CN108585198A - A method of short distance nitration Anammox denitrogenation is strengthened based on filler assembly - Google Patents
A method of short distance nitration Anammox denitrogenation is strengthened based on filler assembly Download PDFInfo
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- CN108585198A CN108585198A CN201810363805.0A CN201810363805A CN108585198A CN 108585198 A CN108585198 A CN 108585198A CN 201810363805 A CN201810363805 A CN 201810363805A CN 108585198 A CN108585198 A CN 108585198A
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
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- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses the methods for strengthening short distance nitration Anammox denitrogenation based on filler assembly.Device is by intake pool, fixed biofilm activated sludge reactor (IFAS), sedimentation basin, filler assembly composition.Raw water enters IFAS systems by intake pool, completes short distance nitration Anammox herein, to make mineralized nitrogen be nitrogen, completes sewage water denitrification.The present invention provides the startup of the application method of filler assembly and short distance nitration Anammox, strengthen operation reserve.
Description
Technical field
The present invention relates to a kind of methods for strengthening short distance nitration Anammox denitrogenation based on filler assembly.
Background technology
Short distance nitration Anammox：Ammonia nitrogen in sewage is oxidized to nitrous by ammonia oxidation bacteria (AOB), subsequent remaining ammonia nitrogen
Denitrogenation is completed immediately using nitrogen is reduced to by anaerobic ammonia oxidizing bacteria (Anammox) with the nitrous of generation.Therefore with traditional nitre
Change denitrification process to compare, short distance nitration Anammox can save 62.5% aeration quantity, 100% carbon source, sludge yield
It is low.But anaerobic ammonia oxidizing bacteria growth cycle is long, it is difficult to maintain biomass in a continuous flow reactor.Biofilm sewage disposal skill
Art is a kind of widely used sewage disposal technology.Filler is added in sewage treatment structure, Anammox is in filler table
Face aggregation growth is to form biomembrane.Ammonia oxidation bacteria in biomembrane and anaerobic ammonia oxidizing bacteria collective effect realize that sewage is de-
Nitrogen.
To cope with increasingly strict effluent-disposal standard and growing sewage quantity.There is an urgent need for efficient stables, sustainable
Short distance nitration Anammox integral process.And need to mainly solve the problems, such as be：How anaerobic ammonia oxidizing bacteria is efficiently withheld；Such as
What cooperative development ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria；Denitrification ability caused by how solving mass transfer unevenness is bad.
In view of the above problems, a kind of large space is polymorphic, can efficiently retain anaerobic ammonia oxidizing bacteria, spatial level is conducive to clearly
The filler needs of mass transfer are invented；How quickly to start simultaneously and the technique of strengthened denitrification and method need to propose.
The present invention provides a kind of sewage-treatment plants for strengthening short distance nitration Anammox denitrogenation based on filler assembly
And method, by a kind of simple in structure, telescopic folding, succinct, the convenient filler assembly of transportation economics, and regulation and control operation are installed
Method enhanced biological nitrogen removal.
A method of short distance nitration Anammox denitrogenation is strengthened based on filler assembly, it is characterised in that：It is applied
Device includes intake pool (11), reaction tank (12), sedimentation basin (13) and filler assembly；
Raw water enters reaction tank (12) by intake pump (14), and the bottom of reaction tank (12) is equipped with micro-pore aeration pipeline (19), the pipe
Road is connected with aerating system (17), carries out low-oxygen aeration, DO 0.1-0.5mg/L, and simultaneous reactions pond is equipped with blender (15), even
Continuous stirring, hydraulic detention time 6-9h, it is reacted after muddy water mixed solution enter sedimentation basin (13) and complete mud-water separation, supernatant by
Outside water outlet (21) discharge system, excess sludge is pumped into the front end of reaction tank by reflux pump (16), completes biological denitrificaion；Reaction tank
(12) fixed biofilm activated sludge reactor is formed by suspended sludge and filler assembly, suspended sludge is short distance nitration anaerobism ammonia
Oxidized sludge；
Filler assembly includes polyurethane filler (5), flexible support (4) and steel wire rope (6), the filler assembly have compressive state and
Two kinds of forms of unfolded state, compressive state (1) length=50-300cm, height=5-20cm, wide=2-5cm, unfolded state (2) length=
35-250cm, height=25-100cm, wide=2-5cm, unfolded state have 700-50000cm2Surface area；700-50000cm2Table
Area can withhold biomembrane sludge concentration and reach 7000-20000mg/L；Stainless steel I-shaped is equipped with more than reaction tank (12) liquid level
Crossbeam (18), for fixing filler assembly top junction, reaction tank (12) bottom is equipped with I-beam (22), is filled out for fixation
Expect component bottom junction；The polyurethane filler (5) is fixed on by steel wire rope (6) sliding in telescopic flexible holder (4).
The application method of filler assembly and the operation reserve of short distance nitration Anammox：
1), filler assembly is unfolded:Draw ring (8) are loosened, the fixation steel wire rope being wrapped on compressive state (1) biologic packing material is made
(6) it unlocks, biologic packing material by gravity at unfolded state (2), complete by biologic packing material expansion；
2), the fixed installation of filler assembly：One end with draw ring (8) is upper end, by the junction of upper end) in a manner of nut
It is fixed on the crossbeam (18) of reaction tank upper end；Draw ring (8) is hung on crossbeam, and reaction tank is fixed in the lower end junction of biologic packing material
The crossbeam (22) of bottom；
3), the startup and operation of fixed biofilm activated sludge process short distance nitration Anammox：Flco short distance nitration is taken to detest
The sludge input of anaerobic ammonium oxidation has been fixed in the reaction tank (12) of filler assembly, sludge concentration 3000-4500mg/L, continuously
Uninterrupted stirring (15), aerating system (17) continuously open, and DO is between 0.1-0.5mg/L, the original of ammonia nitrogen concentration 200mg/L
Water enters reaction tank (12) by intake pump (14), and hydraulic detention time is 6-9 hours, and muddy water mixed solution enters after biochemical reaction
Sedimentation basin (13) complete mud-water separation, supernatant by water outlet (21) discharge system outside, excess sludge is pressed by reflux pump (16)
100% reflux ratio is pumped into the front end of reaction tank (12), and when filler assembly biomembrane reaches maturation, biofilm thickness is in 0.5-
1mm, biomembrane sludge concentration reach 7000-20000mg/L；
4), filler assembly strengthens short distance nitration Anammox：Filler assembly compressive state (1), unfolded state (2) can phases
Co-conversion form；For filler assembly biofilm thickness after 0.5-1mm, polyurethane filler (5) surface can form granule sludge, this
When draw ring (8) need to only be tightened, allow filler assembly to be in compressive state (1), then it is opened in unfolded state (2), simultaneously immediately
By continuously stirring, granule sludge is made to shed into reaction tank (12)；
Then influent ammonia nitrogen is increased into 850mg/L by 200mg/L, increases gradient 50mg/L, does not such as increase influent ammonia nitrogen by waterpower
Residence time was foreshortened to 6 hours by 9 hours, reduced gradient 1 hour, is completed denitrogenation and is strengthened.
Description of the drawings
Fig. 1 is apparatus of the present invention schematic diagram.
Fig. 2 is the filler assembly schematic diagram of the present invention.
Fig. 3 is the filler assembly stereogram of the present invention.
Fig. 4 is the inflow and outflow ammonia nitrogen variation diagram of the present invention.
Fig. 5 is the water inlet total nitrogen load and elimination capacity schematic diagram of the present invention.
Specific implementation mode
Particular content is as follows：1, continuous flow short distance nitration anaerobic ammonia oxidation reactor is constituted：There are intake pool (11), reaction tank
(12), sedimentation basin (13), filler assembly composition.2, filler assembly is constituted：Biologic packing material includes the filler of two kinds of materials, one is
Central filler filler polyurethane filler (5), another kind are the flexible support (4) of structured packing.The wherein material of flexible support (4)
For high density polyethylene (HDPE) (HDPE).Filler assembly is linked together by the filler of two kinds of materials by steel wire rope (6), steel wire rope
(6) flexible support (4), polyurethane filler (5) are sequentially passed through, polyurethane filler (5) is filled in scalable packing belt (4) shape
At cell compartment in.
There are two types of existing forms for filler assembly provided by the invention：One kind is compressive state (1), and one kind is unfolded state
(2).When filler assembly is in compressive state, long (b) is 50-300cm, and high (a) is 5-20cm, and wide (c) is 2-5cm.It is wherein every
The size of a polyurethane filler (5) is 1-30cm3.When filler assembly is in unfolded state, long (B) is 35-250cm, high
(A) it is 25-100cm, wherein the size of each cell compartment is in diameter 2-4cm.
When biologic packing material provided by the invention needs to fold, the draw ring (8) above middle wirerope (6) need to be only tensed, it will
Unfolded state (2) contracts from bottom to top is stacked as compressive state (1), is tied up by middle wirerope (6) winding, and draw ring is fixed,
Compressive state is maintained, in order to avoid because of elastic reaction, causes to be unfolded.
In the present invention material of flexible support (4) be high density polyethylene (HDPE) (HDPE), wearability, toughness and cold resistance compared with
Good, chemical stability is good, does not dissolve in any organic solvent, and corrosion resistance is stronger and non-toxic and tasteless.
Biologic packing material length (b) provided by the invention is 50-300cm, and high (a) is 5-20cm, and wide (c) is 2-5cm, and size is more
Sample can be completed to splice.By the place of required connection when splicing, fixed in a manner of nut in junction (7).
3, the application method of filler assembly：
The installation of filler assembly：One end with draw ring (8) is upper end when installation, by the junction (7) of upper end according to upper
The mode of stating is fixed on the crossbeam on reaction tank.Draw ring (8) can be hung on crossbeam；The lower end junction (7) of biologic packing material according to
Aforesaid way is fixed on the bottom of reaction tank.
4, the startup of continuous flow short distance nitration anaerobic ammonia oxidation reactor is strengthened with operation：Filler assembly is installed and is fixed
Afterwards, inoculation short distance nitration anaerobic ammonium oxidation sludge makes its concentration in 4500mg/L.The raw water of ammonia nitrogen concentration 200mg/L is by intake pump
(14) enter reaction tank (12), hydraulic detention time is 6-9 hours, and the bottom of reaction tank (12) is laid with micro-pore aeration pipeline
(19), which is connected with aerating system (17), carries out low-oxygen aeration, biochemical due to being the mixing of biomembrane and floc sludge
Pond (12) mixed liquor DO is in 0.1-0.5mg/L, and when biofilm thickness is more than 1mm, inside has 600 microns of space to be in anaerobism
Environment, while the nitrous and remaining ammonia oxygen and biomembrane of AOB generations are in direct contact in suspended sludge, in anaerobism space by anaerobism
Ammoxidation is reduced to nitrogen, completes denitrogenation.Muddy water mixed solution subsequently enters sedimentation basin (13) and completes mud-water separation.Reactor is equipped with
Sludge recirculation system, excess sludge enter the front end of reaction tank (12), reflux ratio 100% by return sludge pump (16).
By observing filler biological film thickness, using 0.5mm as standard；Total nitrogen elimination capacity, with 0.5kg N/ (m3·d)
For standard, judge to start successfully.
In operational process, the biofilm development on new packing component is very fast, raw when filler assembly biomembrane reaches maturation
Object film thickness is 0.5-1mm, and biomembrane sludge concentration can reach 7000-20000mg/L, and filler assembly will appear greatly at this time
Measure particle aggregate.
Under the action of continuously stirring, there will be the particle for accounting for suspended sludge 14%-21% to shed into reaction tank.At this point,
Illustrate that the filler assembly useful space is saturated, the microorganism within 600 microns of biomembrane is not carrying out denitrification.Even if biomembrane
Increase can not efficient denitrification, strengthened denitrification need to be started.
The present invention is based on filler assembly enhanced biological nitrogen removals.Draw ring (8) need to only be tightened, filler assembly is allowed to be in compressive state
(1), it is in unfolded state (2) then by it to unclamp immediately.Then by continuously stirring, Granular sludge enters reaction tank (12).It is raw
Changing pond (12) activated sludge will be made of biomembrane, granule sludge, floc sludge.
At this point, suspended sludge concentration 4500-5500mg/L, biomembrane sludge concentration 3000-7500mg/L.Biomembrane,
Grain sludge, the presence of floc sludge and a small amount of the falling off of biomembrane increase the mass-transfer efficiency of filler assembly, and simple biomembrane is anti-
Answer pond nitric efficiency 2-3 times.Then influent ammonia nitrogen is increased into 850mg/L by 200mg/L, increases gradient 50mg/L, does not increase such as
Add influent ammonia nitrogen also can to foreshorten to hydraulic detention time 6 hours by 9 hours, reduce gradient 1 hour, completes denitrogenation and strengthen, with
The short distance nitration anaerobic ammonia oxidation reactor after strengthening is continued to run with afterwards.
Inflow and outflow ammonia nitrogen variation such as Fig. 4 of the present invention
Present invention water inlet total nitrogen load and elimination capacity such as Fig. 5：
Beneficial effects of the present invention are：1, short distance nitration Anammox capable of fast starting, and obtain efficient denitrogenation effect
Fruit.
2, filler assembly used in the present invention, can be not only used for short distance nitration Anammox, is also fitted in other systems
With.And filler assembly is easy for installation, utilizes Fast Construction and startup.Draw ring need to be only tensed when inoculation, is folded into rectangular-shape, kept away
Exempt to be inoculated with that moisture content is excessively high, and weight is excessive, can efficiently be inoculated with high quality activated sludge, and subsequent transport is extremely convenient.
In particular for the slow-growing microorganism such as anaerobic ammonia oxidizing bacteria, long-distance sand transport may be implemented, reduce commissioning test expense,
Shorten and starts the time.
To sum up, the present invention solves the problems, such as that ammonia oxidation bacteria, anaerobic ammonia oxidizing bacteria difficulty are coordinated, and realizes the de- of efficient stable
Nitrogen provides a kind of feasible program for sewage water denitrification.
Claims (2)
1. a kind of method for strengthening short distance nitration Anammox denitrogenation based on filler assembly, it is characterised in that：The dress applied
It sets including intake pool (11), reaction tank (12), sedimentation basin (13) and filler assembly；
Raw water enters reaction tank (12) by intake pump (14), and the bottom of reaction tank (12) is equipped with micro-pore aeration pipeline (19), the pipe
Road is connected with aerating system (17), carries out low-oxygen aeration, DO 0.1-0.5mg/L, and simultaneous reactions pond is equipped with blender (15), even
Continuous stirring, hydraulic detention time 6-9h, it is reacted after muddy water mixed solution enter sedimentation basin (13) and complete mud-water separation, supernatant by
Outside water outlet (21) discharge system, excess sludge is pumped into the front end of reaction tank by reflux pump (16), completes biological denitrificaion；Reaction tank
(12) fixed biofilm activated sludge reactor is formed by suspended sludge and filler assembly, suspended sludge is short distance nitration anaerobism ammonia
Oxidized sludge；
Filler assembly includes polyurethane filler (5), flexible support (4) and steel wire rope (6), the filler assembly have compressive state and
Two kinds of forms of unfolded state, compressive state (1) length=50-300cm, height=5-20cm, wide=2-5cm, unfolded state (2) length=
35-250cm, height=25-100cm, wide=2-5cm, unfolded state have 700-50000cm2Surface area；700-50000cm2Table
Area can withhold biomembrane sludge concentration and reach 7000-20000mg/L；It is horizontal that stainless steel I-shaped is equipped with more than reaction tank (12) liquid level
Beam (18), for fixing filler assembly top junction, reaction tank (12) bottom is equipped with I-beam (22), for fixing filler
Component bottom junction；The polyurethane filler (5) is fixed on by steel wire rope (6) sliding in telescopic flexible holder (4).
2. according to the method described in claim 1, it is characterized in that, the application method and short distance nitration anaerobism ammonia oxygen of filler assembly
The operation reserve of change：
1), filler assembly is unfolded:Draw ring (8) are loosened, the fixation steel wire rope being wrapped on compressive state (1) biologic packing material is made
(6) it unlocks, biologic packing material by gravity at unfolded state (2), complete by biologic packing material expansion；
2), the fixed installation of filler assembly：One end with draw ring (8) is upper end, by the junction of upper end) consolidated in a manner of nut
Due to the crossbeam (18) of reaction tank upper end；Draw ring (8) is hung on crossbeam, and reaction tank bottom is fixed in the lower end junction of biologic packing material
The crossbeam (22) in portion；
3), the startup and operation of fixed biofilm activated sludge process short distance nitration Anammox：Flco short distance nitration is taken to detest
The sludge input of anaerobic ammonium oxidation has been fixed in the reaction tank (12) of filler assembly, sludge concentration 3000-4500mg/L, continuously not
Occasional agitation (15), aerating system (17) continuously open, DO between 0.1-0.5mg/L, the raw water of ammonia nitrogen concentration 200mg/L by
Intake pump (14) enters reaction tank (12), and hydraulic detention time is 6-9 hours, and muddy water mixed solution enters precipitation after biochemical reaction
Mud-water separation is completed in pond (13), supernatant by water outlet (21) discharge system outside, excess sludge is by reflux pump (16) by 100%
Reflux ratio is pumped into the front end of reaction tank (12), and when filler assembly biomembrane reaches maturation, biofilm thickness is in 0.5-1mm, biology
Film sludge concentration reaches 7000-20000mg/L；
4), filler assembly strengthens short distance nitration Anammox：Filler assembly compressive state (1), unfolded state (2) can be mutual
Change form；For filler assembly biofilm thickness after 0.5-1mm, polyurethane filler (5) surface can form granule sludge, at this time only
Draw ring (8) need to be tightened, allow filler assembly to be in compressive state (1), then it is in unfolded state (2) that it is opened immediately, while by
It continuously stirs, granule sludge is made to shed into reaction tank (12)；
Then influent ammonia nitrogen is increased into 850mg/L by 200mg/L, increases gradient 50mg/L, does not such as increase influent ammonia nitrogen by waterpower
Residence time was foreshortened to 6 hours by 9 hours, reduced gradient 1 hour, is completed denitrogenation and is strengthened.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363805.0A CN108585198B (en) | 2018-04-22 | 2018-04-22 | Method for reinforcing shortcut nitrification anaerobic ammonia oxidation denitrification based on filler component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363805.0A CN108585198B (en) | 2018-04-22 | 2018-04-22 | Method for reinforcing shortcut nitrification anaerobic ammonia oxidation denitrification based on filler component |
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| CN108585198A true CN108585198A (en) | 2018-09-28 |
| CN108585198B CN108585198B (en) | 2021-07-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368792A (en) * | 2018-12-06 | 2019-02-22 | 北京工业大学 | The method and apparatus of sludge dual reflux AOA short distance nitration coupling Anammox and endogenous denitrification Treating Municipal Sewage |
| CN110078212A (en) * | 2019-04-30 | 2019-08-02 | 北京城市排水集团有限责任公司 | A kind of device and its application method for realizing continuous flow municipal sewage Anammox denitrogenation |
| CN111115818A (en) * | 2020-01-19 | 2020-05-08 | 李庆辉 | Synchronous nitrification and denitrification MBBR sewage treatment equipment and method |
| CN111115819A (en) * | 2020-01-19 | 2020-05-08 | 李庆辉 | Synchronous nitrification and denitrification biological filter |
| CN114031177A (en) * | 2021-12-22 | 2022-02-11 | 北京城市排水集团有限责任公司 | Device for rapidly culturing aerobic granular sludge and operation method |
| CN114162962A (en) * | 2021-11-04 | 2022-03-11 | 凌志环保股份有限公司 | Biological bed with spring steel wire net frame combined packing |
| CN114409071A (en) * | 2022-02-10 | 2022-04-29 | 北京交通大学 | Loading and culturing device and culturing method for ammonia oxidation and anaerobic ammonia oxidation compound bacteria and sewage treatment method |
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| CN103508562A (en) * | 2013-09-29 | 2014-01-15 | 浙江大学 | Integrated swimming self-circulation denitrification reactor |
| CN203486966U (en) * | 2013-10-11 | 2014-03-19 | 北京北排水务设计研究院有限公司 | Autotrophic nitrogen removal integrated device for polymorphous microbial aggregates |
| CN103663725A (en) * | 2013-12-05 | 2014-03-26 | 北京交通大学 | Continuous flow biological denitrification method based on granular sludge, and apparatus |
| CN206494764U (en) * | 2017-01-17 | 2017-09-15 | 上海中耀环保实业有限公司 | A kind of laminated piece extension type hanging filler distribution apparatus for sewage disposal |
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| CN1385379A (en) * | 2001-05-10 | 2002-12-18 | 同济大学 | Laminated piece extension type water treatment filler |
| CN103508562A (en) * | 2013-09-29 | 2014-01-15 | 浙江大学 | Integrated swimming self-circulation denitrification reactor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368792A (en) * | 2018-12-06 | 2019-02-22 | 北京工业大学 | The method and apparatus of sludge dual reflux AOA short distance nitration coupling Anammox and endogenous denitrification Treating Municipal Sewage |
| CN109368792B (en) * | 2018-12-06 | 2021-08-13 | 北京工业大学 | Method and device for treating municipal sewage by sludge double-reflux AOA short-range nitrification coupled anaerobic ammonia oxidation and endogenous denitrification |
| CN110078212A (en) * | 2019-04-30 | 2019-08-02 | 北京城市排水集团有限责任公司 | A kind of device and its application method for realizing continuous flow municipal sewage Anammox denitrogenation |
| CN111115818A (en) * | 2020-01-19 | 2020-05-08 | 李庆辉 | Synchronous nitrification and denitrification MBBR sewage treatment equipment and method |
| CN111115819A (en) * | 2020-01-19 | 2020-05-08 | 李庆辉 | Synchronous nitrification and denitrification biological filter |
| CN114162962A (en) * | 2021-11-04 | 2022-03-11 | 凌志环保股份有限公司 | Biological bed with spring steel wire net frame combined packing |
| CN114162962B (en) * | 2021-11-04 | 2023-05-23 | 凌志环保股份有限公司 | Biological bed with spring steel wire net rack combined packing |
| CN114031177A (en) * | 2021-12-22 | 2022-02-11 | 北京城市排水集团有限责任公司 | Device for rapidly culturing aerobic granular sludge and operation method |
| CN114409071A (en) * | 2022-02-10 | 2022-04-29 | 北京交通大学 | Loading and culturing device and culturing method for ammonia oxidation and anaerobic ammonia oxidation compound bacteria and sewage treatment method |
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|---|---|
| CN108585198B (en) | 2021-07-16 |
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