CN104944583A - Test device and method of SBR partial denitrification dephosphorization/anaerobic ammonia oxidation synchronous nitrogen and phosphorus removal - Google Patents
Test device and method of SBR partial denitrification dephosphorization/anaerobic ammonia oxidation synchronous nitrogen and phosphorus removal Download PDFInfo
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Abstract
The invention provides a test device and method of SBR partial denitrification dephosphorization/anaerobic ammonia oxidation synchronous nitrogen and phosphorus removal, and belongs to the technical field of biological sewage treatment. The device is mainly formed by connecting an SBR partial denitrification dephosphorization reactor with an SBR anaerobic ammonia oxidation reactor in series and is controlled online by a PLC control box. After urban sewage enters the A2/O-SBR partial denitrification dephosphorization reactor, phosphorus-accumulating bacteria conduct anaerobic phosphate release through organic carbon sources in domestic sewage and store internal carbon sources PHA, after phosphate release is finished, water, rich in NO3--N, coming out of the anaerobic ammonia oxidation reactor (4) flows back to the A2/O-SBR partial denitrification dephosphorization reactor (2) from a second intermediate water tank (5) through a backflow pump, NO2--N accumulation is achieved, and aerobic phosphorus uptake and partial ammonia oxidation are conducted through aeration. The carbon source consumption is lowered, oxygen consumption and energy consumption are saved, stable and efficient synchronous nitrogen and phosphorus removal is achieved, NO3--N in the output water where anaerobic ammonia oxidation is conducted is further removed, and the TN concentration of water coming out of a system is further decreased.
Description
Technical field
The testing apparatus of the SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing that the present invention relates to and method, belong to technical field of biological sewage treatment, is a kind of testing apparatus and method of strengthening the city domestic sewage synchronous denitrification dephosphorizing of low C/N.
Background technology
The amount of COD can be utilized in sewage to be the key factor affecting anaerobic phosphorus release and denitrification denitrogenation in denitrification dephosphorization technique.But organism is often inevitably degraded by the treatment process of traditional cities Sewage Plant in aeration tank, even front establishment method, do not make full use of organic value yet.Therefore, the deficiency of organic carbon source can be utilized in water inlet, many sewage works (WWTPs) will be caused can not effectively to remove Eutrophication materials nitrogen and phosphorus.During process low ratio of carbon to ammonium stain disease, need to seek the new technology that effectively can utilize limited carbon source.
Anammox refers under anaerobism or anoxia condition, and anaerobic ammonia oxidizing bacteria take nitrite nitrogen as electron acceptor(EA), and direct and ammonia nitrogen reacts and is converted into the bioprocess of nitrogen, and its reaction equation is such as formula shown in (1).Be that the whole process autotrophic denitrification technology of core has obvious advantage compared with traditional nitrification-denitrification denitride technology with Anammox: anaerobic ammonia oxidizing bacteria is chemoautotrophic bacteria, using inorganic carbon as carbon source, therefore can save the additional carbon of 100%, the working cost of sewage treatment project can be greatly reduced; Only need by the ammonium oxidation of about 50% to nitrite nitrogen in nitrifying process, oxygen requirement and oxygen supply energy consumption decline to a great extent; Nitric efficiency and elimination capacity higher, and sludge yield is few; Reduce the discharge of greenhouse gases Nitrous Oxide.
NH
4 ++1.32NO
2 -+0.066HCO
3 -+0.13H
+→
0.066CH
2O
0.5N
0.15+1.02N
2+0.26NO
3 --N+2.03H
2O (1)
From biological denitrificaion approach [nitrifying process: NH
4 +→ NO
2 -→ NO
3 -; Denitrification process: NO
3 -→ NO
2 -→ NO → N
2o → N
2] upper analysis, we find: by controlling the operational conditions be suitable for, not only can realize NO in nitrifying process
2 -accumulation, and also can NO be realized in denitrification process
2 -accumulation.There are some researches show: for short distance nitration, part denitrification (NO
3 -reduction process controls at NO
2 -stage) not by the impact of DO, the NO that more easily stable realization is higher
2 -accumulation, and reaction process controls simple.
SBR part denitrification dephosphorization/Anammox synchronous denitrogen dephosphorus technology process city domestic sewage, it is a kind of new denitrogenation dephosphorizing thinking, use it for carbon, nitrogen, phosphorus ratio imbalance and in the process of carbon source municipal effluent on the low side, shorten denitrogenation dephosphorizing flow process, technical process is simple, significantly improve Nitrogen/Phosphorus Removal, greatly reduce water outlet nitrogen, phosphorus concentration, achieve denitrogenation dephosphorizing that is efficient, less energy-consumption.
Summary of the invention
Patent of the present invention is for traditional denitrification dephosphorization technique synchronous denitrification dephosphorizing poor effect, existing sewage work cost of sewage disposal is high, sewage disposal poor stability, the problems such as water outlet TN concentration is not up to standard, propose testing apparatus and the method for SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing.This technique is carried out biophase and is separated, the heterotrophic bacteriums such as denitrifying bacteria/dephosphorization bacterial and autotrophic type anaerobic ammonia oxidizing bacteria are separated, make to grow in each comfortable best environment, and given full play to part denitrification, denitrification dephosphorization and Anammox technology advantage separately, not only save running cost, and reach synchronous advanced nitrogen dephosphorization.First sanitary sewage enters A
2/ O-SBR part denitrification dephosphorizing reactor, enhances utilization and the biological phosphor-removing effect of carbon source in former water.DPAOs and the part denitrifying bacteria organism made full use of in former water carries out the storage of anaerobic phosphorus release and PHA, then with the nitric nitrogen of anaerobic ammonia oxidation reactor effluent recycling for electron acceptor(EA), the PHA stored with anaerobism section is for electron donor, carry out part denitrification and anoxic suction phosphorus, be nitrite nitrogen by nitrate-nitrogen reduction, realize the accumulation of nitrous state, simultaneously in order to ensure phosphor-removing effect and make the concentration ratio of Anammox ammonia nitrogen and nitrous be 1:1.32, carry out rear aeration, complete absorption and the part ammonia oxidation of phosphoric residue.The water outlet of being rich in ammonia nitrogen and nitrite nitrogen enters anaerobic ammonia oxidation reactor and carries out autotrophic denitrification, realizes advanced nitrogen.
For reaching efficient synchronous denitrification dephosphorizing effect, the testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing that the present invention adopts, is characterized in that: comprise municipal effluent raw water box (1), A
2/ O-SBR denitrification dephosphorizing reactor (2), the first intermediate water tank (3), Anammox sbr reactor device (4), the second intermediate water tank (5), computer (6), PLC control cabinet (7); Wherein A
2gas meter (9), the first stirring rake (10), aeration head (11), air pump (12), a pH sensor (13), DO sensor (14), a WTW dissolved oxygen meter (15), the first thief hole (16), backflow nitrification liquid water intaking valve (17), the first outlet valve (18), the first magnetic valve (19) is provided with in/O-SBR part denitrification dephosphorizing reactor (2); Anammox sbr reactor device (4) is built-in with the second stirring rake (22), the 2nd pH sensor (23), an ORP sensor (24), the 2nd WTW dissolved oxygen meter (25), the second thief hole (26), the second outlet valve (27), the second magnetic valve (28); Signal converter AD conversion interface (30), signal converter (DA) translation interface (31), aeration rly., the first stirring rly., pH and DO data signal interfaces is provided with in PLC control cabinet (7); Second stirs rly., the 2nd pH and an ORP data signal interfaces;
The testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, is characterized in that: municipal effluent raw water box (1) is by the first intake pump (8) and A
2/ O-SBR part denitrification dephosphorizing reactor (2) is connected; A
2/ O-SBR part denitrification dephosphorizing reactor (2) first outlet valve (18) is connected with the first intermediate water tank (3) through the first magnetic valve (19); First intermediate water tank (3) is connected with Anammox sbr reactor device (4) by the second intake pump (20); Anammox sbr reactor device (4) second outlet valve (27) is connected with the second intermediate water tank (5) through the second magnetic valve (28); Second intermediate water tank (5) is by nitrification liquid reflux pump (21) and A
2/ O-SBR part denitrification dephosphorizing reactor (2) nitrification liquid backflow water intaking valve (17) is connected;
The testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, it is characterized in that: the signal converter AD conversion interface (30) in PLC control cabinet (7) is connected with computer (6) by cable, sensor analog signals be converted to digital signal transfers to computer (6), computer (6) is connected with PLC control cabinet (7) by signal converter DA translation interface (31), the digital command of computer (6) is passed to PLC control cabinet (7), and then treatment system is controlled in real time;
Present invention also offers a kind of test method of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, it is characterized in that, comprise following content:
The test method of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, is characterized in that, comprises following content:
System starts: by denitrification dephosphorization mud and accumulation rate of nitrite nitrogen 70% ~ 80% part denitrification mud (its sludge concentration is respectively 6000 ~ 8000mg/L, 3000 ~ 4000mg/L), by volume for 1:2 is inoculated into part denitrification dephosphorization A
2/ O-SBR reactor (2), makes sludge concentration in reactor be 3500mg/L; Inoculation anaerobic ammonium oxidation granular sludge in anaerobic ammonia oxidation reactor (4), sludge concentration in reactor is made to reach 3000 ~ 4000mg/L, when system nitrogen removal rate reaches more than 85%, tp removal rate reaches more than 95%, namely thinks that SBR part denitrification dephosphorization/Anaerobic ammonium oxidation system starts successfully.
Periodic duty operation steps is as follows:
1) sanitary sewage is added former water tank (1), enter A through the first intake pump (8)
2/ O-SBR part denitrification dephosphorizing reactor (2), after water inlet end, opens the first agitator (8), and anaerobism stirs 1 ~ 2h, stops stirring when anaerobism stirs when flex point appears in pH value curve;
2), after anaerobism terminates, start nitrification liquid reflux pump (21) and Anammox sbr reactor device (4) water outlet of 1/3 ~ 2/3 is back to A from the second intermediate water tank (5)
2/ O-SBR part denitrification dephosphorizing reactor (2), anoxia stirring 1 ~ 2h, stops anoxia stirring when flex point appears in pH value curve when anoxia stirring;
3) after hypoxia response terminates, booster air pump (12), by gas meter (9) adjusting gas flow, aeration agitation 1 ~ 1.5h, and be 1.5 ~ 2.0mg/L by on-line monitoring system and feedback control system control DO concentration, then quiescent setting 30min, water outlet enters the first intermediate water tank (3) through the first outlet valve (18) and the first magnetic valve (19), and draining ratio is 0.4 ~ 0.6;
4) the second intake pump (20) is started by A
2/ O-SBR part denitrification dephosphorizing reactor (2) water outlet, from the first intermediate water tank (3) suction Anammox sbr reactor device (4), after water inlet end, opens the second stirring rake (20), anoxia stirring 3 ~ 4h;
5), after Anammox reaction terminates, draining after quiescent setting 30min, draining ratio is 0.4 ~ 0.6, after its water outlet enters the second intermediate water tank (5), then is back to A through nitrification liquid reflux pump (21)
2/ O-SBR part denitrification dephosphorizing reactor (2) and through water port (32) discharge system, its volume ratio controls 0.5 ~ 2; Then system enters next cycle, repeats above step;
A
2/ O-SBR part denitrification dephosphorizing reactor (2) run time every day spoil disposal, make SRT be 10 ~ 15d, in reactor, sludge concentration maintains within the scope of 3000 ~ 4000mg/L; When Anammox sbr reactor device (4) runs, clean the second intermediate water tank (5) every day, the mud be deposited in bottom it is refunded Anammox sbr reactor device (5), run off to prevent anaerobic ammonium oxidation sludge;
The testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing of the present invention and method, have following advantage compared with existing traditional biological denitrification dephosphorization technique:
1) contradiction and competition that dephosphorization bacterial and denitrifier exist in carbon source is inherently solved
Nitrogen in former water is removed mainly through anaerobic ammonium oxidation process, and Anammox reaction is autotrophy reaction, does not consume the organic carbon source in former water.Compared with complete denitrification dephosphorization, part denitrification dephosphorization greatly reduces the consumption of carbon source, thus ensure that in dephosphorization process have enough organism, inherently solves contradiction and competition that dephosphorization bacterial and denitrifier exist in carbon source.
2) contradiction in dissolved oxygen of dephosphorization bacterial and denitrifier and competition is solved
Adopt biophase isolation technique, efficient coupling Denitrifying Phosphorus Removal Technology, part denitrification technology and Anammox technology.Solve contradiction in dissolved oxygen of dephosphorization bacterial and denitrifier and competition, be easier to denitrogenation dephosphorizing rate and the operation stability of maintenance system.
3) save organic carbon source, save aeration rate, reduce excess sludge production, reduce energy consumption and working cost
First sanitary sewage enters denitrification dephosphorizing reactor, and anaerobism stirs, and farthest make use of the organic carbon source in former water, " carbon is dual-purpose " carries out synchronous denitrification dephosphorizing, avoids adding of outer carbon source, and anaerobic ammonia oxidizing bacteria is autotrophic bacteria, with CO
2for inorganic carbon source, do not consume the organism in former water; The reaction of Anammox and denitrification dephosphorization is all without the need to the participation of oxygen; During this process operation, organic carbon source participates in less, greatly can reduce excess sludge production, reduces sludge treatment expense.
4) technical process is simple, and outlet effect is stablized, and can realize denitrogenation dephosphorizing that is efficient, less energy-consumption
Principal reaction device of the present invention only has part denitrification dephosphorization A
2/ O-SBR and Anammox sbr reactor device, have the advantages such as controllability is strong, technique is simple.On the one hand, preamble part denitrification dephosphorization achieves stable nitrite nitrogen accumulation, compare the denitrogenation processing mode of preposition complete denitrification dephosphorization to nitrate nitrogen in anaerobic ammonia oxidation effluent, reduce the consumption of carbon source, thus saving running cost, quantity discharged and the sludge yield of denitrification process greenhouse gases can also be reduced in addition; On the other hand, Denitrifying Phosphorus Removal Technology achieves the unification of denitrogenation and dephosphorization process, effectively can utilize the NO that the carbon source in sewage and anaerobic ammonium oxidation process produce
3 --N, makes denitrification and dephosphorization occur simultaneously, and the synchronous denitrification dephosphorizing of sewage is more easily realized.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing of the present invention.
In Fig. 1: 1-municipal effluent raw water box; 2-A
2/ O-SBR reactor; 3-first intermediate water tank; 4-Anammox sbr reactor device; 5-second intermediate water tank; 6-computer; 7-PLC controlling box; 8-first intake pump; 9-gas meter; 10-first stirring rake; 11-aeration head; 12-air pump; 13-the one pH sensor; 14-DO sensor; 15-the one WTW dissolved oxygen meter; 16-first thief hole; 17-nitrification liquid backflow water intaking valve; 18-first outlet valve; 19-first magnetic valve; 20-second intake pump; 21-nitrification liquid reflux pump; 22-second stirring rake; 23-the 2nd pH sensor; 24-ORP sensor; 25-the 2nd WTW dissolved oxygen meter; 26-second thief hole; 27-second outlet valve; 28-second magnetic valve; 29-control bus; 30-signal converter AD conversion interface; 31-signal converter DA conversion interface; 32-system Chinese effluent mouth.
Concrete embodiment:
Below in conjunction with drawings and Examples, the present invention will be further described:
As shown in Figure 1, the testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing of the present invention, is characterized in that: comprise municipal effluent raw water box (1), A
2/ O-SBR denitrification dephosphorizing reactor (2), the first intermediate water tank (3), Anammox sbr reactor device (4), the second intermediate water tank (5), computer (6), PLC control cabinet (7); Wherein municipal effluent raw water box (1) is by the first intake pump (8) and A
2/ O-SBR part denitrification dephosphorizing reactor (2) is connected; A
2/ O-SBR part denitrification dephosphorizing reactor (2) first outlet valve (18) is connected with the first intermediate water tank (3) through the first magnetic valve (19); First intermediate water tank (3) is connected with Anammox sbr reactor device (4) by the second intake pump (20); Anammox sbr reactor device (4) second outlet valve (27) is connected with the second intermediate water tank (5) through the second magnetic valve (28); Second intermediate water tank (5) is by nitrification liquid reflux pump (21) and A
2/ O-SBR part denitrification dephosphorizing reactor (2) nitrification liquid backflow water intaking valve (17) is connected; Signal converter AD conversion interface (30) in PLC control cabinet (7) is connected with computer (6) by cable, sensor analog signals be converted to digital signal transfers to computer (6), computer (6) is connected with PLC control cabinet (7) by signal converter DA translation interface (31), the digital command of computer (6) is passed to PLC control cabinet (7), and then treatment system is controlled in real time;
With Certain University in Beijing dependents' district sanitary sewage for handling object, investigate the denitrogenation dephosphorizing performance of this system.Its water quality characteristic is as follows: COD concentration is 206.01 ~ 307.36mg/L, NH
4 +-N concentration is 61.17 ~ 73.82mg/L, NO
2 -concentration <0.5mg/L, NO
3 -concentration is 0 ~ 0.83mg/L, PO
4 3--P concentration is that 5.81 ~ 8.92mg/L, C/N ratio is about 3.3, C/P ratio and is about 40.36.Duration of test, concrete operation operating procedure and Process operating parameters as follows:
1) system starts: by denitrification dephosphorization mud and accumulation rate of nitrite nitrogen 70% ~ 80% part denitrification mud (its sludge concentration is respectively 6000 ~ 8000mg/L, 3000 ~ 4000mg/L), by volume for 1:2 is inoculated into part denitrification dephosphorization A
2/ O-SBR reactor (2), makes sludge concentration in reactor be 3500mg/L; Inoculation anaerobic ammonium oxidation granular sludge in anaerobic ammonia oxidation reactor (4), sludge concentration in reactor is made to reach 3000 ~ 4000mg/L, when system nitrogen removal rate reaches more than 85%, tp removal rate reaches more than 95%, namely thinks that SBR part denitrification dephosphorization/Anaerobic ammonium oxidation system starts successfully.
2) periodic duty operation steps: start the first intake pump (8) and 3L sanitary sewage is pumped into A by former water tank (1)
2/ O-SBR denitrification dephosphorizing reactor (2), after water inlet end, first agitator (8) starts to stir, anaerobism stirs 2h, the VFAs that polyP bacteria makes full use of in former water synthesizes internal carbon source PHA, discharge phosphorus, stop stirring when anaerobism stirs when flex point appears in pH value curve, test finds that the COD of about 80% removed in this stage simultaneously;
3), after anaerobism terminates, start nitrification liquid reflux pump (21) and device (4) water outlet of 3L Anammox sbr reactor is back to A from the second intermediate water tank (5)
2/ O-SBR part denitrification dephosphorizing reactor (2), anoxia stirring 2h, DPAOS are using the nitric nitrogen of backflow as electron acceptor(EA), and the PHA that anaerobism section stores is electron donor, carry out the reaction of anoxic part denitrifying phosphorus uptake, by NO
3 --N is reduced to NO
2 --N, realizes NO
2 --N accumulates, and carries out anoxic simultaneously and inhales phosphorus;
4) after hypoxia response terminates, booster air pump (12), by gas meter (9) adjusting gas flow, aeration agitation 1h, carry out aerobic suction phosphorus and part short distance nitration, and be 1.5 ~ 2.0mg/L by on-line monitoring system and feedback control system control DO concentration, then quiescent setting 30min, water outlet enters the first intermediate water tank (3) through the first outlet valve (18) first magnetic valve (19), and draining ratio is 0.6;
5) the second intake pump (20) is started by A
2/ O-SBR part denitrification dephosphorizing reactor (2) water outlet pumps into Anammox sbr reactor device (4) from the first intermediate water tank (3), after water inlet end, opens the second stirring rake (20), anoxia stirring 4h;
6), after Anammox reaction terminates, draining after quiescent setting 30min, draining ratio is 0.6, and after its water outlet enters the second intermediate water tank (5), the water outlet of 50% is back to A through nitrification liquid reflux pump (21)
2/ O-SBR denitrification dephosphorizing reactor (2), for denitrification dephosphorization provides electron acceptor(EA); The water outlet of 50% discharges system from water port (35), and then system enters next cycle, repeats above step;
7) A
2/ O-SBR part denitrification dephosphorizing reactor (2) run time every day spoil disposal, make SRT be 10 ~ 15d, in reactor, sludge concentration maintains within the scope of 3000 ~ 4000mg/L; When Anammox sbr reactor device (4) runs, clean the second intermediate water tank (5) every day, the mud be deposited in bottom it is refunded Anammox sbr reactor device (5), run off to prevent anaerobic ammonium oxidation sludge;
Duration of test, each reactor all adopts synthetic glass to make, and the useful volume of part denitrification dephosphorization sbr reactor device (2) and Anammox sbr reactor device (4) is 10L.Test-results shows: under aforesaid operations step and operating parameter condition, water outlet average COD, NH
4 +-N, TN, TP concentration are respectively 32.84mg/L, 1.18mg/L, 0.69mg/L, 9.02mg/L, 0.12mg/L, all stablize and reach country-level A standard.
Above content is the further description done the present invention in conjunction with concrete experiment embodiment; be convenient to these those skilled in the art understand and apply the invention better; can not think that specific embodiment of the invention is only limited to these and illustrates, therefore the simple modifications done the present invention of these those skilled in the art is all within scope.
Claims (2)
- The testing apparatus of 1.SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, is characterized in that: comprise municipal effluent raw water box (1), A 2/ O-SBR denitrification dephosphorizing reactor (2), the first intermediate water tank (3), Anammox sbr reactor device (4), the second intermediate water tank (5), computer (6), PLC control cabinet (7); Wherein A 2gas meter (9), the first stirring rake (10), aeration head (11), air pump (12), a pH sensor (13), DO sensor (14), a WTW dissolved oxygen meter (15), the first thief hole (16), backflow nitrification liquid water intaking valve (17), the first outlet valve (18), the first magnetic valve (19) is provided with in/O-SBR part denitrification dephosphorizing reactor (2); Anammox sbr reactor device (4) is built-in with the second stirring rake (22), the 2nd pH sensor (23), an ORP sensor (24), the 2nd WTW dissolved oxygen meter (25), the second thief hole (26), the second outlet valve (27), the second magnetic valve (28); Signal converter AD conversion interface (30), signal converter (DA) translation interface (31), aeration rly., the first stirring rly., pH and DO data signal interfaces is provided with in PLC control cabinet (7); Second stirs rly., the 2nd pH and an ORP data signal interfaces;The testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, is characterized in that: municipal effluent raw water box (1) is by the first intake pump (8) and A 2/ O-SBR part denitrification dephosphorizing reactor (2) is connected; A 2/ O-SBR part denitrification dephosphorizing reactor (2) first outlet valve (18) is connected with the first intermediate water tank (3) through the first magnetic valve (19); First intermediate water tank (3) is connected with Anammox sbr reactor device (4) by the second intake pump (20); Anammox sbr reactor device (4) second outlet valve (27) is connected with the second intermediate water tank (5) through the second magnetic valve (28); Second intermediate water tank (5) is by nitrification liquid reflux pump (21) and A 2/ O-SBR part denitrification dephosphorizing reactor (2) nitrification liquid backflow water intaking valve (17) is connected;The testing apparatus of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing, it is characterized in that: the signal converter AD conversion interface (30) in PLC control cabinet (7) is connected with computer (6) by cable, sensor analog signals be converted to digital signal transfers to computer (6), computer (6) is connected with PLC control cabinet (7) by signal converter DA translation interface (31), the digital command of computer (6) is passed to PLC control cabinet (7), and then treatment system is controlled in real time.
- 2. application rights requires the method for device described in 1, it is characterized in that, comprises the following steps:System starts: by denitrification dephosphorization mud and accumulation rate of nitrite nitrogen 70% ~ 80% part denitrification mud, by volume for 1:2 is inoculated into part denitrification dephosphorization A 2/ O-SBR reactor (2), denitrification dephosphorization mud and accumulation rate of nitrite nitrogen are respectively 6000 ~ 8000mg/L, 3000 ~ 4000mg/L in its sludge concentration of part denitrification mud of 70% ~ 80%; Sludge concentration in reactor is made to be 3500mg/L; Inoculation anaerobic ammonium oxidation granular sludge in anaerobic ammonia oxidation reactor (4), sludge concentration in reactor is made to reach 3000 ~ 4000mg/L, when system nitrogen removal rate reaches more than 85%, tp removal rate reaches more than 95%, namely thinks that SBR part denitrification dephosphorization/Anaerobic ammonium oxidation system starts successfully;Periodic duty operation steps is as follows:1) sanitary sewage is added former water tank (1), enter A through the first intake pump (8) 2/ O-SBR part denitrification dephosphorizing reactor (2), intakes than being 0.4 ~ 0.6; After water inlet end, open the first agitator (8), anaerobism stirs 1 ~ 2h, stops stirring when anaerobism stirs when flex point appears in pH value curve;2), after anaerobism terminates, start nitrification liquid reflux pump (21) and Anammox sbr reactor device (4) water outlet of 1/3 ~ 2/3 is back to A from the second intermediate water tank (5) 2/ O-SBR part denitrification dephosphorizing reactor (2), anoxia stirring 1 ~ 2h;3) after hypoxia response terminates, booster air pump (12), by gas meter (9) adjusting gas flow, aeration agitation 1 ~ 1.5h, and be 1.5 ~ 2.0mg/L by on-line monitoring system and feedback control system control DO concentration, then quiescent setting 30min, water outlet enters the first intermediate water tank (3) through the first outlet valve (18) and the first magnetic valve (19), and draining ratio is 0.4 ~ 0.6;4) the second intake pump (20) is started by A 2/ O-SBR part denitrification dephosphorizing reactor (2) water outlet, from the first intermediate water tank (3) suction Anammox sbr reactor device (4), after water inlet end, opens the second stirring rake (20), anoxia stirring 3 ~ 4h;5), after Anammox reaction terminates, draining after quiescent setting 30min, draining ratio is 0.4 ~ 0.6, after its water outlet enters the second intermediate water tank (5), then is back to A through nitrification liquid reflux pump (21) 2/ O-SBR part denitrification dephosphorizing reactor (2) and through water port (32) discharge system, its volume ratio controls 0.5 ~ 2; Then system enters next cycle, repeats above step;A 2/ O-SBR part denitrification dephosphorizing reactor (2) run time every day spoil disposal, make SRT be 10 ~ 15d, in reactor, sludge concentration maintains within the scope of 3000 ~ 4000mg/L; When Anammox sbr reactor device (4) runs, clean the second intermediate water tank (5) every day, the mud be deposited in bottom it is refunded Anammox sbr reactor device (5).
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| CN107032497A (en) * | 2017-06-23 | 2017-08-11 | 长春工程学院 | Stop the SBR advanced nitrogen On-Line Control Methods of nitrification process in advance |
| CN107043164A (en) * | 2017-04-24 | 2017-08-15 | 北京工业大学 | The sewage-treatment plant and method of denitrification dephosphorization series connection integral anaerobic ammoxidation |
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| CN107043164A (en) * | 2017-04-24 | 2017-08-15 | 北京工业大学 | The sewage-treatment plant and method of denitrification dephosphorization series connection integral anaerobic ammoxidation |
| CN107043164B (en) * | 2017-04-24 | 2020-04-03 | 北京工业大学 | Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation |
| CN107032497A (en) * | 2017-06-23 | 2017-08-11 | 长春工程学院 | Stop the SBR advanced nitrogen On-Line Control Methods of nitrification process in advance |
| CN107032497B (en) * | 2017-06-23 | 2019-02-19 | 长春工程学院 | Stop the SBR advanced nitrogen On-Line Control Method of nitrification process in advance |
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