CN202007154U - Aeration biological filter - Google Patents
Aeration biological filter Download PDFInfo
- Publication number
- CN202007154U CN202007154U CN2011200849180U CN201120084918U CN202007154U CN 202007154 U CN202007154 U CN 202007154U CN 2011200849180 U CN2011200849180 U CN 2011200849180U CN 201120084918 U CN201120084918 U CN 201120084918U CN 202007154 U CN202007154 U CN 202007154U
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- CN
- China
- Prior art keywords
- filter
- water
- material layer
- pipe
- gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses an aeration biological filter, which comprises a filter body, a filter media layer, a bearing layer, a water distribution system, a gas distribution system, a back flush system, a water outlet system and an automatic control system, wherein the back flush system comprises a back flush drainage pipe and a gas impulse intake pipe which are arranged at the bottom of the filter body, and the gas impulse intake pipe is connected with a gas impulse generator through a one-way valve; and the aeration biological filter further comprises a back flush water pipe which is arranged above the filter media layer. The water distribution system comprises a plurality of inverse L-shaped water distribution pipes which are uniformly distributed in the bearing layer, and the vertical sections of the inverse L-shaped water distribution pipes downwards extend out of the bearing layer. A filter plate is arranged above the filter media layer, and filter heads of which one ends are communicated with the upper part of the filter media layer are uniformly distributed in the filter plate. The aeration biological filter has a simple structure, and saves water resources.
Description
Technical field
The utility model belongs to sewage treatment area, especially relates to a kind of BAF.
Background technology
BAF (Biological Aerated Filter, BAF) be a kind of special shape of biological contact oxidation process, promptly in bio-reactor, load the granular filler of high-specific surface area, so that the carrier of microbial film growth to be provided, provide aeration in the filter material layer bottom, air is reverse with sewage or contact in the same way, and organic pollutant and filling surface microbial film obtain degraded by biochemical reaction in the sewage, and filler plays the physical filtering effect simultaneously.BAF integrates absorption, oxidation and filters, and by the periodicity back flushing, microbial film is upgraded.
At present, most of sewage disposal enterprise adopts Up-flow Biological Aerated Filter to dispose of sewage, upward flow filtration is with opposite to flowing through filter down, upward flow filtration maintains on the height of whole filter tank positive pressure is provided, can better avoid forming channel or short stream, thereby avoid influencing the air pocket that filtration process forms by forming channel.But Up-flow Biological Aerated Filter because filtering layer is held back dirt and biomembranous growth, must regularly be carried out back flushing to BAF in operational process.The back-purge system of existing BAF is that a back flushing pipeline is set on BAF, but this backwash mode water demand ratio is bigger, and is bigger to the waste of water resources.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of BAF, and it is simple in structure, the conserve water resource.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of BAF, comprise pond, filter tank body, filter material layer, supporting layer, water distribution system, gas distribution system, back-purge system, outlet system and robot control system(RCS), described back-purge system comprises sewage backwash pipe and the gas ram charging pipe that body bottom, pond, filter tank is provided with, and this gas pulses inlet pipe is connected with the gas pulses producer by check valve; Also comprise the back flushing water pipe of being located at the filter material layer top.
Described water distribution system comprises uniform some Γ shape water distributors in the described supporting layer, and vertical section of Γ shape water distributor is stretched out supporting layer downwards.
Described filter material layer top is provided with filter plate, and a uniform end is communicated with the filter on filter material layer top in the filter plate.
Back-purge system of the present utility model has adopted the gas pulses air inlet that filter material layer is washed rapidly repeatedly, utilizes pulse to wash the end time, stops flushing, precipitation for some time, open the flushing pollution discharge pipe, the water pipe of back flushing is simultaneously gone into water purification from the pond jacking, and filter material layer is cleaned.The utility model can utilize less water to reach the effect that flushing is washed filter material layer.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the water distributor among Fig. 1.
Among the figure: pond, 1 filter tank body, 2 water purification rising pipes, 3 overflow weirs, 4 back flushing water pipes, 5 filter plates, 6 filters, 7 filter material layers, 8 gas distribution systems, 9 gas pulses producers, 10 check valves, 11 gas pulses inlet pipe, 12 sewage backwash pipes, 13 sewage water inlet pipes, 14 supporting layers, 15 Γ shape water distributors.
Embodiment
As shown in Figure 1, BAF comprises pond, filter tank body 1, filter material layer 7, supporting layer 14, water distribution system, gas distribution system 8, back-purge system, outlet system and robot control system(RCS) (not shown).
Supporting layer 14 is positioned at filter material layer 7 belows, support filter material layer 7.
Water distribution system comprises the sewage water inlet pipe 13 that body 1 bottom, pond, filter tank is provided with.
Outlet system comprises overflow weir 3 that body 1 top, pond, filter tank is provided with and the water purification rising pipe 2 that the overflow water purification is drawn.
Back-purge system comprises sewage backwash pipe 12 and the gas ram charging pipe 11 that body 1 bottom, pond, filter tank is provided with, and this gas pulses inlet pipe 11 is connected with gas pulses producer 9 by check valve 10.Body top, pond, pond is provided with the back flushing water pipe 4 that is positioned at bed of material top.
Principle of work:
Along with pulse gas enter body 1 bottom, pond, filter tank, pressure increases rapidly, liquid passes filter material layer 7 and rises.Two bursts of pulse gas gaps, pressure descends rapidly, and liquid passes filter material layer 7 and descends.Therefore, along with the rising and the decline of liquid, filter material layer 7 is cleaned repeatedly and washes away.Stop flushing, precipitation for some time, suspended substance is sunk at the bottom of the pond, open flushing pollution discharge pipe 12, simultaneously back flushing water pipe 4 is gone into water purification from the pond jacking, filter material layer 7 is cleaned, and suspended substance is discharged.
As to further improvement of the utility model, uniform some Γ shape water distributors 15 in the supporting layer 14, vertical section of Γ shape water distributor 15 is stretched out the sewage space that supporting layer 14 enters body 1 bottom, pond, filter tank downwards.Therefore Γ shape water distributor 15 can be good at water conservancy performance and blocking-proof result because of having elbow.
As to further improvement of the utility model, described filter material layer 7 tops are provided with filter plate 5, and uniform ends are communicated with the filter 6 on filter material layers 7 tops in the filter plate 5, will intake and draw from filter material layer 7 tops.
Claims (3)
1. BAF, comprise pond, filter tank body, filter material layer, supporting layer, water distribution system, gas distribution system, back-purge system, outlet system and robot control system(RCS), it is characterized in that: described back-purge system comprises sewage backwash pipe and the gas ram charging pipe that body bottom, pond, filter tank is provided with, and this gas pulses inlet pipe is connected with the gas pulses producer by check valve; Also comprise the back flushing water pipe of being located at the filter material layer top.
2. BAF according to claim 1 is characterized in that: described water distribution system comprises uniform some Γ shape water distributors in the described supporting layer, and vertical section of Γ shape water distributor is stretched out supporting layer downwards.
3. BAF according to claim 1 and 2 is characterized in that: described filter material layer top is provided with filter plate, and a uniform end is communicated with the filter on filter material layer top in the filter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200849180U CN202007154U (en) | 2011-03-28 | 2011-03-28 | Aeration biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200849180U CN202007154U (en) | 2011-03-28 | 2011-03-28 | Aeration biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007154U true CN202007154U (en) | 2011-10-12 |
Family
ID=44748811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200849180U Expired - Lifetime CN202007154U (en) | 2011-03-28 | 2011-03-28 | Aeration biological filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006962A (en) * | 2016-05-18 | 2016-10-12 | 上海立泉环境科技有限公司 | Biological aerated filter device |
| CN111727926A (en) * | 2020-08-25 | 2020-10-02 | 湖南艾布鲁环保科技股份有限公司 | System and method for ecological purification and cyclic utilization of aquaculture polluted organisms |
-
2011
- 2011-03-28 CN CN2011200849180U patent/CN202007154U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006962A (en) * | 2016-05-18 | 2016-10-12 | 上海立泉环境科技有限公司 | Biological aerated filter device |
| CN111727926A (en) * | 2020-08-25 | 2020-10-02 | 湖南艾布鲁环保科技股份有限公司 | System and method for ecological purification and cyclic utilization of aquaculture polluted organisms |
| CN111727926B (en) * | 2020-08-25 | 2020-12-15 | 湖南艾布鲁环保科技股份有限公司 | System and method for ecological purification and cyclic utilization of aquaculture polluted organisms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |