CN201437522U - Anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device - Google Patents

Anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device Download PDF

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Publication number
CN201437522U
CN201437522U CN200920015978XU CN200920015978U CN201437522U CN 201437522 U CN201437522 U CN 201437522U CN 200920015978X U CN200920015978X U CN 200920015978XU CN 200920015978 U CN200920015978 U CN 200920015978U CN 201437522 U CN201437522 U CN 201437522U
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sbr
anaerobic
reactor
anaerobic hydrolysis
sbr reactor
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CN200920015978XU
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詹技灵
代文臣
姚远飞
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Dalian Mec Environmental Technology & Engineering Co Ltd
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Dalian Mec Environmental Technology & Engineering Co Ltd
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Abstract

The utility model belongs to the field of environmental engineering sewage treatment, particularly relates to an anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device. The device comprises an anaerobic hydrolysis tank, an SBR reactor and a water outlet tank, wherein the influent weir of the anaerobic hydrolysis tank is communicated with a sewage source; a stirrer and a water inlet pump communicated with the SBR reactor are arranged in the anaerobic hydrolysis tank; an aeration device connected with a fan and a stirrer are arranged in the SBR reactor; and a decanter is arranged at the water outlet of the SBR reactor, and is connected with the water outlet tank through a drainage pipeline. The utility model combines good denitrification and phosphorus removal property of SBR technology with the denitrifying dephosphatation technology suitable for town sewage under low carbon source, and takes the pre-arranged adjusting tank of the SBR technology as the hydrolysis tank to provide good reaction condition for rear-end denitrifying dephosphatation, so that the purposes of saving carbon source, reducing energy consumption and having stable and standardized water quality are achieved.

Description

Anaerobic hydrolysis and SBR coupled denitrification dephosphorization device
One, technical field
The utility model relates to a kind of anaerobic hydrolysis and SBR technology coupled denitrification dephosphorization device, belongs to field of environmental engineering sewage treatment.
Two, background technology
1. denitrification dephosphorization theory
Prior biological denitrogenation dephosphorizing combination process mainly is based upon and carries out the framework combination on the traditional biological denitrogenation dephosphorizing theoretical basis.In recent years, the discovery and the research of nitration denitrification technology, denitrification dephosphorization technology, short-cut nitrification and denitrification denitrification process, anaerobic ammonia oxidation process etc. provide valid approach for addressing the above problem simultaneously, become the focus of current research.Along with going deep into of biological carbon and phosphorous removal technical study, the new technology of combined that technology is simple, processing efficiency is high, energy consumption is low will become the development trend of denitrification dephosphorization technique.
Denitrification dephosphorization is to utilize the anaerobic/anoxic alternate environment to replace traditional aerobic/anaerobic environment, inoculate and culture out a class with denitrification phosphorus-collecting bacterium (the denitrifying polyphosphate-accumulating organisms of nitrate radical as final electron acceptor(EA), be called for short DPAOs) be dominant bacteria, finish excessive suction phosphorus and denitrification process simultaneously by their metabolism, reach the dual purpose of denitrogenation dephosphorizing.Under anoxic (anaerobic but have nitrate nitrogen) condition, DPAOs can utilize nitrate nitrogen (rather than O 2) serve as electron acceptor(EA), produce same biology and take the photograph the phosphorus effect.When biology was taken the photograph phosphorus, nitrate nitrogen was reduced to nitrogen, thereby biological phosphate-eliminating and denitrification denitrogenation are organically united two into one.Therefore, denitrification dephosphorization is a kind of efficient, feasible sewage water dephosphorization denitrification technology.Compare with traditional biological phosphate-eliminating technology, the denitrification dephosphorization biggest advantage is exactly to have saved a large amount of organic carbon sources and aeration rate, reduces surplus sludge volume, is described as " sustainable biological dephosphorize denitrification technology ".
But its main drawback has: the microorganism than big difference influences each other in same system, has restricted the high efficiency and the stability of technology; Comprise the backflow of multiple mud and mixed solution in the more technical process, increased the complicacy of system, improved capital construction and working cost; Consume more to the energy (as oxygen, COD) in the denitrogenation dephosphorizing process; The organic carbon source overwhelming majority is by direct oxidation, CO 2Quantity discharged is bigger; Excess sludge is rich in phosphorus, and treatment capacity is bigger.These all do not meet the requirement of the Sustainable development of environment.
2. the biological carbon and phosphorous removal device of time sequence---SBR process unit
The maximum feature of the biological carbon and phosphorous removal device of time sequence is, the biology of sewage releases phosphorus, inhales phosphorus, nitrated and denitrification biochemical reaction all in same reaction tank, carries out sewage disposal in chronological order.The aeration of active sludge, precipitation and draining are all carried out in same reactor, carry out sewage disposal in chronological order, and the entire treatment process is divided into 5 stages: water inlet phase, reaction period, sedimentation period, drainage period and lay-up period.Compare with traditional continous way activated sludge process, the SBR process unit has the following advantages:
1) do not establish secondary sedimentation basins, the aeration tank has the second pond function concurrently;
2) the aeration tank volume is less than continous way, and construction cost and working cost are all lower;
3) the SVI value is lower, and mud is easy to precipitation, is difficult for taking place sludge bulking;
4) step of reaction is an ideal plug-flow process, and the biochemical reaction impellent is big, the processing efficiency height, and anti impulsion load is big;
5) notion of SBR treatment technology and flexibility of operation make operation scheme flexible and changeable, have the denitrogenation dephosphorizing function.
The main shortcoming of SBR is the performance and the level of automation of equipment are had relatively high expectations; Because denitrogenation dephosphorizing carries out in one reaction pool, the mud contradiction in age of nitrifier and polyP bacteria and the competition of the carbon source of anoxic denitrification and anaerobic phosphorus release often make the stability of denitrogenation dephosphorizing effect and system's operation be affected, and these problems all await improving and be perfect.
Three, summary of the invention
The purpose of this utility model is the drawback that exists at existing biological carbon and phosphorous removal main technique, a kind of anaerobic hydrolysis and SBR coupled denitrification dephosphorization device are provided, apparatus structure is simple, have the technical superiority of denitrification dephosphorization technology and SBR technology concurrently, reached good denitrogenation dephosphorizing effect and energy saving purposes.
The technical scheme that the utility model is adopted for achieving the above object is: anaerobic hydrolysis and SBR coupled denitrification dephosphorization device, comprise anaerobic fixed film reactor, sbr reactor device and outlet sump, the anaerobic fixed film reactor influent weir is connected source of sewage, agitator and intake pump are installed in the anaerobic fixed film reactor, intake pump is by pipeline connection sbr reactor device, aerator and agitator are installed in the sbr reactor device, the aerator wind-connector, install and strain hydrophone at sbr reactor device water outlet place, strains hydrophone and be communicated with outlet sump by drainage pipeline.
Water pump is equipped with out at described outlet sump water outlet place.
Sludge reflux pump is installed in the described sbr reactor device, and sludge reflux pump is communicated with anaerobic fixed film reactor by reflux line.
In the described sbr reactor device residual sludge pump is installed also.
Described anaerobic fixed film reactor, sbr reactor device and outlet sump are to cut off in the middle of the whole pond to form.
Described aerator adopts tube aerator.
Described agitator be arranged in the anaerobic fixed film reactor according to the diagonal angle and the sbr reactor device in.
The utility model anaerobic hydrolysis and SBR coupled denitrification dephosphorization device possess following characteristics and advantage:
1, utilizes the denitrification dephosphorization new way that denitrification denitrogenation and biological phosphate-eliminating are organically united two into one, make biological phosphate-eliminating and denitrification denitrogenation, saved the energy and resource in a process, to finish with a kind of bacterium (denitrification phosphorus-collecting bacterium);
2, denitrification and the carbon source competition of releasing phosphorus have been avoided in the setting of anaerobic fixed film reactor to the full extent, have reduced sbr reactor device organic loading when saving carbon source, have guaranteed the steady running of device;
3, operation control flexibly, conveniently: the operation scheme of sequence batch (has strengthened the operational flexibility and the controllability of system; Fan operation is only got final product by start and stop control, need not the full loop variable frequency control;
4, technique unit is simple: anaerobic fixed film reactor has utilized the original water inlet equalizing tank of SBR technology and has possessed the function of anaerobic hydrolysis, improves treatment effect; The mud return-flow system is simple; Need not the heavy pool process unit of secondary.
Four, description of drawings:
Fig. 1 is the utility model two dimensional structure synoptic diagram.
Five, embodiment:
Below in conjunction with accompanying drawing anaerobic hydrolysis of the present utility model and SBR coupled denitrification dephosphorization device are described in further detail:
It is to form by cutting off in the middle of the whole pond that three ponds shown in the figure are respectively anaerobic fixed film reactor 1, sbr reactor device 2 and outlet sump 3, anaerobic fixed film reactor 1 has influent weir 4, pending sewage at first enters anaerobic fixed film reactor 1 continuously by influent weir 4, diagonal position is arranged two agitators 6 in the anaerobic fixed film reactor, agitator is in the continuous operation state, guarantee mud and sewage hybrid reaction fully, microorganism carries out organic absorption, utilizes organism to carry out heterotrophic denitrification, utilizes organism to carry out the phosphorus of releasing of polyP bacteria by heterotrophic bacterium.Intake pump 7 in the anaerobic fixed film reactor is communicated with sbr reactor device 2 by pipeline 8, intake pump 7 enters sbr reactor device 2 with muddy water mixed solution through communicating pipe 8, sbr reactor device 2 begins water inlet, the water yield in the anaerobic fixed film reactor reduces fast, and the water yield of sbr reactor device 2 increases gradually, up to reaching in 2 the highest liquid level or finishing flooding time.Press diagonal position in the sbr reactor device 2 and arrange two agitators 11, the intermediate arrangement aerator, aerator and blower fan are communicated with, at sbr reactor device 2 fill phase agitators 11 continuous operation, make sludge microbe and water inlet pollutent fully react and can prevent the mud alluvial of sbr reactor device 2, the PHB that this moment, microorganism utilized the anaerobic phosphorus release storage is as energy, and the nitrate nitrogen that utilizes 2 last cycle of sbr reactor device nitration reaction to produce carries out the denitrification excess as electron acceptor(EA) and inhales phosphorus.After aerobic stage begins, blower fan supplies microbial respiratory with oxygen evolution by aerator 15 in sbr reactor device 2, this stage is mainly carried out the nitration reaction of autotrophy nitrifier and the aerobic suction phosphorus reaction of polyP bacteria, sludge reflux pump 12 is installed in the sbr reactor device 2, sludge reflux pump is communicated with anaerobic fixed film reactor by return line 13, the part of the nitrate nitrogen that nitration reaction produces is transferred to anaerobic fixed film reactor 1 in the aerobic stage second half section by sludge reflux pump 12 and carries out anti-nitration reaction, remainder is used for the following cycle and carries out denitrification dephosphorization reaction at sbr reactor device 2, other all processing units are out of service in the sbr reactor device 2 then, enter the solid-liquid separation process of quiescent settling; Mixed solution is finished after the settling process, the hydrophone 9 of straining that install at the water outlet place in the sbr reactor device 2 brings into operation, strain hydrophone 9 and be communicated with outlet sump 3 by drainage pipeline, through drainage pipeline 10 the part supernatant liquor in the sbr reactor device 2 is entered in the outlet sump 3, outlet sump liquid level and sbr reactor device 2 liquid levels exist certain liquid level poor, the supernatant liquor flow by gravity enters outlet sump, and the outlet sump water outlet is installed out water pump 5, operation continuously in whole periodic duty process; Before straining the end of water stage, open the residual sludge pump 14 of installing in the sbr reactor device 2 automatically, according to setting-up time excess sludge in the sbr reactor device 2 is drained; Strain the water stage and close after finishing and strain hydrophone 9, close residual sludge pump 14, finish whole periodic process and prepare the beginning next cycle.

Claims (7)

1. anaerobic hydrolysis and SBR coupled denitrification dephosphorization device, it is characterized in that: comprise anaerobic fixed film reactor, sbr reactor device and outlet sump, the anaerobic fixed film reactor influent weir is connected source of sewage, agitator and intake pump are installed in the anaerobic fixed film reactor, intake pump is installed aerator and agitator, aerator wind-connector by pipeline connection sbr reactor device in the sbr reactor device, install and strain hydrophone at sbr reactor device water outlet place, strains hydrophone and be communicated with outlet sump by drainage pipeline.
2. anaerobic hydrolysis according to claim 1 and SBR coupled denitrification dephosphorization device is characterized in that: sludge reflux pump is installed in the sbr reactor device, and sludge reflux pump is communicated with anaerobic fixed film reactor by reflux line.
3. anaerobic hydrolysis according to claim 1 and 2 and SBR coupled denitrification dephosphorization device is characterized in that: water pump is equipped with out at outlet sump water outlet place.
4. anaerobic hydrolysis according to claim 1 and 2 and SBR coupled denitrification dephosphorization device is characterized in that: residual sludge pump also is installed in the sbr reactor device.
5. anaerobic hydrolysis according to claim 1 and 2 and SBR coupled denitrification dephosphorization device is characterized in that: anaerobic fixed film reactor, sbr reactor device and outlet sump are to cut off in the middle of the whole pond to form.
6. anaerobic hydrolysis according to claim 1 and 2 and SBR coupled denitrification dephosphorization device is characterized in that: aerator adopts tube aerator.
7. anaerobic hydrolysis according to claim 1 and 2 and SBR coupled denitrification dephosphorization device is characterized in that: agitator be arranged in the anaerobic fixed film reactor according to the diagonal angle and the sbr reactor device in.
CN200920015978XU 2009-07-28 2009-07-28 Anaerobic hydrolysis and SBR coupling denitrifying dephosphatation device Expired - Lifetime CN201437522U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102259981A (en) * 2011-07-08 2011-11-30 中国矿业大学 Sequencing batch biological phosphorus and nitrogen removal process
CN102295347A (en) * 2011-08-02 2011-12-28 浙江商达环保有限公司 Method for treating high-concentration pharmaceutical wastewater with sludge-film coexistence
CN102701447A (en) * 2012-05-09 2012-10-03 华中科技大学 Multifunctional pilot-scale test system for sewage treatment and application of system
CN102963976A (en) * 2011-09-01 2013-03-13 株式会社水环境研究所 Organic wastewater processing method and organic wastewater processing system
CN103979740A (en) * 2014-05-29 2014-08-13 厦门溢盛环保科技有限公司 Sewage treatment system and method through nitrogen and phosphorus removal constant water level sequencing batch activated sludge process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102259981A (en) * 2011-07-08 2011-11-30 中国矿业大学 Sequencing batch biological phosphorus and nitrogen removal process
CN102259981B (en) * 2011-07-08 2012-11-28 中国矿业大学 Sequencing batch biological phosphorus and nitrogen removal process
CN102295347A (en) * 2011-08-02 2011-12-28 浙江商达环保有限公司 Method for treating high-concentration pharmaceutical wastewater with sludge-film coexistence
CN102963976A (en) * 2011-09-01 2013-03-13 株式会社水环境研究所 Organic wastewater processing method and organic wastewater processing system
CN102701447A (en) * 2012-05-09 2012-10-03 华中科技大学 Multifunctional pilot-scale test system for sewage treatment and application of system
CN103979740A (en) * 2014-05-29 2014-08-13 厦门溢盛环保科技有限公司 Sewage treatment system and method through nitrogen and phosphorus removal constant water level sequencing batch activated sludge process
CN103979740B (en) * 2014-05-29 2015-11-25 厦门溢盛环保科技有限公司 Denitrogenation dephosphorizing constant water level sequencing batch active sludge method is disposed of sewage system and method thereof

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