CN220283839U - Integrated A2O-MBBR (anaerobic-anoxic-oxic) integrated domestic sewage treatment device - Google Patents
Integrated A2O-MBBR (anaerobic-anoxic-oxic) integrated domestic sewage treatment device Download PDFInfo
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- CN220283839U CN220283839U CN202321680498.1U CN202321680498U CN220283839U CN 220283839 U CN220283839 U CN 220283839U CN 202321680498 U CN202321680498 U CN 202321680498U CN 220283839 U CN220283839 U CN 220283839U
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- Prior art keywords
- tank
- mbbr
- anaerobic
- sedimentation tank
- sewage treatment
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- 239000010865 sewage Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000004062 sedimentation Methods 0.000 claims abstract description 40
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003814 drug Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 10
- 238000005276 aerator Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005273 aeration Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007227 biological adhesion Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Physical Water Treatments (AREA)
Abstract
The utility model discloses a container type A2O-MBBR integrated domestic sewage treatment device which comprises an anaerobic tank, an anoxic tank, an aerobic MBBR tank, a secondary sedimentation tank, a high sedimentation tank and equipment which are sequentially communicated, wherein a water inlet of the anaerobic tank is connected with a water inlet of a basket type filter, a submersible mixer device is arranged on the side wall of the outlet end of the anoxic tank, spherical suspended filler is filled in the aerobic MBBR tank, a microporous tubular aerator is arranged at the bottom of the aerobic MBBR tank, a mixed liquid reflux pump is further arranged at the bottom of the aerobic MBBR tank, and a sludge reflux pump and an overflow triangular weir are arranged in the secondary sedimentation tank; a guide cylinder and a stripping sludge pipeline are arranged in the high sedimentation tank; an ultraviolet disinfection device, a vortex fan, a PLC display operation control cabinet, a dosing metering pump and a medicine box with a slide rail device are arranged between the devices. The utility model is integrally made of container type corrugated plate materials, is firm and durable, reasonable and compact, has high integrated level, small occupied area and convenient and quick construction and installation.
Description
Technical Field
The utility model belongs to the field of sewage treatment, and particularly relates to an improved integrated A2O-MBBR (anaerobic fermentation tank) integrated domestic sewage treatment device.
Background
Since 2021, various integrated sewage treatment devices have been developed for the characteristics of decentralized rural domestic sewage production distribution, complex terrain, imperfect pipe network coverage, unstable water quantity and the like.
At present, the conventional treatment technology adopted by the existing integrated sewage treatment device is mature, comprises AO, A2O, MBR, MBBR and the combination of two or more technologies, plays a positive role in controlling the water environment pollution of villages and towns, but the treatment devices still generally have the problems of exceeding standard of nitrogen and phosphorus in tail water outlet, large occupied area, low automation and intelligent degree, high operation energy consumption, complex management and maintenance and the like.
Disclosure of Invention
The utility model aims to provide the integrated A2O-MBBR domestic sewage treatment device which organically combines an A2O process, an MBBR process, an automatic intelligent monitoring technology and an integrated forming technology to optimally design pool type, layout and hydraulic form, is reasonable and compact, has high space utilization rate, intelligent operation and small occupied area, and is mainly applied to treating small and medium-sized village sewage.
