CN210215095U - Domestic sewage integrated device - Google Patents
Domestic sewage integrated device Download PDFInfo
- Publication number
- CN210215095U CN210215095U CN201920918555.2U CN201920918555U CN210215095U CN 210215095 U CN210215095 U CN 210215095U CN 201920918555 U CN201920918555 U CN 201920918555U CN 210215095 U CN210215095 U CN 210215095U
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- China
- Prior art keywords
- aerobic zone
- zone
- partition plate
- reaction tank
- clapboard
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- 239000010865 sewage Substances 0.000 title claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 28
- 238000005276 aerator Methods 0.000 claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005273 aeration Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model relates to a domestic sewage integrated device, which comprises a reaction tank and a secondary sedimentation tank, wherein a first clapboard and a second clapboard are arranged in the reaction tank, a first aerobic zone is formed between the first clapboard and the inner wall of the reaction tank, a second aerobic zone is formed between the second clapboard and the inner wall of the reaction tank, and an anoxic zone is formed between the first clapboard and the second clapboard; a first channel is formed between the lower end of the first partition plate and the bottom of the reaction tank, and a second channel is formed between the lower end of the second partition plate and the bottom of the reaction tank; a third overflow port is formed at the upper end of the second aerobic zone and is suitable for communicating the second aerobic zone with the secondary sedimentation tank; a first microporous aerator is arranged in the first aerobic zone, and a second microporous aerator is arranged in the second aerobic zone. The aeration device enables water flow between the anoxic zone and the aerobic zones on two sides to circulate, saves equipment investment of a mixed liquid reflux pump, and is low in maintenance cost and running cost.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to domestic sewage integrated device.
Background
At present, the domestic sewage treatment process is quite mature, in the traditional process, for the treatment of the domestic sewage, an AO + secondary sedimentation tank is adopted, and in the using process, more reflux pumps are required to be arranged between each aerobic tank and each anoxic tank, so that the defects of multiple equipment, high maintenance cost and the like exist, an improved space exists, and the domestic and foreign optimization on the aspect is not great.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the domestic sewage integrated device is provided, and the problems that in the existing domestic sewage treatment device, configured equipment is more and the maintenance cost is high are solved.
The utility model provides a technical scheme that its technical problem adopted is: a domestic sewage integrated device comprises a reaction tank and a secondary sedimentation tank, wherein a first partition plate and a second partition plate are arranged in the reaction tank, a first aerobic zone is formed between the first partition plate and the inner wall of the reaction tank, a second aerobic zone is formed between the second partition plate and the inner wall of the reaction tank, and an anoxic zone is formed between the first partition plate and the second partition plate;
a first channel is formed between the lower end of the first clapboard and the bottom of the reaction tank, and a first overflow port is formed at the upper end of the first clapboard and is suitable for communicating a first aerobic zone and an anoxic zone; a second channel is formed between the lower end of the second partition plate and the bottom of the reaction tank, and a second overflow port is formed at the upper end of the second partition plate and is suitable for communicating a second aerobic zone and an anoxic zone; a third overflow port is formed at the upper end of the second aerobic zone and is suitable for communicating the second aerobic zone with the secondary sedimentation tank;
a first microporous aerator is arranged in the first aerobic zone, and a second microporous aerator is arranged in the second aerobic zone.
Furthermore, steam stripping for pumping sludge is arranged in the secondary sedimentation tank, an inlet of the steam stripping is positioned at the bottom of the secondary sedimentation tank, and an outlet of the steam stripping extends into the first aerobic zone.
Furthermore, the first microporous aerator, the second microporous aerator and the steam stripping device are respectively connected with an air inlet pipe, and the air inlet pipe is connected with a fan and is suitable for providing working air flow for the two microporous aerators and the steam stripping device.
Furthermore, a guide cylinder is arranged in the secondary sedimentation tank, the guide cylinder is vertically arranged, the third overflow port is connected with an overflow pipe, and the outlet of the overflow pipe is connected with the inlet of the guide cylinder.
The utility model has the advantages that:
the domestic sewage treatment device has the advantages that the aeration device is arranged to circulate water flow between the anoxic zone and the aerobic zones on two sides, the equipment investment of a mixed liquid reflux pump is saved, the maintenance cost is low, and the operation cost is low.
