CN105692904A - Method and device for achieving integrated anaerobic ammonia oxidation autotrophic denitrification of urban sewage - Google Patents
Method and device for achieving integrated anaerobic ammonia oxidation autotrophic denitrification of urban sewage Download PDFInfo
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Abstract
The invention provides a method and device for achieving integrated anaerobic ammonia oxidation autotrophic denitrification of urban sewage and relates to the technical field of biological sewage treatment. The device is provided with a urban sanitary sewage raw water tank, a biological carbon and phosphorus removal reactor, a middle water tank and an integrated autotrophic denitrification up-flow reactor. The integrated autotrophic denitrification up-flow reactor mainly contains two types of bacteria, namely ammonia oxidizing bacteria in the form of alum floc and anaerobic ammonium oxidation bacteria attached to filler. Urban sewage enters the biological carbon and phosphorus removal reactor in the first place, and anaerobic phosphorus releasing is conducted in the water feeding process; aeration is conducted after water feeding is completed, organic matter in water is removed through the absorption function of activated sludge, and meanwhile aerobic phosphorus uptake is conducted; then, the sewage continuously enters the integrated autotrophic denitrification up-flow reactor through the middle water tank, intermittent aeration is conducted, and short-range nitration-anaerobic ammonia oxidation is achieved. According to the method and device, an external carbon source is not needed to be fed, floras are separated, nitrogen and phosphorus removal efficiency of a system is guaranteed, and the advantage of saving energy consumption is obvious.
Description
Technical field
The present invention relates to technical field of biological sewage treatment, particularly relate to a kind of system and method realizing municipal sewage integral anaerobic ammoxidation autotrophic denitrification。
Background technology
Nitrogen content is the important indicator of Water-quality control。The aggravation of nitrate pollution is also one of key factor causing the waters wawter blooms such as China lake, river and coastal waters and red tide large-scale outbreak in recent years, therefore causes the extensive concern of people。The ammonia nitrogen removal that conventional waste water processes realizes generally by nitrification and denitrification process, but this process needs a large amount of aerations, additionally adds organic carbon source and basicity, and investment and operating cost are high, but also can produce secondary pollution。Anammox denitrogenation is the new and effective bio-denitrification technology of one grown up the nineties in last century。Anammox reaction path is shorter compared with traditional biological denitrogenation technology, basicity need not compensate and add organic carbon source, thus having saved the substantial amounts of energy and material, saving operating cost, the problems such as the low ratio of carbon to ammonium denitrogenation of waste water faced to China's current sewage disposal interface is difficult, energy consumption is high, sludge yield is big bring dawn。Therefore, attracted the widely studied of Chinese scholars。
Anammox refers to that, under anaerobism or anoxia condition, microorganism is directly with NO2 -For electron acceptor, with NH4 +For electron donor, two kinds of nitrogens being converted into the bioprocesses of nitrogen simultaneously, the energy that this process produces can make anaerobic ammonia oxidizing bacteria under anaerobic survive。Anammox technology is the most economical bio-denitrification technology being currently known, and compared with traditional nitration denitrification technology, has oxygen demand low, and operating cost is low and does not need the advantages such as additional carbon。
Anammox technology is to be currently known most economical bio-denitrification technology, and this is owing to its technical characterstic determines。Reason is in that: 1. in anaerobic ammonium oxidation process, owing to anaerobic ammonia oxidizing bacteria is autotrophic bacteria, and CO2Or carbonate is the inorganic carbon source that its growth is required, so NH4 +The oxidation of-N is without O2Participate in, simultaneously NO2 -The reduction of-N is without organic carbon source, and this will reduce the operating cost of sewage aerobic biological denitrificaion in a large number；2. the rate of increase (doubling time is 11d) of anaerobic ammonia oxidation microbiological and productivity (0.11g [VSS]/g [NH4 +]) it is low-down, therefore sludge yield is low, but the conversion ratio of nitrogen is but 0.25mg [N]/(mg [SS] d), suitable with traditional aerobic nitrification。
