inlet 4 to the treatment chamber 5, and then enters the Figure 3 In the first reaction chamber 18 shown, during the process of flowing into the reaction chamber 18, the water flow is interfered by the folding plate 13, thereby avoiding the flow dead corner under the guide plate 16 and avoiding the short-circuit flow by reducing the water flow speed. The sludge in the sewage will accumulate in the reaction chamber 18, and the anaerobic microorganisms in the sludge will contact the sewage and react with the organic matter in the sewage. When the sewage water level in the first reaction chamber 18 reaches the height of the overflow port 15, the sewage will enter the second reaction chamber 18 and repeat the above-mentioned treatment process.

[0055] The circulation pump 3 is intermittently started by an external control device. When the circulation pump 3 starts, a part of the sewage in the reaction chamber 18 is pumped out through the water inlet pipe 1, and then flows back into the reaction chamber 18 through the water outlet pipe 2, thereby increasing the flow rate of the sewage in the reaction chamber 18 and enhancing the contact with the sludge. When the circulation pump 3 starts, the external control device controls the external motor to start, causing the crankshaft 11 to rotate. When the crankshaft 11 rotates, the swing arm 27 drives the hinge rod 28 to reciprocate. During the reciprocating movement of the hinge rod 28, the first floating block 9 and the second floating block 10 are correspondingly driven to move up and down alternately, so that the first floating block 9 and the second floating block 10 generate a jacking force on the sludge in the reaction chamber 18, making the movement states of the sludge in different regions of the reaction chamber 18 opposite, and thus enabling the sludge to generate shear force. When the sludge is subjected to the shear force, larger voids are formed on the shear surface, so that the sewage can fully enter the sludge and mix with the sludge;

[0056] In addition, when the second floating block 10 moves upward, the dial block 22 jacks up the trapezoidal plate 21, causing the trapezoidal plate 21 to turn upward around the axial direction of the pivot. When turning upward, the opening of the trapezoidal groove is opened. Thus, when the circulation pump 3 starts, the flow rate of the sewage in the reaction chamber 18 increases, so that the water flow entering the reaction chamber 18 is dispersed. On the one hand, when the dispersed water flow contacts the sludge, the impact force on the sludge is smaller. On the other hand, the increase in the flow rate of the sewage in the reaction chamber 18 may form a turbulent flow under the baffle plate 13. The turbulent flow has a large shear force on the microorganisms in the sludge, thereby causing the microorganisms to be damaged. By opening the trapezoidal groove, the formation of turbulent flow under the baffle plate 13 is avoided, so as to prevent the microorganisms from being damaged by the shear force generated by the turbulent flow. After the above treatment, the sewage flows from the last reaction chamber 18 into the water outlet 17, and then enters the subsequent advanced treatment equipment for advanced treatment, or enters the external collection equipment for collection and treatment.

[0057] The above is only the preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An ABR anaerobic process enhanced wastewater treatment device, comprising a treatment chamber of a baffle reactor, wherein the two side walls of the treatment chamber in the length direction are respectively provided with a water inlet and a water outlet, a plurality of partition plates and a plurality of guide plates are vertically fixedly connected to the inner wall of the treatment chamber along the length direction of the treatment chamber, a reaction chamber is enclosed between the guide plate and an adjacent partition plate, an overflow port is opened on the upper side of the partition plate, and the characteristics are as follows: Also includes: A plurality of circulation pumps are installed on the top of the processing chamber, and the water inlet end and the water outlet end of the circulation pump are respectively installed with a water inlet pipe and a water outlet pipe in sequence, and the lower ends of the water inlet pipe and the water outlet pipe extend into the reaction chamber of the processing chamber; A plurality of sludge shearing components are arranged at the bottom of the processing bin, the plurality of sludge shearing components respectively correspond to the plurality of reaction chambers, and are used to generate shear force on the sludge in the reaction chamber when the circulating pump is started. The sludge shearing components include a thickened plate fixed to the bottom of the processing bin, two groups of floating blocks are vertically slidably penetrated on the surface of the thickened plate, the two groups of floating blocks are respectively defined as a first floating block and a second floating block, the first floating block and the second floating block are staggered, a sealing through hole is opened at the bottom of the processing bin for the first floating block and the second floating block to pass freely, the first floating block, the second floating block and the inner wall of the sealing through hole are in a sliding sealing state, and a device for driving the first floating block and the second floating block is provided on the thickened plate The lifting drive unit has two floating blocks that slide vertically alternately. There is a gap between the opposite surfaces of the parts where the first floating block and the second floating block penetrate into the processing chamber. The gap and the inner wall of the processing chamber form a shear force buffer space. A folding plate that extends obliquely toward the shear force buffer space is fixedly connected to the lower end of the guide plate. A plurality of trapezoidal grooves are provided on the surface of the folding plate. The maximum end of the width of the inner wall of the trapezoidal groove faces the shear force buffer space. A plurality of trapezoidal plates are connected to the outer wall of the folding plate by installing a pivot. The trapezoidal plates are engaged with the trapezoidal grooves and match the contour of the trapezoidal grooves. A shift block is provided on the side of the second floating block facing the trapezoidal plate. When the second floating block moves upward, the shift block will contact the trapezoidal plate and shift the trapezoidal plate to flip upward.

2. The ABR anaerobic process enhanced wastewater treatment device according to claim 1, characterized in that: The side wall and the top surface of the processing chamber are respectively provided with a plurality of sewage outlets and exhaust outlets, and the sewage outlets and the exhaust outlets are respectively connected with a plurality of reaction chambers in sequence.

3. The ABR anaerobic process enhanced wastewater treatment device according to claim 1, characterized in that: The lifting drive unit includes ear plates integrally fixed to both ends of the thickened plate, the ear plates at both ends of the same thickened plate are commonly connected to a crankshaft for horizontal rotation, a plurality of swing arms are integrally fixed to the periphery of the crankshaft, two adjacent swing arms are respectively distributed on both sides of the radial direction of the crankshaft, the swing arm is rotatably connected to a hinge rod, and the end of the hinge rod away from the swing arm is correspondingly hinged to the bottom of the first floating block and the second floating block.

4. The ABR anaerobic process enhanced wastewater treatment device according to claim 1, characterized in that: The inclination angle of the folding plate is 45°.

5. The ABR anaerobic process enhanced wastewater treatment device according to claim 4, characterized in that: The upward sides of the multiple trapezoidal plates on the same folding plate are rotatably connected with a connecting shaft, and the guide plate is provided with a reset structure for driving the connecting shaft to move downward so that the surface of the trapezoidal plate is flush with the surface of the folding plate.

6. An ABR anaerobic process for enhanced wastewater treatment, applied to the wastewater treatment device according to any one of claims 1 to 5, characterized in that: include: The sewage is transported from the water inlet to the treatment chamber. After filling the reaction chamber, the sewage will flow into the next reaction chamber from the overflow port. When flowing in each reaction chamber, the sludge in the reaction chamber will come into contact with the sewage, and the anaerobic microorganisms in the sludge will treat the sewage. The circulation pump is started intermittently through an external control device. When the circulation pump is started, suction will be generated on the sewage in the reaction chamber. Part of the sewage will enter the circulation pump through the water inlet pipe, and then flow back into the reaction chamber through the water outlet pipe, so that the sewage in the reaction chamber is in a flowing state, increasing the contact between the sewage and the sludge; When the circulation pump is started, the external control device simultaneously starts the sludge shearing component, which will drive the sludge in different areas of the reaction chamber to move up and down alternately, and the sludge movement states of adjacent areas are opposite, thereby subjecting the sludge in the reaction chamber to shear force, and finally the treated sewage will flow into the external equipment from the outlet.

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