Tricking filtration type biological membrane reaction tower

Abstract

The invention relates to the technical field of sewage treatment, and discloses a trickling filtration type biofilm reaction tower, which comprises: a moving assembly, the outer wall of which is fixedly provided with a stirring assembly for supporting the whole device; the stirring assembly is fixed to the moving assembly and used for stirring liquid in the device and generating negative pressure at the same time; the circulating assembly is arranged on the moving assembly, is used for filtering the wastewater and is matched with the stirring assembly to enable the filtered wastewater to flow back; the adjusting assembly is fixed in the circulating assembly and used for adjusting the effective area of an air inlet in the device; the feeding assembly is fixed on the circulating assembly and is used for uniformly feeding the wastewater into the device; and the circulating assembly comprises a reaction tank. Through cooperation of the backflow assembly and the stirring assembly, after wastewater is filtered, the wastewater is guided into the backflow assembly again to be filtered again, the overall trickling filtration effect is greatly improved, and trickling filtration is more sufficient.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a trickling filter biofilm reaction tower. Background Art

[0002] With the continuous development of society, the discharge of industrial and domestic sewage has continued to increase, and a large amount of pollutants have been discharged into surface water ecosystems such as rivers and lakes, changing the nutrient structure in the water and causing a large number of deaths of aquatic organisms, which not only causes great harm to the environment, but also causes huge losses to the economy and society. Therefore, sewage treatment is an indispensable part of maintaining social development, and sewage treatment processes are mainly based on physical, chemical and biological principles. Among them, biological treatment technology is mainly dominated by biofilm treatment technology and activated sludge treatment technology. Biofilm treatment technology is mainly represented by biofilm reactors. Compared with traditional physical stripping methods, it is widely used because of its low treatment cost, stable treatment effect, small footprint and no secondary pollution. It has now become the mainstream process for organic industrial wastewater treatment.

[0003] In traditional drip filtration systems, the effluent quality does not meet the standards due to incomplete one-time filtration. At the same time, it is necessary to massively increase the size or complexity of the equipment to improve the treatment effect. The operating cost and maintenance difficulty of the system are high. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a trickling filtration biofilm reaction tower, which solves the problem of substandard effluent quality due to incomplete one-time filtration in traditional trickling filtration systems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a trickling biofilm reaction tower, comprising: a moving component, a stirring component is fixed on the outer wall of which is used to support the entire device; a stirring component is fixed on the moving component, and is used to stir the liquid inside the device and generate negative pressure at the same time; a circulation component is arranged on the moving component, and is used to filter the wastewater, and cooperates with the stirring component to make the filtered wastewater flow back; an adjusting component is fixed on the inside of the circulation component, and is used to adjust the effective area of ​​the air inlet inside the device; a feeding component is fixed on the circulation component, and is used to make the wastewater flow evenly into the inside of the device; the circulation component includes a reaction tank, a guide cover is fixed on the inside of the reaction tank, a plurality of reflux pipes are fixed on the inside of the guide cover, a solenoid valve is arranged on the inside of the reflux pipe, and a suction pipe is fixed on the end of the reflux pipe.

[0006] Preferably, the moving assembly comprises a cart, a fixing plate 1 is fixed to an outer wall of the cart, and a fixing plate 2 is fixed to an outer wall of the cart.

[0007] Preferably, the reaction tank is fixed on the outer wall of the fixed plate 2, a cover plate is slidably connected to the top of the reaction tank, a stuffing box 1 is fixed to the inner wall of the guide cover, a water distributor is fixed to the top of the guide cover, and a plurality of stuffing boxes 2 are fixed to the inner wall of the guide cover for using different types of stuffings.

[0008] Preferably, the stirring assembly includes a motor, an outer wall of the motor is fixed to the outer wall of a fixed plate, a rotating rod is fixed to the driving end of the motor, a bearing is fixed to the outer wall of the rotating rod, the outer wall of the bearing is fixed to the inner wall of the cover plate, a scraper 1 is fixed to the outer wall of the rotating rod, a plurality of scrapers 2 are fixed to the bottom end of the rotating rod, and a stirring blade is fixed to the bottom end of the rotating rod.

[0009] Preferably, the lower surface of the scraper plate 1 is in contact with the upper surface of the stuffing box 1, and the lower surface of the scraper plate 2 is in contact with the upper surface of the stuffing box 2.

[0010] Preferably, the regulating assembly comprises an air inlet pipe, an outer wall of the air inlet pipe is fixed with a connecting sleeve, and the outer wall of the air inlet pipe is fixed to the inner wall of the reaction tank and the air guide cover.

[0011] Preferably, a gear 1 rotates inside the connecting sleeve, a handle is fixed inside the gear 1, a gear ring rotates on the outer wall of the connecting sleeve, the gear ring is meshed with gear 1, a gear 2 rotates on the outer wall of the connecting sleeve, the gear 2 is meshed with the gear ring, and an adjustment plate is fixed on the outer wall of the gear 2.

[0012] Preferably, the feed assembly includes a feed pipe, the outer wall of which is fixed inside the cover plate, a diverter pipe is fixed to the end of the feed pipe, a plurality of connecting pipes are fixed to the bottom end of the diverter pipe, and nozzles are fixed to the ends of the connecting pipes.

[0013] Preferably, a discharge pipe is fixed to the bottom end of the reaction tank, a sedimentation tank is fixed to the bottom end of the discharge pipe, the lower surface of the sedimentation tank is fixed to the upper surface of the cart, a switch valve is provided inside the discharge pipe, and a filter is fixed inside the sedimentation tank.

[0014] Preferably, a water pump is fixed on the upper surface of the cart, a pumping pipe is fixed to the input end of the water pump, a drain pipe is fixed to the output end of the water pump, and the outer wall of the pumping pipe is fixed inside the sedimentation tank and passes through the filter.

[0015] Working principle: When the device needs to be used, first introduce the wastewater into the reaction tower through the feed assembly. After passing through the feed pipe, the wastewater flows through the diversion pipe and is evenly sprayed inside the device through the connecting pipe. The nozzle distributes the wastewater on the surface of the water distributor. The water distributor further evenly distributes the wastewater on the surface of the stuffing box 1 and the stuffing box 2, so that it flows through the stuffing box 1 and the stuffing box 2 in the guide cover, and uses different types of stuffing for preliminary drip filtration treatment. At the same time, start the motor to drive the rotating rod and the stirring blade to rotate inside the sixth stroke to generate negative pressure inside the guide cover. The solenoid valve controls the air in the return pipe, and the wastewater is sucked by the suction pipe for re-filtration. The treated wastewater returns to the inside of the circulation assembly through the return pipe, and the stirring assembly starts to work. The motor drives the rotating rod to rotate, and the rotating rod drives the scraper 1 and the scraper 2 to clean the outer walls of the stuffing box 1 and the stuffing box 2 to prevent biofilm blockage. The plug ensures smooth water flow. At the same time, the stirring blades stir the liquid in the reaction tank, making the wastewater treatment more uniform, and generating negative pressure to further promote the reflux of wastewater. At this time, the regulating component rotates the handle to rotate gear one, gear one rotates the gear ring, and the gear ring rotates gear two and the regulating plate. The regulating plate is used to adjust the effective area of ​​the air inlet pipe. According to the oxygen demand of microorganisms in different filler layers, the air intake of each layer is controlled separately to ensure the refined control of oxygen supply. The treated wastewater is discharged through the discharge pipe and flows into the sedimentation tank for sedimentation. The internal filter screen further filters the suspended matter in the wastewater. Finally, the water pump is started to pump the treated water in the sedimentation tank out through the suction pipe and discharge the system through the drain pipe to achieve efficient wastewater treatment. During the whole process, the components work together to improve the trickling effect, ensure the treated water quality, and reduce maintenance and operation costs.

[0016] The present invention provides a trickling biofilm reaction tower, which has the following beneficial effects:

[0017] 1. The present invention, through the cooperation between the reflux component and the stirring component, filters the wastewater and then re-introduces the wastewater into the interior of the reflux component for re-filtration, which greatly improves the overall effect of the drip filtration, makes the drip filtration more sufficient, and solves the problem of substandard effluent quality due to incomplete one-time filtration in the traditional drip filtration system. At the same time, it avoids the need to increase the volume or complexity of the equipment on a large scale to improve the treatment effect, and reduces the operating cost and maintenance difficulty of the system.

[0018] 2. The present invention improves the effect of dripping filtration by having multiple stuffing boxes inside the reflux component. At the same time, the outer walls of multiple stuffing boxes are cleaned through the cooperation of scraper 1 and scraper 2 of the stirring component to prevent clogging of the biofilm on the surface of the stuffing box, which affects the effect of subsequent dripping filtration. This solves the problem that the surface of the stuffing box is prone to biofilm clogging after long-term operation, resulting in poor water flow and reduced oxygen transmission efficiency, which in turn affects the processing efficiency of the entire system.

[0019] 3. The present invention achieves convenient control of the effective area of ​​multiple air inlet pipes through the coordination between the adjustment component and the adjustment plate. According to the oxygen demand of the microorganisms in each layer, the air intake of each layer is adjusted respectively to achieve refined control, which solves the problems of uneven growth of microbial communities, decreased treatment efficiency in local areas, and hypoxia or excessive oxygen supply in some areas due to uneven air flow distribution in traditional air circulation designs. Through this design, a more reasonable oxygen distribution in the entire system is ensured, thereby optimizing the metabolic efficiency of microorganisms and improving the overall wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the reaction tank of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the air deflector part of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the air deflector of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the air intake pipe part of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the cover plate of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of a sedimentation tank of the present invention;

[0027] Figure 8 It is a schematic diagram of the internal structure of the sedimentation tank of the present invention.

[0028] Among them, 1. Cart; 2. Fixed plate 1; 3. Fixed plate 2; 4. Stirring assembly; 401. Motor; 402. Rotating rod; 403. Bearing; 404. Scraper 1; 405. Scraper 2; 406. Stirring blade; 5. Circulation assembly; 501. Reactor; 502. Cover plate; 503. Flow guide cover; 504. Reflux pipe; 505. Solenoid valve; 506. Suction pipe; 507. Stuffing box 1; 508. Stuffing box 2; 509 , water distributor; 6, adjustment component; 601, air inlet pipe; 602, connecting sleeve; 603, gear one; 604, handle; 605, gear ring; 606, gear two; 607, adjustment plate; 7, discharge pipe; 8, feed component; 801, feed pipe; 802, diverter pipe; 803, connecting pipe; 804, nozzle; 9, sedimentation tank; 10, filter screen; 11, water pump; 12, suction pipe; 13, drain pipe; 14, switch valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification 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.

[0030] Example:

[0031] Please see attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a trickling filter biofilm reaction tower, comprising: a moving component, a stirring component 4 is fixed on the outer wall of which, for supporting the entire device; the stirring component 4 is fixed on the moving component, for stirring the liquid inside the device and generating negative pressure at the same time; a circulation component 5 is arranged on the moving component, for filtering the wastewater, and at the same time cooperates with the stirring component 4 to make the filtered wastewater flow back; an adjustment component 6 is fixed inside the circulation component 5, for adjusting the effective area of ​​the air inlet inside the device; a feeding component 8 is fixed on the circulation component 5, for making the wastewater flow evenly into the inside of the device; the circulation component 5 comprises a reaction tank 501, a guide cover 503 is fixed inside the reaction tank 501, a plurality of reflux pipes 504 are fixed inside the guide cover 503, a solenoid valve 505 is arranged inside the reflux pipe 504, a suction pipe 506 is fixed at the end of the reflux pipe 504, the moving component comprises a cart 1, a fixing plate 2 is fixed on the outer wall of the cart 1, and the cart The outer wall of the reaction tank 501 is fixed with a fixing plate 23, the reaction tank 501 is fixed on the outer wall of the fixing plate 23, the top of the reaction tank 501 is slidably connected with a cover plate 502, the inner wall of the guide cover 503 is fixed with a stuffing box 507, the top of the guide cover 503 is fixed with a water distributor 509, the inner wall of the guide cover 503 is fixed with a plurality of stuffing boxes 2 508 for using different types of stuffing, the stirring assembly 4 includes a motor 401, the outer wall of the motor 401 is fixed to the outer wall of the fixing plate 2, the motor 4 A rotating rod 402 is fixed to the driving end of 01, a bearing 403 is fixed to the outer wall of the rotating rod 402, the outer wall of the bearing 403 is fixed to the inner wall of the cover plate 502, a scraper 404 is fixed to the outer wall of the rotating rod 402, a plurality of scrapers 405 are fixed to the bottom end of the rotating rod 402, a stirring blade 406 is fixed to the bottom end of the rotating rod 402, the lower surface of the scraper 404 is in contact with the upper surface of the stuffing box 507, and the lower surface of the scraper 405 is in contact with the upper surface of the stuffing box 508.

[0032] Specifically, the wastewater is uniformly introduced into the reaction tower through the feed component 8, and the wastewater is sprayed on the surface of the water distributor 509 by the nozzle 804 through the feed pipe 801, the diversion pipe 802 and the connecting pipe 803. The water distributor 509 evenly distributes the wastewater to the surfaces of the stuffing box 1 507 and the stuffing box 2 508, so that the wastewater is fully treated by preliminary drip filtration on different types of fillers. At the same time, the motor 401 drives the rotating rod 402 and the stirring blade 406 to generate negative pressure inside the guide cover 503, combined with the precise control of the air in the return pipe 504 by the solenoid valve 505, and the treated wastewater is returned to the circulation component 5 by the suction pipe 506 for recycling and reprocessing, thereby ensuring the effect of multiple filtration of the wastewater and avoiding one-time filtration. The water quality problem of the effluent caused by incompleteness is solved, and the motor 401 drives the rotation of the rotating rod 402, and the scraper 1 404 and the scraper 2 405 continuously clean the outer walls of the stuffing box 1 507 and the stuffing box 2 508 to prevent the water flow blockage caused by the biofilm clogging, thereby ensuring the smoothness of the water flow and the continuity of the treatment process. At the same time, the stirring blade 406 evenly stirs the wastewater inside the reaction tank 501, further improving the uniformity of liquid treatment, and accelerates the return of wastewater to the system for multiple circulation treatment through the negative pressure generated, which ultimately greatly improves the overall treatment effect of the trickling filter reactor, ensures the system's operating efficiency and wastewater treatment quality, and at the same time reduces the frequency and complexity of system maintenance, thereby reducing the overall operating cost.

[0033] Please see attached Figure 5 -Attached Figure 6 The adjusting component 6 includes an air inlet pipe 601, a connecting sleeve 602 is fixed to the outer wall of the air inlet pipe 601, and the outer wall of the air inlet pipe 601 is fixed to the inner wall of the reaction tank 501 and the guide cover 503. A gear 1 603 is rotated inside the connecting sleeve 602, and a handle 604 is fixed inside the gear 1 603. A gear ring 605 is rotated on the outer wall of the connecting sleeve 602, and the gear ring 605 is meshed with the gear 1 603. A gear 2 606 is rotated on the outer wall of the connecting sleeve 602, and the gear 2 606 is meshed with the gear ring 605. An adjusting plate 607 is fixed to the outer wall of the gear 2 606. The feeding component 8 includes a feeding pipe 801, and the outer wall of the feeding pipe 801 is fixed to the inside of the cover plate 502. A diverter pipe 802 is fixed to the end of the feeding pipe 801, and a plurality of connecting pipes 803 are fixed to the bottom end of the diverter pipe 802, and nozzles 804 are fixed to the ends of the connecting pipes 803.

[0034] Specifically, through the design of the adjustment component 6, the gear 1 603 can be driven to rotate by turning the handle 604, and the gear 1 603 further drives the gear ring 605 to rotate. The gear ring 605 drives the gear 2 606 and the adjustment plate 607 to operate together, so that the adjustment plate 607 can flexibly adjust the effective area of ​​the air inlet pipe 601, accurately control the air flow entering each layer of filler, and ensure that each layer of microorganisms obtains appropriate oxygen supply according to the actual oxygen demand, thereby realizing the refined management of oxygen supply, avoiding the problem of unbalanced microbial growth and reduced treatment efficiency caused by uneven oxygen distribution in the traditional system. At the same time, through this refined airflow control, the metabolic efficiency of microorganisms is optimized, and the effect of wastewater treatment is improved. After the treated wastewater is discharged through the discharge pipe 7, it flows into the sedimentation tank 9 for solid-liquid separation. The filter screen 10 inside the sedimentation tank 9 is used to further filter the wastewater to ensure that the effluent quality meets the expected standard. The design of the filter screen 10 effectively blocks the outflow of suspended particles, ensures the stable operation of the entire system, and reduces the burden of subsequent processing units, thereby further improving the operation efficiency and reliability of the system.

[0035] Please see attached Figure 7 -Attached Figure 8 A discharge pipe 7 is fixed to the bottom end of the reaction tank 501, a sedimentation tank 9 is fixed to the bottom end of the discharge pipe 7, the lower surface of the sedimentation tank 9 is fixed to the upper surface of the cart 1, a switch valve 14 is arranged inside the discharge pipe 7, a filter screen 10 is fixed inside the sedimentation tank 9, a water pump 11 is fixed to the upper surface of the cart 1, a pumping pipe 12 is fixed to the input end of the water pump 11, a drain pipe 13 is fixed to the output end of the water pump 11, and the outer wall of the pumping pipe 12 is fixed to the inside of the sedimentation tank 9 and passes through the filter screen 10.

[0036] Specifically, the filter screen 10 is used to perform secondary filtration on the wastewater in the sedimentation tank 9 to effectively remove the suspended matter in the wastewater and ensure the cleanliness of the effluent. Subsequently, by starting the water pump 11, the treated water in the sedimentation tank 9 is pumped out by the pumping pipe 12, and the treated wastewater is smoothly discharged from the system through the drain pipe 13, thereby realizing efficient treatment of the wastewater. In the whole process, the precise coordination between the components plays a key role. From water inlet, preliminary trickling filtration, reflux reprocessing to the final effluent discharge, the optimized design of each link ensures that the system operates efficiently while ensuring the stability of the effluent water quality, especially the fine control of the oxygen supply by the regulating component 6, combined with the cleaning of the filler surface by the stirring component 4, so that the microbial membrane can maintain activity for a long time and avoid clogging, further improving the effect of trickling filtration. This multi-level and multi-step wastewater treatment method not only significantly improves the treatment efficiency and effluent water quality of the system, but also effectively reduces the operating cost caused by equipment failure or frequent maintenance. Through such a design, the present invention realizes the comprehensive improvement of the performance, economy and reliability of the wastewater treatment system, and provides a more efficient and economical solution for complex wastewater treatment needs.

[0037] 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 trickling biofilm reactor, characterized in that: include: A moving component, the outer wall of which is fixed with a stirring component (4) for supporting the entire device; A stirring assembly (4) is fixed on the moving assembly and is used to stir the liquid inside the device and generate negative pressure at the same time; a circulation assembly (5) is arranged on the moving assembly and is used to filter the wastewater and cooperate with the stirring assembly (4) to make the filtered wastewater flow back; an adjustment assembly (6) is fixed inside the circulation assembly (5) and is used to adjust the effective area of ​​the air inlet inside the device; a feeding assembly (8) is fixed on the circulation assembly (5) and is used to make the wastewater flow evenly into the inside of the device; the circulation assembly (5) comprises a reaction tank (501), a flow guide cover (503) is fixed inside the reaction tank (501), a plurality of return pipes (504) are fixed inside the flow guide cover (503), a solenoid valve (505) is arranged inside the return pipe (504), and a suction pipe (506) is fixed at the end of the return pipe (504).

2. A trickling biofilm reaction tower according to claim 1, characterized in that: The mobile assembly comprises a trolley (1), a fixing plate 1 (2) is fixed to the outer wall of the trolley (1), and a fixing plate 2 (3) is fixed to the outer wall of the trolley (1).

3. A trickling biofilm reaction tower according to claim 1, characterized in that: The reaction tank (501) is fixed on the outer wall of the fixing plate 2 (3); the top of the reaction tank (501) is slidably connected with a cover plate (502); the inner wall of the guide cover (503) is fixed with a stuffing box 1 (507); the top of the guide cover (503) is fixed with a water distributor (509); the inner wall of the guide cover (503) is fixed with multiple stuffing boxes 2 (508) for using different types of stuffing.

4. A trickling biofilm reaction tower according to claim 1, characterized in that: The stirring assembly (4) comprises a motor (401), the outer wall of the motor (401) is fixed to the outer wall of the fixing plate 1 (2), a rotating rod (402) is fixed to the driving end of the motor (401), a bearing (403) is fixed to the outer wall of the rotating rod (402), the outer wall of the bearing (403) is fixed to the inner wall of the cover plate (502), a scraper 1 (404) is fixed to the outer wall of the rotating rod (402), a plurality of scrapers 2 (405) are fixed to the bottom end of the rotating rod (402), and a stirring blade (406) is fixed to the bottom end of the rotating rod (402).

5. A trickling biofilm reaction tower according to claim 4, characterized in that: The lower surface of the scraper 1 (404) is in contact with the upper surface of the stuffing box 1 (507), and the lower surface of the scraper 2 (405) is in contact with the upper surface of the stuffing box 2 (508).

6. A trickling biofilm reaction tower according to claim 1, characterized in that: The regulating component (6) comprises an air inlet pipe (601), the outer wall of which is fixed with a connecting sleeve (602), and the outer wall of the air inlet pipe (601) is fixed to the inner wall of the reaction tank (501) and the air guide cover (503).

7. A trickling biofilm reaction tower according to claim 6, characterized in that: A gear 1 (603) is rotatably mounted inside the connecting sleeve (602), a handle (604) is fixed inside the gear 1 (603), a gear ring (605) is rotatably mounted on the outer wall of the connecting sleeve (602), the gear ring (605) and the gear 1 (603) are meshed with each other, a gear 2 (606) is rotatably mounted on the outer wall of the connecting sleeve (602), the gear 2 (606) and the gear ring (605) are meshed with each other, and an adjustment plate (607) is fixed to the outer wall of the gear 2 (606).

8. A trickling biofilm reaction tower according to claim 1, characterized in that: The feed assembly (8) comprises a feed pipe (801), the outer wall of which is fixed inside the cover plate (502), a diversion pipe (802) is fixed at the end of the feed pipe (801), a plurality of connecting pipes (803) are fixed at the bottom end of the diversion pipe (802), and nozzles (804) are fixed at the ends of the connecting pipes (803).

9. A trickling biofilm reaction tower according to claim 3, characterized in that: A discharge pipe (7) is fixed to the bottom end of the reaction tank (501), a sedimentation tank (9) is fixed to the bottom end of the discharge pipe (7), the lower surface of the sedimentation tank (9) is fixed to the upper surface of the cart (1), a switch valve (14) is provided inside the discharge pipe (7), and a filter screen (10) is fixed inside the sedimentation tank (9).

10. A trickling biofilm reaction tower according to claim 2, characterized in that: A water pump (11) is fixed on the upper surface of the cart (1), a water pump (12) is fixed to the input end of the water pump (11), a drainage pipe (13) is fixed to the output end of the water pump (11), and the outer wall of the water pump (12) is fixed inside the sedimentation tank (9) and passes through the filter (10).

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