CN116789260A - System for improving suspended filler backflow and mesh blocking of MBBR (moving bed biofilm reactor) process - Google Patents
System for improving suspended filler backflow and mesh blocking of MBBR (moving bed biofilm reactor) process Download PDFInfo
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- CN116789260A CN116789260A CN202310718290.2A CN202310718290A CN116789260A CN 116789260 A CN116789260 A CN 116789260A CN 202310718290 A CN202310718290 A CN 202310718290A CN 116789260 A CN116789260 A CN 116789260A
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- trawl
- improving
- mesh
- suspended filler
- mbbr
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- 239000000945 filler Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000000903 blocking effect Effects 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000002955 isolation Methods 0.000 claims abstract description 43
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 19
- 210000005056 cell body Anatomy 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000010408 sweeping Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims 10
- 239000004744 fabric Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a system for improving backflow of suspended fillers and mesh blockage of an MBBR (moving bed biofilm reactor) process, which belongs to the technical field of sewage treatment and comprises a water inlet pipe, a tank body, a separation plate, an aeration device, suspended fillers, an isolation screen and a water outlet pipe. The system for improving the backflow of the suspended filler and the mesh blockage of the MBBR process provided by the invention has the advantages that the arrangement of the trawl assembly can realize the recycling of the suspended filler in the tank body, and the suspended filler is prevented from accumulating at the position of the water outlet.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a system for improving suspended filler backflow and mesh blockage of an MBBR process.
Background
The working principle of the Moving Bed Biofilm Reactor (MBBR) is that a certain amount of suspended filler with specific gravity similar to that of water is added into the reactor, the suspended filler can be used as a carrier for microorganism adhesion growth, microorganisms form a biofilm on the surface and inside of the carrier, and the biofilm is fully contacted with sewage along with the disturbance of water flow under the action of aeration, so that pollutants in the sewage are degraded by the microorganisms on the biofilm, and the aim of sewage purification treatment is achieved. The microorganism loaded on the suspended filler can reach very high biomass, and the microbial community is more complex and various in type, has stronger impact load resistance, and has more excellent purification effect on sewage than other purification treatment processes.
However, in the existing moving bed biomembrane reactor process system, suspended fillers can flow to the water outlet along with the movement of water flow and accumulate in front of an isolation screen of the water outlet, so that the suspended fillers in the reactor are unevenly distributed, and the purification and water outlet effects of the reactor are affected. In addition, the problem that the system is not smooth in drainage because the isolating screen is easy to block the meshes in the long-time operation process of the system is also existed.
Disclosure of Invention
The invention aims to provide a system for improving the backflow of suspended filler and mesh blockage of an MBBR process, and aims to solve the technical problem that the suspended filler is accumulated at the position of a water outlet in the use process of the existing moving bed biomembrane reactor, so that the purification and water outlet effects of the reactor are affected.
In order to achieve the above purpose, the invention adopts the following technical scheme: a system for improving suspended filler reflux and mesh blockage of MBBR process is provided, comprising:
the device is characterized by further comprising a trawl assembly, a rotating assembly and a water distribution gallery, wherein the trawl assembly is connected with the partition plate through the rotating assembly, the rotating assembly is positioned on the upper portion of the partition plate, a cleaning device is arranged in the water distribution gallery, and an air inlet pipe is arranged on the lower portion of one side of the tank body, which is close to the water inlet pipe.
Preferably, the partition plate is configured to divide the cell body into a cell body front portion and a cell body rear portion.
Preferably, the isolating screen is provided with meshes, and the pore diameter of the meshes is smaller than the particle size of the suspended filler.
Preferably, the trawl assembly is composed of a first telescopic joint, a first trawl and a second trawl.
Preferably, the first trawl is arranged at the end of the first expansion joint far away from a section of the trawl assembly, and the second trawl is arranged at the end of the first expansion joint near to the section of the trawl assembly;
the mesh aperture of the screen mesh on the first trawl and the second trawl is smaller than the particle size of the suspended filler;
the first trawl and the second trawl can be combined into a shape similar to a lambdak, one surface is free of a screen, and the other part is provided with a screen;
the first screen and one end of the second screen are respectively provided with a folding angle;
the extreme end of the first trawl is at a certain distance from the inner edge of the pool body and the edge of the isolation screen.
Preferably, the cleaning device consists of a second telescopic joint and artificial bristles.
Preferably, the second telescopic joint is positioned on the cleaning device, and the artificial bristles are positioned at the tail end of the second telescopic joint;
the number and the positions of the second expansion joints correspond to the number and the positions of the meshes on the isolation screen.
Preferably, the end of the second expansion joint is slightly beyond or flush with the outer edge of the mesh when the cleaning device is in operation.
Preferably, the outer diameter of the end of the second expansion joint is smaller than the diameter of the mesh.
Preferably, the length of the artificial bristles after being pushed out is 1.5-3 times of the distance between the first trawl and the inner edge of the tank body or the edge of the isolation screen or 1.5-3 times of the distance between the first trawl and the tail end of the second expansion joint.
The system for improving the backflow of the suspended filler and the mesh blockage of the MBBR process has the beneficial effects that: compared with the prior art, the system for improving the backflow and mesh blockage of the suspended filler in the MBBR process has the advantages that the suspended filler in the tank body can be recycled through the arrangement of the trawl assembly, the suspended filler is prevented from accumulating at the position of the water outlet, and the purification and water outlet effects of the reactor are guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system for improving suspended filler reflow and mesh clogging in an MBBR process according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an isolation screen structure used in a system for improving suspended filler reflux and mesh blockage in an MBBR process according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a system water outlet structure for improving backflow of suspended filler and mesh blockage in an MBBR process according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a cleaning assembly used in a system for improving suspended filler backflow and mesh clogging in an MBBR process in an activated state according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a trawl assembly in an unactuated state for a system for improving suspended filler backflow and mesh plugging in an MBBR process according to an embodiment of the present invention;
FIG. 6 is a top view of a trawl assembly in an activated state for a system for improving suspended filler reflux and mesh plugging in an MBBR process according to an embodiment of the present invention;
FIG. 7 is a front view of a trawl assembly in an activated state for a system for improving suspended filler reflux and mesh plugging in an MBBR process according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a trawl assembly used in a system for improving suspended filler reflux and mesh blockage in an MBBR process according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a trawl assembly used in a system for improving suspended filler backflow and mesh blocking in an MBBR process according to an embodiment of the present invention.
In the figure: 1. a cell body; 101. a cell body front part; 102. a rear part of the tank body; 2. a water inlet pipe; 3. a partition plate; 4. an air inlet pipe; 5. an aeration assembly; 6. an isolation screen structure; 601. a mesh; 7. a water distribution gallery; 8. a water outlet pipe; 9. a rotating assembly; 10. a trawl assembly; 1001. a first telescopic joint; 1002. a first trawl; 1003. a second trawl; 11. a cleaning assembly; 1101. a second telescopic joint; 1102. an artificial bristle.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 9, a system for improving suspended filler backflow and mesh blocking in MBBR process according to the present invention will now be described. The system for improving the backflow of suspended filler and mesh blockage of the MBBR process is characterized by further comprising a trawl assembly 10, a rotating assembly 9 and a water distribution gallery 7, wherein the trawl assembly 10 is connected with the partition plate 3 through the rotating assembly 9, the rotating assembly 9 is positioned on the upper portion of the partition plate 3, a cleaning device 11 is arranged in the water distribution gallery 7, and an air inlet pipe 4 is arranged on the lower portion of one side of the tank body 1 close to the water inlet pipe 2.
Wherein, the water inlet pipe 2, the tank body 1, the partition plate 3, the aeration device 5, the suspended filler, the isolation screen 6 and the water outlet pipe 8 can form a reactor main body. The partition plate 3 is arranged in the tank body 1 and is used for dividing the space of the tank body 1 into a tank body front-arranged part 101 and a tank body rear-arranged part 102; the tank body 1 is provided with an isolation screen assembly communicated with the tank body rear part 102.
