CN219603361U - Horizontal tank for integrated sewage treatment - Google Patents
Horizontal tank for integrated sewage treatment Download PDFInfo
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- CN219603361U CN219603361U CN202320266268.4U CN202320266268U CN219603361U CN 219603361 U CN219603361 U CN 219603361U CN 202320266268 U CN202320266268 U CN 202320266268U CN 219603361 U CN219603361 U CN 219603361U
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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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Abstract
The utility model belongs to the technical field of sewage treatment, and particularly relates to a horizontal tank for integrated sewage treatment, which comprises an anaerobic sludge storage tank, an anoxic tank, an aerobic tank, an oxygen-removing tank, a secondary sedimentation tank, a water inlet pipe and a self-cleaning filter, wherein a pulse gas stripping pump is arranged in the anaerobic sludge storage tank, a perforated sludge discharge pipe is fixedly connected to an inlet of the pulse gas stripping pump, a pulse stirrer and a nitrifying liquid reflux port are arranged in the anoxic tank, a microporous aerator is arranged at the bottom end of the aerobic tank, a gas distributor of the gas stripping pump is arranged in the oxygen-removing tank, a communication hole is formed in the bottom end of the oxygen-removing tank, and a water collecting pipe is fixedly connected to the top end of the secondary sedimentation tank. According to the utility model, the anaerobic sludge storage tank, the anoxic tank and the oxygen eliminating tank are all stirred by pulse aeration, and one mechanical stirring device is not arranged in the tank, so that the probability of mechanical failure of sewage treatment equipment is reduced.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a horizontal tank for integrated sewage treatment.
Background
An integrated sewage treatment system (AO process) is a denitrification process which is widely adopted at present, and belongs to an activated sludge denitrification system. Is generally composed of an anoxic tank, an aerobic tank, a sedimentation tank and the like. In the AO system, denitrification, nitrification and BOD removal are respectively carried out in two different reaction tanks, and raw sewage, return sludge and nitrified liquid at the tail end of an aerobic tank simultaneously enter an anoxic tank at the head of the system, and nitrate nitrogen in water discharged from the aerobic tank is denitrified by utilizing a carbon source in water.
The integrated sewage treatment equipment is mainly used in areas without centralized drainage pipe networks, and belongs to scattered on-site sewage treatment equipment. At present, the appearance of integrated sewage treatment equipment produced by most factories is a rectangular box body. The rectangular box body has poor stress condition, is easy to deform, needs to be reinforced, and has complex processing and high manufacturing cost.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the integrated horizontal tank for sewage treatment, and solves the existing problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a horizontal tank that integration sewage treatment used, includes anaerobic sludge storage pond, anoxic tank, good oxygen pond, oxygen tank, two sedimentation tanks, inlet tube and self-cleaning filter, be provided with the pulse air lift pump in the anaerobic sludge storage pond, the entrance fixedly connected with perforation mud pipe of pulse air lift pump, the inside of anoxic tank is provided with pulse agitator and nitrifying liquid reflux mouth, the bottom of good oxygen pond is provided with the micropore aerator, the inside of oxygen tank is provided with air lift pump gas distributor, the communicating hole has been seted up to the bottom of oxygen tank, the inside top fixedly connected with collector pipe of two sedimentation tanks, the one end fixedly connected with outlet pipe of collector pipe, the inside of anoxic tank is provided with the communicating pipe, the top of oxygen tank is provided with the gas-liquid separation case, the bottom fixedly connected with gas lift pipe of gas-liquid separation case, the side of gas lift pipe is provided with overflow funnel.
As a preferable technical scheme of the utility model, the water inlet pipe is connected with the self-cleaning filter, and the water outlet of the self-cleaning filter is connected with the inlet of the anaerobic sludge storage tank.
As a preferable technical scheme of the utility model, the water outlet of the anaerobic sludge storage tank is connected with the water inlet of the anoxic tank, the water outlet of the anoxic tank is connected with the inlet of the aerobic tank, the water outlet of the aerobic tank is connected with the water inlet of the oxygen eliminating tank, the water outlet of the oxygen eliminating tank is simultaneously connected with the inlet of the secondary sedimentation tank and the inlet of the anoxic tank, and sludge at the bottom of the secondary sedimentation tank flows back into the anaerobic sludge storage tank.
As a preferable technical scheme of the utility model, the top of the anoxic tank is respectively provided with a manhole and an exhaust valve.
As a preferable technical scheme of the utility model, the bottom end of the oxygen eliminating pool is also provided with a pulse stirrer.
As a preferred embodiment of the present utility model, the micro-pore aerator is connected to a blower, and the blower is disposed in a room on the ground.
As a preferable technical scheme of the utility model, the perforated sludge discharge pipe is positioned at the inner bottom end of the secondary sedimentation tank.
Compared with the prior art, the utility model provides the horizontal tank for integrated sewage treatment, which has the following beneficial effects:
1. this horizontal tank that integration sewage treatment used adopts integration jar structure, according to structural mechanics theory, the circular jar body stress state is best, and the pool wall only receives the pulling force effect, does not have moment of flexure, and integration jar body can be processed with the sheet metal, has practiced thrift equipment material. Meanwhile, the processing technology is simple, the steel plate is bent into a circular tube by using a tube bending machine in the tank body forming process, the sealing heads are welded at the two ends of the circular tube, and repeated welding reinforcement of the tank body is not needed.
2. The horizontal tank for integrated sewage treatment has the advantages that the anaerobic mud storage tank, the anoxic tank and the oxygen eliminating tank are all stirred by pulse aeration. There is no mechanical stirring device in the tank, which reduces the probability of mechanical failure of the sewage treatment device.
3. The horizontal tank for integrated sewage treatment adopts the pulse gas stripping pump for nitrifying liquid reflux and sludge reflux, replaces the traditional centrifugal pump, reduces equipment cost and reduces mechanical faults.
4. This horizontal jar that integration sewage treatment used, anaerobic tank and storage mud pond are integrated into an organic whole and become anaerobic storage mud pond, effectively improve anaerobic tank play water carbon source structure, improved carbon source utilization efficiency.
5. The bottom of the aerobic tank is a plane, and the top of the aerobic tank is a semicircle. The bubbles overflow to the tank top and can be concentrated on the semicircular dome to form a narrow first-line gas cushion layer, the gas flows backwards under the action of pressure and enters the gas stripping pump at the tail part of the oxygen eliminating tank to be used as driving gas, and nitrified liquid is returned to the oxygen eliminating tank, so that the energy consumption is reduced.
6. This horizontal tank that integration sewage treatment used, secondary sedimentation tank utilize the tank bottom to be half circular, are favorable to depositing the mud automatic flow direction concave tank bottom in the middle of the tank bottom, and the mud is close to the perforation mud pipe distance in middle part, has simplified the arrangement of perforation mud pipe.
Drawings
FIG. 1 is a schematic cross-sectional view of a structure of the present utility model;
FIG. 2 is a schematic plan view of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the structure of the present utility model.
In the figure: 1. an anaerobic mud storage tank; 2. an anoxic tank; 3. an aerobic tank; 4. an oxygen removing pool; 5. a secondary sedimentation tank; 6. a water inlet pipe; 7. self-cleaning the filter; 8. a pulse gas stripping pump; 9. perforating a mud pipe; 10. a manhole; 11. an exhaust valve; 12. a pulse stirrer; 13. a nitrifying liquid reflux port; 14. a microporous aerator; 15. a gas distributor of a gas stripping pump; 16. a communication hole; 17. a water collecting pipe; 18. a water outlet pipe; 19. a communicating pipe; 20. a gas-liquid separation tank; 21. an air lift tube; 22. and (5) an overflow funnel.
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 to 3, in the present embodiment: the utility model provides a horizontal tank that integration sewage treatment used, including anaerobic sludge storage pond 1, anoxic tank 2, good oxygen pond 3, the oxygen removal pond 4, secondary sedimentation tank 5, inlet tube 6 and self-cleaning filter 7, be provided with pulse air lift pump 8 in the anaerobic sludge storage pond 1, the import department fixedly connected with perforation dredge pipe 9 of pulse air lift pump 8, the inside of anoxic tank 2 is provided with pulse agitator 12 and nitrifying liquid reflow mouth 13, the bottom of good oxygen pond 3 is provided with micropore aerator 14, the inside of oxygen removal pond 4 is provided with air lift pump gas distributor 15, communication hole 16 has been seted up to the bottom of oxygen removal pond 4, the inside top fixedly connected with collector pipe 17 of secondary sedimentation tank 5, the one end fixedly connected with outlet pipe 18 of collector pipe 17, the inside of anoxic tank 2 is provided with communication pipe 19, the top of oxygen removal pond 4 is provided with gas-liquid separation case 20, the bottom fixedly connected with air lift pipe 21 of gas lift pipe 21, the side of air lift pipe 21 is provided with overflow funnel 22.
In this embodiment, inlet tube 6 and self-cleaning filter 7 interconnect, and self-cleaning filter 7's delivery port and the import interconnect of anaerobic mud storage pond 1, self-cleaning filter 7 are installed on ground, and self-cleaning filter 7's play water passes through the pipeline and gets into anaerobic mud storage pond 1 in the horizontal jar of buried integrated sewage treatment.
The water outlet of the anaerobic sludge storage tank 1 is connected with the water inlet of the anoxic tank 2, the water outlet of the anoxic tank 2 is connected with the inlet of the aerobic tank 3, the water outlet of the aerobic tank 3 is connected with the water inlet of the oxygen eliminating tank 4, the water outlet of the oxygen eliminating tank 4 is connected with the inlet of the secondary sedimentation tank 5 and the inlet of the anoxic tank 2 at the same time, sludge at the bottom of the secondary sedimentation tank 5 flows back into the anaerobic sludge storage tank 1, and the supernatant of the secondary sedimentation tank 5 is discharged outwards.
The top of the anoxic tank 2 is respectively provided with a manhole 10 and an exhaust valve 11.
The bottom end of the oxygen eliminating pool 4 is also provided with a pulse stirrer 12, part of internal reflux nitrifying liquid in the oxygen eliminating pool 4 flows back to the anoxic pool 2 through a gas stripping pump gas distributor 15, and the driving gas of the gas stripping pump gas distributor 15 is residual gas with pressure overflowed on the water surface of the aerobic pool 3. The two purposes of one air and saving air are achieved. Part of the flow of the oxygen eliminating tank 4 enters the secondary sedimentation tank 5 downwards through a communicating hole 16 at the tail end of the lower horizontal partition plate.
The micro-pore aerator 14 is connected with a blower which is arranged in the equipment room on the ground.
The perforated sludge discharge pipe 9 is positioned at the inner bottom end of the secondary sedimentation tank 5, the outlet of the perforated sludge discharge pipe 9 is connected with the pulse air lift pump 8 in the anaerobic sludge storage tank 1, the supernatant of the secondary sedimentation tank 5 enters the water collecting pipe 17, flows out through the water outlet pipe 18, and needs to enter the secondary sedimentation tank 5 through the manhole 10 and the communicating hole 16 of the anoxic tank 4.
The working principle and the use flow of the utility model comprise the following steps:
step S1: the sewage first enters the self-cleaning filter 7 to remove most of the large-particle solid matters in the sewage, including plastic sheets, chemical fibers, sediment and the like.
Step S2: and the sewage from which the particulate matters are removed enters the anaerobic sludge storage tank 1, and the sewage in the anaerobic sludge storage tank 1 is mixed with the sludge flowing back from the secondary sedimentation tank 5 to perform anaerobic phosphorus release. Part of the residual sludge in the anaerobic sludge storage tank 1 is deposited to a sludge storage tank at the bottom, and fermented in the sludge storage tank, so that the sludge fermentation can reduce the production of the residual sludge and provide a carbon source for denitrification in an anoxic tank. The designed hydraulic retention time of the anaerobic sludge storage tank 1 is 0.5-1.0/h; the surface load is 2.0-2.5m 3/(m2.multidot.h).
Step S3: the effluent of the anaerobic sludge storage tank 1 enters the anoxic tank 2 and is mixed with the nitrifying liquid of the nitrifying liquid backflow port 13 of the aerobic tank 3, and denitrifying bacteria take organic matters in sewage as electron donors and nitrate as electron acceptors to perform oxidation-reduction reaction to reduce the nitrate into nitrogen for removal. The anoxic tank 2 is internally provided with a pulse stirrer 12 for mixing sewage. The sewage in the anoxic tank 2 flows downwards from the upper part, finally enters the bottom of the communicating pipe 19, and enters the aerobic tank 3 through the communicating pipe 19. The designed hydraulic retention time of the anoxic tank 2 is 2.0-4.0/h.
Step S4: and the effluent of the anoxic tank 2 enters the aerobic tank 3. The sewage is aerated and oxygenated by a microporous aerator 14 in an aerobic tank 3, phosphorus is absorbed by phosphorus accumulating bacteria, and ammonia nitrogen is nitrified by nitrifying bacteria. The aeration bubbles overflow the water surface, a narrow line of air cushion layer is formed on the semicircular dome at the top of the accumulation pool, and the air flows backwards under the action of pressure. The designed hydraulic retention time of the aerobic tank 3 is 5.0-7.0/h.
Step S5: the water discharged from the aerobic tank 3 enters the oxygen eliminating tank 4 from the top. The pulse stirrer 12 is arranged in the oxygen eliminating tank 4 to stir the nitrified liquid in the aerobic tank 3, so that bubbles attached to the sludge in the sewage are separated from the sludge and float upwards. Avoiding the influence of bubbles on sludge precipitation in the secondary sedimentation tank 5 after sewage enters the secondary sedimentation tank 5. Meanwhile, nitrifying bacteria continuously utilize dissolved oxygen in water to nitrify ammonia nitrogen, so that the dissolved oxygen in the reflux nitrifying liquid is reduced, and the interference of the dissolved oxygen on the denitrification process of the anoxic tank is reduced. The designed hydraulic retention time of the oxygen eliminating pool is 0.5-1.0/h.
Step S6: part of the effluent of the oxygen eliminating pool 4 flows back into the anoxic pool 2 through the air distributing device 15 of the air stripping pump. The gas overflowed from the surface of the aerobic tank 3 enters the air inlet hole of the air distributor 15 of the air stripping pump downwards through the overflow funnel 22, enters the air lifting pipe 21 from the air inlet hole, the gas-liquid mixture enters the gas-liquid separation tank 20 from the air lifting pipe 21, the nitrified liquid flows back to the anoxic tank 2 in the gas-liquid separation tank 20, and the air is discharged from the top exhaust valve 11.
Step S7: the other part of the oxygen eliminating tank 4 enters the secondary sedimentation tank 5 at the lower part through a communicating hole 16 at the tail end of the horizontal partition plate. The secondary sedimentation tank 5 is a advection sedimentation tank, sewage slowly flows, sludge sinks to the bottom of the tank, and clear water enters a water collecting pipe 17 at the rear end of the secondary sedimentation tank 5. Clear water is collected by the water collecting pipe 17, enters the water outlet pipe 18 and is discharged from the water outlet pipe 18.
Step 8: the sludge at the bottom of the anaerobic sludge storage tank 1 is regularly pumped out by a pump truck and discharged to a landfill.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a horizontal tank that integration sewage treatment used, includes anaerobic sludge storage pond (1), anoxic tank (2), good oxygen pond (3), oxygen eliminating tank (4), secondary sedimentation tank (5), inlet tube (6) and self-cleaning filter (7), its characterized in that: be provided with pulse air lift pump (8) in anaerobic sludge storage pond (1), the import department fixedly connected with perforation mud pipe (9) of pulse air lift pump (8), the inside of oxygen deficiency pond (2) is provided with pulse agitator (12) and nitrify liquid backward flow mouth (13), the bottom of good oxygen pond (3) is provided with micropore aerator (14), the inside of oxygen elimination pond (4) is provided with air lift pump gas distributor (15), communication hole (16) have been seted up to the bottom of oxygen elimination pond (4), the inside top fixedly connected with collector pipe (17) of two heavy ponds (5), the one end fixedly connected with outlet pipe (18) of collector pipe (17), the inside of oxygen deficiency pond (2) is provided with communication pipe (19), the top of oxygen elimination pond (4) is provided with gas-liquid separation case (20), the bottom fixedly connected with gas lift pipe (21) of gas lift pipe (21), the side of gas lift pipe (21) is provided with overflow funnel (22).
2. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the water inlet pipe (6) is connected with the self-cleaning filter (7), and the water outlet of the self-cleaning filter (7) is connected with the inlet of the anaerobic sludge storage tank (1).
3. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the water outlet of the anaerobic sludge storage tank (1) is connected with the water inlet of the anoxic tank (2), the water outlet of the anoxic tank (2) is connected with the inlet of the aerobic tank (3), the water outlet of the aerobic tank (3) is connected with the water inlet of the oxygen eliminating tank (4), the water outlet of the oxygen eliminating tank (4) is connected with the inlet of the secondary sedimentation tank (5) and the inlet of the anoxic tank (2) at the same time, and sludge at the bottom of the secondary sedimentation tank (5) flows back into the anaerobic sludge storage tank (1).
4. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the top of the anoxic tank (2) is respectively provided with a manhole (10) and an exhaust valve (11).
5. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the bottom end of the oxygen eliminating pool (4) is also provided with a pulse stirrer (12).
6. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the microporous aerator (14) is connected with a blower, and the blower is arranged in a device room on the ground.
7. The horizontal tank for integrated wastewater treatment according to claim 1, wherein: the perforated sludge discharge pipe (9) is positioned at the inner bottom end of the secondary sedimentation tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320266268.4U CN219603361U (en) | 2023-02-21 | 2023-02-21 | Horizontal tank for integrated sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320266268.4U CN219603361U (en) | 2023-02-21 | 2023-02-21 | Horizontal tank for integrated sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219603361U true CN219603361U (en) | 2023-08-29 |
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ID=87738642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320266268.4U Active CN219603361U (en) | 2023-02-21 | 2023-02-21 | Horizontal tank for integrated sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219603361U (en) |
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2023
- 2023-02-21 CN CN202320266268.4U patent/CN219603361U/en active Active
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