CN103601341B - SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation - Google Patents
SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation Download PDFInfo
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Abstract
The invention provides a SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation, and belongs to the technical field of sewage biological treatment. The device is provided with an SBR and an SBBR and is characterized in that sewage enters the SBR firstly, so that the biological phosphorus removal is realized through anaerobic-aerobiotic alternate operation, and meanwhile, organic matters in water are removed through heterotrophic bacteria; by controlling the short sludge age and no occurrence of nitrification, the surplus sludge quantity is large, and the phosphorous and organic matter removal effect is good; and yielding water of the SBR enters the SBBR, so that the partial nitrification-anaerobic ammonia oxidation autotrophic nitrogen removal is realized through low-oxygen aeration operation. The process operation method comprises the following steps: (1) sludge inoculation and initialization phase; and (2) operational phase. The method and the device are suitable for the treatment of municipal sewage with low carbon nitrogen ratio, are energy-saving and have good nitrogen and phosphorous removal effects and high removal rate of pollutants; and the system control is flexible.
Description
Technical field
The present invention relates to a kind of method and device of the SBR+SBBR municipal effluent high-performance bio process based on Anammox, belong to technical field of biological sewage treatment.
Background technology
Body eutrophication is day by day serious, and in sewage, the discharge of nitrogen phosphorus causes its major reason.The removal of nitrogen and phosphorus pollutants has become the key issue of sewage disposal and regeneration.Require that all pollutant discharging units effluent quality is that ammonia nitrogen is less than 5mg/L in " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) that China promulgates for 2002, total nitrogen is less than 15mg/L, and the sewage work's total phosphorus built after on January 1st, 2006 is simultaneously less than 0.5mg/L.The energy consumption of existing sewage work is very high, and wherein a lot of sewage disposal plant effluent water quality can not reach first discharge standard, needs to carry out upgrading.How while realizing high-efficient denitrification and dephosphorization, to reduce water treatment energy consumption, reduce processing costs, for the Sustainable development important in inhibiting of sewage disposal.
The microorganism that biological phosphate-eliminating is referred to as polyP bacteria primarily of a class completes.Active sludge is alternate run under anaerobic and aerobic state, and in mud, polyP bacteria discharges phosphorus under anaerobic state, under good oxygen condition, excessively absorb phosphorus; Through the rich phosphorus excess sludge of discharge, its result, compared with traditional activated sludge process, efficiently can remove the phosphor contaminant in sewage.SBR technique is alternate run under anaerobic-aerobic, and the phosphatic polyP bacteria of excess accumulation is preponderated growth, makes active sludge phosphorus content higher than ordinary activated sludge.The alternate run of anaerobic stages and aerobic stage is conducive to the granulating of active sludge simultaneously, and sludge settling property is significantly improved, and improves contaminant removal efficiency.
Traditional bio-denitrification technology generally adopts nitrification-denitrification technique, under aerobic condition, ammonium oxidation is become nitric nitrogen by nitrifier, and then under anaerobic environment, denitrifying bacteria utilizes organism that nitrate-nitrogen reduction is become nitrogen.The limitation of traditional technology needs organism as the electron donor completing nitrate reduction in denitrification process.The water inlet carbon-nitrogen ratio of municipal sewage plant of China is general lower, and the shortage of carbon source becomes the bottleneck that denitrogenation dephosphorizing efficiency cannot improve, and additional carbon can increase considerably sewage disposal expense.The discovery of anaerobic ammonia oxidizing bacteria makes sewage whole process autotrophic denitrification become possibility, and this bacterial classification has unique pathways metabolism, can utilize nitrite, as electron donor, ammonium oxidation is generated nitrogen.Compare traditional denitrification process Anammox technology and there is obvious advantage: 1. anaerobic ammonia oxidizing bacteria is chemoautotrophic bacteria, using inorganic carbon as carbon source, thus in denitrification process without the need to adding organic carbon source, save working cost; 2. nitrifying process only by the ammonium oxidation of 50% to nitrite, significantly need reduce oxygen supply energy consumption; 3. the nitric efficiency of Anammox technology and elimination capacity higher, produce and seldom measure excess sludge; 4. can reduce the discharge of greenhouse gases Nitrous Oxide in a large number, environmental benefit is obvious.
As a kind of bio-denitrification technology of Sustainable development, anaerobic ammonia oxidation process has good prospect.But anaerobic ammonia oxidizing bacteria belongs to autotrophic bacteria, cell yield is low, is not easy enrichment at short notice.The anaerobic ammonia oxidizing bacteria doubling time of current report is 11d, even longer.When the simultaneous reactions device initial stage, mud easily runs off, and causes the smooth enrichment of anaerobic ammonia oxidizing bacteria more difficult.The present invention is the start time shortening anaerobic ammonia oxidation process, needs the mud of enhanced reactor to hold and stays ability, to promote the fast enriching of anaerobism ammonia oxygen bacterium.Adopt novel technology of biological membrane can hold the ability stayed with enrichment by reinforcement sludge.Test proves the start time that can shorten anaerobic ammonia oxidation process by adding filler in system to a certain extent.
The research and apply of current Anammox technology mainly concentrates in the process of high temperature high ammonia-nitrogen wastewater, and under normal temperature, the research Application comparison of municipal effluent Anammox technology is few.Synchronous denitrogen dephosphorus technology of city sewagte based on Anammox technology rarely has report.Applying of current Anammox technical finesse municipal effluent needs the problem solved to comprise: how effectively to hold in reactor and stay and enrichment anaerobic ammonia oxidizing bacteria; How concerted reaction device different strain mutual ratio thus improve the stability that reaction runs; How to reduce the complexity that system cloud gray model is safeguarded.Therefore, need to propose the novel apparatus and method utilizing anaerobic ammonia oxidation process Treating Municipal Sewage.
Summary of the invention
Object of the present invention is high for existing municipal sewage treatment energy consumption exactly, stable water outlet is poor, part water outlet nitrogen phosphorus can not reach one-level A target problem, propose a kind of SBR+SBBR municipal effluent high-performance bio treatment unit based on Anammox and operation method, first sewage is passed into sbr reactor device by the method and device, discharge rich phosphorous sludge by anaerobic phosphorus release process-aerobic suction phosphorus process alternate run and realize biological phosphate-eliminating, in aerobic processes, remove the partial organic substances in water inlet by heterotrophic bacterium simultaneously; Then sewage passes into SBBR reactor, carries out autotrophic denitrification by short distance nitration-anaerobic ammoxidation.This SBBR application of installation new packing and suspended active mud are effectively held and are stayed enrichment anaerobic ammonia oxidizing bacteria, improve and stay ability to holding of mud, increase the concentration of microorganism.SBBR reactor forms different superiority bacteria spps on suspended sludge and microbial film, thus the advantage of activated sludge process and biomembrance process is organically combined, and can significantly improve processing power and the operation stability of system.And by the suitable growth environment that the microorganism that rational structure of reactor and hydraulic flow state are difference in functionality provides, realize the quick startup of anaerobic ammonia oxidation process, and improve the nitric efficiency of system and the stability of technique.
The object of the invention is to be solved by following solution: a kind of SBR+SBBR municipal effluent high-performance bio treatment unit based on Anammox, it is characterized in that, mainly comprise municipal effluent raw water box (1), SBR dephosphorization organic matter removal reactor (2), intermediate water tank (3), SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4); What municipal effluent raw water box stored is the preliminary sedimentation tank sewage of municipal wastewater treatment plant, and main pollution substance is organism and ammonia nitrogen; Municipal effluent raw water box (1) is provided with the first upflow tube (1.1) and the first blow-down pipe (1.2); Municipal effluent raw water box (1) is connected with SBR dephosphorization organic matter removal reactor (2) water inlet pipe by SBR intake pump (1.3); SBR dephosphorization organic matter removal reactor (2) is provided with speed-adjustable stir device (2.1), first row water valve (2.2), first row slurry valve (2.3), primary diaphragm aeration head (2.4), the first air volume regulating valve (2.5), gas blower (2.6) and gas meter (2.7); SBR dephosphorization organic matter removal reactor (2) rising pipe is connected with intermediate water tank (3); Intermediate water tank (3) is provided with the second upflow tube (3.1) and the second blow-down pipe (3.2); Intermediate water tank (3) is connected with SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) by SBBR intake pump (3.3); SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) is provided with second row water valve (4.1), second row slurry valve (4.2), secondary diaphragm aeration head (4.3), the second air volume regulating valve (4.4), SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) internal fixtion has the fixing filler (4.5) of dispersion, and fixing filler is the compounded mix of sponge and PE material composition in prior art.The cubic material of to be the length of side the be 0.5-1.5cm of the sponge preferably in fixing filler, PE is cylindric material.
Municipal effluent treatment scheme is in this device: city preliminary sedimentation tank sewage enters sewage raw water box, by intake pump to the water inlet of SBR dephosphorization organic matter removal reactor, phosphorus and organism are efficiently removed organic Degradation by biological phosphate-eliminating effect and heterotrophic bacterium; The water outlet of SBR dephosphorization organic matter removal reactor enters intermediate water tank and carries out runoff investigation; The sewage of intermediate water tank is intake to SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor by intake pump; Then SBBR reactor runs under low DO condition, and while the nitrogen transformation of ammonia oxidation bacteria oxidize ammonia is nitrite, anaerobic ammonia oxidizing bacteria utilizes substrates ammonia nitrogen and nitrous to react and generates nitrogen.Denitrifying bacteria in simultaneous reactions device can utilize the organism of SBR dephosphorization organic matter removal reactor water outlet remnants to carry out denitrification, and the nitrate-nitrogen reduction that Anammox effect is produced is nitrogen; The efficient object removed from sewage by organism and nitrogen and phosphorus pollution thing is finally reached by said process.
Based on a method for the SBR+SBBR municipal effluent high-performance bio device Treating Municipal Sewage of above-mentioned Anammox, it is characterized in that, the concrete step started and regulate and control is as follows:
1) seed sludge and unloading phase: SBR dephosphorization organic matter removal reactor (2) inoculation municipal wastewater treatment plant second pond returned sluge, makes sludge concentration at 4-6g/L, preferred 5g/L; SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) inoculates the short distance nitration mud of municipal wastewater treatment plant second pond returned sluge and steady running according to volume ratio 1:1, make sludge concentration at 2-4g/L, preferred 2.5g/L, and in the high ammonia-nitrogen wastewater anaerobic ammonia oxidation reactor of steady running, get appropriate biofilm packing inoculate, biofilm packing volume accounts for total reactor volume and is not less than 4%;
2) normal operating phase
2.1SBR dephosphorization organic matter removal reactor (2) operation scheme is, first normal temperature water inlet, anaerobism stirs, aerobic aeration, remove most of organism, quiescent setting, draining enters intermediate water tank (3), wherein makes Dissolved Oxygen concentration Control at 3-5mg/L at aerobic stage, hydraulic detention time HRT controls at 2-8h, preferred 4h, sludge retention time controls at 3-5d, preferred 4d; Preferred flooding quantity is the half of SBR dephosphorization organic matter removal reactor (2) volume;
2.2SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) operation scheme is, the water of intermediate water tank (3) enters SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4), the valve of adjustment aerating pipelines carries out low-oxygen aeration, dissolved oxygen in control reactor is at 0.1-0.3mg/L, ensure that mud more fully suspends at reactor simultaneously, there is not short stream and dead band, period of aeration, make total nitrogen lower than 15mg/L, quiet heavy 15-30min afterwards, finally by water discharge valve draining, hydraulic detention time HRT is 5-10h, preferred 7h.
After further SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) is stable, if ammonia nitrogen concentration is lower than 5mg/L at the end of aeration, then reduce system aeration time.If ammonia nitrogen concentration is higher than 5mg/L at the end of aeration, then increase system aeration time.Until system water outlet ammonia nitrogen concentration is less than 5 be greater than 0.5mg/L simultaneously, in case there is aeration phenomena impair ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria activity when substrate concn is too low.
A kind of method based on the process of Anammox SBR+SBBR municipal effluent high-performance bio of the present invention, to compare with conventional anaerobic ammonia oxidation denitrification treatment process with existing traditional biological denitrification process and there is following advantage:
1) the present invention realizes the synchronous denitrification dephosphorizing of low ratio of carbon to ammonium municipal effluent by SBR+SBBR system, and the dephosphorization of sewage and denitrogenation are carried out respectively in two independently reactor, are conducive to the cultivation of dominant bacteria; Enrichment nitrifier and anaerobic ammonia oxidizing bacteria in enrichment polyP bacteria and SBBR reactor in sbr reactor device respectively, for functional microorganism provides suitable growing environment, avoid polyP bacteria, ammonia oxidation bacteria, the contradiction of anaerobic ammonia oxidizing bacteria on sludge age and dissolved oxygen concentration, improve the activity of each functional microorganism and corresponding contaminant removal efficiency.
2) the present invention is by the short sludge age (3-5d) of control SBR dephosphorization organic matter removal reactor, ammonia oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) can not be grown, there is not nitrification, save the energy and improve dephosphorization organic matter removal effect.Sbr reactor device of the present invention is at anaerobic and aerobic alternate run simultaneously, optionally discharges floc sludge and can realize granular sludge rapidly, sludge settling property is significantly improved, improve reactor operational efficiency.
3) the present invention by the compound bio membrane technique of SBBR reactor for ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria provide suitable growth conditions respectively.Utilize the growth conditions that suspended active mud provides suitable dissolved oxygen etc. to be suitable for for ammonia oxidation bacteria growth, utilize fixing filler to provide adapt circumstance for anaerobic ammonoxidation bacterium concentrating, avoid dissolved oxygen too high in mud flco to the restraining effect of anaerobic ammonia oxidizing bacteria.SBBR reactor removes the total nitrogen in sewage, without the need for machine thing as denitrifying carbon source based on Anammox technology.
4) operation energy consumption of the present invention reduces, and operation is simple.The present invention adopts short distance nitration-anaerobic ammoxidation autotrophic denitrification Process for Treating Municipal, can save the aeration rate of 60%; The technology adopting the microbial film of fixing filler and suspended sludge to combine realizes integral anaerobic ammonia oxidation process, aerating system only need realize the effective of suspended sludge and mix, effectively reduce operation energy consumption, also be conducive to control and the maintenance of low dissolved axygen simultaneously, improve the stability of system cloud gray model.Adopt SBR technique to carry out Enhanced Biological Phosphorus Removal, anti impulsion load ability is strong, runs control simple.Start time of the present invention is short, and parallel-adder settle-out time is long, effective, and has good survivability, and the collapse resistance restore cycle is short.
In sum, utilize Treating Municipal Sewage of the present invention, without the need to organism as carbon source, the organic carbon source of 100% can be saved, produce few greenhouse gases; Denitrogenation dephosphorizing efficiency is high simultaneously, and operation is simple, and system treatment effect is stablized.The municipal effluent water yield is large, and processing costs is high, and this invention application in municipal sewage treatment has extremely important impact to whole sewage treatment industry is energy-saving and cost-reducing.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation based on Anammox SBR+SBBR municipal effluent high-performance bio treatment unit of the present invention.
Fig. 2 is that SBR dephosphorization organic matter removal reactor runs the change curve of 82 cycles to nitrogen removal effect continuously.
Fig. 3 is that SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor runs the change curve of 82 cycles to nitrogen removal effect continuously.
Fig. 4 for this reason technique runs the change curve of 82 cycles to phosphorus and COD removal effect continuously.
---municipal effluent raw water box, 2---SBR dephosphorization organic matter removal reaction 2,3---intermediate water tank, 4---SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor in Fig. 1: 1; 1.1---the first upflow tube, 1.2---the first blow-down pipe, 1.3---SBR intake pump; 2.1---speed-adjustable stir device, 2.2---first row water valve, 2.3---first row slurry valve, 2.4---primary diaphragm aeration head, 2.5---the first air volume regulating valve, 2.6---gas blower, 2.7---gas meter; 3.1---the second upflow tube, 3.2---the second blow-down pipe, 3.3---SBBR intake pump; 4.1---water discharge valve, 4.2---second row slurry valve, 4.3---secondary diaphragm aeration head, 4.4---the second air volume regulating valve, 4.5---fixing filler.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
A kind of device based on the process of Anammox SBR+SBBR municipal effluent high-performance bio is provided with municipal effluent raw water box 1, SBR dephosphorization organic matter removal reactor 2, intermediate water tank 3, SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor 4 as shown in Figure 1; What municipal effluent raw water box stored is the preliminary sedimentation tank sewage of municipal wastewater treatment plant, and main pollution substance is organism and ammonia nitrogen; Municipal effluent raw water box 1 is provided with the first upflow tube 1.1 and the first blow-down pipe 1.2; Municipal effluent raw water box 1 is connected with SBR dephosphorization organic matter removal reactor 2 water inlet pipe by SBR intake pump 1.3; SBR dephosphorization organic matter removal reactor 2 is provided with speed-adjustable stir device 2.1, first row water valve 2.2, first row slurry valve 2.3, primary diaphragm aeration head 2.4, first air volume regulating valve 2.5 gas blower 2.6 and gas meter 2.7; SBR dephosphorization organic matter removal reactor 2 rising pipe is connected with intermediate water tank 3; Intermediate water tank 3 is provided with the second upflow tube 3.1 and the second blow-down pipe 3.2; Intermediate water tank 3 is connected with SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor 4 by SBBR intake pump 3.3; It is that the regular cube shape of 0.5-1.5cm fixes filler 4.5 that SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor 4 is provided with water discharge valve 4.1, second row slurry valve 4.2, secondary diaphragm aeration head 4.3, second air volume regulating valve 4.4 and the length of side.
Test adopts the Primary Settling Tanks of Municipal Wastewater Treatment Plant water outlet of Beijing Gaobeidian City as former water, and concrete water quality is as follows: COD concentration is 160-250mg/L; NH
+ 4-N concentration is 32.46-58mg/L, NO
2 --N≤0.25mg/L, NO
- 3-N≤1mg/L.As shown in Figure 1, each reactor all adopts synthetic glass to make to pilot system, and SBR dephosphorization organic matter removal reactor effective volume is 120L; SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor useful volume is 120L.
Carrying out practically operation is as follows:
1) seed sludge and unloading phase: SBR dephosphorization organic matter removal reactor inoculation municipal wastewater treatment plant second pond returned sluge, makes sludge concentration at about 5g/L.SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor inoculates the short distance nitration mud of municipal wastewater treatment plant second pond returned sluge and steady running according to volume ratio 1:1, make sludge concentration at about 2.5g/L, and in the high ammonia-nitrogen wastewater anaerobic ammonia oxidation reactor of steady running, get appropriate biofilm packing inoculate, packing volume accounts for 10% of total reactor volume.
2) normal operating phase:
2.1SBR dephosphorization organic matter removal reactor 2 operation scheme is, 60L of first intaking (reactor volume 120L, draining ratio is 50%), stirring at low speed 30min, aeration 90min, quiescent setting 10-30min, draining 60L.Make Dissolved Oxygen concentration Control at 3-5mg/L at aerobic stage; Hydraulic detention time HRT controls at 4h; Sludge retention time controls at 4d.
2.2SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor 4 operation scheme is, reactor 2 water outlet 60L enters reactor 4 (reactor volume 120L, draining ratio is 50%).The valve of adjustment aerating pipelines carries out low-oxygen aeration 210min, and the dissolved oxygen in control reactor, at 0.1-0.3mg/L, ensures that mud more fully suspends at reactor, does not occur short stream and dead band simultaneously.Quiet heavy 15-30min afterwards, finally by water discharge valve draining 60L.Hydraulic detention time HRT is 7h;
2.3SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor 4, if ammonia nitrogen concentration is lower than 5mg/L at the end of aeration, then reduces system aeration time.If ammonia nitrogen concentration is higher than 5mg/L at the end of aeration, then increase system aeration time.Until system water outlet ammonia nitrogen concentration is less than 5 be greater than 0.5mg/L simultaneously, in case there is aeration phenomena impair ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria activity when substrate concn is too low.
Test-results shows, as shown in Figure 2 and Figure 3, after stable, and SBR dephosphorization organic matter removal reactor water outlet phosphate concn 0.01-0.22mg/L.SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor water outlet ammonia nitrogen concentration 0.44-7.63mg/L, water outlet nitrous concentration 0-0.67mg/L, water outlet nitre nitrogen concentration 0.68-4.77mg/L, water outlet total nitrogen is lower than 15mg/L.This technique is run the change curve of 82 cycles to phosphorus and COD removal effect continuously and is seen Fig. 4.
Wherein in Fig. 3 about 45 cycles time to take out in SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor after microbial film and mud two days due to instrument failure, namely again run the very short cycle returns to good state.
Claims (6)
1. the method for a Treating Municipal Sewage, it is characterized in that, device used is the SBR+SBBR municipal effluent high-performance bio treatment unit based on Anammox, mainly comprises municipal effluent raw water box (1), SBR dephosphorization organic matter removal reactor (2), intermediate water tank (3), SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4); What municipal effluent raw water box stored is the preliminary sedimentation tank sewage of municipal wastewater treatment plant, and main pollution substance is organism and ammonia nitrogen; Municipal effluent raw water box (1) is provided with the first upflow tube (1.1) and the first blow-down pipe (1.2); Municipal effluent raw water box (1) is connected with SBR dephosphorization organic matter removal reactor (2) water inlet pipe by SBR intake pump (1.3); SBR dephosphorization organic matter removal reactor (2) is provided with speed-adjustable stir device (2.1), first row water valve (2.2), first row slurry valve (2.3), primary diaphragm aeration head (2.4), the first air volume regulating valve (2.5), gas blower (2.6) and gas meter (2.7); SBR dephosphorization organic matter removal reactor (2) rising pipe is connected with intermediate water tank (3); Intermediate water tank (3) is provided with the second upflow tube (3.1) and the second blow-down pipe (3.2); Intermediate water tank (3) is connected with SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) by SBBR intake pump (3.3); SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) is provided with second row water valve (4.1), second row slurry valve (4.2), secondary diaphragm aeration head (4.3), the second air volume regulating valve (4.4), SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) internal fixtion has the fixing filler (4.5) of dispersion, and fixing filler is the compounded mix of sponge and PE material composition; The step of concrete startup and regulation and control is as follows:
1) seed sludge and unloading phase: SBR dephosphorization organic matter removal reactor (2) inoculation municipal wastewater treatment plant second pond returned sluge, make sludge concentration at 4-6g/L, SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) inoculates the short distance nitration mud of municipal wastewater treatment plant second pond returned sluge and steady running according to volume ratio 1:1, make sludge concentration at 2-4g/L, and in the high ammonia-nitrogen wastewater anaerobic ammonia oxidation reactor of steady running, get appropriate biofilm packing inoculate, biofilm packing volume accounts for total reactor volume and is not less than 4%;
2) normal operating phase
2.1SBR dephosphorization organic matter removal reactor (2) operation scheme is, first normal temperature water inlet, anaerobism stirs, aerobic aeration, removes most of organism, quiescent setting, draining enters intermediate water tank (3), wherein make Dissolved Oxygen concentration Control at 3-5mg/L at aerobic stage, hydraulic detention time HRT controls at 2-8h, and sludge retention time controls at 3-5d;
2.2SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) operation scheme is, the water of intermediate water tank (3) enters SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4), the valve of adjustment aerating pipelines carries out low-oxygen aeration, dissolved oxygen in control reactor is at 0.1-0.3mg/L, ensure that mud more fully suspends at reactor simultaneously, there is not short stream and dead band, period of aeration, make total nitrogen lower than 15mg/L, quiet heavy 15-30min afterwards, finally by water discharge valve draining, hydraulic detention time HRT is 5-10h.
2., according to the method for claim 1, it is characterized in that, step 1) middle SBR dephosphorization organic matter removal reactor (2) inoculation municipal wastewater treatment plant second pond returned sluge, make sludge concentration be 5g/L; SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) inoculates the short distance nitration mud of municipal wastewater treatment plant second pond returned sluge and steady running according to volume ratio 1:1, makes sludge concentration be 2.5g/L.
3. according to the method for claim 1, it is characterized in that, normal operating phase SBR dephosphorization organic matter removal reactor (2) aerobic stage hydraulic detention time HRT controls at 4h, and sludge retention time controls at 4d.
4. according to the method for claim 1, it is characterized in that, preferred flooding quantity is the half of SBR dephosphorization organic matter removal reactor (2) volume.
5. according to the method for claim 1, it is characterized in that, after SBBR short distance nitration-anaerobic ammoxidation combined biofilm reactor (4) is stable, if ammonia nitrogen concentration is lower than 5mg/L at the end of aeration, then reduce system aeration time, if ammonia nitrogen concentration is higher than 5mg/L at the end of aeration, then increase system aeration time, until system water outlet ammonia nitrogen concentration is less than 5mg/L be greater than 0.5mg/L simultaneously.
6. according to the method for claim 1, it is characterized in that, the cubic material of the sponge of fixing in equipment therefor in filler to be the length of side be 0.5-1.5cm, PE is cylindric material.
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