A sewage treatment structure and treatment method based on hollow fiber biofilm

Abstract

The present invention discloses a sewage treatment structure and method based on a hollow fiber biofilm, which relates to the technical field of sewage treatment and aims to solve the technical problems that the existing hollow fiber biofilm structure is loose and susceptible to environmental interference, and is easily damaged and broken due to water flow impact and pollutant load fluctuations in sewage treatment, which reduces efficiency. Moreover, after damage, the equipment needs to be disassembled on a large scale, which is complicated and costly to operate. The structure includes a shell component, a mounting component, a connection component connected to the bottom of the mounting component, and a limit component. The present invention relies on the deflection displacement of the memory, the movement of the hinge, and the extension of the telescopic plate to easily resolve the impact of water flow, protect the biofilm structure, and steadily maintain the sewage treatment efficiency. When cleaning or replacing the filter, the handle is rotated counterclockwise, and the biofilm mechanism is easily removed without the need for large-scale disassembly of the equipment. The operation is simple, and the shedding and damage of the structure are reduced, which greatly reduces the cost of component replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more particularly to a sewage treatment structure and method based on a hollow fiber biofilm. Background Art

[0002] Sewage generated during human life is one of the main sources of water pollution. It mainly includes feces and washing sewage. The amount of domestic sewage discharged per person per day in cities is 150L to 400L, and its amount is closely related to the living standard. Domestic sewage contains a large amount of organic matter, such as cellulose, starch, sugar, fat, protein, etc.; it also often contains pathogens, viruses and parasite eggs; inorganic salts such as chlorides, sulfates, phosphates, bicarbonates and sodium, potassium, calcium, magnesium, and a small amount of heavy metals.

[0003] Chinese patent document (CN115650408B) discloses a sewage treatment device with a hollow fiber biofilm, which states in the description that "it includes a primary filter box, a first hydraulic rod is fixedly installed on the inner cavity side wall of the primary filter box, a first push plate is fixedly installed on the end of the first hydraulic rod not connected to the primary filter box, a primary filter screen is arranged in the bottom wall opening of the primary filter box, angle irons are welded to the four corners of the bottom surface of the primary filter box, and the four angle irons are connected to a collection box, a water suction pipe is welded to the bottom end of the side wall of the collection box, the water suction pipe is fixedly connected to a secondary filter box, and the secondary filter box is fixedly installed on the inner cavity side wall away from the water suction pipe. There is a second hydraulic rod, and a second push plate is fixedly installed on the end of the second hydraulic rod that is not connected to the re-filter box. The end of the re-filter box connected to the water suction pipe is plugged with a filter frame with a hollow fiber biofilm. This sewage treatment device with a hollow fiber biofilm is provided with a hollow fiber biofilm that is easy to replace, which ensures the water quality after sewage treatment. However, in actual use, it provides poor protection for the biofilm. Once the biofilm is damaged or needs to be replaced, the procedure is extremely cumbersome, which limits the service life of the biofilm and makes it difficult to quickly replace the damaged biofilm, resulting in poor sewage treatment effect.

[0004] Existing hollow fiber biofilms are primarily composed of microorganisms and their secreted extracellular polymers. Their structures are porous and sensitive to environmental changes. In practical applications such as sewage treatment, biofilms often face multiple challenges, including water impact and drastic fluctuations in pollutant loads. These factors can easily cause biofilm detachment or damage, significantly reducing sewage treatment efficiency. Furthermore, conventional biofilm systems often require large-scale disassembly and replacement of equipment to address membrane damage. This cumbersome and complex process is not only time-consuming and labor-intensive, but also significantly increases maintenance costs, limiting the system's economic viability and sustainability. Given this, we propose a wastewater treatment structure and method based on hollow fiber biofilms. Summary of the Invention

[0005] The purpose of the present invention is to provide a sewage treatment structure and treatment method based on hollow fiber biofilm, so as to solve the technical problems that the existing hollow fiber biofilm has a loose structure, is easily affected by environmental interference, is easily broken and damaged due to water flow impact and pollutant load fluctuations during sewage treatment, and has reduced efficiency. In addition, after damage, the equipment needs to be disassembled on a large scale, which is complicated to operate and costly.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage treatment structure based on hollow fiber biofilm, including a valve, a treatment box and a side plate, and also including:

[0007] The box structure includes a shell assembly, side panels arranged on both sides of the shell assembly, a plurality of valves connected to the side panels, and a sealing assembly, wherein the sealing assembly is located inside the shell assembly; and

[0008] The biofilm mechanism comprises a mounting assembly, a connecting assembly connected to the lower portion of the mounting assembly, and a limiting assembly, wherein the limiting assembly is arranged below the connecting assembly.

[0009] Firstly, the present invention can effectively alleviate the impact force when the water flow hits the storage device through the deflection displacement mode of the storage device, the movement of the hinge part and the extension of the telescopic plate, reduce the damage of the water flow impact on the biofilm structure, and reduce the risk of the structure falling off and being damaged due to the water flow impact, thereby helping to maintain the sewage treatment efficiency. Secondly, when it is necessary to clean or replace the filter, the entire biofilm mechanism can be easily removed from the treatment box through a series of operations such as rotating the handle counterclockwise, without the need for large-scale disassembly of the equipment, and the operation is simpler. Finally, it reduces the shedding and damage of the biofilm structure caused by water flow impact and pollutant load fluctuations, and also reduces the cost caused by frequent replacement of parts.

[0010] Preferably, both sides of the shell component are fixedly connected to two side plates respectively, and both sides of the two side plates are connected to a plurality of valves respectively, and the upper part of the inner wall of the shell component is slidably connected to two sealing components.

[0011] Preferably, the lower portion of the mounting assembly is fixedly connected to the connecting assembly, and the bottom end of the connecting assembly is fixedly connected to the limiting assembly;

[0012] The installation component is clamped on the upper part of the shell component, the installation component and the two sealing components are clamped with each other, and the limiting component is clamped on the lower part of the inner wall of the shell component.

[0013] Preferably, the housing assembly includes a processing box, a through hole is formed on the top of the processing box, two limiting grooves are formed on the top of the inner wall of the processing box, a mounting groove is formed on the bottom of the inner wall of the processing box, two first limiting plates are fixedly connected in the mounting groove, and the two first limiting plates are both 90-degree fan-shaped blocks;

[0014] Both sides of the processing box are fixedly connected to the two side plates respectively, and the sealing component is slidably connected in the limiting groove.

[0015] Preferably, the sealing assembly includes a sealing plate, the other side of the sealing plate is fixedly connected to the reinforcing rib, the upper part of the reinforcing rib is fixedly connected to a limit block, the lower part of the sealing plate is fixedly connected to a rotator, the rotator includes a bearing and a rotating shaft, the outside of the rotator is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a mounting cylinder;

[0016] The limiting block is slidably connected in the limiting groove. The cross sections of the limiting block and the limiting groove are both T-shaped. The mounting tube overlaps the mounting assembly.

[0017] Preferably, the mounting assembly includes a top cover, a docking groove is formed on the outside of the top cover, an isolation plate is fixedly connected to the bottom of the top cover, an insertion rod is fixedly connected to the bottom of the isolation plate, and a handle is fixedly connected to the top of the top cover;

[0018] The top cover is located in the through hole, the two sealing plates are both clamped in the docking grooves, the insertion rod is overlapped in the installation cylinder, and the bottom of the isolation plate is fixedly connected to the top of the connecting assembly.

[0019] Preferably, the connecting assembly includes a first bracket, two sleeves are clamped in the first bracket, the two sleeves are sleeved with the same rotating rod, the lower part of the rotating rod is fixedly connected to two storage devices via a sealing telescopic plate, and the lower parts of the two storage devices are hingedly connected to the other two storage devices via hinges, the hinges are provided with coil springs, the lower parts of the two storage devices located at the lower part are hingedly connected to the same second bracket via pins, and filters are slidably connected to the four storage devices;

[0020] The first bracket is fixedly connected to the bottom of the isolation plate, and the bottom of the second bracket is fixedly connected to the limiting assembly.

[0021] Preferably, the limiting assembly includes a reinforcing block, the lower portion of the reinforcing block is fixedly connected to the fixing plate, the lower portion of the fixing plate is fixedly connected to the connecting block via a fixing rod, and the connecting block is fixedly connected to two second limiting plates on the outside;

[0022] The upper part of the reinforcement block is fixedly connected to the lower part of the second bracket, and the two second limiting plates are both fan-shaped blocks with an angle of less than ninety degrees. The second limiting plates are located in the installation groove, and the upper part of the second limiting plates overlaps with the lower part of the first limiting plate.