The aim of the utility model can be achieved by the following technical scheme:
the integrated packaging type A2O-MBBR integrated domestic sewage treatment device is characterized by comprising an anaerobic tank, an anoxic tank, an aerobic MBBR tank, a secondary sedimentation tank, a high sedimentation tank and equipment which are sequentially communicated, wherein a water inlet of the anaerobic tank is connected with a water inlet of a basket type filter, a lifting handle is arranged on a top cover of the basket type filter, a water outlet of the basket type filter vertically and downwards passes through a pipe and is horizontally distributed, an exhaust port is arranged at the top of the anaerobic tank, a water passing pipe communicated with the anaerobic tank is arranged on the side wall of the inlet end of the anoxic tank, a submersible mixer device is arranged on the side wall of the outlet end of the anoxic tank, spherical suspended filler is filled in the aerobic MBBR tank, microporous pipe type aerators are uniformly arranged at the middle bottom of the aerobic MBBR tank, a mixed liquid reflux pump and an overflow triangular weir are arranged in the secondary sedimentation tank, and a gas stripping sludge pipeline is also arranged in the secondary sedimentation tank; a guide cylinder is arranged in the high sedimentation tank, three layers of bucket-shaped grid plates are arranged at intervals of 600-700 mm, the top inlet of the center cylinder is connected with a dosing pipe, and a gas stripping sludge pipeline is arranged in the high sedimentation tank; an ultraviolet disinfection device, a vortex fan, a PLC display operation control cabinet, a dosing metering pump and a medicine box with a slide rail device are arranged between the devices.
The water inlet on the side wall of the anaerobic tank is connected with a basket filter, the filtering precision of the basket filter is set to be 0.5-10 mm, a spring with a buffer function is additionally arranged at the top of the anaerobic tank to lift the anaerobic tank, or the anaerobic tank is rotated to lift the anaerobic tank, and the water outlet pipe orifice is arranged at the bottom or on the side wall according to the pipeline trend requirement.
The number of the water passing pipes on the side wall of the anoxic tank is changed according to the water quality and the width of the tank body, but the distance between the water passing pipes is at least more than 500mm for uniform water flow.
Spherical suspended filler is suspended in the aerobic MBBR tank, the top opening of the hollow fishnet-shaped sphere outside the spherical suspended filler is normally opened, or the spherical suspended filler is provided with a hole with a flower edge, and the inside of the spherical suspended filler is a rotary sphere.
The guide cylinder of the high sedimentation tank is a round cylinder, and the bottom of the guide cylinder is provided with a horn mouth.
The PLC display operation control cabinet between the devices is used for setting input, graphics and voice command passwords; the medicine boxes are arranged into a single medicine box, two-by-two combination or all according to actual engineering requirements; the slide rail under the medicine chest is set to be a bottom-supporting slide rail, a steel ball slide rail, a roller type slide rail or a wear-resistant nylon slide rail.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, a basket filter with the precision of 3mm is firstly arranged at the water inlet end of the anaerobic tank, and a handle device is arranged on the basket filter. When sewage filtered by the coarse and fine gratings firstly flows into a basket filter connected with a water inlet of the anaerobic tank, impurities can be further filtered, pollutants containing nitrogen and phosphorus can be directly removed, membrane fillers in the aerobic MBBR membrane tank can be protected, the service life of the aerobic MBBR membrane tank is prolonged, and the operation cost is reduced.
Compared with the traditional aeration with most blast, the submerged mixer is convenient for dividing and sectionally processing, can keep the mixed liquid in the tank in a suspension state only by providing necessary circulation flow rate to form continuous circulation water flow, so that microorganisms are fully contacted with the substrate, and the flow rate of the circulation water flow in the tank is far higher than the inflow water flow rate, so that the water flow in the tank has huge dilution homogenization capacity, thus the submerged mixer has the characteristics of shock resistance, long service life and convenient maintenance in the later period.
In the aerobic tank MBBR tank, the filler adopts spherical suspended filler, the outside is a hollow fishnet-shaped sphere, the inside is a rotary sphere, and the aerobic tank MBBR tank has the advantages of strong biological adhesion, large specific surface area, high porosity, good chemical and biological stability and long service life. The rubber microporous tube type aerator is adopted for aeration, and has the advantages of simple structure, high oxygen utilization rate, large service area, reliable performance, difficult blocking of air holes, difficult backflow of sewage, uniform circumferential stress, long service period, convenient installation and maintenance and the like.
The high sedimentation tank is provided with the guide cylinder, the center of the guide cylinder is provided with three layers of bucket-shaped grid plates at intervals of 600-700 mm, and the inlet at the upper end is connected with the outlet of the metering pump for dosing. The bucket-shaped grid can greatly increase the proportion of turbulent vortex, greatly increase the collision times of particles, improve flocculation effect and reduce the volume of equipment.
The equipment room layout is reasonable and compact, an intelligent PLC is adopted to display the operation screen, the intelligent PLC is installed on one side of the door side of the container, and the operation screen is provided with the protection cover and the operation password, so that a professional operator can only open the operation. The medicine adding device is arranged at the lower part of the PLC display operation screen, the medicine outlet pump is fixedly arranged on the side wall, the medicine box is arranged below the medicine outlet pump by adopting the drawing slide rail, operators only need to draw out the medicine box outside the device when adding medicines, the operation between equipment is not needed, the convenience and the rapidness are realized, the volume between the equipment is greatly reduced, and the input cost is reduced.
The integral corrugated plate is made of container type corrugated plate materials, is firm and durable, reasonable and compact, has high integrated level, small occupied area and convenient and quick construction and installation.
Drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a cross-sectional view a-a of the present utility model.
Fig. 3 is a cross-sectional view b-b of the present utility model.
Legend description: 1. an anaerobic tank; 2. an anoxic tank; 3. an aerobic MBBR tank; 4. a secondary sedimentation tank; 5. a high sedimentation tank; 6. the equipment room; 7. a basket filter; 8. a water passing pipe; 9. an exhaust port; 10. a submersible mixer; 11. rubber microporous tube type aerator; 12. spherical suspended filler; 13. a mixed liquid reflux pump; 14. a sludge reflux pump; 15. overflow triangle weir of secondary sedimentation tank; 16. a guide cylinder; 17. a triangular weir for discharging water from the high sedimentation tank; 18. an ultraviolet disinfection device; 19. the PLC displays an operation control cabinet; 20. dosing metering pumps; 21. a medicine box; 22. a vortex fan.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides the following technical solutions: an improved integrated A2O-MBBR integrated domestic sewage treatment device comprises an anaerobic tank 1, an anoxic tank 2, an aerobic MBBR tank 3, a secondary sedimentation tank 4, a high sedimentation tank 5 and an equipment room 6 which are sequentially communicated, wherein the anaerobic tank, the anoxic tank, the aerobic MBBR tank, the secondary sedimentation tank, the high sedimentation tank and the equipment room 6 are generally arranged in a rectangular cabinet body.
The water inlet of the anaerobic tank 1 is connected with the water inlet of the basket filter 7, a lifting handle is arranged on the top cover of the basket filter 7, and the water outlet of the basket filter 7 is vertically downwards provided with a pipe and a horizontal cloth. The top of the anaerobic tank 1 is provided with an exhaust port 9. The inlet end side wall of the anoxic tank 2 is provided with a water passing pipe 8 communicated with the anaerobic tank 1, and the outlet end side wall of the anoxic tank 2 is provided with a submersible mixer device 10. The aerobic MBBR tank 3 is filled with spherical suspended filler 12, microporous pipe type aerators 11 are uniformly arranged at the middle bottom of the aerobic MBBR tank 3, and a mixed liquid reflux pump 13 is further arranged in the aerobic MBBR tank 3. The secondary sedimentation tank 4 is internally provided with a sludge reflux pump 14 and a secondary sedimentation tank overflow triangular weir 15. And a gas stripping sludge pipeline is also arranged in the secondary sedimentation tank 4. The high sedimentation tank 5 is internally provided with a guide cylinder, three layers of bucket-shaped grid plates are arranged at intervals of 600-700 mm, and the top inlet of the central cylinder 16 is connected with a dosing pipe. And a gas stripping sludge pipeline is arranged in the high sedimentation tank 5. The equipment room 6 is provided with an ultraviolet disinfection device 18, a vortex fan 22, a PLC display operation control cabinet 19, a dosing metering pump 20 and a medicine box 21 with a slide rail device.
The water inlet on the side wall of the anaerobic tank 1 is connected with a basket filter 7, the filtering precision of the basket filter 7 is set to be 0.5-10 mm, preferably 3mm, a spring with a buffering effect is additionally arranged at the top of the anaerobic tank, or a handle is rotatably pulled, and a water outlet pipe orifice is arranged at the bottom or on the side wall according to the pipeline trend requirement.
The number of the water passing pipes on the side wall of the anoxic tank 2 is changed according to the water quality and the width of the tank body, but the distance between the water passing pipes is at least more than 500mm for uniform water flow.
Spherical suspended filler 12 is suspended in the aerobic MBBR tank 3, and the top opening of the hollow fishnet-shaped sphere outside the spherical suspended filler is normally opened or provided with a hole with a flower edge, and the inside of the spherical suspended filler is a rotary sphere.
The guide cylinder of the high sedimentation tank 5 is a round cylinder, and the bottom of the guide cylinder is provided with a horn mouth. Or a square cylinder body is manufactured according to the water quality and water quantity requirements, and a horn mouth is arranged at the bottom of the square cylinder body.
The PLC display operation control cabinet of the equipment room 6 is used for setting input, graphics and voice command passwords and preventing misoperation. The medicine boxes 21 are arranged into single medicine boxes, two-by-two combination or all according to actual engineering requirements; the slide rail under the medicine chest 21 is set to be a bottom-supporting slide rail, a steel ball slide rail, a roller slide rail or a wear-resistant nylon slide rail.
The working process of the utility model is as follows:
sewage flows into the bottom of the tank through a water distribution pipe at a water outlet of the basket filter 7, uniformly flows into the bottom of the tank through a water passing pipe 8 on the side wall of the anoxic tank 2 by adopting an up-flow type, the submersible mixer 10 provides energy to form continuous circulating water flow, the sewage flows into the tank through a water passing hole on the side wall of the aerobic MBBR tank 3, a suspended spherical suspended filler 12 is arranged in the tank, a rubber microporous pipe aerator 11 and a mixed liquid reflux pump 13 are arranged in the tank, the mixed liquid flows back to the front end of the anoxic tank 2 through a pipeline arranged in an exhaust hole on the side wall of the anoxic tank 2, when the sewage flows into the secondary sedimentation tank 4 for sedimentation through the aerobic MBBR tank 3, the sludge reflux pump 14 flows back to the front end of the anoxic tank 2 through a pipeline arranged in the exhaust hole on the side wall of the anoxic tank 2, the supernatant flows into a central cylinder 16 for coagulation reaction through an overflow weir 15 of the secondary sedimentation tank, and the upper end of the central cylinder 16 is connected with an outlet pipeline of a dosing metering pump 20 for dosing. The sediment sludge in the secondary sedimentation tank 4 and the high sedimentation tank 5 is discharged into a sludge tank through a gas stripping pipeline, and the supernatant in the high sedimentation tank 5 flows into an ultraviolet disinfection device 18 through a high sedimentation tank water outlet triangular weir 17 by gravity and is discharged, so that the sewage treatment effect is improved, and the water quality of the discharged water reaches the first grade A standard in GB18918-2002 of pollutant emission standards of urban sewage treatment plants.
The vortex fan 22 is used for aeration and air supply of the rubber microporous tube type aerator 11 and the air stripping pipeline, an air passing hole is formed in the tank body, all air is collected and treated through the air discharging hole 9, and the dosing metering pump 20 is connected with the medicine box 21 for dosing.
According to the utility model, the automatic intelligent operation system is configured in the whole course, and operators can remotely monitor the control system through the mobile phone APP and can also operate in real time through the touch display screen, so that the automatic and intelligent operation is realized.
The structure of the funnel-shaped mesh in the guide cylinder 16 in the present utility model is disclosed in the patent No. ZL 200720035134.2.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
The other non-illustrated parts to which the present utility model relates are the same as in the prior art.
Claims (6)
1. The integrated packaging type A2O-MBBR integrated domestic sewage treatment device is characterized by comprising an anaerobic tank, an anoxic tank, an aerobic MBBR tank, a secondary sedimentation tank, a high sedimentation tank and equipment which are sequentially communicated, wherein a water inlet of the anaerobic tank is connected with a water inlet of a basket type filter, a lifting handle is arranged on a top cover of the basket type filter, a water outlet of the basket type filter vertically and downwards passes through a pipe and is horizontally distributed, an exhaust port is arranged at the top of the anaerobic tank, a water passing pipe communicated with the anaerobic tank is arranged on the side wall of the inlet end of the anoxic tank, a submersible mixer device is arranged on the side wall of the outlet end of the anoxic tank, spherical suspended filler is filled in the aerobic MBBR tank, microporous pipe type aerators are uniformly arranged at the middle bottom of the aerobic MBBR tank, a mixed liquid reflux pump and an overflow triangular weir are arranged in the secondary sedimentation tank, and a gas stripping sludge pipeline is also arranged in the secondary sedimentation tank; a guide cylinder is arranged in the high sedimentation tank, three layers of bucket-shaped grid plates are arranged at intervals of 600-700 mm, the top inlet of the center cylinder is connected with a dosing pipe, and a gas stripping sludge pipeline is arranged in the high sedimentation tank; an ultraviolet disinfection device, a vortex fan, a PLC display operation control cabinet, a dosing metering pump and a medicine box with a slide rail device are arranged between the devices.
2. The integrated cartridge type A2O-MBBR domestic sewage treatment device according to claim 1, wherein: the water inlet on the side wall of the anaerobic tank is connected with a basket filter, the filtering precision of the basket filter is set to be 0.5-10 mm, a spring with a buffer function is additionally arranged at the top of the anaerobic tank to lift the anaerobic tank, or the anaerobic tank is rotated to lift the anaerobic tank, and the water outlet pipe orifice is arranged at the bottom or on the side wall according to the pipeline trend requirement.
3. The integrated cartridge type A2O-MBBR domestic sewage treatment device according to claim 1, wherein: the number of the water passing pipes on the side wall of the anoxic tank is changed according to the water quality and the width of the tank body, but the distance between the water passing pipes is at least more than 500mm for uniform water flow.
4. The integrated cartridge type A2O-MBBR domestic sewage treatment device according to claim 1, wherein: spherical suspended filler is suspended in the aerobic MBBR tank, the top opening of the hollow fishnet-shaped sphere outside the spherical suspended filler is normally opened, or the spherical suspended filler is provided with a hole with a flower edge, and the rotary sphere inside the spherical suspended filler is made into a fixed sphere.
5. The integrated cartridge type A2O-MBBR domestic sewage treatment device according to claim 1, wherein: the guide cylinder of the high sedimentation tank is a round cylinder or is made into a square cylinder according to the water quality and water quantity requirements, and the bottom of the guide cylinder is provided with a horn mouth.
6. The integrated cartridge type A2O-MBBR domestic sewage treatment device according to claim 1, wherein: the PLC display operation control cabinet between the devices is used for setting input, graphics and voice command passwords; the medicine boxes are arranged into a single medicine box, two-by-two combination or all according to actual engineering requirements; the slide rail under the medicine chest is set to be a bottom-supporting slide rail, a steel ball slide rail, a roller type slide rail or a wear-resistant nylon slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680498.1U CN220283839U (en) | 2023-06-29 | 2023-06-29 | Integrated A2O-MBBR (anaerobic-anoxic-oxic) integrated domestic sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680498.1U CN220283839U (en) | 2023-06-29 | 2023-06-29 | Integrated A2O-MBBR (anaerobic-anoxic-oxic) integrated domestic sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220283839U true CN220283839U (en) | 2024-01-02 |
Family
ID=89327085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321680498.1U Active CN220283839U (en) | 2023-06-29 | 2023-06-29 | Integrated A2O-MBBR (anaerobic-anoxic-oxic) integrated domestic sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220283839U (en) |
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2023
- 2023-06-29 CN CN202321680498.1U patent/CN220283839U/en active Active
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