CN113716686A - Device and method for quickly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation - Google Patents

Device and method for quickly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation Download PDF

Info

Publication number
CN113716686A
CN113716686A CN202110972170.6A CN202110972170A CN113716686A CN 113716686 A CN113716686 A CN 113716686A CN 202110972170 A CN202110972170 A CN 202110972170A CN 113716686 A CN113716686 A CN 113716686A
Authority
CN
China
Prior art keywords
short
sludge
reactor
anaerobic ammonia
ammonia oxidation
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.)
Granted
Application number
CN202110972170.6A
Other languages
Chinese (zh)
Other versions
CN113716686B (en
Inventor
彭永臻
姜浩
王众
任尚
李夕耀
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 CN202110972170.6A priority Critical patent/CN113716686B/en
Publication of CN113716686A publication Critical patent/CN113716686A/en
Application granted granted Critical
Publication of CN113716686B publication Critical patent/CN113716686B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2806Anaerobic processes using solid supports for microorganisms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/282Anaerobic digestion processes using anaerobic sequencing batch reactors
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06Contaminated groundwater or leachate
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/06Nutrients for stimulating the growth of microorganisms
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (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 device and a method for quickly starting the deep denitrification of landfill leachate by coupling short-cut denitrification and anaerobic ammonia oxidation belong to the technical field of deep denitrification treatment of wastewater with low carbon-nitrogen ratio and high ammonia nitrogen. The method mainly comprises the following steps: the method comprises the following steps of running a sludge medium mixing reactor, running a filler improvement reactor, feeding water into a short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor, and draining water from the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor by means of anoxic stirring and long-cut denitrification coupling anaerobic ammonia oxidation SBR reactor. The device is used for the deep denitrification process of the landfill leachate generated by garbage classification based on the combination of short-cut denitrification and anaerobic ammonia oxidation, has simple structure and advanced process, is convenient for quickly and practically applying the short-cut denitrification coupling anaerobic ammonia oxidation technology, and solves the problems of easy loss and low starting speed of anaerobic ammonia oxidizing bacteria and short-cut denitrification bacteria in the application process by using the immobilized microorganism technology.

Description

Device and method for quickly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation
Technical Field
The invention relates to a device and a method for quickly starting short-range denitrification coupling anaerobic ammonia oxidation to deeply denitrify garbage leachate based on strain immobilization improved biological filler, belongs to the technical field of deep denitrification treatment of high ammonia nitrogen wastewater with low carbon-nitrogen ratio, and is suitable for a biological deep denitrification process of high ammonia nitrogen wastewater such as garbage leachate generated by garbage classification treatment.
Background
In recent years, on one hand, a large amount of landfill leachate is generated in a large number of landfill sites built in the last 90 th century and a large number of waste incineration plants built in the present century every day, and on the other hand, with the increasing living standard of people, the yield of municipal solid wastes is increasing continuously, although the trend of waste classification is gradually rising, the waste classification disposal does not reduce the moisture contained in the waste, and a large amount of landfill leachate is still generated. The landfill leachate has the water quality characteristics of complex components, large water quality and water quantity change, high concentration of organic matters and ammonia nitrogen, imbalance proportion of microbial nutrient elements and the like, so that the landfill leachate becomes one of the unsolved problems in the international range. The landfill leachate can not be economically and efficiently treated by adopting a single treatment technology, and the treatment of the landfill leachate is realized by combining processes with different characteristics. The traditional biological denitrification method is nitrification-denitrification, on one hand, the investment is high, the energy consumption is large, on the other hand, the requirement of denitrification cannot be met due to limited organic matters in the later-stage landfill leachate, the effluent nitrate nitrogen content is high, and the method is not suitable for treating the high-ammonia nitrogen low-carbon landfill leachate.
In practical application, the technology based on anammox faces the problem that anammox bacteria are difficult to enrich and retain, and meanwhile, when the traditional whole-course denitrification process is transited to the short-course denitrification process, short-course denitrification bacteria also have the problem that the short-course denitrification bacteria are difficult to retain, so that the difficulty and the long starting time are caused when the short-course denitrification coupling anammox process is applied. Therefore, the development of a method for quickly starting the coupling of short-range denitrification and anaerobic ammonia oxidation is urgent.
In order to solve the problem, the invention adopts an improved immobilized microorganism embedding method to fix free anaerobic ammonium oxidation bacteria and short-range denitrifying bacteria in a limited space area so as to keep the activity of the free anaerobic ammonium oxidation bacteria and the short-range denitrifying bacteria. The anaerobic ammonium oxidation bacteria and the short-range denitrifying bacteria can be transferred and cultured by a single structure, the efficiency is high, the microorganisms after embedding and immobilization have the characteristics of high biomass concentration, repeated utilization and adverse environment resistance, the solid retention time of the anaerobic ammonium oxidation bacteria and the short-range denitrifying bacteria in a system can be prolonged, and the high bacterial concentration can be maintained. The traditional embedding technology has the disadvantage of low mechanical strength without the help of biological carriers, and the biological filler is widely applied in the field of sewage treatment at the present stage, so that how to use the technology for improving the biological filler and quickly realizing the short-cut denitrification coupling anaerobic ammonia oxidation are problems to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problems and provides a device and a method for quickly starting short-range denitrification coupling anaerobic ammonia oxidation to deeply denitrify landfill leachate based on strain immobilization improved biological filler. The cultured anaerobic ammonium oxidation sludge and the short-range denitrification sludge are mixed with each other, attached to the surface of the cell immobilization carrier and applied to the completely autotrophic nitrogen removal system, so that the problem that anaerobic ammonium oxidation bacteria and denitrifying bacteria are easy to run off in the process of establishing the short-range denitrification coupling anaerobic ammonium oxidation system can be solved, the stability of the treatment process of the system is enhanced, the starting time of the short-range denitrification coupling anaerobic ammonium oxidation is shortened, and the economical and efficient deep nitrogen removal process of the landfill leachate is finally realized.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a device of quick start short distance denitrification coupling anaerobic ammonia oxidation to landfill leachate degree of depth denitrogenation which characterized in that: the device comprises a percolate raw water tank (1), a sludge medium mixing reactor (2), a filler improvement reactor (3), a short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), a water outlet tank (5), a sludge storage tank (7) and an embedding medium storage tank (6). The device is characterized in that a temperature control heating device (8) is arranged in the middle of a raw percolate tank (1), the raw percolate tank (1) is communicated with a first peristaltic pump (40), a first water inlet control valve (39) and a short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) through a first water inlet pipe (38), and the short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) is connected with a second peristaltic pump (41), a water discharge control valve (43) and a water outlet tank (5) through a water outlet pipe (42). A second mechanical stirring device (31), a second ORP meter probe (28) and a second pH meter probe (29) are arranged in the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), wherein the second ORP meter probe (28) and the second pH meter probe (29) are respectively connected with a second ORP meter (27) and a second pH meter (26) host through connecting wires;
the sludge medium mixing reactor (2) is provided with 3 sampling monitoring valves (16) from top to bottom, the sludge medium mixing reactor (2) is connected with the embedded medium storage tank (6) through a medium inlet pipe (33), a gate valve (24) and a medium inlet pump (32), and is connected with the sludge storage tank (7) through a sludge inlet pipe (10), a valve (34) and a sludge inlet pump (25). A first mechanical stirring device (21), a DO meter (9), a first ORP meter (11) and a first pH meter (12) are arranged in the sludge medium mixing reactor (2), wherein a DO meter probe (13), a first ORP meter probe (15) and a first pH meter probe (14) are respectively connected with a DO meter (9), the first ORP meter (11) and a first pH meter (12) host through connecting wires; the filler improvement reactor (3) is connected with a second water inlet pump (35), a second water inlet control valve (36) and the sludge medium mixing reactor (2) through a second water inlet pipe (37).
A method for deep denitrification of landfill leachate based on rapid starting of short-cut denitrification coupling anaerobic ammonia oxidation of a strain immobilized improved biological filler is characterized by comprising the following steps:
the operation of the sludge medium mixing reactor: mixing the acclimated anaerobic ammonium oxidation sludge and the short-range denitrification sludge, placing the mixture into a sludge storage tank (7), preparing and dissolving a polyvinyl alcohol (PVA) and Sodium Alginate (SA) embedding medium at 120 ℃ according to the concentration of 120g/L and 20g/L, adding sodium bicarbonate with the concentration of 12g/L as a foaming agent into the embedding medium, and placing the mixture into an embedding medium storage tank (6); a sludge inlet pump (25) and a medium inlet pump (32) are started to pump anaerobic ammonia oxidation sludge, short-range denitrification sludge and embedding medium into a sludge mixing reactor (2), and a first mechanical stirring device (21) is started to fully mix the sludge and the embedding medium to obtain a bacterial glue mixed solution;
operation of the packing modification reactor: adding an annular carrier filler (22) into a filler improvement reactor (3), pumping a sludge medium mixed solution into the filler improvement reactor (3) through a second water inlet pump (35), mixing the filler and the sludge medium mixed solution, attaching the mixture to the surface of the filler to form a short-range denitrification coupling anaerobic ammonia oxidation embedded biological membrane (23), then preparing a mixed fixing solution of boric acid and calcium chloride according to the concentrations of 30g/L and 20g/L, adding the mixed fixing solution into the filler improvement reactor (3), fully contacting for 12 hours at room temperature to fully fix a biological carrier and a sludge embedding medium, and adding clear water for cleaning after immobilization crosslinking is finished to obtain a biological filler which is subjected to strain immobilization improvement;
water inlet of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: injecting leachate of an actual urban refuse landfill and leachate traditional biological treatment effluent containing nitrate nitrogen into a leachate raw water tank (1) as a raw solution, controlling the temperature of the leachate raw water tank (1) at 30 ℃ through a temperature control device (8), opening a first water inlet control valve (39), and pumping the landfill leachate into a short-cut denitrification coupling anaerobic ammonium oxidation SBR reactor (4) through a first water inlet pipe (38) and a first peristaltic pump (40);
anoxic stirring of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: adding the prepared improved biological filler into a short-range denitrification coupling anaerobic ammonium oxidation SBR reactor (4), entering an anoxic stirring stage after water inflow is finished, starting a second mechanical stirring device (31), ensuring that muddy water is completely mixed by adjusting the mechanical stirring device, carrying out short-range denitrification coupling anaerobic ammonium oxidation reaction, setting the anoxic stirring time to be more than 3 hours, and finishing after a pH curve has an inflection point;
draining water from a range denitrification coupling anaerobic ammonia oxidation SBR reactor: after the anoxic stirring is finished, the water discharging stage is started, water is directly discharged into the water outlet tank (5) through the water outlet pipe (42), the second peristaltic pump (41) and the water discharging control valve (43), and the water discharging ratio is 50%. In the drainage stage, because the improved filler is applied, the short-range denitrifying bacteria and the anaerobic ammonium oxidation bacteria are fixed on the biological filler, so that a precipitation process is not needed.
Compared with the prior art, the device and the method for quickly starting the deep denitrification of the landfill leachate by coupling the short-cut denitrification with the anaerobic ammonia oxidation based on the strain immobilized improved biological filler have the following innovation points:
1) the embedding method is adopted to fix the short-range denitrifying bacteria and the anaerobic ammonium oxidation bacteria, so that the starting time of the short-range denitrifying coupled anaerobic ammonium oxidation system can be greatly shortened, the activity of the fixed anaerobic ammonium oxidation bacteria and the fixed short-range denitrifying bacteria can be furthest reserved, and the method is suitable for engineering application;
2) the short-range denitrification coupling anaerobic ammonia oxidation system started by the embedding immobilization technology can intercept well-domesticated short-range denitrifying bacteria and anaerobic ammonia oxidation bacteria to the maximum extent, and is not easy to cause loss of anaerobic ammonia oxidation and short-range denitrification active sludge;
3) under the condition of not adding an external carbon source, the automatic carbon source of the landfill leachate is fully utilized to realize the deep denitrification of the landfill leachate, the problem that the nitrate nitrogen content of the effluent of the traditional biological treatment of the late-stage leachate with low carbon-nitrogen ratio is not up to the standard is solved, and the operation and construction cost is greatly reduced;
drawings
FIG. 1 is a schematic structural diagram of a system for rapidly starting shortcut denitrification coupling anaerobic ammonium oxidation for deep denitrification of landfill leachate based on a strain immobilized improved biological filler.
The figures in the drawings represent the following devices: 1-raw water tank of percolate; 2-sludge medium mixing reactor; 3-a packing improvement reactor; 4-short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor; 5-water outlet tank; 6-storage tank for embedding medium; 7-a sludge storage tank; 8-temperature control heating device; 9-DO instrument; 10-a mud inlet pipe; 11-first ORP meter; 12-a first PH meter; 13-DO instrument probe; 14-a first pH meter probe; 15-a first ORP meter probe; a sampling monitoring valve of the 16-sludge medium mixing reactor; 17-an aeration pump; 18-an aerator pipe; 19-a microporous aeration head; 20-a gas flow meter; 21-a first mechanical stirring device; 22-cyclic biological filler; 23-short-cut denitrification coupling anaerobic ammonia oxidation embedded biological membrane; 24-a gate valve; 25-a mud pump; 26-a second pH meter; 27-a second ORP meter; 28-a second ORP meter probe; 29-second PH meter probe; 30-sampling monitoring valve; 31-a second mechanical stirring device; 32-a medium inlet pump; 33-medium inlet pipe; 34-a valve; 35-a second water inlet pump; 36-a second intake control valve; 37-a second inlet pipe; 38-a first inlet conduit; 39-a first water intake control valve; 40-a first peristaltic pump; 41-a second peristaltic pump; 42-a water outlet pipe; 43-Drain control valve.
Detailed Description
The denitrification system and the operation method related to the invention are further described by combining the attached drawings in the specification:
as shown in the attached drawing of the specification, the device for deep denitrification of landfill leachate based on quick start of the strain immobilized improved biological filler by coupling the short-cut denitrification and the anaerobic ammonia oxidation is characterized in that: the device comprises a percolate raw water tank (1), a sludge medium mixing reactor (2), a filler improvement reactor (3), a short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), a water outlet tank (5), a sludge storage tank (7) and an embedding medium storage tank (6). The device is characterized in that a temperature control heating device (8) is arranged in the middle of a raw percolate tank (1), the raw percolate tank (1) is communicated with a first peristaltic pump (40), a first water inlet control valve (39) and a short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) through a first water inlet pipe (38), and the short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) is connected with a second peristaltic pump (41), a water discharge control valve (43) and a water outlet tank (5) through a water outlet pipe (42). A second mechanical stirring device (31), a second ORP meter probe (28) and a second pH meter probe (29) are arranged in the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), wherein the second ORP meter probe (28) and the second pH meter probe (29) are respectively connected with a second ORP meter (27) and a second pH meter (26) host through connecting wires;
the sludge medium mixing reactor (2) is provided with 3 sampling monitoring valves (16) from top to bottom, the sludge medium mixing reactor (2) is connected with the embedded medium storage tank (6) through a medium inlet pipe (33), a gate valve (24) and a medium inlet pump (32), and is connected with the sludge storage tank (7) through a sludge inlet pipe (10), a valve (34) and a sludge inlet pump (25). A first mechanical stirring device (21), a DO meter (9), a first ORP meter (11) and a first pH meter (12) are arranged in the sludge medium mixing reactor (2), wherein a DO meter probe (13), a first ORP meter probe (15) and a first pH meter probe (14) are respectively connected with a DO meter (9), the first ORP meter (11) and a first pH meter (12) host through connecting wires; the filler improvement reactor (3) is connected with a second water inlet pump (35), a second water inlet control valve (36) and the sludge medium mixing reactor (2) through a second water inlet pipe (37).
A method for deep denitrification of landfill leachate based on rapid starting of short-cut denitrification coupling anaerobic ammonia oxidation of a strain immobilized improved biological filler is characterized by comprising the following steps:
the operation of the sludge medium mixing reactor: mixing the acclimated anaerobic ammonium oxidation sludge and the short-range denitrification sludge, placing the mixture into a sludge storage tank (7), preparing and dissolving a polyvinyl alcohol (PVA) and Sodium Alginate (SA) embedding medium at 120 ℃ according to the concentration of 120g/L and 20g/L, adding sodium bicarbonate with the concentration of 12g/L as a foaming agent into the embedding medium, and placing the mixture into an embedding medium storage tank (6); a sludge inlet pump (25) and a medium inlet pump (32) are started to pump anaerobic ammonia oxidation sludge, short-range denitrification sludge and embedding medium into a sludge mixing reactor (2), and a first mechanical stirring device (21) is started to fully mix the sludge and the embedding medium to obtain a bacterial glue mixed solution;
operation of the packing modification reactor: adding an annular carrier filler (22) into a filler improvement reactor (3), pumping a sludge medium mixed solution into the filler improvement reactor (3) through a second water inlet pump (35), mixing the filler and the sludge medium mixed solution, attaching the mixture to the surface of the filler to form a short-range denitrification coupling anaerobic ammonia oxidation embedded biological membrane (23), then preparing a mixed fixing solution of boric acid and calcium chloride according to the concentrations of 30g/L and 20g/L, adding the mixed fixing solution into the filler improvement reactor (3), fully contacting for 12 hours at room temperature to fully fix a biological carrier and a sludge embedding medium, and adding clear water for cleaning after immobilization crosslinking is finished to obtain a biological filler which is subjected to strain immobilization improvement;
water inlet of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: injecting leachate of an actual urban refuse landfill and leachate traditional biological treatment effluent containing nitrate nitrogen into a leachate raw water tank (1) as a raw solution, controlling the temperature of the leachate raw water tank (1) at 30 ℃ through a temperature control device (8), opening a first water inlet control valve (39), and pumping the landfill leachate into a short-cut denitrification coupling anaerobic ammonium oxidation SBR reactor (4) through a first water inlet pipe (38) and a first peristaltic pump (40);
anoxic stirring of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: adding the prepared improved biological filler into a short-range denitrification coupling anaerobic ammonium oxidation SBR reactor (4), entering an anoxic stirring stage after water inflow is finished, starting a second mechanical stirring device (31), ensuring that muddy water is completely mixed by adjusting the mechanical stirring device, carrying out short-range denitrification coupling anaerobic ammonium oxidation reaction, setting the anoxic stirring time to be more than 3 hours, and finishing after a pH curve has an inflection point;
draining water from a range denitrification coupling anaerobic ammonia oxidation SBR reactor: after the anoxic stirring is finished, the water discharging stage is started, water is directly discharged into the water outlet tank (5) through the water outlet pipe (42), the second peristaltic pump (41) and the water discharging control valve (43), and the water discharging ratio is 50%. In the drainage stage, because the improved filler is applied, the short-range denitrifying bacteria and the anaerobic ammonium oxidation bacteria are fixed on the biological filler, so that a precipitation process is not needed.
Within the range of the average ammonia nitrogen concentration of the influent landfill leachate being 1500-2200mg/L, COD/NH4 +and-N is in the range of 1.5-2.0, the biological filler can be improved by fixedly domesticating mature anaerobic ammonium oxidation sludge and short-range denitrification sludge, so that the short-range denitrification coupling anaerobic ammonium oxidation process can be rapidly realized, and a stable operation test result shows that: the nitrate nitrogen of the effluent of the system is reduced to less than 30mg/L from the range of 200-320mg/L, so that the total nitrogen removal rate of the traditional biological denitrification system is more than 95 percent, and the aim of deep denitrification of the landfill leachate is fulfilled.
The foregoing is an exemplary embodiment of the present invention, and the practice of the present invention is not limited thereto.

Claims (2)

1. The utility model provides a device of quick start short distance denitrification coupling anaerobic ammonia oxidation to landfill leachate degree of depth denitrogenation which characterized in that: comprises a percolate raw water tank (1), a sludge medium mixing reactor (2), a filler improvement reactor (3), a short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), a water outlet tank (5), a sludge storage tank (7) and an embedding medium storage tank (6); a temperature control heating device (8) is arranged in the middle of the raw percolate tank (1), the raw percolate tank (1) is communicated with a first peristaltic pump (40), a first water inlet control valve (39) and a short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) through a first water inlet pipe (38), and the short-range denitrification coupling anaerobic ammonia oxidation SBR reactor (4) is connected with a second peristaltic pump (41), a water discharge control valve (43) and a water outlet tank (5) through a water outlet pipe (42); a second mechanical stirring device (31), a second ORP meter probe (28) and a second pH meter probe (29) are arranged in the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor (4), wherein the second ORP meter probe (28) and the second pH meter probe (29) are respectively connected with a second ORP meter (27) and a second pH meter (26) host through connecting wires;
the sludge medium mixing reactor (2) is provided with 3 sampling monitoring valves (16) from top to bottom, the sludge medium mixing reactor (2) is connected with the embedding medium storage tank (6) through a medium inlet pipe (33), a gate valve (24) and a medium inlet pump (32), and is connected with the sludge storage tank (7) through a sludge inlet pipe (10), a valve (34) and a sludge inlet pump (25); a first mechanical stirring device (21), a DO meter (9), a first ORP meter (11) and a first pH meter (12) are arranged in the sludge medium mixing reactor (2), wherein a DO meter probe (13), a first ORP meter probe (15) and a first pH meter probe (14) are respectively connected with a DO meter (9), the first ORP meter (11) and a first pH meter (12) host through connecting wires; the filler improvement reactor (3) is connected with a second water inlet pump (35), a second water inlet control valve (36) and the sludge medium mixing reactor (2) through a second water inlet pipe (37).
2. A method for applying the device of claim 1, comprising the steps of:
the operation of the sludge medium mixing reactor: mixing anaerobic ammonia oxidation sludge and short-range denitrification sludge, placing the mixture in a sludge storage tank (7), preparing and dissolving polyvinyl alcohol (PVA) and Sodium Alginate (SA) embedding media at the temperature of 120 ℃ according to the concentrations of 120g/L and 20g/L, adding sodium bicarbonate with the concentration of 12g/L as a foaming agent into the embedding media, and placing the mixture in an embedding media storage tank (6); a sludge inlet pump (25) and a medium inlet pump (32) are started to pump anaerobic ammonia oxidation sludge, short-range denitrification sludge and embedding medium into a sludge mixing reactor (2), and a first mechanical stirring device (21) is started to fully mix the sludge and the embedding medium to obtain a bacterial glue mixed solution;
operation of the packing modification reactor: adding an annular carrier filler (22) into a filler improvement reactor (3), pumping a sludge medium mixed solution into the filler improvement reactor (3) through a second water inlet pump (35), mixing the filler and the sludge medium mixed solution, attaching the mixture to the surface of the filler to form a short-range denitrification coupling anaerobic ammonia oxidation embedded biological membrane (23), then preparing a mixed fixing solution of boric acid and calcium chloride according to the concentrations of 30g/L and 20g/L, adding the mixed fixing solution into the filler improvement reactor (3), fully contacting for 12 hours at room temperature to fully fix a biological carrier and a sludge embedding medium, and adding clear water for cleaning after immobilization crosslinking is finished to obtain a biological filler which is subjected to strain immobilization improvement;
water inlet of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: injecting leachate of an actual urban refuse landfill and leachate traditional biological treatment effluent containing nitrate nitrogen into a leachate raw water tank (1) as a raw solution, controlling the temperature of the leachate raw water tank (1) at 30 ℃ through a temperature control device (8), opening a first water inlet control valve (39), and pumping the landfill leachate into a short-cut denitrification coupling anaerobic ammonium oxidation SBR reactor (4) through a first water inlet pipe (38) and a first peristaltic pump (40);
anoxic stirring of the short-cut denitrification coupling anaerobic ammonia oxidation SBR reactor: adding the prepared improved biological filler into a short-range denitrification coupling anaerobic ammonium oxidation SBR reactor (4), entering an anoxic stirring stage after water inflow is finished, starting a second mechanical stirring device (31), ensuring that muddy water is completely mixed by adjusting the mechanical stirring device, carrying out short-range denitrification coupling anaerobic ammonium oxidation reaction, setting the anoxic stirring time to be more than 3 hours, and finishing after a pH curve has an inflection point;
draining water from a range denitrification coupling anaerobic ammonia oxidation SBR reactor: after the anoxic stirring is finished, the water discharging stage is started, water is directly discharged into the water outlet tank (5) through the water outlet pipe (42), the second peristaltic pump (41) and the water discharging control valve (43), and the water discharging ratio is 50%.
CN202110972170.6A 2021-08-24 2021-08-24 Method for rapidly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation Active CN113716686B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110972170.6A CN113716686B (en) 2021-08-24 2021-08-24 Method for rapidly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110972170.6A CN113716686B (en) 2021-08-24 2021-08-24 Method for rapidly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation

Publications (2)

Publication Number Publication Date
CN113716686A true CN113716686A (en) 2021-11-30
CN113716686B CN113716686B (en) 2023-03-14

Family

ID=78677480

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110972170.6A Active CN113716686B (en) 2021-08-24 2021-08-24 Method for rapidly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation

Country Status (1)

Country Link
CN (1) CN113716686B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115784440A (en) * 2022-11-29 2023-03-14 红菌生物(广东)有限公司 Landfill leachate sludge-film mixed anaerobic ammonium oxidation denitrification process

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186909A (en) * 2007-12-14 2008-05-28 华南理工大学 Embedding immobilization method for anaerobic ammoxidation mixed culture
KR20140064357A (en) * 2012-11-20 2014-05-28 한국과학기술연구원 Apparatus and method for reduction of nitrate nitrogen using fe-dependent microbe
CN103951047A (en) * 2014-04-04 2014-07-30 北京工业大学 Preparation and application of anaerobic ammonia oxidizing bacteria immobilized straight-tubular bioactive filler based on reticulate carrier
CN103951049A (en) * 2014-04-04 2014-07-30 北京工业大学 Anaerobic ammonia oxidizing bacteria fixed-type bioactive fillers, and preparation and application thereof
CN105858880A (en) * 2016-04-25 2016-08-17 北京工业大学 Method for treating municipal sewage and nitrate wastewater by immobilized anaerobic ammoxidation coupled short-range denitrification
CN105861479A (en) * 2016-04-25 2016-08-17 北京工业大学 Method for co-immobilizing anaerobic ammoxidation bacteria-short-cut nitrobacteria and application thereof
US10676382B1 (en) * 2017-09-29 2020-06-09 Entex Technologies, Inc. System and method for biologically treating wastewater using low density, high surface area substrates
CN111454935A (en) * 2020-04-25 2020-07-28 北京博泰至淳生物科技有限公司 Immobilized enzyme for sewage denitrification and preparation method and application thereof
CN112897691A (en) * 2021-03-04 2021-06-04 苏州绿业环境发展有限公司 Method for treating wastewater by using short-range denitrifying bacteria and anaerobic ammonium oxidation bacteria based on immobilization

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186909A (en) * 2007-12-14 2008-05-28 华南理工大学 Embedding immobilization method for anaerobic ammoxidation mixed culture
KR20140064357A (en) * 2012-11-20 2014-05-28 한국과학기술연구원 Apparatus and method for reduction of nitrate nitrogen using fe-dependent microbe
CN103951047A (en) * 2014-04-04 2014-07-30 北京工业大学 Preparation and application of anaerobic ammonia oxidizing bacteria immobilized straight-tubular bioactive filler based on reticulate carrier
CN103951049A (en) * 2014-04-04 2014-07-30 北京工业大学 Anaerobic ammonia oxidizing bacteria fixed-type bioactive fillers, and preparation and application thereof
CN105858880A (en) * 2016-04-25 2016-08-17 北京工业大学 Method for treating municipal sewage and nitrate wastewater by immobilized anaerobic ammoxidation coupled short-range denitrification
CN105861479A (en) * 2016-04-25 2016-08-17 北京工业大学 Method for co-immobilizing anaerobic ammoxidation bacteria-short-cut nitrobacteria and application thereof
US10676382B1 (en) * 2017-09-29 2020-06-09 Entex Technologies, Inc. System and method for biologically treating wastewater using low density, high surface area substrates
CN111454935A (en) * 2020-04-25 2020-07-28 北京博泰至淳生物科技有限公司 Immobilized enzyme for sewage denitrification and preparation method and application thereof
CN112897691A (en) * 2021-03-04 2021-06-04 苏州绿业环境发展有限公司 Method for treating wastewater by using short-range denitrifying bacteria and anaerobic ammonium oxidation bacteria based on immobilization

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115784440A (en) * 2022-11-29 2023-03-14 红菌生物(广东)有限公司 Landfill leachate sludge-film mixed anaerobic ammonium oxidation denitrification process
CN115784440B (en) * 2022-11-29 2023-08-04 红菌生物(广东)有限公司 Garbage leachate sludge membrane mixed anaerobic ammonia oxidation denitrification process

Also Published As

Publication number Publication date
CN113716686B (en) 2023-03-14

Similar Documents

Publication Publication Date Title
CN113480004B (en) Method for deeply denitrifying urban sewage after carbon and phosphorus capture and realizing phosphorus recovery through PDA (personal digital Assistant)
CN108675450B (en) Device and method for realizing efficient and low-consumption nitrogen and phosphorus removal of municipal sewage
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
CN110372095B (en) Method for treating high ammonia nitrogen wastewater by whole-course nitrification-sludge fermentation coupled short-range denitrification/anaerobic ammonia oxidation biomembrane process
CN103663725A (en) Continuous flow biological denitrification method based on granular sludge, and apparatus
CN101723512B (en) Ammonia-contained waste water high-efficiency biochemical processing method
CN108658229B (en) Device and method for controlling autotrophic/heterotrophic deep denitrification process
CN101857344A (en) Method for treating domestic sewage by applying light ceramic suspended filler moving bed
CN105417727A (en) Method for deeply treating micro-polluted source water through in-situ enrichment, immobilization and acclimatization of indigenous microorganisms
CN113428979B (en) Method for synchronously treating nitrate wastewater and domestic sewage by two-stage reinforced PDAMOX process based on biological membrane
CN111484204B (en) Combined process and treatment system for treating high ammonia nitrogen wastewater
CN105712584A (en) Denitrification method and device for synchronously treating livestock farm biogas liquid wastewater and municipal sewage through combination of segmented partial nitrification and anaerobic ammonia oxidation
CN114772725A (en) Device and method for enhancing nitrogen and phosphorus removal of domestic sewage by coupling sulfur autotrophic short-cut denitrification with anaerobic ammonia oxidation
CN108383239B (en) Integrated biological treatment process for shortcut nitrification anaerobic ammonia oxidation and phosphorus removal under intermittent aeration mode
CN107324497B (en) Starting method for treating biogas slurry in pig farm by coupling denitrification Canon process
CN112744912A (en) Sulfur autotrophic denitrification biological filter, sewage treatment system and treatment method thereof
CN114105299B (en) Device and method for strengthening urban sewage carbon source sludge capture combined autotrophic and heterotrophic denitrification
CN113716686B (en) Method for rapidly starting deep denitrification of landfill leachate by coupling short-cut denitrification with anaerobic ammonia oxidation
CN113716695B (en) Device and method for deep denitrification of landfill leachate by enhanced short-cut nitrification-coupled anaerobic ammonia oxidation based on high-dissolved oxygen operation
CN214880538U (en) Device for rapidly culturing aerobic granular sludge and treating low-carbon-ratio urban sewage
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
CN108558008B (en) Device and method for treating urban domestic sewage by continuous flow CS-BAF-DEAMOX coupling sludge fermentation
CN102617002B (en) Method for treating dispersed domestic sewage
CN112479363A (en) Device and method for simultaneously treating municipal sewage and nitrate-containing wastewater
CN109534489A (en) A kind of cultural method of High-efficient Nitrobacteria

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