CN207827959U - A kind of biological aerated filter of processing biogas slurry - Google Patents
A kind of biological aerated filter of processing biogas slurry Download PDFInfo
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- CN207827959U CN207827959U CN201721774558.0U CN201721774558U CN207827959U CN 207827959 U CN207827959 U CN 207827959U CN 201721774558 U CN201721774558 U CN 201721774558U CN 207827959 U CN207827959 U CN 207827959U
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- foam
- water outlet
- outlet
- backwash
- aerated filter
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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 discloses a kind of biological aerated filter of processing biogas slurry, including tank body, water inlet, water outlet, aeration filtration device, foam baffle and foam outlet, inlet and outlet are arranged on tank body, aeration filtration device is arranged in tank body and above water inlet and below water outlet, foam baffle includes vertical riser and horizonal base plate, vertical riser bottom end and horizonal base plate one end palette, vertical riser left and right ends are connected with inner tank wall, the horizonal base plate other end extends to water outlet direction and is equipped with the gap of 1.2~2.4cm between inner tank wall, and the height of horizonal base plate is placed between aeration filtration device and water outlet, foam outlet is arranged on tank body, peak higher than water outlet and less than foam baffle, foam outlet and water outlet are located at the both sides of foam baffle.By the way that foam baffle and foam outlet is arranged, dross and foam are effectively removed, avoids blocking water outlet, extends the work period, reduce maintenance cost.
Description
Technical field
The utility model is related to technical field of environment protection equipment, are filtered more particularly, to a kind of aeration and biological of processing biogas slurry
Pond.
Background technology
Biological aerated filter (biological aerated filter), abbreviation BAF are to develop in America and Europe the end of the eighties
A kind of New biological membrane method sewage treatment process to get up.The technique has removal SS, COD, BOD, nitrification, denitrogenation, dephosphorization etc.
Effect, has many advantages, such as that small, floor space is small, treatment effeciency is high, effluent quality is good, convenient operation and management.Aeration and biological
Filter tank merges biodegradable with two kinds of processing procedures of adsorption filtration in same unitary reactor, gives full play to the life of microorganism
Object metabolism, bioflocculation, the physical absorption and retention of biomembrane and filler and interior point along water (flow) direction food chain of reactor
Grade predation, realizes the efficient removing of pollutant.According to the flow direction in biological aerated filter, upward flow can be divided into under
To stream biological aerated filter, since upflow aeration biofilter is close to ideal filter tank, thus in Practical Project using compared with
It is more.
But biological aerated filter will produce a large amount of foam and dross when handling biogas slurry, in the long-term use,
With the continuous accumulation of dross and foam, water outlet is eventually blocked, if it find that liquid in pond can be caused to overflow not in time, damage
Bad biological aerated filter increases maintenance cost if finding to be also required to artificial cleaning water outlet in time.
In the prior art, Publication No. CN106745685A solve be initial stage water outlet when because between water purification and overflow launder compared with
Bad problem is discharged caused by big tension；It is steady to be rapidly reached that Publication No. CN102464402A then uses quick spoil disposal method
State operating status；Notification number is the problem of water process cannot clean simultaneously with filtrate cleaning for CN103359826B solutions.It is existing
Have in technology and how effectively to solve the problems, such as that dross foam blocks water outlet there are no open.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of can effectively remove dross and bubble at work
Foam avoids the biological aerated filter for blocking water outlet, extends the work period of biological aerated filter, reduce maintenance cost.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of biological aerated filter of processing biogas slurry, including tank body, water inlet, water outlet, aeration filtration device, foam gear
Plate and foam outlet, the inlet and outlet are arranged on the tank body, and the aeration filtration device is arranged in the tank
Internal portion and above the water inlet and below the water outlet, the foam baffle includes vertical riser and horizontal base
Plate, bottom end and the described horizonal base plate one end palette of the vertical riser, the vertical riser left and right ends and the tank
Internal wall is connected, and the other end of the horizonal base plate extends to the water outlet direction and is equipped between the inner tank wall
The gap of 1.2~2.4cm, and the height of the horizonal base plate is placed between the aeration filtration device and the water outlet, institute
It states foam outlet to be arranged on the tank body, highest of the foam outlet higher than the water outlet and less than the foam baffle
Point, the foam outlet and the water outlet are located at the both sides of the foam baffle.
Preferably, water outlet weir plate is arranged in the water outlet, and peak is less than the foam baffle peak, minimum point
Higher than the foam baffle minimum point.
Preferably, spray tube is arranged in the top of the tank, and minimum point is higher than the peak of the foam baffle.
Preferably, the tank base is equipped with evacuation port.
Preferably, the aeration filtration device includes supporting plate, the packing layer on the supporting plate and is located at described
Aeration opening inside packing layer, the supporting plate are equipped with the hole of regular distribution.
Preferably, further include back purge system, the back purge system includes the backwash being arranged on the tank body
Water inlet, backwash air inlet and backwash water outlet, the backwash water inlet be less than the water inlet, it is described backwash into
Gas port is less than the supporting plate, and the backwash water outlet is in the lower section of the foam outlet.
Preferably, the backwash water outlet setting backwash water outlet weir plate, peak are less than foam baffle highest
Point, when provided with water outlet weir plate, the peak for backwashing water outlet weir plate is less than water outlet weir plate peak.
The beneficial effects of the utility model：The biological aerated filter of the utility model is simple in structure, water distribution is uniform, by setting
Foam baffle and foam outlet are set, can effectively stop and removes foam and dross, prevents water outlet from blocking, extends aeration and biological
The work period in filter tank, reduce maintenance cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the biological aerated filter in the utility model embodiment；
In figure：1- tank bodies, 2- water inlets, 3- water outlets, 4- foam baffles, 5- foam outlets, 6- water outlet weir plates, 7- sprays
Pipe, 8- evacuation ports, 9- supporting plates, 10- packing layers, 11- aeration openings, 12- backwash water inlets, 13- backwash air inlet, 14-
Water outlet is backwashed, 15- backwashes water outlet weir plate.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not limited to the scope of protection of the utility model for illustrating the utility model.
As shown in Figure 1, the present embodiment provides a kind of biological aerated filter of processing biogas slurry, including tank body 1, water inlet 2, go out
The mouth of a river 3, aeration filtration device, foam baffle 4 and foam outlet 5, wherein water inlet 2 and water outlet 3 are arranged on tank body 1, expose
For the setting of gas filter device in 1 inside of tank body and above water inlet 2 and below water outlet 3, foam baffle 4 includes vertical vertical
Plate and horizonal base plate, bottom end and the horizonal base plate one end palette of vertical riser, vertical riser left and right ends and 1 inner wall of tank body
It is connected, the other end of horizonal base plate extends to 3 direction of water outlet and is equipped between 1 inner wall of tank body the gap of 1.2~2.4cm,
And the height of horizonal base plate is placed between aeration filtration device and water outlet 3, foam outlet 5 is arranged on tank body 1, foam outlet
5 peak higher than water outlet 3 and less than foam baffle 4, foam outlet 5 and water outlet 3 are located at the two of foam baffle 4
Side.
When biological aerated filter works, water inlet 2 and water outlet 3 are opened, the supernatant of biogas slurry after precipitation is from water inlet 2
Into tank body 1, then the processing of the aeration filtration device by being arranged above water inlet 2, the water that obtains that treated, while generating bubble
Foam and dross.Treated water reaches water outlet 3 from the gap between 1 inner wall of 4 horizonal base plate of foam baffle and tank body to upstream
After be discharged；When water level is higher than 4 horizonal base plate of foam baffle in tank body 1, due to foam and the small upper layer for floating on water of dross density,
And the gap between 1 inner wall of 4 horizonal base plate of foam baffle and tank body only has 1.2~2.4cm, so 90% foam and dross meeting
Stopped by foam baffle 4, is largely accumulated as the working time elapses foam and dross, when accumulation reaches the height of foam outlet 5,
Just it is discharged from foam outlet 5.
Based on above-described embodiment, in the present embodiment, water outlet weir plate 6 is set, peak is less than foam baffle at water outlet 3
4 peaks, minimum point are higher than 4 minimum point of foam baffle.Treated water from 4 horizonal base plate of foam baffle and 1 inner wall of tank body it
Between gap to upstream, to overflow across water outlet weir plate 6 and get to water outlet 3, when water overflows across water outlet weir plate 6, density ratio water is big
Residue can be trapped, to be discharged it is cleaner, water outlet 3 is not easy to plug.
Based on above-described embodiment, in the present embodiment, spray tube 7 is arranged in 1 top of tank body, and minimum point is higher than foam baffle 4
Peak, open spray tube 7 spray water, can preferably limit foam height, prevent foam from crossing foam baffle 4.
Based on above-described embodiment, in the present embodiment, 1 bottom of tank body is equipped with evacuation port 8, when without using the equipment,
Evacuation port 8 is opened to drain the inside liquid.
Based on above-described embodiment, in the present embodiment, aeration filtration device includes supporting plate 9, the filler on supporting plate 9
Layer 10 and the aeration opening 11 inside packing layer 10, supporting plate 9 are equipped with the hole of regular distribution.Biological aerated filter works
When, water inlet 2 and water outlet 3 are opened, the supernatant of biogas slurry after precipitation enters tank body 1 from water inlet 2, then passes through supporting plate 9
The hole of upper regular distribution enters packing layer 10, and biogas slurry opens aeration opening 11 during upstream, is supplied oxygen for reactor, makes pollution
Object is decomposed in packing layer 10.
Based on above-described embodiment, in the present embodiment, biological aerated filter further includes back purge system, because aeration and biological is filtered
After a period of use, the biomembrane progressive additive in packing layer, suspended solids content is continuously increased in pond, leads to upper resistance
Increase, influence treatment effect, so being backwashed, the accumulation object in packing layer is removed.The back purge system packet
Include the backwash water inlet 12 being arranged on tank body 1, backwash air inlet 13 and backwash water outlet 14, backwash water inlet
12 are less than water inlet 2, and backwash air inlet 13 is less than supporting plate 9, backwashes water outlet 14 in the lower section of foam outlet 5, because
Foam height when freeboard is not achieved work when backwash.
When starting backwash, water inlet 2, foam outlet 5, water outlet 3 and drain 8 are closed, first opens backwash air inlet
Mouth 13 carries out " air purge ", by being passed through air to packing layer 10, a part of biofilm detachment in packing layer 10,3-5 can be made to divide
Backwash water inlet 12 is opened simultaneously after clock, is carried out " air water is washed ", most biomembrane will fall off after 8-10 minutes, then
Backwash air inlet 13 is closed, only carries out " washing ", water and biomembrane are discharged from backwash water outlet 14 after backwash, 1-
Backwash water inlet 12 is closed after 3 minutes, backwash terminates.
Based on above-described embodiment, in the present embodiment, setting backwash water outlet weir plate 15, highest at water outlet 14 are backwashed
Point is less than 6 peak of water outlet weir plate, and backwash 15 height of water outlet weir plate is less than water outlet weir plate 6, in this way in backwash process, punching
Sewage after washing will not flow out from water outlet 3 and pollute water outlet 3, and it is equal that setting backwash water outlet weir plate 15 can also play flow
Even effect.
Biological aerated filter provided by the utility model is simple in structure, water distribution is uniform, is gone out by foam baffle and foam
The setting of mouth, foam and dross can be effectively removed during handling biogas slurry, avoid blocking water outlet, to maintain stable fortune
Row reduces maintenance cost.
Finally, the preferred embodiment that these are only the utility model is not intended to limit the protection model of the utility model
It encloses.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of utility model.
Claims (7)
1. a kind of biological aerated filter of processing biogas slurry, which is characterized in that including tank body, water inlet, water outlet, aeration filtration dress
It sets, foam baffle and foam outlet, the inlet and outlet are arranged on the tank body, the aeration filtration device setting
In the tank interior and above the water inlet and below the water outlet, the foam baffle includes vertical riser
And horizonal base plate, bottom end and the described horizonal base plate one end palette of the vertical riser, the vertical riser left and right ends
Be connected with the inner tank wall, the other end of the horizonal base plate extend to the water outlet direction and with the inner tank wall it
Between be equipped with the gap of 1.2~2.4cm, and the height of the horizonal base plate be placed in the aeration filtration device and the water outlet it
Between, the foam outlet is arranged on the tank body, and the foam outlet is higher than the water outlet and is less than the foam baffle
Peak, the foam outlet and the water outlet are located at the both sides of the foam baffle.
2. a kind of biological aerated filter of processing biogas slurry according to claim 1, which is characterized in that the water outlet is set
Water outlet weir plate is set, peak is less than the foam baffle peak, and minimum point is higher than the foam baffle minimum point.
3. a kind of biological aerated filter of processing biogas slurry according to claim 1, which is characterized in that the top of the tank is set
Spray tube is set, the spray tube minimum point is higher than the peak of the foam baffle.
4. a kind of biological aerated filter of processing biogas slurry according to claim 1, which is characterized in that the tank base is set
There is evacuation port.
5. a kind of biological aerated filter of processing biogas slurry according to claim 1, which is characterized in that the aeration filtration dress
Set the packing layer including supporting plate, on the supporting plate and the aeration opening inside described filler layer, the supporting plate
It is equipped with the hole of regular distribution.
6. a kind of biological aerated filter of processing biogas slurry according to claim 5, which is characterized in that further include backwash dress
It sets, the back purge system includes the backwash water inlet being arranged on the tank body, backwash air inlet and backwash water outlet
Mouthful, the backwash water inlet is less than the water inlet, and the backwash air inlet is less than the supporting plate, and the recoil washes out
The mouth of a river is in the lower section of the foam outlet.
7. a kind of biological aerated filter of processing biogas slurry according to claim 6, which is characterized in that the backwash water outlet
Setting backwash water outlet weir plate, peak are less than foam baffle peak at mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721774558.0U CN207827959U (en) | 2017-12-18 | 2017-12-18 | A kind of biological aerated filter of processing biogas slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721774558.0U CN207827959U (en) | 2017-12-18 | 2017-12-18 | A kind of biological aerated filter of processing biogas slurry |
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| Publication Number | Publication Date |
|---|---|
| CN207827959U true CN207827959U (en) | 2018-09-07 |
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ID=63387857
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721774558.0U Active CN207827959U (en) | 2017-12-18 | 2017-12-18 | A kind of biological aerated filter of processing biogas slurry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371819A (en) * | 2021-07-06 | 2021-09-10 | 浙江工业大学 | Deep nitrogen and phosphorus removal device and method with iron-carbon micro-electrolysis and endogenous denitrification respectively coupled with shortcut nitrification/anaerobic ammonia oxidation |
-
2017
- 2017-12-18 CN CN201721774558.0U patent/CN207827959U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371819A (en) * | 2021-07-06 | 2021-09-10 | 浙江工业大学 | Deep nitrogen and phosphorus removal device and method with iron-carbon micro-electrolysis and endogenous denitrification respectively coupled with shortcut nitrification/anaerobic ammonia oxidation |
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