CN106495324A - The multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization and method - Google Patents
The multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization and method Download PDFInfo
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- CN106495324A CN106495324A CN201611024024.6A CN201611024024A CN106495324A CN 106495324 A CN106495324 A CN 106495324A CN 201611024024 A CN201611024024 A CN 201611024024A CN 106495324 A CN106495324 A CN 106495324A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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Abstract
The invention discloses a kind of multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization and method, including between pipe gallery and mud-water separation pond, between pipe gallery, side arranges the first Aerobic Pond, first anoxic pond, second Aerobic Pond, second anoxic pond, 3rd Aerobic Pond, 3rd anoxic pond and SBR ponds, first anaerobic pond and the first pre- anoxic pond are set on the left of the first Aerobic Pond, between pipe gallery, opposite side arranges the 4th Aerobic Pond, 4th anoxic pond, 5th Aerobic Pond, 5th anoxic pond, 6th Aerobic Pond, 6th anoxic pond and the 2nd SBR ponds, second anaerobic pond and the second pre- anoxic pond are set on the left of the 4th Aerobic Pond, mud-water separation pond connects the 3rd anoxic pond and the 6th anoxic pond, mud-water separation pond connects the first pre- anoxic pond and the second pre- anoxic pond.Multistage AO is become a kind of new combination type handling process with the fusion of SBR techniques by the present invention, has merged the principle and advantage of Multilevel A/O Technology and MSBR techniques.
Description
Technical field
The present invention relates to a kind of water treatment system and method, in particular, it is that to be related to a kind of high-efficient denitrification and dephosphorization multistage
AO+SBR sewage disposal reaction tanks and method.
Background technology
With the raising required by effluent quality, sewage disposal is sent out via the individually pollutant such as removal SS, BOD, COD
Open up denitrification dephosphorization technique technique.
A2Especially the multistage A/O techniques of segmental influent by anaerobism, anoxia, aerobic alternating and are divided for O techniques and its mutation
Point is intake come the function of realizing denitrogenation dephosphorizing.The multistage A/O techniques of segmental influent are due to rationally using carbon source preferably solving
Contradiction of the denitrogenation dephosphorizing to carbon source demand, progressively develops into the main flow handling process of denitrogenation dephosphorizing at present.
The multistage A/O techniques of segmental influent are made up of the A/O of multiple series connection, and returned sludge is entered from first section, and sewage is pressed
Enter from each anoxia section according to certain proportion.Formally see, the multistage A/O techniques of segmental influent belong to the model of rear-mounted denitrification
Farmland.In the ideal situation, the nitrification liquid that each section of aerobic zone produces in system is directly entered next section of anoxic zone and carries out anti-nitre
Change.Therefore, internal reflux facility need not be set in theory.From in denitrogenation mode, in addition to the An sections of end, other mixed liquors are both participated in
Denitrification process.Compared with traditional A/O techniques, the multistage A/O techniques of segmental influent can obtain higher while energy consumption is saved
Denitrification rate.But which is primarily present the shortcoming in terms of three：First, due to the supplement in anaerobism section without water-inlet carbon source, therefore dephosphorization
Efficiency need further to improve.2nd, when water-inlet carbon source is not enough, least significant end An sections only have aerobic section, are likely to result in water outlet TN and surpass
Mark, the main path for solving this method is that most latter end is aerobic arranges sludge internal reflux, removes nitrate nitrogen or minimizing by flowing back
The water inlet ratio of least significant end anoxia section.3rd, biological respinse section and precipitating phase separate, and take up an area larger.
