CN108862588A - Continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR technique - Google Patents
Continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR technique 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
- C02F3/308—Biological phosphorus removal
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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
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Abstract
Continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR technique belongs to field of biological sewage treatment, and device includes raw water water tank, integral anaerobic ammoxidation denitrification dephosphorizing reactor, regulating tank, continuous flow short distance nitration reactor, goes out water tank；Municipal sewage respectively enters integral anaerobic ammoxidation denitrification dephosphorizing reactor and short distance nitration reactor.In integral anaerobic ammoxidation denitrification dephosphorizing reactor, polyP bacteria makes full use of the organic carbon source anaerobic phosphorus release in raw water.In short distance nitration reactor, ammonia oxidation bacteria is by the NH in raw water4 +- N is changed into NO2 ‑- N, the water outlet of continuous flow short distance nitration reactor enter integral anaerobic ammoxidation denitrification dephosphorizing reactor, NO after intermediate water tank regulating pondage2 ‑- N under the action of anaerobic ammonia oxidizing bacteria with NH4 +- N reaction, generates N2With a small amount of NO3 ‑- N realizes effectively removing for nitrogen, and denitrification phosphorus-collecting is with NO3 ‑- N inhales phosphorus as electron acceptor.This method realizes the denitrogenation dephosphorizing of sewage on the basis of realizing that energy conservation, carbon source make full use of.
Description
Technical field
The present invention relates to technical field of biological sewage treatment, and in particular to is suitable for existing sewage treatment plant's upgrading
Continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR technique and method.
Background technique
Water is substance for the survival of mankind, is life in the presence of the necessary condition with economic development.But in recent years, water provides
Source environmental quality constantly declines, and water environment is continuous worsening, and Chinese surface water resources is seriously polluted, and groundwater resources are not allowed to find pleasure in yet
It sees.Comprehensively consider Chinese surface water quality status, meets《Environmental Quality Standard of Surface Water》I, II class standard only account for 32.2%
(section statistics), meet Group III standard accounts for 28.9%, belongs to the war 38.9% of IV, V class standard.In addition to this, surface water
The problem of eutrophication, also becomes increasingly conspicuous.The denitrification dephosphorization technique for developing high-efficiency low energy consumption as a result, is particularly important.
Municipal wastewater treatment plant mostly uses continuous flow process, and China has the sewage plant of more than half using A at present2/ O synchronizes de-
Nitrogen dephosphorization process.But it is more inclined than universal in municipal sewage C/N since there is the competitions of the carbon source of PAO and denitrification process for this technique
In the case where low, the N of water outlet is difficult to up to standard, and needs to add a large amount of organic carbon sources in the process, so that operation cost increases.
For the property of the low C/N ratio of sewage, either short distance nitration, Anammox or denitrification dephosphorization can be very
Good optimization utilization of carbon source.Realize that Anammox is integrated with denitrification dephosphorization in a SBBR reactor, continuous
Enriching ammonia oxidation bacterium (AOB) provides nitrous for SBBR reactor on the basis of stream AOA.This technique can be in existing sewage plant
Upgrading is carried out on the basis of continuous flow, and three kinds of biologic treating techniques are combined, the effect of function bacterium is given full play to, makes to be discharged
Stabilization meets GB18978-2002 level-one A standard, has great engineering significance.
Summary of the invention
It is enriched with the purpose of the present invention is to provide a kind of suitable for utilizing in reactor for sewage treatment plant's upgrading
The synchronous denitrogen dephosphorus technology of AOB, DPAO and ANAMMOX, realize municipal sewage efficiently, the denitrogenation dephosphorizing of low energy consumption.
The technical proposal of the invention is realized in this way：
For municipal sewage raw water by the first intake pump 1.1, the second intake pump 4.1 respectively enters the reaction of short distance nitration continuous flow
Device and Anammox denitrification dephosphorization integration SBBR reactor, continuous flow reactor are divided into three sections, respectively anaerobism section,
Aerobic section and anoxic section, each area's ratio are VAnaerobism：VIt is aerobic：VAnoxic=1:1:1, according to the flowing hole that is staggered above and below water (flow) direction
Each cell compartment is connected, water outlet enters secondary settling tank 2, and the sludge of secondary settling tank is back to anoxic section by sludge reflux pump 2.1, and two is heavy
The water outlet in pond enters intermediate water tank 3, then enters SBBR reactor by the second water inlet 4.7 by third intake pump 4.2, is
Anammox reaction provides nitrite nitrogen, and water outlet enters discharge casing 5.
1 is equipped with the first blender 1.2, the second blender 1.3, the first stirring in the short distance nitration continuous flow reactor 1
Paddle 1.4, the second agitating paddle 1.5, aeration pump 1.6, aeration head 1.7.
The integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is built-in with third blender 4.3, and third is stirred
Mix paddle 4.4, DO/pH probe 4.6, host 4.5, mud discharging mouth 4.8, discharge outlet 4.10.
The process flow of sewage in this device is：
Municipal sewage passes through intake pump 1.1 and 4.1 respectively and respectively enters short distance nitration continuous flow reactor 1 and anaerobism ammonia
Aoxidize denitrification dephosphorization integration SBBR reactor 4, the NH in continuous flow short distance nitration reactor 4, in raw water4 +- N is in ammonia
NO is oxidized under the action of oxidizing bacteria AOB2 -- N, nitrification liquid are back to anoxic section by aerobic section III, and it is heavy that water outlet enters two
Pond 2, sludge are back to anaerobism section by sludge reflux pump 2.1, and the supernatant of secondary settling tank 2 enters intermediate water tank 3, in one
Change in Anammox denitrification dephosphorization SBBR reactor 4, polyP bacteria is closed using the organic carbon source anaerobic phosphorus release in raw water
It is stored in vivo at internal carbon source；Intake pump 4.2 is opened, the short distance nitration water outlet of continuous flow short distance nitration reactor 1 is pumped into one
In body Anammox denitrification dephosphorization SBBR reactor 4, one side anaerobic ammonia oxidizing bacteria is acted on by Anammox
By the NH in raw water4 +NO in-N and the water outlet of short distance nitration reactor 12 -- N is converted into N2With a small amount of NO3 -- N is on the other hand anti-
Nitrification polyP bacteria utilizes the internal carbon source stored in vivo, and with the NO in the water outlet of short distance nitration reactor 13 -- N and Anammox
The NO that process generates3 -- N is electron acceptor, carries out denitrification dephosphorization, and water outlet is discharged by discharge outlet 4.10.
The present invention also provides at a kind of continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR
Method of the low C/N than municipal sewage is managed, specific starting and operating procedure are as follows
1) starting of system
Continuous flow short distance nitration reactor 1 is inoculated with short distance nitration sludge, makes 2.5~3g/L of reactor sludge concentration.
Denitrification dephosphorization sludge is added to integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4, makes reactor
Sludge concentration reaches 2.5~3.3g/L, and Anammox sponge filler is added to integral anaerobic ammoxidation denitrification dephosphorization
In dephosphorization SBBR reactor 4, the volume of Anammox sponge filler in reactor is made to account for integrated reactor dischargeable capacity
3/8~5/8.
2) operating procedure when running
Municipal sewage is added to water tank in situ, it is short that municipal sewage is pumped into continuous flow by starting intake pump 1.1 and 4.1 respectively
Journey nitrator 1 and integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4.Continuous flow short distance nitration reactor 1 is transported
Controlled when row oxygen section dissolved oxygen be 2~3mg/L, hydraulic detention time be 2~3h, return sludge ratio 80%, sludge age 9~
10d。
When integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is run, anaerobic ammonia oxidizing bacteria is mainly filled out in sponge
Apposition growth on material, Denitrifying Phosphate Accumulating Organisms are mainly in floc sludge shape suspension growth, the stirring of each cycle anaerobism in reactor
The water outlet of continuous flow short distance nitration reactor 1 is passed through intake pump 4.2 in starting intake pump 4.2 by 120min-150min
Between water tank 3 be pumped into integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4, and anoxia stirring 120min-150min sinks
Shallow lake draining, draining are discharged than being 40%~60% and enter water tank 5.
When integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is run, by adjusting the operation of intake pump 4.2
Time and make the NO in integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 42 --N：NH4 +- N mass concentration ratio is 1.0
~1.5, when the ratio is less than 1, increase the runing time of intake pump 4.2, when ratio is greater than 1.5, reduces intake pump 4.2
Runing time.
It needs to carry out at each period anoxic end when integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is run
Spoil disposal keeps sludge concentration in reactor to stablize in 2.7~3.0mg/L.
The low C/ in continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR processing city of the invention
N has the following advantages that than the technique of sanitary sewage with method：
1) it is transformed on the basis of continuous flow AOA, suitable for the upgrading of sewage treatment plant at this stage, is saving
About improvement expenses, save carbon source on the basis of can make water outlet reach GB18978-2002 level-one A standard, have biggish engineering
Meaning.
2) dirty by adding Anammox biomembrane and denitrification dephosphorization activity respectively in a SBBR reactor
Mud can be created to anaerobic ammonia oxidizing bacteria and the advantageous microenvironment of Denitrifying Phosphate Accumulating Organisms, and realize that two kinds of bacteriums coexist and its de-
Synergistic effect in terms of nitrogen dephosphorization to can reach the denitrogenation dephosphorizing of sewage, and can solve to exist during traditional denitrogenation dephosphorizing
Sludge age etc. contradiction.
3) organic matter in raw water is used to the process of denitrification dephosphorization and short distance nitration, and the nitrogen in raw water mainly passes through
Anammox and short distance nitration removal, have reached energy-efficient target compared to traditional handicraft.
In conclusion continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization provided by the invention
SBBR handles technique of the low C/N than municipal sewage, and the dephosphorization of Anammox coupling denitrification and short distance nitration technology are mutually tied
It closes, solves the sludge age contradiction in traditional denitrification dephosphorization technique, and there is simple process, energy-efficient advantage.
Detailed description of the invention
Fig. 1 is continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR process structure of the present invention
Schematic diagram.
First intake pump 1.1, the second intake pump 4.1 in figure, the first blender 1.2, the second blender 1.3, third stirring
Device 4.3, the first agitating paddle 1.4, the second agitating paddle 1.5, third agitating paddle 4.4, aeration pump 1.6, aeration head 1.7, sludge reflux
Pump 2.1, secondary settling tank 2, intermediate water tank 3, pH/DO probe 4.6, pH/DO instrument 4.5, the first water inlet 4.9, the second water inlet
4.7, mud discharging mouth 4.8, discharge outlet 4.10, draining bucket 5.
Specific embodiment
Following further describes the present invention with reference to the drawings：As shown in Figure 1, continuous flow short distance nitration one in parallel
Change Anammox denitrification dephosphorization and handle technique of the low C/N than municipal sewage, it is characterised in that includes：First intake pump
1.1, the second intake pump 4.1, the first blender 1.2, the second blender 1.3, third blender 4.3, the first agitating paddle 1.4,
Two agitating paddles 1.5, third agitating paddle 4.4, aeration pump 1.6, aeration head 1.7, sludge reflux pump 2.1, secondary settling tank 2, intermediate water
Case 3, pH/DO probe 4.6, pH/DO instrument 4.5, the first water inlet 4.9, the second water inlet 4.7, mud discharging mouth 4.8, discharge outlet
4.10, draining bucket 5 is constituted.Wherein municipal sewage raw water respectively enters short distance by the first intake pump 1.1 and the second intake pump 4.1
Nitrification continuous flow reactor and Anammox denitrification dephosphorization integration SBBR reactor, continuous flow reactor are divided into three sections,
Respectively anaerobism section, aerobic section and anoxic section, each area's ratio are VAnaerobism：VIt is aerobic：VAnoxic=1:1:1, it is handed over up and down according to water (flow) direction
Mistake setting flowing hole connects each cell compartment, and water outlet enters secondary settling tank 2, and the sludge of secondary settling tank is flowed back by sludge reflux pump 2.1
To anoxic section, the water outlet of secondary settling tank enters intermediate water tank 3, then enters SBBR by water inlet 4.7 by third intake pump and reacts
Device provides nitrite nitrogen for Anammox reaction, and water outlet enters discharge casing 5.
1 is equipped with the first blender 1.2, the second blender 1.3, the first stirring in the short distance nitration continuous flow reactor
Paddle 1.4, the second agitating paddle 1.5, aeration pump 1.6, aeration head 1.7.
The integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is built-in with third blender 4.3, and third is stirred
Mix paddle 4.4, DO/pH probe 4.6, host 4.5, mud discharging mouth 4.8, discharge outlet 4.10.
During test, specific test water is derived from Beijing University of Technology's dependents' district sanitary sewage, and specific water quality is as follows：
COD concentration is 180~310mg/L, NH4 +- N concentration is 35~71mg/L, NO2 -- N concentration<1mg/L,NO3 -- N concentration is 0.1
~1.4mg/L, PO4 3-- P concentration is 1.9~6.5mg/L, and pH value is 7.3~7.6. pilot system as shown in Figure 1, each reactor
It is all made of organic glass production, integrated 4 dischargeable capacity of anaerobic ammonium oxidation denitrification dephosphorization SBBR reactor is 10L, continuous flow
Short distance nitration reactor 1 is made of organic glass, and length is respectively 50cm, 25cm, 30cm, and total dischargeable capacity is 30L,
It is divided into three sections of totally five lattice, respectively anaerobism section, anoxic section and aerobic section along water (flow) direction, each area's ratio is VAnaerobism：VIt is aerobic：VAnoxic
=1:1:1, and each cell compartment of flowing hole connection that is staggered up and down according to water (flow) direction.Aerobic zone is equipped with gas flowmeter control
Aeration quantity processed, anaerobic zone and anoxic zone, which are equipped with agitating paddle, is thoroughly mixed muddy water.
Carrying out practically operation is as follows：
1) starting of system
Continuous flow short distance nitration reactor 1 is inoculated with short distance nitration sludge, makes 2.7~3.0g/L of reactor sludge concentration.
Denitrification dephosphorization sludge is added to integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4, makes reactor
Sludge concentration reaches 3g/L, and Anammox sponge filler is added to integral anaerobic ammoxidation denitrification dephosphorization dephosphorization
In SBBR reactor 4, the volume of Anammox sponge filler in reactor is made to account for the 3/ of integrated reactor dischargeable capacity
8。
2) operating procedure when running
Municipal sewage is added to water tank in situ, starts the first intake pump 1.1 and the second intake pump 4.1 for municipal sewage point
It Chou Ru not continuous flow short distance nitration reactor 1 and integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4.Continuous flow is short
Journey nitrator 1 run when control flow of inlet water be 5L/h, aerobic section dissolved oxygen be 3mg/L, hydraulic detention time 6h,
Return sludge ratio 80%, sludge age 9d.
When integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is run, anaerobic ammonia oxidizing bacteria is mainly filled out in sponge
Apposition growth on material, Denitrifying Phosphate Accumulating Organisms are mainly in floc sludge shape suspension growth, the stirring of each cycle anaerobism in reactor
The water outlet of continuous flow short distance nitration reactor 1 is pumped into integration by intermediate water tank 3 in starting third intake pump 4.2 by 120min
Anammox denitrification dephosphorization SBBR reactor 4, and anoxia stirring 120min, sedimentation and drawing, draining is than being 40%, water outlet
Into water tank 5.
When integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 4 is run, by adjusting third intake pump 4.2
Runing time and make the NO in integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor 42 --N：NH4 +- N mass concentration ratio
It is 1.0~1.5, when the ratio is less than 1, increases the runing time of third intake pump 4.2, when ratio is greater than 1.5, reduces
The runing time of third intake pump 4.2.
The experimental results showed that：After stable, it is 42~56mg/ that continuous flow short distance nitration reactor 1, which is discharged COD concentration,
L, NH4 +- N concentration<3mg/L,NO2 -- N is 18~23mg/L, NO3 --N<5mg/L；Integral anaerobic ammoxidation denitrification dephosphorization
It is 43~55mg/L, NH that SBBR reactor 4, which is discharged COD concentration,4 +- N concentration<5mg/L, NO2 -- N concentration<5mg/L,NO3 --N<
5mg/L,P<0.5mg/L。
Claims (2)
1. continuous flow short distance nitration parallel connection integral anaerobic ammoxidation denitrification dephosphorization SBBR technique, it is characterized in that municipal sewage is former
Water respectively enters short distance nitration continuous flow reactor and Anammox denitrification dephosphorization one by the first intake pump, the second intake pump
Body SBBR reactor, short distance nitration continuous flow reactor are divided into three sections, respectively anaerobism section, aerobic section and anoxic section, each area
Ratio is VAnaerobism：VIt is aerobic：VAnoxic=1:1:1, the flowing hole that is staggered up and down according to water (flow) direction connects each cell compartment, and water outlet enters
The sludge of secondary settling tank (2), secondary settling tank is back to anaerobism section by sludge reflux pump (2.1), and the water outlet of secondary settling tank enters intermediate water
Case (3) is then reacted by water inlet (4.7) into Anammox denitrification dephosphorization integration SBBR by third intake pump
Device provides nitrite nitrogen for Anammox reaction, and water outlet enters discharge casing (5)；
The short distance nitration continuous flow reactor (1) is built-in with the first blender (1.2), the second blender (1.3), the first stirring
Paddle (1.4), the second agitating paddle (1.5), aeration pump (1.6), aeration head (1.7)；
Third blender (4.3) built in the integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor (4), third agitating paddle
(4.4), DO/pH probe (4.6), host (4.5), mud discharging mouth (4.8), discharge outlet (4.10).
2. applying apparatus and method described in claim 1, which is characterized in that including the following contents：
1) starting of system
Short distance nitration continuous flow reactor (1) is inoculated with short distance nitration sludge, makes 2.5~3g/L of reactor sludge concentration；
Denitrification dephosphorization sludge is added to integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor (4), detests integration
Anaerobic ammonium oxidation denitrification dephosphorization SBBR reactor sludge concentration reaches 2.5~3.3g/L, and Anammox sponge filler is added
In to integral anaerobic ammoxidation denitrification dephosphorization dephosphorization SBBR reactor (4), make Anammox sponge filler in reactor
Volume account for the 3/8~5/8 of integral anaerobic ammoxidation denitrification dephosphorization SBBR dischargeable capacity；
2) operating procedure when running
Municipal sewage is added to water tank in situ, municipal sewage is pumped into short distance nitration continuous flow reactor by starting intake pump respectively
(1) and integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor (4)；Short distance nitration continuous flow reactor (1) runs time control
Aerobic section dissolved oxygen processed is 2~3mg/L, and hydraulic detention time is 2~3h, return sludge ratio 80%, 9~10d of sludge age；
When integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor (4) is run, anaerobic ammonia oxidizing bacteria is attached on sponge filler
Growth, Denitrifying Phosphate Accumulating Organisms in integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor in floc sludge shape suspend life
Long, each cycle anaerobism stirs 120min-150min, in starting intake pump (4.2) going out short distance nitration continuous flow reactor (1)
Water is pumped into integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor (4) by intermediate water tank (3), and anoxia stirring 120min-
150min, sedimentation and drawing, than being 40%~60%, water outlet enters water tank (5) for draining；
It needs to carry out spoil disposal at each period anoxic end when integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor is run, protect
Sludge concentration in integral anaerobic ammoxidation denitrification dephosphorization SBBR reactor is held to stablize in 2.7~3.0mg/L.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015818A (en) * | 2019-05-17 | 2019-07-16 | 北京工业大学 | Continuous flow dephosphorization nitrosation couples Anammox denitrogenation dephosphorizing SBR technique |
| CN110436627A (en) * | 2019-08-12 | 2019-11-12 | 欧基（上海）环保科技有限公司 | A kind of Anammox denitrification dephosphorization system and method |
| CN111087074A (en) * | 2020-01-14 | 2020-05-01 | 中国科学院生态环境研究中心 | Continuous flow anoxic/aerobic coupling anaerobic ammonia oxidation sewage treatment device and method |
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| CN107032488A (en) * | 2017-04-24 | 2017-08-11 | 北京工业大学 | A kind of method that municipal sewage short distance nitration is realized by sludge dual reflux AOA techniques |
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| CN104817177A (en) * | 2015-05-17 | 2015-08-05 | 北京工业大学 | Integrated anaerobic ammoxidation/denitrification/dephosphorization parallel short-range nitration low-carbon municipal sewage treatment device and method |
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| CN110015818A (en) * | 2019-05-17 | 2019-07-16 | 北京工业大学 | Continuous flow dephosphorization nitrosation couples Anammox denitrogenation dephosphorizing SBR technique |
| CN110015818B (en) * | 2019-05-17 | 2022-05-24 | 北京工业大学 | Continuous flow phosphorus removal nitrosation coupling anaerobic ammonia oxidation nitrogen and phosphorus removal SBR process |
| CN110436627A (en) * | 2019-08-12 | 2019-11-12 | 欧基（上海）环保科技有限公司 | A kind of Anammox denitrification dephosphorization system and method |
| CN110436627B (en) * | 2019-08-12 | 2022-06-24 | 欧基（上海）环保科技有限公司 | Anaerobic ammonia oxidation nitrogen and phosphorus removal system and method |
| CN111087074A (en) * | 2020-01-14 | 2020-05-01 | 中国科学院生态环境研究中心 | Continuous flow anoxic/aerobic coupling anaerobic ammonia oxidation sewage treatment device and method |
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Application publication date: 20181123 |