CN206970300U - Nitrification liquid reflux and biological reaction pool for biological reaction pool - Google Patents
Nitrification liquid reflux and biological reaction pool for biological reaction pool Download PDFInfo
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- CN206970300U CN206970300U CN201720906829.7U CN201720906829U CN206970300U CN 206970300 U CN206970300 U CN 206970300U CN 201720906829 U CN201720906829 U CN 201720906829U CN 206970300 U CN206970300 U CN 206970300U
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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
Abstract
This application discloses a kind of nitrification liquid reflux and biological reaction pool for biological reaction pool, nitrification liquid reflux, including it is disposed adjacent and is installed in the air plug-flow area and accumulator tank, accumulator tank for sharing wall on shared wall；Share the passage that air plug-flow area and accumulator tank are communicated with wall；The side wall of accumulator tank is provided with flashboard, and flashboard can move up and down in vertical direction.Biological reaction pool includes above-mentioned nitrification liquid reflux.Nitrification liquid reflux provided by the utility model for biological reaction pool is using air plug-flow as theoretical foundation, the accumulator tank in connection anoxic zone and low-oxygen aeration area is set, utilize the air plug-flow area in low-oxygen aeration area, nitrification liquid backflow energy consumption is substantially reduced, solves the problems such as few traditional nitrification liquid capacity of returns, high energy consumption.
Description
Technical field
The disclosure relates generally to sewage treatment area, more particularly to a kind of nitrification liquid reflux for biological reaction pool
And biological reaction pool.
Background technology
With the development of society, the problem of water scarcity getting worse, water is by as a weight of restriction social development
Want factor.People also increasingly pay attention to the exploitation and improvement of water technology.
Biologic process for treating sewage is one kind more special in sewage treatment process, also known as activated sludge process.Activity
Sludge is a kind of by the method that Microbial Communities in Activated Sludge is the pollutant such as nitrogen, phosphorus in operative body removal sewage, can be divided
For aerobic method and anaerobic process etc..
AO Process is also anaerobic-aerobic Process, and A (Anacrobic) is anaerobism section, use and denitrogenation dephosphorizing；O(Oxic)
It is aerobic section, for removing the organic matter in water removal.
AAO Process is also known as A2O methods, be English Anaerobic-Anoxic-Oxic first letters abbreviation (anaerobism-
Anaerobic-aerobic method), it is a kind of conventional sewage treatment process, available for B-grade sewage processing or three-level sewage disposal, Yi Jizhong
Water circulation, there is good denitrogenation dephosphorization effect.
Mainly reacted and carried out by nitration denitrification currently with the process of activated sludge process denitrogenation, nitrobacteria is aerobic
Under the conditions of by nitration reaction by mineralized nitrogen be nitrate, denitrifying bacteria realizes denitrification by nitre under anoxic conditions
Hydrochlorate is reduced to nitrogen and discharged into the atmosphere, and reaches the purpose of denitrogenation.Technological process mostly first passes through anaerobic pond, anoxic pond is entered again
Act charitably oxygen, be the denitrification effect of reinforced anaerobic section (or anoxic section) therefore, it is carry out nitrification liquids backflow and is provided for denitrification process more
Sufficient nitrate nitrogen.
Nitrification liquid backflow at present is more to be carried out with pump apparatus such as axial-flow pumps, using axial-flow pump backflow exist capacity of returns it is small,
The shortcomings of high energy consumption, need badly and a kind of new nitrification liquid reflux is provided.
Utility model content
In view of drawbacks described above of the prior art or deficiency, it is expected that providing a kind of nitrification liquid for biological reaction pool flows back
Device and biological reaction pool.
In a first aspect, the utility model provides a kind of nitrification liquid reflux for biological reaction pool, including adjacent set
Put and be installed in the air plug-flow area and accumulator tank, the accumulator tank for sharing wall on the shared wall；
The opening in the air plug-flow area and the accumulator tank is communicated with the shared wall；The side of the accumulator tank
Wall is provided with flashboard, and the flashboard can move up and down in vertical direction.
Preferably, the air plug-flow area includes water conservancy diversion wall one, water conservancy diversion wall two and is arranged on the water conservancy diversion wall
Air impeller between one and the water conservancy diversion wall two, the water conservancy diversion wall one, the water conservancy diversion wall two share with described
Wall is connected, and the opening is between the water conservancy diversion wall one and the water conservancy diversion wall two；
The top of water conservancy diversion wall one is higher than liquid level, and the bottom of water conservancy diversion wall one separates with bottom of pond；The water conservancy diversion wall
Two tops are less than liquid level, and the bottom of water conservancy diversion wall two is connected with bottom of pond.
Preferably, the water conservancy diversion wall one is vertically arranged with the water conservancy diversion wall two.
Preferably, the air impeller includes installation frame, air feed supervisor and the sky being connected with air feed supervisor
Qi leel orchestration, the air distributor connect more gas manifolds, multiple micropores, the sky are uniformly provided with the gas manifold
Qi leel orchestration and the gas manifold are arranged on the installation frame.
Preferably, the air distributor includes the main distributor of inner hollow, is provided with the main distributor
Air inlet and at least two gas outlets, the air inlet connection supply supervisor of the main distributor, the distributor master
The gas outlet of body connects the gas manifold.
Preferably, the main distributor is strip and block structure, and the air inlet is arranged on the upper of the main distributor
Surface, the gas outlet are symmetricly set on the relative two sides of the main distributor；
And/or gas manifold described in the main distributor connection 2-12 roots.
Preferably, threaded one end of the gas manifold away from the supply supervisor connects plug.
Preferably, at least four draw ring is uniformly provided with the edge of the installation frame, the draw ring passes through slide fastener and fixation
Multiple drag hooks at the top of the pond body of biological reaction pool connect one to one.
Second aspect, the utility model additionally provide a kind of biological reaction pool, including above-mentioned nitrification liquid reflux and
Anoxic zone, low-oxygen aeration area and the settling zone for being disposed adjacent and being separated by partition wall successively, the anoxic zone expose with the hypoxemia
Gas area is disposed adjacent, and the anoxic zone, the low-oxygen aeration area and the settling zone are disposed adjacent, and have water on the partition wall
Circulation road, the partition wall shared between the anoxic zone and the low-oxygen aeration area is the first midfeather；The settling zone and institute
Stating between anoxic zone also has sludge reflux passage；
The anoxic zone is divided into first anoxic zone in the remote low-oxygen aeration area and close to described low by the first partition wall
Second anoxic zone of oxygen aeration zone；
The low-oxygen aeration area is divided into close to the first low-oxygen aeration area of the anoxic zone and away from institute by the second partition wall
State the second low-oxygen aeration area of anoxic zone；
First midfeather is the shared wall, and the air plug-flow area is arranged on the first low-oxygen aeration area
Interior, the accumulator tank is located in second anoxic zone.
The third aspect, the utility model additionally provide a kind of biological reaction pool, including above-mentioned nitrification liquid reflux and
Anaerobic zone, anoxic zone, low-oxygen aeration area and the settling zone for being disposed adjacent and being separated by partition wall successively, the partition wall are provided with water
Circulation road；The partition wall shared between the anoxic zone and the low-oxygen aeration area is the second midfeather；The settling zone and institute
Stating between anoxic zone also has sludge reflux passage；
The anoxic zone is divided into close to the first anoxic zone of the anaerobic zone by the 3rd partition wall and exposed close to the hypoxemia
Second anoxic zone in gas area；
The low-oxygen aeration area is divided into close to the first low-oxygen aeration area of the anoxic zone and away from institute by the 4th partition wall
State the second low-oxygen aeration area of anoxic zone；
Second midfeather is the shared wall, and the air plug-flow area is arranged on the first low-oxygen aeration area
Interior, the accumulator tank is located in second anoxic zone.
Nitrification liquid reflux provided by the utility model for biological reaction pool using air plug-flow as theoretical foundation, if
The accumulator tank in connection anoxic zone and low-oxygen aeration area is put, using the air plug-flow area in low-oxygen aeration area, substantially reduces nitrification liquid
Flow back energy consumption, solves the problems such as few traditional nitrification liquid capacity of returns, high energy consumption.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the top view for the nitrification liquid reflux for biological reaction pool that the embodiment of the utility model one provides；
Fig. 2 is the side view of the nitrification liquid reflux shown in Fig. 1；
Fig. 3 be Fig. 1 shown in nitrification liquid reflux in air impeller structural representation；
Fig. 4 be Fig. 1 shown in nitrification liquid reflux in air distributor structural representation；
Fig. 5 be Fig. 1 shown in nitrification liquid reflux in air impeller side structure schematic diagram；
Fig. 6 is the structural representation for the biological reaction pool that another embodiment of the utility model provides；
Fig. 7 is the structural representation for the biological reaction pool that the another embodiment of the utility model provides；
Fig. 8 is the structural representation for the biological reaction pool that the utility model another embodiment provides.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.Further need exist for illustrating
, for the ease of description, the part related to utility model is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment 1
Referring to figs. 1 to Fig. 5, a kind of nitrification liquid reflux for biological reaction pool, including phase are present embodiments provided
Neighbour sets and is installed in the air plug-flow area 1 and accumulator tank 2, accumulator tank 2 for sharing wall on shared wall；
Share the opening 3 that air plug-flow area 1 and accumulator tank 2 are communicated with wall；The side wall of accumulator tank 2 is provided with flashboard
4, flashboard can move up and down in vertical direction.
In the embodiment, by the air force in air plug-flow area, lifting plug-flow is carried out to sewage using density contrast, significantly
Reduce the energy consumption of nitrification liquid backflow；Backflow is needed to open flashboard when closing flashboard nitrification liquid, it is not necessary to which flow back nitrification liquid
When, flashboard is closed, capacity of returns can be control effectively by the opening degree of backflash size and flashboard；Solves traditional nitre
The problems such as changing few liquid capacity of returns, high energy consumption.
Further, water conservancy diversion wall 1, water conservancy diversion wall 26 are included in air plug-flow area and is arranged on water conservancy diversion wall 1
Air impeller 7 between water conservancy diversion wall 26,
Water conservancy diversion wall 1, water conservancy diversion wall 26 are connected with shared wall, and opening is located at water conservancy diversion wall 1 and training wall
Between body 26；The top of water conservancy diversion wall 1 is higher than liquid level, and the bottom of water conservancy diversion wall 1 separates with bottom of pond；The top of water conservancy diversion wall 26 is low
In liquid level, the bottom of water conservancy diversion wall 26 is connected with bottom of pond.
Sewage level is less than the top of water conservancy diversion wall one and is higher than the top of water conservancy diversion wall two, and is being led by air impeller
Bubble is produced between stream wall one and water conservancy diversion wall two, sewage mixes with bubble so that the sewage density between two walls is less than
The sewage density in the outside of water conservancy diversion wall one, in the presence of rising in pressure differential and gas and bringing water to flow, water conservancy diversion wall one
The sewage in outside can be flowed into constantly in water conservancy diversion wall one and water conservancy diversion wall two via the bottom of water conservancy diversion wall one, made in air tightness difference
Under so that the liquid level of the inner side of water conservancy diversion wall two is higher than the liquid level in outside, and prevents liquid level from arbitrarily flowing by water conservancy diversion wall one,
So that liquid stream constantly flows out through the top of water conservancy diversion wall two, without water acquisition pump reflux or diving mixer, not only avoid consumption compared with
High-energy, also with preferable sewage plug-flow effect.
Further, water conservancy diversion wall 1 is vertically arranged with water conservancy diversion wall 26.
From water conservancy diversion wall one to the direction plug-flow of water conservancy diversion wall two, while there is part nitrification liquid to enter accumulator tank by opening.
Water conservancy diversion wall 1 is vertically arranged with water conservancy diversion wall 26, is arranged such, between water conservancy diversion wall one and water conservancy diversion wall two, upper and lower
Through-flow bore is consistent on direction, can ensure plug-flow rate stabilization.
In other embodiments, water conservancy diversion wall 1 can be also obliquely installed according to being actually needed.Such as water conservancy diversion wall one
Angle of inclination can be 45 degree, its top towards water conservancy diversion wall 26, i.e., water conservancy diversion wall 1 apart from water conservancy diversion wall 26 from its bottom extremely
Top is gradually short, into horn mouth formula.
Further, air impeller 7 includes installation frame 8, air feed supervisor 9 and the air being connected with air feed supervisor 9
Distributor 10, air distributor 11 connect more gas manifolds 12, and multiple micropores 13, air distribution are uniformly provided with gas manifold
Device 11 and gas manifold 12 are arranged on installation frame 8.
Air is provided to gas manifold through supply supervisor in the present embodiment, is realized by the micropore on gas manifold to sewage
Plug-flow.Wherein, installation frame is welded by angle bar, and the function that installation frame may act as counterweight frame causes whole air plug-flow
Device is submerged in sewage.
Further, air distributor 11 includes the main distributor 14 of inner hollow, main distributor 14 be provided with into
The gas outlet 16 of gas port 15 and at least two, the air inlet connection supply supervisor of main distributor, the gas outlet of main distributor
Connect gas manifold.
Further, main distributor 14 is strip and block structure, and air inlet 15 is arranged on the upper surface of main distributor 14,
Gas outlet 16 is symmetricly set on the relative two sides of main distributor.In the embodiment, the relative both sides of main distributor 14
Gas manifold 12 is respectively connected with face, gas manifold 12 is symmetrical arranged on main distributor 14, by main distributor 14
Air is distributed in gas outlet 16 to the gas manifold 12 of both sides, such as the horizontal direction in Fig. 3 along installation frame, main distributor installation
At the horizontal middle part of installation frame, symmetrical configuration, it is shorter that air spreads the uniform time in gas manifold.
And/or main distributor connection 2-12 root gas manifolds, meet the needs of plug-flow, can according to water conservancy diversion wall one, lead
Flow the gas manifold that the space size between wall two sets respective numbers.
Further, threaded one end connection plug 17 of the gas manifold 12 away from supply supervisor 9, it is easy to disassemble, it is convenient empty
The cleaning and maintenance of gas impeller.
Further, at least four draw ring 8a is uniformly provided with the edge of installation frame, draw ring is by slide fastener and is fixed on life
Multiple drag hooks at the top of the pond body of thing reaction tank connect one to one, and facilitate and carry air impeller from water during maintenance and inspection
Go out.
One end of supply 9 air inlets away from air distributor of supervisor is connected with perforate flange 24, and supply supervisor is by opening
Hole flange is connected with the bellows of outside offer air, as shown in figure 5, the perforate flange 24 of 9 one end of connection supply supervisor is with connecting
The perforate flange for connecing bellows one end is connected, and then is connected supervisor is supplied with the bellows supplied.
Air impeller is simple in construction in the present embodiment, energy consumption is low and backflow is uniform.
The nitrification liquid reflux for biological reaction pool that the present embodiment provides, is moved using the air in air plug-flow area
Power, flashboard is opened, when promoting nitrification liquid flowing, promote part nitrification liquid to be back to accumulator tank, substantially reduce nitrification liquid backflow
Energy consumption, solves the problems such as few traditional nitrification liquid capacity of returns, high energy consumption.
Embodiment 2
Reference picture 6, a kind for the treatment of tank for AO techniques is present embodiments provided, including described in embodiment 1
Nitrification liquid reflux and anoxic zone 18, low-oxygen aeration area 19 and the settling zone for being disposed adjacent and being separated by partition wall successively
20, anoxic zone 18 is disposed adjacent with low-oxygen aeration area 19, and anoxic zone 18, low-oxygen aeration area 19 and settling zone 20 are disposed adjacent,
There is water stream channel, the partition wall shared between anoxic zone and low-oxygen aeration area is the first midfeather 21 on partition wall；Settling zone with
Also there is sludge reflux passage between anoxic zone；
Anoxic zone 18 is divided into the first anoxic zone 18a and close low-oxygen aeration area away from low-oxygen aeration area by the first partition wall
The second anoxic zone 18b；
Low-oxygen aeration area 19 is divided into close to the first low-oxygen aeration area 19a of anoxic zone and away from anoxic zone by the second partition wall
The second low-oxygen aeration area 19b；
First midfeather is to share wall, and air plug-flow area 1 is arranged on the first low-oxygen aeration area 19a water inlet end, is returned
Receive the top that groove 2 is located at the second anoxic zone.
The biological reaction pool for AO techniques in the present embodiment is integrated the biological reaction pool of setting, the biological reaction pool
When in use, sewage is introduced into anoxic zone 18, through being circulated in the first anoxic zone 18a and the second anoxic zone 18b, under anoxic conditions
It is that nitrogen removes from sewage that anti-nitration reaction, which is substantially carried out, by nitrate reduction, while the thermophilic phosphorus bacterium in activated sludge completes to lack
Oxygen releases removal of the process realization of phosphorus to phosphorus；The sewage for flowing through anoxic zone 18 is partly into low-oxygen aeration area 19, it is most of after
Continue and circulated in anoxic zone.Into the sewage in low-oxygen aeration area, by controlling the dissolved oxygen (being less than 0.5mg/L) in aeration tank,
The degraded to pollutants such as COD, ammonia nitrogen, total nitrogens is completed using microorganism, meanwhile, thermophilic phosphorus bacterium is organic using carbon source in low-oxygen environment
Thing provides energy and realizes increasing rapidly and breeding for cell, by H from external environment condition3PO4Intake is internal, is inhaled under low-oxygen environment
A large amount of phosphorus are received, anoxic zone 18, the low-oxygen aeration area 19 set by pond body, create a good anoxic-hypoxemia-precipitation row
The cyclic process put, by the phosphorus in sewage with mud discharging.
Effluent cycle is realized by air plug-flow area 1 in low-oxygen aeration area 19, when needing nitrification liquid to flow back, beaten
Gate open plate 4, the part of contaminated water in low-oxygen aeration area is under the air force in air plug-flow area, into accumulator tank 2；It need not nitrify
When liquid flows back, flashboard is closed；In the end of low-oxygen aeration area 19, a part of sewage continues cycling through repetition denitrogenation dephosphorizing, degraded
COD process；Another part sewage enters settling zone 20, realizes mud-water separation by inclined tube, upper strata clear water passes through through upper strata clear water
Water receiving tank is discharged, and lower floor's sludge settling is back to anoxic zone and the circular treatment for continuing to participate in sewage is mixed with water inlet.
In the present embodiment, on the one hand air plug-flow area promotes the circulation of sewage in low-oxygen aeration area, on the other hand, opening
In the case of flashboard, the recovered groove of sewage in low-oxygen aeration area is promoted to pass back into anoxic zone.
Embodiment 3
Reference picture 7, a kind for the treatment of tank for AAO techniques is present embodiments provided, including described in embodiment 1
Nitrification liquid reflux and anaerobic zone 22, anoxic zone 18, the low-oxygen aeration area 19 for being disposed adjacent and being separated by partition wall successively
With settling zone 20, partition wall is provided with water stream channel；Anaerobic zone, anoxic zone, low-oxygen aeration area are disposed adjacent successively, and anaerobic zone
22nd, anoxic zone 18, homogeneous precipitation area of low-oxygen aeration area 19 are disposed adjacent, between anoxic zone 18 and low-oxygen aeration area 19 share every
Wall is the second midfeather 23；Also there is sludge reflux passage between settling zone 20 and anoxic zone 22；
Anoxic zone 18 is divided into the first anoxic zone 18a close to anaerobic zone and the close to low-oxygen aeration area by the 3rd partition wall
Two anoxic zone 18b；
Low-oxygen aeration area 19 is divided into close to the first low-oxygen aeration area 19a of anoxic zone and away from anoxic zone by the 4th partition wall
The second low-oxygen aeration area 19b；
Second midfeather is to share wall, and air plug-flow area is arranged in the first low-oxygen aeration area, and accumulator tank is positioned at the
The top of two anoxic zones.
The biological reaction pool for AAO techniques in the present embodiment is integrated the biological reaction pool of setting, the biological respinse
When in use, sewage enters anaerobic zone 22, realizes denitrification denitrogenation, while the anaerobic bacteria in anaerobic zone under anaerobic in pond
It can be reacted by hydrolysis acidification and be lightened the load for follow-up sewage disposal.Then, sewage enters in the presence of pushing flow mixer and lacked
Oxygen area 18, it is that nitrogen removes from sewage to be substantially carried out anti-nitration reaction under anoxic conditions by nitrate reduction, and thermophilic phosphorus bacterium lacks
Oxygen releases phosphorus.The sewage for flowing through anoxic zone 2 is partly into low-oxygen aeration area 3, most of to continue to circulate in anoxic zone 2.
Into the sewage in low-oxygen aeration area 19, by controlling the dissolved oxygen (being less than 0.5mg/L) in aeration tank, micro- life is utilized
Thing completes the degraded to pollutants such as COD, ammonia nitrogen, total nitrogens, meanwhile, thermophilic phosphorus bacterium provides energy using carbon source organic matter in low-oxygen environment
Amount realizes increasing rapidly and breeding for cell, by H from external environment condition3PO4Intake is internal, and a large amount of phosphorus are absorbed under low-oxygen environment,
Anoxic zone 2, the low-oxygen aeration area 3 set by pond body, create being circulated throughout for a good anoxic-hypoxemia-precipitation discharge
Journey, by the phosphorus in sewage with mud discharging.
Effluent cycle is realized by air plug-flow area 1 in low-oxygen aeration area 19, when needing nitrification liquid to flow back, beaten
Gate open plate 4, the part of contaminated water in low-oxygen aeration area is under the air force in air plug-flow area, into accumulator tank 2；It need not nitrify
When liquid flows back, flashboard is closed；
Repetition denitrogenation is continued cycling through in the end of low-oxygen aeration area 19 (i.e. the second low-oxygen aeration area 19b) a part of sewage to remove
The process of phosphorus, the COD that degrades；Another part sewage flows into settling zone 20, realizes mud-water separation by inclined tube, upper strata clear water is through receiving water
Groove is discharged；Lower floor's sludge settling, inhale and scrape through Travelling Mud Sucker and Scraper, sludge is back to anaerobic zone through sludge reflux passage, with entering
Water mixes the circular treatment for continuing to participate in sewage.
In the present embodiment, on the one hand air plug-flow area promotes the circulation of sewage in low-oxygen aeration area, on the other hand, opening
In the case of flashboard, the recovered groove of sewage in low-oxygen aeration area is promoted to pass back into anoxic zone.
Embodiment 4
Reference picture 8, a kind for the treatment of tank for AAO techniques is present embodiments provided, including described in embodiment 1
Nitrification liquid reflux and anaerobic zone 22, anoxic zone 18, the low-oxygen aeration area 19 for being disposed adjacent and being separated by partition wall successively
With settling zone 20, partition wall is provided with water stream channel；Anaerobic zone 22, anoxic zone 18, low-oxygen aeration area 20 are disposed adjacent successively, anaerobism
Area 22 is disposed adjacent with low-oxygen area 18, and anaerobic zone 22, low-oxygen aeration area 19 are disposed adjacent with settling zone 20, anoxic zone 18 with it is low
The partition wall shared between oxygen aeration zone 19 is the second midfeather 23；Also lead between settling zone and anoxic zone with sludge reflux
Road；
Anaerobic zone 22 is divided into the first anaerobic zone 22a close to settling zone 20 and the close to anoxic zone 18 by the 5th partition wall
Two anaerobic zone 22b；
Anoxic zone 18 is divided into close to the first anoxic zone 18a of anaerobic zone 22 and close to low-oxygen aeration area 19 by the 3rd partition wall
The second anoxic zone 18b；
Low-oxygen aeration area 19 is divided into close to the first low-oxygen aeration area 19a of anoxic zone 18 and away from anoxic by the 4th partition wall
The second low-oxygen aeration area 19b in area；
Second midfeather is to share wall, and air plug-flow area 1 is arranged on the first low-oxygen aeration area 19a water inlet end, is returned
Receive the top that groove 2 is located at the second anoxic zone 18b.As shown in Figure 8, the first low-oxygen aeration area 19a left ends are provided with nitrification liquid
Air plug-flow area 1 in reflux, both can be by the first low-oxygen aeration area 19a sewage to the second low-oxygen aeration area 19b bands
It is dynamic, while nitrification liquid can be pushed into accumulator tank 2 in the case where opening flashboard 4 again, recovered groove is back to anoxic zone；
One low-oxygen aeration area 19a right-hand member sets one first air plug-flow area 25, and (structure in the first air plug-flow area 25 pushes away with air
Flow area 1), the first air plug-flow area 25 drives the second low-oxygen aeration area 19b sewage to the first low-oxygen aeration area 19a.
The AAO biochemical treatment tanks for the processing sewage that the present embodiment provides, include for handling the process of sewage：Sewage enters
Anaerobic zone 18, denitrification denitrogenation is realized under anaerobic, while the anaerobic bacteria in anaerobic pond can be reacted by hydrolysis acidification
Lightened the load for follow-up sewage disposal.
Then, sewage enters anoxic zone 18 in the presence of training wall, is substantially carried out anti-nitration reaction under anoxic conditions
It is that nitrogen removes from sewage by nitrate reduction, thermophilic phosphorus bacterium anoxic releases phosphorus.Flow through anoxic zone 18 sewage be partly into it is low
Oxygen aeration zone 19, it is most of to continue to circulate in anoxic zone 18.
Into the sewage in low-oxygen aeration area 19, by controlling the dissolved oxygen (being less than 0.5mg/L) in aeration tank, micro- life is utilized
Thing completes the degraded to pollutants such as COD, ammonia nitrogen, total nitrogens, meanwhile, thermophilic phosphorus bacterium provides energy using carbon source organic matter in low-oxygen environment
Amount realizes increasing rapidly and breeding for cell, by H from external environment condition3PO4Intake is internal, and a large amount of phosphorus are absorbed under low-oxygen environment,
Anoxic zone 18, the low-oxygen aeration area 19 set by pond body, create the circulation of a good anoxic-hypoxemia-precipitation discharge
Process, by the phosphorus in sewage with mud discharging.
Effluent cycle is realized by air plug-flow area in low-oxygen aeration area 19, and need that nitrification liquid flows back when
Wait, opening flashboard 4, the part of contaminated water in low-oxygen aeration area is under the air force in air plug-flow area, into accumulator tank 2；
Repetition denitrogenation is continued cycling through in the end of low-oxygen aeration area 19 (i.e. the second low-oxygen aeration area 19b) a part of sewage to remove
The process of phosphorus, the COD that degrades；Another part sewage flows into settling zone, realizes mud-water separation by inclined tube, upper strata clear water is through effluent trough
Discharge；Lower floor's sludge settling, inhale and scrape through Travelling Mud Sucker and Scraper, sludge is back to anaerobic zone through sludge reflux passage, with water inlet
Mixing continues to participate in the circular treatment of sewage.
In the present embodiment, on the one hand air plug-flow area promotes the circulation of sewage in low-oxygen aeration area, on the other hand, opening
In the case of flashboard, the recovered groove of sewage in low-oxygen aeration area is promoted to pass back into anoxic zone.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that utility model scope involved in the application, however it is not limited to what the particular combination of above-mentioned technical characteristic formed
Technical scheme, while should also cover in the case where not departing from utility model design, by above-mentioned technical characteristic or its be equal
Other technical schemes that feature is combined and formed.Such as features described above has with (but not limited to) disclosed herein
The technical scheme that the technical characteristic for having similar functions is replaced mutually and formed.
Claims (10)
- A kind of 1. nitrification liquid reflux for biological reaction pool, it is characterised in thatIncluding being disposed adjacent and being installed in the party wall with the air plug-flow area and accumulator tank, the accumulator tank for sharing wall On body；The opening in the air plug-flow area and the accumulator tank is communicated with the shared wall；In the side wall of the accumulator tank Provided with flashboard, the flashboard can move up and down in vertical direction.
- 2. the nitrification liquid reflux according to claim 1 for biological reaction pool, it is characterised in thatThe air plug-flow area includes water conservancy diversion wall one, water conservancy diversion wall two and is arranged on the water conservancy diversion wall one and the water conservancy diversion Air impeller between wall two, the water conservancy diversion wall one, the water conservancy diversion wall two connect with the party wall body phase, and institute Opening is stated between the water conservancy diversion wall one and the water conservancy diversion wall two；The top of water conservancy diversion wall one is higher than liquid level, and the bottom of water conservancy diversion wall one separates with bottom of pond；The water conservancy diversion wall two pushes up End is less than liquid level, and the bottom of water conservancy diversion wall two is connected with bottom of pond.
- 3. the nitrification liquid reflux according to claim 2 for biological reaction pool, it is characterised in that the training wall Body one is vertically arranged with the water conservancy diversion wall two.
- 4. the nitrification liquid reflux according to claim 2 for biological reaction pool, it is characterised in thatThe air impeller includes installation frame, air feed supervisor and the air distributor being connected with air feed supervisor, institute State air distributor and connect more gas manifolds, be uniformly provided with multiple micropores on the gas manifold, the air distributor and The gas manifold is arranged on the installation frame.
