CN116239220B - Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation - Google Patents

Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation Download PDF

Info

Publication number
CN116239220B
CN116239220B CN202211091334.5A CN202211091334A CN116239220B CN 116239220 B CN116239220 B CN 116239220B CN 202211091334 A CN202211091334 A CN 202211091334A CN 116239220 B CN116239220 B CN 116239220B
Authority
CN
China
Prior art keywords
water
reactor
water inlet
time
short
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
CN202211091334.5A
Other languages
Chinese (zh)
Other versions
CN116239220A (en
Inventor
彭永臻
柴婵
李翔晨
张静雯
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 CN202211091334.5A priority Critical patent/CN116239220B/en
Publication of CN116239220A publication Critical patent/CN116239220A/en
Application granted granted Critical
Publication of CN116239220B publication Critical patent/CN116239220B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C02F3/302—Nitrification and denitrification treatment
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen
    • 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
    • C02F2101/30—Organic compounds
    • C02F2101/40—Organic compounds containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/38—Polymers
    • 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
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation 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

The invention discloses a device and a method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation, and belongs to the field of sewage sludge biological treatment. The main reactors are sequencing batch SBR reactors. The method comprises the following steps: the acrylic fiber wastewater enters a sulfur oxidation whole-process nitrifying biomembrane reactor, and sulfur oxidizing bacteria and whole-process nitrifying bacteria convert thiocyanate and ammonia nitrogen into sulfate and nitrate. The effluent from the reactor and domestic sewage enter a short-cut denitrification anaerobic ammonia oxidation particle reactor together, and nitrate, ammonia nitrogen and organic matters are removed cooperatively by denitrifying bacteria and anaerobic ammonia oxidation bacteria. The invention effectively solves the problems of carbon source shortage and weak microbial toxicity resistance in the traditional biological treatment process of industrial wastewater, and can realize the efficient degradation of nitrogen, sulfur and carbon pollutants.

Description

Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation
Technical Field
The invention relates to a device and a method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation, belonging to the technical field of sewage biological treatment.
Background
At present, biochemical treatment is considered as the most economical and effective dominant technology, but only depends on the traditional nitrification and denitrification process to treat acrylic fiber wastewater, and two major barriers of carbon source shortage and biological toxicity are difficult to achieve the standard of effluent quality. In addition, the characteristic inorganic pollutant thiocyanate has direct or indirect contribution to the main control index COD and ammonia nitrogen, so that the quality of effluent water is influenced, and therefore, the double removal of nitrogen and sulfur and the effective removal of organic matters are required to be realized by combining different characteristic processes.
Thiocyanate can be used as a nitrogen source, a sulfur source or a carbon source to be utilized and converted by microorganisms, and the final products are sulfate, carbon dioxide and ammonia nitrogen, wherein most of the ammonia nitrogen is released into a water phase, so that the denitrification load is increased. The control of the pollutant thiocyanate should mainly be focused on two reaction nodes for converting thiocyanate into ammonia nitrogen and converting ammonia nitrogen into nitrogen. Compared with the traditional nitrification reaction, the whole nitrification process can directly convert ammonia nitrogen into nitrate nitrogen in a single microorganism, has high ammonia affinity and strong hypoxia adaptability, and can play a great role in sewage denitrification.
The anaerobic ammonia oxidation technology can simultaneously convert ammonia nitrogen and nitrite into nitrogen without aeration and carbon source, and since the technology is discovered, the technology is mainly applied to sewage treatment technology in a short-cut nitrification coupling anaerobic ammonia oxidation technology mode. The heterotrophic denitrifying bacteria can realize long-term stable and efficient nitrosation yield under the regulation and control of the mass concentration ratio of COD and nitrate nitrogen, the substrate concentration, the temperature and other factors, and breaks through the bottleneck that the nitrosation is difficult to stably supply in the sewage treatment of the anaerobic ammonia oxidation process. Compared with the short-cut nitrification-coupled anaerobic ammonia oxidation process, the short-cut denitrification-coupled anaerobic ammonia oxidation process can save aeration energy consumption and carbon sources, and simultaneously can remove the by-product of anaerobic ammonia oxidation, namely the nitrate nitrogen in situ, and the theoretical denitrification rate is as high as 100%.
The urban domestic sewage is rich in available carbon sources, and the degradable organic matters can not be completely converted into the driving force for sewage denitrification due to the waste of aeration in the aerobic section in the actual process, so that the full utilization of the partial carbon sources has important practical significance. In addition, the abundance and activity of bacteria can be ensured by adopting two biological modes of biological film and particle retention, so that the process operation is stably maintained.
Disclosure of Invention
The invention provides a device and a method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation. Firstly, treating acrylic fiber wastewater by a sulfur oxidation whole-process nitration reactor, wherein sulfur oxidizing bacteria convert thiocyanate into ammonia nitrogen, sulfate and carbon dioxide by utilizing oxygen, and the whole-process nitration bacteria directly oxidize raw water ammonia nitrogen and sulfur oxidation byproduct ammonia nitrogen into nitrate; the effluent from the reactor and urban sewage are mixed together and enter a short-cut denitrification anaerobic ammonia oxidation reactor, denitrifying bacteria fully utilize a domestic sewage carbon source to reduce nitrite substrates by nitrate, and ammonia nitrogen is synchronously removed by anaerobic ammonia oxidation. Finally, adding a reagent into the water outlet tank to form sulfate precipitate and recycling, thereby achieving the high-efficiency denitrification and desulfurization of the acrylic fiber wastewater and the municipal sewage.
In order to achieve the aim, the device for synchronously treating the acrylic fiber wastewater and the domestic sewage by combining the whole sulfur oxidation process nitrification with the short-range denitrification anaerobic ammoxidation is provided by the invention and is characterized in that: comprises an acrylic fiber waste water raw water tank (1), a sulphur oxidation whole-course nitrification biomembrane reactor (2), an intermediate water tank (3), a domestic sewage raw water tank (4), a short-range denitrification anaerobic ammonia oxidation particle reactor (5), a water outlet tank (6), an automatic real-time control device (7) and a computer (8).
The sulphur oxidation whole-course nitration biological film reactor (2) is provided with a first water inlet peristaltic pump (2.1), a first water inlet (2.2), an alkalinity replenishing bottle (2.3), an alkalinity adding pump (2.4), a first pH/DO real-time monitoring device (2.5), a first electric stirrer (2.6), a first overflow port (2.7), a first water outlet (2.8), a first water outlet peristaltic pump (2.9), a first mud outlet (2.10), an aeration sand head (2.12), an air pump (2.13), an air flowmeter (2.14) and a fixed biological film filler (2.15): the annular hollow filler is made of polyethylene; the short-cut denitrification anaerobic ammonium oxidation granule reactor (5) is provided with a second water inlet peristaltic pump (5.1), a second water inlet (5.2), a third water inlet peristaltic pump (5.3), a third water inlet (5.4), a second electric stirrer (5.5), a second pH/DO real-time monitoring device (5.6), a second overflow port (5.7), a second water outlet (5.8), a second water outlet peristaltic pump (5.9), a second mud discharge port (5.10) and inoculation PD/A integrated granules (5.11).
The acrylic fiber wastewater raw water tank (1) is connected with the sulfur oxidation whole-course nitrification biological membrane reactor (2) through a first water inlet peristaltic pump (2.1), the middle water tank (3) is connected with a second water inlet peristaltic pump (5.1) of the sulfur oxidation whole-course nitrification biological membrane reactor (2) through a first water outlet (2.7) of the sulfur oxidation whole-course nitrification biological membrane reactor (2) respectively, the domestic wastewater raw water tank (4) is connected with a second water inlet (5.2) of the short-range denitrification anaerobic ammonia oxidation particle reactor (5) through a third water inlet peristaltic pump (5.3) and the short-range denitrification anaerobic ammonia oxidation particle reactor (5). The automatic control system (7) is connected with the computer (8) and is used for controlling the first water inlet pump (2.1), the alkalinity adding pump (2.4), the first water outlet pump (2.8), the second water inlet pump (5.1), the second water outlet pump (5.10), the third water inlet pump (5.3), the first pH/DO real-time monitoring device (2.5), the second pH/DO real-time monitoring device (5.6), the first electric stirrer (2.6) and the second electric stirrer (5.5).
The invention provides a method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification and short-range denitrification anaerobic ammoxidation, which is characterized by comprising the following steps of:
1) Starting a sulfur oxidation whole-process nitrification biomembrane reactor: the sulfur oxidation whole-course nitrification biomembrane reactor is connected with surplus sludge in a secondary sedimentation tank of an urban sewage plant, meanwhile, fixed whole-course nitrification biomembrane filling materials are placed, the filling ratio is 20%, the concentration of a sludge mixed solution is 2000-2500mg/L, and the concentration of biomembrane sludge is 2000-4000mg/L; the acrylic fiber wastewater enters a sulfur oxidation whole-process nitrification biomembrane reactor, the pH is monitored in real time through a first pH/DO real-time monitoring device, and when the pH is lower than 7.0, an alkalinity adding pump is started to supplement the alkalinity until the pH is between 7.0 and 8.5. The flora adaptation stage, wherein the sulphur oxidation whole-course nitrifying biomembrane reactor is operated for 2 cycles per day, each cycle lasts for 12 hours, water inflow is carried out for 10 minutes, aerobic stirring is carried out for 540 minutes, precipitation is carried out for 10-15 minutes, water drainage is carried out for 10 minutes, idling is carried out for 145-150 minutes, DO concentration is controlled at 0.6-0.8mg/L, and water drainage ratio is 60%; after 20 days of operation, the water treatment device is operated for 2 periods each day, each period is 12 hours, water inflow is carried out for 10 minutes, anoxic stirring is carried out for 120 minutes, aerobic stirring is carried out for 480 minutes, precipitation is carried out for 10-15 minutes, water is discharged for 10 minutes, and the water discharge ratio is 60 percent when the water treatment device is idle for 85-90 minutes. The DO concentration range of the aerobic section is unchanged, the sludge is not actively discharged, and the temperature is not controlled. And when the generation rate of the sulfate and the removal rate of the nitrate of the aerobic last water are both more than 85 percent and the stable operation is performed for more than 7 days, the complete nitrification biomembrane reactor for sulfur oxidation is successfully started.
2) Starting a short-cut denitrification anaerobic ammonia oxidation particle reactor: inoculating the short-cut denitrification anaerobic ammonia oxidation integrated granular sludge into a short-cut denitrification anaerobic ammonia oxidation granular reactor, wherein the concentration of the mixed liquor sludge is 5000-6000mg/L, the inflow water is simulated wastewater, the carbon source is provided by sodium acetate, the nitrate nitrogen concentration is 60-100 mg/L, the ammonia nitrogen concentration is 50-80 mg/L, the mass concentration ratio of COD to nitrate nitrogen is kept at 2.5-3.0, the short-cut denitrification anaerobic ammonia oxidation integrated granular sludge is operated for 4 periods each day, the inflow time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%. Sodium acetate is added at the beginning of anoxic stirring, and the adding time is 1-2min. Running for 21 days or more, pumping domestic sewage into a short-cut denitrification anaerobic ammonia oxidation granule reactor, running for 4 cycles each day for 6 hours each cycle, wherein the water inlet time is 10min, the stirring time is 180-240 min, the precipitation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%. The nitrate nitrogen is supplied by the simulated wastewater, so that the mass concentration ratio of the nitrate nitrogen to the ammonia nitrogen in the initial reaction reactor is kept between 1.0 and 1.2. And after the total nitrogen removal rate of the effluent of the short-cut denitrification anaerobic ammonia oxidation particle reactor is more than 85 percent, the short-cut denitrification anaerobic ammonia oxidation particle reactor stably operates for more than 7 days, which indicates that the short-cut denitrification anaerobic ammonia oxidation particle reactor is successfully started.
3) Joint operation: starting a first water inlet peristaltic pump, pumping acrylic fiber wastewater into a sulfur oxidation whole-course nitrification biomembrane reactor through a first water inlet, running for 2 periods each day, each period for 12 hours, feeding water for 10 minutes, anoxic stirring for 120 minutes, aerobic stirring for 480 minutes, precipitating for 10-15 minutes, draining for 10 minutes, and idling for 85-90 minutes. After the water inlet of the sulfur oxidation whole-course nitrifying biomembrane reactor is finished, an electric stirrer is started, the degradable COD in the acrylic fiber wastewater is fully utilized by the anoxic section, and the DO concentration is controlled to be 0.6-0.8mg/L by starting an air pump in the aerobic section. Simultaneously, the pH value is monitored in real time through a first pH value/DO real-time monitoring device, and when the pH value is lower than 7.0, an alkalinity adding pump is started to supplement the alkalinity until the pH value is between 7.0 and 8.5. After the stirring of the aerobic section is finished, the first water discharge peristaltic pump is started after the sulphur oxidation whole-process nitrification biomembrane reactor is precipitated, and the tail water is discharged to the middle water tank through the first water outlet, wherein the water discharge ratio is 60%. Starting a second water inlet peristaltic pump and a third water inlet peristaltic pump, pumping the sewage in the middle water tank and the domestic sewage raw water tank into a short-range denitrification anaerobic ammonia oxidation granule reactor according to the mass concentration ratio of nitrate nitrogen to ammonia nitrogen of 1.0-1.2, running for 4 periods each day, wherein the water inlet time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, and the idle time is 95-160 min. After the anoxic stirring is finished and the short-range denitrification anaerobic ammonia oxidation particle reactor is settled, a second drainage pump is opened, and the tail water is drained to a water outlet tank through a second drainage outlet, wherein the drainage ratio is 50%. When the total nitrogen concentration of the effluent of the short-cut denitrification anaerobic ammonia oxidation particle reactor is less than 10mg/L and the operation is stable for more than 14 days, the sulfur oxidation whole-course nitrification biomembrane reactor and the short-cut denitrification anaerobic ammonia oxidation particle reactor can treat acrylic wastewater and domestic sewage simultaneously.
The invention provides a device and a method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation, whole-course nitrification and short-range denitrification and anaerobic ammoxidation, which are characterized by comprising the following characteristics and advantages:
1) The combined process effectively utilizes degradable organic matters in urban domestic sewage as a denitrification reaction driving force, relates to three autotrophic nitrogen conversion ways of sulfur oxidation reaction, whole-course nitration reaction and anaerobic ammonia oxidation reaction, can effectively reduce external carbon source addition, saves aeration energy consumption, has low sludge yield and reduces process operation cost;
2) The combined process adopts a method for integrating domestic sewage and acrylic fiber wastewater, and can provide a proper matrix proportion for short-range denitrification anaerobic ammoxidation by regulating and controlling the proportion of the two types of sewage;
3) The combined process adopts two biological retention modes of biological membranes and particles, so that not only can the abundance and activity of flora in the reactor be ensured, but also the shock load resistance of the reactor can be improved, and the whole process can still stably run under toxic and harmful environments;
Drawings
FIG. 1 is a device for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation.
In fig. 1: 1-acrylic fiber waste water raw water tank, 2-sulphur oxidation whole-course nitrifying biomembrane reactor, 3-middle water tank, 4-domestic sewage raw water tank, 5-short-range denitrification anaerobic ammonia oxidation granule reactor, 6-water outlet tank, 7-automatic real-time control device and 8-computer.
Detailed Description
The device for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation and whole-course nitrification with short-range denitrification and anaerobic ammoxidation is characterized in that: comprises an acrylic fiber waste water raw water tank (1), a sulphur oxidation whole-course nitrification biomembrane reactor (2), an intermediate water tank (3), a domestic sewage raw water tank (4), a short-range denitrification anaerobic ammonia oxidation particle reactor (5), a water outlet tank (6), an automatic real-time control device (7) and a computer (8).
The sulphur oxidation whole-course nitration biological film reactor (2) is provided with a first water inlet peristaltic pump (2.1), a first water inlet (2.2), an alkalinity replenishing bottle (2.3), an alkalinity adding pump (2.4), a first pH/DO real-time monitoring device (2.5), a first electric stirrer (2.6), a first overflow port (2.7), a first water outlet (2.8), a first water outlet peristaltic pump (2.9), a first mud outlet (2.10), an aeration sand head (2.12), an air pump (2.13), an air flowmeter (2.14) and a fixed biological film filler (2.15): the annular hollow filler is made of polyethylene with an inner diameter of 50mm, a specific surface area of 500m 2/m3 and a density of 0.96g/m 3. The short-cut denitrification anaerobic ammonium oxidation granule reactor (5) is provided with a second water inlet peristaltic pump (5.1), a second water inlet (5.2), a third water inlet peristaltic pump (5.3), a third water inlet (5.4), a second electric stirrer (5.5), a second pH/DO real-time monitoring device (5.6), a second overflow port (5.7), a second water outlet (5.8), a second water outlet peristaltic pump (5.9), a second mud discharge port (5.10) and inoculation PD/A integrated granules (5.11).
The acrylic fiber wastewater raw water tank (1) is connected with the sulfur oxidation whole-course nitrification biological membrane reactor (2) through a first water inlet peristaltic pump (2.1), the middle water tank (3) is connected with a second water inlet peristaltic pump (5.1) of the sulfur oxidation whole-course nitrification biological membrane reactor (2) through a first water outlet (2.7) of the sulfur oxidation whole-course nitrification biological membrane reactor (2) respectively, the domestic wastewater raw water tank (4) is connected with a second water inlet (5.2) of the short-range denitrification anaerobic ammonia oxidation particle reactor (5) through a third water inlet peristaltic pump (5.3) and the short-range denitrification anaerobic ammonia oxidation particle reactor (5). The automatic control system (7) is connected with the computer (8) and is used for controlling the first water inlet pump (2.1), the alkalinity adding pump (2.4), the first water outlet pump (2.8), the second water inlet pump (5.1), the second water outlet pump (5.10), the third water inlet pump (5.3), the first pH/DO real-time monitoring device (2.5), the second pH/DO real-time monitoring device (5.6), the first electric stirrer (2.6) and the second electric stirrer (5.5).
The method for synchronously treating the acrylic fiber wastewater and the domestic sewage by using the device is characterized by comprising the following steps:
1) Starting a sulfur oxidation whole-process nitrification biomembrane reactor: the sulfur oxidation whole-course nitrification biomembrane reactor is connected with surplus sludge in a secondary sedimentation tank of an urban sewage plant, meanwhile, fixed whole-course nitrification biomembrane filling materials are placed, the filling ratio is 20%, the concentration of a sludge mixed solution is 2000-2500mg/L, and the concentration of biomembrane sludge is 2000-4000mg/L; the acrylic fiber wastewater enters a sulfur oxidation whole-process nitrification biomembrane reactor, the pH is monitored in real time through a first pH/DO real-time monitoring device, and when the pH is lower than 7.0, an alkalinity adding pump is started to supplement the alkalinity until the pH is between 7.0 and 8.5. The flora adaptation stage, wherein the sulphur oxidation whole-course nitrifying biomembrane reactor is operated for 2 cycles per day, each cycle lasts for 12 hours, water inflow is carried out for 10 minutes, aerobic stirring is carried out for 540 minutes, precipitation is carried out for 10-15 minutes, water drainage is carried out for 10 minutes, idling is carried out for 145-150 minutes, DO concentration is controlled at 0.6-0.8mg/L, and water drainage ratio is 60%; after 20 days of operation, the water treatment device is operated for 2 periods each day, each period is 12 hours, water inflow is carried out for 10 minutes, anoxic stirring is carried out for 120 minutes, aerobic stirring is carried out for 480 minutes, precipitation is carried out for 10-15 minutes, water is discharged for 10 minutes, and the water discharge ratio is 60 percent when the water treatment device is idle for 85-90 minutes. The DO concentration range of the aerobic section is unchanged, the sludge is not actively discharged, and the temperature is not controlled. And when the generation rate of the sulfate and the removal rate of the nitrate of the aerobic last water are both more than 85 percent and the stable operation is performed for more than 7 days, the complete nitrification biomembrane reactor for sulfur oxidation is successfully started.
2) Starting a short-cut denitrification anaerobic ammonia oxidation particle reactor: inoculating the short-cut denitrification anaerobic ammonia oxidation integrated granular sludge into a short-cut denitrification anaerobic ammonia oxidation granular reactor, wherein the concentration of the mixed liquor sludge is 5000-6000mg/L, the inflow water is simulated wastewater, the carbon source is provided by sodium acetate, the nitrate nitrogen concentration is 60-100 mg/L, the ammonia nitrogen concentration is 50-80 mg/L, the mass concentration ratio of COD to nitrate nitrogen is kept at 2.5-3.0, the short-cut denitrification anaerobic ammonia oxidation integrated granular sludge is operated for 4 periods each day, the inflow time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%. Sodium acetate is added at the beginning of anoxic stirring, and the adding time is 1-2min. Running for 21 days or more, pumping domestic sewage into a short-cut denitrification anaerobic ammonia oxidation granule reactor, running for 4 cycles each day for 6 hours each cycle, wherein the water inlet time is 10min, the stirring time is 180-240 min, the precipitation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%. The nitrate nitrogen is supplied by the simulated wastewater, so that the mass concentration ratio of the nitrate nitrogen to the ammonia nitrogen in the initial reaction reactor is kept between 1.0 and 1.2. And after the total nitrogen removal rate of the effluent of the short-cut denitrification anaerobic ammonia oxidation particle reactor is more than 85 percent, the short-cut denitrification anaerobic ammonia oxidation particle reactor stably operates for more than 7 days, which indicates that the short-cut denitrification anaerobic ammonia oxidation particle reactor is successfully started.
3) Joint operation: starting a first water inlet peristaltic pump, pumping acrylic fiber wastewater into a sulfur oxidation whole-course nitrification biomembrane reactor through a first water inlet, running for 2 periods each day, each period for 12 hours, feeding water for 10 minutes, anoxic stirring for 120 minutes, aerobic stirring for 480 minutes, precipitating for 10-15 minutes, draining for 10 minutes, and idling for 85-90 minutes. After the water inlet of the sulfur oxidation whole-course nitrifying biomembrane reactor is finished, an electric stirrer is started, the degradable COD in the acrylic fiber wastewater is fully utilized by the anoxic section, and the DO concentration is controlled to be 0.6-0.8mg/L by starting an air pump in the aerobic section. Simultaneously, the pH value is monitored in real time through a first pH value/DO real-time monitoring device, and when the pH value is lower than 7.0, an alkalinity adding pump is started to supplement the alkalinity until the pH value is between 7.0 and 8.5. After the stirring of the aerobic section is finished, the first water discharge peristaltic pump is started after the sulphur oxidation whole-process nitrification biomembrane reactor is precipitated, and the tail water is discharged to the middle water tank through the first water outlet, wherein the water discharge ratio is 60%. Starting a second water inlet peristaltic pump and a third water inlet peristaltic pump, pumping the sewage in the middle water tank and the domestic sewage raw water tank into a short-range denitrification anaerobic ammonia oxidation granule reactor according to the mass concentration ratio of nitrate nitrogen to ammonia nitrogen of 1.0-1.2, running for 4 periods each day, wherein the water inlet time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, and the idle time is 95-160 min. After the anoxic stirring is finished and the short-range denitrification anaerobic ammonia oxidation particle reactor is settled, a second drainage pump is opened, and the tail water is drained to a water outlet tank through a second drainage outlet, wherein the drainage ratio is 50%. When the total nitrogen concentration of the effluent of the short-cut denitrification anaerobic ammonia oxidation particle reactor is less than 10mg/L and the operation is stable for more than 14 days, the sulfur oxidation whole-course nitrification biomembrane reactor and the short-cut denitrification anaerobic ammonia oxidation particle reactor can treat acrylic wastewater and domestic sewage simultaneously.

Claims (2)

1. The device for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation and whole-course nitrification with short-range denitrification and anaerobic ammoxidation is characterized in that: the system comprises an acrylic fiber wastewater raw water tank (1), a sulphur oxidation whole-course nitrification biomembrane reactor (2), an intermediate water tank (3), a domestic sewage raw water tank (4), a short-range denitrification anaerobic ammonia oxidation particle reactor (5), a water outlet tank (6), an automatic real-time control device (7) and a computer (8);
The sulphur oxidation whole-course nitration biological film reactor (2) is provided with a first water inlet peristaltic pump (2.1), a first water inlet (2.2), an alkalinity replenishing bottle (2.3), an alkalinity adding pump (2.4), a first pH/DO real-time monitoring device (2.5), a first electric stirrer (2.6), a first overflow port (2.7), a first water outlet (2.8), a first water outlet peristaltic pump (2.9), a first mud outlet (2.10), an aeration sand head (2.12), an air pump (2.13), an air flowmeter (2.14) and a fixed biological film filler (2.15): the short-cut denitrification anaerobic ammonium oxidation granule reactor (5) is provided with a second water inlet peristaltic pump (5.1), a second water inlet (5.2), a third water inlet peristaltic pump (5.3), a third water inlet (5.4), a second electric stirrer (5.5), a second pH/DO real-time monitoring device (5.6), a second overflow port (5.7), a second water outlet (5.8), a second water outlet peristaltic pump (5.9), a second mud discharge port (5.10) and an inoculation PD/A integrated granule (5.11);
The acrylic fiber wastewater raw water tank (1) is connected with the sulfur oxidation whole-course nitrification biological membrane reactor (2) through a first water inlet peristaltic pump (2.1), the middle water tank (3) is connected with a second water inlet peristaltic pump (5.1) through a first water outlet peristaltic pump (2.9) and the sulfur oxidation whole-course nitrification biological membrane reactor (2) respectively, a first overflow port (2.7) is connected with a second water inlet (5.2) of the short-range denitrification anaerobic ammonia oxidation particle reactor (5), and the domestic wastewater raw water tank (4) is connected with the short-range denitrification anaerobic ammonia oxidation particle reactor (5) through a third water inlet peristaltic pump (5.3); the automatic real-time control device (7) is connected with the computer (8) and is used for controlling the first water inlet peristaltic pump (2.1), the alkalinity adding pump (2.4), the first water outlet peristaltic pump (2.9), the second water inlet peristaltic pump (5.1), the second water outlet peristaltic pump (5.9), the third water inlet peristaltic pump (5.3), the first pH/DO real-time monitoring device (2.5), the second pH/DO real-time monitoring device (5.6), the first electric stirrer (2.6) and the second electric stirrer (5.5).
2. The method for synchronously treating acrylic wastewater and domestic sewage by using the device as claimed in claim 1, which is characterized by comprising the following steps:
(1) Starting a sulfur oxidation whole-process nitrification biomembrane reactor: the sulfur oxidation whole-course nitrification biomembrane reactor is connected with surplus sludge in a secondary sedimentation tank of an urban sewage plant, meanwhile, fixed whole-course nitrification biomembrane filling materials are placed, the filling ratio is 20%, the concentration of a sludge mixed solution is 2000-2500mg/L, and the concentration of biomembrane sludge is 2000-4000 mg/L; enabling the acrylic fiber wastewater to enter a sulfur oxidation whole-process nitrification biomembrane reactor, monitoring the pH value in real time through a first pH/DO real-time monitoring device, and starting an alkalinity adding pump to supplement the alkalinity until the pH value is between 7.0 and 8.5 when the pH value is lower than 7.0; the flora adaptation stage, the sulphur oxidation whole-course nitrifying biomembrane reactor is operated for 2 cycles each day, each cycle lasts for 12 hours, water inflow is carried out for 10 minutes, aerobic stirring is carried out for 540 minutes, sedimentation is carried out for 10-15 minutes, water drainage is carried out for 10 minutes, idling is carried out for 145-150 minutes, DO concentration is controlled at 0.6-0.8 mg/L, and water drainage ratio is 60%; after 20 days of operation, the method is operated for 2 periods each day, each period is 12 hours, water inflow is carried out for 10 minutes, anoxic stirring is carried out for 120 minutes, aerobic stirring is carried out for 480 minutes, precipitation is carried out for 10-15 minutes, water drainage is carried out for 10 minutes, and the water drainage ratio is 60% after the method is left for 85-90 minutes; the DO concentration range of the aerobic section is unchanged, mud is not actively discharged, and the temperature is not controlled;
(2) Starting a short-cut denitrification anaerobic ammonia oxidation particle reactor: inoculating short-cut denitrification anaerobic ammonia oxidation integrated granular sludge into a short-cut denitrification anaerobic ammonia oxidation granular reactor, wherein the concentration of mixed liquor sludge is 5000-6000mg/L, the inflow water is simulated wastewater, a carbon source is provided by sodium acetate, the concentration of nitrate nitrogen is 60-100 mg/L, the concentration of ammonia nitrogen is 50-80 mg/L, the mass concentration ratio of COD to nitrate nitrogen is kept at 2.5-3.0, the short-cut denitrification anaerobic ammonia oxidation integrated granular sludge runs for 4 periods each day, the inflow time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%; sodium acetate is added when anoxic stirring starts, and the adding time is 1-2min; pumping domestic sewage into a short-cut denitrification anaerobic ammonia oxidation particle reactor after 21 days or more operation, wherein the operation is carried out for 4 cycles each day, each cycle is 6 hours, the water inlet time is 10min, the stirring time is 180-240 min, the precipitation time is 5-10min, the drainage time is 5min, the idle time is 95-160 min, and the drainage ratio is 50%; the nitrate nitrogen is supplied by the simulated wastewater, so that the mass concentration ratio of the nitrate nitrogen to the ammonia nitrogen in the initial reaction reactor is kept between 1.0 and 1.2;
(3) Joint operation: starting a first water inlet peristaltic pump, pumping acrylic fiber wastewater into a sulfur oxidation whole-course nitrification biomembrane reactor through a first water inlet, running for 2 periods each day, each period of 12 hours, water inlet for 10 minutes, anoxic stirring for 120 minutes, aerobic stirring for 480 minutes, precipitation for 10-15 minutes, water drainage for 10 minutes, and idling for 85-90 minutes; starting an electric stirrer after the water inlet of the sulfur oxidation whole-course nitrifying biomembrane reactor is finished, fully utilizing the degradable COD in the acrylic fiber wastewater by the anoxic section, and controlling the DO concentration to be 0.6-0.8 mg/L by starting an air pump by the aerobic section; simultaneously, the pH value is monitored in real time through a first pH value/DO real-time monitoring device, and when the pH value is lower than 7.0, an alkalinity adding pump is started to supplement the alkalinity until the pH value is between 7.0 and 8.5; after the stirring of the aerobic section is finished, starting a first water discharge peristaltic pump after the sulphur oxidation whole-process nitrification biomembrane reactor is precipitated, and discharging tail water to an intermediate water tank through a first water outlet, wherein the water discharge ratio is 60%; starting a second water inlet peristaltic pump and a third water inlet peristaltic pump, pumping the sewage in the middle water tank and the domestic sewage raw water tank into a short-range denitrification anaerobic ammonia oxidation granule reactor according to the mass concentration ratio of nitrate nitrogen to ammonia nitrogen of 1.0-1.2, running for 4 periods each day, wherein the water inlet time is 10min, the stirring time is 180-240 min, the sedimentation time is 5-10min, the drainage time is 5min, and the idle time is 95-160 min; after the anoxic stirring is finished and the short-range denitrification anaerobic ammonia oxidation particle reactor is settled, a second drainage pump is opened, and the tail water is drained to a water outlet tank through a second drainage outlet, wherein the drainage ratio is 50%.
CN202211091334.5A 2022-09-07 2022-09-07 Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation Active CN116239220B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211091334.5A CN116239220B (en) 2022-09-07 2022-09-07 Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211091334.5A CN116239220B (en) 2022-09-07 2022-09-07 Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation

Publications (2)

Publication Number Publication Date
CN116239220A CN116239220A (en) 2023-06-09
CN116239220B true CN116239220B (en) 2024-04-26

Family

ID=86630150

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211091334.5A Active CN116239220B (en) 2022-09-07 2022-09-07 Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation

Country Status (1)

Country Link
CN (1) CN116239220B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002119993A (en) * 2000-10-13 2002-04-23 National Agricultural Research Organization Method and apparatus for treating wastewater
CN112456646A (en) * 2020-11-17 2021-03-09 北京工业大学 Device and method for coupling A0A-SBR of anaerobic ammonia oxidation through heterotrophic denitrification and autotrophic denitrification enhanced partial denitrification
CN113428979A (en) * 2021-07-14 2021-09-24 北京工业大学 Device and method for synchronously treating nitrate wastewater and domestic sewage by two-stage reinforced PDAMOX process based on biological membrane
CN113716697A (en) * 2021-08-28 2021-11-30 北京工业大学 Method and device for realizing deep denitrification of landfill leachate by using double short-range combined process
CN114772727A (en) * 2022-03-10 2022-07-22 北京工业大学 Device and method for synchronously treating domestic sewage and nitrate wastewater based on sulfur autotrophic short-cut denitrification and anaerobic ammonia oxidation technologies
WO2022170787A1 (en) * 2021-02-09 2022-08-18 北京工业大学 Device and method for synchronously treating sewage and sludge by using step feed shortcut nitrification-anaerobic ammonia oxidation combination

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002119993A (en) * 2000-10-13 2002-04-23 National Agricultural Research Organization Method and apparatus for treating wastewater
CN112456646A (en) * 2020-11-17 2021-03-09 北京工业大学 Device and method for coupling A0A-SBR of anaerobic ammonia oxidation through heterotrophic denitrification and autotrophic denitrification enhanced partial denitrification
WO2022170787A1 (en) * 2021-02-09 2022-08-18 北京工业大学 Device and method for synchronously treating sewage and sludge by using step feed shortcut nitrification-anaerobic ammonia oxidation combination
CN113428979A (en) * 2021-07-14 2021-09-24 北京工业大学 Device and method for synchronously treating nitrate wastewater and domestic sewage by two-stage reinforced PDAMOX process based on biological membrane
CN113716697A (en) * 2021-08-28 2021-11-30 北京工业大学 Method and device for realizing deep denitrification of landfill leachate by using double short-range combined process
CN114772727A (en) * 2022-03-10 2022-07-22 北京工业大学 Device and method for synchronously treating domestic sewage and nitrate wastewater based on sulfur autotrophic short-cut denitrification and anaerobic ammonia oxidation technologies

Also Published As

Publication number Publication date
CN116239220A (en) 2023-06-09

Similar Documents

Publication Publication Date Title
CN112158952B (en) Device and method for treating low-carbon-nitrogen-ratio wastewater through continuous flow AOA (argon oxygen decarburization) shortcut nitrification and anaerobic ammonia oxidation coupling sludge fermentation denitrification
CN106830324B (en) Sectional water inlet A2Device and method for enhancing biological nitrogen and phosphorus removal by adopting/O (oxygen/phosphorus) process
CN107162193B (en) Device and method for treating domestic sewage by low-oxygen nitrification coupled with short-range denitrification anaerobic ammonia oxidation
CN108946944B (en) Method for promoting total nitrogen removal of wastewater by short-cut denitrification
CN110436704B (en) Urban sewage treatment upgrading and reforming process based on anaerobic ammonia oxidation
CN109160670B (en) Denitrification method of municipal sewage denitrification filter based on short-cut denitrification and anaerobic ammonia oxidation
CN101439915B (en) Membrane aeration biomembrane process and apparatus for sewerage short-cut denitrification
CN107253762B (en) Rapid starting method for coupling short-cut denitrification dephosphorization with anaerobic ammonia oxidation
CN102964035B (en) Device for autotrophic nitrogen removal of composite biological membrane and operation method
CN106966498B (en) Shortcut nitrification and denitrification coupled anaerobic ammonia oxidation denitrification process and control method
CN113087134A (en) Device and method for quickly realizing integration of partial shortcut nitrification/anaerobic ammonia oxidation by adding hydroxylamine and combining with low sludge age control
CN112607861B (en) Process for treating municipal sewage by using excess sludge fermentation carbon source to strengthen denitrification dephosphorization, partial short-cut denitrification and anaerobic ammonia oxidation
CN114772725B (en) Device and method for enhancing denitrification and dephosphorization of domestic sewage by coupling sulfur autotrophic short-cut denitrification and anaerobic ammoxidation
CN110342638B (en) Low-carbon-nitrogen-ratio sewage denitrification device and method based on double reflux and gradient oxygen limitation
CN112125396A (en) Anaerobic ammonia oxidation enhanced municipal sewage nitrogen and phosphorus removal system and method
CN113716689B (en) Mixed nutrition type denitrification method based on sulfur reduction and sulfur autotrophic denitrification
CN114772727A (en) Device and method for synchronously treating domestic sewage and nitrate wastewater based on sulfur autotrophic short-cut denitrification and anaerobic ammonia oxidation technologies
CN112093890B (en) Method for treating sewage by short-cut nitrification
CN115432808B (en) Device and method for efficiently and synchronously treating acrylic fiber wastewater and nitrate wastewater by double DEAMOX process
CN115745178B (en) Method for realizing synchronous aerobic anoxic denitrification and dephosphorization by composite granular sludge system
CN116239220B (en) Device and method for synchronously treating acrylic fiber wastewater and domestic sewage by combining sulfur oxidation whole-course nitrification with short-range denitrification anaerobic ammoxidation
CN113697953B (en) Realizing A based on gradually reducing suspended sludge concentration 2 Device and method for quick in-situ starting of/O part anaerobic ammonia oxidation process
CN201220931Y (en) Apparatus for realizing sludge shortcut nitrification by using FA and FNA control
CN113149215A (en) Middle-placed aeration denitrification treatment method for papermaking wastewater
CN111470620A (en) CANON granular sludge granulation culture method and reactor thereof

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