High-concentration organic wastewater treatment device based on microbial technology

Abstract

The invention provides a high-concentration organic wastewater treatment device based on a microbial technology, and relates to the technical field of sewage treatment.The high-concentration organic wastewater treatment device comprises a treatment pond, a regulating pond, a biological membrane reaction pond and a sedimentation pond are arranged in the treatment pond, and semicircular upper aeration pipes are fixedly connected to the two sides of the bottom end of the biological membrane reaction pond correspondingly. Flexible adjustment can be carried out in a biological membrane reaction tank, the aeration pipes on the two sides can simultaneously and oppositely blow to create a high-shear stagnation region in the center of the tank, directionally strip an aged biological membrane and synchronously homogenize substrate and dissolved oxygen distribution, and can also laterally blow to an inlet end to quickly push a high-activity carrier to a pollutant peak region, so that the front-end removal rate is instantaneously increased, and the removal efficiency is improved. Peroxidation is inhibited by means of the low membrane density of the rear section, and meanwhile, transverse circulation can be driven by oppositely blowing the left side and the right side, so that part of depleted biological membranes are repeatedly subjected to high substrate gradient stimulation, deep bacterial activity recovery and membrane renewal are promoted, the membrane layer is prevented from being too thick in the low-load period, and multi-gear circulation switching is achieved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a device for treating high-concentration organic wastewater based on microbial technology. Background Technology

[0002] The microbial-based wastewater treatment device mainly consists of an equalization tank, an MBBR reactor, a secondary sedimentation tank, and an automatic control system. The core is the moving bed biofilm reactor (MBBR). Suspended packing material with a specific gravity slightly lighter than water is added to the reactor. Under the impetus of aeration, it is in a fluidized state, forming a three-phase microbial system of gas, liquid, and solid. A large amount of biofilm grows on the surface and inside of the carrier. The anaerobic layer hydrolyzes complex organic matter, and the aerobic layer completely mineralizes degradable components into carbon dioxide and water, simultaneously completing nitrification and denitrification. There is no need for sludge return and backwashing. It can withstand high load shocks, operates quietly, consumes little energy, occupies little space, and can be operated unattended. Even in winter when the temperature is low and the influent concentration fluctuates greatly, the biofilm still maintains high activity. The effluent is clear and odorless, stably meeting the discharge standards, and the amount of residual sludge is significantly reduced. It achieves efficient, low-consumption, and intelligent treatment of high-concentration organic wastewater.

[0003] MBBR reactors are widely used for high-concentration organic wastewater due to their impact resistance and small footprint. However, current aeration systems still use fixed perforated pipes or microporous discs at the bottom of the tank, and the aeration position, direction, and intensity are not adjustable. During operation, the packing material is pushed unidirectionally with the water flow, resulting in accumulation at the front end and sparseness at the rear end, leading to a large difference in horizontal concentration, forming dead zones and reducing oxygen mass transfer efficiency. Furthermore, the rising path of the bubbles is constant, and local shear forces continuously act on the same biofilm, causing the outer layer to be too thick and the inner layer to be black and smelly. Regular shutdowns of the tank and large-volume flushing are required, increasing energy consumption and maintenance. Moreover, when the influent water quality fluctuates, the only way to extend the retention time or enhance oxygen supply is to use a variable frequency influent pump or increase the overall air volume.

[0004] Therefore, a high-concentration organic wastewater treatment device based on microbial technology is proposed to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a high-concentration organic wastewater treatment device based on microbial technology, which can solve the technical problem that the aeration area and airflow direction cannot be adjusted online in the prior art.

[0006] The technical solutions provided by the embodiments of the present invention are as follows: This invention provides a high-concentration organic wastewater treatment device based on microbial technology, comprising a treatment tank, an equalization tank, a biofilm reaction tank, and a sedimentation tank. Semi-circular upper aeration pipes are fixedly connected to both sides of the bottom of the biofilm reaction tank. A pair of baffles are fixedly connected to the inner side of each upper aeration pipe, dividing the upper aeration pipe into three sets of hollow chambers. Three sets of aeration holes are equidistantly distributed on the outer wall of each upper aeration pipe. An outer pipe, a middle pipe, and an inner pipe are respectively fixedly connected through the top ends of the two upper aeration pipes. An adjusting block is fixedly connected to the top of the biofilm reaction tank. T-shaped grooves are formed at both ends of the adjusting block. The top end of the outer pipe is fixedly connected through the top of the longitudinal end of the T-shaped groove. The top end of the middle pipe is fixedly connected through the bottom end of the longitudinal sidewall of the T-shaped groove. The top end of the inner pipe is fixedly connected through the transverse end of the T-shaped groove. An adjusting mechanism for adjusting the air outlet position within the T-shaped groove is also provided.

[0007] Furthermore, each set of aeration holes is connected to each set of cavity chambers, and the outer tube, middle tube, and inner tube are all connected to the corresponding cavity chambers.

[0008] Furthermore, the adjusting mechanism includes an upper sealing block and a lower sealing block. A pair of upper circular frames are fixedly connected to the transverse end of the T-slot. Lower circular frames are fixedly connected to both the upper and lower sides of the longitudinal end of the T-slot relative to the upper circular frames. A longitudinal plate is slidably connected to the transverse end of the T-slot relative to the upper circular frames. A transverse plate is slidably connected to the longitudinal end of the T-slot relative to the lower circular frames. The middle part of the upper sealing block is fixedly connected to the side wall of the longitudinal plate. The middle part of the lower sealing block is fixedly connected to the side wall of the transverse plate. A pair of vertical and horizontal slots are opened through the rear side of the adjusting block. An upper rod is fixedly connected to the rear side of the longitudinal plate relative to the position inside the horizontal slot. A lower rod is fixedly connected to the rear side of the transverse plate relative to the position inside the vertical slot. A rear frame is installed on the rear side of the adjusting block by bolt sealing. A moving mechanism for driving the upper and lower rods to move is provided on the rear frame.

[0009] Furthermore, both the upper and lower sealing blocks are made of rubber, and are circular in shape. Both ends of the upper and lower sealing blocks are inclined, and the rear ends of the upper and lower rods extend into the rear frame.

[0010] Furthermore, the moving mechanism includes an electric telescopic cylinder, which is fixedly connected to the rear side of the rear frame, and the output end of the electric telescopic cylinder is slidably connected to the inner side of the rear frame. The output end of the electric telescopic cylinder is fixedly connected to a top plate. A pair of adjusting plates are slidably connected laterally to the inner side of the rear frame. The two adjusting plates are inclined on opposite sides. One adjusting plate has a long groove through its side wall relative to the rear side of the upper rod, and the other adjusting plate has a short groove through its side wall relative to the rear side of the upper rod. A round rod is fixedly connected to the top of each adjusting plate. The tops of the two top plates have a long inclined groove and a short inclined groove through their respective tops. A straight groove is formed on the rear side of the short inclined groove. The inclined directions of the long inclined groove and the short inclined groove are symmetrical. The length of the short inclined groove is two-thirds of the length of the long inclined groove.

[0011] Furthermore, an upper spring is fixedly connected between the side wall of the longitudinal plate and one of the upper circular frame side walls, and a lower spring is fixedly connected between the side wall of the transverse plate and the bottom end of one of the lower circular frames.

[0012] Furthermore, the length of the short groove is half the length of the long groove, the round rod above the long groove is inserted into the long inclined groove, and the other round rod is inserted into the inside of the short inclined groove.

[0013] Furthermore, a storage frame is fixedly connected to the front side of the adjustment block, and a top groove is provided through the rear side of the adjustment block relative to the position inside the storage frame.

[0014] Furthermore, a connecting groove is provided inside the adjusting block relative to the bottom of the lateral end of the T-shaped groove, a through hole is provided through the middle of the rear side of the adjusting block, and the through hole is connected to the connecting groove. An air inlet pipe is fixedly connected to the front side of the through hole, and the air inlet pipe is connected to the air outlet of the external aeration equipment. A rear pipe is fixedly connected to the middle of the rear side of the inner wall of the biofilm reaction tank.

[0015] Furthermore, the top end of the rear pipe is fixedly connected to the rear side of the through hole, and a central aeration pipe is fixedly connected to the middle of the bottom end of the biofilm reaction tank. The bottom end of the rear pipe and the central aeration pipe are fixedly connected through the pipe, and a solenoid valve is installed on the central aeration pipe.

[0016] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this invention, an adjustable aeration structure on both sides is adopted, which can aerate towards the middle after adjustment, driving the packing to form a high shear turbulence zone in the center of the tank. The horizontal concentration gradient is quickly smoothed out, and the shearing generated by the secondary rupture of bubbles removes the aging film. The film thickness always falls within the optimal activity range. At the same time, the dead zone at the tail end of the unidirectional flow is eliminated, and the uniformity of dissolved oxygen is improved. It can be used as the main mode of online self-cleaning. It can also adjust the aeration structures on both sides to blow towards the inlet, pushing the fresh packing material and the highly active biofilm together to the back of the tank. The side blowing at the inlet end can quickly push the highly active carrier to the pollutant peak area, instantly increasing the front-end removal rate, and inhibiting peroxidation by using the low membrane density in the back section. Furthermore, the aeration structures on both sides can be adjusted to blow to both sides, and the packing material is thrown against the tank wall and then folded back, forming a horizontal figure-eight circulation. This allows the partially depleted biofilm to repeatedly undergo high substrate gradient stimulation, promoting the recovery of deep-layer bacterial activity and membrane renewal, preventing the membrane layer from becoming too thick during low-load periods. With multiple circulation switching, the carrier flow pattern, membrane thickness, and bacterial community function can be dynamically optimized, ensuring continuous, efficient, low-consumption, and stable treatment of high-concentration organic wastewater, and improving the flexibility of the device. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the treatment tank of the present invention. Figure 2 This is a rear-view three-dimensional structural diagram of the treatment pool of the present invention; Figure 3 This is a top-view three-dimensional structural diagram of the biofilm reaction tank of the present invention; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the adjusting block and the upper aeration pipe of the present invention. Figure 5 This is a top-view full-section three-dimensional structural diagram of the adjusting block and rear frame of the present invention; Figure 6 This is a top-view full-section three-dimensional structural diagram of the adjustment block and rear frame separated from the top plate of the present invention; Figure 7 This is a rear-view perspective view of the adjustment block and adjustment plate of the present invention. Figure 8 This is a rear-view partial cross-sectional three-dimensional structural diagram of the adjustment block of the present invention; Figure 9 Appendix of the present invention Figure 8 A magnified view of the structure at point A in the middle; Figure 10 This is a schematic diagram of the aeration process in the biofilm reactor of the present invention. Figure 11 This is a schematic diagram of aeration at the inlet of the biofilm reactor of the present invention; Figure 12This is a schematic diagram of the aeration of the biofilm reactor of the present invention to both sides.

[0019] Explanation of reference numerals in the attached diagram: 1. Treatment tank; 2. Equalization tank; 3. Biofilm reaction tank; 4. Sedimentation tank; 5. Upper aeration pipe; 6. Baffle plate; 7. Aeration hole; 8. Outer pipe; 9. Middle pipe; 10. Inner pipe; 11. Adjustment block; 12. T-shaped trough; 13. Upper circular frame; 14. Lower circular frame; 15. Longitudinal plate; 16. Horizontal plate; 17. Upper rod; 18. Lower rod; 19. Rear frame; 20. Upper spring ; 21. Lower spring; 22. Electric telescopic cylinder; 23. Top plate; 24. Adjusting plate; 25. Long groove; 26. Short groove; 27. Round rod; 28. Long inclined groove; 29. ​​Straight groove; 30. Short inclined groove; 31. Storage frame; 32. Top groove; 33. Connecting groove; 34. Air inlet pipe; 35. Rear pipe; 36. Middle aeration pipe; 37. Upper sealing block; 38. Lower sealing block; 39. Solenoid valve.

[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this invention.

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention.

[0024] In actual use, it was found that the current aeration system still uses fixed perforated pipes or microporous discs at the bottom of the pool. The aeration position, direction and intensity are not adjustable. During operation, the packing moves unidirectionally with the water flow, accumulating at the front and sparse at the back, resulting in a large difference in horizontal concentration, forming dead zones and reducing oxygen mass transfer efficiency. In addition, the rising path of the bubbles is constant, and the local shear force continues to act on the same biofilm, resulting in an excessively thick outer layer and a black and smelly inner layer. It is necessary to shut down the pool regularly and flush with a large volume of air, which increases energy consumption and maintenance. Moreover, when the influent water quality fluctuates, the only way to extend the residence time or enhance oxygen supply is to use a variable frequency influent pump or increase the overall air volume.

[0025] Reference manual attached Figures 1 to 12 This invention provides a high-concentration organic wastewater treatment device based on microbial technology, including a treatment tank 1. The treatment tank 1 is equipped with an equalization tank 2, a biofilm reaction tank 3, and a sedimentation tank 4. Semi-circular upper aeration pipes 5 are fixedly connected to both sides of the bottom of the biofilm reaction tank 3. During operation, the wastewater first passes through the equalization tank 2 to homogenize and equalize the flow, thus mitigating the impact. Then, it enters the biofilm reaction tank 3. The suspended packing material in the tank is fluidized under the aeration blown out by the upper aeration pipes 5, forming an orderly anaerobic and aerobic biofilm of varying thicknesses. The high-concentration organic matter is simultaneously hydrolyzed, mineralized, nitrified, and denitrified. The effluent, carrying the detached biofilm, flows into the sedimentation tank 4. After gravity separation, the clear water meets the discharge standards, and a small amount of settled sludge is recycled or discharged. A pair of partitions 6 are fixedly connected to the inner side of the upper aeration pipe 5. The partitions 6 divide the upper aeration pipe 5 into three sets of empty chambers. Three sets of aeration holes 7 are evenly distributed on the outer wall of the upper aeration pipe 5. The top ends of the two upper aeration pipes 5 are respectively fixedly connected to the outer pipe 8, the middle pipe 9 and the inner pipe 10. The top end of the biofilm reaction tank 3 is fixedly connected to the adjusting block 11. T-shaped grooves 12 are opened at both ends inside the adjusting block 11. The top end of the outer pipe 8 is fixedly connected to the top of the longitudinal end of the T-shaped groove 12. The top end of the middle pipe 9 is fixedly connected to the bottom end of the longitudinal side wall of the T-shaped groove 12. The top end of the inner pipe 10 is fixedly connected to the transverse end of the T-shaped groove 12. An adjusting mechanism for adjusting the air outlet position in the T-shaped groove 12 is also provided. Furthermore, each set of aeration holes 7 is connected to each set of cavity chambers, and the outer pipe 8, middle pipe 9 and inner pipe 10 are all connected to the corresponding cavity chambers; The adjustment mechanism includes an upper sealing block 37 and a lower sealing block 38. A pair of upper circular frames 13 are fixedly connected to the transverse end of the T-slot 12. Lower circular frames 14 are fixedly connected to the longitudinal end of the T-slot 12 at both the upper and lower sides of the upper circular frames 13. A longitudinal plate 15 is slidably connected to the transverse end of the T-slot 12 relative to the upper circular frames 13. A transverse plate 16 is slidably connected to the longitudinal end of the T-slot 12 relative to the lower circular frames 14. The middle part of the upper sealing block 37 is fixedly connected to the side wall of the longitudinal plate 15, and the middle part of the lower sealing block 38 is fixedly connected to the side wall of the transverse plate 16. A pair of vertical and horizontal slots are opened through the rear side of the adjustment block 11. An upper rod 17 is fixedly connected to the rear side of the longitudinal plate 15 relative to the position inside the horizontal slot. A lower rod 18 is fixedly connected to the rear side of the transverse plate 16 relative to the position inside the vertical slot. A rear frame 19 is installed on the rear side of the adjustment block 11 by bolt sealing. A moving mechanism for driving the upper rod 17 and the lower rod 18 to move is provided on the rear frame 19. Both the upper sealing block 37 and the lower sealing block 38 are made of rubber. The upper sealing block 37 and the lower sealing block 38 are round, and both ends of the upper sealing block 37 and the lower sealing block 38 are inclined. The rear ends of the upper rod 17 and the lower rod 18 extend into the rear frame 19. The moving mechanism includes an electric telescopic cylinder 22, which is fixedly connected to the rear side of the rear frame 19. The output end of the electric telescopic cylinder 22 is sealed and slidably connected to the inner side of the rear frame 19. The output end of the electric telescopic cylinder 22 is fixedly connected to a top plate 23. A pair of adjusting plates 24 are slidably connected to the inner side of the rear frame 19. The two adjusting plates 24 are inclined on opposite sides. One adjusting plate 24 has a long groove 25 through its side wall relative to the rear side of the upper rod 17. The other adjusting plate 24 has a short groove 26 through its side wall relative to the rear side of the upper rod 17. The top of each adjusting plate 24 is fixedly connected to a round rod 27. The tops of the two top plates 23 are respectively provided with a long inclined groove 28 and a short inclined groove 30. A straight groove 29 is provided on the rear side of the short inclined groove 30. The inclined directions of the long inclined groove 28 and the short inclined groove 30 are symmetrical. The length of the short inclined groove 30 is two-thirds of the length of the long inclined groove 28. An upper spring 20 is fixedly connected between the side wall of the longitudinal plate 15 and the side wall of one of the upper circular frames 13, and a lower spring 21 is fixedly connected between the side wall of the transverse plate 16 and the bottom end of one of the lower circular frames 14. Through the setting of the lower spring 21 of the upper spring 20, the upper sealing block 37 and the lower sealing block 38 can be driven to quickly reset after the equipment is reset. The length of the short groove 26 is half the length of the long groove 25. The round rod 27 above the long groove 25 is inserted into the long inclined groove 28, and another round rod 27 is inserted into the inside of the short inclined groove 30. A storage frame 31 is fixedly connected to the front side of the adjusting block 11, and a top groove 32 is provided through the rear side of the adjusting block 11 relative to the position inside the storage frame 31. The storage frame 31 and the top groove 32 are provided to avoid obstructing the sliding of the top plate 23, thereby affecting the normal adjustment of the equipment. A connecting groove 33 is provided inside the adjusting block 11 relative to the bottom of the lateral end of the T-shaped groove 12. A through hole is provided in the middle of the rear side of the adjusting block 11, and the through hole is connected to the connecting groove 33. An air inlet pipe 34 is fixedly connected to the front side of the through hole, and the air inlet pipe 34 is connected to the air outlet of the external aeration equipment. A rear pipe 35 is fixedly connected to the middle of the rear side of the inner wall of the biofilm reaction tank 3. The top end of the rear pipe 35 is fixedly connected to the rear side of the through hole. A central aeration pipe 36 is fixedly connected to the middle of the bottom end of the biofilm reaction tank 3, and the bottom end of the rear pipe 35 is fixedly connected to the central aeration pipe 36 through it. A central aeration pipe 36 is added between the two upper aeration pipes 5. A solenoid valve 39 is installed on the central aeration pipe 36. Through the setting of the central aeration pipe 36 and the solenoid valve 39, a three-zone turbulence can be formed in the width direction of the tank during the aeration process of blowing air to the middle. The central jet lifts the carrier, the airflow on both sides pushes laterally, and the three converge to generate a secondary vortex, so that the packing material is frequently repositioned in both vertical and horizontal directions. Local shearing moderately peels off the aging film, resulting in uniform film thickness and improved oxygen mass transfer coefficient. At the same time, it eliminates the wall stagnation zone that is prone to occur in unilateral aeration, shortens the diffusion path of substrate and dissolved oxygen, makes the biofilm load distribution in the whole pond more uniform, enhances shock resistance, and reduces operating energy consumption. During the lateral blowing aeration, the controller needs to control the solenoid valve 39 to open intermittently, so that the central aeration pipe 36 only plays an auxiliary role in preventing sedimentation and peeling film during the lateral blowing stage, avoiding continuous airflow from interfering with the lateral circulation. At the same time, when aerating a single row at the inlet end, the controller will control the solenoid valve 39 to close, ensuring high-intensity push backflow at the inlet end. Initially, under the elastic force of the upper spring 20, the vertical plate 15 and the upper sealing block 37 are pushed tightly into one of the upper circular frames 13. Under the elastic force of the lower spring 21, the horizontal plate 16 and the lower sealing block 38 are pushed into the upper lower circular frame 14. Gas entering from the intake pipe 34 then flows through the connecting groove 33 into the space between the upper circular frames 13, and then through the unsealed upper circular frame 13 into the space between the lower circular frames 14. It then exits through the unsealed lower circular frame 14, enters the middle pipe 9, and then flows into the cavity in the middle of the upper aeration pipe 5. The air is discharged through the corresponding aeration holes 7 to achieve vertical aeration treatment in the biofilm reaction tank 3. When the aeration direction needs to be adjusted during the operation of the equipment, the electric telescopic cylinder 22 can be controlled to start and drive the top plate 23 to move. Since the adjustment plate 24 can only slide laterally in the rear frame 19, the round rod 27 on the adjustment plate 24 will slide in the corresponding long inclined groove 28 and short inclined groove 30 during the forward movement of the top plate 23. The round rod 27 in the long inclined groove 28 and short inclined groove 30 will be pushed by the pressure of the inclined surface to move the round rod 27 and the adjustment plate 24 laterally to both sides. During this process, the inclined surface of the adjusting plate 24 will press the lower rod 18 to move downward in the vertical groove, while simultaneously driving the horizontal plate 16 and the lower sealing block 38 to move downward and gradually compress the lower spring 21, thereby pulling the lower sealing block 38 out of the upper lower circular frame 14. Then the lower rod 18 moves out from the inclined surface of the adjusting plate 24 and moves to the bottom of the adjusting plate 24, which will then cause the bottom of the lower sealing block 38 to be tightly pressed into the lower circular frame 14 below. During this process, one of the upper rods 17 moves to the middle of the long groove 25, the other upper rod 17 moves to the other end of the short groove 26, and one of the round rods 27 moves to one-third of the long inclined groove 28, thereby releasing the seal on the upper lower circular frame 14. At this time, the gas entering between the lower circular frames 14 will be discharged into the outer pipe 8, and then discharged through the aeration holes 7 on the cavity of the two upper aeration pipes 5 that are close to each other, thereby tilting the upper aeration pipes 5 on both sides towards the middle for aeration.