But Anammox technology also fails to be used widely in engineering practice at present, main reason is that: the sewage that 1. Anammox technology experiment institute adopts is mostly artificial distribution, there is bigger gap with the water quality of actual sewage；2. react initial operating stage mud at Anammox easily to run off, make enrichment anaerobic ammonia oxidizing bacteria and stable operation comparatively difficult。
Thus, present stage needs one solved technical problem is that: how can propose a kind of effective measures, by integral anaerobic ammoxidation autotrophic denitrification Process for Treating Municipal, Anammox technology is enable to be successfully applied in the city domestic sewage of reality, and Anammox react initial operating stage can more enrichment anaerobic ammonia oxidizing bacteria and stable operation reactor, make mud not easily run off。
Summary of the invention
The technical problem to be solved in the present invention is to provide the system and method for a kind of integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage, de-carbon dephosphorization, short distance nitration, Anammox are applied to actual cities sewage disposal, it is achieved the energy-efficient process of municipal sewage。
In order to solve above-mentioned technical problem, the invention provides the system of a kind of integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage, first pass around biological de-carbon dephosphorizing reactor by sanitary sewage and carry out the removal of Organic substance and phosphorus, it is ensured that the stable operation of follow-up integral anaerobic ammoxidation；Anaerobic ammonia oxidation reactor is placed appropriate biofilm packing, it is ensured that the sludge concentration of anaerobic ammonia oxidizing bacteria。This system includes former water tank, biological de-carbon dephosphorizing reactor, intermediate water tank, integral anaerobic ammoxidation upflow-type reactor and On-line Control thereof and detection system；Wherein, described former water tank is connected by peristaltic pump biology de-carbon dephosphorizing reactor；Biological de-carbon dephosphorizing reactor outlet valve is connected with intermediate water tank by outlet pipe；Intermediate water tank is connected with integral anaerobic ammoxidation upflow-type reactor by peristaltic pump；And with a certain amount of polyethylene biofilm packing in integral anaerobic ammoxidation upflow-type reactor。
A kind of device realizing municipal sewage integral anaerobic ammoxidation autotrophic denitrification, it is characterised in that:
Including the former water tank of municipal sewage, biological de-carbon dephosphorizing reactor, intermediate water tank and integration autotrophic denitrification upflow-type reactor；The former water tank of municipal sewage is connected with biological de-carbon dephosphorizing reactor by peristaltic pump；Described biological de-carbon dephosphorizing reactor is provided with agitator, aeration head, gas flowmeter, aeration pump, water inlet pipe, outlet pipe and outlet valve；Biological de-carbon dephosphorizing reactor outlet valve is connected with intermediate water tank by outlet pipe；Intermediate water tank is connected with integrated autotrophic denitrification upflow-type reactor water inlet pipe by peristaltic pump；Wherein, described integration autotrophic denitrification upflow-type reactor includes water inlet pipe, outlet pipe, three phase separator, exhaustor；Being provided with polyethylene biofilm packing in integration autotrophic denitrification upflow-type reactor, its packing volume ratio is for 30%-40%；Integral anaerobic ammoxidation autotrophic denitrification real-time control system includes pH and DO sensing and analyzer, data signal input and output interface, Inlet and outlet water relay, aeration relay, motor stirrer relay。
Further, described former water tank and intermediate water tank are closed box, are provided with overflow pipe and blow-down pipe。
A kind of method realizing municipal sewage integral anaerobic ammoxidation autotrophic denitrification, its feature comprises the steps:
1) system start-up phase: the residue discharge mud of biological de-carbon dephosphorizing reactor inoculation municipal wastewater treatment plant second pond so that sludge concentration is at 2000-5000mg/L；The short distance nitration mud of integration autotrophic denitrification upflow-type reactor inoculation Treating Municipal Sewage stable operation so that sludge concentration is at 2000-5000mg/L；Take a certain amount of anaerobic ammonium oxidation granular sludge in from the anaerobic ammonia oxidation reactor of stable operation or floc sludge is inoculated, sludge concentration is at 5000-8000mg/L, and in body autotrophic denitrification upflow-type reactor, put into polyethylene biofilm packing carry out biofilm, packing ratio is 30%-40%；As body autotrophic denitrification up-flow water outlet NH4 +-N concentration≤1mg/L or NO2 -When the time of-N concentration≤1mg/L reaches more than 10 days, complete to start；
2) the system operation phase: 1. the method for operation of biological de-carbon dephosphorizing reactor is: limit anaerobism stirring limit water inlet 10-30min, then carry out aerobic aeration 40-60min, to complete the removal of degradable COD in former water；Reaction terminates postprecipitation 30-50min, and draining ratio is for 50%-70%, and sludge age controls at 2-5 days, and Dissolved Oxygen concentration Control is at 0.5-2mg/L, and water outlet enters intermediate water tank；2. the method for operation of integration autotrophic denitrification upflow-type reactor is: intake by intermediate water tank, aeration rate is adjusted by gas rotameter, make Dissolved Oxygen concentration Control at 0.5-1mg/L, control aeration is intermittent aerating, 40-50min is stopped after every aeration 10-20min, stopping 40-50min after starting aeration 10-20min afterwards again, such aeration, stopping move in circles；Integration autotrophic denitrification upflow-type reactor continuous effluent, is discharged by outlet valve；Integration autotrophic denitrification upflow-type reactor hydraulic detention time is 20-40min；
If integration autotrophic denitrification upflow-type reactor reactor water outlet ammonia nitrogen concentration is higher than 5mg/L, system aeration time need to be risen to higher than 20min；When reactor water outlet ammonia nitrogen concentration is again below 5mg/L, then system aeration time is adjusted back to 10-20min。
After system commencement of commercial operation, municipal sewage handling process in this device is: sewage enters former water tank, makes former water enter biological de-carbon dephosphorizing reactor by peristaltic pump, and water inlet limit, limit anaerobism stirs to carry out releasing phosphorus process；Carry out aerobic aeration with artifact de-carbon dephosphorizing reactor, remove the labile organic compound in water and carry out inhaling phosphorus process simultaneously, so that phosphorus is enriched with in mud；The water outlet of biological de-carbon dephosphorizing reactor enters intermediate water tank, and this intermediate water tank plays the effect storing enough water yields for integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor continuum micromeehanics；Former water enters integration autotrophic denitrification upflow-type reactor through peristaltic pump after de-carbon dephosphorization, aeration pump carry out intermittent aerating, controls dissolved oxygen concentration at below 1mg/L, makes ammonia oxidation bacteria in reactor (AOB) by NH4 +-N section short distance nitration is NO2 -While-N, anaerobic ammonia oxidizing bacteria utilizes NH4 +-N and NO2 --N carries out Anammox reaction and generates N2Discharge system。Efficiently removed from sewage by said process Organic substance the most at last, phosphorus and nitrogen。
To sum up, the present invention has the advantage that as follows:
1) system and method for integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage provided by the invention, biological de-carbon dephosphorization, short distance nitration and Anammox are applied in the advanced nitrogen process of sanitary sewage, relative to tradition denitrification process, reduce the aeration rate of more than 60%, simultaneously without adding outer carbon source and nertralizer, simple to operate, nitric efficiency is high。
2) mushroom two kinds different is cultivated respectively according to growth characteristics and sludge age in different systems: heterotrophic bacteria is in biological de-carbon dephosphorizing reactor, autotrophic bacteria and short distance nitration bacterium and anaerobic ammonia oxidizing bacteria are in upflow-type reactor, thus can place it under the best growing condition according to the feature of every kind of mushroom, avoid the sludge age contradiction of denitrogenation and dephosphorization, ensure that the efficient stable of each system runs, it is achieved the advanced nitrogen of municipal sewage。
3) biological de-carbon dephosphorization adopts sbr reactor device, and the method for operation is flexible, good denitrogenation and dephosphorization effect, anti impulsion load, and disposal ability is strong, and can effectively prevent sludge bulking。
4) integral anaerobic ammoxidation denitrogenation adopts upflow-type reactor, sludge concentration is high, disposal ability is strong, and adopt the form of polyethylene biofilm packing to be enriched anaerobic ammonia oxidizing bacteria, it is effectively reduced the loss of anaerobic ammonia oxidizing bacteria, and without mix and blend equipment, LDO intermittent aerating, efficient energy-saving。
5) present invention adopts integral anaerobic ammoxidation autotrophic denitrification technique, without NO, N in denitrification process2The harmful gass such as O generate, environmental protection。
Accompanying drawing explanation
Fig. 1 is the structural representation of present system。
As it can be seen, 1 be the former water tank of sanitary sewage, 2 be biological de-carbon dephosphorizing reactor, 3 be intermediate water tank, 4 integrated Anammox autotrophic denitrification upflow-type reactors；1.1 be the former water tank overflow pipe of sanitary sewage, 1.2 for the former water tank blow-down pipe of sanitary sewage；2.1 be intake pump, 2.2 be stirring paddle, 2.3 be agitator, 2.4 be aeration head, 2.5 be gas rotameter, 2.6 be air pump, 2.7 be pH analyzer, 2.8 be DO analyzer, 2.9 be pH and DO analyzer, 2.10 be atmospheric valve, 2.11 for outlet valve；3.1 be intermediate water tank overflow pipe, 3.2 for intermediate water tank blow-down pipe；4.1 be intake pump, 4.2 be blow-down pipe, 4.3 for three phase separator, 4.4 be exhaustor 4.5 be pH analyzer, 4.6 be DO analyzer, 4.7 be pH and DO analyzer, 4.8 be host computer and display, 4.9 be actuator, 4.10 be operator signals output interface, 4.11 be polyethylene biofilm packing, 4.12 be aeration head, 4.13 be gas rotameter, 4.14 be air pump。
Detailed description of the invention
Below in conjunction with accompanying drawing and application example, the present invention will be further described。
Described integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage system equipment therefor is made up of the former water tank of municipal sewage, biological de-carbon dephosphorizing reactor, intermediate water tank and integration autotrophic denitrification upflow-type reactor and on-line monitoring thereof and feedback system；The former water tank of municipal sewage is provided with former water tank overflow pipe and former water tank blow-down pipe；The former water tank of municipal sewage is connected with biological de-carbon dephosphorizing reactor by peristaltic pump；Biological de-carbon dephosphorizing reactor is provided with air pump, gas rotameter, aeration head, agitator, pH and DO analyzer, reactor blow-down pipe and reactor outlet valve；Biological de-carbon dephosphorizing reactor outlet valve is connected with intermediate water tank by outlet pipe；Intermediate water tank is provided with intermediate water tank overflow pipe, intermediate water tank blow-down pipe；Intermediate water tank is connected with integrated autotrophic denitrification upflow-type reactor water intaking valve by peristaltic pump；Integration autotrophic denitrification upflow-type reactor is provided with air pump, gas rotameter, aeration head, reactor atmospheric valve, polyethylene biofilm packing, pH and DO analyzer and reactor outlet valve；Wherein, polyethylene carrier is diameter is the cellular cylinder material of 1cm, and its packing ratio is 30%-40%。
Municipal sewage in the handling process of this technique is: municipal sewage initially enters biological de-carbon dephosphorizing reactor and completes organic absorption or removal, and carries out the absorption that is released to of phosphorus, water outlet entrance intermediate water tank by anaerobism, aerobic alternation procedure；Intermediate water tank water outlet enters integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor, it is achieved the part short distance nitration of sewage, by the NH in water4 +-N section is converted into NO2 --N, then NH4 +-N、NO2 --N is reacted by the effect generation Anammox of anaerobic ammonia oxidizing bacteria, generates N2Discharge reactor, it is achieved the purpose of domestic sewage advanced denitrogenation。
Treating Municipal Sewage method specifically includes following steps:
1) system start-up phase: the excess sludge taking municipal sewage plant's second pond discharge adds to biological de-carbon dephosphorizing reactor so that sludge concentration MLSS=2000-5000mg/L；The short distance nitration mud of integration autotrophic denitrification upflow-type reactor inoculation Treating Municipal Sewage so that sludge concentration MLSS=5000-10000mg/L；Take a certain amount of anaerobic ammonia oxidizing bacteria in from the anaerobic ammonia oxidation reactor of stable operation to inoculate, sludge concentration is at 5000-8000mg/L, and put into polyethylene biofilm packing and carry out biofilm in integration autotrophic denitrification upflow-type reactor, packing ratio is 30%-40%；As integration autotrophic denitrification upflow-type reactor water outlet NH4 +-N concentration≤1mg/L, or NO2 -When the time of-N concentration≤1mg/L reaches more than 10 days, complete the startup of integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor。
2) the system operation phase: 1. the method for operation of biological de-carbon dephosphorizing reactor is: limit anaerobism stirring limit water inlet 10-30min, then carry out aerobic aeration 40-60min, to complete the removal of degradable COD in former water；Reaction terminates postprecipitation 30-50min, and draining ratio is for 50%-70%, and sludge age controls at 2-5 days, and Dissolved Oxygen concentration Control is at 0.5-2mg/L；As biological de-carbon dephosphorizing reactor water outlet COD≤80mg/L, and Nitrification rate≤5%, during water outlet P≤1mg/L, completing the startup of reactor, water outlet enters intermediate water tank；2. the method for operation of integration autotrophic denitrification upflow-type reactor is: intake by intermediate water tank, aeration rate is adjusted by gas rotameter, make Dissolved Oxygen concentration Control at 0.5-1mg/L, in aeration process, mud and filler are in abundant suspended state, controlling aeration is that interval starts, stopping 40-50min after every aeration 10-20min, stop 40-50min after starting aeration 10-20min afterwards again, such aeration, stopping move in circles。Reactor continuous effluent, is discharged by outlet valve；Reactor hydraulic detention time is 20-40min。
After each reactor successfully starts up, system commencement of commercial operation。Sewage enters former water tank, makes former water enter biological de-carbon dephosphorizing reactor by peristaltic pump, and water inlet limit, limit anaerobism stirs to carry out releasing phosphorus process；Carry out aerobic aeration with artifact de-carbon dephosphorizing reactor, remove the labile organic compound in water and carry out inhaling phosphorus process simultaneously, so that phosphorus is enriched with in mud；The water outlet of biological de-carbon dephosphorizing reactor enters intermediate water tank, and this intermediate water tank plays the effect storing enough water yields for integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor continuum micromeehanics；Former water enters integration autotrophic denitrification upflow-type reactor through peristaltic pump after de-carbon dephosphorization, aeration pump carry out intermittent aerating, controls dissolved oxygen concentration at below 1mg/L, makes ammonia oxidation bacteria in reactor (AOB) by NH4 +-N section short distance nitration is NO2 -While-N, anaerobic ammonia oxidizing bacteria utilizes NH4 +-N and NO2 --N carries out Anammox reaction and generates N2Discharge system。Efficiently removed from sewage by said process Organic substance the most at last, phosphorus and nitrogen。
It is as follows that concrete test water takes from Beijing University of Technology's its water quality of dependents' district sanitary sewage: COD concentration is 120mg/L-250mg/L；NH4 +-N concentration is 50mg/L-90mg/L；NO2 —N concentration < 0.8mg/L；NO3 --N concentration is 0.1mg/L-0.6mg/L；P concentration is 3mg/L-8mg/L。Pilot system is as it is shown in figure 1, biological de-carbon dephosphorizing reactor, integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor all adopt lucite to make, and integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor reaction zone internal diameter is 5cm, and dischargeable capacity is 2L；Biological de-carbon dephosphorizing reactor dischargeable capacity is 10L。
Carrying out practically operation is as follows:
1) excess sludge taking municipal sewage plant's second pond discharge adds to biological de-carbon dephosphorizing reactor so that sludge concentration MLSS=2000-5000mg/L；The short distance nitration mud of integration autotrophic denitrification upflow-type reactor inoculation Treating Municipal Sewage so that sludge concentration MLSS=5000-10000mg/L；Taking a certain amount of anaerobic ammonia oxidizing bacteria in from the anaerobic ammonia oxidation reactor of stable operation to inoculate, sludge concentration is at 5000-8000mg/L, and puts into polyethylene biofilm packing in upflow-type reactor and carry out biofilm, and packing ratio is 30%；As integration autotrophic denitrification upflow-type reactor water outlet NH4 +-N concentration≤1mg/L, or NO2 -When the time of-N concentration≤1mg/L reaches more than 10 days, complete the startup of integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor。2) biological de-carbon dephosphorizing reactor limit anaerobism stirring limit water inlet 20min, then carry out aerobic aeration 40min, to complete the removal of degradable COD in former water；Reaction terminates postprecipitation 30min, and draining ratio is 60%, and sludge age controlled at 2-5 days, and Dissolved Oxygen concentration Control is at 1-2mg/L；After taming 20 days, biological de-carbon dephosphorizing reactor water outlet COD < 80mg/L, and Nitrification rate < 3%, water outlet P < 1mg/L, complete the startup of reactor, water outlet is entered intermediate water tank；
3) integration autotrophic denitrification upflow-type reactor is intake by intermediate water tank, aeration rate is adjusted by gas rotameter, make Dissolved Oxygen concentration Control at 0.5-1mg/L, in aeration process, mud and filler are in abundant suspended state, controlling aeration is that interval starts, stopping 45min after every aeration 15min, stop 40-50min after starting aeration 10-20min afterwards again, such aeration, stopping move in circles。Reactor continuous effluent, is discharged by outlet valve；Reactor hydraulic detention time is 30min。As reactor water outlet NH4 +-N concentration < 1mg/L, NO2 -During-N concentration < 1mg/L, complete the startup of integral anaerobic ammoxidation autotrophic denitrification upflow-type reactor, it is achieved the removal of nitrogen in sewage。
The system and method for the integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage of the present invention can be widely used for municipal sewage and the process of other organic industrial sewages containing ammonia nitrogen。
Above the system and method for integral anaerobic ammoxidation autotrophic denitrification Treating Municipal Sewage provided by the present invention is described in detail, principles of the invention and implementation are set forth by specific case used herein, and the explanation of above example is only intended to help and understands the present invention and core concept thereof；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention。
Claims (3)
1. the device realizing municipal sewage integral anaerobic ammoxidation autotrophic denitrification, it is characterised in that:
Including the former water tank of municipal sewage, biological de-carbon dephosphorizing reactor, intermediate water tank and integration autotrophic denitrification upflow-type reactor；The former water tank of municipal sewage is connected with biological de-carbon dephosphorizing reactor by peristaltic pump；Described biological de-carbon dephosphorizing reactor is provided with agitator, aeration head, gas flowmeter, aeration pump, water inlet pipe, outlet pipe and outlet valve；Biological de-carbon dephosphorizing reactor outlet valve is connected with intermediate water tank by outlet pipe；Intermediate water tank is connected with integrated autotrophic denitrification upflow-type reactor water inlet pipe by peristaltic pump；Wherein, described integration autotrophic denitrification upflow-type reactor includes water inlet pipe, outlet pipe, three phase separator, exhaustor；Being provided with polyethylene biofilm packing in integration autotrophic denitrification upflow-type reactor, its packing volume ratio is for 30%-40%；Integral anaerobic ammoxidation autotrophic denitrification real-time control system includes pH and DO sensing and analyzer, data signal input and output interface, Inlet and outlet water relay, aeration relay, motor stirrer relay。
2. device according to claim 1, it is characterised in that described former water tank and intermediate water tank are closed box, are provided with overflow pipe and blow-down pipe。
3. the method applying device as claimed in claim 1, its feature comprises the steps:
1) system start-up phase: the residue discharge mud of biological de-carbon dephosphorizing reactor inoculation municipal wastewater treatment plant second pond so that sludge concentration is at 2000-5000mg/L；The short distance nitration mud of integration autotrophic denitrification upflow-type reactor inoculation Treating Municipal Sewage stable operation so that sludge concentration is at 2000-5000mg/L；Take a certain amount of anaerobic ammonium oxidation granular sludge in from the anaerobic ammonia oxidation reactor of stable operation or floc sludge is inoculated, sludge concentration is at 5000-8000mg/L, and in body autotrophic denitrification upflow-type reactor, put into polyethylene biofilm packing carry out biofilm, packing ratio is 30%-40%；As body autotrophic denitrification up-flow water outlet NH4 +-N concentration≤1mg/L or NO2 -When the time of-N concentration≤1mg/L reaches more than 10 days, complete to start；
2) the system operation phase: 1. the method for operation of biological de-carbon dephosphorizing reactor is: limit anaerobism stirring limit water inlet 10-30min, then carry out aerobic aeration 40-60min, to complete the removal of degradable COD in former water；Reaction terminates postprecipitation 30-50min, and draining ratio is for 50%-70%, and sludge age controls at 2-5 days, and Dissolved Oxygen concentration Control is at 0.5-2mg/L, and water outlet enters intermediate water tank；2. the method for operation of integration autotrophic denitrification upflow-type reactor is: intake by intermediate water tank, aeration rate is adjusted by gas rotameter, make Dissolved Oxygen concentration Control at 0.5-1mg/L, control aeration is intermittent aerating, 40-50min is stopped after every aeration 10-20min, stopping 40-50min after starting aeration 10-20min afterwards again, such aeration, stopping move in circles；Integration autotrophic denitrification upflow-type reactor continuous effluent, is discharged by outlet valve；Integration autotrophic denitrification upflow-type reactor hydraulic detention time is 20-40min；
If integration autotrophic denitrification upflow-type reactor reactor water outlet ammonia nitrogen concentration is higher than 5mg/L, system aeration time need to be risen to higher than 20min；When reactor water outlet ammonia nitrogen concentration is again below 5mg/L, then system aeration time is adjusted back to 10-20min。
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| CN106115920A (en) * | 2016-08-31 | 2016-11-16 | 北京工业大学 | Fermented sludge is utilized to realize municipal sewage part short distance nitration and the method and apparatus of Anammox |
| CN107162194A (en) * | 2017-06-30 | 2017-09-15 | 青岛大学 | It is a kind of while realizing the apparatus and method that municipal sewage treatment and phosphorus are reclaimed |
| CN107857364A (en) * | 2017-11-10 | 2018-03-30 | 河南师范大学 | A kind of biological denitrificaion sewage-treatment plant and its quick start method |
| CN108408897A (en) * | 2018-03-13 | 2018-08-17 | 北京工业大学 | The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously |
| CN109824145A (en) * | 2019-03-06 | 2019-05-31 | 北京工业大学 | Regulation Bacterial community fast implements the apparatus and method of sanitary sewage autotrophic denitrification |
| CN110395851A (en) * | 2019-08-24 | 2019-11-01 | 东南大学 | High aititude urban wastewater treatment method based on nitrogen phosphorus capture and whole process autotrophic denitrification |
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| CN114212887A (en) * | 2021-12-16 | 2022-03-22 | 北京工业大学 | System and method for realizing integrated autotrophic nitrogen removal operation of low-ammonia-nitrogen wastewater |
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| CN114212887A (en) * | 2021-12-16 | 2022-03-22 | 北京工业大学 | System and method for realizing integrated autotrophic nitrogen removal operation of low-ammonia-nitrogen wastewater |
| CN114212887B (en) * | 2021-12-16 | 2023-11-24 | 北京工业大学 | System and method for realizing low ammonia nitrogen wastewater integrated autotrophic denitrification operation |
| CN114538599A (en) * | 2022-02-18 | 2022-05-27 | 广州大学 | Photoinduction device for realizing autotrophic nitrogen removal and synchronous phosphorus removal of municipal sewage |
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Effective date of registration: 20200819 Address after: 705 Fuhai international port, Haidian District, Beijing 100079 Patentee after: BEIJING TANSI ENVIRONMENTAL PROTECTION TECHNOLOGYCO., Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |