CN110563156B - SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization - Google Patents

SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization Download PDF

Info

Publication number
CN110563156B
CN110563156B CN201910781242.1A CN201910781242A CN110563156B CN 110563156 B CN110563156 B CN 110563156B CN 201910781242 A CN201910781242 A CN 201910781242A CN 110563156 B CN110563156 B CN 110563156B
Authority
CN
China
Prior art keywords
sbbr
water
value
plc
water outlet
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
CN201910781242.1A
Other languages
Chinese (zh)
Other versions
CN110563156A (en
Inventor
范永杰
刘文义
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.)
Ningxia Yuanwei Environmental Protection Technology Co ltd
Original Assignee
Ningxia Yuanwei Environmental Protection Technology Co ltd
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 Ningxia Yuanwei Environmental Protection Technology Co ltd filed Critical Ningxia Yuanwei Environmental Protection Technology Co ltd
Priority to CN201910781242.1A priority Critical patent/CN110563156B/en
Publication of CN110563156A publication Critical patent/CN110563156A/en
Application granted granted Critical
Publication of CN110563156B publication Critical patent/CN110563156B/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
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1263—Sequencing batch reactors [SBR]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • 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
    • 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
    • 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
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • 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
    • C02F2209/02—Temperature
    • 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
    • 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
    • C02F2209/16—Total nitrogen (tkN-N)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/06—Nutrients for stimulating the growth of microorganisms
    • 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

Abstract

The invention discloses an SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization, and belongs to the field of environment-friendly sewage treatment. The efficient denitrification and dephosphorization method combining the SBBR sewage treatment process and the lateral flow dephosphorization process has strong operability and practical popularization significance. The invention can greatly reduce the use amount of the additional carbon source and the flocculant, effectively improve the biological dephosphorization efficiency, and has the dephosphorization effective rate of more than 95 percent. The invention reflects the total nitrogen content in the water through the change of the pH value, can accurately control the addition amount of the external carbon source through a control program, further strengthens the denitrification process of biological denitrification, and ensures that the water discharged from the device can stably reach the discharge standard through the denitrification and dephosphorization method.

Description

SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization
Technical Field
The invention relates to the field of environment-friendly sewage treatment, in particular to an SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization.
Background
Along with the development of ecological civilization construction in China, the treatment of water environment is continuously pushed to a new height, under the increasingly strict environmental requirements, the sewage treatment water quality reaches the first-level A emission standard of pollutant emission standards of urban sewage treatment plants (2002), the minimum emission requirements are gradually reached, indexes such as BOD5, SS and the like except nitrogen and phosphorus in the sewage can be effectively removed under the common process treatment, and the effective removal of nitrogen and phosphorus which cause water eutrophication is often a difficult point of each sewage treatment enterprise. The emission standards for nitrogen and phosphorus in the primary a emissions are: ammonia nitrogen is less than 5mg/L, total nitrogen is less than 15mg/L, and total phosphorus is less than 0.5mg/L.
The biological denitrification process of sewage treatment is mainly characterized by that under the action of microorganism of nitrifying bacteria and denitrifying bacteria, the organic nitrogen can be undergone the processes of ammoniation, nitrifying and denitrifying, etc. so as to make the nitrogen-containing organic material in the sewage be decomposed and converted into N 2 And released into the atmosphere. The biological phosphorus removal process of sewage treatment mainly utilizes microorganisms such as phosphorus accumulating bacteria and the like to release phosphorus under anaerobic conditions, and then takes phosphorus excessively under aerobic conditions, and then achieves the purpose of phosphorus removal by discharging residual sludge containing the phosphorus accumulating bacteria. However, since the C/N ratio of the general domestic sewage is too low or it is difficult to reasonably distribute the carbon source in each reaction stage, the AAO process, MBR process, SBR process or other processes are basically used by each domestic sewage treatment enterprise, and the carbon source is basically added to promote the biological reaction denitrification, and the flocculant is added in the later stage of the treatment to remove phosphorus, thereby increasing the sewage treatment flow and greatly increasing the running cost and the sludge treatment capacity.
The SBBR sewage treatment process is derived from SBR (sequencing batch reactor for short), and is characterized in that a solid medium (commonly called a filler) for microorganism adhesion is added in a reactor of the SBBR process, and the SBBR is short for a sequencing batch membrane bioreactor. In the SBBR process, an aeration tank and a sedimentation tank are combined into a whole, five working procedures of water inlet, reaction (anaerobic, anoxic and aerobic), sedimentation, water outlet and idle are completed in the same SBBR reactor, one cycle is adopted for each batch of water to be treated, and after one cycle is completed, the next cycle is continued to be circulated in sequence. The SBBR technology has the characteristics of small occupied area, strong impact load resistance, high precise and automatic control degree, low energy consumption, stable effluent quality and the like. Although the SBBR wastewater treatment process of the traditional operation procedure can generally reach 80 percent of nitrogen and phosphorus removal rate, the wastewater treatment process also has difficulty in continuously reaching the discharge standard of 'first grade A'. Therefore, in order for the SBBR process to stably reach the "first-class a" emission standard, it is necessary to creatively change its operation process and control method.
Disclosure of Invention
The invention aims at: the SBBR sewage treatment device and the method for high-efficiency denitrification and dephosphorization can improve the denitrification and dephosphorization efficiency, ensure that the water quality of the effluent stably reaches the first-level A discharge standard, maximize the utilization rate of the added carbon source and flocculant, effectively reduce the operation energy consumption and improve the impact load resistance of the system.
The technical scheme adopted by the invention is as follows:
the utility model provides a high-efficient nitrogen and phosphorus removal's SBBR sewage treatment plant, including the SBBR reactor, the SBBR reactor passes through the pipeline and connects equalizing basin and sludge impoundment respectively, the SBBR reactor passes through the aeration pipe and connects big aeration fan and little aeration fan respectively, be provided with liquid level sensor, dissolved oxygen sensor and pH and temperature sensor in the SBBR reactor, be provided with first play water pneumatic valve and second play water pneumatic valve on the SBBR reactor, liquid level sensor, dissolved oxygen sensor, pH and temperature sensor, first play water pneumatic valve and second play water pneumatic valve all with PLC program controller electric connection, the SBBR reactor still is connected with the device that provides the carbon source.
Further, the large aeration fan, the small aeration fan and the PLC are electrically connected with the frequency converter.
Further, a sewage pump is arranged in the regulating tank and is electrically connected with the PLC.
Further, a supernatant reflux pump is arranged on a pipeline between the sludge pool and the SBBR reactor, and the supernatant reflux pump is electrically connected with the PLC.
Further, a carbon source adding metering pump is arranged on a pipeline between the carbon source providing device and the SBBR reactor, and the carbon source adding metering pump is electrically connected with the PLC.
Further, the sludge impoundment is connected with the device that provides the flocculating agent, is provided with the flocculating agent on the pipeline between sludge impoundment and the device that provides the flocculating agent and adds the measuring pump, and flocculating agent adds measuring pump and PLC program controller electric connection.
Further, the SBBR reactor is provided with a communicating pipe connected to a pipe between the sludge tank and the means for supplying a flocculant, and the second water outlet pneumatic valve is provided on the communicating pipe.
The sewage treatment method by adopting the SBBR sewage treatment device for high-efficiency denitrification and dephosphorization sequentially comprises the following steps:
(1) Excessive phosphorus release stage
1) And (3) water inlet: starting a sewage pump to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 Stopping the sewage pump, starting the carbon source adding metering pump while water is fed, and stopping when the set quantity is reached;
2) The reaction: starting a small aeration fan to stir gas, and monitoring a set operating frequency P selected when a pH value and a temperature value transmitted back by a temperature sensor are in a set T interval by a PLC program controller; intermittently operating the small aeration fan, stopping the reaction when the operation time of the reaction stage reaches a set value t, and entering a standing precipitation stage;
