CN209210469U - It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines - Google Patents
It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines Download PDFInfo
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- CN209210469U CN209210469U CN201821456527.5U CN201821456527U CN209210469U CN 209210469 U CN209210469 U CN 209210469U CN 201821456527 U CN201821456527 U CN 201821456527U CN 209210469 U CN209210469 U CN 209210469U
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- declines
- membrane bioreactor
- reactor according
- rapidly starting
- snad
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- 239000012528 membrane Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 29
- XUHVCHNJCBBXMP-UHFFFAOYSA-M sodium;10-[(2-hydroxybenzoyl)amino]decanoate Chemical compound [Na+].OC1=CC=CC=C1C(=O)NCCCCCCCCCC([O-])=O XUHVCHNJCBBXMP-UHFFFAOYSA-M 0.000 title claims abstract 7
- 239000010802 sludge Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000005273 aeration Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 239000012510 hollow fiber Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 15
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 5
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005261 decarburization Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000468339 Candidatus Brocadia Species 0.000 description 1
- 241001397818 Candidatus Jettenia Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241001453382 Nitrosomonadales Species 0.000 description 1
- KRALSLMQBUXNAP-UHFFFAOYSA-N ON=O.ON=O.ON=O.ON=O.ON=O.ON=O.N.N Chemical compound ON=O.ON=O.ON=O.ON=O.ON=O.ON=O.N.N KRALSLMQBUXNAP-UHFFFAOYSA-N 0.000 description 1
- CHBCHAGCVIMDKI-UHFFFAOYSA-N [F].C=C Chemical group [F].C=C CHBCHAGCVIMDKI-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The aerobic membrane bioreactor SNAD technique device for rapidly starting that declines is flowed up the utility model discloses a kind of, it declines in aerobic membrane bioreactor in up-flow, using low C/N than waste water as influent quality, initial start stage uses the method for operation of high sludge concentration 16.0g/L and low sludge loading 0.064kgCOD/kgSS.d, it is main to adjust DO by taking, temperature, the modes such as basicity are discharged the ratio between ammonia nitrogen and nitrite nitrogen in a certain range to control, and nitrogen load and carbon load are improved by shortening stop mode in time, quick start SNAD technique, realize that anaerobic ammonium oxidation granular coexists with floc sludge.There is the system high efficiency synchronous decarburization to denitrogenate removal effect, COD, NH4 +- N, TN removal rate be respectively 89%, 96%, 86%, occupied area is small, and easy to operate, low energy consumption.
Description
Technical field
The utility model belongs to technical field of sewage, in particular to a kind of up-flow denitrogenated for biological decarbonization declines
Aerobic membrane bioreactor short-cut nitrification and denitrification-Anammox (SNAD) technique device for rapidly starting.
Background technique
SNAD technique refers to short distance nitration, short-cut denitrification and the simultaneous novel biological dinitrification skill of Anammox
Art has the characteristics that low energy consumption, carbon source demand amount is small, sludge yield is low, occupied area is small, efficient denitrification is denitrogenated, and is suitable for C/N
Lower industrial wastewater or municipal wastewater.But since the anaerobic ammonia oxidizing bacteria generation cycle is long in SNAD system, to temperature, basicity etc.
Growth conditions require it is harsh, how quick start be always current urgent need to resolve problem, limit SNAD technique in engineering
Practical application.
Utility model content
The utility model aim is and unstable problem long for the SNAD technique starting period, proposes one kind in up-flow
It is dense to control dissolved oxygen in incubation by process unit for SNAD technique device for rapidly starting in micro- aerobic membrane bioreactor
Degree, water outlet NH4 +- N and NO2 -When membrane module retains sludge to realize the device for rapidly starting of SNAD technique to-N.
Technical solutions of the utility model are as follows:
It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines, comprising:
Cylinder reactor according 1 is provided with interlayer, the water inlet 4 of 1 bottom of cylinder reactor according by water inlet pipe with into
Water pump 2 is connected；The aeration opening 5 of 1 bottom of cylinder reactor according is connected by aeration tube with air pump 3, is arranged at aeration opening 5
There is aeration head 7；1 bottom of cylinder reactor according is provided with the mud discharging mouth 6 for discharging excess sludge；
Pvdf Microporous Hollow Fiber Membrane 8 built in the cylinder reactor according 1 is connected with membrane module 9, the membrane module 9
It is connected by outlet pipe with water outlet pump 12, the PLC device 10 of control interval water outlet is provided between membrane module 9 and water outlet pump 12
With the pressure vacuum gauge 11 for monitoring transmembrane pressure；
Water-bath circulating pump 13 realizes water-bath circulation by the interlayer of pipeline connecting cylinder reactor according 1.
Further, the 1 internal diameter 0.07m of cylinder reactor according, outer diameter 0.09m, height 1.2m, dischargeable capacity 4L.
Further, 0.3 μm of the film wire aperture of the Pvdf Microporous Hollow Fiber Membrane 8, effective membrane area 0.3m2。
Further, the aeration head 7 is the cylindrical titanium aeration head in 5 microns of aperture.
The matrix is low C/N (< 2:1) simulated wastewater, influent COD < 400mg/L, NH4 +- N concentration is 200mg/L, pH
In 7.8-8.0 range, temperature control is 30 DEG C -35 DEG C, and dissolved oxygen maintains 0.3-0.7mg/L, and basicity concentration is in 1400mg/
L-1800mg/L.The fortune of 0.0064 kgCOD/kgSS.d of high sludge concentration 16.0g/L and low sludge loading is used in initial start stage
Line mode.
The reactor 1 uses the up-flow method of operation, from bottom continuum micromeehanics, by between membrane module 9 and water outlet pump 12
It has a rest draining, every draining 12min rests 3min.In 1-26d, seed sludge is in domestication cultivation stage, and sludge loading is
0.064kgCOD/kgSS.d；Water inlet nitrogen load is 0.8kgNH4 +-N/(m3.d), hydraulic detention time 6h, this stage keep out
Water ammonia nitrogen and nitrite nitrogen are in 40-50mg/L.In 27-60d, control ammonia nitrogen synchronous removal, ammonia within the scope of 1:1-1:2 with nitrite nitrogen
Nitrogen is gradually decrease to 30mg/L, and TN removal rate improves.In 61-98d, Anammox flora concentration improves the stage, this
Sludge loading is promoted to 0.078kgCOD/kgSS.d by the stage, and water inlet nitrogen load promotes most 0.96kgNH4 +-N/(m3.d), water
Power shorter residence time is to 5h.
The advantage of the utility model is mainly reflected in:
(1) method of operation combined using film with micro- oxygen up-flow system, anaerobic ammonium oxidation granular are formed fastly, SNAD system
The system starting period is short, realizes anaerobic ammonium oxidation granular and coexists with floc sludge.
(2) the SNAD system cultivated is stablized, COD, NH4 +The removal rate of-N and TN can reach 89%, 96%, 86% respectively；
And know path analysis is denitrogenated, 38% total nitrogen is removed by Anammox, and 62% total nitrogen is removed by denitrification.
(3) simple process, occupied area is small, easy to operate, and less energy consumption is at low cost.
Detailed description of the invention
Fig. 1 is the structural representation provided by the utility model for flowing up the aerobic membrane bioreactor SNAD device for rapidly starting that declines
Figure, in which: 1- reactor, 2- intake pump, 3- air pump, 4- water inlet, 5- aeration opening, 6- mud discharging mouth, 7- aeration head, 8- gather inclined fluorine
Ethylene hollow-fibre membrane, 9- membrane module, 10-PLC device, 11- pressure vacuum gauge, 12- water outlet pump, 13- water-bath circulating pump.
Fig. 2 is the microscope photo of sludge metamorphosis during difference in utility model device operation.
Specific embodiment
To make those skilled in the art more fully understand the technical solution of the utility model, below with reference to embodiment to this
A kind of up-flow aerobic membrane bioreactor SNAD device for rapidly starting that declines that utility model provides is described in detail.Implement below
Example is merely to illustrate the range that the utility model rather than limits the present invention.
Embodiment 1
A kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines, reactor 1 is cylindrical body, is equipped with folder
Layer, internal diameter 0.07m, outer diameter 0.09m, height 1.2m, dischargeable capacity 4L.It is equipped with inside reactor 1 in Kynoar (PVDF)
Empty fiber membrane 8,0.3 μm of film wire aperture, effective membrane area 0.3m2。
The water inlet pipe connected with the bottom water inlet 4 of reactor 1 is connected with intake pump 2, with 1 bottom aeration opening 5 of reactor
The aeration tube of connection is connected with air pump 3, and the aeration head 7 being connected with aeration opening 5 is the cylindrical titanium aeration head in 5 microns of aperture,
Bottom mud discharging mouth 6 with reactor 1 is for discharging excess sludge.
The membrane module 9 being connected with hollow-fibre membrane 8 is connected with water outlet pump 12 by outlet pipe, in membrane module 9 and water outlet
The PLC device 10 of control interval water outlet program and the pressure vacuum gauge 11 for monitoring transmembrane pressure are equipped among pump 12.
Water-bath circulating pump 13 connects the interlayer of reactor 1, control water-bath circulation by pipeline.
The water inlet of reactor 1 is sent into reactor from the water inlet 4 of 1 bottom of reactor, air inlet pipe and 1 bottom of reactor
Aeration head 7 is connected for being aerated into reactor 1, guarantees the dissolved oxygen concentration in reactor 1, the water outlet of reactor 1 is by going out
Water pipe connection water outlet pump 12 is discharged with hollow-fibre membrane 8 and membrane module 9.
The response matrix for flowing up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines is low C/N (< 2:1) mould
Quasi- waste water, influent COD < 400mg/L, NH4 +- N concentration is 200mg/L, and pH is 30 DEG C -35 in 7.8-8.0 range, temperature control
DEG C, dissolved oxygen maintains 0.3-0.7mg/L, and basicity concentration is in 1400mg/L-1800mg/L.It is dense using high sludge in initial start stage
Spend the method for operation of 16g/L and low sludge loading 0.064kgCOD/kgSS.d.
Reactor 1 is intermittently arranged from bottom continuum micromeehanics by membrane module 9 and water outlet pump 12 using the up-flow method of operation
Water, every draining 12min rest 3min.In 1-26d, seed sludge is in domestication cultivation stage, and sludge loading is
0.064kgCOD/kgSS.d；Water inlet nitrogen load is 0.8kgNH4 +-N/(m3.d), hydraulic detention time 6h.This stage keeps out
Water ammonia nitrogen and nitrite nitrogen are in 40-50mg/L.In 27-60d, Anammox flora occurs, and ammonia nitrogen and nitrous nitrogen concentration ratio are 1:
Synchronous removal, ammonia nitrogen are gradually decrease to 30mg/L within the scope of 1-1:2, and TN removal rate improves.Illustrate bacterial activity
It improves, into next stage.In 61-98d, Anammox flora concentration improves the stage, and sludge loading is promoted to by this stage
0.078kgCOD/kgSS.d, water inlet nitrogen load promote most 0.96kgNH4 +-N/(m3.d), hydraulic detention time foreshortens to 5h.
Embodiment 2
A method of it realizes and flows up the aerobic membrane bioreactor SNAD technique starting that declines, comprising the following steps:
(1) inoculation of activated-sludge and pilot-plant
Using Beijing municipal treatment, commonly for cotton-shaped activated sludge as seed sludge, starting sludge concentration is 16g/L.It will
It is inoculated in membrane biological reaction apparatus in (Fig. 1) reaction unit, and reactor is cylinder, and internal diameter 0.07m, height 1.2m have
Volume 4L is imitated, built-in Kynoar (PVDF) hollow fiber film assembly has collet to carry out heating water bath outside, keeps reactor temperature
Degree is at 30 DEG C -35 DEG C, and dissolved oxygen maintains 0.3-0.7mg/L, and basicity concentration is in 1400mg/L-1800mg/L.
(2) water intake mode
It is water inlet matrix with low C/N (1-2:1) simulated wastewater, sewage is entered instead by the water inlet 4 of reactor bottom
Device is answered, the main composition of sewage is shown in Table 1.
Table 1: wastewater parameters
| Component | Content |
| COD(mg/L) | < 400 |
| NH4 +-N(mg/L) | 200 |
| TP(mg/L) | 12 |
| Ca2+(mg/L) | 29 |
| Mg2+(mg/L) | 65 |
(3) forming process
The method of operation of high sludge concentration 16g/L and low sludge loading 0.064kgCOD/kgSS.d are used in initial start stage.
In 1-26d, seed sludge is in domestication cultivation stage, sludge loading 0.064kgCOD/kgSS.d；Nitrogen of intaking is negative
Lotus is 0.8kgNH4 +-N/(m3.d), hydraulic detention time 6h.This stage keeps water outlet ammonia nitrogen and nitrite nitrogen in 40-50mg/
L。
In 27-60d, Anammox flora occurs, ammonia nitrogen and nitrous nitrogen concentration ratio within the scope of 1:1-1:2 synchronize go
It removes, ammonia nitrogen is gradually decrease to 30mg/L, and TN removal rate is also improved by 52% to 60%.Anaerobic ammoxidation activity at this time is more micro-
Weak, macroscopic appearance is also unobvious.
In 61-98d, Anammox flora concentration improves the stage, and sludge loading is promoted to by this stage
0.078kgCOD/kgSS.d, water inlet nitrogen load promote most 0.96kgNH4 +-N/(m3.d), hydraulic detention time foreshortens to 5h.
Hereafter ammonia nitrogen and the decline of nitrous nitrogen concentration are obvious, and water outlet ammonia nitrogen concentration is down to 7mg/L, and ammonia nitrogen removal frank is stablized 96% or more,
Nitrogen removal rate is also improved by 60% to 86%.When Anammox reaction further strengthens, the amount that ammonia nitrogen is utilized by AOB subtracts
Few, AOB is also reduced accordingly using the amount of oxygen, and aeration quantity further decreases, and anaerobic zone is accordingly increased in system, is discharged COD
Removal rate improved by 70% to 89%, and keep stable.
Macroscopically, it is apparent that red bacterium granule sludge (see picture 2) is analyzed on microcosmic by high-flux sequence
The variation of flora group and abundance, detect two kinds of Anammox strains be respectively Candidatus Brocadia and
Candidatus Jettenia。
It is explained in detail above in conjunction with example of the embodiment to the utility model, but the utility model is not limited to
Example is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of the various change made, also should be regarded as the protection scope of the utility model.
Claims (4)
- The aerobic membrane bioreactor SNAD technique device for rapidly starting 1. a kind of up-flow declines characterized by comprisingCylinder reactor according (1) is provided with interlayer, the water inlet (4) of cylinder reactor according (1) bottom by water inlet pipe with Intake pump (2) is connected；The aeration opening (5) of cylinder reactor according (1) bottom is connected by aeration tube with air pump (3), is aerated Aeration head (7) are provided at mouth (5)；Cylinder reactor according (1) bottom is provided with the mud discharging mouth for discharging excess sludge (6)；Pvdf Microporous Hollow Fiber Membrane (8) built in the cylinder reactor according (1) is connected with membrane module (9), the film group Part (9) is connected by outlet pipe with water outlet pump (12), and control interval water outlet is provided between membrane module (9) and water outlet pump (12) PLC device (10) and pressure vacuum gauge (11) for monitoring transmembrane pressure；Water-bath circulating pump (13) realizes water-bath circulation by the interlayer of pipeline connecting cylinder reactor according (1).
- The aerobic membrane bioreactor SNAD technique device for rapidly starting 2. up-flow according to claim 1 declines, feature exist In cylinder reactor according (1) the internal diameter 0.07m, outer diameter 0.09m, height 1.2m, dischargeable capacity 4L.
- The aerobic membrane bioreactor SNAD technique device for rapidly starting 3. up-flow according to claim 1 or 2 declines, feature It is, 0.3 μm of the film wire aperture of the Pvdf Microporous Hollow Fiber Membrane (8), effective membrane area 0.3m2。
- The aerobic membrane bioreactor SNAD technique device for rapidly starting 4. up-flow according to claim 3 declines, feature exist In the aeration head (7) is the cylindrical titanium aeration head in 5 microns of aperture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456527.5U CN209210469U (en) | 2018-09-06 | 2018-09-06 | It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456527.5U CN209210469U (en) | 2018-09-06 | 2018-09-06 | It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines |
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| Publication Number | Publication Date |
|---|---|
| CN209210469U true CN209210469U (en) | 2019-08-06 |
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ID=67453731
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| CN201821456527.5U Expired - Fee Related CN209210469U (en) | 2018-09-06 | 2018-09-06 | It is a kind of to flow up the aerobic membrane bioreactor SNAD technique device for rapidly starting that declines |
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| Country | Link |
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2018
- 2018-09-06 CN CN201821456527.5U patent/CN209210469U/en not_active Expired - Fee Related
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