CN206033496U - Sewage treatment system based on two -stage bological aerated filter - Google Patents
Sewage treatment system based on two -stage bological aerated filter Download PDFInfo
- Publication number
- CN206033496U CN206033496U CN201620972914.9U CN201620972914U CN206033496U CN 206033496 U CN206033496 U CN 206033496U CN 201620972914 U CN201620972914 U CN 201620972914U CN 206033496 U CN206033496 U CN 206033496U
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- China
- Prior art keywords
- baf
- aerated filter
- outlet pipe
- sewage disposal
- bological aerated
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a sewage treatment system based on two -stage bological aerated filter, including equalizing basin, elevator pump, a bological aerated filter, the 2nd bological aerated filter, an equalizing basin and a bological aerated filter are connected to the elevator pump, and the overflow pipe and the 2nd bological aerated filter at a bological aerated filter top are connected, a bological aerated filter's the height that highly is greater than the 2nd bological aerated filter, and the oxygen concentration is greater than the oxygen concentration in the 2nd bological aerated filter in the bological aerated filter. The utility model discloses an oxygen concentration in the aspect adjustment aeration bological aerated filter is greater than the oxygen concentration in the 2nd bological aerated filter to improve a bological aerated filter organic matter oxidation efficiency and the 2nd bological aerated filter remove ammonia nitrogen efficiency, but on the other hand with a bological aerated filter highly be greater than the 2nd bological aerated filter the height so that in bological aerated filter sewage overflow to the 2nd bological aerated filter reduce sewage and carry energy consumption.
Description
Technical field
The utility model is related to sewage disposal technology, at a kind of sewage based on two-stage aerated biological filter
Reason system.
Background technology
As aerator is in device bottom, oxygen concentration gradients taper off mode single biological aerated filter from down to up
Distribution, according to the design feature of BAF, is aerator, supporting layer, packing layer, due to support from down to up respectively
What layer was typically filled as material by larger cobblestone, these cobblestones will not be by aeration, the current of recoil or air-flow punching
It is dynamic, the stage of vigorous agitation is reached, so, the aeration of BAF can not possibly reach uniform stage, can form local
The situation of anoxic, is additionally, since and exists in biomembranous mode in packing layer microorganism, and biomembrane is become in constantly dynamic
Change, experiencing attachment, growth, the aging, process that comes off, regrow, traditional biofilm theory is thought：Carrier surface is given birth to
Long biomembrane is typically made up of two parts：Near carrier surface part be referred to as inertia biosphere, this part microorganism due to
It is difficult to obtain foodstuff, poor activity is not involved in biochemical reaction substantially；It is wrapped in and cries active bio layer, organic dirt outside inert layer
The removal of dye thing relies primarily on the microorganism in this layer.The backwash time interval of the filler of BAF, backwash intensity
Biomembranous thickness on filler is determined just with backwash mode.From biomembranous top layer to deep layer, oxygen also changes in gradient, point
Not there is aerobic, anoxic and anaerobic reaction.Due to oxygen distribution it is uneven, locally have anaerobic condition, biomembrane is not stopping
Dynamic change, it is so the index such as COD, ammonia nitrogen in the water outlet of single biological aerated filter can constantly occur fluctuation, special
It is not ammonia nitrogen index, can be incomplete due to nitrification, and do not possess the condition of short distance nitration, make increased nitrite, ammonia-nitrogen content
Go up not down.
In order to avoid the generation of above-mentioned phenomenon, a single-stage aeration and biological filter of can connecting after single biological aerated filter
Pond forms two grades of BAFs, and so waste water containing nitrous acid can enter the bottom aeration zone of the second level, continue oxidation, will
Nitrite-oxidizing, into nitrate, is that follow-up denitrification creates good condition.
But, two grades of current BAFs still have that organic matter, ammonia nitrogen removal rate are low.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical deficiency, proposes a kind of dirt based on two-stage aerated biological filter
Water treatment system, the low technical problem of the organic matter of two-stage aerated biological filter, ammonia nitrogen removal rate in solution prior art.
For reaching above-mentioned technical purpose, the technical solution of the utility model provides a kind of based on two-stage aerated biological filter
Sewage disposal system, including regulating reservoir, elevator pump, the first BAF, the second BAF, the elevator pump
Water inlet end is connected with the regulating reservoir, water side is connected with first BAF, first BAF
Top is provided with an overflow pipe, and the water side of the overflow pipe is connected with the water inlet end of second BAF；Wherein,
Height of the height of first BAF more than the second BAF, and first BAF
Aeration power is more than the aeration power of the second BAF and makes oxygen concentration in first BAF be more than institute
State the oxygen concentration in the second BAF.
Preferably, the sewage disposal system also include a back purge system, the back purge system include respectively with institute
State the first BAF and the second BAF lower end connection first backwash water inlet pipe and second backwash into
Water pipe, be respectively arranged at first BAF and the second BAF upper end the first backwash outlet pipe and
Second backwash outlet pipe, the water inlet end of the first backwash outlet pipe are provided with and are connected with first BAF
Multiple first effluent troughs, second backwash outlet pipe water inlet end be provided with it is many with what second BAF was connected
Individual second effluent trough.
Preferably, multiple first effluent troughs are evenly arranged along the length direction of the described first backwash outlet pipe, many
Individual second effluent trough is evenly arranged along the length direction of the described second backwash outlet pipe.
Preferably, the sewage disposal system also backwashes water outlet including one with the described first backwash outlet pipe and second
The transition pond of the water side connection of pipe, the transition bottom of pond portion are provided with drainpipe, return duct, and the return duct is less than the row
The water side of water pipe and the return duct is connected with the regulating reservoir top.
Preferably, the sewage disposal system also includes a triple valve, and two water inlet ends of the triple valve are respectively with the
One backwash outlet pipe and the second backwash outlet pipe connection, the water side of the triple valve is connected with the upper end in the transition pond
Connect.
Preferably, a vapour lock for destroying vapour lock is additionally provided between the triple valve and the transition pond destroys well.
Compared with prior art, the oxygen concentration that on the one hand the utility model is adjusted in the first BAF of aeration is more than
Oxygen concentration in second BAF, to improve oxidation operation efficiency and the life of the second aeration of the first BAF
Thing filter tank except ammonia nitrogen efficiency, on the other hand by the height of the first BAF more than the second BAF height
In order to sewage in the first BAF can overflow to the second BAF, reduce sewage transport energy ezpenditure.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the sewage disposal system based on two-stage aerated biological filter of the present utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Fig. 1 is referred to, embodiment of the present utility model provides a kind of sewage disposal based on two-stage aerated biological filter
System, including regulating reservoir 1, elevator pump 2, the first BAF 3, the second BAF 4, the elevator pump 2 enters
Water end (W.E.) is connected with the regulating reservoir 1, water side is connected with first BAF 3, first BAF 3
Top is provided with an overflow pipe 5, and the water side of the overflow pipe 5 is connected with the water inlet end of second BAF 4；Its
In, the height of first BAF 3 is more than the height of the second BAF 4, and first aeration and biological
The aeration power in filter tank 3 is more than the aeration power of the second BAF 4 and makes oxygen in first BAF 3 dense
Degree is more than the oxygen concentration in second BAF 4.
During concrete sewage disposal, the water quality of sewage, the water yield are adjusted by regulating reservoir 1 first, then by being lifted
Sewage input in regulating reservoir 1 is carried out coagulation in the first BAF 3 by pump 2, after coagulation, by first
5 overflow of overflow pipe at the top of BAF 3 carries out two stage treatment to the second BAF 4.In order to improve one-level
Process and two stage treatment treatment effeciency, the present embodiment improves the aeration power in the first BAF 3, and then improves the
Oxygen concentration in one BAF 3, makes the oxygen concentration in the first BAF 3 be more than the second BAF 4
Interior oxygen concentration, improves the oxygen concentration in the first BAF 3 and can be conducive to the dirty Organic substance in water and of culture oxidation
The dominant bacteria of a little reducing substanceses, and then promote the removal efficiency of organic matter and reducing substances；And the filter of the second aeration and biological
Pond 4 is oppositely arranged as relatively low oxygen concentration, then be conducive to cultivating the dominant bacteria for removing ammonia nitrogen, imitated with the removing for promoting ammonia nitrogen
Rate.The present embodiment is by the first BAF 3 of control and the oxygen concentration of the second BAF 4, and then controls respectively
Cultivate the advantage for removing organic matter, reducing substances and ammonia nitrogen in the first BAF 3 and the second BAF 4
Bacterial classification, so that improve the removal efficiency of organic matter, reducing substances and ammonia nitrogen on the whole.
Sewage disposal system described in the present embodiment also include a back purge system 6, the back purge system 6 include respectively with
First backwash water inlet pipe 601 and second of first BAF 3 and the connection of 4 lower end of the second BAF is anti-
Water inlet pipe 602 is rinsed, be respectively arranged at 4 upper end of first BAF 3 and the second BAF first is anti-
Outlet pipe 603 and the second backwash outlet pipe 604 is rinsed, the water inlet end of the first backwash outlet pipe 603 is provided with and institute
Multiple first effluent trough 603a of the first BAF connection are stated, the water inlet end of the second backwash outlet pipe 604 is provided with
The multiple second effluent trough 604a connected with second BAF 4.In sewage disposal process, periodically can carry out anti-
Rinse the treatment effeciency to ensure sewage disposal system, and the backwash of the present embodiment first outlet pipe 603 and the second backwash
Outlet pipe 604 forms overflow water outlet by arranging the first effluent trough 603a and the second effluent trough 604a respectively.
Wherein, the multiple first effluent trough 603a of the present embodiment are along the length side of the described first backwash outlet pipe 603
To being evenly arranged, multiple second effluent trough 604a are evenly arranged along the length direction of the described second backwash outlet pipe 604,
So as to overflow area can be increased, promote spillover efficiency.
At the backwash water outlet initial stage, contain sewage and a small amount of sludge in water outlet, and form cloudy state, in order to avoid muddiness
Water is discharged, and sewage disposal system described in the present embodiment is also backwashed with the described first backwash outlet pipe 603 and second including one
The transition pond 7 of the water side connection of outlet pipe 604,7 bottom of transition pond is provided with drainpipe 8, return duct 9, the backflow
Pipe 9 is less than the drainpipe 8 and the water side of the return duct 9 is connected with 1 top of the regulating reservoir, during backwash water outlet, can
Into in transition pond 7, muddy water can be directly back to follow-up to carry out in regulating reservoir 1 by the return duct of 7 bottom of transition pond
Process, and when backwash water outlet is primary water, return valve 10 on return duct 9 can cut out, as drainpipe 8 is higher than backflow
Pipe, when the primary water of accumulation in transition pond 7 is higher than drainpipe 8, then can pass through 8 automatic outletting of drainpipe.
Wherein, the water outlet for the ease of the first backwash water inlet pipe 601 and the second backwash water inlet pipe 602 enters transition pond
In 7, sewage disposal system described in the present embodiment also includes a triple valve 11, and two water inlet ends of the triple valve 11 are respectively with the
One backwash outlet pipe 603 and the second backwash outlet pipe 604 connect, the water side of the triple valve 11 and the transition pond 7
Upper end connection.
During practical application, backwash is also easy to produce vapour lock, and in order to avoid vapour lock is produced, triple valve 11 described in the present embodiment with
A vapour lock for destroying vapour lock is additionally provided between the transition pond 7 and destroys well 12, so that recoil water outlet smoothly can be flowed
Go out.
The handling process of the sewage disposal system based on two-stage aerated biological filter of the present embodiment is as follows：First by adjusting
Section pond is adjusted to the water quality of sewage, the water yield, then by elevator pump by the sewage input in regulating reservoir into the first aeration
Coagulation is carried out in biofilter, after coagulation, is exposed by the overflow pipe overflow at the top of the first BAF to second
Two stage treatment is carried out in gas biofilter, and two stage treatment can normally overflow water outlet；Wherein, in order to improve at coagulation and two grades
The treatment effeciency of reason, the present embodiment improve the aeration power in the first BAF, and then improve the filter of the first aeration and biological
Oxygen concentration in pond, makes the oxygen concentration in the first BAF more than the oxygen concentration in the second BAF, improves
Oxygen concentration in first BAF can be conducive to cultivating the excellent of the dirty Organic substance in water of oxidation and some reducing substanceses
Gesture bacterial classification, and then promote the removal efficiency of organic matter and reducing substances；And the second BAF is oppositely arranged as relatively low
Oxygen concentration, then be conducive to cultivate remove ammonia nitrogen dominant bacteria, to promote the removal efficiency of ammonia nitrogen；The present embodiment is by control
The oxygen concentration of the first BAF and the second BAF, so respectively control culture the first BAF and
The dominant bacteria for removing organic matter, reducing substances and ammonia nitrogen in second BAF, so as to improve on the whole
The removal efficiency of machine thing, reducing substances and ammonia nitrogen.Meanwhile, the present embodiment will backwash early stage by a transition pond when backwashing
Muddy water be back in regulating reservoir, reduce delivery turbidity, and backwashing water by the first BAF and the second aeration
Biofilter enters transition pond, is flowed freely under gravity into regulating reservoir by transition pond, it is to avoid what water pump was conveyed
Expense, reduces cost of sewage disposal.
Compared with prior art, the oxygen concentration that on the one hand the utility model is adjusted in the first BAF of aeration is more than
Oxygen concentration in second BAF, to improve oxidation operation efficiency and the life of the second aeration of the first BAF
Thing filter tank except ammonia nitrogen efficiency, on the other hand by the height of the first BAF more than the second BAF height
In order to sewage in the first BAF can overflow to the second BAF, reduce sewage transport energy ezpenditure.
The above specific embodiment of the present utility model, does not constitute the restriction to the utility model protection domain.
Any various other corresponding change made according to technology design of the present utility model and deformation, should be included in practical
In new scope of the claims.
Claims (6)
1. a kind of sewage disposal system based on two-stage aerated biological filter, it is characterised in that including regulating reservoir, elevator pump,
One BAF, the second BAF, the water inlet end of the elevator pump is connected with the regulating reservoir, water side and institute
The connection of the first BAF is stated, at the top of first BAF, it is provided with an overflow pipe, the overflow pipe goes out
Water end (W.E.) is connected with the water inlet end of second BAF；Wherein, the height of first BAF is more than the
The height of two BAFs, and the aeration power of first BAF is more than the exposure of the second BAF
Qigong rate simultaneously makes oxygen concentration in first BAF be more than the oxygen concentration in second BAF.
2. sewage disposal system according to claim 1, it is characterised in that the sewage disposal system is also including a recoil
Cleaning device, the back purge system include being connected with first BAF and the second BAF lower end respectively
First backwash water inlet pipe and second backwash water inlet pipe, be respectively arranged at first BAF and the second aeration
First backwash outlet pipe of biofilter upper end and the second backwash outlet pipe, the water inlet end of the first backwash outlet pipe
Multiple first effluent troughs connected with first BAF are provided with, the water inlet end of the second backwash outlet pipe is arranged
There are multiple second effluent troughs connected with second BAF.
3. sewage disposal system according to claim 2, it is characterised in that multiple first effluent troughs are along described first
The length direction of backwash outlet pipe is evenly arranged, length of multiple second effluent troughs along the described second backwash outlet pipe
Direction is evenly arranged.
4. the sewage disposal system according to Claims 2 or 3, it is characterised in that the sewage disposal system also includes
The transition pond being connected with the water side of the described first backwash outlet pipe and the second backwash outlet pipe, the transition bottom of pond portion sets
Drainpipe, return duct is equipped with, the return duct is less than the drainpipe and the water side of the return duct and the regulating reservoir top
End connection.
5. sewage disposal system according to claim 4, it is characterised in that the sewage disposal system also includes a threeway
Valve, two water inlet ends of the triple valve are connected with the first backwash outlet pipe and the second backwash outlet pipe respectively, and described three
The water side of port valve is connected with the upper end in the transition pond.
6. sewage disposal system according to claim 5, it is characterised in that between the triple valve and the transition pond also
It is provided with a vapour lock for destroying vapour lock and destroys well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620972914.9U CN206033496U (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system based on two -stage bological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620972914.9U CN206033496U (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system based on two -stage bological aerated filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206033496U true CN206033496U (en) | 2017-03-22 |
Family
ID=58302970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620972914.9U Expired - Fee Related CN206033496U (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system based on two -stage bological aerated filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206033496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145552A (en) * | 2016-08-29 | 2016-11-23 | 武汉东川自来水科技开发有限公司 | A kind of sewage disposal system based on two-stage aerated biological filter and method |
| CN112979077A (en) * | 2021-03-01 | 2021-06-18 | 福建工程学院 | Village-house-attached low-power tower type biological filter |
-
2016
- 2016-08-29 CN CN201620972914.9U patent/CN206033496U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145552A (en) * | 2016-08-29 | 2016-11-23 | 武汉东川自来水科技开发有限公司 | A kind of sewage disposal system based on two-stage aerated biological filter and method |
| CN112979077A (en) * | 2021-03-01 | 2021-06-18 | 福建工程学院 | Village-house-attached low-power tower type biological filter |
| CN112979077B (en) * | 2021-03-01 | 2022-11-18 | 福建工程学院 | Village-house-attached low-power tower type biological filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20210829 |