A biofilm-ecological bed combined treatment device for black and odorous water and a method of using the device

Abstract

The invention discloses a biofilm-ecological bed combined black and odorous water body treatment device and a use method, which belongs to the field of sewage treatment, comprises a container, a floating bed support plate fixedly connected to the inner wall of the container, a floating bed body clamped in the floating bed support plate, and a plurality of aeration pipes fixedly connected inside the container, and also comprises a plurality of biological filler parts located inside the container and below the floating bed body, and the two ends of the biological filler parts are respectively connected to the lower end of the floating bed body and the inner wall of the container; the biological filler parts comprise a plurality of hollow carrier frames, a hollow connecting part integrally formed at the upper and lower ends of the hollow carrier frames, and a hollow tube rotatably connected to the plurality of hollow carrier frames and the hollow connecting part; the design of the rotation of the biofilm carrier in the hollow carrier frame is adopted, and the rotation of the biofilm carrier can prevent the local accumulation of suspended matter and biofilm on the carrier surface, reduce the possibility of carrier blockage, and ensure the stable operation of the system.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and more specifically to a biofilm-ecological bed combined treatment device for black and odorous water bodies and a use method thereof. Background Art

[0002] Biofilm-ecological bed combined treatment technology is a biological ecological combined purification technology based on ecological floating bed. It is a biological filler that is conducive to the attachment and growth of microorganisms under the ecological floating bed to enhance the purification effect of microorganisms. It is also commonly called a three-dimensional ecological floating bed or a composite ecological floating bed. Compared with a simple ecological floating bed, this technology expands the action space of microorganisms and thus often has a better water purification effect.

[0003] In the prior art, the combined water treatment technology of biofilm and ecological bed is relatively mature. For example, the prior art (Chinese invention patent application with publication number CN110104780A) discloses a modular biofilm-ecological floating bed combination purification system. This technology improves the size, matrix ratio and dosage of the biological filler module. Although it can achieve good purification effect and ecological landscape, the biological filler will be blocked during use. The biofilm is formed by a microbial community on the filler surface. The biofilm formed on the biological filler will continuously adsorb organic matter in the water. As the microorganisms reproduce, the thickness of the biofilm will gradually increase. If the biofilm is too thick, the microbial metabolites and accumulated waste are not removed in time, which may cause the surface or pores of the filler to be blocked, resulting in poor water flow, affecting the contact and material exchange between the water body and the biofilm. The blockage will also limit the transfer of dissolved oxygen, thereby affecting the degradation efficiency of microorganisms. The thick biofilm will lead to poor gas exchange, thereby affecting the purification effect of the system. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A biofilm-ecological bed combined black and odorous water treatment device comprises a container, a floating bed support plate fixed to the inner wall of the container, a floating bed body clamped in the floating bed support plate, and a plurality of aeration pipes fixed inside the container.

[0007] It also includes a plurality of biological filler parts located inside the container and below the floating bed body, and two ends of the biological filler parts are respectively connected to the lower end of the floating bed body and the inner wall of the container;

[0008] The biological filler part includes a plurality of hollow carrier frames, hollow connecting parts integrally formed at the upper and lower ends of the hollow carrier frames, hollow tubes rotatably connected to the plurality of hollow carrier frames and the hollow connecting parts, and a plurality of biofilm carriers fixed to the outer wall of the hollow tube and respectively located in the plurality of hollow carrier frames, wherein the plurality of hollow carrier frames are connected via two adjacent hollow connecting parts and connected in series to form a whole;

[0009] The container is also internally connected with a rotating part which is connected with the hollow tube and drives the biofilm carrier to rotate in the hollow carrier frame to stir the water flow and prevent the biofilm from being blocked.

[0010] Furthermore, the rotating part includes a rotating joint fixed to the lower end of the container, and a driving assembly located inside the container and connected to the rotating joint for driving the inner tube of the rotating joint to rotate. The inner tube of the rotating joint passes through the container and is inserted into the hollow tube.

[0011] Furthermore, the driving assembly includes a plurality of sprockets 1 rotatably connected inside the container and respectively fixed to the outer walls of the inner tubes of a plurality of rotating joints, a sprocket 2 rotatably connected inside the container, a chain belt connecting the plurality of sprockets 1 with the sprocket 2, and a motor 1 fixed to the outer wall of one side of the container, and the output shaft of the motor 1 extends into the container and is fixed to the sprocket 2.

[0012] Furthermore, a plurality of aeration holes are provided inside the hollow tube, and a carrier clearing assembly is also connected to the inside of the container, and the carrier clearing assembly includes a plurality of guide plates fixedly connected to the inner wall of the container, a plurality of movable grooves 1 provided on the inner bottom wall of the container, a plurality of vertical plates movably inserted into the plurality of movable grooves 1, a movable groove 2 provided inside the vertical plates, a plurality of nozzles connected to the inner wall of the movable groove 2, a plurality of valve bodies respectively connected to the input ends of the plurality of nozzles, and a plurality of pipe bodies respectively connected to the plurality of vertical plates and connected to the input ends of the plurality of valve bodies.

[0013] Furthermore, a plurality of pipe interfaces are provided at the lower end of the container, and a plurality of pipe joints respectively connected to the plurality of pipe interfaces are provided inside the container, one end of the plurality of pipe bodies are respectively connected to the plurality of pipe joints, and the other ends of the plurality of vertical plates are movably inserted inside the plurality of guide plates.

[0014] Furthermore, the plurality of nozzles are rotatably connected to the inner wall of the movable groove II, and the vertical plate is rotatably connected to a plurality of gears, the plurality of gears are respectively fixedly connected to one side of the plurality of nozzles, the plurality of vertical plates are movably inserted with racks meshing with the plurality of gears, and the lower ends of the racks are fixedly connected to the inner wall of the movable groove II, the plurality of vertical plates are screwed with screw rods, and the lower ends of the screw rods are rotatably connected to the inner wall of the movable groove II, the lower end of the container is fixedly connected to a plurality of motors II, and the output shafts of the plurality of motors II pass through the container and are respectively fixedly connected to the plurality of screw rods.

[0015] Furthermore, a conducting part is fixedly connected to the inner bottom wall of the container, and a mounting groove for accommodating the hollow connecting part is opened inside the conducting part, an ultrasonic generating part is fixedly connected to the lower end of the container, an ultrasonic transducer part is fixedly connected to the conducting part, and the ultrasonic transducer part is connected to the ultrasonic generating part.

[0016] Furthermore, a water inlet is provided on one side of the container, and a drain outlet 1 and a drain outlet 2 are provided on the other side of the container, and a sluice for controlling the drainage flow of the drain outlet 2 is connected inside the container.

[0017] Furthermore, a reflux defloating part is connected to one side of the container, and the reflux defloating part includes a box body and a circulation pump fixedly connected to one side of the container, and a filter plate clamped on the inner wall of the box body. The input end of the circulation pump is connected to the inner cavity of the box body, and the input end of the circulation pump is connected to the inner cavity of the container.

[0018] A method for using a biofilm-ecological bed combined treatment device for black and odorous water bodies, comprising the following steps:

[0019] S1. The water to be treated enters the container from the water inlet. The biofilm on the biofilm carrier in the container adsorbs and degrades organic matter in the water. Aquatic plants are arranged on the floating bed body to treat pollutants in the water by the synergistic effect of plant roots and soil.

[0020] S2, controlling the motor 1 to work and drive the sprocket 2 to rotate, the sprocket 2 drives the other multiple sprockets 1 and the inner tube of the rotary joint to rotate through the chain belt, the inner tube of the rotary joint drives the hollow tube and the biofilm carrier to rotate in the hollow connecting part and the hollow carrier frame, the biofilm carrier continuously rotates in the water body to break the boundary layer on the surface of the biofilm, and prevents the local accumulation of suspended matter and biofilm on the surface of the carrier;

[0021] S3, connecting the rotary joint and the pipe interface to the air supply pipe, the gas enters the hollow tube through the rotary joint and is discharged from the aeration hole, exhausts from the inside of the biofilm carrier to the outside to clean the blockage of the biofilm carrier, the gas enters the pipe body through the pipe interface, and is discharged from the nozzle, flushes the outside of the biofilm carrier to clean the blockage of the biofilm carrier;

[0022] S4, control the second motor to work and drive the screw to rotate, the screw rotation drives the vertical plate to move up and down, when the vertical plate moves upward, the nozzle moves upward, and the rack drives the gear and the nozzle to rotate clockwise, when the vertical plate moves downward, the nozzle moves downward, and the rack drives the gear and the nozzle to rotate counterclockwise, so as to realize multi-angle jet cleaning of the biofilm carrier;

[0023] S5, controls the ultrasonic generating part to work and sends a signal to the ultrasonic transducer part, which generates vibration and transmits it to the hollow connecting part and the hollow carrier frame through the conducting part, thereby realizing ultrasonic anti-blocking cleaning of the biofilm carrier, and can be used in conjunction with the gas cleaning in S3 to achieve better anti-blocking treatment.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) This scheme adopts a design in which the biofilm carrier rotates on a hollow carrier frame. The rotation of the biofilm carrier can prevent the local accumulation of suspended matter and biofilm on the carrier surface, reduce the possibility of carrier clogging, and ensure the stable operation of the system. The excessively thick biofilm and adhering suspended matter attached to the biofilm carrier can be washed away by the water flow during the rotation process, inhibiting the excessive thickening of the biofilm and maintaining the outer membrane structure with high microbial activity. The dynamic rotation allows the surface of the biofilm carrier to evenly contact the water flow and oxygen, avoiding local excessive growth of biofilm or inorganic deposition. The biofilm carrier continuously rotates in the water body, which can effectively break the boundary layer on the surface of the biofilm, making it easier for pollutants, dissolved oxygen and other substances in the water body to diffuse to the surface of the biofilm and be ingested and decomposed by microorganisms, thereby improving the mass transfer efficiency and enhancing the ability to remove pollutants in the water body.

[0026] (2) This scheme is provided with a carrier clearing component. The water flow or air flow discharged from the aeration holes can enhance the convective exchange of the fluid inside and outside the biofilm carrier, flush the carrier pores from the inside to the outside, remove the biofilm fragments, suspended matter and inorganic sediments accumulated inside, and prevent the pores from being blocked. At the same time, the discharge of air or water flow can promote the material transfer inside the carrier, break the stagnant layer that may exist inside the biofilm, and make the microorganisms inside the biofilm more fully contact and exchange with the pollutants, dissolved oxygen and nutrients in the water body outside the carrier, thereby improving the mass transfer efficiency inside the biofilm, providing more favorable conditions for the metabolic activities of the microorganisms, helping to maintain a stable oxygen or nutrient distribution, and improving the metabolic efficiency of the microorganisms; the water flow or air flow sprayed from the nozzle can directly flush the outside of the biofilm carrier, remove the attached aged biofilm and suspended matter, further reduce the risk of blockage, and help stir the liquid in the container, further destroy the boundary layer on the surface of the biofilm, accelerate the material exchange between the surface of the carrier and the surrounding water body, make the reactants and microorganisms better contact, and promote the growth and activity of the biofilm.

[0027] (3) This solution is equipped with a rack and a gear. When the motor 2 drives the vertical plate to rise or fall, the rack can drive the gear and the nozzle to rotate clockwise or counterclockwise. By adjusting the angle of the nozzle, it is ensured that each area outside the biofilm carrier can receive sufficient cleaning and fluid flushing, avoiding local over-flushing or certain areas that are not cleaned and still have blockages. The dynamic adjustment of the nozzle can reduce the wear of the carrier caused by local blockage or excessive flushing, thereby extending the service life of the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a drain outlet of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the aeration pipe, the guide plate and the conduction part of the present invention;

[0031] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 5 It is a structural schematic diagram of the rotary joint, motor 2, pipeline interface and ultrasonic generating part of the present invention;

[0033] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0034] Figure 7 It is a schematic diagram of the structure of the biological filler part of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the aeration hole and the sprocket of the present invention;

[0036] Fig. 9 It is a schematic diagram of the bottom structure of the hollow tube of the present invention;

[0037] Fig.10 It is a schematic diagram of the sprocket wheel 2 and the chain belt structure of the present invention;

[0038] Fig.11 For the present invention Fig.10 A magnified schematic diagram of the structure at C in the middle;

[0039] Fig.12 It is a schematic diagram of the structure of the carrier blockage clearing assembly of the present invention;

[0040] Fig.13 For the present invention Fig.12 A magnified schematic diagram of the structure at D in the middle;

[0041] Fig.14 For the present invention Fig.12 The enlarged schematic diagram of the structure at E in the middle;

[0042] Fig.15 It is a schematic diagram of the rack, gear and tube structure of the present invention;

[0043] Fig.16 For the present invention Fig.15 Enlarged schematic diagram of the structure at F in the middle

[0044] Fig.17 It is a schematic diagram of the structure of the reflux defloating part of the present invention.

[0045] Description of the numbers in the figure:

[0046] 1. Container; 11. Water inlet; 12. Drainage outlet 1; 13. Drainage outlet 2; 14. Water gate; 2. Floating bed support plate; 3. Floating bed body; 4. Aeration pipe; 5. Biological filler; 51. Hollow connection; 52. Hollow carrier frame; 53. Biofilm carrier; 54. Hollow pipe; 55. Aeration hole; 56. Rotating part; 561. Rotating joint; 562. Sprocket 1; 563. Motor 1; 564. Sprocket 2; 565. Chain belt ; 6. Carrier clearing assembly; 61. Guide plate; 62. Movable groove one; 63. Screw rod; 64. Pipe joint; 641. Pipe interface; 65. Motor two; 66. Vertical plate; 661. Movable groove two; 662. Pipe body; 67. Nozzle; 671. Valve body; 68. Rack; 69. Gear; 7. Transmission part; 71. Mounting groove; 8. Ultrasonic generating part; 9. Reflux defloating part; 91. Box body; 92. Filter plate; 93. Circulation pump. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 17 A biofilm-ecological bed combined black and odorous water treatment equipment includes a container 1, a floating bed support plate 2 fixedly connected to the inner wall of the container 1, a floating bed body 3 clamped in the floating bed support plate 2, and a plurality of aeration pipes 4 fixedly connected to the inside of the container 1. A water inlet 11 is provided on one side of the container 1, and a drain outlet 12 and a drain outlet 2 13 are provided on the other side of the container 1. A sluice 14 for controlling the drainage flow of the drain outlet 2 13 is connected inside the container 1.

[0049] It also includes a plurality of biological filler parts 5 located inside the container 1 and below the floating bed body 3, and the two ends of the biological filler parts 5 are respectively connected to the lower end of the floating bed body 3 and the inner wall of the container 1;

[0050] The biological filler part 5 includes a plurality of hollow carrier frames 52, hollow connecting parts 51 integrally formed at the upper and lower ends of the hollow carrier frames 52, hollow tubes 54 rotatably connected to the plurality of hollow carrier frames 52 and the hollow connecting parts 51, and a plurality of biofilm carriers 53 fixed to the outer wall of the hollow tubes 54 and respectively located in the plurality of hollow carrier frames 52. The plurality of hollow carrier frames 52 are connected in series through two adjacent hollow connecting parts 51 to form a whole.

[0051] The container 1 is also connected to a rotating part 56 which is connected to the hollow tube 54 and drives the biofilm carrier 53 to rotate in the hollow carrier frame 52 to stir the water flow and prevent the biofilm from clogging.

[0052] The rotating part 56 includes a rotating joint 561 fixedly connected to the lower end of the container 1, and a driving component located inside the container 1 and connected to the rotating joint 561 for driving the inner tube of the rotating joint 561 to rotate. The inner tube of the rotating joint 561 passes through the container 1 and is inserted into the hollow tube 54.

[0053] The driving assembly includes a plurality of sprocket wheels 562 rotatably connected to the inside of the container 1 and respectively fixed to the outer walls of the inner tubes of a plurality of rotating joints 561, a sprocket wheel 564 rotatably connected to the inside of the container 1, a chain belt 565 connecting the plurality of sprocket wheels 562 with the sprocket wheel 564, and a motor 563 fixed to the outer wall of one side of the container 1, wherein the output shaft of the motor 563 extends into the container 1 and is fixed to the sprocket wheel 564.

[0054] By adopting the above technical scheme, the black and odorous water to be treated enters the container 1 from the water inlet 11, and the biofilm carrier 53 inside the container 1 (the biofilm carrier 53 is the basis for microorganism attachment, and commonly there are elastic three-dimensional fillers, honeycomb fillers, etc. In this application, the biofilm carrier 53 adopts a spherical carrier with pores formed by injection molding of polypropylene material) is attached with a biofilm. The biofilm is a layer of membrane-like biological community with a specific structure and function formed by a microbial community attached to the surface of a solid medium. In the treatment of black and odorous water bodies, the microorganisms in the biofilm can decompose organic pollutants in the water body into harmless substances such as carbon dioxide and water through adsorption, absorption and metabolism, and can also remove nutrients such as nitrogen and phosphorus. At the same time, the floating bed body 3 can also play a certain role in treating the water body. The floating bed body 3 is usually composed of fillers of different particle sizes (such as gravel, sand, ceramsite, etc.) and plants. On the one hand, the filler provides a place for microorganisms to attach and grow, increasing the number and type of microorganisms; on the other hand, plants absorb nutrients in the water body through their roots, and the secretions of the roots can promote the growth and metabolism of microorganisms. In addition, the ecological bed also has physical functions such as filtration and sedimentation, which can remove impurities such as suspended particles in the water body. The combination of biofilm and ecological bed is used to repair water pollution, improve water quality, and solve the problem of black and smelly water. The water treated by biofilm and ecological bed is discharged through drain outlet 12; in this process, the control motor 563 can drive sprocket 2 564 to rotate, and the rotation of sprocket 2 564 drives multiple sprockets 1 562 and multiple inner tubes of rotating joints 561 to rotate through chain belt 565. When the inner tubes of multiple rotating joints 561 rotate, they drive multiple hollow tubes 54 and multiple biofilm carriers 53 to rotate in the hollow carrier frame 52 and the hollow connecting part 51. The rotation of biofilm carrier 53 stirs the water flow to prevent suspended particles. The local accumulation of floating objects and biofilms on the surface of the carrier reduces the possibility of carrier blockage and ensures the stable operation of the system. The thicker biofilm and adhering suspended objects attached to the biofilm carrier 53 can be washed away by the water flow during the rotation process, which inhibits excessive thickening of the biofilm and maintains the outer membrane structure with high microbial activity. The dynamic rotation allows the surface of the biofilm carrier 53 to be evenly exposed to the water flow and oxygen, avoiding excessive growth of local biofilm or deposition of inorganic matter. The biofilm carrier 53 rotates continuously in the water body, which can effectively break the boundary layer on the surface of the biofilm, making it easier for pollutants, dissolved oxygen and other substances in the water body to diffuse to the surface of the biofilm and be ingested and decomposed by microorganisms, thereby improving the mass transfer efficiency and thereby enhancing the ability to remove pollutants in the water body.

[0055] like Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 12-16As shown, a plurality of aeration holes 55 are provided inside the hollow tube 54, and a carrier clearing assembly 6 is also connected to the inside of the container 1, and the carrier clearing assembly 6 includes a plurality of guide plates 61 fixedly connected to the inner wall of the container 1, a plurality of movable grooves 1 62 provided on the inner bottom wall of the container 1, a plurality of vertical plates 66 respectively movably inserted into the plurality of movable grooves 1 62, a movable groove 2 661 provided inside the vertical plate 66, a plurality of nozzles 67 connected to the inner wall of the movable groove 2 661, a plurality of valve bodies 671 respectively connected to the input ends of the plurality of nozzles 67, and a plurality of tube bodies 662 respectively connected to the plurality of vertical plates 66 and connected to the input ends of the plurality of valve bodies 671.

[0056] A plurality of pipe interfaces 641 are provided at the lower end of the container 1, and a plurality of pipe joints 64 respectively connected to the plurality of pipe interfaces 641 are provided inside the container 1, one end of the plurality of tube bodies 662 are respectively connected to the plurality of pipe joints 64, and the other ends of the plurality of vertical plates 66 are movably inserted into the interior of the plurality of guide plates 61.

[0057] By adopting the above technical solution, the pipe interface 641 and the rotary joint 561 are both connected to the external pipe, and the other end of the pipe is connected to the pump body. Gas, liquid or gas mixture can be pumped from the pipe into the pipe interface 641 and the rotary joint 561 through the pump body. The gas, liquid or gas mixture pumped into the rotary joint 561 can enter the hollow tube 54 and be discharged from the aeration hole 55. The water flow or air flow discharged outward from the aeration hole 55 can enhance the convection exchange of the fluid inside and outside the biofilm carrier 53, flush the carrier pores from the inside to the outside, remove the biofilm fragments, suspended matter and inorganic sediments accumulated inside, and prevent the pores from being blocked. At the same time, the discharge of air flow or water flow can promote the material transfer inside the carrier, break the stagnant layer that may exist inside the biofilm, and make the microorganisms inside the biofilm and the pollutants, dissolved oxygen and nutrients in the water body outside the carrier more fully. The gas, liquid or gas mixture pumped into the pipe interface 641 can enter the pipe body 662 through the pipe joint 64. When the valve body 671 on the nozzle 67 is opened, the gas, liquid or gas mixture in the pipe body 662 can be discharged from the nozzle 67. The water flow or air flow sprayed from the nozzle 67 can directly flush the outside of the biofilm carrier 53 to remove the attached aged biofilm and suspended matter, further reducing the risk of blockage. It can also help stir the liquid in the container 1, further destroy the boundary layer on the surface of the biofilm, accelerate the material exchange between the carrier surface and the surrounding water, make the reactants and microorganisms better contact, and promote the growth and activity of the biofilm.

[0058] like Figure 4 , Figure 5 , Figure 6 , Figure 12-16 As shown, the plurality of nozzles 67 are rotatably connected to the inner wall of the movable groove 2 661, and the vertical plate 66 is internally rotatably connected with a plurality of gears 69, and the plurality of gears 69 are respectively fixedly connected to one side of the plurality of nozzles 67, and the plurality of vertical plates 66 are internally movably inserted with racks 68 meshing with the plurality of gears 69, and the lower ends of the racks 68 are fixedly connected to the inner wall of the movable groove 2 661, and the plurality of vertical plates 66 are internally screwed with screw rods 63, and the lower ends of the screw rods 63 are rotatably connected to the inner wall of the movable groove 2 661, and the lower ends of the screw rods 63 are fixedly connected to the inner wall of the movable groove 2 661, and the plurality of motors 2 65 are fixedly connected to the lower end of the container 1, and the output shafts of the plurality of motors 2 65 pass through the container 1 and are respectively fixedly connected to the plurality of screw rods 63.

[0059] By adopting the above technical solution, the motor 2 65 can drive the screw rod 63 to rotate, and the rotation of the screw rod 63 can drive the vertical plate 66 to move up and down. When the vertical plate 66 moves upward, it drives the nozzle 67 to move upward, and the rack 68 drives the gear 69 and the nozzle 67 to rotate clockwise. When the vertical plate 66 moves downward, it drives the nozzle 67 to move downward, and the rack 68 drives the gear 69 and the nozzle 67 to rotate counterclockwise. By adjusting the angle of the nozzle 67, it is ensured that each area outside the biofilm carrier 53 can be sufficiently cleaned and flushed with fluid to avoid local over-flushing or blockage in some areas that have not been cleaned. The dynamic adjustment of the nozzle 67 can reduce the wear of the carrier due to local blockage or excessive flushing, thereby extending the service life of the carrier.

[0060] like Figure 3-Figure 5 As shown, a conducting part 7 is fixedly connected to the inner bottom wall of the container 1, and a mounting groove 71 for accommodating the hollow connecting part 51 is opened inside the conducting part 7, an ultrasonic generating part 8 is fixedly connected to the lower end of the container 1, an ultrasonic transducer part is fixedly connected to the conducting part 7, and the ultrasonic transducer part is connected to the ultrasonic generating part 8.

[0061] By adopting the above technical solution, the ultrasonic generator 8 is controlled to work and send a signal to the ultrasonic transducer, the ultrasonic transducer generates vibration and transmits it to the hollow connecting part 51, the hollow carrier frame 52, the hollow tube 54 and the biofilm carrier 53 through the conducting part 7 (the material capable of transmitting ultrasonic waves belongs to the mature existing technology and will not be repeated here), and the ultrasonic cleaning can generate strong tiny bubbles (cavitation effect), which release a lot of energy in the process of formation and collapse, and can effectively destroy the dirt on the surface and pores of the biofilm, especially for the tightly attached dirt and tiny particles, it has a strong removal ability. This effect of ultrasonic waves can make the biofilm surface cleaner, thereby reducing the risk of blockage. Ultrasonic waves combined with airflow or water jets can achieve a synergistic cleaning effect. Ultrasonic vibration helps to break the adhesion between dirt and the carrier surface, while airflow or water flow takes away these loose dirt to avoid attaching them back to the biofilm. The combination of the two can greatly improve the cleaning efficiency and achieve efficient anti-blocking cleaning treatment of the biofilm carrier 53 in a shorter time.

[0062] like Fig.17 As shown, a reflux defloating part 9 is connected to one side of the container 1, and the reflux defloating part 9 includes a box body 91 and a circulation pump 93 fixedly connected to one side of the container 1, and a filter plate 92 clamped on the inner wall of the box body 91, and the input end of the circulation pump 93 is connected to the inner cavity of the box body 91, and the input end of the circulation pump 93 is connected to the inner cavity of the container 1.

[0063] By adopting the above technical solution, the aeration pipe 4 in the container 1 aerates the water body, providing sufficient oxygen to promote the metabolism of aerobic microorganisms in the biofilm, and at the same time can drive the impurities that fall off the biofilm carrier 53 to float to the liquid surface. When the sluice gate 14 is opened, the water on the liquid surface can be discharged from the drain port 13 and enter the box 91, and the impurities in the water body are filtered through the filter plate 92. The circulation pump 93 pumps the water that passes through the filter plate 92 into the container 1 again, so as to prevent the impurities that fall off the biofilm carrier 53 from causing the biofilm carrier 53 to be blocked again in the water body.

[0064] Method of use: the water to be treated enters the container 1 from the water inlet 11, the biofilm on the biofilm carrier 53 in the container 1 absorbs and degrades organic matter in the water, aquatic plants are arranged on the floating bed body 3, and the pollutants in the water are treated by the synergistic effect of plant roots and soil; the motor 1 563 is controlled to work and drive the sprocket 2 564 to rotate, the sprocket 2 564 drives the remaining multiple sprockets 1 562 and the inner tube of the rotary joint 561 to rotate through the chain belt 565, the inner tube of the rotary joint 561 drives the hollow tube 54 and the biofilm carrier 53 to rotate in the hollow connecting part 51 and the hollow carrier frame 52, the biofilm carrier 53 continuously rotates in the water to break the boundary layer on the surface of the biofilm, and prevent the local accumulation of suspended matter and biofilm on the surface of the carrier; the rotary joint 561 and the pipeline interface 641 are connected to the air supply pipe, the gas enters the hollow tube 54 through the rotary joint 561 and is discharged from the aeration hole 55, and the air from the biofilm carrier 5 3. The internal exhaust is exhausted to the outside to realize the cleaning of the blockage of the biofilm carrier 53. The gas enters the pipe body 662 through the pipeline interface 641 and is discharged from the nozzle 67 to flush the outside of the biofilm carrier 53 to realize the cleaning of the blockage of the biofilm carrier 53; the motor 2 65 is controlled to work and drive the screw 63 to rotate. The screw 63 rotates to drive the vertical plate 66 to move up and down. When the vertical plate 66 moves upward, it drives the nozzle 67 to move upward. At the same time, the rack 68 drives the gear 69 and the nozzle 67 to rotate clockwise. When the vertical plate 66 moves downward, it drives the nozzle 67 to move downward. The rack 68 drives the gear 69 and the nozzle 67 to rotate counterclockwise, so as to realize the multi-angle jet cleaning of the biofilm carrier 53; the ultrasonic generating part 8 is controlled to work and send a signal to the ultrasonic transducer part. The ultrasonic transducer part generates vibration and transmits it to the hollow connecting part 51 and the hollow carrier frame 52 through the conducting part 7, so as to realize the ultrasonic anti-blocking cleaning of the biofilm carrier 53.

[0065] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biofilm-ecological bed combined treatment device for black and odorous water, comprising a container (1), a floating bed support plate (2) fixedly connected to the inner wall of the container (1), a floating bed body (3) clamped in the floating bed support plate (2), and a plurality of aeration pipes (4) fixedly connected to the inside of the container (1), characterized in that: It also comprises a plurality of biological filler parts (5) located inside the container (1) and below the floating bed body (3), and the two ends of the biological filler parts (5) are respectively connected to the lower end of the floating bed body (3) and the inner wall of the container (1); The biological filler part (5) comprises a plurality of hollow carrier frames (52), hollow connecting parts (51) integrally formed at the upper and lower ends of the hollow carrier frames (52), a hollow tube (54) rotatably connected to the plurality of hollow carrier frames (52) and the hollow connecting parts (51), and a plurality of biofilm carriers (53) fixed to the outer wall of the hollow tube (54) and respectively located in the plurality of hollow carrier frames (52), wherein the plurality of hollow carrier frames (52) are connected via two adjacent hollow connecting parts (51) and connected in series to form a whole; The container (1) is also internally connected to a rotating portion (56) which is connected to the hollow tube (54) and drives the biofilm carrier (53) to rotate in the hollow carrier frame (52) to stir the water flow and prevent biofilm clogging; The rotating part (56) comprises a rotating joint (561) fixedly connected to the lower end of the container (1), and a driving component located inside the container (1) and connected to the rotating joint (561) for driving the inner tube of the rotating joint (561) to rotate, wherein the inner tube of the rotating joint (561) passes through the container (1) and is inserted into the hollow tube (54); The driving assembly comprises a plurality of sprocket wheels (562) rotatably connected to the interior of the container (1) and respectively fixed to the outer walls of the inner tubes of the plurality of rotating joints (561), a sprocket wheel (564) rotatably connected to the interior of the container (1), a chain belt (565) connecting the plurality of sprocket wheels (562) and the sprocket wheels (564), and a motor (563) fixed to the outer wall of one side of the container (1), wherein the output shaft of the motor (563) extends into the container (1) and is fixed to the sprocket wheel (564); A plurality of aeration holes (55) are provided inside the hollow tube (54), and a carrier clearing assembly (6) is also connected inside the container (1), and the carrier clearing assembly (6) comprises a plurality of guide plates (61) fixedly connected to the inner wall of the container (1), a plurality of movable grooves (62) provided on the inner bottom wall of the container (1), a plurality of vertical plates (66) respectively movably inserted into the plurality of movable grooves (62), a movable groove (661) provided inside the vertical plates (66), a plurality of nozzles (67) connected to the inner wall of the movable groove (661), a plurality of valve bodies (671) respectively connected to the input ends of the plurality of nozzles (67), and a plurality of tube bodies (662) respectively connected to the plurality of vertical plates (66) and connected to the input ends of the plurality of valve bodies (671); The gas enters the hollow tube (54) through the rotary joint (561) and is discharged from the aeration hole (55), and is exhausted from the inside of the biofilm carrier (53) to the outside, thereby clearing the blockage of the biofilm carrier (53).

2. The biofilm-ecological bed combined treatment equipment for black and odorous water according to claim 1 is characterized by: The lower end of the container (1) is provided with a plurality of pipe interfaces (641), and the interior of the container (1) is provided with a plurality of pipe joints (64) respectively connected to the plurality of pipe interfaces (641); one ends of the plurality of pipe bodies (662) are respectively connected to the plurality of pipe joints (64), and the other ends of the plurality of vertical plates (66) are movably plugged into the interior of the plurality of guide plates (61).

3. The biofilm-ecological bed combined treatment equipment for black and odorous water according to claim 2 is characterized by: The plurality of nozzles (67) are rotatably connected to the inner wall of the movable groove (661), and the vertical plate (66) is internally rotatably connected with a plurality of gears (69), and the plurality of gears (69) are respectively fixedly connected to one side of the plurality of nozzles (67). The plurality of vertical plates (66) are internally movably provided with racks (68) meshing with the plurality of gears (69), and the lower ends of the racks (68) are fixedly connected to the inner wall of the movable groove (661). The plurality of vertical plates (66) are internally screwed with screw rods (63), and the lower ends of the screw rods (63) are rotatably connected to the inner wall of the movable groove (661). The lower end of the container (1) is fixedly connected with a plurality of motors (65), and the output shafts of the plurality of motors (65) penetrate the container (1) and are respectively fixedly connected to the plurality of screw rods (63).

4. The biofilm-ecological bed combined treatment equipment for black and odorous water bodies according to claim 3 is characterized by: The bottom wall of the container (1) is fixedly connected to a conducting portion (7), and a mounting groove (71) for accommodating the hollow connecting portion (51) is provided inside the conducting portion (7). The lower end of the container (1) is fixedly connected to an ultrasonic generating portion (8), and an ultrasonic transducer portion is fixedly connected inside the conducting portion (7), and the ultrasonic transducer portion is connected to the ultrasonic generating portion (8).

5. The biofilm-ecological bed combined treatment equipment for black and odorous water according to claim 4 is characterized by: A water inlet (11) is provided on one side of the container (1), and a first drain outlet (12) and a second drain outlet (13) are provided on the other side of the container (1). A sluice (14) for controlling the drainage flow of the second drain outlet (13) is connected to the container (1).

6. The biofilm-ecological bed combined treatment equipment for black and odorous water bodies according to claim 5 is characterized by: A reflux defloating part (9) is connected to one side of the container (1), and the reflux defloating part (9) comprises a box body (91) and a circulation pump (93) fixedly connected to one side of the container (1), and a filter plate (92) clamped on the inner wall of the box body (91), and an input end of the circulation pump (93) is connected to the inner cavity of the box body (91), and an input end of the circulation pump (93) is connected to the inner cavity of the container (1).

7. A method for using a device for treating black and odorous water, the method adopts the biofilm-ecological bed combined treatment device for black and odorous water as described in claim 6, characterized in that: The following steps are involved: S1, the water to be treated enters the container (1) from the water inlet (11), the biofilm on the biofilm carrier (53) in the container (1) adsorbs and degrades organic matter in the water, and aquatic plants are arranged on the floating bed body (3) to treat pollutants in the water by utilizing the synergistic effect of plant roots and soil; S2, controlling the motor 1 (563) to work and drive the sprocket 2 (564) to rotate, the sprocket 2 (564) drives the remaining multiple sprockets 1 (562) and the inner tube of the rotary joint (561) to rotate through the chain belt (565), the inner tube of the rotary joint (561) drives the hollow tube (54) and the biofilm carrier (53) to rotate in the hollow connecting part (51) and the hollow carrier frame (52), the biofilm carrier (53) continuously rotates in the water body to break the boundary layer on the surface of the biofilm, and prevent the local accumulation of suspended matter and biofilm on the carrier surface; S3, connecting the rotary joint (561) and the pipe interface (641) to the air supply pipe, the gas enters the hollow tube (54) through the rotary joint (561) and is discharged from the aeration hole (55), exhausts gas from the inside of the biofilm carrier (53) to the outside to clear the blockage of the biofilm carrier (53), the gas enters the pipe body (662) through the pipe interface (641), and is discharged from the nozzle (67), flushes the outside of the biofilm carrier (53) to clear the blockage of the biofilm carrier (53); S4, control the second motor (65) to work and drive the screw (63) to rotate, the screw (63) rotates to drive the vertical plate (66) to move up and down, when the vertical plate (66) moves upward, it drives the nozzle (67) to move upward, and at the same time, the rack (68) drives the gear (69) and the nozzle (67) to rotate clockwise, when the vertical plate (66) moves downward, it drives the nozzle (67) to move downward, and the rack (68) drives the gear (69) and the nozzle (67) to rotate counterclockwise, so as to achieve multi-angle jet cleaning of the biofilm carrier (53); S5, controlling the ultrasonic generating part (8) to work and sending a signal to the ultrasonic transducer part, the ultrasonic transducer part generates vibration and transmits the vibration to the hollow connecting part (51) and the hollow carrier frame (52) through the conducting part (7), thereby realizing ultrasonic anti-blocking cleaning of the biofilm carrier (53), and can be used in conjunction with the gas cleaning in S3 to achieve better anti-blocking treatment.

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