3) Standing: standing for 30-50min;
4) And (3) water outlet: opening a second water outlet pneumatic valve, draining the SBBR to a sludge tank, opening a flocculating agent adding metering pump 3-8s after opening the second water outlet pneumatic valve, and when the water level of the SBBR reaches a set water level H 3 Closing the second water outlet pneumatic valve and the flocculant adding metering pump;
the operation principle of the stage is as follows: the stage has only anoxic reaction, aims at leading microorganisms (phosphorus removing bacteria mainly including phosphorus accumulating bacteria) to hydrolyze in vivo to release phosphate, and adds enough organic carbon source to lead the phosphorus accumulating bacteria to release phosphorus in the body sufficiently and excessively, wherein the phosphorus release amount in water can reach 50mg/L, sodium acetate is usually used as carbon source, and the addition amount of domestic sewage is usually 0.35-0.4mg/L (the addition value when the maximum phosphorus release amount is reached during debugging). Two thirds of the water after the sufficient excessive phosphorus release is discharged into a sludge pool, and phosphorus is removed by precipitation through the action of a flocculating agent. In the stage, a small-power aeration fan is used for carrying out gas stirring in an intermittent operation mode, and the waveform chart of the Do value is saw-tooth type because the oxygen consumption of microorganisms is larger than the oxygen supply of the fan, but the highest Do value is controlled within 0.5mg/L. As the water temperature is changed between 5 ℃ and 35 ℃ within one year, the oxygen demand of microorganisms is also greatly different due to different temperatures, and different temperature intervals can be corresponding to different fan operating frequencies or different power fan configurations to obtain different oxygen supply amounts, so that the requirements of each stage of microorganisms are met, and the energy consumption is also saved.
(2) Enhanced phosphorus release stage
1) And (3) water inlet: starting a sewage pump to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 Stopping the sewage pump when the sewage pump is stopped;
2) Anoxic reaction: starting a small aeration fan to stir gas, and selecting a set operating frequency P when a PLC program controller monitors that the pH value and the temperature value transmitted by a temperature sensor are within a set value T interval; intermittently operating the small aeration fan, stopping the anoxic reaction when the operation time of the reaction stage reaches a set value t, and entering the aerobic reaction;
3) And (3) aerobic reaction: starting a large aeration fan to perform aeration, wherein the PLC monitors the operation frequency P selected when the pH value and the temperature value transmitted by the temperature sensor are in a set value T interval, and stopping the large aeration fan when the Do value reaches 2mg/l and then continues to perform aeration for a set time and the change of the rising speed of the Do value reaches a set value;
4) Standing: standing for 30-50min;
5) And (3) water outlet: opening a second water outlet pneumatic valve, draining the SBBR to a sludge tank, opening a flocculating agent adding metering pump 3-8s after opening the second water outlet pneumatic valve, and when the water level of the SBBR reaches a set water level H 3 Closing the second water outlet pneumatic valve and the flocculant adding metering pump;
the operation principle of the stage is as follows: the phosphorus accumulating bacteria has no aerobic reaction in the previous stage, and the excessive phosphorus release of the phosphorus accumulating bacteria can inhibit the growth of the phosphorus accumulating bacteria, and the activity of the phosphorus accumulating bacteria is gradually recovered until the phosphorus accumulating bacteria enter the aerobic reaction in the previous stage, but the excessive phosphorus accumulating task is not completed before the end of the aerobic reaction, and the phosphorus content in the water at the tail end of the stage is 0.5-1mg/L, so that excessive acetic acid is possibly absorbed in the phosphorus accumulating bacteria in the early stage, and the phosphorus accumulating bacteria are in the growth and propagation and population optimizing stage, but the phosphorus accumulating bacteria lays a foundation for the up-to-standard water yielding of more than ten batches in the later stage. The water yield at this stage is the normal water yield, which is one third of the water yield of the effective volume of the SBBR reactor, and the discharged water is also discharged into a sludge pool, and phosphorus precipitation is removed by the action of a flocculating agent. In the stage, a small fan is used for intermittent gas stirring in the anoxic reaction, a large fan is used for continuous aeration in the aerobic reaction, different fan operating frequencies (or different fans with different power configurations or different numbers of fans are used for obtaining different oxygen supply) are selected in different temperature intervals in the control program, the oxygen supply can meet the oxygen consumption of microorganisms when decomposing organic matters and keep the Do value in water to be 2mg/L, after the organic matters are gradually decomposed and absorbed by the microorganisms, the oxygen consumption of the microorganisms is reduced, the Do value in water increases in an exponential curve form, and the oxygen supply rate reaches a set value to indicate that the aerobic reaction is ended.
(3) Formally water outlet stage
1) And (3) water inlet: starting a sewage pump to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 Stopping the sewage pump when the sewage pump is stopped;
2) Anoxic reaction: starting a small aeration fan to stir gas, and selecting a set operating frequency P when a PLC program controller monitors that the pH value and the temperature value transmitted by a temperature sensor are within a set value T interval; intermittently operating the small aeration fan, stopping the anoxic reaction when the operation time of the reaction stage reaches a set value t, and entering the aerobic reaction;
3) And (3) aerobic reaction: starting a large aeration fan to perform aeration, wherein the PLC monitors the operation frequency P selected when the pH value and the temperature value transmitted by the temperature sensor are in a set value T interval, and stopping the large aeration fan when the Do value reaches 2mg/l and then continues to perform aeration for a set time and the change of the rising speed of the Do value reaches a set value;
4) Standing: standing for 30-50min;
5) Opening a first water outlet pneumatic valve, discharging or recycling the treated water in the SBBR reactor, and when the water level of the SBBR reactor reaches H 2 Closing the first water outlet pneumatic valve;