The trawl assembly 10 comprises a first telescopic joint 1001 movably connected with the rotating assembly 9, and a trawl member connected with the first telescopic joint 1001; the first telescopic joint 1001 has a first use state and a second use state, and the first use state drives the trawl member to move at the rear portion 102 of the tank body and collect suspended filler; in the second use state, the first telescopic joint 1001 drives the trawl member to move from the tank rear portion 102 to the tank front portion 101 and release the suspension filler. After the suspended filler is released, the first expansion joint 1001 can also drive the trawl member to move from the tank front portion 101 to the tank rear portion 102.
Compared with the prior art, the system for improving the backflow and mesh blockage of the suspended filler in the MBBR process provided by the invention has the advantages that the suspended filler in the tank body 1 can be recycled by the aid of the trawl assembly 10, accumulation of the suspended filler at the position of a water outlet is avoided, and the purification and water outlet effects of the reactor are ensured.
As a specific implementation manner of the embodiment of the present invention, the tank body 1 may be a cement tank body, or may be a container structure formed by welding using a metal plate body. The cell body 1 is usually a container structure formed by welding metal plates. The inner wall surface of the tank body 1 is coated with an anti-corrosion structure layer, so that the service life of the tank body 1 can be effectively prolonged.
As a specific implementation of the embodiment of the present invention, the partition plate 3 has a plate body structure. The left and right sides of the partition plate 3 are fixedly connected with the left and right sides of the tank body 1 in a welding mode, and a channel for sewage flow is reserved at the lower part.
In any of the realizable implementations, the partition plate 3 is a plate body structure. The left side surface and the right side surface of the partition plate 3 are respectively connected and fixed with the left side surface and the right side surface of the tank body 1 through a bolt structure, and a channel for sewage flow is reserved at the lower part.
As a specific implementation of the embodiment of the present invention, referring to fig. 1 to 9, the first telescopic joint 1001 is connected to the partition plate 3 through the rotating assembly 9. The structure of the rotating assembly 9 is not unique, and it is only necessary to connect and fix the partition plate 3 and drive the first expansion joint 1001 to rotate. It should be noted that the specific composition of the rotating assembly 9 is the prior art and will not be described herein.
In either embodiment, the trawl door assembly 10 includes two sets of first telescopic joints 1001, and the two sets of first telescopic joints 1001 are respectively disposed at two ends of the same side of the partition plate 3. The stability of the trawl member when moving is ensured. The rotating assembly 9 is provided with two sets. The rotating assemblies 9 are in one-to-one correspondence with the first telescopic joints 1001. I.e. each set of first telescopic joints 1001 is fixedly connected to the partition plate 3 by means of a set of swivel assemblies 9.
As an embodiment of the present invention, referring to fig. 1 to 9, a trawl member includes: a second trawl 1003 and a first trawl 1002, the second trawl 1003 being fixedly connected to the first telescopic joint 1001; the first trawl 1002 is connected with one end of the first telescopic joint 1001, which is away from the partition plate 3, the first trawl 1002 has a first use state and a second use state, the first trawl 1002 contacts with the second trawl 1003 in the first use state, one end is an open end, and the other ends are net bodies with net structures; in the second use state, the first trawl 1002 moves along with the expansion and contraction of the first telescopic joint 1001 and is separated from the second trawl 1003. More specifically, the first trawl 1002 may be disposed at an end of a section of the first expansion joint 1001 away from the trawl unit 9, and the second trawl 1003 may be disposed at an end of a section of the first expansion joint 1001 near the trawl unit 9. The mesh openings of the screens on the first and second trawl 1002, 1003 are smaller than the particle size of the suspended filler.
