CN219031942U - Energy-saving sewage treatment deodorizing device - Google Patents
Energy-saving sewage treatment deodorizing device Download PDFInfo
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- CN219031942U CN219031942U CN202223287402.3U CN202223287402U CN219031942U CN 219031942 U CN219031942 U CN 219031942U CN 202223287402 U CN202223287402 U CN 202223287402U CN 219031942 U CN219031942 U CN 219031942U
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Abstract
The utility model relates to the technical field of sewage treatment and discloses an energy-saving sewage treatment deodorization device. The sewage treatment deodorizing device of the present utility model comprises: the system comprises a grid tank, an adjusting tank, a primary sedimentation tank, a pre-acidification tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a sludge concentration tank, a sludge dehydrator and an odor collection pipeline, wherein the primary sedimentation tank, the anaerobic tank and the secondary sedimentation tank are connected with the sludge concentration tank through pipelines, the sludge concentration tank is connected with the sludge dehydrator through pipelines, the grid tank, the adjusting tank, the primary sedimentation tank, the pre-acidification tank, the anaerobic tank, the sludge concentration tank and the sludge dehydrator are capped and sealed, and are connected with the odor collection pipeline through pipelines, and the odor collection pipeline extends into the aerobic tank. The sewage treatment deodorizing device provided by the utility model has the advantages that the odor is sucked into the aerobic tank through the deodorizing fan, the odor in the waste gas is eliminated through adsorption treatment of the activated sludge, and then the odor is discharged into the atmosphere, so that the influence of the odor on the environment and human bodies is eliminated, and the environment and the health of the human bodies are protected.
Description
Technical Field
The embodiment of the utility model relates to the technical field of sewage treatment, in particular to an energy-saving sewage treatment deodorizing device.
Background
The sewage treatment is an important ring for environmental protection, and can prevent the pollution of the environment after the discharge of domestic sewage and industrial sewage.
At present, when sewage is treated in a sewage station, odor composed of organic odor source substances such as ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine and the like can be emitted, and when the odor is diffused in the air, mechanical equipment can be corroded.
Therefore, how to efficiently treat the malodorous gas of the sewage treatment plant, reduce or eliminate the influence of malodor on the surrounding environment, ensure the standard emission of the treated gas, and become the urgent problem to be solved in the current industry.
Disclosure of Invention
The utility model aims to provide an energy-saving sewage treatment deodorizing device so as to solve the problems in the background technology.
The embodiment of the utility model provides an energy-saving sewage treatment deodorizing device, which comprises: a grid tank, an adjusting tank, a primary sedimentation tank, a pre-acidification tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a sludge concentration tank, a sludge dehydrator and an odor collecting pipeline;
the grid pond, the regulating pond, the primary sedimentation pond, the pre-acidification pond, the anaerobic pond, the aerobic pond and the secondary sedimentation pond are sequentially connected through a first pipeline;
the grid pool is provided with a water inlet pipe which is used for being connected with a sewage mechanism;
the secondary sedimentation tank is provided with a water outlet pipe which is used for being connected with the collecting mechanism;
the primary sedimentation tank and the anaerobic tank are connected with the sludge concentration tank through a second pipeline, and the secondary sedimentation tank is connected with the sludge concentration tank through a third pipeline;
the sludge concentration tank is connected with the sludge dehydrator through a fourth pipeline;
the second pipeline, the third pipeline and the fourth pipeline are all provided with sludge pumps;
the grid pool, the regulating pool, the primary sedimentation pool, the pre-acidification pool, the anaerobic pool, the sludge concentration pool and the sludge dewatering machine are all capped and sealed, and are respectively connected with the inlet end of the odor collecting pipeline through connecting pipelines, and the outlet end of the odor collecting pipeline extends into the aerobic pool;
the odor collection pipeline is provided with a deodorizing fan, and the deodorizing fan is used for sucking odor into the aerobic tank.
Based on the scheme, the energy-saving sewage treatment deodorizing device is characterized in that a grid pond, a regulating pond, a primary sedimentation pond, a pre-acidification pond, an anaerobic pond, an aerobic pond, a secondary sedimentation pond, a sludge concentration pond, a sludge dehydrator and an odor collection pipeline are arranged, the primary sedimentation pond, the anaerobic pond and the secondary sedimentation pond are connected with the sludge concentration pond through pipelines, the sludge concentration pond is connected with the sludge dehydrator through pipelines, the grid pond, the regulating pond, the primary sedimentation pond, the pre-acidification pond, the anaerobic pond, the sludge concentration pond and the sludge dehydrator are all capped and sealed and are respectively connected with the odor collection pipeline, the outlet end of the odor collection pipeline extends into the aerobic pond, and the odor collection pipeline is provided with a deodorizing fan. The energy-saving sewage treatment deodorizing device provided by the utility model has the advantages that the odor in the grid tank, the regulating tank, the primary sedimentation tank, the pre-acidification tank, the anaerobic tank, the sludge concentration tank and the sludge dewatering machine is sucked into the aerobic tank through the deodorizing fan, the activated sludge in the aerobic tank is used for adsorbing the odor, the odor in the waste gas is eliminated, and then the waste gas is discharged into the atmosphere, so that the influence of the odor on the environment and the human body is eliminated, and the environment and the health of the human body are protected.
In one possible implementation, the method further includes: a fifth pipeline;
one end of the fifth pipeline is connected with the third pipeline, and the other end of the fifth pipeline is connected with the aerobic tank and is used for enabling sludge in the secondary sedimentation tank to flow back to the aerobic tank.
In one possible scheme, a sludge control mechanism is arranged on the fifth pipeline and is used for controlling the reflux amount of the sludge.
In one possible implementation, the method further includes: a jet aeration mechanism;
the jet aeration mechanism comprises: the aeration pipe, the aeration spray head, the circulating pipeline and the circulating water pump;
the aeration pipe is horizontally arranged in the aerobic tank;
the aeration nozzles are arranged in a plurality, and the aeration nozzles are arranged on the aeration pipe at intervals;
one end of the circulating pipeline is connected with the aeration pipe, the other end of the circulating pipeline is connected with the aerobic tank, and the circulating water pump is arranged on the circulating pipeline and is used for sucking sewage into the aeration pipe.
In one possible solution, the outlet end of the odor collection line is connected to the aeration tube.
In one possible implementation, the method further includes: the plant liquid spraying system, a spraying pipeline and a plurality of nozzles;
the plant liquid spraying system is arranged at one side of the aerobic tank;
the spraying pipeline is connected with the plant liquid spraying system, and a plurality of nozzles are arranged on the spraying pipeline and are positioned above the anaerobic tank.
In one possible embodiment, the spray direction of the spray nozzle is downward.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of an energy-saving sewage treatment deodorizing device according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 in an embodiment of the utility model;
fig. 3 is a schematic view of a jet aeration mechanism in an embodiment of the present utility model.
Reference numerals in the drawings:
11. a grille pool; 12. an adjusting tank; 13. a primary sedimentation tank; 14. a pre-acidification tank; 15. an anaerobic tank; 16. an aerobic tank; 17. a secondary sedimentation tank; 18. a sludge concentration tank; 19. a sludge dewatering machine; 2. an odor collection line; 31. a first pipeline; 32. a second pipeline; 33. a third pipeline; 34. a fourth pipeline; 35. a connection branch; 21. a deodorizing fan; 36. a fifth pipeline; 4. a sludge control mechanism; 5. a jet aeration mechanism; 51. an aeration pipe; 52. an aeration spray head; 53. a circulation line; 54. a circulating water pump; 61. a plant liquid spraying system; 62. a spray pipeline; 63. and (3) a nozzle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; either directly, or indirectly, through intermediaries, may be in communication with each other, or may be in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The technical scheme of the utility model is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
As described in the background art of the present application, at present, sewage stands in the process of treating sewage, an odor composed of organic odor source substances such as ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine and the like is emitted, and when the odor diffuses in the air, the odor corrodes mechanical equipment, and affects the health of a human body and the environment of the sewage stands.
Therefore, how to efficiently treat the malodorous gas in the sewage treatment plant, reduce or eliminate the influence of the malodorous gas on the surrounding environment, ensure the standard emission of the treated gas, and become the urgent problem to be solved in the current industry.
In order to solve the above problems, the present inventors propose a technical solution of the present application, and specific embodiments are as follows:
fig. 1 is a schematic view of an energy-saving sewage treatment deodorizing device according to an embodiment of the present utility model, fig. 2 is a partially enlarged view of fig. 1 according to an embodiment of the present utility model, and fig. 3 is a schematic view of a jet aeration mechanism according to an embodiment of the present utility model. As shown in fig. 1 to 3, the energy-saving sewage treatment deodorizing device of the present embodiment includes: a grille tank 11, a regulating tank 12, a primary sedimentation tank 13, a pre-acidification tank 14, an anaerobic tank 15, an aerobic tank 16, a secondary sedimentation tank 17, a sludge concentration tank 18, a sludge dewatering machine 19 and an odor collection pipeline 2.
The grid tank 11, the regulating tank 12, the primary sedimentation tank 13, the pre-acidification tank 14, the anaerobic tank 15, the aerobic tank 16 and the secondary sedimentation tank 17 are sequentially arranged at intervals, and the grid tank 11, the regulating tank 12, the primary sedimentation tank 13, the pre-acidification tank 14, the anaerobic tank 15, the aerobic tank 16 and the secondary sedimentation tank 17 are sequentially connected with each other through a first pipeline 31.
One side of the grille pool 11 is provided with a water inlet pipe, and the water inlet pipe of the grille pool 11 is connected with a sewage mechanism.
A water outlet pipe is arranged at one side of the secondary sedimentation tank 17, and the water outlet pipe of the secondary sedimentation tank 17 is connected with a sewage collecting mechanism. The sewage enters the grille pool 11 through the water inlet pipe, sequentially flows through the treatment pools, finally flows out to the sewage collecting mechanism through the water outlet pipe of the secondary sedimentation pool 17, and finishes the treatment of the sewage.
The sludge concentration tank 18 is arranged on one side of the aerobic tank 16, the primary sedimentation tank 13 and the anaerobic tank 15 are distributed and connected with the sludge concentration tank 18 through a second pipeline 32, the secondary sedimentation tank 17 is connected with the sludge concentration tank 18 through a third pipeline 33, and sludge pumps are arranged on the second pipeline 32 and the third pipeline 33. When the sludge pump is turned on, the primary sludge in the primary sedimentation tank 13, the anaerobic sludge in the anaerobic tank 15, and the activated sludge in the secondary sedimentation tank 17 are pumped into the sludge concentration tank 18, and the sludge is dewatered and concentrated.
The sludge dewatering machine 19 is arranged at one side of the sludge thickening tank 18, the sludge dewatering machine 19 is connected with the sludge thickening tank 18 through a fourth pipeline 34, a sludge pump is also arranged on the fourth pipeline 34, the thickened sludge is sucked into the sludge dewatering machine 19, and the sludge is dewatered by the sludge dewatering machine 19 and then is transported outwards.
The grille pool 11, the regulating pool 12, the primary sedimentation pool 13, the pre-acidification pool 14, the anaerobic pool 15 and the sludge concentration pool 18 are all covered, so that the treatment pools are in a sealed state, and the sealed grille pool 11, the regulating pool 12, the primary sedimentation pool 13, the pre-acidification pool 14, the anaerobic pool 15 and the sludge concentration pool 18 are respectively connected with the inlet end of the odor collection pipeline 2 through a connecting branch 35. The sludge dewatering machine 19 is arranged in the closed chamber, the closed chamber of the sludge dewatering machine 19 is also connected with the inlet end of the odor collecting pipeline 2 through the connecting branch 35, and the outlet end of the odor collecting pipeline 2 extends into the aerobic tank 16.
The odor collection pipeline 2 is provided with a deodorizing fan 21, and the deodorizing fan 21 sucks the odor in the grille pool 11, the regulating pool 12, the primary sedimentation pool 13, the pre-acidification pool 14, the anaerobic pool 15, the sludge concentration pool 18 and the sludge dewatering machine 19 into the aerobic pool 16, and the odor is discharged into the atmosphere after being adsorbed by activated sludge in the aerobic pool 16.
And each pipeline is provided with a control valve, and the on-off of each pipeline is controlled through the control valve.
In this embodiment, all add the airtight treatment of covering in grid pond, equalizing basin, primary sedimentation tank, pre-acidification tank, anaerobic tank and mud concentrator, the sludge dewaterer sets up in the sealed chamber, and grid pond, equalizing basin, primary sedimentation tank, pre-acidification tank, anaerobic tank, mud concentrator and sludge dewaterer are connected with the foul smell through the connection branch road, and the other end of foul smell collection pipeline stretches into in the good oxygen pond. The odor in the grid pond, the regulating pond, the primary sedimentation pond, the pre-acidification pond, the anaerobic pond, the sludge concentration pond and the sludge dewatering machine is sucked into the aerobic pond through the deodorizing fan, the odor is adsorbed and treated through the activated sludge in the aerobic pond, the odor in the waste gas is eliminated, and then the waste gas is discharged into the atmosphere.
Through the above, it is difficult to find that the energy-saving sewage treatment deodorizing device of this embodiment, through setting up grid pond, equalizing basin, primary sedimentation tank, pre-acidification tank, anaerobic tank, good oxygen pond, secondary sedimentation tank, sludge concentration tank, sludge dewaterer and foul smell collecting pipeline, primary sedimentation tank, anaerobic tank and secondary sedimentation tank pass through the pipeline and are connected with sludge concentration tank, sludge concentration tank passes through the pipeline and is connected with sludge dewaterer, grid pond, equalizing basin, primary sedimentation tank, pre-acidification tank, anaerobic tank, sludge concentration tank and sludge dewaterer all cover and seal, and be connected with foul smell collecting pipeline respectively, the outlet end of foul smell collecting pipeline stretches into in the good oxygen pond, foul smell collecting pipeline is equipped with deodorant fan. The energy-saving sewage treatment deodorizing device of the embodiment pumps the odor in the grille pool, the regulating pool, the primary sedimentation pool, the pre-acidification pool, the anaerobic pool, the sludge concentration pool and the sludge dewatering machine into the aerobic pool through the deodorizing fan, and the activated sludge in the aerobic pool adsorbs the odor to eliminate the odor in the waste gas, and then the odor is discharged into the atmosphere, so that the influence of the odor on the environment and the human body is eliminated, and the environment and the health of the human body are protected.
Optionally, the energy-saving sewage treatment deodorization device in this embodiment further includes: and a fifth line 36.
One end of the fifth pipeline 36 is connected with the third pipeline 33, the other end of the fifth pipeline 36 is connected with the aerobic tank 16, and a sludge pump is also arranged on the fifth pipeline 36, so that part of the activated sludge in the secondary sedimentation tank 17 is pumped back into the aerobic tank 16, and the rest of the activated sludge is pumped into the sludge concentration tank 18.
Further, in the energy-saving sewage treatment deodorizing device in this embodiment, the fifth pipeline 36 is provided with a sludge control mechanism 4, and the sludge control mechanism 4 is used for controlling the reflux amount of the activated sludge flowing back into the aerobic tank 16, so as to ensure the adsorption treatment effect of the aerobic tank on the odor.
Further, as shown in fig. 3, the energy-saving sewage treatment and deodorization device in this embodiment further includes: jet aeration mechanism 5.
The jet aeration mechanism 5 includes: aeration pipe 51, aeration shower nozzle 52, circulation pipeline 53 and circulating water pump 54.
The aeration pipe 51 is horizontally arranged in the aerobic tank 16, and the aeration pipe 51 is arranged at the bottom end of the aerobic tank 16 and is not contacted with the bottom of the aerobic tank 16.
The aeration spray heads 52 are provided in plurality, the aeration spray heads 52 are arranged on the aeration pipe 51 at intervals, and the spraying direction of the aeration spray heads 52 is vertical upwards.
One end of a circulating pipeline 53 is connected with the aeration pipe 51, the other end of the circulating pipeline 53 is connected with the bottom of the aerobic tank 16, and a circulating water pump 54 is arranged on the circulating pipeline 53. When the circulation water pump 54 is turned on, the sewage in the aerobic tank 16 is sucked into the aeration pipe 51 and sprayed out from the aeration nozzle 52.
In the embodiment, the aerobic tank adopts a jet aeration mode, so that the activated sludge is better contacted with the odor to adsorb the odor in the waste gas.
Further, in the energy-saving sewage treatment deodorizing device in this embodiment, the odor collecting pipe 2 extends into the aerobic tank 16, and the outlet end of the odor collecting pipe 2 is connected and communicated with the aeration pipe 51.
In this embodiment, the export and the aeration pipe connection of odor collection pipeline, the deodorization fan is sent into the aeration pipe with the foul smell, and supplementary partial aeration volume dilutes the foul smell concentration simultaneously, makes foul smell and activated sludge fully contact through the aeration shower nozzle, improves treatment efficiency.
Further, the energy-saving sewage treatment deodorization device in this embodiment further includes: a plant liquid spray system 61, a spray pipeline 62 and a nozzle 63.
The plant liquid spraying system 61 is arranged at one side of the aerobic tank 16, one end of the spraying pipeline 62 is connected with the plant liquid spraying system 61, and the other end of the spraying pipeline 62 is closed.
The nozzles 63 are arranged in a plurality, the nozzles 63 are arranged on the spraying pipeline 62 at intervals, and the nozzles 63 are arranged above the aerobic tank 16.
In the embodiment, the plant liquid is sprayed into mist through the plant liquid spraying system by the nozzle, and is diffused into liquid drops in the area space above the aerobic tank, the surfaces of the liquid drops effectively adsorb odor molecules in the air, and the malodorous smell in the waste gas is effectively removed in an adsorption and dissolution mode through the catalytic oxygen reaction, acid-base reaction, lipidation reaction and the like of the plant liquid and the malodorous odor gas, so that the odor in the exhaust gas is eliminated, and the exhaust gas is more environment-friendly.
Further, in the energy-saving sewage treatment deodorizing device in this embodiment, the spraying direction of the plurality of nozzles 63 is downward, so that the plant liquid is fully contacted with the discharged gas, and the deodorizing effect is better.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact between the first feature and the second feature, or an indirect contact between the first feature and the second feature through an intervening medium.
Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.
In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. An energy-saving sewage treatment deodorizing device, characterized by comprising: a grid tank, an adjusting tank, a primary sedimentation tank, a pre-acidification tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a sludge concentration tank, a sludge dehydrator and an odor collecting pipeline;
the grid pond, the regulating pond, the primary sedimentation pond, the pre-acidification pond, the anaerobic pond, the aerobic pond and the secondary sedimentation pond are sequentially connected through a first pipeline;
the grid pool is provided with a water inlet pipe which is used for being connected with a sewage mechanism;
the secondary sedimentation tank is provided with a water outlet pipe which is used for being connected with the collecting mechanism;
the primary sedimentation tank and the anaerobic tank are connected with the sludge concentration tank through a second pipeline, and the secondary sedimentation tank is connected with the sludge concentration tank through a third pipeline;
the sludge concentration tank is connected with the sludge dehydrator through a fourth pipeline;
the second pipeline, the third pipeline and the fourth pipeline are all provided with sludge pumps;
the grid pool, the regulating pool, the primary sedimentation pool, the pre-acidification pool, the anaerobic pool, the sludge concentration pool and the sludge dewatering machine are all capped and sealed, and are respectively connected with the inlet end of the odor collecting pipeline through connecting pipelines, and the outlet end of the odor collecting pipeline extends into the aerobic pool;
the odor collection pipeline is provided with a deodorizing fan, and the deodorizing fan is used for sucking odor into the aerobic tank.
2. The energy-saving sewage treatment and deodorization device according to claim 1, further comprising: a fifth pipeline;
one end of the fifth pipeline is connected with the third pipeline, and the other end of the fifth pipeline is connected with the aerobic tank and is used for enabling sludge in the secondary sedimentation tank to flow back to the aerobic tank.
3. The energy-saving sewage treatment and deodorization device according to claim 2, wherein the fifth pipeline is provided with a sludge control mechanism for controlling the reflux amount of the sludge.
4. The energy-saving sewage treatment and deodorization device according to claim 2, further comprising: a jet aeration mechanism;
the jet aeration mechanism comprises: the aeration pipe, the aeration spray head, the circulating pipeline and the circulating water pump;
the aeration pipe is horizontally arranged in the aerobic tank;
the aeration nozzles are arranged in a plurality, and the aeration nozzles are arranged on the aeration pipe at intervals;
one end of the circulating pipeline is connected with the aeration pipe, the other end of the circulating pipeline is connected with the aerobic tank, and the circulating water pump is arranged on the circulating pipeline and is used for sucking sewage into the aeration pipe.
5. The energy-saving sewage treatment and deodorization device according to claim 4, wherein the outlet end of the odor collection pipe is connected with the aeration pipe.
6. The energy-saving sewage treatment and deodorization device according to claim 5, further comprising: the plant liquid spraying system, a spraying pipeline and a plurality of nozzles;
the plant liquid spraying system is arranged at one side of the aerobic tank;
the spraying pipeline is connected with the plant liquid spraying system, and a plurality of nozzles are arranged on the spraying pipeline and are positioned above the anaerobic tank.
7. The energy-saving type sewage treatment and deodorization device according to claim 6, wherein the spray direction of the spray nozzle is downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223287402.3U CN219031942U (en) | 2022-12-08 | 2022-12-08 | Energy-saving sewage treatment deodorizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223287402.3U CN219031942U (en) | 2022-12-08 | 2022-12-08 | Energy-saving sewage treatment deodorizing device |
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| CN219031942U true CN219031942U (en) | 2023-05-16 |
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| CN202223287402.3U Active CN219031942U (en) | 2022-12-08 | 2022-12-08 | Energy-saving sewage treatment deodorizing device |
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