CN220201617U - Tower biological treatment device for rural domestic sewage - Google Patents
Tower biological treatment device for rural domestic sewage Download PDFInfo
- Publication number
- CN220201617U CN220201617U CN202321028839.7U CN202321028839U CN220201617U CN 220201617 U CN220201617 U CN 220201617U CN 202321028839 U CN202321028839 U CN 202321028839U CN 220201617 U CN220201617 U CN 220201617U
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- tank
- layer
- ventilation
- tower body
- domestic sewage
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- 239000010865 sewage Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000009423 ventilation Methods 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 239000000571 coke Substances 0.000 claims abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 12
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 241001148470 aerobic bacillus Species 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The tower type biological treatment device for rural domestic sewage is mainly used for treating rural domestic sewage and comprises a tower body tank and a preaeration tank, wherein the tower body tank is a cylindrical long column body, the top end of the tower body tank is opened, the tower body tank is divided into a honeycomb ceramic layer, a soft fiber filler layer, an ventilation layer and a crushed stone coke mixing layer from top to bottom through a frame, a hollow ventilation disc with a circular cylindrical side wall provided with an air inlet is arranged at the bottom of the tower body tank, and a water collecting tank is arranged at the bottom of the ventilation disc; a water distribution disc is arranged above the top of the honeycomb ceramic layer, the water distribution disc is communicated with the lower part of an external preaeration tank through a pipeline, an aeration plate is arranged at the inner bottom of the preaeration tank, and the aeration plate is communicated with an external blower through the pipeline. The device has the characteristics of simple structure, uniform oxygen supply and good treatment effect.
Description
Technical Field
The utility model relates to a sewage treatment device which is mainly used for treating rural domestic sewage.
Background
As a high-load biological filter, the tower type biological filter has small occupied area, simple structure and good sanitary condition, and is widely applied to a plurality of rural areas. However, in the actual operation process, the tower type biological filter is in a rectangular arrangement structure, the condition of insufficient oxygen supply is unavoidable, the aerobic bacteria in the bottom filler area are difficult to form a membrane, and meanwhile, when the supply is insufficient, the aerobic bacteria are loose, and an expansion body is formed in the proliferation process of the anaerobic bacteria, so that the filter membrane in the whole carrier filler layer is loose and falls off, and the partial regional water flow directly cannot be purified. Therefore, the structure of the existing tower type biological filter is improved to form a hot spot for research in the field at present.
The prior patent (application number: CN 201220277722.8) discloses a domestic and production sewage treatment system, which comprises a sewage inlet pipe and is characterized in that: the sewage water inlet pipe is connected with a grid well for intercepting larger suspended matters or floating matters in sewage, a pulse water distributor is arranged in the grid well, a water outlet of the grid well is connected with a hydrolysis acidification tank, spherical suspended filler is put in the hydrolysis acidification tank, a water outlet of the hydrolysis acidification tank is connected with a water inlet above a tower type biological filter through a conveying pipe, filler is filled in an inner cavity of the tower type biological filter, a water outlet below the tower type biological filter is connected with a sedimentation tank, light filler is put in the sedimentation tank, a discharge pipe for discharging sewage meeting the discharge requirement is connected with a water outlet of the sedimentation tank, and the system can rapidly treat sewage at low cost, so that the treated sewage can reach the first-level A standard of pollutant discharge standard (GB 18918-2002) of urban sewage treatment plants in China, and pollution generated by sewage is reduced. The system can effectively submit the sewage treatment efficiency after being connected in series with the sedimentation tank through the tower type biological filter tank, but can not effectively solve the problems of uneven water distribution and insufficient supply of the filler in the tower.
Disclosure of Invention
Aiming at the defects of the prior art device, the utility model provides the rural domestic sewage tower type biological treatment device which has the advantages of simple structure, uniform oxygen supply and good treatment effect.
The tower type biological treatment device for rural domestic sewage comprises a tower body tank and a preaeration tank, wherein the tower body tank is a cylindrical long column body, the top end of the tower body tank is open, the tower body tank is divided into a honeycomb ceramic layer, a soft fiber filler layer, an ventilation layer and a crushed stone coke mixing layer from top to bottom through a frame, a hollow ventilation disc with a circular cylindrical side wall provided with an air inlet hole is arranged at the bottom of the tower body tank, and a water collecting tank is arranged at the bottom of the ventilation disc; a water distribution disc is arranged above the top of the honeycomb ceramic layer, the water distribution disc is communicated with the lower part of an external preaeration tank through a pipeline, an aeration plate is arranged at the inner bottom of the preaeration tank, and the aeration plate is communicated with an external blower through the pipeline.
Before sewage treatment, adding culture solution into a preaeration tank, introducing the culture solution into a water distribution disc through gravity flow after aeration, allowing the culture solution to flow through a honeycomb ceramic layer, a soft fiber filler layer and a crushed stone coke mixed layer, and then falling into a bottom water collecting tank, and starting sewage treatment after five days; rural domestic sewage flows into the honeycomb ceramic layer and the soft fiber filler layer for preliminary pollutant degradation after entering the preaeration tank for aeration, air enters the tower body tank for supply by the ventilation disc at the side wall and the bottom of the ventilation layer, finally, sewage flows into the crushed stone coke mixing layer at the lower part for secondary degradation, and treated sewage flows into the water collecting tank at the bottom for discharge.
Further, the heights of the honeycomb ceramic layer, the soft fiber filler layer, the ventilation layer and the crushed stone coke mixing layer are all 0.8-1 m.
Further, a group of ventilation inclined pipes are connected to the outer side wall of the ventilation layer, and the air inlets of the ventilation inclined pipes are horizontally upwards to prevent sewage from splashing.
Further, the soft fiber filler layer is fixed on the frame through nylon ropes, and the distance between the fiber bundles is between two and four centimeters.
Further, a group of spraying holes are distributed on the bottom surface of the water distribution plate, and the number of the spraying holes is gradually increased from the center to the edge.
The beneficial effects of the utility model are as follows:
1. the sewage to be treated is aerated by using a pre-aeration mode, so that the water contains dissolved oxygen, which is favorable for the rapid propagation of aerobic bacteria in the first section of honeycomb ceramic layer of the tower body and accelerates the decomposition of organic matters in the sewage.
2. The air inlet ventilation mode of the middle open pipe is used for increasing the oxygen inlet amount of the lower part and the middle packing layer, reducing the phenomenon of anaerobic bacteria propagation expansion and realizing uniform water and air passing of the filter material.
3. The soft fiber material is used for filling, and has the advantages of small wind resistance and light weight.
Drawings
Fig. 1 is a schematic diagram of the structure of the utility model.
Fig. 2 is a top view of the utility model.
Fig. 3 is a bottom view of the water distribution tray.
In the figure: 1 tower body tank, 2 preaeration tank, 2-1 aeration plate, 2-2 blower, 3 water distribution plate, 3-1 spraying hole, 4 honeycomb ceramic layer, 5 frame, 6 soft fiber filler layer, 7 ventilation layer, 7-1 ventilation inclined tube, 8 crushed stone coke mixing layer, 9 ventilation plate, 9-1 air inlet hole, 10 water collecting tank, 11 pipeline
Description of the embodiments
Example 1
As shown in fig. 1, 2 and 3, the rural domestic sewage tower biological treatment device comprises a tower body tank 1 and a preaeration tank 2, wherein the tower body tank 1 is a cylindrical long column, the top end of the tower body tank is open, the tower body tank is divided into a honeycomb ceramic layer 4, a soft fiber filler layer 6, a ventilation layer 7 and a crushed stone coke mixing layer 8 from top to bottom through a frame 5, and the heights of the honeycomb ceramic layer 4, the soft fiber filler layer 6, the ventilation layer 7 and the crushed stone coke mixing layer 8 are all 0.8-1 m; a group of ventilation inclined pipes 7-1 are connected to the outer side wall of the ventilation layer 7, and the air inlet of the ventilation inclined pipes 7-1 is horizontally upwards to prevent sewage from splashing; the soft fiber filler layer 6 is fixed on the frame 5 through nylon ropes, and the distance between fiber bundles is between two and four centimeters; a hollow ventilation disc 9 with a circular cylinder-shaped side wall provided with an air inlet is arranged at the bottom of the tower body tank 1, and a water collecting tank 10 is arranged at the bottom of the ventilation disc 9; a water distribution disc 3 is arranged above the top of the honeycomb ceramic layer 4, a group of spraying holes 3-1 are distributed on the bottom surface of the water distribution disc 3, the number of the spraying holes 3-1 is gradually increased from the center to the edge, the water distribution disc 3 is communicated with the lower part of an external preaeration tank 2 through a pipeline 11, an aeration plate 2-1 is arranged at the inner bottom of the preaeration tank 2, and the aeration plate 2-1 is communicated with an external blower 2-2 through the pipeline.
Before sewage treatment, adding culture solution into the preaeration tank 2, enabling the culture solution to flow into the water distribution disc 3 through gravity flow after aeration, enabling the culture solution to flow through the honeycomb ceramic layer 4, the soft fiber filler layer 6 and the crushed stone coke mixing layer 8, then falling into the bottom water collecting tank 10, and starting sewage treatment after five days; sewage enters the preaeration tank for aeration and flows into the honeycomb ceramic layer 4 and the soft fiber filler layer 6 for preliminary pollutant degradation, air enters the tower body tank 1 from the ventilation disc at the side wall and the bottom of the ventilation layer 7 for feeding, finally, sewage flows into the crushed stone coke mixing layer 8 at the lower part for secondary degradation, and the treated sewage flows into the water collecting tank 10 at the bottom and is discharged.
Claims (5)
1. The utility model provides a rural domestic sewage tower biological treatment device, includes tower body jar and preaeration cell, its characterized in that: the tower body tank is a cylindrical long column body, the top end of the tower body tank is open, the tower body tank is divided into a honeycomb ceramic layer, a soft fiber filler layer, an air ventilation layer and a crushed stone coke mixing layer from top to bottom through a frame, the bottom of the tower body tank is provided with a circular cylindrical ventilation disc with air inlet holes on the side wall, and the bottom of the ventilation disc is provided with a water collecting tank; a water distribution disc is arranged above the top of the honeycomb ceramic layer, the water distribution disc is communicated with the lower part of an external preaeration tank through a pipeline, an aeration plate is arranged at the inner bottom of the preaeration tank, and the aeration plate is communicated with an external blower through the pipeline.
2. The rural domestic sewage tower biological treatment device according to claim 1, wherein: the heights of the honeycomb ceramic layer, the soft fiber filler layer, the ventilation layer and the crushed stone coke mixing layer are all 0.8-1 m.
3. The rural domestic sewage tower biological treatment device according to claim 1, wherein: a group of ventilation inclined pipes are connected to the outer side wall of the ventilation layer, and the air inlets of the ventilation inclined pipes are horizontally upwards to prevent sewage from splashing.
4. The rural domestic sewage tower biological treatment device according to claim 1, wherein: the soft fiber stuffing layer is fixed on the frame via nylon rope, and the interval between fiber bundles is between two and four cm.
5. The rural domestic sewage tower biological treatment device according to claim 1, wherein: the bottom surface of the water distribution plate is provided with a group of spray holes, and the number of the spray holes is gradually increased from the center to the edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321028839.7U CN220201617U (en) | 2023-05-04 | 2023-05-04 | Tower biological treatment device for rural domestic sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321028839.7U CN220201617U (en) | 2023-05-04 | 2023-05-04 | Tower biological treatment device for rural domestic sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220201617U true CN220201617U (en) | 2023-12-19 |
Family
ID=89146042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321028839.7U Active CN220201617U (en) | 2023-05-04 | 2023-05-04 | Tower biological treatment device for rural domestic sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220201617U (en) |
-
2023
- 2023-05-04 CN CN202321028839.7U patent/CN220201617U/en active Active
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