CN107043164B - Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation - Google Patents

Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation Download PDF

Info

Publication number
CN107043164B
CN107043164B CN201710269314.5A CN201710269314A CN107043164B CN 107043164 B CN107043164 B CN 107043164B CN 201710269314 A CN201710269314 A CN 201710269314A CN 107043164 B CN107043164 B CN 107043164B
Authority
CN
China
Prior art keywords
reactor
ammonia oxidation
sbr
water
anaerobic ammonia
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710269314.5A
Other languages
Chinese (zh)
Other versions
CN107043164A (en
Inventor
彭永臻
苏文涛
李夕耀
张琼
王淑莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Technology
Original Assignee
Beijing University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201710269314.5A priority Critical patent/CN107043164B/en
Publication of CN107043164A publication Critical patent/CN107043164A/en
Application granted granted Critical
Publication of CN107043164B publication Critical patent/CN107043164B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

A denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation sewage treatment device and a method belong to the field of sewage treatment. The urban sewage firstly enters A2An O-SBR reactor, wherein DPAOs (denitrifying phosphorus removal bacteria) utilize organic carbon sources in domestic sewage to carry out anaerobic phosphorus release and store an internal carbon source PHA; after the anaerobic phosphorus release is finished, all the domestic sewage is discharged into a first intermediate water tank, the treated sewage rich in ammonia nitrogen is pumped into an integrated anaerobic ammonia oxidation SBBR reactor through a peristaltic pump, the short-range nitrification anaerobic ammonia oxidation is carried out through low-oxygen aeration, after the reaction is finished, the domestic sewage containing nitrate nitrogen is discharged into a second intermediate water tank, and the treated sewage containing nitrate nitrogen flows back to A through the peristaltic action2In the O-SBR reactor, the DPAOs take PHAs stored in an anaerobic section as an electron donor and nitrate nitrogen in reflux liquid as an electron acceptor to perform anoxic denitrification phosphorus absorption; after the anoxic reaction is finished, short-time aeration is carried out, then sedimentation is carried out, and finally water is drained. The invention needs no additional external carbon source, and almost reaches zero emission of nitrogen and phosphorus after the system is stable.

Description

Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation
Technical Field
The invention relates to a denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation sewage treatment method and device, belongs to the technical field of biological sewage treatment, and relates to a test device and method for strengthening synchronous denitrification and dephosphorization of low-C/N urban domestic sewage.
Background
Along with the improvement of economic development and the living standard of people, the discharge amount of urban domestic sewage is increased year by year, and the eutrophication phenomenon of a water body caused by a large amount of nutrient elements such as nitrogen and phosphorus in the urban domestic sewage is more and more serious, so that the sense of the water body is seriously influenced and the sewage treatment cost is increased. The eutrophication of water body caused by nitrogen and phosphorus elements has become a global problem. In order to solve the problem, people set more and more strict sewage discharge standards, and people continuously improve sewage treatment processes.
The denitrification dephosphorization represents the latest theory and technology in the field of the current sewage denitrification dephosphorization, the denitrification and the phosphorus absorption are simultaneously realized in a one-carbon dual-purpose mode by utilizing the internal carbon source PHA, the proposal of the two theories breaks through the traditional biological denitrification dephosphorization theory, the unstable problem of nitrogen and phosphorus removal caused by insufficient carbon source in the traditional process can be well solved, the biological denitrification dephosphorization mechanism is a great breakthrough and leap, and a new field is opened up for the development of the biological denitrification dephosphorization process. Compared with the traditional nitrogen and phosphorus removal process, the method saves 50 percent of carbon source, 30 percent of aeration quantity and 50 percent of sludge yield. Therefore, the denitrification dephosphorization and denitrification process is an effective method for realizing stable standard of denitrification and dephosphorization of the sewage treatment plant and can be regarded as a sustainable development process.
The integrated anaerobic ammonia oxidation organically combines the shortcut nitrification technology with the anaerobic ammonia oxidation technology, realizes the shortest and efficient path for converting ammonia nitrogen into nitrogen, does not need an organic carbon source, saves the organic carbon source and saves the aeration quantity. By adopting the integrated anaerobic ammonia oxidation reactor, anaerobic ammonia oxidizing bacteria exist in the form of granular sludge, short-cut nitrification sludge exists in the form of floc sludge, biological phase separation is realized, an alternate operation mode of low-oxygen aeration stirring and oxygen-poor stirring is adopted, and alkalinity generated by anaerobic ammonia oxidation effectively compensates alkalinity consumed by short-cut nitrification, so that stable short-cut nitrification and anaerobic ammonia oxidation are favorably realized.
The denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation process is used for treating the urban domestic sewage with the low carbon-nitrogen ratio, is a new denitrification dephosphorization idea, shortens the denitrification dephosphorization process when being used for treating the urban sewage with the carbon, nitrogen and phosphorus ratio being imbalanced and the carbon source being lower, has simple process flow, obviously improves the denitrification dephosphorization effect, greatly reduces the nitrogen and phosphorus concentration of effluent water, and realizes the high-efficiency and low-energy-consumption denitrification dephosphorization.
Disclosure of Invention
The invention provides a set of denitrification dephosphorization series connection integrated anaerobic ammonia oxidation test device and a method aiming at the problem of low C/N ratio of municipal sewage on the basis of not adding an external carbon source, and is a novel synchronous denitrification dephosphorization process combining denitrification dephosphorization, partial nitrification and anaerobic ammonia oxidation technologies. The process carries out biological phase separation, separates denitrifying phosphorus removal bacteria from nitrosobacteria and anaerobic ammonium oxidation bacteria, fully utilizes organic matters in raw water to carry out anaerobic phosphorus release and PHA storage, then reflows anaerobic ammonium oxidation autotrophic denitrification effluent to a denitrifying phosphorus removal reactor to carry out denitrifying phosphorus absorption, and simultaneously carries out aeration appropriately to ensure the phosphorus removal effect so as to realize the deep removal of nitrogen and phosphorus.
In order to achieve the efficient synchronous denitrification and dephosphorization effect, the denitrification and dephosphorization series connection integrated anaerobic ammonia oxidation test device adopted by the invention is characterized by mainly comprising a municipal sewage raw water tank (1) and an A2The system comprises an O-SBR denitrifying phosphorus removal reactor (3), a first water inlet pump (2), a first intermediate water tank (14), an integrated anaerobic ammonia oxidation SBBR reactor (23), a second intermediate water tank (15) and a real-time control box (13); wherein A is2A first gas flow meter (4), a first stirring paddle (6), a first aeration head (25), a first air pump (5), a first pH sensor (7), a first DO sensor (8), a first WTW dissolved oxygen meter (9), a first drain valve (28), a reflux water inlet valve (27), a reflux water inlet pump (10), a first water outlet valve (28), a first electromagnetic valve (11), a third drain valve (29) and a third drain electromagnetic valve (12) are arranged in the O-SBR denitrifying dephosphatation reactor (3); a second gas flow meter (20), a second water inlet pump (17), a second stirring paddle (24), a second aeration head (26), a second air pump (19), a second pH sensor (21), a second DO sensor (22), a second WTW dissolved oxygen meter (18), a second water outlet valve (30) and a second electromagnetic valve (16) are arranged in the integrated anaerobic ammonia oxidation SBBR reactor (23); wherein the real-time control platform mainly executes the control of stirring, the control of aeration time, the switch of water inlet and outlet and other commands.
The denitrification dephosphorization series connection integrated anaerobic ammonia oxidation test device is characterized in that: the urban sewage original water tank (1) is communicated with A through a first water inlet pump (2)2The O-SBR denitrifying phosphorus removal reactor (3) is connected; a. the2A first water outlet valve (28) of the O-SBR denitrifying dephosphatation reactor (3) is connected with a first intermediate water tank (14) through a first electromagnetic valve (11); the first intermediate water tank (14) is connected with the integrated anaerobic ammonia oxidation SBR reactor (23) through a second water inlet pump (17); the second water outlet valve (30) of the integrated anaerobic ammonia oxidation SBBR reactor (23) passes through a second electromagnetic valve (1)6) Is connected with a second intermediate water tank (15); the second intermediate water tank (15) is communicated with A through a nitrifying liquid reflux pump (10)2The nitrification liquid reflux water inlet valve (27) of the O-SBR denitrification dephosphorization reactor (1) is connected.
The invention also provides a denitrification dephosphorization series connection integrated anaerobic ammonia oxidation test method, which is characterized by comprising the following steps:
and (3) starting a system: in A2Inoculating denitrifying phosphorus removal sludge into an O-SBR denitrifying phosphorus removal reactor (3), mixing shortcut nitrification floc sludge and anaerobic ammonium oxidation granular sludge according to the volume ratio of 2:1, wherein the sludge concentrations of the shortcut nitrification floc sludge and the anaerobic ammonium oxidation granular sludge are 3000-3500 mg/L and 3000-4000 mg/L respectively, and simultaneously inoculating into an integrated anaerobic ammonium oxidation reactor (23), and performing filler film hanging on the mixed sludge, wherein the filler filling rate is 50%, so that the sludge concentration in the reactor reaches 4000-5000 mg/L; at this stage, the domestic sewage first enters A2Performing organic matter degradation and anaerobic phosphorus release by the O-SBR, removing organic matters and phosphorus, taking effluent rich in ammonia nitrogen as inlet water of an integrated anaerobic ammonia oxidation reactor SBBR, performing short-cut nitrification and anaerobic ammonia oxidation to finish autotrophic nitrogen removal, and after the reaction is finished, allowing the effluent containing part of nitrate nitrogen to enter A2Denitrifying phosphorus absorption is carried out in the O-SBR, and finally, the rest phosphorus is absorbed in the aeration. When the total nitrogen removal rate of the system reaches more than 85 percent, the phosphorus removal rate reaches more than 95 percent and is stably maintained for more than 60 days, the denitrification dephosphorization series connection integrated anaerobic ammonia oxidation system is considered to be successfully started;
after the system is successfully started, the operation steps of periodic operation are as follows:
1) domestic sewage is added into a raw water tank (1) and pumped into a tank A through a first water inlet pump (2)2The O-SBR denitrifying phosphorus removal reactor (3) is started after water feeding is finished, and a first stirrer (6) is stirred for 2-4 hours in an anaerobic mode;
2) after the anaerobic phosphorus release is finished, standing and precipitating for 30min for water discharge with the water discharge ratio of 60-70 percent, and discharging the domestic sewage rich in ammonia nitrogen into a first intermediate water tank (14) through a first water discharge valve (28). A. the2Discharging sludge every day when the O-SBR denitrifying phosphorus removal reactor (3) operates to ensure that the SRT is 16-20 d, and the sludge in the reactorThe concentration is maintained at 3000-4000 mg/L;
3) starting a second water inlet pump (17) to pump A2The effluent of the O-SBR denitrifying phosphorus removal reactor (3) is pumped into an integrated anaerobic ammonia oxidation SBBR reactor (23) from a first intermediate water tank (14), after the water inlet is finished, starting a second air pump (19) and a second stirring paddle (24), aerating and stirring for 0.5-1 h in low oxygen, the aeration rate is adjusted through a second gas flowmeter (20), the DO concentration in the integrated anaerobic ammonia oxidation SBBR reactor (23) is controlled to be 0.3-0.5 mg/L through a second pH sensor (21) and a second DO sensor (22) for monitoring and a real-time control platform (13), then stirring for 0.5-1 h under oxygen deficiency, then stirring for 0.5-1 h under aeration according to the low oxygen (0.3-0.5 mg/L) and stirring for 0.5-1 h under oxygen deficiency in turn, stopping aeration stirring when the pH value curve of the hypoxia (0.3-0.5 mg/L) aeration stirring has an inflection point, and then stirring for 0.5h in the absence of oxygen;
4) after the anaerobic ammonia oxidation reaction is finished, standing and precipitating for 30min for water discharge with the water discharge ratio of 60-70 percent, and refluxing the discharged water into the A through a reflux liquid inlet pump (10) after the discharged water is discharged into a second intermediate water tank (15)2The O-SBR denitrifying phosphorus removal reactor (3) provides an electron acceptor for denitrifying phosphorus removal, and the DPAOS performs anoxic denitrifying phosphorus absorption reaction by taking the refluxed nitrate nitrogen as the electron acceptor and taking the PHA stored in the anaerobic section as an electron donor;
5) after the anoxic reaction is finished, starting the air pump (5), adjusting the gas flow through the gas flowmeter (4), carrying out aeration stirring for 0.5-1 h, controlling the DO concentration to be 1.5-2.0 mg/L through the online monitoring system and the feedback control system, then standing and precipitating for 30min, discharging effluent through a third water outlet valve (29) and a third electromagnetic valve (12) to a system, wherein the water discharge ratio is 60-70%. And then the system enters the next period and repeats the steps.
Compared with the traditional biological nitrogen and phosphorus removal process, the denitrification and phosphorus removal series connection integrated anaerobic ammonia oxidation test device and the method have the following advantages:
1) the process flow is simple, the controllability is strong, and the effluent quality is stable;
2) the organic carbon source in the raw water is utilized to the maximum extent, and the denitrification dephosphorization is carried out with one-carbon dual-purpose, so that the carbon source is greatly saved, the contradiction and competition of the phosphorus removal bacteria and the denitrification bacteria in the aspect of the carbon source are essentially solved, and the method is suitable for treating the urban domestic sewage with the low C/N ratio;
3) creates respective optimal growth environments of the phosphorus removal bacteria and the denitrification bacteria, and solves the contradiction and competition of the phosphorus removal bacteria and the denitrification bacteria in the aspects of dissolved oxygen, sludge age and the like;
4) the biological separation technology is adopted, so that the nitrogen and phosphorus removal efficiency and the operation stability of the system are easier to maintain;
5) the yield of the sludge is low, and the treatment cost of the excess sludge is reduced;
6) the shortcut nitrification and the anaerobic ammonia oxidation technology are organically combined to carry out autotrophic denitrification, so that a carbon source is saved to the maximum extent, the aeration quantity is saved, the shortest and efficient path for converting ammonia nitrogen into nitrogen is realized, and the emission and running cost of greenhouse gas in the sewage treatment process are reduced;
description of the drawings:
FIG. 1 is a schematic structural diagram of a denitrification dephosphorization series connection integrated anaerobic ammonia oxidation test device and method.
In fig. 1: 1-city sewage raw water tank; 2-a first water inlet pump; 3-A2An O-SBR denitrifying dephosphatation reactor; 4-a first gas flow meter; 5-a first air pump; 6-a first stirring paddle; 7-a first pH sensor; 8-first DO sensor; 9-a first WTW dissolved oxygen meter; 10-reflux liquid inlet pump; 11-a first solenoid valve; 12-a third drain solenoid valve; 13-a real-time control box; 14-a first intermediate water tank; 15-a second intermediate water tank; 16-a second solenoid valve; 17-a second water inlet pump; 18-a second WTW dissolved oxygen meter; 19-a second air pump; 20-a second gas flow meter; 21-a second pH sensor; 22-second DO sensor; 23-an integrated anaerobic ammonia oxidation SBBR reactor; 24-a second stirring paddle; 25-a first aeration head; 26-a second aeration head; 27-reflux inlet valve; 28-a first drain valve; 29-a third drain valve; 30-second drain valve
The specific implementation mode is as follows:
the invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in FIG. 1, the denitrification phosphorus removal series integrated anaerobic ammonia oxidation test device mainly comprises: cityA sewage original water tank (1), a first water inlet pump (2) and A2The device comprises an O-SBR denitrifying phosphorus removal reactor (3), a first gas flow meter (4), a first air pump (5), a first stirring paddle (6) and a first pH sensor (7); wherein A is2A first gas flow meter (4), a first stirring paddle (6), a first aeration head (25), a first air pump (5), a first pH sensor (7), a first DO sensor (8), a first WTW dissolved oxygen meter (9), a reflux liquid inlet valve (27), a first water outlet valve (28) and a first electromagnetic valve (11) are arranged in the O-SBR denitrifying phosphorus removal reactor (3); a second gas flow meter (20), a second stirring paddle (24), a second aeration head (26), a second air pump (19), a second pH sensor (21), a second DO sensor (22), a second WTW dissolved oxygen meter (18), a second water outlet valve (30) and a second electromagnetic valve (16) are arranged in the integrated anaerobic ammonia oxidation SBBR reactor (23);
the domestic sewage of a family area of a college in Beijing is taken as a treatment object, and the nitrogen and phosphorus removal performance of the system is investigated.
The specific operation steps and process parameters are as follows:
1) and (3) starting a system: in A2Inoculating denitrifying phosphorus removal sludge into an O-SBR denitrifying phosphorus removal reactor (3), simultaneously inoculating shortcut nitrification floc sludge and anaerobic ammonium oxidation granular sludge into an integrated anaerobic ammonium oxidation reactor (23) according to the volume ratio of 2:1 (the sludge concentration is 3000-3500 mg/L and 3000-4000 mg/L respectively), and adding a filler into the reactor to form a film, wherein the filling ratio is 50%, so that the sludge concentration in the reactor reaches 4800 mg/L; at this stage, the domestic sewage first enters A2And (2) degrading organic matters and absorbing phosphorus anaerobically by using the O-SBR, removing the organic matters and phosphorus, taking the effluent rich in ammonia nitrogen as the inlet water of the integrated anaerobic ammonia oxidation reactor SBBR, carrying out shortcut nitrification and anaerobic ammonia oxidation, completing autotrophic nitrogen removal, precipitating and draining water after the reaction is finished, and considering that the denitrification phosphorus removal series-connection integrated anaerobic ammonia oxidation system is started successfully when the total nitrogen removal rate of the system reaches more than 85 percent and the phosphorus removal rate reaches more than 95 percent and is stably maintained for more than 60 days.
2) After the system is successfully started, the operation steps of the periodic operation are as follows:
starting a first water inlet pump (2) to pump 4L of domestic sewage from a raw water tank (1)Into A2The O-SBR denitrifying phosphorus removal reactor (3) is started after water feeding is finished, the first stirrer (6) is stirred for 3 hours in an anaerobic mode, the DPAOs fully utilize VFAs in raw water to synthesize inner carbon source PHAs, and phosphorus is released;
after the anaerobic phosphorus release is finished, standing and precipitating for 30min for water drainage, and draining the domestic sewage rich in ammonia nitrogen into a first intermediate water tank (14) through a first drain valve (28), wherein the drainage ratio is 60-70%. A. the2Discharging sludge every day when the O-SBR denitrifying phosphorus removal reactor (3) operates, so that the SRT is 16-20 d, and the sludge concentration in the reactor is maintained at 3000-4000 mg/L;
starting a second water inlet pump (17) to pump A2The effluent of the O-SBR denitrifying phosphorus removal reactor (3) is pumped into an integrated anaerobic ammonia oxidation SBBR reactor (23) from a first intermediate water tank (14), after the water inlet is finished, starting a second air pump (19) and a second stirring paddle (24), aerating and stirring for 0.5-1 h in low oxygen, the aeration rate is adjusted through a second gas flowmeter (20), the DO concentration in the integrated anaerobic ammonia oxidation SBBR reactor (23) is controlled to be 0.3-0.5 mg/L through a second pH sensor (21) and a second DO sensor (22) for monitoring and a real-time control platform (13), then stirring for 0.5-1 h under oxygen deficiency, then stirring for 0.5-1 h under aeration according to the low oxygen (0.3-0.5 mg/L) and stirring for 0.5-1 h under oxygen deficiency in turn, stopping aeration stirring when the pH value curve of the hypoxia (0.3-0.5 mg/L) aeration stirring has an inflection point, and then stirring for 0.5h in the absence of oxygen;
after the anaerobic ammonia oxidation reaction is finished, standing and precipitating for 30min for water discharge with the water discharge ratio of 60-70 percent, and refluxing the discharged water into the A through a reflux liquid inlet pump (10) after the discharged water is discharged into a second intermediate water tank (15)2The O-SBR denitrifying phosphorus removal reactor (3) provides an electron acceptor for denitrifying phosphorus removal, and the DPAOs perform anoxic denitrifying phosphorus removal reaction by taking the refluxed nitrate nitrogen as the electron acceptor and PHAs stored in an anaerobic section as an electron donor;
after the anoxic reaction is finished, starting the air pump (5), adjusting the gas flow through the gas flowmeter (4), carrying out aeration stirring for 0.5-1 h, controlling the DO concentration to be 1.5-2.0 mg/L through the online monitoring system and the feedback control system, then standing and precipitating for 30min, discharging effluent through a third water outlet valve (29) and a third electromagnetic valve (12) to a system, wherein the water discharge ratio is 60-70%. And the system enters the next cycle.
During the test, all reactors are made of organic glass, the effective volumes of the denitrification dephosphorization SBR reactor (3) and the integrated anaerobic ammonia oxidation SBBR reactor (23) are both 10L, and the water quality (average value) of inlet and outlet water is shown in the table 1:
TABLE 1 Water quality of the inlet and outlet water during the experiment (average value)
Figure GDA0001328956940000071
As can be seen from Table 1, under the above-mentioned operation steps and parameters, the COD and NH of the feed water4Average removal rates of-N, TN and TP are respectively as high as 90.2%, 99.5%, 89.3% and 98.3%, and COD and NH of effluent are stable after operation4The concentrations of-N, TN and TP all stably reach the national first-class A standard.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific experimental embodiments thereof, which will enable those skilled in the art to better understand and utilize the present invention, and it is not intended that the present invention be limited to the specific embodiments thereof, since modifications thereof will readily occur to those skilled in the art and are, therefore, within the scope of the present invention.

Claims (1)

1. The sewage treatment method of denitrification dephosphorization series integrated anaerobic ammonia oxidation is characterized in that the applied device comprises a municipal sewage raw water tank (1) and an A2The system comprises an O-SBR denitrifying phosphorus removal reactor (3), a first water inlet pump (2), a first intermediate water tank (14), an integrated anaerobic ammonia oxidation SBBR reactor (23), a second intermediate water tank (15) and a real-time control box (13); wherein A is2A first gas flow meter (4), a first stirring paddle (6), a first aeration head (25), a first air pump (5), a first pH sensor (7), a first DO sensor (8), a first WTW dissolved oxygen meter (9), a first drain valve (28), a reflux water inlet valve (27), a reflux water inlet pump (10), a first drain valve (28), a first electromagnetic valve (11), a third drain valve (29) and a third drain electromagnetic valve (12) are arranged in the O-SBR denitrifying dephosphatation reactor (3); the integrated anaerobic ammonia oxidation SBBR (anaerobic sequencing batch reactor) is internally provided with a second gas flowmeter (20) and a second water inlet pump(17) The device comprises a first stirring paddle (24), a first aeration head (26), a first air pump (19), a first pH sensor (21), a first DO sensor (22), a first WTW dissolved oxygen meter (18), a first drain valve (30) and a first electromagnetic valve (16); wherein the real-time control platform executes the control of stirring, the control of aeration time and the switching of water inlet and outlet;
the denitrification dephosphorization series integrated anaerobic ammonia oxidation sewage treatment device is characterized in that: the urban sewage original water tank (1) is communicated with A through a first water inlet pump (2)2The O-SBR denitrifying phosphorus removal reactor (3) is connected; a. the2A first water outlet valve (28) of the O-SBR denitrifying dephosphatation reactor (3) is connected with a first intermediate water tank (14) through a first electromagnetic valve (11); the first intermediate water tank (14) is connected with the integrated anaerobic ammonia oxidation SBBR reactor (23) through a second water inlet pump (17); a second water outlet valve (30) of the integrated anaerobic ammonia oxidation SBBR reactor (23) is connected with a second middle water tank (15) through a second electromagnetic valve (16); the second intermediate water tank (15) is communicated with A through a nitrifying liquid reflux pump (10)2A nitrifying liquid reflux water inlet valve (27) of the O-SBR denitrifying dephosphatation reactor (1) is connected;
and (3) starting a system: in A2Inoculating denitrifying phosphorus removal sludge into an O-SBR denitrifying phosphorus removal reactor (3), inoculating shortcut nitrification floc sludge and anaerobic ammonium oxidation granular sludge, wherein the sludge concentrations of the shortcut nitrification floc sludge and the anaerobic ammonium oxidation granular sludge are 3000-3500 mg/L and 3000-4000 mg/L respectively, simultaneously inoculating into an integrated anaerobic ammonium oxidation reactor (23), and mixing sludge to carry out filler film hanging, wherein the filler filling rate is 50%, so that the sludge concentration in the reactor reaches 4000-5000 mg/L; at this stage, the simulated domestic sewage firstly enters the A2The O-SBR denitrifying phosphorus removal reactor carries out degradation of organic matters and anaerobic phosphorus release, the effluent water which is removed of the organic matters and phosphorus and rich in ammonia nitrogen is used as the inlet water of the integrated anaerobic ammonia oxidation SBBR reactor to carry out shortcut nitrification and anaerobic ammonia oxidation, autotrophic nitrogen removal is completed, and after the reaction is finished, the effluent water containing partial nitrate nitrogen enters the A2Denitrifying phosphorus absorption is carried out in an O-SBR denitrifying phosphorus removal reactor, and finally, residual phosphorus is absorbed by aeration; when the total nitrogen removal rate of the system reaches more than 85 percent, the phosphorus removal rate reaches more than 95 percent and is stably maintained for more than 60 days, the denitrification dephosphorization is considered to be connected in seriesThe integrated anaerobic ammonia oxidation system is successfully started;
after the system is started successfully, the periodic operation steps are as follows:
1) domestic sewage is added into a raw water tank (1) and pumped into a tank A through a first water inlet pump (2)2The O-SBR denitrifying phosphorus removal reactor (3) is started after water feeding is finished, and a first stirrer (6) is stirred for 2-4 hours in an anaerobic mode;
2) after the anaerobic phosphorus release is finished, standing and precipitating for 30min for water discharge with the water discharge ratio of 60-70 percent, and discharging the treated sewage rich in ammonia nitrogen into a first intermediate water tank (14) through a first water discharge valve (28); a. the2Discharging sludge every day when the O-SBR denitrifying phosphorus removal reactor (3) operates to ensure that the SRT is 16-20 d, A2The sludge concentration in the O-SBR denitrification dephosphorization reactor is maintained at 3000-4000 mg/L;
3) starting a second water inlet pump (17) to pump A2The effluent of the O-SBR denitrifying phosphorus removal reactor (3) is pumped into an integrated anaerobic ammonia oxidation SBBR reactor (23) from a first intermediate water tank (14), after the water inlet is finished, starting a second air pump (19) and a second stirring paddle (24), aerating and stirring for 0.5-1 h in low oxygen, the aeration rate is adjusted through a second gas flowmeter (20), the DO concentration in the integrated anaerobic ammonia oxidation SBBR reactor (23) is controlled to be 0.3-0.5 mg/L through a second pH sensor (21) and a second DO sensor (22) for monitoring and a real-time control platform (13), then stirring for 0.5-1 h under oxygen deficiency, then performing aeration stirring for 0.5-1 h and stirring for 0.5-1 h under oxygen deficiency in sequence according to the oxygen concentration of 0.3-0.5 mg/L, stopping aeration stirring when the oxygen concentration is 0.3-0.5 mg/L and the pH value curve of the aeration stirring has an inflection point, and then stirring for 0.5h in an anoxic way;
4) after the integrated anaerobic ammonia oxidation reaction is finished, standing and precipitating for 30min for water discharge with the water discharge ratio of 60-70 percent, and refluxing the discharged water into the A through a reflux liquid inlet pump (10) after the discharged water is discharged into a second intermediate water tank (15)2An O-SBR denitrifying phosphorus removal reactor (3);
5) after the anoxic reaction is finished, starting an air pump (5), adjusting the gas flow through a gas flowmeter (4), carrying out aeration stirring for 0.5-1 h, controlling the DO concentration to be 1.5-2.0 mg/L through an online monitoring system and a feedback control system, then precipitating for 30min, discharging effluent through a third drain valve (29) and a third electromagnetic valve (12) to be discharged out of the system, wherein the water discharge ratio is 60% -70%, and then, the system enters the next period, and repeating the steps 1) -5.
CN201710269314.5A 2017-04-24 2017-04-24 Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation Active CN107043164B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710269314.5A CN107043164B (en) 2017-04-24 2017-04-24 Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710269314.5A CN107043164B (en) 2017-04-24 2017-04-24 Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation

Publications (2)

Publication Number Publication Date
CN107043164A CN107043164A (en) 2017-08-15
CN107043164B true CN107043164B (en) 2020-04-03

Family

ID=59544960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710269314.5A Active CN107043164B (en) 2017-04-24 2017-04-24 Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation

Country Status (1)

Country Link
CN (1) CN107043164B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107973409A (en) * 2017-12-29 2018-05-01 北京工业大学 Aerobic organic matter migration is used for endogenous denitrification coupling Anammox two-part deep denitrogenation device and method
CN109110924A (en) * 2018-09-26 2019-01-01 上海力脉环保设备有限公司 A kind of simultaneous phosphorus and nitrogen removal sbr reactor device
CN111087075A (en) * 2020-02-19 2020-05-01 青岛理工大学 Aerobic granular sludge coupling one-stage anaerobic ammonia oxidation sewage treatment device and method
CN112919741A (en) * 2021-02-02 2021-06-08 中国科学院生态环境研究中心 Denitrification phosphorus removal coupling nitrosation-anaerobic ammonia oxidation sewage treatment system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011129493A1 (en) * 2010-04-13 2011-10-20 Essa Co., Ltd. Sewage treatment apparatus for buried type tank
CN104944583A (en) * 2015-07-07 2015-09-30 北京工业大学 Test device and method of SBR partial denitrification dephosphorization/anaerobic ammonia oxidation synchronous nitrogen and phosphorus removal
CN104944582A (en) * 2015-07-07 2015-09-30 北京工业大学 Test device and method of coupled SBR denitrification dephosphorization and integrated anaerobic ammonia oxidation
CN105906044A (en) * 2016-06-17 2016-08-31 北京工业大学 Device and method for treating low-carbon urban sewage through synchronization of anaerobic ammonia oxidation coupling denitrifying phosphorus removal and endogenous denitrification

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011129493A1 (en) * 2010-04-13 2011-10-20 Essa Co., Ltd. Sewage treatment apparatus for buried type tank
CN104944583A (en) * 2015-07-07 2015-09-30 北京工业大学 Test device and method of SBR partial denitrification dephosphorization/anaerobic ammonia oxidation synchronous nitrogen and phosphorus removal
CN104944582A (en) * 2015-07-07 2015-09-30 北京工业大学 Test device and method of coupled SBR denitrification dephosphorization and integrated anaerobic ammonia oxidation
CN105906044A (en) * 2016-06-17 2016-08-31 北京工业大学 Device and method for treating low-carbon urban sewage through synchronization of anaerobic ammonia oxidation coupling denitrifying phosphorus removal and endogenous denitrification

Also Published As

Publication number Publication date
CN107043164A (en) 2017-08-15

Similar Documents

Publication Publication Date Title
CN106830324B (en) Sectional water inlet A2Device and method for enhancing biological nitrogen and phosphorus removal by adopting/O (oxygen/phosphorus) process
CN106865773B (en) Device and method for realizing partial shortcut nitrification-anaerobic ammonia oxidation by adding hydroxylamine
CN110002594B (en) Device and method for realizing shortcut nitrification-anaerobic ammonia oxidation based on hydroxylamine side inhibition
CN108545830B (en) Process for enhancing partial shortcut nitrification anaerobic ammonia oxidation of continuous flow municipal sewage by utilizing sludge fermentation
CN107162193B (en) Device and method for treating domestic sewage by low-oxygen nitrification coupled with short-range denitrification anaerobic ammonia oxidation
CN102775027B (en) Granular sludge integrated autotrophic nitrogen removal device and operating method thereof
CN110054291B (en) Device and method for connecting short-cut denitrification/anaerobic ammonia oxidation process after short-cut nitrification/anaerobic ammonia oxidation of low-C/N-ratio domestic sewage
CN110104773B (en) Method and device for treating urban sewage by full-flow anaerobic ammonia oxidation enhanced denitrification AOA (argon oxygen decarburization) process
CN113415910B (en) Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process
CN110510739B (en) Device and method for realizing semi-short-range coupling anaerobic ammonia oxidation of continuous flow AOA (argon oxygen decarburization) biomembrane through hydroxylamine
CN107043164B (en) Sewage treatment device and method for denitrification dephosphorization series-connection integrated anaerobic ammonia oxidation
CN102101720A (en) Device and method for denitrification of single stage autotroph in low-cellulose nitrate (CN) high-ammonia nitrogen waste water
CN108640278B (en) Low C/N ratio urban domestic sewage endogenous denitrification dephosphorization/shortcut nitrification partial anaerobic ammonia oxidation biomembrane process and device
CN103708682B (en) Method for coupling denitrifying dephosphatation and partial nitrification
CN104860482A (en) Advanced nitrogen removal method for treating late landfill leachate with upflow anaerobic sludge blanket, anoxic/oxic and anaerobic ammonia oxidation reactor combined process
CN112299560A (en) Continuous flow denitrification dephosphorization series anaerobic ammonia oxidation coupling endogenous denitrification sewage treatment system and method
CN104129853B (en) A kind of starting method of quick short distance nitration
CN112250183B (en) Device and method for treating urban sewage by combining whole-course nitrification with sludge fermentation and coupling short-range denitrification anaerobic ammonia oxidation
CN104108841A (en) Wastewater treatment device and wastewater treatment method for realizing deep wastewater denitrification based on sequencing batch type A/O (Anoxic/Oxic) linkage system
CN114804339B (en) BFM-based efficient AOA coupling anaerobic ammonia oxidation sewage treatment method and system
CN112744912A (en) Sulfur autotrophic denitrification biological filter, sewage treatment system and treatment method thereof
CN110759604B (en) Two-stage SBR (sequencing batch reactor) series efficient biological denitrification method for low-carbon-source sewage
CN110386731B (en) Main stream autotrophic nitrogen removal system and method based on MBBR
CN108996687A (en) A kind of short distance backflow intensifying anoxic/aerobic reactor nitrogen rejection facility and method
CN107129046B (en) A2Improved process for water treatment of/O-BCO

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant