CN106006963A - Device and method for synchronous SBR denitrifying phosphorus removal and internal source short-range denitrifying anaerobic ammonia oxidation - Google Patents
Device and method for synchronous SBR denitrifying phosphorus removal and internal source short-range denitrifying anaerobic ammonia oxidation Download PDFInfo
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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
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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Abstract
The invention provides a device and method for synchronous SBR denitrifying phosphorus removal and internal source short-range denitrifying anaerobic ammonia oxidation, and belongs to the field of biological treatment of sewage. The device mainly comprises an urban sewage raw water tank, an anaerobic/anoxic SBR, an intermediate water tank, an all-way nitrifying SBR, a blast aerator and a water drainage tank. Urban sewage with low C/N enters the anaerobic/anoxic SBR at first, PAOs carries out anaerobic phosphorus release, and meanwhile, the urban sewage is stored as an internal carbon source PHA by COD in raw water. Anaerobic/anoxic SBR denitrifying phosphorus-accumulating bacteria exist as bio-flocculate, short-range denitrifying bacteria and anaerobic ammonium oxidation bacteria which have long sludge age exist as biological membranes and grow in packing of a reactor, and the SBR discharges flocculate sludge at regular intervals to remove phosphorous, so that competition of different bacteria to the sludge age is avoided. By the device and method, N, P and COD of the urban sewage with low C/N can be removed effectively, and an external carbon source is not required; the problem that NO2<-> is difficult to obtain stably by short-range nitrifying is solved; a new treatment mode is provided for wastewater containing NO3<-> and P.
Description
Technical field
The present invention relates to a kind of SBR denitrification dephosphorization and synchronize the apparatus and method of endogenous short-cut denitrification Anammox,
Belong to technical field of biological sewage treatment.
Background technology
Body eutrophication problem obtains global concern day by day, and cause the immediate cause of body eutrophication be N,
P element excess emissions is in water body, and therefore sewage denitrification and dephosphorization has become a study hotspot.Wastewater treatment in China is mainly deposited
Technical barrier have: sewage carbon source is not enough, and nitrogen phosphorus ligands is inefficient, and sewage treatment plant's processing cost is high, and water outlet reaches
Less than problems such as one-levels A.
Delft university of Holland develops the new technology Anammox of a kind of Sewage Biological Treatment in 20 end of the centurys
(Anammox)。NH4 +And NO2 -Under the effect of anaerobic ammonia oxidizing bacteria, it is not necessary to carbon source, autotrophic denitrification.Compare tradition
Nitrification/denitrification denitrogenation process, Anammox denitrogenation is greatly saved oxygen demand and need not Organic substance, significantly dropping
Low reaction cost.Additionally, Anammox course of reaction only produces nitrate nitrogen and nitrogen, there is no the generation of nitrous oxide,
Therefore there is no secondary pollution.Sludge yield is the lowest simultaneously, saves Treatment of Sludge expense.As can be seen here, Anammox skill
Art is a kind of novel energy-conservation, low cost, environmentally friendly autotrophic denitrification technology.Along with sending out of Anammox technology
Bright, the problem bands such as the low ratio of carbon to ammonium denitrogenation of waste water faced to China's current sewage disposal interface is difficult, energy consumption is high, sludge yield is big
Carry out dawn.
But Anammox technology can only denitrogenation can not dephosphorization.And the premise realizing Anammox is to realize stablizing
Short distance nitration, but NOB (NOB) bad control, therefore practical situation is not easy to realize stable
The accumulation of nitrite.Through the unremitting effort of researcher, it is found that again short-cut denitrification Anammox technology,
And short-cut denitrification and Anammox are all to carry out in the environment of anoxia.It is not unique, but has its counterpart, and Denitrifying Phosphorus Removal Technology is also
Carry out under conditions of anoxia.Therefore, be just that two kinds of process integration combine and provide possibility, thus can dephosphorization again
Energy denitrogenation, the advantage also taking full advantage of two kinds of techniques.This also provides a kind of new place for the waste water containing nitrate and phosphorus
Reason thinking.
Summary of the invention
The technical problem to be solved is to provide a kind of SBR denitrification dephosphorization and synchronizes endogenous short-cut denitrification anaerobism
The apparatus and method of ammoxidation, solve current sewage disposal carbon source not enough, and water outlet does not reach one-level A and processing cost is high
Etc. problem, it is achieved stable denitrogenation dephosphorizing.COD is saved as internal carbon source by anaerobic/anoxic SBR (2) first anaerobism stirring
PHA, it is to avoid the aerobic section after wastes carbon source valuable in sewage, simultaneously anaerobic phosphorus release.Anoxia section utilizes interior carbon
Source and complete nitrification liquid carry out denitrification dephosphorization, and the internal carbon source PHA simultaneously utilizing nitrate nitrogen and anaerobism section to store carries out short
Journey denitrification obtains nitrite nitrogen, and then the ammonia nitrogen in the former water of not row in nitrite nitrogen and anaerobic/anoxic SBR (2)
Carry out Anammox reaction.The part nitrate nitrogen being Anammox generation the most cleverly again can be as short-cut denitrification
Continue to remove, the nitrate that therefore nitrate nitrogen in water outlet generates less than Anammox.
A kind of SBR denitrification dephosphorization synchronizes the device of endogenous short-cut denitrification Anammox, it is characterised in that: include
Municipal sewage raw water box (1), anaerobic/anoxic SBR (2), the first intermediate water tank (3), the second intermediate water tank (4),
Complete nitrification SBR (5), blast aeration machine (6), water tank (7).Wherein said municipal sewage raw water box (1)
Being connected with anaerobic/anoxic SBR (2) by the first intake pump (1.1), anaerobic/anoxic SBR (2) passes through first row
Water valve (2.4) is connected with the first intermediate water tank (3), and the first intermediate water tank (3) passes through the second intake pump (5.1)
Being connected with complete nitrification SBR (5), complete nitrification SBR (5) is middle with second by second row water valve (5.3)
Water tank (4) is connected, and the second intermediate water tank (4) is by the 3rd intake pump (2.7) and anaerobic/anoxic SBR (2)
Being connected, anaerobic/anoxic SBR (2) is connected with water tank (7) by the 3rd drain valve (2.5), blast aeration
Machine (6) is connected with complete nitrification SBR (5) by intake valve (5.8).
Further, described anaerobic/anoxic SBR (2) reactor is built-in with: the first stirring paddle (2.2), first enters
Water valve (2.1), the 3rd water intaking valve (2.3), first row water valve (2.4), the 3rd drain valve (2.5), the first spoil disposal
(sampling) valve (2.6), short-cut denitrification bacterium biomembrane sponge filler (2.8), anaerobic ammonia oxidizing bacteria biomembrane sponge
Filler (2.9), the volume packing ratio of filler is 20-30%.
Further, described complete nitrification SBR (5) reactor is built-in with: the second stirring paddle (5.6), aeration head (5.7)
Second water intaking valve (5.4), second row water valve (5.3), the second sampling valve (5.2), second row slurry valve (5.5), enters
Air valve (5.8).
The present invention also provides for a kind of method that SBR denitrification dephosphorization synchronizes endogenous short-cut denitrification Anammox, including
Following steps:
1) the reactor start-up stage: anaerobic/anoxic SBR inoculates traditional wastewater treatment plant returned sludge, makes in reactor
Sludge concentration is 2500～3500mg/L, and inoculation has hung up properly the biomembranous sponge filler of short-cut denitrification and hung up properly
The biomembranous sponge filler of Anammox.The packing ratio of two kinds of fillers is 20-30%.Complete nitrification SBR inoculates biography
System Sewage Plant returned sludge, making sludge concentration in reactor is 2500～3500mg/L.
2) the properly functioning regulation and control of reactor: city domestic sewage enters into municipal sewage raw water box (1), enters by first
Water pump (1.1) municipal sewage enters in anaerobic/anoxic SBR (2), carry out anaerobism stirring 1-2h, sedimentation and drawing,
Draining, than for 40-50%, is drained into the first intermediate water tank (3).Anaerobic/anoxic SBR (2) is rich in NH4+'s
Water outlet then passes through the second intake pump (5.1) and enters into complete nitrification SBR (5), aeration 3-6h, and dissolved oxygen controls
2-8mg/L, sedimentation and drawing, draining, than for 40-50%, is drained into the second intermediate water tank (4).Rich in NO3-
Complete nitrification SBR (5) draining enter into anaerobic/anoxic SBR (2) by the 3rd intake pump (2.7), lack
Oxygen stirring 2-4h, sedimentation and drawing, draining ratio is for 80-85%, and final outflow water enters water tank (7), completes a cycle,
Then next cycle is carried out.Wherein anaerobic/anoxic SBR (2) floc sludge sludge age is maintained at 12-16d.
A kind of SBR denitrification dephosphorization synchronizes the apparatus and method of endogenous short-cut denitrification Anammox, has the most excellent
Point:
1) effectively combine short-cut denitrification dephosphorization, the advantage of short-cut denitrification anaerobic ammonia oxidation process, it is achieved that nitrogen and
The synchronization of phosphorus is removed.
2) carbon source being effectively utilized in sewage, short-cut denitrification saves carbon source, it is not necessary to adds outer carbon source, saves into
This.Low C/N sewage can be processed.
3) technique is simple and easy to control, it is possible to stably realize denitrogenation dephosphorizing.
4) it is containing NO3 -A kind of new roadmap is provided with the waste water of P.
Accompanying drawing explanation
Fig. 1 is that the apparatus structure of the present invention a kind of SBR denitrification dephosphorization endogenous short-cut denitrification Anammox of synchronization shows
It is intended to.
In Fig. 1: 1 be municipal sewage raw water box, 2 be anaerobic/anoxic SBR, 3 be the first intermediate water tank, 4 be second
Intermediate water tank, 5 for complete nitrification SBR, 6 for blast aeration machine, 7 for water tank, 1.1 be the first intake pump, 2.1
It is the first water intaking valve, 2.2 is the first stirring paddle, 2.3 is the 3rd water intaking valve, 2.4 is first row water valve, 2.5 is the 3rd row
Water valve, 2.6 be the first spoil disposal (sampling) valve, 2.7 be the 3rd intake pump, 2.8 for short-cut denitrification bacterium biomembrane sponge
Filler, 2.9 for anaerobic ammonia oxidizing bacteria biomembrane sponge filler, 5.1 be the second intake pump, 5.2 be the second sampling valve, 5.3
For second row water valve, 5.4 be the second water intaking valve, 5.5 for second row slurry valve, 5.6 be the second stirring paddle, 5.7 for aeration head,
5.8 is intake valve.
Detailed description of the invention
Embodiment of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
A kind of SBR denitrification dephosphorization synchronizes the device of endogenous short-cut denitrification Anammox, including city
City's sewage raw water box (1), anaerobic/anoxic SBR (2), the first intermediate water tank (3), the second intermediate water tank (4),
Complete nitrification SBR (5), blast aeration machine (6), water tank (7).Wherein said municipal sewage raw water box (1)
Being connected with anaerobic/anoxic SBR (2) by the first intake pump (1.1), anaerobic/anoxic SBR (2) passes through first row
Water valve (2.4) is connected with the first intermediate water tank (3), and the first intermediate water tank (3) passes through the second intake pump (5.1)
Being connected with complete nitrification SBR (5), complete nitrification SBR (5) is middle with second by second row water valve (5.3)
Water tank (4) is connected, and the second intermediate water tank (4) is by the 3rd intake pump (2.7) and anaerobic/anoxic SBR (2)
Being connected, anaerobic/anoxic SBR (2) is connected with water tank (7) by the 3rd drain valve (2.5), blast aeration
Machine (6) is connected with complete nitrification SBR (5) by intake valve (5.8).
Described anaerobic/anoxic SBR (2) reactor is built-in with: the first stirring paddle (2.2), the first water intaking valve (2.1),
3rd water intaking valve (2.3), first row water valve (2.4), the 3rd drain valve (2.5), the first spoil disposal (sampling) valve (2.6),
Short-cut denitrification bacterium biomembrane sponge filler (2.8), anaerobic ammonia oxidizing bacteria biomembrane sponge filler (2.9), filler
Volume packing ratio is 20-30%.
Described complete nitrification SBR (5) reactor is built-in with: the second stirring paddle (5.6), aeration head (5.7) second
Water intaking valve (5.4), second row water valve (5.3), the second sampling valve (5.2), second row slurry valve (5.5), intake valve
(5.8)。
With Beijing university dependents' district sanitary sewage, investigating the denitrogenation dephosphorizing de-carbon performance of system, the concrete water quality of former water is as follows:
COD concentration is 120～260mg/L, NH4 +-N concentration is 50～75mg/L, NO2 --N concentration < 0.1mg/L, NO3 --N
< 0.8mg/L, P concentration is 5～7mg/L to concentration, and pH is 7～8.Pilot system is as it is shown in figure 1, reactor employing has
Machine glass makes, and anaerobic/anoxic SBR (2) and complete nitrification SBR (5), dischargeable capacity is 10L.
Carrying out practically operation is as follows:
1) the reactor start-up stage: anaerobic/anoxic SBR inoculates traditional wastewater treatment plant returned sludge, makes in reactor
Sludge concentration is 3200mg/L, and inoculation has hung up properly the biomembranous sponge filler of short-cut denitrification and hung up properly anaerobism
The biomembranous sponge filler of ammoxidation.The packing ratio of two kinds of fillers is 20-30%.Complete nitrification SBR inoculation tradition is dirty
Water factory's returned sludge, making sludge concentration in reactor is 3300mg/L.
2) the properly functioning regulation and control of reactor: city domestic sewage enters into municipal sewage raw water box (1), enters by first
Water pump (1.1) municipal sewage enters in anaerobic/anoxic SBR (2), carry out anaerobism stirring 1-2h, sedimentation and drawing,
Draining, than for 40-50%, is drained into the first intermediate water tank (3).Anaerobic/anoxic SBR (2) is rich in NH4+'s
Water outlet then passes through the second intake pump (5.1) and enters into complete nitrification SBR (5), aeration 3-6h, and dissolved oxygen controls
2-8mg/L, sedimentation and drawing, draining, than for 40-50%, is drained into the second intermediate water tank (4).Rich in NO3-
Complete nitrification SBR (5) draining enter into anaerobic/anoxic SBR (2) by the 3rd intake pump (2.7), lack
Oxygen stirring 2-4h, sedimentation and drawing, draining ratio is for 80-85%, and final outflow water enters water tank (7), completes a cycle,
Then next cycle is carried out.Anaerobic/anoxic SBR (2) and complete nitrification SBR (5) sludge concentration are held in
2500～3500mg/L, wherein anaerobic/anoxic SBR (2) floc sludge sludge age is maintained at 12-16d.
Under this service condition, final outflow water average COD, NH4+-N, NO2--N, NO3--N, TN, TP divide
Wei 36.32mg/L, 1.64mg/L, 1.73mg/L, 3.26mg/L, 6.63mg/L, 0.214mg/L.The each water quality of water outlet
Index all reaches one-level A standard.
It is above the specific embodiment of the present invention, it is simple to these those skilled in the art are better understood on and apply this
Bright, but the enforcement of the present invention is not limited to this, and the simple modifications that therefore present invention is done by these those skilled in the art is all
Within scope.
Claims (2)
1. SBR denitrification dephosphorization synchronizes a device for endogenous short-cut denitrification Anammox,
It is characterized in that: include municipal sewage raw water box (1), anaerobic/anoxic SBR (2), in first
Between water tank (3), the second intermediate water tank (4), complete nitrification SBR (5), blast aeration machine (6)
With water tank (7)；Wherein said municipal sewage raw water box (1) passes through the first intake pump (1.1)
Being connected with anaerobic/anoxic SBR (2), anaerobic/anoxic SBR (2) passes through first row water valve (2.4)
Being connected with the first intermediate water tank (3), the first intermediate water tank (3) passes through the second intake pump (5.1)
Being connected with complete nitrification SBR (5), complete nitrification SBR (5) passes through second row water valve (5.3)
Being connected with the second intermediate water tank (4), the second intermediate water tank (4) passes through the 3rd intake pump (2.7)
Being connected with anaerobic/anoxic SBR (2), anaerobic/anoxic SBR (2) passes through the 3rd drain valve (2.5)
Being connected with water tank (7), blast aeration machine (6) passes through intake valve (5.8) and complete nitrification
SBR (5) is connected；
Described anaerobic/anoxic SBR (2) reactor is built-in with: the first stirring paddle (2.2), and first
Water intaking valve (2.1), the 3rd water intaking valve (2.3), first row water valve (2.4), the 3rd drain valve (2.5),
First spoil disposal (sampling) valve (2.6), short-cut denitrification bacterium biomembrane sponge filler (2.8), detest
Anaerobic ammonium oxidation bacterium biomembrane sponge filler (2.9), the volume packing ratio of filler is 20-30%；
Described complete nitrification SBR (5) reactor is built-in with: the second stirring paddle (5.6), aeration
Head (5.7) second water intaking valves (5.4), second row water valve (5.3), the second sampling valve (5.2),
Second row slurry valve (5.5), intake valve (5.8).
2. the method answering device described in claim 1, it is characterised in that following steps:
1) the reactor start-up stage: anaerobic/anoxic SBR inoculates the backflow dirt of traditional wastewater treatment plant
Mud, making sludge concentration in reactor is 2500～3500mg/L, and inoculation has hung up properly the anti-nitre of short distance
Change biomembranous sponge filler and hung up properly the biomembranous sponge filler of Anammox；Fill out for two kinds
The packing ratio of material is 20～30%；Complete nitrification SBR inoculates traditional wastewater factory returned sludge, makes
In reactor, sludge concentration is 2500～3500mg/L；
2) the properly functioning regulation and control of reactor: city domestic sewage enters into municipal sewage raw water box
(1), enter in anaerobic/anoxic SBR (2) by the first intake pump (1.1) municipal sewage,
Carrying out anaerobism stirring 1-2h, sedimentation and drawing, draining ratio for 40-50%, is drained in first
Between water tank (3)；Anaerobic/anoxic SBR (2) is rich in NH4 +Water outlet then pass through the second intake pump
(5.1) entering into complete nitrification SBR (5), aeration 3-6h, dissolved oxygen controls at 2-8mg/L,
Sedimentation and drawing, draining, than for 40-50%, is drained into the second intermediate water tank (4)；Rich in NO3 -
Complete nitrification SBR (5) draining enter into anaerobic/anoxic SBR by the 3rd intake pump (2.7)
(2), carrying out anoxia stirring 2-4h, sedimentation and drawing, draining is than for 80-85%, and final outflow water is entered
Enter water tank (7), complete a cycle, then carry out next cycle；Wherein anaerobic/anoxic
SBR (2) floc sludge sludge age is maintained at 12-16d.
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Cited By (12)
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| CN107235557A (en) * | 2017-07-12 | 2017-10-10 | 北京工业大学 | A kind of energy-saving enhanced endogenesis denitrification couples the apparatus and method that low DO nitrifies advanced nitrogen |
| CN109110924A (en) * | 2018-09-26 | 2019-01-01 | 上海力脉环保设备有限公司 | A kind of simultaneous phosphorus and nitrogen removal sbr reactor device |
| CN109970200A (en) * | 2019-04-30 | 2019-07-05 | 北京工业大学 | Device and method based on short-cut denitrification dephosphorization coupling Anammox processing city domestic sewage |
| CN110182953A (en) * | 2019-07-11 | 2019-08-30 | 广州碧疆环境科技有限公司 | A kind of high load capacity underground infiltration sewage treatment system and method |
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| CN107235557A (en) * | 2017-07-12 | 2017-10-10 | 北京工业大学 | A kind of energy-saving enhanced endogenesis denitrification couples the apparatus and method that low DO nitrifies advanced nitrogen |
| CN109110924A (en) * | 2018-09-26 | 2019-01-01 | 上海力脉环保设备有限公司 | A kind of simultaneous phosphorus and nitrogen removal sbr reactor device |
| CN110386742A (en) * | 2018-10-31 | 2019-10-29 | 青岛大学 | A kind of continuous flow biofilm reactor and the method for realizing endogenous short-cut denitrification dephosphorization coupling Anammox |
| CN109970200B (en) * | 2019-04-30 | 2021-10-01 | 北京工业大学 | Device and method for treating urban domestic sewage based on coupling of short-cut denitrification dephosphorization and anaerobic ammonia oxidation |
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