[0023] Preferably, the storage comprises a filter housing, both sides of which are hollowed out, a slot is provided on one side of the filter housing, and guide grooves are provided above and below the inner wall of the slot;

[0024] The upper and lower parts of the filter housing are fixedly connected to the first bracket and the hinge respectively, and the filter is slidably connected in the slot;

[0025] The filter includes a guide frame, one side of the guide frame is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to two magnetic blocks, a carrier membrane is fixedly connected inside the guide frame, the other side of the guide frame is fixedly connected to an insert shell, the other side of the insert shell is provided with a groove, and a handrail is fixedly connected inside the groove;

[0026] The magnetic block is adsorbed in the slot, the guide frame is slidably connected in the guide groove, the plug shell is fitted with the inner wall of the slot, and the carrier film includes a blend of 80% polyacrylonitrile fiber and 20% viscose fiber.

[0027] A wastewater treatment method based on hollow fiber biofilm comprises the following steps:

[0028] S1. Insert the biofilm mechanism into the box mechanism and rotate the biofilm mechanism 90 degrees to complete the assembly of the biofilm mechanism and the box mechanism;

[0029] S2. After assembly, connect the external sewage tank and the water outlet tank to the tank body to ensure that the sewage flows steadily into the tank body;

[0030] S3. When sewage enters the box mechanism, the biofilm mechanism treats the sewage. During this process, the biofilm deforms accordingly when sewage enters, thereby relieving water flow pressure.

[0031] S4. When replacing or cleaning the biofilm mechanism, it is necessary to rotate the biofilm mechanism 90 degrees in the opposite direction to remove it from the top of the box mechanism for replacement and cleaning.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention designs a sealing component and a connecting component. The sewage will directly enter the treatment box along the valve and directly hit the storage and filter. At this time, the upper storage will deflect along the rotating rod, and the lower storage will deflect along the pin connected to it. At the same time, the hinge part affected by the impact will move backward under the impact of the water flow, and the telescopic plate will extend with the offset of the storage. The impact force of the water flow hitting the storage is alleviated by this deflection and displacement. When the filter needs to be cleaned or replaced, it is only necessary to rotate the handle counterclockwise. The rotation of the handle will cause the top cover and the isolation plate to drive the insertion rod, and then push the connecting rod and the sealing plate to slide along the limit groove. In this way, the two sealing plates will move away from the docking groove and release the restriction on the isolation plate. At this time, pull the handle upward to remove the entire biofilm. The mechanism is taken out from the treatment box, and when replacing or cleaning the storage device and the filter, you only need to extract the filter from the storage device. First, through the deflection displacement of the storage device, the movement of the hinge part and the extension of the telescopic plate, the impact force of the water flow hitting the storage device can be effectively alleviated, the damage to the biofilm structure caused by the impact of the water flow is reduced, and the risk of the structure falling off and damaged due to the impact of the water flow is reduced, which helps to maintain the efficiency of sewage treatment. Secondly, when it is necessary to clean or replace the filter, the entire biofilm mechanism can be easily taken out of the treatment box through a series of operations such as rotating the handle counterclockwise. There is no need to disassemble the equipment on a large scale, and the operation is easier. Finally, the damage to the biofilm structure caused by the impact of water flow and the fluctuation of pollutant load is reduced, and the cost caused by frequent replacement of parts is also reduced.

[0034] 2. The present invention also designs an installation component and a connecting component. When disassembling, the handle needs to be rotated ninety degrees counterclockwise. At this time, the first limit plate is located in the installation groove and separated from the second limit plate. At the same time, the upper sealing plate, pushed by the insertion rod, drives the connecting rod, the sealing plate and the limit block to move horizontally in the limit groove, so that the sealing plate loosens the restriction on the docking groove. In this way, the biofilm mechanism can be pulled out upward, which greatly reduces the difficulty of using the device. Similarly, when installing, it is only necessary to insert the biofilm mechanism into the through hole and then rotate it ninety degrees clockwise. At this time, the insertion rod will pull the sealing plate to fix it to the docking groove; at the same time, the first limit plate below will also fix the second limit plate below. The entire installation process is simple and easy, which also reduces the difficulty of using the device. Since the replacement and cleaning operations are simple, the manpower and material resources required for large-scale disassembly of equipment are reduced, thereby reducing maintenance costs.

