CN109534500A - One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing - Google Patents
One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing Download PDFInfo
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- CN109534500A CN109534500A CN201810412151.6A CN201810412151A CN109534500A CN 109534500 A CN109534500 A CN 109534500A CN 201810412151 A CN201810412151 A CN 201810412151A CN 109534500 A CN109534500 A CN 109534500A
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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Abstract
One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, belongs to technical field of sewage.It forms the A mainly including 9 cell compartments composition2O device and sedimentation tank device, its method is mainly the part cell compartment in biochemistry pool while stirring measure, aeration, water inlet and reflux measure etc. is arranged, make part cell compartment that the switching between anaerobism, anoxic and the different function area such as aerobic may be implemented, by simply adjust just can group be combined into A2O technique, inversion A2O technique, step feed technology and the step feed technology for adding outer carbon source etc..The present invention solves the problems, such as that town sewage water quality and quantity fluctuation in China's is unmatched with technique greatly, passes through multi-functional A2O technique can satisfy the requirement of various different qualities and Effluent criteria.
Description
Technical field
The present invention relates to one kind to pass through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing belongs to sewage treatment skill
Art field is suitable for low C/N than efficient domestic sewage denitrogenation dephosphorizing, can be applied to the newly-built of sewage treatment plant and proposes mark transformation.
Background technique
Water quality and quantity fluctuation in China's is big and C/N is relatively low, and carbon source deficiency causes denitrogenation dephosphorizing inefficient, existing technique
Technology can only be handled for single water quality situation, because the problem that technique mismatch causes water outlet not up to standard is very serious.For
It solves the above problems, proposes a kind of by multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, can be respectively according to A2O
Technique, inversion A2The operation such as step feed technology of O technique, step feed technology and additional carbon, according to different influent qualities
Different process program operations can be chosen with Effluent criteria.
A2O technique is linked by anaerobic/anoxic/aerobic functional areas sequence, releases phosphorus, anoxic zone denitrification by anaerobic zone
Phosphorus is inhaled in denitrogenation, aerobic zone and nitrification achievees the purpose that remove pollutant.Inversion A2Before nitrification liquid is flowed back into technique most by O technique
End forms hypoxic/anaerobic/aerobic functional areas link sequence, passes through anoxic denitrification, anaerobic phosphorus release, aerobic phosphorus absorption and nitrification
Pollutant removal is realized, with A2O technique is compared, and carbon source is preferentially used for anoxic denitrification, is conducive to denitrogenation.
Step feed technology (by taking three-stage as an example), influent flow distribution according to 40%, 30%, 30% ratio, press by functional areas
According to anoxic: aerobic: anoxic: aerobic: anoxic: the volumetric ratio sequence of aerobic=1:2:1:2:1:2 links, successively in anoxic zone
It carries out denitrification denitrogenation and denitrification dephosphorization, carry out the reaction such as nitrifying in aerobic zone, make full use of raw water carbon source to realize efficiently de-
Nitrogen.If first and second section of assignment of traffic is according to 50%, 50%, third section does not introduce raw water but adds outer carbon source, then will be into one
Step realizes advanced nitrogen (TN≤3mg/L).
Summary of the invention
The present invention is to provide one kind to pass through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, the present invention solve
Town sewage water quality and quantity fluctuation in China's passes through multi-functional A greatly with the unmatched problem of technique2O technique can satisfy various
The requirement of different quality and Effluent criteria.
One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, device composition mainly include 1 ~ 9 totally 9
A cell compartment and 10 sedimentation basins, wherein cell compartment 2,3,4,7 installs blender and aeration plate as anoxic/aerobic multi-functional lattice simultaneously
Room, 1 installation blender is used as anaerobic/anoxic multi-functional cell compartment when lattice, the aerobic cell compartment of the conduct of cell compartment 5,6,8,9, and including into
Water lines W1、W2、W3, sludge reflux pipeline Rs, nitrification liquid return line R1、R2, blender 1-M、2-M、3-M、4-M、7-M, aeration
Disk 2-A、3-A、4-A、5-A、6-A、7-A、8-A、9-ADeng.
One kind passing through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, step mainly include the following.
(1) inlet pipeline W1It opens, inlet pipeline W2、W3It closes, nitrification liquid return line R1It closes, nitrification liquid return pipe
Road R2It opens, the 1st, 2, the blender 1- of 3 cell compartmentsM、2-M、3-MIt opens, the 4th, 5,6,7,8, the aeration plate 4- of 9 cell compartmentsA、5-A、
6-A、7-A、8-A、9-AIt opens, the 2nd, the aeration plate 2- of 3 cell compartmentsA、2-AIt closes, the 4th, the blender 4- of 7 cell compartmentsM、7-MIt closes, it is dirty
Mud return line Rs is opened, and system is according to anaerobism: anoxic: the volumetric ratio of aerobic=1:2:6 is combined into A2O technique, according to anaerobic zone
It releases phosphorus, anoxic zone denitrification denitrogenation, aerobic zone suction phosphorus and nitrification and synchronizes denitrogenation dephosphorizing reaction.
(2) inlet pipeline W1It opens, inlet pipeline W2、W3It closes, nitrification liquid return line R1It opens, nitrification liquid return pipe
Road R2It closes, the 1st, 2, the blender 1- of 3 cell compartmentsM、2-M、3-MIt opens, the 4th, 5,6,7,8, the aeration plate 4- of 9 cell compartmentsA、5-A、
6-A、7-A、8-A、9-AIt opens, the 2nd, the aeration plate 2- of 3 cell compartmentsA、2-AIt closes, the 4th, the blender 4- of 7 cell compartmentsM、7-MIt closes, it is dirty
Mud return line Rs is opened, and system is according to anaerobism: anoxic: the volumetric ratio of aerobic=2:1:6 is combined into inversion A2O technique, by lacking
Oxygen denitrification, anaerobic phosphorus release, aerobic phosphorus absorption and nitrification realize pollutant removal, with A2O technique is compared, and can preferentially use carbon source
In denitrogenation.
(3) inlet pipeline W1、W2、W3It opens, assignment of traffic is according to 40%, 30%, 30%, nitrification liquid return line R1、R2It closes
It closes, the 1st, 4,7 cell compartment blender 1-M、4-M、7-MIt opens, the 2nd, 3,5,6,8, the aeration plate 2- of 9 cell compartmentsA、3-A、5-A、6-A、8
-A、9-AIt opens, the 2nd, the blender 2- of 3 cell compartmentsM、3-MIt closes, the 4th, the aeration plate 4- of 7 cell compartmentsA、7-AIt closes, mud return line
Road Rs is opened, and system is according to anoxic: aerobic: anoxic: aerobic: anoxic: the volumetric ratio of aerobic=1:2:1:2:1:2 is combined into segmentation
Water inlet technique makes full use of raw water carbon source to carry out denitrogenation and denitrification dephosphorization reaction.
(4) inlet pipeline W1、W2It opens, assignment of traffic is according to 50%, 50%, pipeline W3No longer into raw water, but add outer carbon
Source, nitrification liquid return line R1、R2It closes, the 1st, 4,7 cell compartment blender 1-M、4-M、7-MIt opens, the 2nd, 3,5,6,8,9 cell compartments
Aeration plate 2-A、3-A、5-A、6-A、8-A、9-AIt opens, the 2nd, the blender 2- of 3 cell compartmentsM、3-MIt closes, the 4th, the aeration plates of 7 cell compartments
4-A、7-AIt closes, sludge reflux pipeline Rs is opened, and system is according to anoxic: aerobic: anoxic: aerobic: anoxic: aerobic=1:2:1:2:
The volumetric ratio of 1:2 is combined into step feed technology, carries out advanced nitrogen reaction by adding outer carbon source.
Detailed description of the invention
Fig. 1 is A2O process flow, in Fig. 1: W1Inlet pipeline, Rs- sludge reflux pipeline, R2Nitrification liquid return line,
1-M、2-M、3-MFor blender, 4-A、5-A、6-A、7-A、8-A、9-AFor aeration plate, 10- sedimentation basin.
Fig. 2 is inversion A2O process flow, in Fig. 2: W1Inlet pipeline, Rs- sludge reflux pipeline, R1Nitrification liquid return pipe
Road, 1-M、2-M、3-MFor blender, 4-A、5-A、6-A、7-A、8-A、9-AFor aeration plate, 10- sedimentation basin.
Fig. 3 is step feed technology process (step feed technology including additional carbon), in Fig. 3: W1、W2、W3Water inlet
Pipeline, Rs- sludge reflux pipeline, 1-M、4-M、7-MFor blender, 2-A、3-A、5-A、6-A、8-A、9-AFor aeration plate, 10- sinks
Shallow lake pond.
Specific embodiment
In conjunction with the embodiment that the present invention will be described in detail of figure one, two, three.
(1) one embodiment of figure: sanitary sewage passes through inlet pipeline W first1Into anaerobism cell compartment 1, sludge reflux Rs liquid
It synchronizes and flows back into anaerobism cell compartment 1, anaerobic phosphorus release and storage PHA reaction occurs, then mixed liquor flows into anoxic cell compartment 2 and 3, simultaneously
The also nitrification liquid reflux R entered2, after hypoxia response, mixed liquor flows into aerobic cell compartment 4,5,6,7,8,9 and carries out aerobic suction
Phosphorus and nitration reaction.
(2) two embodiment of figure: sanitary sewage passes through inlet pipeline W first1Into anaerobism cell compartment 1, sludge reflux Rs liquid
The also nitrification liquid reflux R for synchronizing and flowing back into anaerobism cell compartment 1, while entering1, the preferential carbon source progress denitrification using in raw water
Denitrification reaction, then mixed liquor flows into anaerobism cell compartment 3, anaerobic phosphorus release and storage PHA reaction occurs, last mixed liquor flows into aerobic
Cell compartment 4,5,6,7,8,9 carries out aerobic phosphorus absorption and nitration reaction.
(3) three embodiment of figure: sanitary sewage passes through inlet pipeline W first1、W2、W3Into anoxic cell compartment 1,4,7, flow
According to 40%, 30%, 30%, sludge reflux Rs liquid, which synchronizes, flows back into anoxic cell compartment 1 for distribution, and denitrification occurs in anoxic cell compartment 1,4,7
In aerobic cell compartment 2,3,5,6,8,9 nitration reaction occurs for denitrification reaction, if the inlet pipeline cancellation of third section is changed to add
Outer carbon source, while W1、W2Assignment of traffic also just becomes the 4th kind of scheme and (adds the segmental influent of outer carbon source according to 50%, 50%
Technique), it will realize advanced nitrogen.
Using the water inlet of Beijing sewage treatment plant as subjects, the denitrogenation dephosphorizing performance of our law technology has been investigated, has been tried
Test the result shows that: after system run all right, effluent COD concentration be≤50 mg/L, BOD≤10 mg/L, NH4 +Concentration≤2-N
Mg/L, NO3 -- N concentration is≤10 mg/L, TN concentration≤15 mg/L, the mg/L of TP≤0.5.
The above content is combining specific test embodiment to illustrate to what the present invention was done, so that the relevant personnel are more preferable
Ground understands, must not believe that specific implementation of the invention is confined to these, therefore field technical staff is made based on the method
Simple modifications are all within that scope of the present invention.
Claims (2)
1. one kind passes through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, device composition mainly include 1 ~ 9 totally 9 lattice
Room and 10 sedimentation basins, wherein cell compartment 2,3,4,7 installs blender and aeration plate as anoxic/aerobic multi-functional cell compartment, lattice simultaneously
Blender is installed as the multi-functional cell compartment of anaerobic/anoxic in room 1, and cell compartment 5,6,8,9 is used as aerobic cell compartment, and including inlet pipeline
W1、W2、W3, sludge reflux pipeline Rs, nitrification liquid return line R1、R2Deng.
2. one kind passes through multi-functional A2The method that O technique optimizes denitrogenation dephosphorizing, which is characterized in that can be according to following four
Scheme is separately operable:
1) inlet pipeline W1It opens, inlet pipeline W2、W3It closes, nitrification liquid return line R1It closes, nitrification liquid return line R2It opens
It opens, nitrification liquid flows back into the 2nd cell compartment from foundation frame room, the 1st, 2, the blender 1- of 3 cell compartmentsM、2-M、3-MOpen, the 4th, 5,6,7,
8, the aeration plate 4- of 9 cell compartmentsA、5-A、6-A、7-A、8-A、9-AIt opens, the 2nd, the aeration plate 2- of 3 cell compartmentsA、2-AIt closes, the 4th, 7 lattice
The blender 4- of roomM、7-MClose, sludge reflux pipeline Rs is opened, and sludge flows back into the 1st cell compartment from sedimentation basin 10, system according to
Anaerobism: anoxic: the volumetric ratio of aerobic=1:2:6 is combined into A2O technique successively carries out anaerobic phosphorus release, anoxic denitrification, aerobic suction
Phosphorus and nitration reaction；
2) inlet pipeline W1It opens, inlet pipeline W2、W3It closes, nitrification liquid return line R1It opens, nitrification liquid flows back from foundation frame room
To the 1st cell compartment, nitrification liquid return line R2It closes, the 1st, 2, the blender 1- of 3 cell compartmentsM、2-M、3-MOpen, the 4th, 5,6,7,8,
The aeration plate 4- of 9 cell compartmentsA、5-A、6-A、7-A、8-A、9-AIt opens, the 2nd, the aeration plate 2- of 3 cell compartmentsA、2-AIt closes, the 4th, 7 cell compartments
Blender 4-M、7-MIt closes, sludge reflux pipeline Rs is opened, and sludge flows back into the 1st cell compartment from sedimentation basin 10, and system is according to detesting
Oxygen: anoxic: the volumetric ratio of aerobic=2:1:6 is combined into inversion A2O technique successively carries out anoxic denitrification, anaerobic phosphorus release, aerobic
Inhale phosphorus and nitration reaction；
3) inlet pipeline W1、W2、W3It opens, assignment of traffic is according to 40%, 30%, 30%, nitrification liquid return line R1、R2It closes, the 1st,
4,7 cell compartment blender 1-M、4-M、7-MIt opens, the 2nd, 3,5,6,8, the aeration plate 2- of 9 cell compartmentsA、3-A、5-A、6-A、8-A、9-AIt opens
It opens, the 2nd, the blender 2- of 3 cell compartmentsM、3-MIt closes, the 4th, the aeration plate 4- of 7 cell compartmentsA、7-AIt closes, sludge reflux pipeline Rs is opened
It opens, sludge flows back into the 1st cell compartment from sedimentation basin 10, and system is according to anoxic: aerobic: anoxic: aerobic: anoxic: aerobic=1:2:1:2:
The volumetric ratio of 1:2 is combined into step feed technology, anoxic cell compartment make full use of raw water carbon source carry out denitrogenation, aerobic cell compartment into
Row nitration reaction；
4) inlet pipeline W1、W2It opens, assignment of traffic is according to 50%, 50%, pipeline W3No longer into raw water, but add outer carbon source, nitre
Change liquid return line R1、R2It closes, the 1st, 4,7 cell compartment blender 1-M、4-M、7-MIt opens, the 2nd, 3,5,6,8, the aerations of 9 cell compartments
Disk 2-A、3-A、5-A、6-A、8-A、9-AIt opens, the 2nd, the blender 2- of 3 cell compartmentsM、3-MIt closes, the 4th, the aeration plate 4- of 7 cell compartmentsA、
7-AIt closes, sludge reflux pipeline Rs is opened, and sludge flows back into the 1st cell compartment from sedimentation basin 10, and system is according to anoxic: aerobic: to lack
Oxygen: aerobic: anoxic: the volumetric ratio of aerobic=1:2:1:2:1:2 is combined into step feed technology, carries out denitrification in anoxic cell compartment
Denitrogenation carries out nitration reaction in aerobic cell compartment, and third section realizes advanced nitrogen by adding outer carbon source.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111606418A (en) * | 2020-04-28 | 2020-09-01 | 中国市政工程中南设计研究总院有限公司 | Subsection water inlet inversion A2O coupling multistage AO biological pond + MBR degree of depth nitrogen and phosphorus removal system |
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| CN111606418A (en) * | 2020-04-28 | 2020-09-01 | 中国市政工程中南设计研究总院有限公司 | Subsection water inlet inversion A2O coupling multistage AO biological pond + MBR degree of depth nitrogen and phosphorus removal system |
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