- 5. the nitrification liquid reflux according to claim 4 for biological reaction pool, it is characterised in that the air point Orchestration includes the main distributor of inner hollow, and air inlet and at least two gas outlets are provided with the main distributor, The air inlet connection supply supervisor of the main distributor, the gas outlet connection supply branch of the main distributor Pipe.
- 6. the nitrification liquid reflux according to claim 5 for biological reaction pool, it is characterised in that the distributor Main body is strip and block structure, and the air inlet is arranged on the upper surface of the main distributor, and the gas outlet is symmetricly set on On the relative two sides of the main distributor；And/or gas manifold described in the main distributor connection 2-12 roots.
- 7. the nitrification liquid reflux according to claim 4 for biological reaction pool, it is characterised in that the supply branch Threaded one end connection plug of the pipe away from the supply supervisor.
- 8. the nitrification liquid reflux according to claim 4 for biological reaction pool, it is characterised in that the installing frame At least four draw ring is uniformly provided with the edge of frame, the draw ring is by slide fastener and is fixed at the top of the pond body of biological reaction pool Multiple drag hooks connect one to one.
- A kind of 9. biological reaction pool, it is characterised in that including the nitrification liquid reflux described in claim any one of 1-7 and Anoxic zone, low-oxygen aeration area and the settling zone for being disposed adjacent and being separated by partition wall successively, the anoxic zone expose with the hypoxemia Gas area is disposed adjacent, and the anoxic zone, the low-oxygen aeration area and the settling zone are disposed adjacent, and have water on the partition wall Circulation road, the partition wall shared between the anoxic zone and the low-oxygen aeration area is the first midfeather；The settling zone and institute Stating between anoxic zone also has sludge reflux passage；The anoxic zone is divided into the first anoxic zone and close hypoxemia exposure away from the low-oxygen aeration area by the first partition wall Second anoxic zone in gas area；The low-oxygen aeration area is divided into close to the first low-oxygen aeration area of the anoxic zone by the second partition wall and lacked away from described The second low-oxygen aeration area in oxygen area；First midfeather is the shared wall, and the air plug-flow area is arranged in the first low-oxygen aeration area, The accumulator tank is located in second anoxic zone.
- A kind of 10. biological reaction pool, it is characterised in that including the nitrification liquid reflux described in claim any one of 1-7 with And anaerobic zone, anoxic zone, low-oxygen aeration area and the settling zone for being disposed adjacent and being separated by partition wall successively, the partition wall are provided with Water stream channel；The partition wall shared between the anoxic zone and the low-oxygen aeration area is the second midfeather；The settling zone with Also there is sludge reflux passage between the anoxic zone；The anoxic zone is divided into close to the first anoxic zone of the anaerobic zone and close to the low-oxygen aeration area by the 3rd partition wall The second anoxic zone；The low-oxygen aeration area is divided into close to the first low-oxygen aeration area of the anoxic zone by the 4th partition wall and lacked away from described The second low-oxygen aeration area in oxygen area；Second midfeather is the shared wall, and the air plug-flow area is arranged in the first low-oxygen aeration area, The accumulator tank is located in second anoxic zone.
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| CN201720906829.7U CN206970300U (en) | 2017-07-25 | 2017-07-25 | Nitrification liquid reflux and biological reaction pool for biological reaction pool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902946A (en) * | 2019-11-27 | 2020-03-24 | 苏州科技大学 | Integrated sewage treatment device |
| CN113149285A (en) * | 2021-05-11 | 2021-07-23 | 江西固特尤地坪材料有限公司 | Waste water treatment device in coating production process |
-
2017
- 2017-07-25 CN CN201720906829.7U patent/CN206970300U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902946A (en) * | 2019-11-27 | 2020-03-24 | 苏州科技大学 | Integrated sewage treatment device |
| CN110902946B (en) * | 2019-11-27 | 2021-11-16 | 苏州科技大学 | Integrated sewage treatment device |
| CN113149285A (en) * | 2021-05-11 | 2021-07-23 | 江西固特尤地坪材料有限公司 | Waste water treatment device in coating production process |
| CN113149285B (en) * | 2021-05-11 | 2022-06-24 | 江西固特尤地坪材料有限公司 | Waste water treatment device in coating production process |
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