The aerobic zone aerator has the functions of aeration, oxygen supply and stirring, and also has the function of digestive juice reflux, thereby being energy-saving, environment-friendly and practical;
the sludge reflux of the secondary sedimentation tank adopts steam stripping without arranging a sludge reflux pump; the equipment investment of the mud reflux pump is reduced, the maintenance cost is low, and the operation cost is low;
the stripped sludge flows back to the aerobic zone and passes through the internal circulation of the aerobic zone and the anoxic zone to achieve the purposes of supplementing the sludge concentration and not influencing the anoxic environment of the anoxic zone to the maximum extent;
the function of denitrification and carbon removal can be achieved by only one fan, pumps are not added, equipment maintenance and faults are reduced, and stable operation of the system is guaranteed to the maximum extent.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a domestic sewage treatment apparatus according to the present invention;
the system comprises a first aerobic zone, a second aerobic zone, a anoxic zone, a first partition plate, a second partition plate, a first microporous aerator, a second settling tank, a steam stripping tank, a flow guide cylinder, a second settling tank, a steam stripping tank and a fan, wherein the first aerobic zone is 1, the second aerobic zone is 2, the second aerobic zone is 3, the anoxic zone is 4.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in figure 1, the domestic sewage integrated device comprises a reaction tank and a secondary sedimentation tank 7, wherein a first partition plate 4 and a second partition plate 5 are arranged in the reaction tank, a first aerobic zone 1 is formed between the first partition plate 4 and the inner wall of the reaction tank, a second aerobic zone 2 is formed between the second partition plate 5 and the inner wall of the reaction tank, and an anoxic zone 3 is formed between the first partition plate 4 and the second partition plate 5.
A first channel is formed between the lower end of the first clapboard 4 and the bottom of the reaction tank, and a first overflow port is formed at the upper end of the first clapboard 4 and is suitable for communicating the first aerobic zone 1 and the anoxic zone 3; a second channel is formed between the lower end of the second clapboard 5 and the bottom of the reaction tank, and a second overflow port is formed at the upper end of the second clapboard 5 and is suitable for communicating the second aerobic zone 2 and the anoxic zone 3; a third overflow port is formed at the upper end of the second aerobic zone 2 and is suitable for communicating the second aerobic zone 2 with a secondary sedimentation tank 7; a first microporous aerator 61 is arranged in the first aerobic zone 1, and a second microporous aerator 62 is arranged in the second aerobic zone 2.
A stripping 8 for pumping sludge is arranged in the secondary sedimentation tank 7, the inlet of the stripping 8 is positioned at the bottom of the secondary sedimentation tank 7, and the outlet of the stripping 8 extends into the first aerobic zone 1. The sludge reflux of the secondary sedimentation tank 7 adopts steam stripping 8 without arranging a sludge reflux pump; the equipment investment of the mud reflux pump is reduced, the maintenance cost is low, and the operation cost is low;
specifically, the first microporous aerator 61, the second microporous aerator 62 and the steam stripping 8 are respectively connected with an air inlet pipe, and the air inlet pipe is connected with the fan 10 and is suitable for providing working air flow for the two microporous aerators and the steam stripping 8.
The actual number of first and second micro-porous aerators 61 and 62 is selected according to the actual amount of water, and the number is not limited in this embodiment.
Specifically, in order to enable the mixed sewage in the second aerobic zone 2 to uniformly enter the secondary sedimentation tank 7, a guide cylinder 9 is arranged in the secondary sedimentation tank 7, the guide cylinder 9 is vertically arranged, the third overflow port is connected with an overflow pipe, and the outlet of the overflow pipe is connected with the inlet of the guide cylinder 9. A fall can exist between the secondary sedimentation tank 7 and the second aerobic zone 2, so that the mixed sewage of the second aerobic zone 2 enters the secondary sedimentation tank 7.
The bottom of the secondary sedimentation tank 7 is provided with a sludge outlet which is suitable for discharging the deposited sludge so as to discharge the sludge accumulated in the whole device.
The steam stripping 8, the guide shell 9 and the microporous aerator which are related in the embodiment are all the existing mature products.
The process flow and the principle are explained as follows:
domestic sewage enters an anoxic zone 3 after being lifted, the anoxic zone 3 is in an anoxic environment, dissolved oxygen is about 0.5mg/l, a first aerobic zone 1 and a second aerobic zone 2 are arranged on two sides of the anoxic zone 3, a first partition plate 4 and a second partition plate 5 are separated between the aerobic zone and the anoxic zone 3, a first microporous aerator 61 and a second microporous aerator 62 are respectively arranged in the two aerobic zones, air is introduced into a fan 10 to provide oxygen for the two microporous aerators, the dissolved oxygen in the aerobic zone is more than 2mg/l, when the fan 10 introduces air to the microporous aerators, water flow in the aerobic zone can flow upwards due to the principle of steam stripping 8 and is upward flow,
flows to the anoxic zone 3, the anoxic zone 3 flows downwards, thereby generating a circulation, and the water flows from the aerobic zone to the anoxic zone 3 along the first overflow port and the second overflow port of the clapboard, then flows to the aerobic zones at two sides along the first channel and the second channel under the clapboard, thereby generating an internal circulation by the action of the stripping 8 of the aerator.
The anoxic tank is in an anoxic environment, the aerobic tank is in an aerobic environment, the sewage is nitrified into nitrate nitrogen under the action of nitrifying bacteria in the aerobic tank, and then the nitrate nitrogen is converted into nitrogen under the action of denitrifying bacteria in the anoxic zone 3. Thereby removing ammonia nitrogen and total nitrogen.
The sewage after denitrification and carbon removal flows to a secondary sedimentation tank 7 from a third overflow port of the second aerobic zone 2, mud and water are subjected to solid-liquid separation, supernatant is discharged out of the system, and activated sludge supplements the concentration of the activated sludge in the anoxic tank and the aerobic tank through sludge backflow. Here, no reflux pump is provided, but by means of stripping 8.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A domestic sewage integrated device is characterized by comprising a reaction tank and a secondary sedimentation tank, wherein a first partition plate and a second partition plate are arranged in the reaction tank, a first aerobic zone is formed between the first partition plate and the inner wall of the reaction tank, a second aerobic zone is formed between the second partition plate and the inner wall of the reaction tank, and an anoxic zone is formed between the first partition plate and the second partition plate;
a first channel is formed between the lower end of the first clapboard and the bottom of the reaction tank, and a first overflow port is formed at the upper end of the first clapboard and is suitable for communicating a first aerobic zone and an anoxic zone; a second channel is formed between the lower end of the second partition plate and the bottom of the reaction tank, and a second overflow port is formed at the upper end of the second partition plate and is suitable for communicating a second aerobic zone and an anoxic zone; a third overflow port is formed at the upper end of the second aerobic zone and is suitable for communicating the second aerobic zone with the secondary sedimentation tank;
a first microporous aerator is arranged in the first aerobic zone, and a second microporous aerator is arranged in the second aerobic zone.
2. The integrated domestic sewage treatment device of claim 1, wherein a stripping device for pumping sludge is arranged in the secondary sedimentation tank, an inlet of the stripping device is positioned at the bottom of the secondary sedimentation tank, and an outlet of the stripping device extends into the first aerobic zone.
3. The integrated domestic sewage treatment apparatus according to claim 2, wherein the first microporous aerator, the second microporous aerator and the steam stripping unit are respectively connected with an air inlet pipe, and the air inlet pipe is connected with a fan and is adapted to provide working air flow for the two microporous aerators and the steam stripping unit.
4. The integrated domestic sewage device of claim 1 wherein a draft tube is disposed in the secondary sedimentation tank, the draft tube is vertically disposed, the third overflow port is connected to an overflow pipe, and the outlet of the overflow pipe is connected to the inlet of the draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918555.2U CN210215095U (en) | 2019-06-18 | 2019-06-18 | Domestic sewage integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918555.2U CN210215095U (en) | 2019-06-18 | 2019-06-18 | Domestic sewage integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210215095U true CN210215095U (en) | 2020-03-31 |
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ID=69932661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920918555.2U Active CN210215095U (en) | 2019-06-18 | 2019-06-18 | Domestic sewage integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210215095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286181A (en) * | 2022-08-12 | 2022-11-04 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
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2019
- 2019-06-18 CN CN201920918555.2U patent/CN210215095U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286181A (en) * | 2022-08-12 | 2022-11-04 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
| CN115286181B (en) * | 2022-08-12 | 2024-01-26 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
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