CN219156733U - Rural sewage treatment plant of low energy consumption - Google Patents
Rural sewage treatment plant of low energy consumption Download PDFInfo
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- CN219156733U CN219156733U CN202320306932.3U CN202320306932U CN219156733U CN 219156733 U CN219156733 U CN 219156733U CN 202320306932 U CN202320306932 U CN 202320306932U CN 219156733 U CN219156733 U CN 219156733U
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model discloses a low-energy-consumption rural sewage treatment device, relates to the technical field of rural sewage treatment, and aims to solve the problem that the existing sewage treatment equipment cannot well meet rural requirements; the utility model has the advantages that an aeration pipe is arranged below an aerobic zone, a gas stripping aeration pipe is arranged in the middle of the aeration pipe, a gas stripping rising zone is arranged above the aerobic zone, the upper end of the gas stripping aeration pipe extends into the gas stripping rising zone, a flow guiding zone is arranged at the periphery of the gas stripping rising zone, a sedimentation zone is arranged at the periphery of the gas stripping rising zone, an anoxic zone is arranged at the periphery of the aerobic zone, the sedimentation zone is positioned above the anoxic zone, an anaerobic zone is positioned below the anoxic zone, an upper circular seam and a lower circular seam are arranged at the lower part of the flow guiding zone, and the sedimentation zone and the anoxic zone are respectively communicated; the sludge concentration zone is arranged below the sedimentation zone and is positioned at the periphery of the anoxic zone, a sludge reflux zone is arranged between the sludge concentration zone and the anoxic zone, the upper end of the sludge reflux zone is communicated with the sedimentation zone, the lower end of the sludge reflux zone is provided with a sludge reflux port communicated with the anaerobic zone, and the lower end of the anaerobic zone is provided with a circular seam communicated with the aerobic zone; the utility model has compact structure and low energy consumption.
Description
Technical Field
The utility model relates to the technical field of rural sewage treatment, in particular to a low-energy-consumption rural sewage treatment device.
Background
In recent years, although the development trend of rural domestic sewage treatment is better, the sewage treatment level in rural areas is quite behind compared with towns, the existing sewage treatment process also has the defects of complex management and high operation cost, and certain applicability is lacking in rural areas, so that certain sewage treatment facilities are idle, and social resource waste is caused; for example, the utility model patent with the publication number of CN104291534B and the name of urban sewage treatment method discloses a multi-stage treatment device and a multi-stage treatment method, wherein the multi-stage treated sewage and the multi-stage treated sediment are obtained through different devices, and the last sewage and the last sediment are treated respectively; for example, the utility model patent with publication number of CN218403907U and name of an integrated rural sewage treatment tank is disclosed, wherein the disclosed sewage treatment equipment has compact arrangement, land saving, simple process and can be used for purifying sewage, but is provided with power equipment such as a driving motor, an aerator, a bactericidal lamp and the like, has higher operation cost and complex maintenance, has compact structure, is only a plurality of tanks, and still cannot meet the rural sewage treatment requirement. Therefore, there is a need for a low energy rural sewage treatment plant to address this problem.
Disclosure of Invention
The utility model aims to provide a rural sewage treatment device with low energy consumption, so as to solve the problem that the existing sewage treatment equipment cannot well meet rural demands.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a rural sewage treatment device with low energy consumption comprises an anoxic zone, an anaerobic zone, an aerobic zone, a gas stripping rising zone, a sedimentation zone and a sludge concentration zone which are sequentially communicated; the aerobic zone is positioned in the middle of the sewage treatment device, an aeration pipe is arranged below the aerobic zone, and the air inlet end of the aeration pipe extends to the outside of the sewage treatment device and is connected with a blower; the middle part of the aerobic zone is fixedly provided with a gas stripping vent pipe, the lower end of the gas stripping vent pipe extends to the upper part of the aeration pipe and is opposite to a plurality of gas outlets of the aeration pipe, a gas stripping rising zone is arranged above the aerobic zone, the upper end of the gas stripping vent pipe extends into the gas stripping rising zone, the periphery of the gas stripping rising zone is provided with a diversion zone, the gas stripping rising zone is communicated with the upper part of the diversion zone, the periphery of the diversion zone is provided with a sedimentation zone, an anoxic zone and an anaerobic zone are arranged at the periphery of the aerobic zone, the sedimentation zone is positioned above the anoxic zone, the anaerobic zone is positioned below the anoxic zone, an upper circular seam and a lower circular seam are formed at the lower part of the diversion zone and are respectively communicated with the lower part of the sedimentation zone and the upper end of the anoxic zone, and an inclined plate is arranged between the upper circular seam and the lower circular seam and is used for separating the sedimentation zone from the anoxic zone; the sludge concentration zone is also arranged below the sedimentation zone and is positioned at the periphery of the anoxic zone, a sludge reflux zone is also arranged between the sludge concentration zone and the anoxic zone, the upper end of the sludge reflux zone is communicated with the lower end of the sedimentation zone, and the lower end of the sludge reflux zone is provided with a sludge reflux port for being communicated to the anaerobic zone; one side of the lower end of the anaerobic zone, which is close to the aerobic zone, is provided with a circular seam to communicate the anaerobic zone and the aerobic zone; the sewage treatment device is also provided with a water inlet distribution pipe and a mud discharge pipe, wherein a water outlet of the water inlet distribution pipe is arranged at the upper end of the anoxic zone, and a mud inlet of the mud discharge pipe is arranged at the lower end of the mud concentration zone.
Preferably, the upper part of the sedimentation zone is a clear water zone, and a water collecting tank is fixedly arranged on the inner side of the upper part of the sedimentation zone and used for collecting clear water and discharging.
Preferably, the sewage treatment device is closed, and a vent pipe is arranged above the gas lifting area for exhausting.
Preferably, the upper annular seam, the lower annular seam and the annular seam are all provided with check plates for preventing backflow.
Preferably, the sewage treatment device is of a concentric circular or concentric polygonal annular structure.
Preferably, the water inlet distribution pipe comprises a water inlet pipe, an annular distribution pipe and a plurality of distribution branch pipes which are sequentially connected, the distribution branch pipes are distributed on the annular distribution pipe in an annular array, and a plurality of water outlets are formed in the lower ends of the distribution branch pipes.
Preferably, the mud discharging pipe comprises a circular collecting pipe and a mud discharging pipe, and a plurality of mud inlets are formed in the upper end of the circular collecting pipe.
Preferably, the filler is suspended or suspended in the aerobic zone, or the filler is suspended or suspended in both the aerobic zone and the anoxic zone.
Compared with the prior art, the utility model has the beneficial effects that:
1. the rural sewage treatment device with low energy consumption adopts an integrated arrangement concept, is compact, simple and reasonable in structure, and skillfully utilizes space through annular arrangement, so that the whole device occupies a small area.
2. The rural sewage treatment device with low energy consumption is based on the AAO process principle, saves the sludge reflux and nitrifying liquid reflux device, and is suitable for sewage treatment in rural areas.
3. The rural sewage treatment device with low energy consumption adopts a settling zone, a sludge concentration zone and a sludge reflux zone which are arranged in a lower mode, an anoxic zone is arranged in a lower mode, a water inlet is arranged at the upper end of the anoxic zone, gravity is fully utilized as part of power of hydraulic conveying, and the sludge and water falling to the lower end of the anaerobic zone are sucked into an aerobic zone by utilizing gas stripping, so that hydraulic turning is reduced as much as possible, and a circular overall path with one rise and one drop is basically realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic cross-sectional view taken along the direction A-A in fig. 1.
In the figure: 1. an aerobic zone; 2. a diversion area; 3. an anoxic zone; 4. an anaerobic zone; 5. a precipitation zone; 6. a sludge concentration zone; 7. a clear water zone; 8. a water collection tank; 9. a sludge recirculation zone; 10. a gas stripping vent pipe; 11. an aeration pipe; 12. a blower; 13. a water inlet distribution pipe; 14. a mud pipe; 16. an upper circular seam; 17. a lower circular seam; 18. circular seams; 20. a sludge return port; 21. a stripping elevation zone; 22. and (5) a vent pipe.
Detailed Description
As shown in figure 1, the rural sewage treatment device with low energy consumption can be arranged as overground equipment, or can be wholly or partially buried underground as required, and comprises an anoxic zone 3, an anaerobic zone 4, an aerobic zone 1, a gas lifting zone 21, a sedimentation zone 5 and a sludge concentration zone 6 which are sequentially communicated, wherein the aerobic zone is subjected to the processes of oxidation of organic pollutants, ammonification of organic nitrogen, nitration and aerobic excessive phosphorus absorption; the aerobic zone 1 is positioned in the middle of the sewage treatment device, an aeration pipe 11 is arranged below the aerobic zone 1, and the air inlet end of the aeration pipe extends to the outside of the sewage treatment device and is connected with a blower 12; the middle part of the aerobic zone 1 is fixedly provided with a gas stripping ventilation pipe 10, the lower end of the gas stripping ventilation pipe 10 extends to the upper part of the aeration pipe 11 and is opposite to a plurality of gas outlets of the aeration pipe 11, a gas stripping rising zone 21 is arranged above the aerobic zone 1, the upper end of the gas stripping ventilation pipe 10 extends into the gas stripping rising zone 21, the periphery of the gas stripping rising zone 21 is provided with a diversion zone 2, the gas stripping rising zone 21 is communicated with the upper part of the diversion zone 2, the periphery of the diversion zone 2 is provided with a sedimentation zone 5, an anoxic zone 3 and an anaerobic zone 4 are arranged at the periphery of the aerobic zone 1, the sedimentation zone 5 is positioned above the anoxic zone 3, the anaerobic zone 4 is positioned below the anoxic zone 3, an upper circular seam 16 and a lower circular seam 17 are arranged at the lower part of the diversion zone 2 and are respectively communicated with the lower part of the sedimentation zone 5 and the upper end of the anoxic zone 3, a sloping plate is arranged between the upper circular seam 16 and the lower circular seam 17 and is used for separating the sedimentation zone 5 from the anoxic zone 3, and part of sewage entering the diversion zone 2 flows into the sedimentation zone 5 to be separated, and part of sewage is refluxed to the anoxic zone 3; the sludge concentration zone 6 is also arranged below the sedimentation zone 5 and is positioned at the periphery of the anoxic zone 3, a sludge reflux zone 9 is also arranged between the sludge concentration zone 6 and the anoxic zone 3, the upper end of the sludge reflux zone is communicated with the lower end of the sedimentation zone 5, the lower end of the sludge reflux zone is provided with a sludge reflux port 20 for being communicated with the anaerobic zone 4, a part of sludge sunk in the sedimentation zone enters the sludge concentration zone 6 to be concentrated and then discharged, and the rest of sludge enters the sludge reflux zone 9 and enters the anaerobic zone 4 through the sludge reflux port 20 to maintain a certain sludge concentration in the anaerobic zone 4; the lower end of the anaerobic zone 4 is close to one side of the aerobic zone 1 and is provided with a circular seam 18 so as to be communicated with the anaerobic zone, and after the microorganisms in the anaerobic zone 4 release phosphorus through anaerobism, the microorganisms flow into the aerobic zone 1 through the bottom circular seam 18 under the action of stripping to realize the process of aerobic excessive phosphorus absorption; the sewage treatment device is also provided with a water inlet distribution pipe 13 and a sludge discharge pipe 14, wherein a water outlet of the water inlet distribution pipe 13 is arranged at the upper end of the anoxic zone 3, the pretreated water inlet and the reflux sewage are mixed together to enter the anoxic zone 3 for denitrification and denitrification, the denitrified sewage enters the anaerobic zone 4, BOD in the water inlet provides a carbon source for denitrification, and a sludge inlet of the sludge discharge pipe 14 is arranged at the lower end of the sludge concentration zone 6.
The settling zone 5 may further divide the upper portion into a clear water zone 7, and referring to fig. 1, a water collecting tank 8 is fixedly arranged on the inner side of the upper portion for collecting clear water for discharge, and specifically, a water outlet pipe may be connected to the outer side of the water collecting tank 8.
In a preferred embodiment, the sewage treatment apparatus is closed, and a vent pipe 22 is disposed above the air lifting area 21 for exhausting (mainly aeration of the aeration pipe 11), and referring specifically to fig. 1, the vent pipe 22 may be in an inverted "J" shape, so as to prevent rainwater from being poured in.
The check plates can be arranged at the upper annular seam 16, the lower annular seam 17 and the annular seam 18 to prevent backflow, the principle of the check plates is similar to that of a one-way valve, reverse fluid can push the check plates to close, and even the check plates can be naturally and vertically shielded under the action of gravity to open in one direction only under the action of hydraulic force.
Referring to FIG. 2, the wastewater treatment apparatus is preferably of a concentric circular or concentric polygonal annular configuration; further, in order to distribute water uniformly and simultaneously to make the utilization rate of the annular device as close as possible, the water inlet distribution pipe 13 may adopt the following structure: the device comprises a water inlet pipe, an annular water distribution pipe and a plurality of water distribution branch pipes which are sequentially connected, wherein the plurality of water distribution branch pipes are distributed on the annular water distribution pipe in an annular array, a plurality of water outlets are formed in the lower end of the water distribution branch pipes, and the annular water distribution pipe is arranged at the upper end of an anoxic zone 3 in a concentric manner; in addition, the mud discharging pipe 14 preferably comprises a circular collecting pipe and a mud discharging pipe, wherein the circular collecting pipe is arranged at the lower end of the circular mud concentration zone 6, and a plurality of mud inlets are formed at the upper end of the circular collecting pipe; the inclined plates between the upper annular gap 16 and the lower annular gap 17 can also be provided as round table inclined surfaces to help the settled sludge slide to the sludge concentration zone 6 and the sludge return zone 9.
In order to increase the sludge concentration and improve the treatment efficiency, the filler is suspended in the aerobic zone 1, the filler filling ratio is calculated and determined according to rural water quality to be installed, or suspended filler which is easy to fluidize is adopted, and an interception net is adopted to prevent the filler from losing when the suspended filler is adopted; the anoxic zone 3 may also be suspended or suspended with packing as desired.
The above is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be covered by the present utility model. Therefore, the protection scope of the present utility model should be defined by the claims.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (8)
1. A rural sewage treatment plant of low energy consumption, its characterized in that: comprises an anoxic zone (3), an anaerobic zone (4), an aerobic zone (1), a gas stripping rising zone (21), a sedimentation zone (5) and a sludge concentration zone (6) which are communicated in sequence; the aerobic zone (1) is positioned in the middle of the sewage treatment device, an aeration pipe (11) is arranged below the aerobic zone (1), and the air inlet end of the aeration pipe extends to the outside of the sewage treatment device and is connected with a blower (12); the middle part of the aerobic zone (1) is fixedly provided with a gas stripping vent pipe (10), the lower end of the gas stripping vent pipe extends to the upper part of the aeration pipe (11) and is opposite to a plurality of gas outlets of the aeration pipe (11), a gas stripping rising zone (21) is arranged above the aerobic zone (1), the upper end of the gas stripping vent pipe (10) extends into the gas stripping rising zone (21), the periphery of the gas stripping rising zone (21) is provided with a diversion zone (2), the gas stripping rising zone (21) is communicated with the upper part of the diversion zone (2), the periphery of the diversion zone (2) is provided with a sedimentation zone (5), an anoxic zone (3) and an anaerobic zone (4) are arranged on the periphery of the aerobic zone (1), the sedimentation zone (5) is arranged above the anoxic zone (3), the anaerobic zone (4) is arranged below the anoxic zone (3), an upper circular seam (16) and a lower circular seam (17) are formed in the lower part of the diversion zone (2) and are respectively communicated with the lower part of the sedimentation zone (5), and the periphery of the diversion zone (2) is arranged between the upper circular seam (16) and the lower circular seam (17) and the anoxic zone (3) are used for separating the anoxic zone; the sludge concentration zone (6) is also arranged below the sedimentation zone (5) and is positioned at the periphery of the anoxic zone (3), a sludge reflux zone (9) is also arranged between the sludge concentration zone (6) and the anoxic zone (3), the upper end of the sludge reflux zone is communicated with the lower end of the sedimentation zone (5), and the lower end of the sludge reflux zone is provided with a sludge reflux port (20) for being communicated with the anaerobic zone (4); one side of the lower end of the anaerobic zone (4) close to the aerobic zone (1) is provided with a circular seam (18) so as to be communicated with the anaerobic zone; the sewage treatment device is also provided with a water inlet distribution pipe (13) and a sludge discharge pipe (14), wherein a water outlet of the water inlet distribution pipe (13) is arranged at the upper end of the anoxic zone (3), and a sludge inlet of the sludge discharge pipe (14) is arranged at the lower end of the sludge concentration zone (6).
2. The low-energy-consumption rural sewage treatment device according to claim 1, wherein: the upper part of the sedimentation zone (5) is a clear water zone (7), and a water collecting tank (8) is fixedly arranged on the inner side of the upper part of the sedimentation zone and used for collecting clear water and discharging.
3. The low-energy-consumption rural sewage treatment device according to claim 1, wherein: the sewage treatment device is closed, and a vent pipe (22) is arranged above the gas lifting area (21) and is used for exhausting.
4. The low-energy-consumption rural sewage treatment device according to claim 1, wherein: the upper annular seam (16), the lower annular seam (17) and the annular seam (18) are provided with check plates for preventing backflow.
5. The low-energy-consumption rural sewage treatment device according to claim 1, wherein: the sewage treatment device is of a concentric circular or concentric polygonal annular structure.
6. The low-energy-consumption rural sewage treatment device according to claim 5, wherein: the water inlet distribution pipe (13) comprises a water inlet pipe, an annular distribution pipe and a plurality of distribution branch pipes which are sequentially connected, the distribution branch pipes are distributed on the annular distribution pipe in an annular array, and a plurality of water outlets are formed in the lower ends of the distribution branch pipes.
7. The low-energy-consumption rural sewage treatment device according to claim 5, wherein: the mud discharging pipe (14) comprises a circular collecting pipe and a mud discharging pipe, and a plurality of mud inlets are formed in the upper end of the circular collecting pipe.
8. The low-energy-consumption rural sewage treatment device according to claim 1, wherein: the aerobic zone (1) is suspended or suspended with filler, or the aerobic zone (1) and the anoxic zone (3) are suspended or suspended with filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306932.3U CN219156733U (en) | 2023-02-24 | 2023-02-24 | Rural sewage treatment plant of low energy consumption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306932.3U CN219156733U (en) | 2023-02-24 | 2023-02-24 | Rural sewage treatment plant of low energy consumption |
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| Publication Number | Publication Date |
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| CN219156733U true CN219156733U (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320306932.3U Active CN219156733U (en) | 2023-02-24 | 2023-02-24 | Rural sewage treatment plant of low energy consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116282673A (en) * | 2023-02-24 | 2023-06-23 | 中冶华天工程技术有限公司 | Novel rural sewage treatment integration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116282673A (en) * | 2023-02-24 | 2023-06-23 | 中冶华天工程技术有限公司 | Novel rural sewage treatment integration device |
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