SBR techniques are successfully developed by research due to due under its intrinsic denitrogenation dephosphorizing is less efficient in recent years
Go out MSBR techniques.The essence of the flow process of MSBR as tradition A2/O techniques, and by anaerobism, anoxia, aerobic alternating come
Realize the function of denitrogenation dephosphorizing.But the function of each reaction zone due to MSBR process strengthenings, it is more excellent to be that each dominant bacteria is created
No matter environment more and hydraulics, theoretically analyze, or the operation result of reality is seen, MSBR techniques are that biological phosphate-eliminating takes off
Nitrogen effect is ideal, meanwhile, the anaerobic zone of MSBR techniques is alternatively arranged as the anaerobic acidification section of system, to water inlet in macromolecule
Hardly degraded organic substance plays anaerobic hydrolysis effect, and the energy that polyP bacteria is discharged during releasing phosphorus is available for polyP bacteria active absorption second
Acid, H+ and e-, it is allowed to be stored in thalline with PHB forms, so as to promote the acidization of Organic substance, improves giving birth to for sewage
The property changed and the reaction rate of aerobic process, anaerobism, anoxia, the anaerobic zone that alternately makes of aerobic process simultaneously work as optimized choice
The effect of device.But MSBR techniques have inherent defect, as which is intake all by anaerobism Duan Houzhi anoxia section, aerobic section passes through
A large amount of internal reflux to anoxia sections carry out denitrification, and utilization of carbon source efficiency is less than the multistage A/O techniques of segmental influent, a large amount of internal reflux not
Enough energy efficient；In addition each SBR process sections aeration in MSBR ponds can not be connected in sequential again, cause the instantaneous peak supply of aerator,
It is unfavorable for the operation of aerator.
Content of the invention
The invention aims to overcoming deficiency of the prior art, mainly adopt anaerobism, lack in current denitrogenation dephosphorizing
Oxygen, aerobic alternating are realizing in denitrogenation dephosphorizing function this theoretical system framework, according to technological process, there is provided a kind of efficiently de-
The multistage AO+SBR sewage disposal reaction tanks of nitrogen dephosphorization and method, give cleverly pond type arrangement, by multistage AO and SBR works
Skill fusion becomes a kind of new combination type handling process, has merged the principle and advantage of Multilevel A/O Technology and MSBR techniques.
The purpose of the present invention can be achieved through the following technical solutions.
The multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization of the present invention, including between the pipe gallery that is arranged side by side
With mud-water separation pond, between the pipe gallery side be disposed with from left to right connect to each other the first Aerobic Pond, first
Anoxic pond, the second Aerobic Pond, the second anoxic pond, the 3rd Aerobic Pond, the 3rd anoxic pond and SBR ponds, first Aerobic Pond
Left side is provided with the first anaerobic pond and the first pre- anoxic pond, and first anaerobic pond is respectively communicated with the first pre- anoxic pond and first good
Oxygen pond,
Between the pipe gallery, opposite side is disposed with the 4th Aerobic Pond, the 4th anoxia for connecting to each other from left to right
Pond, the 5th Aerobic Pond, the 5th anoxic pond, the 6th Aerobic Pond, the 6th anoxic pond and the 2nd SBR ponds, on the left of the 4th Aerobic Pond
It is provided with the second anaerobic pond and the second pre- anoxic pond, second anaerobic pond is respectively communicated with the second pre- anoxic pond and the 4th aerobic
Pond,
First anaerobic pond, the first pre- anoxic pond, the first anoxic pond, the second anoxic pond and the 3rd anoxic pond are respectively connected with
First sewage water inlet pipe, second anaerobic pond, the second pre- anoxic pond, the 4th anoxic pond, the 5th anoxic pond and the 6th anoxic pond
The second sewage water inlet pipe is respectively connected with, SBR ponds and the 2nd SBR ponds are connected to the first outlet pipe and the second water outlet
Pipe, SBR ponds are connected with mud-water separation pond with the 2nd SBR ponds, and the mud-water separation pond is distinguished by supernatant liquid pipe
The 3rd anoxic pond and the 6th anoxic pond is connected, the mud-water separation pond is respectively communicated with the first pre- anoxic pond and second by sludge pipe
Pre- anoxic pond.
The first SBR ponds are connected with mud-water separation pond by reflux pump with the 2nd SBR ponds.
First Aerobic Pond, the second Aerobic Pond, the 3rd Aerobic Pond, the 4th Aerobic Pond, the 5th Aerobic Pond, the 6th aerobic
Pond, the first anoxic pond, the second anoxic pond, the 3rd anoxic pond, the 4th anoxic pond, the 5th anoxic pond, the 6th anoxic pond, a SBR
It is provided with and gas explosion in pond, the 2nd SBR ponds, the first anaerobic pond, the second anaerobic pond, the first pre- anoxic pond and the second pre- anoxic pond
The dissolved-oxygen content analyser of system interlink.
First anaerobic pond, the first pre- anoxic pond, the first Aerobic Pond, the first anoxic pond, the second Aerobic Pond, the second anoxia
Pond, the 3rd Aerobic Pond, the 3rd anoxic pond, SBR ponds constitute first series, second anaerobic pond, the second pre- anoxic pond,
4th Aerobic Pond, the 4th anoxic pond, the 5th Aerobic Pond, the 5th anoxic pond, the 6th Aerobic Pond, the 6th anoxic pond, the 2nd SBR ponds structure
Into second series, two series are while continuum micromeehanics, cyclic switching draining.
The purpose of the present invention can also be achieved through the following technical solutions.
The multistage AO+SBR combined sewage treatment methods of high-efficient denitrification and dephosphorization, comprise the following steps：
(1) after entering the preprocessed operation of factory's sewage, branch enters the first pre- anoxic pond, the second pre- anoxic pond, the first anaerobism
Pond, the second anaerobic pond, the first anoxic pond, the second anoxic pond, the 3rd anoxic pond, the 4th anoxic pond, the 5th anoxic pond, the 6th anoxia
Pond, after nitrification and denitrification effect respectively enters SBR ponds and the 2nd SBR ponds, enters mud-water separation pond；
(2) the 3rd anoxic pond and the 6th anoxic pond are delivered to respectively through the supernatant that mud-water separation pond is isolated, through muddy water
The sludge that separate tank is concentrated out respectively enters the first pre- anoxic pond by lifting and the second pre- anoxic pond is mixed with part of contaminated water, enters
Row anoxic denitrification denitrogenation；
(3) mud mixed liquid after anoxic denitrification denitrogenation, respectively enters the first anaerobic pond and the second anaerobic pond is released
Phosphorus, then respectively enteing the first Aerobic Pond and the 4th Aerobic Pond carries out nitration reaction, enters the first anoxic pond and the 4th anoxic pond
Carry out Denitrification, through subsequently repeat nitrification, respectively enter SBR ponds and the 2nd SBR ponds after Denitrification, enter
Enter mud-water separation pond, form circulation.
Described enter factory's sewage the first pre- anoxic pond, the first anaerobic pond, the first anoxia are delivered to by the first sewage water inlet pipe
Pond, the second anoxic pond, the 3rd anoxic pond, by the second sewage water inlet pipe be delivered to the second pre- anoxic pond, the second anaerobic pond, the 4th
Anoxic pond, the 5th anoxic pond, the 6th anoxic pond, and first sewage water inlet pipe and the second sewage water inlet pipe are while continuously enter
Water.
The first SBR ponds and the 2nd SBR ponds cyclic switching water outlet, intermittent drainage.
Compared with prior art, the beneficial effect brought by technical scheme is：
(1) present invention is provided with the dissolved-oxygen content analyser with gas explosion system interlink in OA sections and SBR sections, enables certainly
The dynamic adjustment blow rate required to save energy consumption, carry out and automatically control by the switching of cycle of operation and the sequential operation of each equipment；
(2) present invention is not separately provided second pond and backflow pump house using intensive integrated design and deep pool-type structure,
The technique loss of flood peak is saved, land utilization ratio is improve；The present invention retains water inlet for anaerobism section, for biological phosphate-eliminating,
Continuous anaerobic pond water inlet is greatly improved anaerobic zone BOD5And the concentration of VFA (volatile fatty acid), so as to improve dephosphorization effect
Really；
(3) present invention is composed in series with SBR system by multistage AO systems, has gathered the whole excellent of multistage AO and MSBR
Gesture, stable effluent quality and efficiently, and have stronger anti impulsion load ability；The fusion of multistage AO and SBR techniques is more preferable
Carbon source is make use of, most of aerobic amount is transferred to the AO ponds of continuous operation from SBR ponds in multistage AO sections branch continuum micromeehanics by which
In, solve the problems, such as that the utilization rate of equipment and installations in conventional sbr reactor pond is not high；
(4) present invention due to primary response section adopt multistage AO, therefore this technique compared with MSBR, reduce aerobic sludge return
Stream, improves the sludge concentration of origin or beginning conversion zone, improves anoxia section anti-nitration reaction speed, improve aerobic section nitration reaction
Speed；Most of conversion zone run using multistage AO modes, it is to avoid do not adapt to hydraulic blow when running using SBR merely
The problem of load；
(5) present invention has continued the setting in mud-water separation pond in MSBR techniques, by precipitating phase and mud-water separation in SBR ponds
The separation in pond, further improves the sludge concentration of exteenal reflux, improves the reaction rate of anoxia section, aerobic section.
Description of the drawings
Fig. 1 is the site plan of reaction tank in the present invention；
Fig. 2 is biological respinse section processing technological flow figure in the present invention.
Reference:The first anaerobic ponds of A1；The first pre- anoxic ponds of A2；The first Aerobic Ponds of A3；The first anoxic ponds of A4；A5 second
Aerobic Pond；The second anoxic ponds of A6；The 3rd Aerobic Ponds of A7；The 3rd anoxic ponds of A8；The first SBR ponds of A9；The first outlet pipes of A10；A11
One sewage water inlet pipe；The second anaerobic ponds of B1；The second pre- anoxic ponds of B2；The 4th Aerobic Ponds of B3；The 4th anoxic ponds of B4；B5 the 5th is aerobic
Pond；The 5th anoxic ponds of B6；The 6th Aerobic Ponds of B7；The 6th anoxic ponds of B8；The 2nd SBR ponds of B9；The second outlet pipes of B10；B11 second is dirty
Water water inlet pipe；C1 mud-water separations pond；C2 supernatant liquid pipes；C3 sludge pipes；Between D pipe galleries.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization of the present invention, as shown in figure 1, including being arranged side by side
D and mud-water separation pond C1 between pipe gallery, between the pipe gallery, D sides are disposed with for connecting to each other from left to right
One Aerobic Pond A3, the first anoxic pond A4, the second Aerobic Pond A5, the second anoxic pond A6, the 3rd Aerobic Pond A7, the 3rd anoxic pond A8 and
First SBR ponds A9, is provided with the first anaerobic pond A1 and the first pre- anoxic pond A2 on the left of the first Aerobic Pond A3, described first detests
Oxygen pond A1 is respectively communicated with the first pre- anoxic pond A2 and the first Aerobic Pond A3.
Between the pipe gallery D opposite sides be disposed with from left to right connect to each other the 4th Aerobic Pond B3, the 4th
Anoxic pond B4, the 5th Aerobic Pond B5, the 5th anoxic pond B6, the 6th Aerobic Pond B7, the 6th anoxic pond B8 and the 2nd SBR ponds B9, institute
State and on the left of the 4th Aerobic Pond B3, be provided with the second anaerobic pond B1 and the second pre- anoxic pond B2, the second anaerobic pond B1 is respectively communicated with
Second pre- anoxic pond B2 and the 4th Aerobic Pond B3.
The first anaerobic pond A1, the first pre- anoxic pond A2, the first anoxic pond A4, the second anoxic pond A6 and the 3rd anoxic pond
A8 is respectively connected with the first sewage water inlet pipe A11.The second anaerobic pond B1, the second pre- anoxic pond B2, the 4th anoxic pond B4, the 5th
Anoxic pond B6 and the 6th anoxic pond B8 are respectively connected with the second sewage water inlet pipe B11.The first SBR ponds A9 and the 2nd SBR ponds B9
The first outlet pipe A10 and the second outlet pipe B10 is connected to, a SBR ponds A9 and the 2nd SBR ponds B9 is by backflow
Pump is connected with exteenal reflux mud-water separation pond C1 (sludge concentration tank).The mud-water separation pond C1 is connected respectively by supernatant liquid pipe C2
Logical 3rd anoxic pond A8 and the 6th anoxic pond B8, the mud-water separation pond C1 are respectively communicated with the first pre- anoxic pond by sludge pipe C3
A2 and the second pre- anoxic pond B2.The first Aerobic Pond A3, the second Aerobic Pond A5, the 3rd Aerobic Pond A7, the 4th Aerobic Pond B3,
Five Aerobic Pond B5, the 6th Aerobic Pond B7, the first anoxic pond A4, the second anoxic pond A6, the 3rd anoxic pond A8, the 4th anoxic pond B4,
5th anoxic pond B6, the 6th anoxic pond B8, a SBR ponds A9, the 2nd SBR ponds B9, the first anaerobic pond A1, the second anaerobic pond B1,
The dissolved-oxygen content analyser with gas explosion system interlink is provided with first pre- anoxic pond A2 and the second pre- anoxic pond B2, is enabled certainly
The dynamic adjustment blow rate required to save energy consumption, carry out and automatically control by the switching of cycle of operation and the sequential operation of each equipment.
Every sewage disposal reaction tank is divided into two series, totally ten nine cells composition, wherein, the first anaerobic pond A1, the
One pre- anoxic pond A2, the first Aerobic Pond A3, the first anoxic pond A4, the second Aerobic Pond A5, the second anoxic pond A6, the 3rd Aerobic Pond
A7, the 3rd anoxic pond A8, a SBR ponds A9 constitute first series；Second anaerobic pond B1, the second pre- anoxic pond B2, the 4th good
Oxygen pond B3, the 4th anoxic pond B4, the 5th Aerobic Pond B5, the 5th anoxic pond B6, the 6th Aerobic Pond B7, the 6th anoxic pond B8, second
SBR ponds B9 constitutes second series；Two series are not while continuum micromeehanics, two series of batch drainings, water discharge time are overlapped.
The central bottom baffle plate for remaining MSBR reaction tanks is set between final stage anoxia section and SBR ponds, and which can be effective
The impact of hydraulic jet is avoided, so as to improve waterpower running status.Preformed precipitate before SBR ponds switch to sedimentation tank water outlet
Cheng Zhong, defines the sludge blanket of a high concentration in its bottom.The water inlet in the pond is entered by the bottom distribution channel in SBR ponds, is worn
Sludge blanket is crossed, sludge blanket plays a part of contact filtration, namely by the use of the nitrate in Aeration tank mixed liquor as oxygen
Source carries out while sludge autodigestion is stable filtering the float in water inlet.
In conjunction with shown in Fig. 2, the concrete mistake of the multistage AO+SBR combined sewage treatment methods of the high-efficient denitrification and dephosphorization of the present invention
Journey：
First, enter branch after the preprocessed operation of factory's sewage enter the first pre- anoxic pond A2 of AO+SBR reaction tanks, second
Pre- anoxic pond B2, the first anaerobic pond A1, the second anaerobic pond B1, the first anoxic pond A4, the second anoxic pond A6, the 3rd anoxic pond A8,
4th anoxic pond B4, the 5th anoxic pond B6, the 6th anoxic pond B8, respectively enter the after nitrification and denitrification effect repeatedly
One SBR ponds A9 and the 2nd SBR ponds B9, enters mud-water separation pond C1；Described enter factory's sewage by the first sewage water inlet pipe A11 convey
To the first pre- anoxic pond A2, the first anaerobic pond A1, the first anoxic pond A4, the second anoxic pond A6, the 3rd anoxic pond A8, by second
Sewage water inlet pipe B11 be delivered to the second pre- anoxic pond B2, the second anaerobic pond B1, the 4th anoxic pond B4, the 5th anoxic pond B6, the 6th
Anoxic pond B8, and the first sewage water inlet pipe A11 and the second sewage water inlet pipe B11 is while continuum micromeehanics；
Then, the supernatant that isolates through mud-water separation pond C1 is delivered to the 3rd anoxic pond A8 and the 6th anoxic pond respectively
B8, respectively enters the first pre- anoxic pond A2 and the second pre- anoxic pond B2 through the sludge that mud-water separation pond C1 is concentrated out by being lifted,
Mix with part of contaminated water, carry out anoxic denitrification denitrogenation, the abundant denitrification of the nitrate nitrogen of backflow；
Finally, the mud mixed liquid after anoxic denitrification denitrogenation, respectively enters the first anaerobic pond A1 and the second anaerobic pond B1,
Phosphorus is fully released rich in the sludge of phosphorus, the first Aerobic Pond A3 and the 4th Aerobic Pond B3 is then respectively enterd, to sewage in ammonia
Nitrogen carries out sufficient nitration reaction, and entering the first anoxic pond A4 and the 4th anoxic pond B4 afterwards carries out abundant Denitrification, warp
Later continue repeat nitrification, respectively enter a SBR ponds A9 and the 2nd SBR ponds B9 after Denitrification, enter mud-water separation pond
C1 carries out mud-water separation, forms circulation.
The first SBR ponds A9 and the 2nd SBR ponds B9 is alternately as sedimentation tank, cyclic switching water outlet, intermittent drainage.If
First SBR ponds A9 carries out hypoxia response first as sedimentation tank water outlet, then a SBR ponds A9, then carries out aerobic reaction, or alternately
Carry out anoxia, aerobic reaction.In anoxia, aerobic reaction stage, the mixed liquor of a SBR ponds A9 is back to muddy water by reflux pump
The supernatant of separate tank C1, mud-water separation pond C1 enters the 3rd anoxic pond A8, and precipitating sludge is through being lifted into the first pre- anoxia
Pond A2, is entered the first anaerobic pond A1 after anoxic denitrification denitrogenation and is mixed with part of contaminated water and release phosphorus, circulated successively.If second
, used as sedimentation tank water outlet, circulation theory is ibid for SBR ponds B9.
The sludge flowed back from a SBR ponds A9 or the 2nd SBR ponds B9 has been made 2～3 times dense by the mud-water separation pond C1
Contracting, while returning for the first pre- anoxic pond A2 and the first anaerobic pond A1 (or the second pre- anoxic pond B2 and second anaerobic pond B1) will be entered
Flow reduces more than 70%, so as to enhance the Nitrogen/Phosphorus Removal of system.As primary response section adopts multistage AO, so this
Technique need not arrange the reflux pump of internal reflux, a SBR ponds A9 or the 2nd SBR ponds B9 to mud-water separation pond C1 and can carry out change velocity modulation
Section, to ensure the sludge balance of whole system.
Similar with the system such as T-shaped oxidation ditch, Unitank, MSBR, multistage AO+SBR be also running is divided into different
Time period, in the different periods of same period, some units adopt different drive manners, to complete different process mesh
's.MSBR systems are composed in series with SBR system by traditional A2/O systems, and have gathered whole advantages of A2/O and SBR.
Typical AO+SBR techniques are divided into six periods (can arrange automatically adjustment) one service cycle, by three period groups
Into a half period.Within two adjacent half periods, in addition to the drive manner difference of sequencing batch pond, the operating side of remaining each unit
Formula is just the same.The persistent period of general day part is as shown in table 1：
Segment table during 1 AO-SBR process operations of table
| Period 1 | Period 2 | Period 3 | Period 4 | Period 5 | Period 6 |
| 30min | 60min | 30min | 30min | 60min | 30min |
Wherein, the period 1,2,3 is first half period, and the period 4,5,6 is second half period.Water outlet is in SBR ponds
A9 and the 2nd SBR ponds B9 cyclic switchings, as shown in table 2.
2 AO-SBR each cycle water outlets of table
Within first half period, what the 2nd SBR ponds B9 play a part of is sedimentation tank, and unit within second half period
First SBR ponds A9 plays sedimentation tank.
The backflow of AO-SBR techniques only has exteenal reflux, without sludge internal reflux.
The working condition in each pond of AO-SBR techniques was determined as shown in table 3 according to the period in each cycle period：
Each unit menu in the 3 AO-SBR process cycles cycles of table
Due to there is anoxia section before SBR sections, the SBR ponds of instant AO-SBR techniques are belonged to interval as MSBR techniques and are exposed
Gas, but a SBR ponds A9 can be connected in sequential with the 2nd SBR ponds B9 aeration in perfection, and the supply of air blast machine room can be made more equal
Even, there is no instantaneously high air quantity.
Although being described to the function and the course of work of the present invention above in conjunction with accompanying drawing, the invention is not limited in
Above-mentioned concrete function and the course of work, above-mentioned specific embodiment are only schematic, rather than restricted, ability
The those of ordinary skill in domain the present invention enlightenment under, without departing from present inventive concept and scope of the claimed protection situation
Under, a lot of forms can also be made, these are belonged within the protection of the present invention.
Claims (7)
1. multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization, it is characterised in that including the pipe gallery being arranged side by side
Between (D) and mud-water separation pond (C1), between the pipe gallery, (D) side is disposed with first for connecting to each other from left to right
Aerobic Pond (A3), the first anoxic pond (A4), the second Aerobic Pond (A5), the second anoxic pond (A6), the 3rd Aerobic Pond (A7), the 3rd lack
Oxygen pond (A8) and SBR ponds (A9), be provided with the left of the first Aerobic Pond (A3) the first anaerobic pond (A1) and first pre- lack
Oxygen pond (A2), the first anaerobic pond (A1) are respectively communicated with first pre- anoxic pond (A2) and the first Aerobic Pond (A3),
Between the pipe gallery (D) opposite side be disposed with from left to right connect to each other the 4th Aerobic Pond (B3), the 4th
Anoxic pond (B4), the 5th Aerobic Pond (B5), the 5th anoxic pond (B6), the 6th Aerobic Pond (B7), the 6th anoxic pond (B8) and second
SBR ponds (B9), are provided with the second anaerobic pond (B1) and second pre- anoxic pond (B2) on the left of the 4th Aerobic Pond (B3), and described
Two anaerobic ponds (B1) are respectively communicated with second pre- anoxic pond (B2) and the 4th Aerobic Pond (B3),
First anaerobic pond (A1), first pre- anoxic pond (A2), the first anoxic pond (A4), the second anoxic pond (A6) and the 3rd lack
Oxygen pond (A8) is respectively connected with the first sewage water inlet pipe (A11), the second anaerobic pond (B1), second pre- anoxic pond (B2), the 4th
Anoxic pond (B4), the 5th anoxic pond (B6) and the 6th anoxic pond (B8) are respectively connected with the second sewage water inlet pipe (B11), and described first
SBR ponds (A9) and the 2nd SBR ponds (B9) are connected to the first outlet pipe (A10) and the second outlet pipe (B10), and described first
SBR ponds (A9) are connected with mud-water separation pond (C1) with the 2nd SBR ponds (B9), and mud-water separation pond (C1) passes through supernatant liquid pipe
(C2) the 3rd anoxic pond (A8) and the 6th anoxic pond (B8) are respectively communicated with, and mud-water separation pond (C1) is by sludge pipe (C3) point
Lian Tong not first pre- anoxic pond (A2) and second pre- anoxic pond (B2).
2. multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization according to claim 1, it is characterised in that described
First SBR ponds (A9) are connected with mud-water separation pond (C1) by reflux pump with the 2nd SBR ponds (B9).
3. multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization according to claim 1, it is characterised in that described
First Aerobic Pond (A3), the second Aerobic Pond (A5), the 3rd Aerobic Pond (A7), the 4th Aerobic Pond (B3), the 5th Aerobic Pond (B5),
Six Aerobic Ponds (B7), the first anoxic pond (A4), the second anoxic pond (A6), the 3rd anoxic pond (A8), the 4th anoxic pond (B4), the 5th
Anoxic pond (B6), the 6th anoxic pond (B8), SBR ponds (A9), the 2nd SBR ponds (B9), the first anaerobic pond (A1), the second anaerobism
The dissolved oxygen measure with gas explosion system interlink is provided with pond (B1), first pre- anoxic pond (A2) and second pre- anoxic pond (B2)
Instrument.
4. multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization according to claim 1, it is characterised in that described
First anaerobic pond (A1), first pre- anoxic pond (A2), the first Aerobic Pond (A3), the first anoxic pond (A4), the second Aerobic Pond (A5),
Second anoxic pond (A6), the 3rd Aerobic Pond (A7), the 3rd anoxic pond (A8), SBR ponds (A9) constitute first series, described
Second anaerobic pond (B1), second pre- anoxic pond (B2), the 4th Aerobic Pond (B3), the 4th anoxic pond (B4), the 5th Aerobic Pond (B5),
5th anoxic pond (B6), the 6th Aerobic Pond (B7), the 6th anoxic pond (B8), the 2nd SBR ponds (B9) second series of composition, two
Series is while continuum micromeehanics, cyclic switching draining.
5. the sewage disposal side based on the multistage AO+SBR sewage disposal reaction tanks of high-efficient denitrification and dephosphorization described in Claims 1-4
Method, it is characterised in that comprise the following steps：
(1) after entering the preprocessed operation of factory's sewage, first pre- anoxic pond (A2) of branch entrance, second pre- anoxic pond (B2), first are detested
Oxygen pond (A1), the second anaerobic pond (B1), the first anoxic pond (A4), the second anoxic pond (A6), the 3rd anoxic pond (A8), the 4th anoxia
Pond (B4), the 5th anoxic pond (B6), the 6th anoxic pond (B8), respectively enter SBR ponds after nitrification and denitrification effect
(A9) and the 2nd SBR ponds (B9), mud-water separation pond (C1) is entered；
(2) supernatant that isolates through mud-water separation pond (C1) is delivered to the 3rd anoxic pond (A8) and the 6th anoxic pond respectively
(B8), first pre- anoxic pond (A2) and the second pre- anoxia are respectively enterd through the sludge that mud-water separation pond (C1) is concentrated out by being lifted
(B2) is mixed with part of contaminated water in pond, carries out anoxic denitrification denitrogenation；
(3) mud mixed liquid after anoxic denitrification denitrogenation, respectively enters the first anaerobic pond (A1) and the second anaerobic pond (B1) enters
Row releases phosphorus, and then respectively enteing the first Aerobic Pond (A3) and the 4th Aerobic Pond (B3) carries out nitration reaction, enters the first anoxic pond
(A4) and the 4th anoxic pond (B4) carries out Denitrification, through subsequently repeat nitrification, respectively enter after Denitrification
One SBR ponds (A9) and the 2nd SBR ponds (B9), enter mud-water separation pond (C1), form circulation.
6. multistage AO+SBR combined sewage treatment methods of high-efficient denitrification and dephosphorization according to claim 5, its feature exist
In, described enter factory's sewage by the first sewage water inlet pipe (A11) be delivered to first pre- anoxic pond (A2), the first anaerobic pond (A1),
First anoxic pond (A4), the second anoxic pond (A6), the 3rd anoxic pond (A8), are delivered to by the second sewage water inlet pipe (B11)
Two pre- anoxic pond (B2), the second anaerobic pond (B1), the 4th anoxic pond (B4), the 5th anoxic pond (B6), the 6th anoxic pond (B8), and
First sewage water inlet pipe (A11) and the second sewage water inlet pipe (B11) are while continuum micromeehanics.
7. multistage AO+SBR combined sewage treatment methods of high-efficient denitrification and dephosphorization according to claim 5, its feature exist
In, SBR ponds (A9) and the 2nd SBR ponds (B9) cyclic switching water outlet, intermittent drainage.
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