CN105859040B - A kind of municipal sewage denitrification and dephosphorization method and equipment - Google Patents
A kind of municipal sewage denitrification and dephosphorization method and equipment Download PDFInfo
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- CN105859040B CN105859040B CN201610327407.4A CN201610327407A CN105859040B CN 105859040 B CN105859040 B CN 105859040B CN 201610327407 A CN201610327407 A CN 201610327407A CN 105859040 B CN105859040 B CN 105859040B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- 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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- 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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Abstract
The invention discloses a kind of municipal sewage denitrification and dephosphorization method and equipment, municipal sewage is introduced into denitrification dephosphorizing reactor, according to being back to how much carry out anaerobic/anoxic denitrogenation dephosphorizings of amount of nitrogen oxides or aerobic/anaerobic dephosphorization in the phegma of denitrification dephosphorizing reactor from anaerobic ammonia oxidation reactor, the water outlet of denitrification dephosphorizing reactor is introduced into medium sediment pool again, carry out mud-water separation, partial sludge is back to denitrification dephosphorizing reactor, is arranged outside remaining sludge；Medium sediment pool water outlet is distributed through current divider, and a part, which is discharged, enters short distance nitration reactor progress short distance nitration, and another part water outlet enters anaerobic ammonia oxidation reactor progress autotrophy and denitrogenates；Water part, can be back to short distance nitration reactor or denitrification dephosphorizing reactor, further denitrogenation by monitoring anaerobic ammonia oxidation reactor effluent quality in real time.The sewage-treatment plant of the present invention efficiently, low energy consumption, low cost, treatment effect stablize, effluent quality is far superior to the requirement of country-level A standards.
Description
Technical field
The present invention relates to a kind of municipal sewage denitrification and dephosphorization method and equipment, belong to urban sewage treatment technology field.
Background technology
Water resource, energy shortage and quality of water environment are worsening, have become the bottleneck of socio-economic development, improve
Wastewater treatment rate and degree for the treatment of, the denitrogenation dephosphorizing efficiency for improving sewage treatment plant, the energy consumption of reduction sewage disposal have become and work as
Business is anxious.In traditional sewage disposal technology, denitrification process and dephosphorization process are in response matrix（Carbon source）With reaction compartment side
There is competition and contradiction in face, it is difficult to obtain good N, P removal effect simultaneously, generally requiring to expend a large amount of external energies can just obtain
Obtain relatively satisfactory effect.
In recent years, in order to solve the problems, such as traditional denitrogenation dephosphorizing process, as denitrogenation and dephosphorization microorganism are mutually only
The race problem of vertical problem, microorganism sludge age difference problem, carbon source, has developed some novel denitrification dephosphorization techniques, for solution
Certainly the contradiction between denitrogenation and dephosphorization provides opportunity.Wherein, denitrification dephosphorization and Anammox denitrogenation technology receive the country
The favor of outer scholar.Denitrification dephosphorization is with NOX- N is electron acceptor, it can be achieved that a carbon is dual-purpose, reaches the synchronous removal of C/N/P
Effect；Anammox denitrogenation technology is with NH4 +- N and NO2 -- N is completed under anoxic conditions respectively as electron donor and receptor
The removal of nitrogen, the process are not necessarily to additional carbon, are neutralized without exogenously added alkali, de- with traditional whole biological nitration-denitrification
Nitrogen technology is compared, and Anammox technology can save 62.5% oxygen-supplying amount and 50% alkali consumption, without consuming organic carbon, and is produced
Mud amount is only the 15% of traditional biological denitrification process.Therefore, Anammox technology from being found just by favor, both at home and abroad
Scholar has carried out a large amount of research to this new biological nitrogen removal technology, and main process has：
It is dirty that the Chinese patent of Publication No. CN 102557356A provides a kind of half short distance nitration/Anammox city
Denitrogenation of water dephosphorization process and method avoid the quick breeding of heterotroph, avoid to autotrophy by separating sludge by sludge age
Denitrogenation flora has an impact, and nitrification uses half section of short distance nitration, so that it is more easy to stably maintaining shortcut, ensures nitrification
Nitrosoation rate provides safeguard for system denitrogenation stability, then should be at the advanced nitrogen of sanitary sewage by Anammox technology
In reason, oxygen demand reduces by 60% than traditional denitrogenation mode, and is not necessarily to additional carbon, is not necessarily to neutralizer, realizes high-efficiency low energy consumption
Municipal sewage treatment.
The Chinese patent of Publication No. CN 101580329A discloses a kind of municipal sewage anaerobism organics removal and autotrophy
The device and method of biological denitrificaion, the device are equipped with raw water box, anaerobic reactor, dephosphorizing reactor, medium sediment pool, half short distance nitration
Reactor, secondary settling tank, intermediate pool, anaerobic ammonia oxidation reactor；Anaerobic reactor is the anaerobic organism filter for loading sponge filler
Pond；The 1st cell compartment of dephosphorizing reactor is anaerobic zone, remaining 4 cell compartment is aerobic zone；Half short distance nitration reactor is equipped with 1 and lacks
Oxygen area and 4 aerobic zones；Anaerobic ammonia oxidation reactor is equipped with column reactant and water bath sleeve.Utilize the method for the device：l）It will
The activated sludge obtained from sewage treatment plant is added to dephosphorizing reactor and short distance nitration reactor；2）Municipal sewage is pumped into first
Into anaerobic reactor；3）Anaerobic reactor water outlet enters dephosphorizing reactor；4）The water outlet of dephosphorizing reactor passes through medium sediment pool
Enter half short distance nitration reactor.The present invention is suitable for municipal sewage treatment, and structurally consummate, technique is advanced, efficient.
The Chinese patent of Publication No. CN 101531443A discloses a kind of coupling type sewage treatment process, with city dirt
Water is process object.The technique will be through aerobic/anaerobic（A/O）Part effluent recycling to anaerobic reactor（EGSB）In, same
When be inoculated with anaerobic grain sludge and aerobic activated sludge anaerobic reactor（EGSB）Middle realization Anammox, methanation with it is anti-
The coupling of nitration reaction, removes removal organic polluter and denitrogenation.The present invention solves existing A2There are carbon with dephosphorization for the denitrogenation of/O techniques
The contradiction and Anammox of source contention and pH value unbalance caused by anti-nitration reaction, process system strong shock resistance,
COD removals and the Nitrogen/Phosphorus Removal of stability and high efficiency can be obtained under conditions of rate of load condensate height, hydraulic detention time are short.
Above-mentioned process has been all made of the autotrophic denitrification technique of short distance nitration+Anammox, and default except carbon dephosphorization
System solves the contradiction that denitrogenation and dephosphorization compete carbon source with this.But above-mentioned process has two：1）By anaerobism
Ammonia oxidation process also contains one as end-o f-pipe -control reactor according to the stoichiometric relationship that Anammox reacts in water outlet
Quantitative nitrate, there are certain security risks；2）Using half short-cut nitrification technology, the NH of generation4 +- N and NO2 -- N ratios
It is unstable, and then subsequent Anammox reaction process is influenced, cause to occur containing NH in being discharged4 +- N or NO2 --N。
The present invention develops a kind of municipal sewage denitrification and dephosphorization method and equipment, first, using efficient accumulation NO2 -- N's is short
Journey nitrator introduces short distance nitration section and Anammox section multipoint water feeding mechanism, and it is anti-that reasonable distribution enters short distance nitration
The water inlet ratio for answering device and anaerobic ammonia oxidation reactor, to reach the autotrophic denitrification efficiency of efficient stable；Second is that by anaerobism ammonia oxygen
The denitrification dephosphorizing reactor that water is back to leading portion is dissolved, under the conditions of anaerobic/anoxic alternate run, utilizes the NO of reflux3 -With
NO2 -Denitrification process and dephosphorization process together as one are reached into simultaneous phosphorus and nitrogen removal purpose as electron acceptor.
Invention content
The purpose of the present invention is to provide a kind of municipal sewage denitrification and dephosphorization method and equipment.
The technical solution used in the present invention is：
A kind of municipal sewage denitrification and dephosphorization equipment, including by the sequentially connected denitrification dephosphorizing reactor of main line, in
Heavy pond, current divider, short distance nitration reactor and anaerobic ammonia oxidation reactor；Between the denitrification dephosphorizing reactor and medium sediment pool
Equipped with the mud return line that sludge in medium sediment pool can be imported to denitrification dephosphorizing reactor；The denitrification dephosphorizing reactor with detest
The water outlet of anaerobic ammonia oxidation reactor can be imported in the sewage time of denitrification dephosphorizing reactor by being equipped between anaerobic ammonium oxidation reactor
Flow tube；Anaerobic ammonia oxidation reactor can be imported by the water outlet of current divider by being equipped between the current divider and anaerobic ammonia oxidation reactor
Pipeline；Being equipped between the short distance nitration reactor and anaerobic ammonia oxidation reactor can be by the water outlet of anaerobic ammonia oxidation reactor
Import the sewage backflow pipe of short distance nitration reactor；The anaerobic ammonia oxidation reactor is equipped with water quality on-line determination instrument and flow
Controller, and the flow controller is connected with current divider.
Further, the denitrification dephosphorizing reactor is provided with water inlet pipe, mud return line, sewage backflow pipe, water outlet
Pipe, blow-down pipe, aeration facility and stirring facility.
Further, the denitrification dephosphorizing reactor is made of anaerobic zone and aerobic area, water inlet pipe and mud return line
Setting is arranged in anaerobic zone, sewage backflow pipe, outlet pipe, blow-down pipe, aeration facility and stirring facility in aerobic area.
Further, the medium sediment pool is provided with water inlet pipe, outlet pipe and mud return line.
Further, the short distance nitration reactor be provided with water inlet pipe, outlet pipe, mud return line, sewage backflow pipe,
Blow-down pipe, temperature controller, DO analyzers and aeration facility.
Further, the anaerobic ammonia oxidation reactor is provided with water inlet pipe, outlet pipe, blow-down pipe, backwash tube, temperature
Controller.
A kind of municipal sewage denitrification and dephosphorization method, includes the following steps：
1) denitrification dephosphorizing reactor：Municipal sewage（Sewage total amount is denoted as Q）Denitrification dephosphorizing reactor is initially entered,
In be enriched with a large amount of denitrifying phosphorus removing bacteria；The anaerobic zone of denitrification dephosphorizing reactor receives the returned sludge of medium sediment pool simultaneously,
The aerobic area of denitrification dephosphorizing reactor receives the phegma of Anammox unit, when the phegma of anaerobic ammonia oxidation reactor
Middle nitrogen oxides is more, when meeting the electron acceptor needed for denitrification dephosphorization, stops the aeration facility of aerobic area, while opening and stirring
Facility is mixed, denitrification dephosphorizing reactor is run under anaerobic/anoxic operating mode at this time, and denitrifying phosphorus removing bacteria is with the nitrogen oxygen in phegma
Compound is electron acceptor, is removed while realizing nitrogen, phosphorus；When nitrogen oxides is less in the phegma of anaerobic ammonia oxidation reactor,
When the electron acceptor being insufficient for needed for dephosphorization, stops stirring, opens aeration, the unit uses aerobic/anaerobic operating mode at this time
Operation, realizes the removal of phosphorus；
2) medium sediment pool：The water outlet of denitrification dephosphorizing reactor is introduced into medium sediment pool and carries out mud-water separation, the part of medium sediment pool
Sludge（Sludge quantity is denoted as r）It is back to the anaerobic zone of denitrification dephosphorizing reactor, is arranged outside remaining sludge；
3) current divider：The water outlet of medium sediment pool is introduced into current divider, two parts are classified as in current divider, first part goes out
Water（Sewage quantity is denoted as q1）Into short distance nitration reactor, second part water outlet（Sewage quantity is denoted as q2）It is anti-into Anammox
Device is answered, the nitrogen in being discharged to anaerobic ammonia oxidation reactor by the water quality on-line determination instrument on anaerobic ammonia oxidation reactor forms
It is monitored in real time with content, and result is exported to flow controller, adjusted and enter short distance nitration reactor and anaerobism ammonia oxygen
Change the sewage ratio of reactor；As NH in water outlet4 +When N content is higher, it is lowered into the sewage quantity of anaerobic ammonia oxidation reactor；
As NO in water outlet2 -When N content is higher, the sewage quantity into anaerobic ammonia oxidation reactor is improved；As NO in water outlet3 -N content compared with
Gao Shi improves the sewage quantity that anaerobic ammonia oxidation reactor is back to denitrification dephosphorizing reactor（Sewage quantity is denoted as R1）；
4) short distance nitration reactor：A large amount of ammonia oxidizing bacteria is enriched in short distance nitration reactor（AOB）, through current divider
The water inlet of introducing carries out high-efficiency short-range nitration herein, then will be enriched in NO2 -The water outlet of-N imports anaerobic ammonia oxidation reactor；
5) anaerobic ammonia oxidation reactor：The reactor uses carrier organism membrane reactor, is enriched on carrier and largely detests
Anaerobic ammonium oxidation bacterium；It will receive the water outlet of the part water outlet and short distance nitration reactor of current divider simultaneously, in Anammox
Autotrophy is carried out under the action of bacterium to denitrogenate；A water outlet part for anaerobic ammonia oxidation reactor is back to denitrification dephosphorizing reactor（It is dirty
Water is denoted as R1）, a part is back to short distance nitration reactor（Sewage quantity is denoted as R2）, arrange outside rest part.
Further, medium sediment pool is back to sludge quantity r=20%~50%Q of denitrification dephosphorizing reactor.
Further, the sewage quantity q of short distance nitration reactor is entered through current divider distribution1=50%~70%Q.
Further, the sewage quantity q of anaerobic ammonia oxidation reactor is entered through current divider distribution2=30%~50%Q.
Further, anaerobic ammonia oxidation reactor effluent recycling to denitrification dephosphorizing reactor sewage quantity R1=50%~
100%Q。
Further, anaerobic ammonia oxidation reactor effluent recycling to short distance nitration reactor sewage quantity R2=50%~100%
Q。
Further, at 25~35 DEG C, the DO of short distance nitration reactor is controlled 0.3 for the running temperature control of whole system
~1.0mg/L.
The beneficial effects of the invention are as follows：
1）Denitrification dephosphorizing reactor in the municipal sewage denitrification and dephosphorization equipment of the present invention is divided into anaerobic zone and and oxygen
Whether area can meet the needs of dephosphorization is to electron acceptor, to sentence according to nitrogen oxides in anaerobic ammonia oxidation reactor phegma
It is disconnected to use anoxic or aerobic condition, the efficient utilization to organic matter and guarantee phosphor-removing effect not only may be implemented, while may be used also
Advanced treating is carried out with the nitrogen oxides in being discharged to anaerobic ammonia oxidation reactor；
2）The short distance nitration reactor of the municipal sewage denitrification and dephosphorization equipment of the present invention only needs controlling reaction temperature and aeration
Amount is controlled by the shunting of medium sediment pool supernatant to reach sub- nitrogen accumulation to the greatest extent and is entered short distance nitration reactor and detested
Sewage ratio in anaerobic ammonium oxidation reactor is reacted to realize efficient autotrophic denitrification process with existing half short distance nitration
Device is compared, and the control condition of short distance nitration reactor and anaerobic ammonia oxidation reactor in the present invention is more easy and stablizes；
3）The present invention municipal sewage denitrification and dephosphorization equipment can to anaerobic ammonia oxidation reactor be discharged in nitrogen composition and
Content is monitored in real time, enters short distance nitration reactor and anaerobism according to the nitrogen content control medium sediment pool supernatant in water outlet
The ratio of ammonia oxidation reactor, and realize the flexible control of anaerobic ammonia oxidation reactor regurgitant volume, to obtain efficient pollution
Object removal effect.
Description of the drawings
Fig. 1 is the municipal sewage denitrification dephosphorization technique flow chart of the present invention.
Fig. 2 is the structural schematic diagram of the municipal sewage denitrification and dephosphorization equipment of the present invention.
Description of drawing identification：1, denitrification dephosphorizing reactor；11, water inlet pipe；12, it is aerated facility；13, facility is stirred；14、
Gas flowmeter；15, wind turbine；16, blow-down pipe；2, medium sediment pool；21, pipeline；22, mud return line；23, blow-down pipe；3, it shunts
Device；31, pipeline；32, pipeline；33, pipeline；34, flow controller；35, water quality on-line determination instrument；4, short distance nitration reactor；
41, temperature controller；42, DO analyzers；43, gas flowmeter；44, wind turbine；45, it is aerated facility；46, mud return line；47、
Blow-down pipe；5, anaerobic ammonia oxidation reactor；51, pipeline；52, backwash tube；53, temperature controller；54, blow-down pipe；55, it is discharged
Pipe；56, sewage backflow pipe；57, sewage backflow pipe.
Specific implementation mode
The present invention is made further explanation and description with reference to specific embodiments and the drawings.
Embodiment 1：Municipal sewage denitrification and dephosphorization equipment
As shown in Fig. 2, the municipal sewage denitrification and dephosphorization equipment of the present invention, including pass through the sequentially connected denitrification of main line
Dephosphorizing reactor 1, medium sediment pool 2, current divider 3, short distance nitration reactor 4 and anaerobic ammonia oxidation reactor 5；The denitrification dephosphorization
Reactor 1 is connect with medium sediment pool 2 by pipeline 21；The medium sediment pool 2 is connect with current divider 3 by pipeline 31；The current divider 3
It is connect by pipeline 32 with short distance nitration reactor 4；The short distance nitration reactor 4 passes through pipe with anaerobic ammonia oxidation reactor 5
Road 51 connects；Denitrification can be imported by sludge in medium sediment pool 2 by, which being equipped between the denitrification dephosphorizing reactor 1 and medium sediment pool 2, removes
The mud return line 22 of phosphorus reaction device 1；Being equipped between the denitrification dephosphorizing reactor 1 and anaerobic ammonia oxidation reactor 5 can incite somebody to action
The water outlet of anaerobic ammonia oxidation reactor 5 imports the sewage backflow pipe 57 of denitrification dephosphorizing reactor 1；The current divider 3 and anaerobism
The water outlet of current divider 3 can be imported the pipeline 33 of anaerobic ammonia oxidation reactor 5 by being equipped between ammonia oxidation reactor 5；The short distance
Short distance nitration can be imported by the water outlet of anaerobic ammonia oxidation reactor 5 by being equipped between nitrator 4 and anaerobic ammonia oxidation reactor 5
The sewage backflow pipe 56 of reactor 4；The anaerobic ammonia oxidation reactor 5 is equipped with water quality on-line determination instrument 35 and flow controller
34, and flow controller 34 is connected with current divider 3.
Preferably, the denitrification dephosphorizing reactor 1 uses suspension growth activated sludge tank type, and anaerobic zone is divided into pond
And aerobic area, water inlet pipe 11 and the setting of mud return line 22 are in anaerobic zone, sewage backflow pipe 57, aeration facility 12, stirring facility
13 and the setting of blow-down pipe 16 in aerobic area, aeration facility 12 is also associated with gas flowmeter 14 and wind turbine 15.
Preferably, the medium sediment pool 2 is provided with mud return line 22, and blow-down pipe 23 is provided on mud return line 22.
Preferably, the short distance nitration reactor 4 uses suspension growth activated sludge tank type, pond body to embed mud-water separation
Area is provided with temperature controller 41, DO analyzers 42, aeration setting 45, mud return line 46 and blow-down pipe 47 in reactor, exposes
Gas facility 45 is also associated with gas flowmeter 43 and wind turbine 44.
Preferably, the anaerobic ammonia oxidation reactor 5 uses biofilm reactor, is provided with backwash tube 52, temperature control
Instrument 53, blow-down pipe 54 and outlet pipe 55 processed.
The municipal sewage denitrification and dephosphorization equipment of the present invention is run in the following manner：By pretreated municipal sewage pass through into
Water pipe 11 imports denitrification dephosphorizing reactor 1, and denitrification dephosphorizing reactor 1 is made of anaerobic zone and aerobic area, and anaerobic zone passes through
Mud return line 22 receives the returned sludge in medium sediment pool 2, and aerobic area receives Anammox by sewage backflow pipe 57 and reacts
The phegma of device 5.When nitrogen oxides is more in the phegma of anaerobic ammonia oxidation reactor 5, can meet needed for denitrification dephosphorization
When electron acceptor, stop the aeration facility 12 of the aerobic area of denitrification dephosphorizing reactor 1, opens stirring facility 13, at this time anti-nitre
Change in dephosphorizing reactor 1 denitrifying phosphorus removing bacteria that is enriched with using the nitrogen oxides in phegma as electron acceptor, use at this time anaerobism/
Anoxic operating mode is run, and is removed while realizing nitrogen, phosphorus；When nitrogen oxides is less in the phegma of anaerobic ammonia oxidation reactor 5, no
When the electron acceptor being sufficient for needed for dephosphorization, stirring facility 13 is closed, aeration facility 12 is opened, uses aerobic/anaerobic at this time
Operating mode is run, and realizes the removal of phosphorus；Mixed liquor in denitrification dephosphorizing reactor 1 21 enters medium sediment pool 2 by the road, in medium sediment pool
Mud-water separation is carried out in 2, wherein sludge is partly refluxed to the anaerobic zone of denitrification dephosphorizing reactor 1 through mud return line 22, on
Clear liquid 31 enters current divider 3 by the road, is shunted through current divider 3, and a part of sewage enters short distance nitration reactor 4 by pipeline 32,
A part of sewage enters anaerobic ammonia oxidation reactor 5 by pipeline 33；The assignment of traffic ratio of pipeline 32 and pipeline 33 is by flow control
The NH for the anaerobic ammonia oxidation reactor 5 that device 34 processed is detected according to water quality on-line determination instrument 354 +N content determines；By the road 32 into
The sewage for entering short distance nitration reactor 4 carries out short distance nitration reaction herein, makes the NH in sewage4 +- N is converted into NO2 ˉ- N, short distance
Being equipped between aerobic zone and settling zone in nitrator 4 can be by the sludge reflux pipeline of settling zone sludge reflux to aerobic zone
46, sewage in short distance nitration reactor 4 51 enters anaerobic ammonia oxidation reactor 5 by the road, in anaerobic ammonia oxidation reactor 5
By the road 51 and pipeline 33 enter sewage obtain mixing and storage, the anaerobism ammonia oxygen being enriched in anaerobic ammonia oxidation reactor 5
Under the action of changing bacterium, the NH in water inlet4 +- N and NO2 ˉ- N is removed, while will produce a small amount of NO3 ˉ- N, Anammox are anti-
A water outlet part for device 5 is answered to be discharged through outlet pipe 55, another part is back to denitrification dephosphorizing reactor through sewage backflow pipe 57
1, electron acceptor is provided for denitrifying phosphorus removing bacteria, and remove the nitrate in phegma.
Embodiment 2：Municipal sewage denitrification and dephosphorization method
Guangzhou municipal wastewater treatment plant is taken to intake, main water quality index is as follows：COD：200~300mg/L, NH4 +-N：15~
30mg/L、TN：25~40mg/L, TP：2~4mg/L, SS：130~320mg/L, pH value 6.9~7.1.In conjunction with Fig. 1（City is dirty
Denitrogenation of water dephosphorization process flow chart）And Fig. 2（The structural schematic diagram of municipal sewage denitrification and dephosphorization equipment）Processing procedure is carried out such as
Under explanation.
1）Denitrification dephosphorization：Municipal sewage（Sewage total amount is denoted as Q）Anti- nitre is entered by water inlet pipe 11 after pretreatment of removing slag
Change dephosphorizing reactor 1, inoculates the activated sludge with denitrogenation dephosphorizing function of municipal wastewater treatment plant acquirement（SRT is 6d, and HRT is
5h）, sludge concentration MLSS is 3000~4000mg/L after inoculation, when nitrogen oxides in the phegma of anaerobic ammonia oxidation reactor 5
It is more, when meeting the electron acceptor needed for denitrification dephosphorization, stop the aeration facility of aerobic area, while opening stirring facility, this
When denitrification dephosphorizing reactor 1 run under anaerobic/anoxic operating mode, the denitrification dephosphorization being enriched in denitrification dephosphorizing reactor 1
Bacterium is removed using the nitrogen oxides in phegma as electron acceptor while realizing nitrogen, phosphorus；When anaerobic ammonia oxidation reactor 5
Nitrogen oxides is less in phegma, when the electron acceptor being insufficient for needed for dephosphorization, stops stirring, opens aeration, at this time should
Unit is run using aerobic/anaerobic operating mode, realizes the removal of phosphorus；
2）Medium sediment pool：Municipal sewage eliminates most organic matter and phosphorous object after denitrification dephosphorizing reactor 1
Matter, part nitrogen are also removed here；Then, mixed liquor enters the progress mud-water separation of medium sediment pool 2；The part of medium sediment pool 2 is dirty
Mud（Sludge quantity is denoted as r, r=20%~50%Q）It is back to the anaerobic zone of denitrification dephosphorizing reactor 1, is arranged outside remaining sludge；Supernatant
Liquid respectively enters short distance nitration reactor 4 and anaerobic ammonia oxidation reactor 5 by a certain percentage；
3）Current divider：The water outlet of medium sediment pool 2 is introduced into current divider 3, is classified as two parts in current divider 3, first
Separate water（Sewage quantity is denoted as q1, q1=50%~70%Q）Into short distance nitration reactor, second part water outlet（Sewage quantity is denoted as q2,
q2=30%~50%Q）Into anaerobic ammonia oxidation reactor, by the water quality on-line determination instrument on anaerobic ammonia oxidation reactor 5 to detesting
Nitrogen composition during anaerobic ammonium oxidation reactor 5 is discharged is monitored in real time with content, and result is exported and gives flow controller control
Sewage processed enters the ratio of short distance nitration reactor 4 and anaerobic ammonia oxidation reactor 5；As NH in water outlet4 +When N content is higher, drop
The low sewage quantity into anaerobic ammonia oxidation reactor 5, as NO in water outlet2 ˉWhen N content is higher, improve anti-into Anammox
Answer the sewage quantity of device 5；As NO in water outlet3 ˉWhen N content is higher, it is anti-that raising anaerobic ammonia oxidation reactor 5 is back to denitrification dephosphorization
Answer the sewage quantity of device 1（Sewage quantity is denoted as R1, R1=50%~100%Q）；
4）Short distance nitration：Short distance nitration reactor 4 uses continuous flow reaction unit, the nitrification that input municipal wastewater treatment plant obtains
Sludge, sludge concentration MLSS is 3000~6000mg/L after inoculation, and the overexposure pretreatment by 10 days, DO more than 1.5mg/L disappears
Consume miscellaneous bacteria in sludge, then controlled at 30 DEG C, DO 0.5mg/L, SRT 8d, HRT be 4h under conditions of realize short distance
The Effec-tive Function of nitrification；Short distance nitration unit is rich in NO2 ˉThe water outlet of-N and another part supernatant of medium sediment pool enter anaerobism ammonia
Oxidation reactor 5；Short distance nitration reactor 4 realizes continuous aeration in above-mentioned operation, by being aerated facility 45, is measured by DO
Instrument 42 monitors the DO variations in short distance nitration reactor 4 in real time, controls aeration quantity by wind turbine 44 and gas flowmeter 43, passes through
It is 30 DEG C that temperature controller 41, which monitors in real time and controls sewage temperature,；Short distance nitration reactor 4 is realized by mud return line 46
The sludge mixing of settling zone and aeration zone；Regular spoil disposal and the operation and maintenance of short distance nitration reactor 4 are realized by blow-down pipe 47；
5）Anammox：Anaerobic ammonia oxidation reactor 5 uses biofilm reactor, is equipped with volcanic rock filtrate, filling rate
It is 50%, upward flow operational mode, filtering velocity 1.8m/h, and it is 25~35 DEG C to control its reaction temperature；It is enriched in the unit
Under the action of anaerobic ammonia oxidizing bacteria, the NH in water inlet4 +- N and NO2 ˉ- N is removed, while will produce a small amount of NO3 ˉThe portion of-N
It separates water and is back to denitrification dephosphorizing reactor, provide electron acceptor for denitrifying phosphorus removing bacteria, while also can be to being remained in water outlet
Nitrogen oxides be further processed, improve the whole denitrification efficiency of system.In addition, the water part of anaerobic ammonia oxidation reactor is returned
It flow to short distance nitration reactor（Sewage quantity is denoted as R2, R2=50%~100%Q）.
The step of according to above-mentioned specific implementation mode, after domestication and culture in 3 months, the effluent quality of the covering device
It is as follows：COD：<25.0mg/L、NH4 +-N：<1.0mg/L、TN：<7.0mg/L、TP：<0.5mg/L, effluent quality are far superior to《It is dirty
Water comprehensive discharge standard（GB8978-1996）》The requirement of level-one A standards.Analysis method employed in experiment according to《Water and useless
Water monitoring analysis method（Fourth edition）》In standard method.
SRT：Sludge age；HRT：Hydraulic detention time；MLSS：Mixed genetic-neural network.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (8)
1. a kind of municipal sewage denitrification and dephosphorization equipment, it is characterised in that：Including passing through the sequentially connected denitrification dephosphorization of main line
Reactor, medium sediment pool, current divider, short distance nitration reactor and anaerobic ammonia oxidation reactor；The denitrification dephosphorizing reactor with
Sludge in medium sediment pool can be imported the mud return line of denitrification dephosphorizing reactor by being equipped between medium sediment pool；The denitrification dephosphorization
Denitrification dephosphorization can be imported by the water outlet of anaerobic ammonia oxidation reactor by, which being equipped between reactor and anaerobic ammonia oxidation reactor, reacts
The sewage backflow pipe of device；Anaerobism ammonia can be imported by the water outlet of current divider by being equipped between the current divider and anaerobic ammonia oxidation reactor
The pipeline of oxidation reactor；Being equipped between the short distance nitration reactor and anaerobic ammonia oxidation reactor can be anti-by Anammox
The water outlet of device is answered to import the sewage backflow pipe of short distance nitration reactor；The anaerobic ammonia oxidation reactor is surveyed online equipped with water quality
Determine instrument and flow controller, and the flow controller is connected with current divider.
2. a kind of municipal sewage denitrification and dephosphorization equipment according to claim 1, it is characterised in that：The denitrification dephosphorization is anti-
Device is answered to be provided with water inlet pipe, mud return line, sewage backflow pipe, outlet pipe, blow-down pipe, aeration facility and stirring facility.
3. a kind of municipal sewage denitrification and dephosphorization equipment according to claim 2, it is characterised in that：The denitrification dephosphorization is anti-
Device is answered to be made of anaerobic zone and aerobic area, water inlet pipe and mud return line are arranged in anaerobic zone, and sewage backflow pipe, is put outlet pipe
Blank pipe, aeration facility and stirring facility are arranged in aerobic area.
4. a kind of municipal sewage denitrification and dephosphorization equipment according to claim 1, it is characterised in that：The medium sediment pool is provided with
Water inlet pipe, outlet pipe and mud return line.
5. a kind of municipal sewage denitrification and dephosphorization equipment according to claim 1, it is characterised in that：The short distance nitration reaction
Device is provided with water inlet pipe, outlet pipe, mud return line, sewage backflow pipe, blow-down pipe, temperature controller, DO analyzers and aeration
Facility.
6. a kind of municipal sewage denitrification and dephosphorization equipment according to claim 1, it is characterised in that：The Anammox is anti-
Device is answered to be provided with water inlet pipe, outlet pipe, blow-down pipe, backwash tube, temperature controller.
7. a kind of municipal sewage denitrification and dephosphorization method, it is characterised in that：Include the following steps：
1) denitrification dephosphorizing reactor：Municipal sewage initially enters denitrification dephosphorizing reactor, wherein being enriched with a large amount of anti-nitre
Change dephosphorization bacterial；The anaerobic zone of denitrification dephosphorizing reactor receives the returned sludge of medium sediment pool simultaneously, denitrification dephosphorizing reactor
Aerobic area receives the phegma of Anammox unit, when nitrogen oxides is more, full in the phegma of anaerobic ammonia oxidation reactor
When electron acceptor needed for sufficient denitrification dephosphorization, stop the aeration facility of aerobic area, while opening stirring facility, at this time denitrification
Dephosphorizing reactor is run under anaerobic/anoxic operating mode, and denitrifying phosphorus removing bacteria is real using the nitrogen oxides in phegma as electron acceptor
It is removed while existing nitrogen, phosphorus；When nitrogen oxides is less in the phegma of anaerobic ammonia oxidation reactor, it is insufficient for needed for dephosphorization
Electron acceptor when, stop stirring, open aeration, at this time the unit using aerobic/anaerobic operating mode operation, realize the removal of phosphorus；
2) medium sediment pool：The water outlet of denitrification dephosphorizing reactor is introduced into medium sediment pool and carries out mud-water separation, the partial sludge of medium sediment pool
It is back to the anaerobic zone of denitrification dephosphorizing reactor, is arranged outside remaining sludge；
3) current divider：The water outlet of medium sediment pool is introduced into current divider, is classified as two parts in current divider, first part be discharged into
Enter short distance nitration reactor, second part water outlet enters anaerobic ammonia oxidation reactor, passes through the water on anaerobic ammonia oxidation reactor
Matter on-line determination instrument is formed to the nitrogen in anaerobic ammonia oxidation reactor water outlet and content monitors in real time, and result is exported
To flow controller, the sewage ratio into short distance nitration reactor and anaerobic ammonia oxidation reactor is adjusted；As NH in water outlet4 +-N
When content is higher, it is lowered into the sewage quantity of anaerobic ammonia oxidation reactor；As NO in water outlet2 -When N content is higher, improves and enter
The sewage quantity of anaerobic ammonia oxidation reactor；As NO in water outlet3 -When N content is higher, improves anaerobic ammonia oxidation reactor and be back to instead
The sewage quantity of nitrification and phosphorus removal reactor；
4) short distance nitration reactor：A large amount of ammonia oxidizing bacteria is enriched in short distance nitration reactor, through current divider introduce into
Water carries out high-efficiency short-range nitration herein, then will be enriched in NO2 -The water outlet of-N imports anaerobic ammonia oxidation reactor；
5) anaerobic ammonia oxidation reactor：The reactor uses carrier organism membrane reactor, and a large amount of anaerobism ammonia is enriched on carrier
Oxidizing bacteria；It will receive the water outlet of the part water outlet and short distance nitration reactor of current divider simultaneously, in anaerobic ammonia oxidizing bacteria
The lower progress autotrophy of effect is denitrogenated；A water outlet part for anaerobic ammonia oxidation reactor is back to denitrification dephosphorizing reactor, a part
It is back to short distance nitration reactor, is arranged outside rest part.
8. municipal sewage denitrification and dephosphorization method according to claim 7, it is characterised in that：Into denitrification dephosphorizing reactor
Municipal sewage total amount be denoted as Q, sludge quantity r=20%~50%Q of denitrification dephosphorizing reactor is flowed back into through medium sediment pool；Through shunting
Sewage quantity q of the device distribution into short distance nitration reactor1=50%~70%Q；Enter anaerobic ammonia oxidation reactor through current divider distribution
Sewage quantity q2=30%~50%Q；Anaerobic ammonia oxidation reactor effluent recycling to denitrification dephosphorizing reactor sewage quantity R1=50%
~100%Q；Anaerobic ammonia oxidation reactor effluent recycling to short distance nitration reactor sewage quantity R2=50%~100%Q.
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| CN106219749A (en) * | 2016-09-23 | 2016-12-14 | 北京林业大学 | A kind of process in the HABR technical method of the nitrogenous organic wastewater of low concentration and equipment |
| CN108585189A (en) * | 2018-03-26 | 2018-09-28 | 北京工业大学 | The apparatus and method of segmentation water outlet denitrification dephosphorization-short distance nitration biological film coupling Anammox processing city domestic sewage |
| CN109592785B (en) * | 2018-12-28 | 2021-04-06 | 中国科学院生态环境研究中心 | Anaerobic membrane reactor-partial nitrosation-anaerobic ammonia oxidation combined device and method |
| EP3924306A4 (en) * | 2019-05-24 | 2023-08-09 | The University of Queensland | Method for treating wastewater or sludge |
| CN110104903A (en) * | 2019-06-10 | 2019-08-09 | 南方创业（天津）科技发展有限公司 | A kind of integration short distance nitration Anammox equipment and its treatment process |
| CN110092551B (en) * | 2019-06-14 | 2020-01-07 | 广西碧清源环保投资有限公司 | Control method and system for denitrification and dephosphorization recycling of ceramic membrane sewage |
| 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 |
| CN110436620B (en) * | 2019-08-30 | 2024-06-11 | 杭州沁霖生态科技有限公司 | Synchronous denitrification wetland and treatment process thereof |
| CN110950429A (en) * | 2019-11-07 | 2020-04-03 | 广州市华绿环保科技有限公司 | Anaerobic ammonia oxidation method and system for treating domestic sewage |
| CN112979099A (en) * | 2021-04-09 | 2021-06-18 | 山东大学 | Process and device for synchronously recovering carbon and phosphorus in sewage by coupling autotrophic nitrogen removal |
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