CN105293699B - A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes - Google Patents
A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes Download PDFInfo
- Publication number
- CN105293699B CN105293699B CN201510696901.3A CN201510696901A CN105293699B CN 105293699 B CN105293699 B CN 105293699B CN 201510696901 A CN201510696901 A CN 201510696901A CN 105293699 B CN105293699 B CN 105293699B
- Authority
- CN
- China
- Prior art keywords
- sbr
- anoxic
- nitrification
- water tank
- reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes, belongs to municipal wastewater processing technology field.Sanitary sewage initially enters A2Sbr reactor device, in anaerobic stages storage PHA and phosphorus is released, then Jing Chenpaishui, the supernatant rich in ammonia nitrogen enters N sbr reactors device and completes nitration reaction, and reaction terminates rear nitrification liquid effluent recycling to A2Sbr reactor device occurs anoxic denitrification and removes phosphorus reaction, and reaction terminates rear quiescent setting, and draining is again introduced into the nitration reaction that N sbr reactors device carries out remaining ammonia nitrogen, and it is rear quiet heavy that nitration reaction terminates, and Chinese effluent goes out system.The double sludge theories of present invention application and Denitrifying Phosphorus Removal Technology, it is proposed that the new A according to anaerobism/nitrification/anoxic/nitrification operation2N2Technique, by the flexible control to sbr reactor sequential, solves traditional A2The problem of N Process for Effluent ammonia nitrogens are too high, advanced nitrogen is realized, while save carbon source, be adapted to the low C/N in China than sanitary sewage present situation.
Description
Technical field
The present invention relates to one kind to pass through anaerobism/nitrification/anoxic/nitrification (A2N2) technique carry out denitrification dephosphorization method, category
In technical field of sewage, suitable for low C/N than city domestic sewage, dispersed domestic sewage in rural areas, and application interval
The field such as the newly-built sewage plant of formula SBR techniques or old sewage plant upgrading.
Background technology
The emphasis of current global water pollution control is administered from simple Organic Pollution turns to the nutrients such as nitrogen phosphorus
The research of caused eutrophication problem, the advanced nitrogen dephosphorization of sewage turn into difficult point and core.China municipal wastewater C/N is general
All over relatively low, the needs for meeting synchronous denitrification dephosphorizing are tended not to, and polyP bacteria and the sludge age lance of nitrifier be present in traditional handicraft
The carbon source competition of shield, polyP bacteria and heterotroph, denitrogenation dephosphorizing are inefficient.The realization of Denitrifying Phosphorus Removal Technology be by anaerobism/
Continuous gathering denitrifying polyP bacteria under anoxic alternation condition, it can utilize VFAs synthesis internal carbon source in raw water under anaerobic
PHA, and under anoxic conditions, excessive suction phosphorus reaction is completed using nitrate as the PHA in electron acceptor oxidation Decomposition body, can be saved
50% COD consumptions, 30% oxygen consumption, reduce 50% sludge yield, be adapted to the low C/N in China show than city domestic sewage
Shape.
Traditional A2NSBR techniques use Denitrifying Phosphorus Removal Technology, and polyP bacteria and the separation of nitrifier sludge age, anti-nitre
Phosphorus is eliminated to work well, but because method of operation category rear-mounted denitrification dephosphorization, a part of ammonia nitrogen do not discharge directly by nitrification,
Cause water outlet ammonia nitrogen concentration exceeded, bottleneck is brought to popularization and application.For the rearmounted A of tradition2The problem of N techniques are present, the present invention
Propose the new A according to anaerobism/nitrification/anoxic/nitrification operation2N2Technique, pass through the flexible control to sbr reactor sequential, solution
Determined traditional A2The problem of N Process for Effluent ammonia nitrogens are too high, realize advanced nitrogen dephosphorization.
The content of the invention
The present invention is to provide one kind to pass through anaerobism/nitrification/anoxic/nitrification (A2N2) technique carry out denitrification dephosphorization side
Method, this invention addresses the problems such as the sludge age contradiction and carbon source deficiency of polyP bacteria and nitrifier, while traditional A2N Process for Effluent
The problem of ammonia nitrogen is too high, realize that the synchronous depth of nitrogen phosphorus removes.
The present invention is to provide one kind to pass through anaerobism/nitrification/anoxic/nitrification (A2N2) technique carry out denitrification dephosphorization side
Method, its device is mainly by anaerobic/anoxic reactor (A2SBR), nitrator (N-SBR), raw water water tank, intermediate water tank, return
Flowing water case etc. forms, A2Flco activated sludge containing denitrification dephosphorization function in sbr reactor device, nitrator (N-SBR)
Filling suspended biological filler in reactor, enrichment and growth nitrifier on filler.
A kind of device that denitrification dephosphorization advanced nitrogen is carried out by anaerobism/nitrification/anoxic/nitration processes, its feature exist
In including raw water water tank (1), A2SBR intake pumps (2), agitator (3), air pump (4), anaerobic/anoxic reactor A2SBR (5), in
Between water tank (6), N-SBR intake pumps (7), nitrator N-SBR (8), reflux tank (9) and reflux pump (10), nitration reaction
Filling suspended biological filler in device N-SBR, material is vinyon ring, is 450-500 ㎡/m than superficial density3, filler fills out
Fill than for 30%-40%；Anaerobic/anoxic reactor A2SBR (5) is connected to nitre by intermediate water tank (6), N-SBR intake pumps (7)
Change reactor N-SBR (8), and nitrator N-SBR (8) by reflux tank (9) and reflux pump (10) be connected to anaerobism/
Anoxic reacter A2SBR(5)。
Using the method for described device, it is characterised in that comprise the following steps：
1) sanitary sewage by raw water water tank (1) through A2SBR intake pumps (2) enter anaerobic/anoxic reactor A2SBR (5), enters
After water terminates, agitator (3) starts to stir, and Denitrifying Phosphate Accumulating Organisms utilize the VFAs synthesis internal carbon source PHA in raw water, while by body
Interior phosphate is discharged into vitro；This stage control A2DO≤0.02mg/L, ORP=-150~-220mv, pH in sbr reactor device
=6.5-7.3, water-filling is than 0.7, reaction time 1.5-2h；The reaction of anaerobism section terminates rear Jing Chenpaishui, the supernatant rich in ammonia nitrogen
Into intermediate water tank (6)；
2) nitrator N-SBR (8) will be rich in the supernatant of ammonia nitrogen by N-SBR intake pumps (7) in intermediate water tank (6)
Reactor is pumped into, water-filling than 0.7, open aeration and carry out aerobic nitrification by air pump (4), controls DO=3-4mg/L, is aerated 2-3h, nitre
After the completion of change, nitrified effluent is emitted into reflux tank (9)；
3) anaerobic/anoxic reactor A2SBR (5) is nitrified by backflow of reflux pump (10) injection from reflux tank (9)
Liquid, turn on agitator (3), Denitrifying Phosphate Accumulating Organisms are using the nitrate nitrogen wherein contained as electron acceptor, with the PHA of anaerobic stages storage
As electron donor, anoxic denitrification occurs and removes phosphorus reaction；Reaction time 3-4h, control DO≤0.2mg/L, ORP=-150~-
220mv, reaction completely after staticly settle, the supernatant containing part ammonia nitrogen is again introduced into intermediate water tank (6), draining than 0.7, this
When spoil disposal, control sludge age be 12 days, sludge concentration 3000-3500mg/L；
4) the remaining ammonia nitrogen contained in intermediate water tank (6) is again introduced into N-SBR reactors by N-SBR intake pumps (7)
(8), water-filling opens aeration and removes remaining ammonia nitrogen by aerobic nitrification, control DO=3-4mg/L, go out after being aerated 1h than 0.7
Water discharge system up to standard.
Control A2The sludge age of SBR system is 12 days, A2SBR is run under the conditions of short sludge age, is advantageous to dephosphorization and anti-nitre
Change, on the longer suspended biological filler of the nitrifier apposition growth sludge age in N-SBR reactors, be advantageous to nitrify.
Pass through anaerobism/nitrification/anoxic/nitrification (A the present invention is to provide a kind of2N2) technique progress denitrification dephosphorization
Method, there is following 4 advantages：
(1) denitrification dephosphorization saves carbon source and the energy, improves raw water carbon source profit by " carbon is dual-purpose " synchronous denitrification dephosphorizing
With rate.
(2) this technique belongs to double sludge systems, can create and be adapted to the optimal of polyP bacteria and the various growths of nitrifier respectively
Environmental condition, there is provided optimum operating condition.
(3) on the longer suspended biological filler of nitrifier apposition growth sludge age in N-SBR reactors, nitre is advantageous to
Change, improve anti-shock loading and low temperature nitrifies the problem of poor.