In this embodiment, a tank protection member is provided at an end of the first trawl 1002 facing away from the first telescopic joint 1001. The arrangement of the pond body protection piece can enable the tail end of the first trawl 1002 to have a certain distance with the inner edge of the pond body and the edge of the isolation screen assembly when the trawl assembly 10 operates, so that the inner edge of the pond body and the isolation screen assembly are prevented from being scratched by the first trawl 1002, and meanwhile, the safe operation of the trawl assembly 10 is ensured.
In some embodiments, the cell body protector is a strip balloon attached to the first trawl 1002. The strip-shaped air bags are arranged to have a buffering effect.
In some embodiments, the tank guard is a rubber strip that is attached to the first trawl 1002.
In this embodiment, the first telescopic joint 1001 is an electric telescopic rod. The first telescopic joint 1001 is electrically connected to an external power source. The first telescopic joint 1001 can be in communication connection with an external controller through a Bluetooth module carried by the first telescopic joint.
In any of the possible embodiments, the first trawl 1002 and the second trawl 1003 may be combined into a shape similar to a "Λ" with no screen on one side and a screen structure on the other side; the first trawl 1002 and the second trawl 1003 are respectively provided with a folding angle at one end, so as to prevent suspended filler from falling off in the moving process of the trawl assembly 10. When the trawl assembly 10 is in operation, as the end of the pool body protector, where the first trawl 1002 is arranged, is at a certain distance from the inner edge of the pool body and the edge of the isolation screen structure 6, the first trawl 1002 is prevented from scratching the inner edge of the pool body and the isolation screen structure 6, and meanwhile, the safe operation of the trawl assembly 10 is ensured.
As an embodiment of the present invention, referring to fig. 1-9, the present invention further includes a cleaning assembly 11 coupled to the isolation screen assembly, the cleaning assembly 11 being configured to push suspended filler material around the isolation screen assembly through the isolation screen assembly. The cleaning assembly 11 also has a cleaning action on the isolation screen assembly.
In this embodiment, the isolation screen assembly comprises: the isolation screen structure 6, the water distribution gallery 7 and the water outlet pipe 8 are connected with the tank body 1, and the isolation screen structure 6 is communicated with the tank body rear-mounted part 102; one end of the water distribution gallery 7 is communicated with the isolation screen structure 6, and the other end is communicated with the cleaning assembly 11; the water outlet pipe 8 is communicated with the water distribution gallery 7. The isolation screen structure 6 includes an isolation screen main body which is embedded in the tank body 1 and is communicated with the tank body rear portion 102. The water distribution gallery 7 is connected with the isolation screen structure 6, and the inner space of the water distribution gallery 7 is connected with the tank body rear portion 102 through the isolation screen structure 6. The water distribution gallery 7 is connected with a water outlet pipe 8, and the water outlet pipe 8 is communicated with the water distribution gallery 7. The water body can enter the water distribution gallery 7 from the tank body rear part 102 through the isolation screen structure 6 and then be discharged from the water distribution gallery 7 through the water outlet pipe 8. The sweeping assembly 11 is arranged at the end of the water distribution gallery 7 facing away from the isolation screen structure 6. And part of the structure of the cleaning assembly 11 is arranged in the water distribution gallery 7.
In the present embodiment, the cleaning unit 11 includes: the artificial bristles 1102 and the second expansion joint 1101, wherein the artificial bristles 1102 are arranged in the tail end of the second expansion joint 1101; the second telescopic joint 1101 is connected with the water distribution gallery 7; the second expansion joint 1101 is configured to drive the artificial bristles 1102 through the isolation screen structure 6 into the tank rear 102. The cleaning assembly 11 can clean impurities on the main body openings of the isolation screen while recycling the suspended filler, so that the blockage is avoided. The operation of the sweeping assembly 11 allows the trawl assembly 10 to collect more suspended filler, reducing the number of operations of the trawl assembly 10.
In this embodiment, the second expansion joint 1101 is disposed on the water distribution gallery 7, the artificial bristles 1102 are disposed at the end of the second expansion joint 1101, the number and the disposed positions of the second expansion joint 1101 correspond to the number and the positions of the meshes 601 on the isolation screen structure 6, and when the cleaning assembly 11 operates, the end of the second expansion joint 1101 slightly exceeds or is flush with the outer edge of the meshes 601, and the outer diameter of the end of the second expansion joint 1101 is smaller than the diameter of the meshes 601, that is, the meshes 601 disposed on the isolation screen structure 6 are configured such that a gap exists between the second expansion joint 1101 and the meshes 601 when the second expansion joint 1101 passes through, so that the artificial bristles 1102 can normally enter and exit the meshes 601; the length of the pushed-out artificial bristles 1102 is at least 1.5 times the distance between the first trawl 1002 and the inner edge of the tank or the edge of the isolation screen structure 6, and if the end of the second expansion joint 1101 slightly exceeds the outer edge of the mesh 601, the length of the pushed-out artificial bristles 1102 is at least 1.5 times the distance between the first trawl 1002 and the end of the second expansion joint 1101.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 9 together, further include one or more of an aeration assembly 5 disposed in the tank rear portion 102, an air inlet pipe 4 communicating with the tank front portion 101, and an water inlet pipe 2 communicating with the tank front portion 101. The air inlet pipe 4 is arranged below the water inlet pipe 2. The aeration assembly 5 is a prior art and will not be described in detail herein.
In this embodiment, sewage enters the tank body front part 101 of the tank body 1 from the water inlet pipe 2, enters the tank body rear part 102 through the lower part of the partition plate 3 under the pushing action of the air blown in through the air inlet pipe 4, then enters the water distribution gallery 7 through the mesh holes 601 on the isolation screen structure 6 under the action of the aeration assembly 5, and then is discharged out of the tank body 1 through the water outlet pipe 8. Wherein, the cell body front-end part 101 and the cell body rear-end part 102 are separated by a separation plate 3, and the aperture of the mesh 601 is smaller than the particle size of the suspended filler.
The moving bed biofilm reactor requires a timing of the start-up of the trawl unit 10 and the sweep unit 11 during operation. The second expansion joint 1101 is extended out one by one when the cleaning assembly 11 is operated, and the artificial bristle 1102 is pushed out when the last section is beyond or flush with the outer edge of the mesh 601. At this time, the artificial bristles 1102 may push away the suspended packing piled outside the isolation screen structure 6, and since the outer diameter of the end of the second expansion joint 1101 is smaller than the diameter of the mesh 601, the normal drainage function of the isolation screen structure 6 is not affected. The synthetic bristles 1102 may push the suspended load adjacent the isolation screen structure 6 away from the isolation screen structure 6 to enable the trawl assembly 10 to collect more suspended load. After the artificial bristles 1102 are pushed out, the trawl assembly 10 is started, the first expansion joint 1001 is pushed out section by section, and is directly pushed to be close to the isolation screen structure 6, and then lifted upwards, at this time, suspended filler accumulated beside the isolation screen structure 6 is collected on the first trawl 1002, and meanwhile, the first trawl 1002 also can disturb the artificial bristles 1102, so that suspended filler left in the first trawl 1102 falls onto the first trawl 1102. When the trawl assembly 10 is lifted to the designated height, the trawl assembly 10 is retracted section by section, and when the trawl assembly 10 is retracted, the trawl assembly 10 is gradually rotated under the driving action of the rotating assembly 9, the suspended filler on the trawl assembly 10 is brought into the tank body front portion 101, and then the trawl assembly 10 is rotated to restore to the initial state. After entering the front tank body part 101, the suspended filler is fully mixed with the water inlet, so that the reflux recycling of the suspended filler is realized. Upon retraction of the trawl door assembly 10, the sweeper assembly 11 is retracted. When the cleaning module 11 is retracted, the second expansion joint 1101 is retracted, and then the artificial bristles 1102 are retracted, so that the impurities attached to the mesh 601 can be cleaned when the artificial bristles 1102 are retracted.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A system for improving suspended filler reflux and mesh blockage in MBBR processes, comprising: inlet tube (2), cell body (1), division board (3), aeration equipment (5), suspension filler, isolation screen cloth structure (6), outlet pipe (8), its characterized in that still includes trawl net subassembly (10), rotating assembly (9) and water distribution corridor (7), trawl net subassembly (10) pass through rotating assembly (9) with division board (3) link to each other, rotating assembly (9) are located the upper portion of division board (3), set up cleaning device (11) in water distribution corridor (7), cell body (1) are close to inlet tube (2) one side lower part sets up intake pipe (4).
2. A system for improving MBBR process suspended filler backflow and mesh plugging according to claim 1, wherein the dividing plate (3) is configured to divide the tank (1) into a tank front portion (101) and a tank rear portion (102).
3. A system for improving the backflow and the mesh blockage of suspended fillers in an MBBR process according to any of claims 1-2, characterized in that the isolating screen (6) is provided with meshes (601), the pore size of the meshes (601) being smaller than the particle size of the suspended fillers.
4. A system for improving suspended filler back flow and mesh plugging of MBBR process according to claim 3, wherein said trawl unit (10) is comprised of a first expansion joint (1001), a first trawl (1002), a second trawl (1003).
5. A system for improving MBBR process suspended filler back flow and mesh plugging of claim 4, wherein said first trawl (1002) is disposed at the end of said first expansion joint (1001) distal to a section of said trawl assembly (10), said second trawl (1003) is disposed at the end of said first expansion joint (1001) proximal to a section of said trawl assembly (10);
the mesh aperture of the screen mesh on the first trawl (1002) and the second trawl (1003) is smaller than the particle size of the suspended filler;
the first trawl (1002) and the second trawl (1003) may be combined into a shape similar to a 'Λ', one side without a screen, and the rest part is provided with a screen;
a folding angle is respectively arranged at one end of the first screen (1002) and one end of the second screen (1003);
the extreme end of the first trawl (1002) is at a certain distance from the inner edge of the tank body and the edge of the isolation screen (6).
6. A system for improving the backflow of suspended filler and the clogging of meshes of MBBR processes according to claim 3, characterized in that said sweeping means (11) consist of a second telescopic joint (1101) and of artificial bristles (1102).
7. A system for improving the backflow of suspended filler and the clogging of meshes in MBBR processes as claimed in claim 6, characterized in that said second expansion joint (1101) is located on said sweeping device (11), said artificial bristles (1102) being located at the end of said second expansion joint (1101);
the number and positions of the second expansion joints (1101) correspond to the number and positions of the meshes (601) on the isolation screen (6).
8. A system for improving the backflow of suspended filler and plugging of meshes in MBBR processes as claimed in claim 7, wherein the second expansion joint (1101) terminates slightly beyond or flush with the outer edge of the mesh (601) when the sweeping device (11) is in operation.
9. A system for improving MBBR process suspended filler back flow and mesh plugging of claim 7, wherein the outer diameter of the end of the second expansion joint (1101) is smaller than the diameter of the mesh (601).
10. A system for improving the backflow of suspended filler and the clogging of meshes in MBBR process as claimed in claim 7, characterized in that the length of said artificial bristle (1102) after pushing out is 1.5-3 times the distance between said first trawl (1002) to the inner edge of the tank or the edge of said isolation screen (6) or 1.5-3 times the distance between to the end of the second telescopic joint (1101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310718290.2A CN116789260A (en) | 2023-06-16 | 2023-06-16 | System for improving suspended filler backflow and mesh blocking of MBBR (moving bed biofilm reactor) process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310718290.2A CN116789260A (en) | 2023-06-16 | 2023-06-16 | System for improving suspended filler backflow and mesh blocking of MBBR (moving bed biofilm reactor) process |
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| CN116789260A true CN116789260A (en) | 2023-09-22 |
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| CN202310718290.2A Pending CN116789260A (en) | 2023-06-16 | 2023-06-16 | System for improving suspended filler backflow and mesh blocking of MBBR (moving bed biofilm reactor) process |
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