[0026] In summary, the above structural design enables aeration towards the center after adjustment, driving the packing material to form a high-shear turbulence zone in the center of the tank. The horizontal concentration gradient is quickly smoothed out, and the shearing generated by the secondary rupture of bubbles removes the aged film. The film thickness always falls within the optimal activity range. At the same time, the dead zone at the tail end of the unidirectional flow is eliminated, and the uniformity of dissolved oxygen is improved. It can be used as the main mode for online self-cleaning.

[0027] During operation, when the aeration direction needs to be adjusted, the electric telescopic cylinder 22 can be controlled to continue to start, driving the top plate 23 to continue to move. The inclined surfaces of the long inclined groove 28 and the short inclined groove 30 compress the round rod 27 and the adjusting plate 24 to continue moving. During this process, the lower rod 18 will move at the bottom of the adjusting plate 24. At this time, the short groove 26 will push one of the upper rods 17 to move, thereby pushing the longitudinal plate 15 to move, driving one of the upper sealing blocks 37 to be pulled out from the upper round frame 13 on one side and compressing the upper spring 20. Then, one of the upper sealing blocks 37 will be driven to insert into the other upper round frame. In step 13, at the same time, another upper rod 17 moves to the end of the long groove 25, and the round rod 27 corresponding to the moving upper sealing block 37 moves to the connection between the short inclined groove 30 and the straight groove 29, thereby achieving the operation of sealing one side of the upper round frame 13 while keeping the other side unchanged. As a result, the upper round frame 13 is sealed, and the gas will not enter the longitudinal end of the T-shaped groove 12. The gas will be discharged from the open upper round frame 13, enter the inner tube 10, and be discharged from the aeration hole 7 near the water inlet. The aeration direction is the same as that of the other upper aeration pipe 5. The two upper aeration pipes 5 aerate at the water inlet at the same time. In summary, the above structural design allows the aeration structures on both sides to be simultaneously adjusted and blown towards the inlet, pushing the fresh packing material along with the highly active biofilm towards the back of the tank. The side blowing at the inlet end can quickly push the highly active carrier to the peak pollutant zone, instantly increasing the front-end removal rate, and inhibiting peroxidation by utilizing the low membrane density in the rear section.

[0028] During operation, when further adjustment of the aeration direction is required, the electric telescopic cylinder 22 can be controlled to continue operating, driving the top plate 23 to move. During this process, the round rod 27 that moves between the straight groove 29 and the short inclined groove 30 will slide into the straight groove 29, and the other round rod 27 will continue to slide under the compression of the long inclined groove 28. However, the round rod 27 that slides into the straight groove 29 will not be compressed at all, so it will not compress the adjusting plate 24 with the short groove 26. Then, through the sliding of the other adjusting plate 24, the long groove 25 on the adjusting plate 24 will push the corresponding upper rod. 17 slides, thereby pushing the longitudinal plate 15 to move, causing the corresponding upper sealing block 37 to be pulled out from the upper circular frame 13 on one side and compressing the upper spring 20. Then, one of the upper sealing blocks 37 is inserted into the other upper circular frame 13 to seal the longitudinal end of the T-slot 12. The gas that enters will then be discharged from the unsealed upper circular frame 13, enter the inner tube 10, and be discharged from the corresponding aeration hole 7. At this time, the aeration direction is to aerate to both sides at the same time. Finally, when it is necessary to reset, control the electric telescopic cylinder 22 to retract and repeat the above operation in reverse.

[0029] In summary, the above structural design allows the aeration structures on both sides to be adjusted to blow in both directions, causing the packing material to be thrown against the tank wall and then folded back, forming a transverse figure-eight circulation. This allows the partially depleted biofilm to repeatedly undergo high substrate gradient stimulation, promoting the recovery of deep-layer bacterial activity and membrane renewal. It also prevents the membrane layer from becoming too thick during low-load periods. With multiple circulation settings, the carrier flow pattern, membrane thickness, and bacterial community function can be dynamically optimized, ensuring continuous, efficient, low-consumption, and stable treatment of high-concentration organic wastewater and improving the flexibility of the device.

Claims

1. A high concentration organic wastewater treatment apparatus based on a microorganism technique, characterized by, The utility model provides a treatment pool (1) including, the inside of treatment pool (1) is equipped with adjusting pool (2), biological membrane reaction pool (3) and sedimentation tank (4), the bottom end both sides of biological membrane reaction pool (3) are fixedly connected with semicircular upper aeration pipe (5), one pair of baffle (6) is fixedly connected in the inside of upper aeration pipe (5), the baffle (6) will be isolated into three groups of cavity chamber in upper aeration pipe (5), three groups of aeration hole (7) are opened to the equal interval distribution of upper aeration pipe (5) outer wall, two upper aeration pipe (5) top respectively fixedly connected with outer tube (8), middle tube (9) and inner tube (10) are penetrated, the top of biological membrane reaction pool (3) is fixedly connected with adjusting block (11), both ends of adjusting block (11) inside are all opened T type groove (12), the top of outer tube (8) and the top of T type groove (12) longitudinal end are fixedly connected and penetrated between, the top of middle tube (9) and the bottom of T type groove (12) longitudinal end side wall are fixedly connected and penetrated between, the top of inner tube (10) and T type groove (12) transverse end are fixedly connected and penetrated, still be equipped with the adjusting mechanism for adjusting the air outlet position in T type groove (12).

2. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 1, characterized by, And every group aeration hole (7) with every group cavity chamber is connected, the outer tube (8), middle tube (9) and inner tube (10) all are communicated with the corresponding cavity chamber.

3. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 1, characterized by, The adjusting mechanism includes upper sealing block (37) and lower sealing block (38), the transverse end of T type groove (12) is fixedly connected with a pair of upper round frame (13), the longitudinal end of T type groove (12) is fixedly connected with lower round frame (14) relative to the upper and lower sides of upper round frame (13), the transverse end of T type groove (12) is connected with longitudinal plate (15) relative to the transverse sliding between upper round frame (13), the longitudinal end of T type groove (12) is connected with horizontal plate (16) relative to the longitudinal sliding between lower round frame (14), and the middle of upper sealing block (37) is fixedly connected in the side wall of longitudinal plate (15) and penetrated, the middle of lower sealing block (38) is fixedly connected in the side wall of horizontal plate (16) and penetrated, the rear side of adjusting block (11) is penetrated and is set up a pair of vertical groove and horizontal groove, and the rear side of longitudinal plate (15) is fixedly connected with upper rod (17) relative to the inner position of horizontal groove, the rear side of horizontal plate (16) is fixedly connected with lower rod (18) relative to the inner position of vertical groove, the rear side of adjusting block (11) is sealed and is installed with rear frame (19) through bolt, the rear frame (19) is equipped with the moving mechanism for driving upper rod (17) and lower rod (18) movement on.

4. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 3, characterized by, The upper sealing block (37) and lower sealing block (38) are all adopted rubber material, the upper sealing block (37) and lower sealing block (38) are set up as round block, and the both ends of upper sealing block (37) and lower sealing block (38) are all inclined to set, the rear end of upper rod (17) and lower rod (18) all extends to the inside of rear frame (19).

5. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 3, characterized by, The moving mechanism includes an electric telescopic cylinder (22), which is fixedly connected to the rear side of the rear frame (19). The output end of the electric telescopic cylinder (22) is sealed and slidably connected to the inner side of the rear frame (19). The output end of the electric telescopic cylinder (22) is fixedly connected to a top plate (23). A pair of adjusting plates (24) are slidably connected laterally to the inner side of the rear frame (19). The two adjusting plates (24) are inclined on opposite sides. One of the adjusting plates (24) has a through-hole opening on its side wall relative to the rear side of the upper rod (17). There is a long groove (25), and another adjustment plate (24) has a short groove (26) through the side wall relative to the rear side of the upper rod (17). The top of the adjustment plate (24) is fixedly connected to a round rod (27). The tops of the two top plates (23) are respectively provided with a long inclined groove (28) and a short inclined groove (30). A straight groove (29) is provided on the rear side of the short inclined groove (30). The inclined directions of the long inclined groove (28) and the short inclined groove (30) are symmetrically arranged. The length of the short inclined groove (30) is two-thirds of the length of the long inclined groove (28).

6. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 3, characterized by, An upper spring (20) is fixedly connected between the side wall of the longitudinal plate (15) and the side wall of one of the upper circular frames (13), and a lower spring (21) is fixedly connected between the side wall of the transverse plate (16) and the bottom end of one of the lower circular frames (14).

7. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 5, characterized by, The length of the short groove (26) is half the length of the long groove (25). The round rod (27) above the long groove (25) is inserted into the long inclined groove (28), and another round rod (27) is inserted into the inside of the short inclined groove (30).

8. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 3, characterized by, The front side of the adjustment block (11) is fixedly connected to a storage frame (31), and a top groove (32) is provided through the rear side of the adjustment block (11) relative to the position inside the storage frame (31).

9. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 1, characterized by, The adjusting block (11) has a connecting groove (33) between its interior and the bottom of the horizontal end of the T-shaped groove (12). The adjusting block (11) has a through hole in the middle of its rear side, and the through hole is connected to the connecting groove (33). An air inlet pipe (34) is fixedly connected to the front side of the through hole, and the air inlet pipe (34) is connected to the air outlet of the external aeration equipment. A rear pipe (35) is fixedly connected to the middle of the rear side of the inner wall of the biofilm reaction tank (3).

10. The high concentration organic wastewater treatment apparatus based on a microorganism technology according to claim 9, characterized by, The top end of the rear pipe (35) is fixedly connected to the rear side of the through hole. The middle part of the bottom end of the biofilm reaction tank (3) is fixedly connected to the middle aeration pipe (36), and the bottom end of the rear pipe (35) and the middle aeration pipe (36) are fixedly connected through the pipe. The middle aeration pipe (36) is equipped with a solenoid valve (39).

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