[0035] 3. The present invention also designs a storage and a filter. When removing the filter from the storage, one only needs to grasp the handrail and pull the plug shell along the guide groove. As the guide frame gradually slides out along the guide groove, the filter shell and the guide frame can be separated. After cleaning or replacing the carrier membrane, the guide frame can be inserted into the filter shell again to complete the assembly. Since a magnetic block is provided in the guide frame, after installation, the magnetic block can initially fix the filter shell and the guide frame. When the device is inserted into the box mechanism, the plug shells on both sides will contact the inside of the processing box to achieve secondary fixation, thereby ensuring the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the cross-sectional structure of the box mechanism of the present invention;

[0038] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation assembly of the present invention;

[0039] Figure 4 This is a schematic diagram of the connection assembly structure of the present invention;

[0040] Figure 5 This is a schematic diagram of the explosion structure of the limiting assembly of the present invention;

[0041] Figure 6 Schematic diagram of the cross-sectional structure of the memory of the present invention;

[0042] Figure 7 Schematic diagram of the cross-sectional structure of the housing assembly of the present invention;

[0043] Figure 8 It is a schematic structural diagram of the sealing component of the present invention.

[0044] Description of the numbers in the figure:

[0045] 1. Box mechanism; 2. Biofilm mechanism;

[0046] 11. Housing assembly; 12. Valve; 13. Side panel; 14. Sealing assembly;

[0047] 21. Installation assembly; 22. Connection assembly; 23. Limit assembly;

[0048] 111. Processing box; 112. Through hole; 113. Limiting groove; 114. Mounting groove; 115. First limiting plate;

[0049] 141. Sealing plate; 142. Reinforcement rib; 143. Limit block; 144. Rotator; 145. Connecting rod; 146. Mounting cylinder;

[0050] 211. Top cover; 212. Docking slot; 213. Isolation plate; 214. Insertion rod; 215. Handle;

[0051] 221, first bracket; 222, sleeve; 223, rotating rod; 224, storage; 225, filter; 226, hinge; 227, second bracket; 228, telescopic plate;

[0052] 231, reinforcement block; 232, fixing plate; 233, fixing rod; 234, connecting block; 235, second limiting plate;

[0053] 2241, filter housing; 2242, slot; 2243, guide groove;

[0054] 2251. Guide frame; 2252. Connecting plate; 2253. Magnetic block; 2254. Carrier film; 2255. Insert shell; 2256. Groove; 2257. Handrail. DETAILED DESCRIPTION

[0055] like Figures 1 to 8 As shown, the present invention relates to a sewage treatment structure and method based on hollow fiber biofilm, including a valve 12, a treatment box 111 and a side plate 13, and also includes:

[0056] The box body mechanism 1 includes a shell component 11, side panels 13 arranged on both sides of the shell component 11, a plurality of valves 12 connected to the side panels 13, and a sealing component 14, wherein the sealing component 14 is located inside the shell component 11; and a biofilm mechanism 2 includes a mounting component 21, a connecting component 22 connected to the bottom of the mounting component 21, and a limiting component 23, wherein the limiting component 23 is arranged below the connecting component 22. By designing the sealing component 14 and the connecting component 22, the sewage will directly enter the treatment box 111 along the valve 12 and directly hit the storage 224 and the process. Filter 225, at this time, the upper storage 224 will deflect along the rotating rod 223, and the lower storage 224 will deflect along the pin connected thereto. At the same time, the hinge 226 that is impacted will move backward under the impact of the water flow, and the telescopic plate 228 will extend as the storage 224 deflects. This deflection and displacement will alleviate the impact of the water flow hitting the storage 224. When the filter 225 needs to be cleaned or replaced, just rotate the handle 215 counterclockwise. The rotation of the handle 215 will cause the top cover 211 and the isolation plate 213 to drive the rod 214 , and then push the connecting rod 145 and the sealing plate 141 to slide along the limiting groove 113, so that the two sealing plates 141 will be away from the docking groove 212, and at the same time release the restriction on the isolation plate 213. At this time, pull the handle 215 upward to remove the entire biofilm mechanism 2 from the processing box 111. When replacing or cleaning the storage 224 and the filter 225, it is only necessary to extract the filter 225 from the storage 224. First, through the deflection displacement of the storage 224, the movement of the hinge 226 and the extension of the telescopic plate 228, the The impact force when the water flow hits the storage 224 reduces the damage to the biofilm structure caused by the water flow impact, and reduces the risk of the structure falling off and being damaged due to the water flow impact, thereby helping to maintain the sewage treatment efficiency. Secondly, when it is necessary to clean or replace the filter 225, the entire biofilm mechanism 2 can be easily removed from the treatment box 111 through a series of operations such as rotating the handle 215 counterclockwise, without the need for large-scale disassembly of the equipment, and the operation is simpler. Finally, it reduces the risk of the biofilm structure falling off and being damaged due to water flow impact and fluctuations in pollutant load, and also reduces the cost caused by frequent replacement of parts.

[0057] In an embodiment of the present invention, both sides of the shell component 11 are fixedly connected to the two side plates 13 respectively, and the two sides of the two side plates 13 are respectively connected to a number of valves 12, the upper part of the inner wall of the shell component 11 is slidingly connected to the two sealing components 14, the lower part of the mounting component 21 is fixedly connected to the connecting component 22, the bottom end of the connecting component 22 is fixedly connected to the limiting component 23, the mounting component 21 is clamped on the upper part of the shell component 11, the mounting component 21 and the two sealing components 14 are clamped to each other, and the limiting component 23 is clamped on the lower part of the inner wall of the shell component 11. By arranging a coil spring outside the hinge 226, when the device is closed to replace the storage 224 and the filter 225, the coil spring will drive the upper and lower storages 224 to reset, to prevent them from being deflected and difficult to recover due to the impact of water flow again, thereby ensuring that the storage 224 can be easily taken out along the through hole 112.

[0058] In the embodiment of the present invention, the housing assembly 11 includes a processing box 111, a through hole 112 is provided on the top of the processing box 111, two limiting grooves 113 are provided on the top of the inner wall of the processing box 111, and a mounting groove 114 is provided on the bottom of the inner wall of the processing box 111. Two first limiting plates 115 are fixedly connected in the mounting groove 114, and the two first limiting plates 115 are both 90-degree fan-shaped blocks. The two sides of the processing box 111 are fixedly connected to the two side plates 13 respectively, and the sealing assembly 14 is slidably connected in the limiting groove 113. The sealing assembly 14 The sealing plate 141 includes a sealing plate 141, the other side of the sealing plate 141 is fixedly connected to the reinforcing rib 142, the upper part of the reinforcing rib 142 is fixedly connected to the limiting block 143, the lower part of the sealing plate 141 is fixedly connected to the rotator 144, the rotator 144 includes a bearing and a rotating shaft, the rotator 144 is fixedly connected to the outside of the rotator 144, the other end of the connecting rod 145 is fixedly connected to the mounting cylinder 146, the limiting block 143 is slidably connected to the limiting groove 113, the cross-sections of the limiting block 143 and the limiting groove 113 are both T-shaped, and the mounting cylinder 146 and the mounting assembly are fixedly connected. The components 21 are overlapped. By designing the installation component 21 and the connecting component 22, when disassembling, the handle 215 needs to be rotated 90 degrees counterclockwise. At this time, the first limit plate 115 is located in the installation groove 114 and is separated from the second limit plate 235. At the same time, the upper sealing plate 141 is pushed by the insertion rod 214 to drive the connecting rod 145, the sealing plate 141 and the limit block 143 to move horizontally in the limit groove 113, so that the sealing plate 141 is loosened from the restriction of the docking groove 212. In this way, the biofilm mechanism 2 can be pulled out upwards, which greatly reduces the The device is easy to use. Similarly, during installation, it is only necessary to insert the biofilm mechanism 2 into the through hole 112 and then rotate it ninety degrees clockwise. At this time, the insertion rod 214 will pull the sealing plate 141 to fix it to the docking groove 212; at the same time, the first limit plate 115 below will also fix the second limit plate 235 below. The entire installation process is simple and easy, which also reduces the difficulty of using the device. Since replacement and cleaning operations are simple, the manpower and material resources required for large-scale disassembly of equipment are reduced, thereby reducing maintenance costs.

[0059] As another embodiment of the present invention, the mounting assembly 21 includes a top cover 211, a docking groove 212 is opened on the outside of the top cover 211, an isolation plate 213 is fixedly connected to the bottom of the top cover 211, an insertion rod 214 is fixedly connected to the bottom of the isolation plate 213, a handle 215 is fixedly connected to the top of the top cover 211, the top cover 211 is located in the through hole 112, the two sealing plates 141 are both clamped in the docking groove 212, the insertion rod 214 is overlapped in the mounting tube 146, the bottom of the isolation plate 213 is fixedly connected to the top of the connecting assembly 22, the connecting assembly 22 includes a first bracket 221, two sleeves 222 are clamped in the first bracket 221, the same rotating rod 223 is sleeved in the two sleeves 222, and the bottom of the rotating rod 223 is fixedly connected to two storage devices 224 through a sealing telescopic plate 228, and the bottom of the two storage devices 224 is hinged to the other two storage devices 224 through a hinge 226. Then, a coil spring is provided outside the hinge 226, and the bottom of the two storages 224 located below is hinged to the same second bracket 227 through a pin shaft. The four storages 224 are slidably connected with filters 225. The first bracket 221 is fixedly connected to the bottom of the isolation plate 213, and the bottom of the second bracket 227 is fixedly connected to the limit assembly 23. By rotating the insertion rod 214, the connecting rod 145 and the sealing plate 141 are pulled to make the limit block 143 slide along the limit groove 113. The device fixes the top cover 211 and the isolation plate 213 by moving the sealing plate 141. At the same time, when the sealing plates 141 on both sides move toward each other, the gap between the through hole 112 and the top cover 211 will be covered. This not only achieves the fixing effect of the top cover 211, but also prevents sewage from overflowing along the gap between the through hole 112 and the top cover 211, thereby ensuring the sealing of the device.

[0060] As another embodiment of the present invention, the limiting assembly 23 includes a reinforcing block 231, the bottom of the reinforcing block 231 is fixedly connected to the fixing plate 232, the bottom of the fixing plate 232 is fixedly connected to the connecting block 234 by a fixing rod 233, and the connecting block 234 is fixedly connected to two second limiting plates 235 outside the connecting block 234, the top of the reinforcing block 231 is fixedly connected to the bottom of the second bracket 227, and the two second limiting plates 235 are both fan-shaped blocks with an angle of less than ninety degrees. The second limiting plate 235 is located in the mounting groove 114, and the top of the second limiting plate 235 overlaps the bottom of the first limiting plate 115. The memory 224 includes a filter shell 2241, and both sides of the filter shell 2241 adopt a hollow design. A slot 2242 is opened on one side of the filter shell 2241, and a guide groove 2243 is opened on the top and bottom of the inner wall of the slot 2242. The top and bottom of the filter shell 2241 are respectively fixed to the first bracket 221 and the hinge 226 The filter housing 2241 is connected to the filter housing 225 by sliding it into the slot 2242. By designing the storage 224 and the filter 225, when removing the filter 225 from the storage 224, one only needs to grasp the handrail 2257 and pull the plug housing 2255 along the guide slot 2243. As the guide frame 2251 gradually slides out along the guide slot 2243, the filter housing 2241 and the guide frame 2251 can be separated. After cleaning or replacing the carrier membrane 2254, the guide frame 2251 can be inserted into the filter housing 2241 again to complete the assembly. Since the guide frame 2251 is provided with a magnetic block 2253, after the installation is completed, the magnetic block 2253 can initially realize the fixation between the filter housing 2241 and the guide frame 2251. When the device is inserted into the box mechanism 1, the plug housings 2255 on both sides will contact the interior of the processing box 111 to achieve secondary fixation, thereby ensuring the stability of the device when in use.

[0061] The filter 225 includes a guide frame 2251, one side of the guide frame 2251 is fixedly connected to a connecting plate 2252, one side of the connecting plate 2252 is fixedly connected to two magnetic blocks 2253, a carrier film 2254 is fixedly connected to the guide frame 2251, the other side of the guide frame 2251 is fixedly connected to a plug shell 2255, the other side of the plug shell 2255 is provided with a groove 2256, the groove 2256 is fixedly connected to a handrail 2257, the magnetic block 2253 is adsorbed in the slot 2242, the guide frame 2251 is slidably connected in the guide groove 2243, the plug shell 2255 is fitted with the inner wall of the slot 2242, and the carrier membrane 2254 includes a blend of 80% polyacrylonitrile fiber and 20% viscose fiber. The carrier membrane 2254 is made of a blend of 80% polyacrylonitrile fiber and 20% viscose fiber, and its surface is modified activated carbon fiber composited with acrylic fiber and polypropylene. This structure provides a stable living environment for microorganisms, allowing them to attach and form biofilms on the carrier surface. Using organic pollutants as an energy source, the microorganisms metabolize and degrade organic pollutants in the water, thereby improving wastewater treatment efficiency. Furthermore, acrylic fiber exhibits excellent elasticity and light resistance, while polypropylene fiber offers high strength and abrasion resistance. When combined with activated carbon fibers, these two significantly enhance the carrier's mechanical strength and stability, thereby extending its service life.

[0062] Working principle: This embodiment provides a sewage treatment structure and treatment method based on hollow fiber biofilm. When in use, sewage will directly enter the treatment box 111 along the valve 12 and directly hit the storage 224 and the filter 225. At this time, the upper storage 224 will deflect along the rotating rod 223, and the lower storage 224 will deflect along the pin connected to it. At the same time, the impacted hinge 226 will move backward under the impact of the water flow, and the telescopic plate 228 will extend with the offset of the storage 224, thereby alleviating the impact of the water flow on the storage 224 in a deflection displacement manner. When the filter 225 needs to be cleaned or replaced, the handle 215 needs to be rotated counterclockwise 90 degrees, so that the top cover 211 and the isolation plate 213 drive the insertion rod 214 to push the connecting rod 145 and the sealing plate 141 to slide along the limiting groove 113. In this way, the two sealing plates 141 will move away from the docking groove 212, and the restriction on the isolation plate 213 will be released. At this time, the handle 215 can be pulled upward to remove the entire biofilm mechanism 2 from the processing box 111. When replacing or cleaning the storage 224 and the filter 225, it is only necessary to extract the filter 225 from the storage 224.

[0063] When disassembling, it is necessary to rotate the handle 215 counterclockwise 90 degrees. At this time, the first limiting plate 115 is located in the installation groove 114 and separated from the second limiting plate 235. At the same time, the upper sealing plate 141 is pushed by the insertion rod 214, driving the connecting rod 145 and the limiting block 143 to move horizontally in the limiting groove 113, so that the sealing plate 141 is loosened from the restriction of the docking groove 212. At this time, the biofilm mechanism 2 can be pulled out upward, reducing the difficulty of using the device. Similarly, when installing, it is only necessary to insert the biofilm mechanism 2 into the through hole 112 and then rotate it 90 degrees clockwise. The insertion rod 214 will pull the sealing plate 141 to fix the docking groove 212. At the same time, the first limiting plate 115 below will also fix the second limiting plate 235 below, which also reduces the difficulty of using the device.

[0064] To remove the filter 225 from the reservoir 224, simply grasp the handle 2257 and pull the insert housing 2255 along the guide groove 2243. As the guide frame 2251 gradually slides out along the guide groove 2243, the filter housing 2241 and guide frame 2251 are separated. After cleaning or replacing the carrier membrane 2254, the guide frame 2251 is reinserted into the filter housing 2241 to complete the assembly.

[0065] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A wastewater treatment structure based on hollow fiber biofilm, comprising a valve (12), a treatment box (111) and a side plate (13), characterized in that: Also includes, A box mechanism (1) comprises a housing assembly (11), side panels (13) arranged on both sides of the housing assembly (11), a plurality of valves (12) connected to the side panels (13), and a sealing assembly (14), wherein the sealing assembly (14) is located inside the housing assembly (11); and A biofilm mechanism (2) comprises a mounting assembly (21), a connecting assembly (22) connected to the bottom of the mounting assembly (21), and a limiting assembly (23), wherein the limiting assembly (23) is arranged below the connecting assembly (22); The connecting assembly (22) includes a first bracket (221), two sleeves (222) are clamped in the first bracket (221), a same rotating rod (223) is sleeved in the two sleeves (222), two storage devices (224) are fixedly connected to the bottom of the rotating rod (223) via a sealing telescopic plate (228), and the bottoms of the two storage devices (224) are hinged to the other two storage devices (224) via hinges (226), a coil spring is provided outside the hinge (226), the bottoms of the two storage devices (224) located at the bottom are hinged to the same second bracket (227) via pins, and filters (225) are slidably connected to the four storage devices (224); The storage (224) comprises a filter housing (2241), both sides of the filter housing (2241) are hollowed out, a slot (2242) is provided on one side of the filter housing (2241), and guide grooves (2243) are provided above and below the inner wall of the slot (2242); The upper and lower parts of the filter housing (2241) are fixedly connected to the first bracket (221) and the hinge (226), respectively, and the filter (225) is slidably connected in the slot (2242); The filter (225) comprises a guide frame (2251), one side of the guide frame (2251) is fixedly connected to a connecting plate (2252), one side of the connecting plate (2252) is fixedly connected to two magnetic blocks (2253), a carrier membrane (2254) is fixedly connected inside the guide frame (2251), the other side of the guide frame (2251) is fixedly connected to an insert shell (2255), the other side of the insert shell (2255) is provided with a groove (2256), and a handrail (2257) is fixedly connected inside the groove (2256); The magnetic block (2253) is adsorbed in the slot (2242), the guide frame (2251) is slidably connected in the guide groove (2243), the plug shell (2255) is in contact with the inner wall of the slot (2242), and the carrier film (2254) includes a blend of 80% polyacrylonitrile fiber and 20% viscose fiber.

2. The sewage treatment structure based on hollow fiber biofilm according to claim 1, characterized in that: The two sides of the housing assembly (11) are respectively fixedly connected to the two side plates (13), and the two sides of the two side plates (13) are respectively connected to a plurality of valves (12), and the upper part of the inner wall of the housing assembly (11) is slidably connected to the two sealing assemblies (14).

3. The sewage treatment structure based on hollow fiber biofilm according to claim 2, characterized in that: The lower portion of the mounting assembly (21) is fixedly connected to the connecting assembly (22), and the bottom end of the connecting assembly (22) is fixedly connected to the limiting assembly (23); The mounting assembly (21) is clamped above the housing assembly (11), the mounting assembly (21) and the two sealing assemblies (14) are clamped to each other, and the limiting assembly (23) is clamped below the inner wall of the housing assembly (11).

4. The sewage treatment structure based on hollow fiber biofilm according to claim 3, characterized in that: The housing assembly (11) includes a processing box (111), a through hole (112) is provided on the top of the processing box (111), two limiting grooves (113) are provided on the top of the inner wall of the processing box (111), and a mounting groove (114) is provided on the bottom of the inner wall of the processing box (111), two first limiting plates (115) are fixedly connected in the mounting groove (114), and the two first limiting plates (115) are both 90-degree fan-shaped blocks; Both sides of the processing box (111) are fixedly connected to the two side plates (13) respectively, and the sealing assembly (14) is slidably connected in the limiting groove (113).

5. The sewage treatment structure based on hollow fiber biofilm according to claim 4, characterized in that: The sealing assembly (14) includes a sealing plate (141), the other side of the sealing plate (141) is fixedly connected to a reinforcing rib (142), the upper side of the reinforcing rib (142) is fixedly connected to a limiting block (143), the lower side of the sealing plate (141) is fixedly connected to a rotator (144), the rotator (144) includes a bearing and a rotating shaft, the outside of the rotator (144) is fixedly connected to a connecting rod (145), and the other end of the connecting rod (145) is fixedly connected to a mounting cylinder (146); The limiting block (143) is slidably connected in the limiting groove (113); the cross sections of the limiting block (143) and the limiting groove (113) are both T-shaped; and the mounting cylinder (146) overlaps the mounting assembly (21).

6. The sewage treatment structure based on hollow fiber biofilm according to claim 5, characterized in that: The mounting assembly (21) includes a top cover (211), a docking groove (212) is provided on the outside of the top cover (211), an isolation plate (213) is fixedly connected below the top cover (211), an insertion rod (214) is fixedly connected below the isolation plate (213), and a handle (215) is fixedly connected above the top cover (211); The top cover (211) is located in the through hole (112), the two sealing plates (141) are both snap-fitted into the docking groove (212), the insertion rod (214) is overlapped in the mounting cylinder (146), and the bottom of the isolation plate (213) is fixedly connected to the top of the connecting assembly (22).

7. The sewage treatment structure based on hollow fiber biofilm according to claim 6, characterized in that: The first bracket (221) is fixedly connected to the bottom of the isolation plate (213), and the bottom of the second bracket (227) is fixedly connected to the limiting assembly (23).

8. The sewage treatment structure based on hollow fiber biofilm according to claim 7, characterized in that: The limiting assembly (23) includes a reinforcing block (231), the lower portion of the reinforcing block (231) is fixedly connected to a fixing plate (232), the lower portion of the fixing plate (232) is fixedly connected to a connecting block (234) via a fixing rod (233), and the connecting block (234) is fixedly connected to two second limiting plates (235) on the outside. The upper portion of the reinforcing block (231) is fixedly connected to the lower portion of the second bracket (227), and the two second limiting plates (235) are both fan-shaped blocks with an angle less than ninety degrees. The second limiting plates (235) are located in the mounting groove (114), and the upper portion of the second limiting plates (235) overlaps the lower portion of the first limiting plate (115).

9. A wastewater treatment method based on hollow fiber biofilm, based on the wastewater treatment structure based on hollow fiber biofilm according to claim 8, characterized in that: The following steps are included: S1, inserting the biofilm mechanism (2) into the box mechanism (1), and rotating the biofilm mechanism (2) ninety degrees to complete the assembly of the biofilm mechanism (2) and the box mechanism (1); S2. After the assembly is completed, the external sewage tank and the water outlet tank are connected to the tank body (1) to ensure that the sewage flows stably into the tank body (1); S3. When sewage enters the box mechanism (1), the biofilm mechanism (2) processes the sewage, and during this process, the biofilm deforms accordingly when the sewage enters, thereby relieving the water flow pressure; S4. When replacing or cleaning the biofilm mechanism (2), the biofilm mechanism (2) needs to be rotated 90 degrees in the opposite direction so that it can be taken out from the top of the box mechanism (1) for replacement and cleaning.

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