CN108383241A - Self-loopa autotrophic denitrification bioreactor - Google Patents
Self-loopa autotrophic denitrification bioreactor Download PDFInfo
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- CN108383241A CN108383241A CN201810419221.0A CN201810419221A CN108383241A CN 108383241 A CN108383241 A CN 108383241A CN 201810419221 A CN201810419221 A CN 201810419221A CN 108383241 A CN108383241 A CN 108383241A
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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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention provides a kind of self-loopa autotrophic denitrification bioreactors, the bioreactor main body is cylindrical structure, outer to be cased with cyclic annular reflux ring cavity, the bioreactor main body is equipped with microporous aeration disc, turning spurt water device, gas collection cap, anaerobic water cover, gas discharging pipe, three phase separator, anaerobism exhaust pipe successively from bottom to up.The bioreactor main body wall is equipped with reflux sieve tray I, water inlet pipe, aerobic sludge pipe, anaerobism sludge pipe, reflux sieve tray II, effluent trough, outlet pipe successively from bottom to up.Entire bioreactor is divided into aerobic reactor zone, anaerobic reaction area, depositing separation area, recirculating zone by function.The self-loopa autotrophic denitrification bioreactor has good denitrification efficiency, and runs efficient stable, has the following advantages：1) sludge withholding effect is good, and sludge concentration is high.2) aeration process is avoided to adversely affect reactor nitrogen removal performance.3) reactor entirety nitrogen removal performance is improved.4) operating cost is saved.
Description
Technical field
The present invention relates to a kind of bio-denitrifying sewage reactors, belong to sewage water denitrification biological treatment field more particularly to one
Kind self-loopa autotrophic denitrification bioreactor.
Background technology
With China's economic development and the improvement of people's living standards, a large amount of industrial pollution discharges, sanitary sewage discharge, are agricultural
Loss of chemical fertilizer, the discharge of poultry industry aquaculture wastewater, aquiculture sewerage discharge etc. cause ammonia nitrogen pollution in water body to be on the rise, and cause water
The serious eutrophication of body, leads to aquatile mortality, causes ecological disruption and huge economic losses；It can also induce baby
Youngster's methemoglobinemia, and it can be converted to serious carcinogen, directly threaten human health.At the ammonia nitrogen for researching and developing high-efficiency and economic
Reason technology has become field of environment protection important topic.
Existing denitrogenation technology mostly uses traditional nitrification-denitrification technique, and ammonia nitrogen is successively converted into through nitrification, denitrification
For nitrogen to removal of degrading, typical process includes three-stage denitrification process, preposition Anoxybiotic-aerobic biologic denitrification process, postposition
Anoxybiotic-aerobic biologic denitrification process etc..Traditional denitrification process needs a large amount of aerations, supplement basicity and a large amount of organic carbon sources, flow
Excessively complicated, operating cost height.Short distance nitration-anaerobic ammoxidation technique is Process of Biological Nitrogen Removal, is a kind of most simple and direct
Autotrophic denitrification approach has many advantages, such as without organic carbon source, saves basicity, appropriate aeration, low sludge yield.
Bioreactor is the core equipment for realizing short distance nitration-anaerobic ammoxidation technique, and configuration directly affects short distance
Efficiency, operation stability of nitration-anaerobic ammoxidation technique etc..Existing short distance nitration-anaerobic ammoxidation bioreactor includes
There is different function flora collaboration in monomer reaction device to coexist for split type, two kinds of integral type, integral type, the spies such as cost of reducing investment outlay
It puts and is concerned.But there are Anammox functional floras easily to be influenced by aeration process for it, and whole denitrification ability is caused to be promoted
It is limited；Each functional flora ecological niche forces overlapping, there is the restriction to respective performance, can not play respective maximum capacity；It needs outer
Add-back flow device realizes basicity reuse balance, increases processing cost and process energy consumption；Effect of settling difference causes organism to be lost in, raw
The deficiencies of object amount is not high.The above deficiency constrains that integral type short distance nitration-anaerobic ammoxidation bioreactor is energy-saving, efficiency
It is promoted and engineer application is promoted.
Invention content
The purpose of the present invention is overcoming the shortcomings of existing integral type short distance nitration-anaerobic ammoxidation bioreactor, provide
A kind of self-loopa autotrophic denitrification bioreactor.The present invention realizes short distance nitration, Anammox work(by the way that isolation board is arranged
Energy flora ecological niche physical separation, makes respectively to play its maximum capacity；Aeration process pair is avoided by directly outer row's aeration residual air
The adverse effect of Anammox functional microorganism；By filling filler, setting three phase separator reduces biology loss, enhancing is heavy
Shallow lake effect, to improve sludge concentration；By setting reflux ring cavity, act on being formed in sewage with gas lift from drop using gravity
Reflux certainly and the balance of basicity are realized in portion's self-loopa.Experiment proof, the self-loopa autotrophic denitrification biological respinse utensil developed accordingly
There is good denitrification efficiency, and runs efficient stable.
In order to solve the above technical problems, the present invention is achieved by the following scheme：
Self-loopa autotrophic denitrification bioreactor of the present invention is cylindrical structure, can be by steel plate or organic glass system
Make, can be sewage water denitrification biological treatment integrated apparatus or the pin-connected panel module monomer treatment process structure different from other
At compound treatment facility.Self-loopa autotrophic denitrification bioreactor includes bioreactor main body, water inlet pipe, rotation water distributing
Device, microporous aeration disc, gas collection cap, gas discharging pipe, anaerobism exhaust pipe, aerobic sludge pipe, anaerobism sludge pipe, anaerobic water
Cover, three phase separator, reflux sieve tray I, reflux sieve tray II, cyclic annular reflux ring cavity, effluent trough, outlet pipe.Bioreactor
Main body is equipped with microporous aeration disc, turning spurt water device, gas collection cap, anaerobic water cover, gas discharging pipe, three successively from bottom to up
Phase separator, anaerobism exhaust pipe.Bioreactor main body wall is equipped with reflux sieve tray I, water inlet pipe, aerobic successively from bottom to up
Sludge pipe, anaerobism sludge pipe, reflux sieve tray II, effluent trough, outlet pipe.It is cased with cyclic annular backflow ring outside bioreactor main body
Chamber.Self-loopa autotrophic denitrification bioreactor can according to sectorization be divided into aerobic reactor zone, anaerobic reaction area, depositing separation area,
Recirculating zone.
Bioreactor main body ratio of height to diameter is 5~10 in the self-loopa autotrophic denitrification bioreactor.Aerobic reactor zone
It is identical as anaerobic reaction area diameter, highly than for (1.5~2)：1.
I horizontal sextant angle of sieve tray that flows back in the self-loopa autotrophic denitrification bioreactor is 45 °, and flow back II water of sieve tray
Flat angle is 30 °~60 °, and gas collection cap horizontal sextant angle is 45 °~60 °, and the horizontal sextant angle on anaerobic water cover top inclined-plane is
45 °~60 °.
Three phase separator ratio of height to diameter is 1~2 in the self-loopa autotrophic denitrification bioreactor.
Gas collection cap is engaged with the gas discharging seal of tube in the self-loopa autotrophic denitrification bioreactor, anaerobic water
Cover is engaged with the gas discharging seal of tube；Cloth is formed between reactor body, gas collection cap, gas discharging pipe, anaerobic water cover
Water ring chamber；Anaerobic water cover horizontal circle ring flat-plate, the gas discharging Guan Jun between gas collection cap and anaerobic water cover are provided with
Permeable circular hole, 0.5~5cm of Circularhole diameter；Gas discharging bore is 2~10cm.
Cyclic annular backflow ring chamber thickness is 2~5cm in the self-loopa autotrophic denitrification bioreactor.
Semi-soft fiberfill or fluidisation are filled in the self-loopa autotrophic denitrification bioreactor in aerobic reactor zone
Bed fillers, inside inoculation short distance nitration floc sludge；Anaerobic ammonium oxidation granular sludge is inoculated in anaerobic reaction area.
Beneficial effects of the present invention are as follows：
1) sludge withholding effect is good, and sludge concentration is high.Semi-soft fiberfill or fluidisation bed fillers are filled in aerobic reactor zone,
Short distance nitration microorganism can effectively be adhered to, effectively reduce sludge loss；Three phase separator setting can effective detention, the good gas of realization
Gu separation makes bioreactor keep higher sludge concentration.
2) aeration process is avoided to adversely affect reactor nitrogen removal performance.Gas collection cap, gas discharging pipe, anaerobic water
The design of shade assembly can make aerobic reactor zone water outlet be evenly distributed to anaerobic reaction area, and be aerated residual air and then avoid anaerobic reaction area
And directly outer row, its oxygen toxic action to follow-up Anammox functional flora is completely eliminated, to maintain reactor efficient
Stable operation.
3) reactor entirety nitrogen removal performance is improved.Using gas collection cap, gas discharging tube assembly realize short distance nitration,
The physical separation of Anammox functional flora ecological niche, avoids the restriction between different function flora, makes respectively to play it
Maximum capacity can greatly improve reactor nitrogen removal performance.
4) operating cost is saved.The design of reflux ring cavity makes full use of the gravity of anaerobic effluent to drop and aeration process gas certainly
Promotion forms self-circulation sewage, so that anaerobic ammonium oxidation process is generated basicity anti-from aerobic reactor zone supply short distance nitration is back to
It answers, being balanced from reuse for basicity can be realized without additional alkaline matter and refluxing unit, investment and operating cost can be reduced.
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into
One step is described in detail.The key that this part of the disclosure is not meant to attempt to limit technical solution claimed is special
It seeks peace essential features, does not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of the present invention will be described in detail and feature.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is self-loopa autotrophic denitrification bioreactor schematic diagram
Wherein, 1, bioreactor main body；2, aerobic reactor zone；3, anaerobic reaction area；4, depositing separation area；5, it intakes
Pipe；6, turning spurt water device；7, microporous aeration disc；8, flow back sieve tray I；9, recirculating zone；10, aerobic sludge pipe；11, anaerobism spoil disposal
Pipe；12, gas collection cap；13, gas discharging pipe；14, anaerobic water cover；15, effluent trough；16, outlet pipe；17, flow back sieve pore
Plate II；18, anaerobism exhaust pipe；19, cyclic annular reflux ring cavity；20, three phase separator.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and examples pair
The present invention is described in further detail.It should be appreciated that embodiment described herein is only used to explain the present invention, and do not have to
It is of the invention in limiting.
In the following description, a large amount of concrete details are given in order to provide more thorough understanding of the invention.So
And it will be apparent to one skilled in the art that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid with the present invention obscure, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed structure will be proposed in following description.Obviously, execution of the invention is simultaneously
It is not limited to the specific details that those skilled in the art is familiar with.Presently preferred embodiments of the present invention is described in detail as follows, however
Other than these detailed descriptions, the present invention can also have other embodiment.
The embodiment of the present invention is described in detail below in conjunction with attached drawing.
As shown, self-loopa autotrophic denitrification bioreactor is cylindrical structure, can be made by steel plate or organic glass,
Can be that sewage water denitrification biological treatment integrated apparatus or the pin-connected panel module monomer treatment process different from other are constituted and answered
Mould assembly treatment facility.Self-loopa autotrophic denitrification bioreactor include bioreactor main body 1, water inlet pipe 5, turning spurt water device 6,
Microporous aeration disc 7, gas collection cap 12, gas discharging pipe 13, anaerobism exhaust pipe 18, aerobic sludge pipe 10, anaerobism sludge pipe 11,
Anaerobic water cover 14, three phase separator 20, reflux sieve tray I 8, reflux sieve tray II 17, cyclic annular reflux ring cavity 19, effluent trough
15, outlet pipe 16.Bioreactor main body 1 is equipped with microporous aeration disc 7, turning spurt water device 6, gas collection cap successively from bottom to up
12, anaerobic water cover 14, gas discharging pipe 13, three phase separator 20, anaerobism exhaust pipe 18.1 side wall of bioreactor main body from
Under it is supreme successively be equipped with reflux sieve tray I 8, water inlet pipe 5, aerobic sludge pipe 10, anaerobism sludge pipe 11, reflux sieve tray II 17,
Effluent trough 15, outlet pipe 16.Cyclic annular reflux ring cavity 19 is cased with outside bioreactor main body 1.Self-loopa autotrophic denitrification biological respinse
Device can according to sectorization be divided into aerobic reactor zone 2, anaerobic reaction area 3, depositing separation area 4, recirculating zone 9.
Bioreactor main body ratio of height to diameter is 5~10 in the self-loopa autotrophic denitrification bioreactor.Aerobic reactor zone
It is identical as anaerobic reaction area diameter, highly than for (1.5~2)：1.Reflux screen in the self-loopa autotrophic denitrification bioreactor
I horizontal sextant angle of orifice plate be 45 °, reflux II horizontal sextant angle of sieve tray be 30 °~60 °, gas collection cap horizontal sextant angle be 45 °~
60 °, the horizontal sextant angle on anaerobic water cover top inclined-plane is 45 °~60 °.Three-phase in the self-loopa autotrophic denitrification bioreactor
Separator ratio of height to diameter is 1~2.Gas collection cap connects with the gas discharging seal of tube in the self-loopa autotrophic denitrification bioreactor
It closes, anaerobic water cover is engaged with the gas discharging seal of tube；Reactor body, gas collection cap, gas discharging pipe, anaerobic water cover
Between formed water distribution ring cavity；Outside anaerobic water cover horizontal circle ring flat-plate, the gas between gas collection cap and anaerobic water cover
Comb is provided with permeable circular hole, 0.5~5cm of Circularhole diameter；Gas discharging bore is 2~10cm.The self-loopa autotrophy is de-
Cyclic annular backflow ring chamber thickness is 2~5cm in nitrogen bioreactor.Aerobic reaction in the self-loopa autotrophic denitrification bioreactor
Filled with semi-soft fiberfill or fluidisation bed fillers, inside inoculation short distance nitration floc sludge in area；Anaerobic reaction area is inscribed
Kind anaerobic ammonium oxidation granular sludge.~
The self-loopa autotrophic denitrification bioreactor course of work of the present invention is as follows：Nitrogen-containing wastewater passes through rotation through water inlet pipe 5
Turn 6 water distribution uniformity of water distributor to the aerobic reactor zone 2 of self-loopa autotrophic denitrification bioreactor main body 1, and passes through the sieve plate I that flows back
The 8 reflux sewage certainly entered are sufficiently mixed under the agitaion that microporous aeration disc 7 generates bubble, and sewage is produced in aeration after mixing
Aerobic reactor zone 2 is flowed through under the castering action of anger bubble, is come into full contact with the short distance nitration microorganism for being attached to filler and suspension
Part mineralized nitrogen is nitrite in the process；Sewage passes through the gas between gas collection cap 12 and anaerobic water cover 14
Permeable circular hole on outer comb 14 enters anaerobic water ring cavity, and the residual gas of aeration process is then received by gas collection cap 12
It is expelled directly out through gas discharging pipe 14 after collection, the fraction entered in the process in anaerobic water ring cavity is aerated residual gas through anaerobism
It collects again and enters gas discharging pipe 14 after guide and be discharged in 14 top inclined-plane of water distribution cover；Sewage into anaerobic water ring cavity passes through
Enter the anaerobic reaction area of inoculation anaerobic ammonium oxidation granular sludge after the permeable circular hole water distribution uniformity being provided on anaerobic water cover 14
3, under anaerobic ammonium oxidation granular sludge effect, the nitrite that remaining ammonia nitrogen is generated with aerobic reactor zone 2 in sewage is detested
Anaerobic ammonium oxidation reaction generates nitrogen and generates certain basicity, and the part processing water after anaerobic reaction area 3 is through the sieve plate II that flows back
17 enter in the cyclic annular reflux ring cavity 19 of recirculating zone 9, sink down into reactor bottom under self gravitation effect, contain anaerobism ammonia oxygen
The recirculation water for the basicity that change process generates enters aerobic reactor zone 2 through the sieve plate I 8 that flows back, and mixes and provides short with reactor water inlet
Basicity needed for journey nitrifying process, to realize basicity self-balancing；The upper ease bubble generated in anaerobic reaction area 3 carries anaerobism ammonia oxygen
Change granule sludge and floats up to depositing separation area 4, the effects that collision, detention through three phase separator 20, guide, bubble and anaerobism ammonia
Oxidation particle sludge detaches, and generates gas and is discharged through anaerobism exhaust pipe 18 after the collection of three phase separator 20, granule sludge precipitation
To anaerobic reaction area 3, slit enters effluent trough 15 on the reacted device side wall of sewage after processing, is discharged through outlet pipe 16.
The present invention realizes short distance nitration, Anammox functional flora ecological niche physical separation, maximum hair by isolation board
Wave respective potential；By being aerated residual gas, individually outer row avoids unfavorable shadow of the aeration process to Anammox functional microorganism
It rings；By filling filler, setting three phase separator improves sludge concentration；Self-circulation sewage is formed by setting reflux ring cavity, it is real
The self-balancing of existing basicity.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (7)
1. a kind of self-loopa autotrophic denitrification bioreactor, it is characterised in that：The bioreactor main body is cylindrical structure,
It is outer to be cased with cyclic annular reflux ring cavity；The bioreactor main body is equipped with microporous aeration disc, turning spurt water device, gas successively from bottom to up
Body collecting hood, anaerobic water cover, gas discharging pipe, three phase separator, anaerobism exhaust pipe；The bioreactor main body wall from
Under it is supreme successively be equipped with reflux sieve tray I, water inlet pipe, aerobic sludge pipe, anaerobism sludge pipe, reflux sieve tray II, effluent trough, go out
Water pipe；Entire bioreactor is divided into aerobic reactor zone, anaerobic reaction area, depositing separation area, recirculating zone by function.
2. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：The bioreactor main body
Ratio of height to diameter is 5~10, and aerobic reactor zone is identical as anaerobic reaction area diameter, highly than for (1.5~2)：1.
3. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：I water of reflux sieve tray
Flat angle is 45 °, II horizontal sextant angle of reflux sieve tray be 30 °~60 °, the gas collection cap horizontal sextant angle be 45 °~
60 °, the horizontal sextant angle on anaerobic water cover top inclined-plane is 45 °~60 °.
4. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：The three phase separator Gao Jing
Than being 1~2.
5. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：The gas collection cap and gas
External comb is sealingly engaged, and the anaerobic water cover is engaged with the gas discharging seal of tube；The reactor body, gas collection
Cover forms water distribution ring cavity between gas discharging pipe, anaerobic water cover；The horizontal circle ring flat-plate of the anaerobic water cover, between gas
Gas discharging Guan Jun between collecting hood and anaerobic water cover is provided with permeable circular hole, 0.5~5cm of Circularhole diameter；Gas discharging pipe
Internal diameter is 2~10cm.
6. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：The cyclic annular reflux ring cavity is thick
Degree is 2~5cm.
7. self-loopa autotrophic denitrification bioreactor according to claim 1, it is characterised in that：It is filled out in the aerobic reactor zone
Filled with semi-soft fiberfill or fluidisation bed fillers, inside inoculation short distance nitration floc sludge；Inoculation in the anaerobic reaction area
Anaerobic ammonium oxidation granular sludge.
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| CN109231493A (en) * | 2018-10-26 | 2019-01-18 | 浙江海洋大学 | A kind of low C/N high ammonia-nitrogen wastewater processing unit |
| CN110526389A (en) * | 2019-08-30 | 2019-12-03 | 江苏南大环保科技有限公司 | A kind of biological denitrificaion three-phase separator vessel and biological denitrification reactor |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
| CN111115822A (en) * | 2020-01-20 | 2020-05-08 | 青岛思普润水处理股份有限公司 | PN/A integrated autotrophic nitrogen removal system based on MBBR and quick starting method |
| CN113060825A (en) * | 2021-04-15 | 2021-07-02 | 四川大学 | Anaerobic ammonia oxidation reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109231493A (en) * | 2018-10-26 | 2019-01-18 | 浙江海洋大学 | A kind of low C/N high ammonia-nitrogen wastewater processing unit |
| CN110526389A (en) * | 2019-08-30 | 2019-12-03 | 江苏南大环保科技有限公司 | A kind of biological denitrificaion three-phase separator vessel and biological denitrification reactor |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
| CN111115822A (en) * | 2020-01-20 | 2020-05-08 | 青岛思普润水处理股份有限公司 | PN/A integrated autotrophic nitrogen removal system based on MBBR and quick starting method |
| CN111115822B (en) * | 2020-01-20 | 2023-11-21 | 青岛思普润水处理股份有限公司 | PN/A integrated autotrophic nitrogen removal system based on MBBR and quick starting method |
| CN113060825A (en) * | 2021-04-15 | 2021-07-02 | 四川大学 | Anaerobic ammonia oxidation reactor |
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| Publication number | Publication date |
|---|---|
| CN108383241B (en) | 2023-07-25 |
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