(4) solves traditional A2The problem of N Process for Effluent ammonia nitrogens are too high, advanced nitrogen dephosphorization is realized, be full-scale application
Theory and technology is provided to instruct.
Brief description of the drawings
Fig. 1 is the device of denitrifying phosphorus removal technique, and Fig. 2 is the operation timing diagram of a cycle
In Fig. 1：1- raw water water tanks；2-A2SBR intake pumps；3- agitators；4- air pumps；5-A2Sbr reactor device；Water among 6-
Case；7-N-SBR intake pumps；8-N-SBR reactors；9- reflux tanks；10- reflux pumps
Embodiment
Embodiment of the present invention is described in detail with reference to Fig. 1,2
1) sanitary sewage by raw water water tank (1) through A2SBR intake pumps (2) enter A2Sbr reactor device (5), after water inlet end,
Agitator (3) starts to stir, and Denitrifying Phosphate Accumulating Organisms utilize the VFAs synthesis internal carbon source PHA in raw water, while by internal phosphoric acid
Salt is discharged into vitro.This stage control A2DO≤0.02mg/L, ORP=-150~-220mv, pH=6.5- in sbr reactor device
7.3, water-filling is than 0.7, reaction time 1.5-2h.Most COD is removed during this, and the reaction of anaerobism section terminates rear quiet mattress sinking
Water, the supernatant rich in ammonia nitrogen enter intermediate water tank (6).
2) supernatant that ammonia nitrogen is rich in intermediate water tank (6) is pumped into by N-SBR reactors (8) by N-SBR intake pumps (7)
Reactor, water-filling than 0.7, open aeration and carry out aerobic nitrification by air pump (4), controls DO=3-4mg/L, is aerated 2-3h, has nitrified
Cheng Hou, nitrified effluent are emitted into reflux tank (9).
3) A2SBR reactors (5) are stirred by backflow nitrification liquid of reflux pump (10) injection from reflux tank (9), unlatching
Device (3) is mixed, Denitrifying Phosphate Accumulating Organisms are used as electronics using the nitrate nitrogen wherein contained as electron acceptor, using the PHA of anaerobic stages storage
Donor, anoxic denitrification occurs and removes phosphorus reaction, most of nitrate nitrogen and phosphorus are removed during this.Reaction time 3-4h, control
DO≤0.2mg/L, ORP=-150~-220mv, staticly settled after reaction completely, the supernatant containing part ammonia nitrogen is again introduced into
Intermediate water tank (6), draining is than 0.7, now spoil disposal, and it is 12 days to control sludge age, sludge concentration 3000-3500mg/L.
4) the remaining ammonia nitrogen contained in intermediate water tank (6) is again introduced into N-SBR reactors by N-SBR intake pumps (7)
(8), water-filling opens aeration and removes remaining ammonia nitrogen by aerobic nitrification, control DO=3-4mg/L, be aerated 1h, nitre than 0.7
Change standard water discharge discharge system after reacting.
The sludge age for controlling A2SBR systems is 12 days, A2SBR is run under the conditions of short sludge age, is advantageous to dephosphorization and anti-nitre
Change, on the longer suspended biological filler of the nitrifier apposition growth sludge age in N-SBR reactors, be advantageous to nitrify
We investigate the feasible of the present invention using Beijing area colleges and universities dependents' district septic tank sanitary sewage as research object
Property.Inlet and outlet water water quality and operational factor are following (average value) during experiment：
Water outlet COD, NH during experiment3-N、NO3 —N, the index clearance such as TN, TP is very high, and effluent quality stably reaches state
Family's one-level A standards.
Above content is to combine the further description that specific experiment embodiment is done to the present invention, is easy to the neck
Field technique personnel more fully understand and using the present invention, it is impossible to think that the specific implementation of the present invention is only limited to these explanations, therefore
The simple modifications that art personnel are done to the present invention are all within the scope of the present invention.
Claims (1)
- A kind of 1. method that denitrification dephosphorization advanced nitrogen is carried out by anaerobism/nitrification/anoxic/nitration processes, using following dress Put, the device includes raw water water tank (1), A2SBR intake pumps (2), agitator (3), air pump (4), anaerobic/anoxic reactor A2SBR (5), intermediate water tank (6), N-SBR intake pumps (7), nitrator N-SBR (8), reflux tank (9) and reflux pump (10), nitre Change filling suspended biological filler in reactor N-SBR, material is vinyon ring, is 450-500 ㎡/m than superficial density3, Filler packing ratio is 30%-40%；Anaerobic/anoxic reactor A2SBR (5) is connected by intermediate water tank (6), N-SBR intake pumps (7) Nitrator N-SBR (8) is connected to, and nitrator N-SBR (8) is connected by reflux tank (9) and reflux pump (10) To anaerobic/anoxic reactor A2SBR(5)；It is characterised in that it includes following steps：1) sanitary sewage by raw water water tank (1) through A2SBR intake pumps (2) enter anaerobic/anoxic reactor A2SBR (5), water inlet knot Shu Hou, agitator (3) start to stir, and Denitrifying Phosphate Accumulating Organisms utilize the VFAs synthesis internal carbon source PHA in raw water, while will be internal Phosphate is discharged into vitro；This stage control A2DO≤0.02mg/L, ORP=-150~-220mv, pH=in sbr reactor device 6.5-7.3, water-filling is than 0.7, reaction time 1.5-2h；The reaction of anaerobism section terminates rear Jing Chenpaishui, and the supernatant rich in ammonia nitrogen enters Enter intermediate water tank (6)；2) supernatant that ammonia nitrogen is rich in intermediate water tank (6) is pumped into by nitrator N-SBR (8) by N-SBR intake pumps (7) Reactor, water-filling than 0.7, open aeration and carry out aerobic nitrification by air pump (4), controls DO=3-4mg/L, is aerated 2-3h, has nitrified Cheng Hou, nitrified effluent are emitted into reflux tank (9)；3) anaerobic/anoxic reactor A2SBR (5) is opened by backflow nitrification liquid of reflux pump (10) injection from reflux tank (9) Open agitator (3), Denitrifying Phosphate Accumulating Organisms using the nitrate nitrogen wherein contained as electron acceptor, using anaerobic stages storage PHA as Electron donor, anoxic denitrification occurs and removes phosphorus reaction；Reaction time 3-4h, control DO≤0.2mg/L, ORP=-150~- 220mv, reaction completely after staticly settle, the supernatant containing part ammonia nitrogen is again introduced into intermediate water tank (6), draining than 0.7, this When spoil disposal, control sludge age be 12 days, sludge concentration 3000-3500mg/L；4) the remaining ammonia nitrogen contained in intermediate water tank (6) is again introduced into N-SBR reactors (8) by N-SBR intake pumps (7), fills Water opens aeration and removes remaining ammonia nitrogen by aerobic nitrification, control DO=3-4mg/L, be aerated standard water discharge after 1h than 0.7 Discharge system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696901.3A CN105293699B (en) | 2015-10-25 | 2015-10-25 | A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696901.3A CN105293699B (en) | 2015-10-25 | 2015-10-25 | A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105293699A CN105293699A (en) | 2016-02-03 |
| CN105293699B true CN105293699B (en) | 2017-12-15 |
Family
ID=55191642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510696901.3A Active CN105293699B (en) | 2015-10-25 | 2015-10-25 | A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105293699B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753156B (en) * | 2016-03-25 | 2019-11-05 | 重庆大学 | A kind of town sewage high standard dephosphorization denitrification method |
| CN106830326A (en) * | 2017-03-23 | 2017-06-13 | 扬州大学 | A kind of A2The advanced nitrogen dephosphorization process of N SBR modified sewage |
| CN114477455B (en) * | 2022-03-14 | 2023-04-07 | 郑州大学 | Low-carbon and high-efficiency method for deep nitrogen and phosphorus removal of municipal sewage |
| CN115571981B (en) * | 2022-09-29 | 2024-05-10 | 吉林建筑科技学院 | Improved A2NSBR double-mud denitrification dephosphorization process method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141413A1 (en) * | 2007-05-18 | 2008-11-27 | Zenon Technology Partnership | Wastewater treatment with aerobic granules |
| CN101423294A (en) * | 2008-11-25 | 2009-05-06 | 上海电力学院 | Simultaneous nitrogen and phosphorus removal (AO)2SBR sewage treatment process |
| CN201458907U (en) * | 2009-07-24 | 2010-05-12 | 北京工业大学 | Short-cut denitrifying dephosphatation two-sludge teaching experiment device by taking granular sludge as medium |
| CN101628772B (en) * | 2009-07-24 | 2011-06-22 | 北京工业大学 | Short distance denitrifying dephosphatation double-sludge technique taking granular sludge as medium and device thereof |
| CN101708923A (en) * | 2009-11-16 | 2010-05-19 | 同济大学 | Denitrifying phosphorus and nitrogen removal method for wastewater with low carbon-phosphorus ratio |
| CN102381818B (en) * | 2011-10-24 | 2013-06-05 | 沈阳建筑大学 | A2N-SBR (Anaerobic-anoxic/nitrification-sequencing batch reactor) process with shortcut nitrification-denitrification denitrifying and dephosphorizing function |
| CN103910432B (en) * | 2014-04-22 | 2016-06-08 | 东南大学 | A kind of energy-saving batch-type sanitary sewage nitrogen phosphorus efficiency minimizing technology |
-
2015
- 2015-10-25 CN CN201510696901.3A patent/CN105293699B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105293699A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021051781A1 (en) | Device and method for deep denitrification and phosphorus removal of sewage based on deamox sludge double return aoao | |
| CN108439599B (en) | Device and method for deep nitrogen and phosphorus removal by coupling endogenous short-cut denitrification with ANAMMOX of municipal domestic sewage | |
| CN106830324B (en) | Sectional water inlet A2Device and method for enhancing biological nitrogen and phosphorus removal by adopting/O (oxygen/phosphorus) process | |
| CN109970200B (en) | Device and method for treating urban domestic sewage based on coupling of short-cut denitrification dephosphorization and anaerobic ammonia oxidation | |
| CN105347476B (en) | A kind of apparatus and method of short-cut denitrification dephosphorization coupling Anammox | |
| CN108545830A (en) | A kind of technique for strengthening continuous flow municipal sewage part short distance nitration Anammox using sludge fermentation | |
| CN106745743A (en) | A kind of sewage denitrification dephosphorization system | |
| CN112158952A (en) | Device and method for treating low-carbon-nitrogen-ratio wastewater through continuous flow AOA (argon oxygen decarburization) shortcut nitrification and anaerobic ammonia oxidation coupling sludge fermentation denitrification | |
| CN103864206A (en) | Device and method for sludge digestive juice semi-partial nitrification anaerobic ammonia oxidation denitrification and denitrifying phosphorus removal coupling system | |
| CN108217950A (en) | The device and method that FNA reinforcement sludges ferment and realize sewerage short-cut denitrification dephosphorization | |
| CN105198084B (en) | A kind of apparatus and method that advanced nitrogen is realized by preamble part denitrification coupling ammoxidation DEAMOX techniques | |
| CN108862582A (en) | One kind being based on part Anammox biomembrane A2The method of the bis- sludge system denitrogenation dephosphorizings of/O-IFAS-MBR | |
| CN105540846A (en) | Low-carbon-source municipal sewage improved UCT autotrophic denitrification dephosphorization device and application method thereof | |
| CN101891344B (en) | Activated sludge-biomembrane combined circulating flow denitrification and desophorization integrated sewage treatment device and method | |
| CN103288211A (en) | Device and method for treating low-C/N (carbon/nitrogen) ratio urban sewage by an anoxic/aerobic SBR-DEAMOX (denitrifying ammonium oxidation) denitrification process | |
| CN104944582B (en) | Test device and method of coupled SBR denitrification dephosphorization and integrated anaerobic ammonia oxidation | |
| CN110028158A (en) | The method and apparatus of the endogenous short-cut denitrification coupling Anammox denitrogenation dephosphorizing of city domestic sewage | |
| CN105217890A (en) | A is strengthened based on DEAMOX 2the apparatus and method of/O+ Biological Contact Oxidation Process biological carbon and phosphorous removal | |
| CN105293699B (en) | A kind of method that denitrification dephosphorization is carried out by anaerobism/nitrification/anoxic/nitration processes | |
| CN206828307U (en) | A kind of sewage water intensification denitrification dephosphorization apparatus | |
| CN102502962A (en) | Method and device for controlling synchronous nitration and denitrification in surface aeration oxidation ditch process | |
| CN105753157B (en) | The apparatus and method that excess sludge anaerobic fermentation mixture strengthens city domestic sewage advanced nitrogen dephosphorization by two-stage SBR | |
| CN101823814B (en) | Method and system of integrated denitrifying phosphorus and nitrogen removal | |
| CN108128897A (en) | The apparatus and method of synchronous short-cut nitrification and denitrification dephosphorization Treating Municipal Sewage are realized based on azanol | |
| CN105198168B (en) | A2/O-MBR-biological contact oxidation pond dual-sludge high-efficiency denitrifying phosphorus removal device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |