CN220766704U - Water inlet and reflux device for multistage AO process - Google Patents
Water inlet and reflux device for multistage AO process Download PDFInfo
- Publication number
- CN220766704U CN220766704U CN202322492795.XU CN202322492795U CN220766704U CN 220766704 U CN220766704 U CN 220766704U CN 202322492795 U CN202322492795 U CN 202322492795U CN 220766704 U CN220766704 U CN 220766704U
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- water inlet
- reflux
- multistage
- channel
- stage
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- 238000010992 reflux Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title abstract description 14
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 19
- 239000010802 sludge Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001932 seasonal effect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a water inlet and reflux device of a multistage AO process, which comprises a multistage AO treatment device formed by anoxic zones and aerobic zones which are arranged in a crossing way, wherein an independent water inlet channel is arranged in each anoxic zone, the tail end of the multistage AO treatment device is connected with a sludge reflux well, one side of the sludge reflux well is fixedly connected with an external reflux channel, the external reflux channel is connected with the starting end of the anoxic zone of a first stage, an internal reflux pump well is arranged in the multistage AO treatment device, one side of the internal reflux pump well is connected with an internal reflux channel, and the internal reflux channel is refluxed from the tail end of the aerobic zone of a last stage to the starting end of the anoxic zone of a second stage. The utility model performs independent water distribution and metering control aiming at a multistage AO process multistage water inlet mode and inner and outer reflux, can pertinently adjust the water inlet quantity and the operation modes of the inner and outer reflux quantity of each section according to the water quality, concentration, seasonal variation and load condition of municipal sewage, improves the sewage treatment effect, reduces the operation cost, and has better environmental and economic benefits.
Description
Technical Field
The utility model relates to the technical field of municipal wastewater treatment, in particular to a water inlet and reflux device for a multistage AO process.
Background
The existing municipal domestic sewage treatment plant process design is simpler and coarser, the running mode cannot be adjusted according to the water quality, concentration, seasonal variation and load condition of municipal sewage, the sewage treatment effect is poor, the treatment cost is high, and aiming at the current energy conservation and emission reduction targets of the sewage treatment industry, the technology optimization and innovation of the water inlet and backflow system of the multistage AO process are carried out.
Disclosure of Invention
The utility model provides a water inlet and reflux device for a multistage AO process.
The utility model is realized by the following technical scheme:
the utility model provides a water inlet and reflux unit of multistage AO technology, includes the multistage AO processing apparatus that alternately sets up anoxic zone, good oxygen district formation, and each level anoxic zone sets up an independent inlet canal alone, multistage AO processing apparatus's end-to-end connection has the mud return shaft, mud return shaft one side fixedly connected with outer return canal, and outer return canal inserts the anoxic zone starting end of first level, multistage AO processing apparatus inside is provided with the internal reflux pump well, internal reflux pump well one side is connected with the internal reflux canal, and the internal reflux canal flows back to the anoxic zone starting end of second level from the good oxygen district end of last level.
A channel flowmeter and a water inlet gate are arranged in the water inlet channel.
The initial end of the water inlet channel is connected with a water inlet distribution well.
The external reflux canal is internally provided with a canal flowmeter, and one side of the external reflux canal, which is close to the starting end of the first-stage anoxic zone, is provided with an external reflux water inlet hole.
And a channel flowmeter and a water inlet gate are arranged in the internal reflux channel.
The technical scheme of the utility model has at least the following beneficial effects:
the utility model optimizes the process and technology of a water inlet and reflux device of a multistage AO process of a sewage treatment plant, adopts each stage of anoxic zone to independently arrange a water inlet channel with a water inlet gate and a flowmeter, and an external reflux channel is required to be provided with a reflux flowmeter and is connected with the starting end of a first stage of anoxic zone, so that one stage of internal reflux is specially designed, and the internal reflux channel is refluxed from the tail end of a last stage of aerobic zone to the starting end of a second stage of anoxic zone and is provided with a channel flowmeter and a water inlet gate. The method can pertinently adjust the running modes of water inflow and inner and outer reflux amounts of each section according to the water quality, concentration, seasonal variation and load condition of municipal sewage, improves the sewage treatment effect, reduces the running cost, and has better environmental and economic benefits.
Drawings
FIG. 1 is a schematic block diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of A in FIG. 1;
in the figure: 1. an anoxic zone; 2. an aerobic zone; 3. a water inlet distribution well; 4. a water inlet channel; 5. a channel flowmeter; 6. a water inlet gate; 7. a sludge return well; 8. an outer return channel; 9. an external reflux water inlet hole; 10. an internal reflux pump well; 11. and (5) an internal reflux canal.
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.
Examples
Referring to fig. 1-2, the water inlet and reflux device of the multi-stage AO process provided by the utility model comprises multi-stage AO processing devices formed by an anoxic zone 1 and an aerobic zone 2 which are arranged in a crossing manner, wherein each stage of anoxic zone 1 is independently provided with an independent water inlet channel 4, each stage of water inlet channel 4 can be used for independently injecting water into a corresponding sewage processing zone, the full-load processing purpose of the whole multi-stage AO processing device is realized, the sewage processing cost is reduced, the tail end of the multi-stage AO processing device is connected with a sludge reflux well 7, one side of the sludge reflux well 7 is fixedly connected with an external reflux channel 8, the external reflux channel 8 is connected with the starting end of the anoxic zone 1 of a first stage, an internal reflux pump well 10 is arranged in the multi-stage AO processing device, one side of the internal reflux pump well 10 is connected with an internal reflux channel 11, and the internal reflux channel 11 flows back to the starting end of the anoxic zone 1 of a second stage from the tail end of the aerobic zone 2 of a last stage, and the internal reflux channel 11 and the external reflux channel 8 are arranged to perform circulating processing of sewage, so that the processing effect is improved.
The channel flowmeter 5 and the water inlet gate 6 are arranged in the water inlet channel 4, the channel flowmeter 5 can display the water injection flow rate, and meanwhile, the water inlet gate 6 can control the water injection flow rate and further control the water injection quantity.
The initial end of the water inlet channel 4 is connected with a water inlet distribution well 3, and the sewage split flow can be reasonably distributed to each section of the water inlet channel 4 through the water inlet distribution well 3.
The channel flowmeter 5 is arranged in the external reflux canal 8, and an external reflux water inlet hole 9 is formed in one side of the external reflux canal 8, which is close to the starting end of the first-stage anoxic zone 1.
The internal reflux canal 11 is internally provided with a canal flowmeter 5 and a water inlet gate 6, the canal flowmeter 5 can display the reflux sewage flow rate, and the water inlet gate 6 can control the reflux sewage quantity.
The working principle of the water inlet and reflux device of the multi-stage AO process based on the embodiment is that a water inlet channel 4 with a water inlet gate 6 and a channel flowmeter 5 is independently arranged in each stage of anoxic zone 1, an outer reflux channel 8 is matched with the channel flowmeter 5 and is connected with the starting end of the anoxic zone 1 of the first stage, one stage of inner reflux is specially designed, the inner reflux channel 11 is refluxed from the tail end of the aerobic zone 2 of the last stage to the starting end of the anoxic zone 1 of the second stage, and is matched with the channel flowmeter 5 and the water inlet gate 6, when the water inlet of municipal sewage is reduced or the water quality is diluted due to the seasonality, the inner reflux quantity and the outer reflux quantity in a system can be simultaneously reduced by controlling the channel flowmeter 5 and the water inlet gate 6, so that the sewage treatment capacity of the multi-stage AO process is rapidly reduced, and the energy consumption is saved; when the urban expansion or the seasonal increase of the urban sewage inflow or the water quality is enriched, the inner reflux quantity and the outer reflux quantity in the system can be simultaneously regulated by controlling the channel flowmeter 5 and the water inlet gate 6, so that the rapid expansion of the sewage treatment capacity of the multi-stage AO process is realized.
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.
Claims (5)
1. The utility model provides a water inlet and reflux unit of multistage AO technology which characterized in that: including alternately setting up anoxic zone (1), the multistage AO processing apparatus that aerobic zone (2) formed, each level anoxic zone (1) sets up an independent inlet canal (4) alone, multistage AO processing apparatus's end-to-end connection has mud back flow well (7), mud back flow well (7) one side fixedly connected with outer backward flow canal (8), and outer backward flow canal (8) inserts anoxic zone (1) starting end of first level, multistage AO processing apparatus inside is provided with interior backward flow pump well (10), interior backward flow pump well (10) one side is connected with interior backward flow canal (11), and interior backward flow canal (11) follow the aerobic zone (2) terminal backward flow of last level to anoxic zone (1) starting end of second level.
2. A multi-stage AO-process water inlet and reflux unit according to claim 1 wherein: a channel flowmeter (5) and a water inlet gate (6) are arranged in the water inlet channel (4).
3. A multi-stage AO-process water inlet and reflux unit according to claim 1 wherein: the starting end part of the water inlet channel (4) is connected with a water inlet distribution well (3).
4. A multi-stage AO-process water inlet and reflux unit according to claim 1 wherein: the external reflux canal (8) is internally provided with a canal flowmeter (5), and one side of the external reflux canal (8) close to the starting end of the first-stage anoxic zone (1) is provided with an external reflux water inlet hole (9).
5. A multi-stage AO-process water inlet and reflux unit according to claim 1 wherein: a channel flowmeter (5) and a water inlet gate (6) are arranged in the internal reflux canal (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322492795.XU CN220766704U (en) | 2023-09-13 | 2023-09-13 | Water inlet and reflux device for multistage AO process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322492795.XU CN220766704U (en) | 2023-09-13 | 2023-09-13 | Water inlet and reflux device for multistage AO process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220766704U true CN220766704U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322492795.XU Active CN220766704U (en) | 2023-09-13 | 2023-09-13 | Water inlet and reflux device for multistage AO process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220766704U (en) |
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2023
- 2023-09-13 CN CN202322492795.XU patent/CN220766704U/en active Active
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