the operation principle of the stage is as follows: the anaerobic reaction principle and the aerobic reaction principle are basically the same as those of the previous stage, but pH value monitoring is added, the bad degree of the quality of the water is reflected through the change of the pH value, the total nitrogen in the water is represented, the pH value reaches a peak value in the anaerobic stage (the pH value is raised by the ammonification reaction and the denitrification reaction), the pH value is reduced in the aerobic reaction (the nitrification reaction is the process of acid production), when the difference value from the peak value to the end of the aerobic reaction is too large, the nitrogen content of the water is too high, and a certain carbon source is needed to be added to continue the denitrification reaction so as to further remove the total nitrogen.
Further, in the formal water outlet stage, when the aerobic reaction is finished, the PLC monitors the pH value from the peak value after water inflow to the difference delta pH of the pH decrease at the end of the aerobic reaction, and the anaerobic reaction is repeated, and a carbon source adding metering pump is started at the same time; if the difference delta pH of the monitored pH drop is less than the set coefficient, the standing is directly carried out.
Further, when the liquid level meter of the regulating tank is at a low water level after the formal water outlet stage is finished, the whole system enters an idle standby state; repeating the steps of the formal water outlet stage when the liquid level of the regulating tank is at the normal water level, wherein the steps in the step 1) are increased: the sewage pump is started and the supernatant return pump is started.
The invention relies on SBBR sequencing batch sewage treatment technology, the dephosphorization mode of the traditional technology is subverted, the mode of microorganism 'phosphorus release drainage' replaces microorganism 'phosphorus accumulation sludge discharge' is adopted for dephosphorization, the potential of microorganism phosphorus release is maximally excavated by reasonably adding carbon source, even the total phosphorus of effluent can be controlled to be less than 0.3mg/L by a program, and the reliability of system dephosphorization is ensured; the denitrification process is accurately controlled through the change of the pH value, so that the effective removal of nitrogen and ammonia nitrogen by the system is ensured; aiming at the temperature change all the year round, the PLC selects different operation frequencies of the aeration fans for different temperature intervals, so that the stability of the system is improved, and the energy consumption is reduced.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the biological nitrogen and phosphorus removal effect is good, biological phosphorus removal can be continuously and stably achieved, ammonia nitrogen of the effluent can be always about 1mg/L, total nitrogen is less than or equal to 15mg/L, total phosphorus is less than or equal to 0.5mg/L, the controllability of the method is strong, and the quality of the effluent can be further improved by adjusting control parameters;
2. the invention can greatly reduce the use amount of the external carbon source and the flocculant, effectively improve the biological dephosphorization efficiency, and has the dephosphorization effective rate of more than 95 percent, and the invention reflects the total nitrogen content in water through the change of the pH value, can accurately control the addition amount of the external carbon source through a control program, further strengthens the denitrification process of biological denitrification, and ensures that the water discharged by the device can stably reach the discharge standard through the denitrification dephosphorization method;
3. the invention has high degree of automation, improves the reaction efficiency through the accurate control of the PLC, has short reaction time, low energy consumption, low medicament cost of carbon sources and the like, realizes unattended operation, improves the stability of the system and reduces the energy consumption;
4. the whole system of the method has strong impact load resistance, little mud yield, short process flow, small occupied area, small investment and strong operability, and is suitable for popularization.
Drawings
FIG. 1 is a block diagram of an SBBR sewage treatment plant for efficient denitrification and dephosphorization according to the present invention;
FIG. 2 is a sequence diagram of the various reaction stages of the present invention;
marked in the figure as: 1-SBBR reactor, 2-equalizing basin, 3-sludge basin, 4-sewage pump, 5-first water pneumatic valve, 6-second water pneumatic valve, 7-big aeration fan, 8-little aeration fan, 9-carbon source adds the measuring pump, 10-flocculating agent adds the measuring pump, 11-supernatant fluid reflux pump, 12-liquid level sensor, 13-dissolved oxygen sensor, 14-pH and temperature sensor, 15-converter, 16-PLC program controller.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The utility model provides a high-efficient nitrogen and phosphorus removal's SBBR sewage treatment plant, including SBBR reactor 1, SBBR reactor 1 passes through the pipeline and connects equalizing basin 2 and sludge impoundment 3 respectively, SBBR reactor 1 passes through the aeration pipe and connects big aeration fan 7 and little aeration fan 8 respectively, be provided with liquid level sensor 12 in the SBBR reactor 1, dissolved oxygen sensor 13 and pH and temperature sensor 14, be provided with first play water pneumatic valve 5 and second play water pneumatic valve 6 on the SBBR reactor 1, liquid level sensor 12, dissolved oxygen sensor 13, pH and temperature sensor 14, first play water pneumatic valve 5 and second play water pneumatic valve 6 all with PLC program controller 16 electric connection, SBBR reactor 1 still is connected with the device that provides the carbon source.
Wherein, big aeration fan 7, little aeration fan 8 and PLC program controller 16 all with converter 15 electric connection, PLC program controller 16 control big aeration fan 7 and little aeration fan 8 open, close and running frequency.
Wherein, the sewage pump 4 is arranged in the regulating tank 2, the sewage pump 4 is electrically connected with the PLC 16, and the PLC 16 controls the opening and closing of the sewage pump 4.
Wherein, be provided with supernatant return pump 11 on the pipeline between sludge impoundment 3 and SBBR reactor 1, supernatant return pump 11 and PLC program controller 16 electric connection, PLC program controller 16 controls the start and stop of supernatant return pump 11.
The carbon source adding metering pump 9 is arranged on a pipeline between the carbon source providing device and the SBBR reactor 1, the carbon source adding metering pump 9 is electrically connected with the PLC 16, and the PLC 16 controls the carbon source adding metering pump 9 to be opened and closed.
The device for providing the flocculant is connected with the sludge pond 3, a flocculant adding metering pump 10 is arranged on a pipeline between the sludge pond 3 and the device for providing the flocculant, the flocculant adding metering pump 10 is electrically connected with a PLC (programmable logic controller) 16, and the PLC 16 controls the opening and closing of the flocculant adding metering pump 10; the SBBR reactor 1 is provided with a communicating pipe connected to a pipe between the sludge tank 3 and the means for supplying a flocculant, on which a second water outlet pneumatic valve 6 is provided.
The sewage treatment method by adopting the SBBR sewage treatment device for high-efficiency denitrification and dephosphorization comprises the following specific steps:
(1) Excessive phosphorus release stage
(1) And (3) water inlet: the sewage pump is started by the PLC to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 And stopping the sewage pump, and starting the carbon source adding metering pump by the PLC program controller when water is fed, so that the sewage pump is stopped when the set quantity is reached. When sodium acetate is used as a carbon source, the addition amount is usually 0.35-0.4mg/L.
(2) The reaction: after water inflow is stopped, the PLC program controller starts the small aeration fan to stir gas, at the moment, the operation frequency of the small aeration fan is inversely related to the monitored temperature value, and the PLC program controller monitors that the pH value and the temperature value returned by the temperature sensor are in T 1 Operating frequency P selected during interval 1 (temperature at T) 2 Time selection of intervalFrequency of operation P 2 At a temperature of T 3 Operating frequency P selected during interval 3 ) The above temperature interval T n And operating frequency P n All are set values (n is 1,2 and 3). The small aeration fan operates in an intermittent operation mode, and each operation t 1 Stop t 2 The reaction stage run time reaches the set value t 3 Stopping the reaction, entering a standing precipitation stage, and obtaining the reaction product t n Are all set values. At the moment, the phosphorus content in the water often reaches more than 50mg/L (treating common domestic sewage), t 3 Typically 1-1.5 hours.
(3) Standing: standing (precipitation) for a period of time t 4 Is set at a set point (typically 30-50 minutes).
(4) And (3) water outlet: after the standing is finished, the PLC program controller opens a second water outlet pneumatic valve, water in the SBBR reactor is drained to the sludge tank by gravity, and the second water outlet pneumatic valve is opened for a set value t after the delay 5 The flocculant adding metering pump is started (usually 5 seconds), and the flow rate and the running time of the flocculant adding metering pump are set values. When the water level of the SBBR reactor reaches H 3 And closing the second water outlet pneumatic valve and the flocculant adding metering pump. H 3 Is typically one third of the effective water level (the water yield is two thirds of the capacity of the SBBR reactor).
(2) Enhanced phosphorus release stage
(1) And (3) water inlet: the sewage pump is started by the PLC to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 The sewage pump is stopped.
(2) Anoxic reaction: after water inflow is stopped, a PLC program controller starts a small aeration fan to stir gas, and the PLC program controller monitors that the pH value and the temperature value transmitted by a temperature sensor are in T 1 Operating frequency P selected during interval 1 (temperature at T) 2 Operating frequency P selected during interval 2 At a temperature of T 3 Operating frequency P selected during interval 3 ) The above temperature interval T n And operating frequency P n Are all set values. The small aeration fan operates in an intermittent operation mode, and each operation t 1 Stop t 2 The reaction stage run time reaches the set value t 4 Stopping anoxic reaction, and making them enter into aerobic reaction n Are all set values. At this time, the total phosphorus content in the water is about 8-10mg/L (treating general domestic sewage, total phosphorus is 5-8 mg/L), t 4 Typically 1-1.5 hours.
(3) And (3) aerobic reaction: the PLC program controller starts the large aeration fan to perform aeration, and monitors that the pH value and the temperature value transmitted by the temperature sensor are in T 1 Operating frequency P selected during interval 4 (temperature at T) 2 Operating frequency P selected during interval 5 At a temperature of T 3 Operating frequency P selected during interval 6 ) The above temperature interval T n And operating frequency P n Are all set values. When the Do value reaches 2mg/l, the value is set at the value t 6 After the change of the rising speed reaches a set value (for example, after the Do value reaches 2mg/l, aeration t6=30 minutes, the rising difference value of the Do value in 5 minutes is more than 0.2), the PLC sends a signal to stop the large aeration fan.
(5) Standing: standing (precipitation) for a period of time t 4 Is set at a set point (typically 30-50 minutes).
(6) And (3) water outlet: after the standing is finished, the PLC program controller opens a second water outlet pneumatic valve, water in the SBBR reactor is drained to the sludge tank by gravity, and the second water outlet pneumatic valve is opened for a set value t after the delay 5 The flocculant adding metering pump is started (usually 5 seconds), and the flow rate and the running time of the flocculant adding metering pump are set values. When the water level of the SBBR reactor reaches H 2 And closing the second water outlet pneumatic valve and the flocculant adding metering pump. H 2 Is typically two-thirds the effective water level (the water yield is one-third of the capacity of the SBBR reactor).
(3) Formally water outlet stage
(1) And (3) water inlet: the sewage pump is started by the PLC to feed water into the SBBR reactor to reach the set water level H of the SBBR reactor 1 The sewage pump is stopped.
(2) Anoxic reaction: after water inflow is stopped, a PLC program controller starts a small aeration fan to stir gas, and the PLC program controller monitors that the pH value and the temperature value transmitted by a temperature sensor are in T 1 Operation selected during intervalFrequency P 1 (temperature at T) 2 Operating frequency P selected during interval 2 At a temperature of T 3 Operating frequency P selected during interval 3 ) The above temperature interval T n And operating frequency P n All are set values (n is 1,2 and 3). The small aeration fan operates in an intermittent operation mode, and each operation t 1 Stop t 2 The reaction stage run time reaches the set value t 4 Stopping anoxic reaction, and making them enter into aerobic reaction n Are all set values. At the moment, the phosphorus content in the water is 5-6mg/L (for treating general domestic sewage), t 4 Typically 1-1.5 hours.
(3) And (3) aerobic reaction: the PLC program controller starts the large aeration fan to perform aeration, and monitors that the pH value and the temperature value transmitted by the temperature sensor are in T 1 Operating frequency P selected during interval 4 (temperature at T) 2 Operating frequency P selected during interval 5 At a temperature of T 3 Operating frequency P selected during interval 6 ) The above temperature interval T n And operating frequency P n Are all set values. When the Do value reaches 2mg/l, the value is set at the value t 6 After the change of the rising speed reaches a set value (for example, after the Do value reaches 2mg/l, aeration t6=30 minutes, the rising difference value of the Do value in 5 minutes is more than 0.2), the PLC sends a signal to stop the large aeration fan. At this time, the phosphorus content in the water is 0.1-0.3mg/L (for treating general domestic sewage).
(4) When the system monitors the pH value and the difference DeltapH between the peak value after water inflow and the pH drop at the end of the aerobic reaction is more than or equal to a set coefficient (0.7-1.3), repeating the step (2), wherein the operation time is the time length of the aerobic reaction multiplied by a timing coefficient, and simultaneously starting a carbon source adding metering pump, and the operation time length (carbon source adding amount) of the carbon source adding metering pump is DeltapH multiplied by the time coefficient (set value); if the difference DeltapH of the monitored pH drop < the set factor, then the next step (5) is performed directly.
(5) Standing: standing (precipitation) for a period of time t 4 Is set at a set point (typically 30-50 minutes).
(6) And (3) water outlet: after the standing is finished, the PLC program controller opens a first water outlet pneumatic valve, and the position in the SBBR reactor is positionedThe water after being treated reaches the standard to be discharged or recycled, when the water level of the SBBR reaches H 2 And closing the first water outlet pneumatic valve. H 2 Is typically two-thirds the effective water level (the water yield is one-third of the capacity of the SBBR reactor).
The steps (1) to (6) are the 1 st batch of water in the water outlet stage.
(7) Idle: when the PLC detects that the liquid level meter of the regulating tank is at a low water level, the whole system enters an idle standby state.
(8) Repeating steps (1) to (6) when the regulating reservoir liquid level is at the normal level, during which steps (1) are increased: and starting the supernatant fluid reflux pump while the sewage pump is started by the PLC, wherein the operation time of the supernatant fluid reflux pump is set as a set value. A batch of water can be processed once each time the steps (1) to (6) are repeated, n batches (10-20 batches can be set according to the water quality condition) can be set in the PLC, and the supernatant of the sludge pond [3] is uniformly spread into the water inflow of each batch when the water inflow of the 2 nd batch to the n batch is performed so as to empty the sludge pond;
after the reaction is finished, the process is sequentially carried out of standing (precipitation), water discharging and idling, then the process is repeated for 10-20 batches, during which the phosphorus-releasing bacterial flora is greatly enhanced due to excessive phosphorus release, the phosphorus content of 5 th and 6 th batches of water is even less than 0.1mg/L, then each batch of water is slowly increased, when the water discharge value is close to a set water discharge value (0.5 mg/L), the excessive phosphorus release is carried out again to strengthen the phosphorus-releasing bacterial flora, and the repeated treatment batches are required to be set in a debugging stage due to different water quality of each place. In the treatment of each batch of water, the supernatant from the sludge basin is also split for treatment.
(4) Repeating the steps (1), (2) and (3) after the nth batch is finished;
the present invention will be described in detail with reference to examples.
Example 1
The SBBR sewage treatment device for high-efficiency denitrification and dephosphorization is arranged at the municipal discharge outlet of sewage of a certain university, water is taken from a sewage well to an SBBR reactor for treatment, and the quality of raw sewage water is as follows: COD 300-500mg/L, total nitrogen 60-85 mg/L, ammonia nitrogen 59-84mg/L, and total phosphorus 6-9.5mg/L. The effective volume of the SBBR reactor is 22m < 2 >, the water output of each batch is 7m < 2 >, the water output of each batch is 6-7 batches per day, the daily average treatment capacity is 45m < 2 >, the water output of each batch is 18-20 batches per excessive phosphorus release, the COD (chemical oxygen demand) of the water quality of the water output is 30-40mg/L, the total nitrogen is less than 15mg/L, the ammonia nitrogen is less than 3mg/L, and the total phosphorus is less than 0.3mg/L.
The treated water is used for greening.
Example 2
The SBBR sewage treatment device for high-efficiency denitrification and dephosphorization is arranged under an office building of a water conservancy house, water is taken from a last-stage septic tank directly to an SBBR reactor for treatment, and the quality of raw sewage water is as follows: COD200-350mg/L, total nitrogen 75-80mg/L, ammonia nitrogen 60-75mg/L and total phosphorus 6-7mg/L. The effective volume of the SBBR reactor is 18m < 2 >, the water output of each batch is 6m < 2 >, the water output of each batch is 5-6 batches per day, the daily average treatment capacity is 40m < 2 >, the water output of each batch is 18-20 batches per excessive phosphorus release, the COD (chemical oxygen demand) of the water quality of the water output is 30-40mg/L, the total nitrogen is less than 15mg/L, the ammonia nitrogen is less than 3mg/L, and the total phosphorus is less than 0.3mg/L.
The sewage of the office building in 3-11 months each year is treated completely and used for greening.
Example 3
An SBBR sewage treatment device for high-efficiency denitrification and dephosphorization is arranged under a office building, water is taken from a last-stage septic tank to an SBBR reactor for treatment, and the quality of raw sewage water is as follows: COD 300-600mg/L, total nitrogen 80-90 mg/L, ammonia nitrogen 62-79mg/L and total phosphorus 7-9mg/L. The effective volume of the SBBR reactor is 20m < 2 >, the water output of each batch is 7m < 2 >, the water output of each batch is 5-7 batches per day, the daily average treatment capacity is 42m < 2 >, the water output of each batch is 18-20 batches per excessive phosphorus release, the COD (chemical oxygen demand) of the water quality of the water output is 30-40mg/L, the total nitrogen is less than 15mg/L, the ammonia nitrogen is less than 3mg/L, and the total phosphorus is less than 0.3mg/L.
The office building sewage is treated completely and used for greening.
It should be understood by those skilled in the art that the liquid level sensor 12, the dissolved oxygen sensor 13 and the pH and temperature sensor 14 according to the present embodiment all belong to the prior art, and products with different types and specifications can be purchased in the market according to specific requirements. For example, the liquid level sensor 12 used in the scheme is manufactured by Hangzhou joint inspection Automation technology Co., ltd, model number SIN-DY2900; the dissolved oxygen sensor 13 is manufactured by Hangzhou joint measurement automation technology Co., ltd, and the model is SIN-DO350; the pH and temperature sensor 14 is a Switzerland Metrohm combination pH electrode temperature sensor.
The foregoing is a principal feature of the present invention and its advantages, and it will be appreciated by those skilled in the art that the present invention is not limited by the foregoing embodiments, but rather by the principles of the present invention, which have been described in the foregoing embodiments and description, and various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or may be connected through an intermediary profile, or may be a communication between two components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (8)

1. The SBBR sewage treatment method for high-efficiency denitrification and dephosphorization is characterized by comprising the following steps of:
(1) Excessive phosphorus release stage
1) And (3) water inlet: starting a sewage pump (4) to feed water into the SBBR reactor (1) to reach the set water level H of the SBBR reactor (1) 1 Stopping the sewage pump (4), starting the carbon source adding metering pump (9) while water is fed, and stopping when the set quantity is reached;
2) Anoxic reaction: starting a small aeration fan (8) to stir gas, and monitoring a first selected operating frequency when a pH value and temperature value transmitted by a temperature sensor (14) are in a set value T interval by a PLC (programmable logic controller) program controller (16); the small aeration fan (8) intermittently operates, and the anoxic reaction is stopped when the operation time of the reaction stage reaches a set value t, and the reaction stage enters a standing precipitation stage;
3) Standing: standing for 30-50min;
4) And (3) water outlet: opening a second water outlet pneumatic valve (6), draining the SBBR (1) to a sludge tank (3), opening a flocculating agent adding metering pump (10) 3-8s after opening the second water outlet pneumatic valve (6), and when the water level of the SBBR (1) reaches a set water level H 3 Closing the second water outlet pneumatic valve (6) and the flocculant adding metering pump (10);
(2) Enhanced phosphorus release stage
1) And (3) water inlet: starting a sewage pump (4) to feed water into the SBBR reactor (1) to reach the set water level H of the SBBR reactor (1) 1 Stopping the sewage pump (4) when the sewage pump is stopped;
2) Anoxic reaction: starting a small aeration fan (8) to stir gas, and selecting a set first operating frequency when a PLC (programmable logic controller) (16) monitors that a pH value and a temperature value transmitted by a temperature sensor (14) are in a set value T interval; the small aeration fan (8) intermittently operates, and the anoxic reaction is stopped when the operation time of the reaction stage reaches a set value t, and the anoxic reaction enters an aerobic reaction;
3) And (3) aerobic reaction: starting a large aeration fan (7) to perform aeration, wherein a PLC (programmable logic controller) (16) monitors a second operation frequency selected when a pH and temperature sensor (14) returns a temperature value in a set value T interval, after the DO value reaches 2mg/l, continuing aeration for a set time, and when the change of the rising speed of the DO value reaches a set value, stopping the large aeration fan (7);
4) Standing: standing for 30-50min;
5) And (3) water outlet: opening a second water outlet pneumatic valve (6), draining the SBBR (1) to a sludge tank (3), opening a flocculating agent adding metering pump (10) 3-8s after opening the second water outlet pneumatic valve (6), and when the water level of the SBBR (1) reaches a set water level H 3 Closing the second water outlet pneumatic valve (6) and the flocculant adding metering pump (10);
(3) Formally water outlet stage
1) And (3) water inlet: starting a sewage pump (4) to react to SBBRThe water enters the reactor (1) to reach the set water level H of the SBBR reactor (1) 1 Stopping the sewage pump (4) when the sewage pump is stopped;
2) Anoxic reaction: starting a small aeration fan (8) to stir gas, and selecting a set first operating frequency when a PLC (programmable logic controller) (16) monitors that a pH value and a temperature value transmitted by a temperature sensor (14) are in a set value T interval; the small aeration fan (8) intermittently operates, and the anoxic reaction is stopped when the operation time of the reaction stage reaches a set value t, and the anoxic reaction enters an aerobic reaction;
3) And (3) aerobic reaction: starting a large aeration fan (7) to perform aeration, wherein a PLC (programmable logic controller) (16) monitors a second operation frequency selected when a pH and temperature sensor (14) returns that a temperature value is in a set value T interval, and stopping the large aeration fan (7) when the DO value reaches 2mg/l and then the aeration is continued for a set time and the change of the rising speed of the DO value reaches a set value;
4) Standing: standing for 30-50min;
5) Opening a first water outlet pneumatic valve (5), discharging or recycling the treated water in the SBBR reactor (1), and when the water level of the SBBR reactor (1) reaches H 2 Closing the first water outlet pneumatic valve (5) when in use;
when the liquid level meter of the regulating tank is at a low water level after the formal water outlet stage is finished, the whole system enters an idle standby state;
repeating steps 1) to 5) when the liquid level of the regulating reservoir is at a normal level, during which steps 1) are increased: starting a supernatant reflux pump (11) while a sewage pump (4) is started by a PLC (programmable logic controller) 16; processing a batch of water once by repeating the steps 1) to 5), setting n batches to be processed in a PLC (16), and uniformly spreading the supernatant of the sludge pond (3) into the water inflow of each batch when the 2 nd batch is fed into the water inflow of the n th batch so as to empty the sludge pond (3);
the SBBR reactor (1) is connected with a device for providing a carbon source, and a carbon source adding metering pump (9) is arranged on a pipeline between the device for providing the carbon source and the SBBR reactor (1);
the SBBR reactor (1) is respectively connected with a large aeration fan (7) and a small aeration fan (8) through an aeration pipe, and a pH and temperature sensor (14) is arranged in the SBBR reactor (1);
the SBBR reactor (1) is connected with the sludge tank (3) through a pipeline, the sludge tank (3) is connected with a device for providing flocculant, and a flocculant adding metering pump (10) is arranged on the pipeline between the sludge tank (3) and the device for providing flocculant;
the SBBR reactor (1) is provided with a communicating pipe connected with a pipeline between the sludge tank (3) and a device for providing flocculant, and the second water outlet pneumatic valve (6) is arranged on the communicating pipe;
a supernatant reflux pump (11) is arranged on a pipeline between the sludge pool (3) and the SBBR reactor (1).
2. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: the automatic water supply device is characterized in that the SBBR (1) is connected with the regulating tank (2) through a pipeline, a liquid level sensor (12) and a dissolved oxygen sensor (13) are arranged in the SBBR (1), a first water outlet pneumatic valve (5) and a second water outlet pneumatic valve (6) are arranged on the SBBR (1), and the liquid level sensor (12), the dissolved oxygen sensor (13), a pH and temperature sensor (14), the first water outlet pneumatic valve (5) and the second water outlet pneumatic valve (6) are electrically connected with the PLC (16).
3. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: the large aeration fan (7), the small aeration fan (8) and the PLC (programmable logic controller) are electrically connected with the frequency converter (15).
4. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 2, characterized in that: the sewage treatment device is characterized in that a sewage pump (4) is arranged in the regulating tank (2), and the sewage pump (4) is electrically connected with a PLC (programmable logic controller) 16.
5. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: the carbon source adding metering pump (9) is electrically connected with the PLC (16).
6. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: the flocculant adding metering pump (10) is electrically connected with the PLC (16).
7. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: when the aerobic reaction is finished in the formal water outlet stage, a PLC (16) monitors the pH value from the peak value after water inlet to the difference delta pH of the pH decrease at the end of the aerobic reaction, and the anaerobic reaction is repeated and a carbon source adding metering pump (9) is started at the same time; if the difference delta pH of the monitored pH drop is less than the set coefficient, the standing is directly carried out.
8. The SBBR wastewater treatment method for efficient denitrification and dephosphorization according to claim 1, characterized in that: the supernatant reflux pump (11) is electrically connected with the PLC (16).
CN201910781242.1A 2019-08-23 2019-08-23 SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization Active CN110563156B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910781242.1A CN110563156B (en) 2019-08-23 2019-08-23 SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910781242.1A CN110563156B (en) 2019-08-23 2019-08-23 SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization

Publications (2)

Publication Number Publication Date
CN110563156A CN110563156A (en) 2019-12-13
CN110563156B true CN110563156B (en) 2023-12-26

Family

ID=68775808

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910781242.1A Active CN110563156B (en) 2019-08-23 2019-08-23 SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization

Country Status (1)

Country Link
CN (1) CN110563156B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113480091A (en) * 2021-07-07 2021-10-08 宁夏元蔚环保科技有限公司 SBBR sewage treatment device and method for removing phosphorus from side stream
CN115057539A (en) * 2022-06-13 2022-09-16 山东科融资本控股有限公司 Oxidation desulfurization liquid medicine adds device for environmental protection

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304590A (en) * 1993-04-20 1994-11-01 Fujita Corp Batch type activated sludge treatment
CN1837092A (en) * 2006-04-17 2006-09-27 彭永臻 Optimization control system for anaerobic and aerobic biological denitrification process and on-line control method therefor
CN101891345A (en) * 2010-07-13 2010-11-24 重庆大学 Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration
CN107311308A (en) * 2016-04-26 2017-11-03 苏州科技学院 A kind of biomembrance process synchronously removes the technique with enriched phosphorus
CN206624748U (en) * 2017-03-30 2017-11-10 石博诚 A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization
CN109607774A (en) * 2019-01-11 2019-04-12 长安大学 A kind of advanced nitrogen dephosphorization process based on SBBR
CN211004785U (en) * 2019-08-23 2020-07-14 宁夏元蔚环保科技有限公司 SBBR sewage treatment plant of high-efficient nitrogen and phosphorus removal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101519265B (en) * 2009-04-09 2011-07-13 孙友峰 Sewage treatment process and system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304590A (en) * 1993-04-20 1994-11-01 Fujita Corp Batch type activated sludge treatment
CN1837092A (en) * 2006-04-17 2006-09-27 彭永臻 Optimization control system for anaerobic and aerobic biological denitrification process and on-line control method therefor
CN101891345A (en) * 2010-07-13 2010-11-24 重庆大学 Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration
CN107311308A (en) * 2016-04-26 2017-11-03 苏州科技学院 A kind of biomembrance process synchronously removes the technique with enriched phosphorus
CN206624748U (en) * 2017-03-30 2017-11-10 石博诚 A kind of municipal waste water treatment sludge minimizing intermittent motion apparatus for being interrupted dephosphorization
CN109607774A (en) * 2019-01-11 2019-04-12 长安大学 A kind of advanced nitrogen dephosphorization process based on SBBR
CN211004785U (en) * 2019-08-23 2020-07-14 宁夏元蔚环保科技有限公司 SBBR sewage treatment plant of high-efficient nitrogen and phosphorus removal

Also Published As

Publication number Publication date
CN110563156A (en) 2019-12-13

Similar Documents

Publication Publication Date Title
CN110002592B (en) Device and method for treating domestic sewage by coupling short-cut denitrification-sludge fermentation with anaerobic ammonia oxidation system
Tilche et al. Biological phosphorus and nitrogen removal in a full scale sequencing batch reactor treating piggery wastewater
CN103936151B (en) A kind of method of low carbon source urban sewage denitrogenation dephosphorizing
CN110330180B (en) Mainstream shortcut nitrification-denitrification/anaerobic ammonia oxidation system and method
CN113072183B (en) Method and device for realizing mainstream anaerobic ammonia oxidation in-situ enrichment through traditional activated sludge
CN102079609B (en) Quick start method for short-range deep denitrification by SBR (Sequencing Batch Reactor) process at low temperature
CN112250175B (en) Device and method for realizing deep denitrification of municipal sewage by virtue of integrated shortcut nitrification-anaerobic ammonia oxidation coupling with endogenous shortcut denitrification
CN110563156B (en) SBBR sewage treatment device and method for high-efficiency denitrification and dephosphorization
CN113233592B (en) Treatment device and method for realizing synchronous deep denitrification and decarbonization of advanced landfill leachate and domestic sewage
CN112607863B (en) Device and method for realizing deep nitrogen and phosphorus removal of low C/N ratio municipal sewage combined sludge fermentation product by utilizing PN/A process
CN113200600B (en) Device and method for treating high-ammonia-nitrogen organic matter wastewater by semi-shortcut nitrification anaerobic ammonia oxidation and serial shortcut denitrification anaerobic ammonia oxidation
CN102502965A (en) Method and device for controlling biological treatment process of early landfill leachate
CN113880251A (en) Method and device for realizing deep denitrification and sludge reduction of high ammonia nitrogen wastewater by using sludge fermentation liquor
CN112250183A (en) Device and method for treating urban sewage by combining whole-course nitrification with sludge fermentation and coupling short-range denitrification anaerobic ammonia oxidation
CN110723815B (en) Method for rapidly realizing shortcut nitrification of municipal sewage through traditional activated sludge
CN113716693A (en) Device and method for deep denitrification of landfill leachate based on anaerobic-aerobic-anoxic operation
CN110078213B (en) Device and method for strengthening stable operation of anaerobic ammonia oxidation treatment of municipal sewage by SBR/anaerobic baffle reactor
CN111661925A (en) Enhanced denitrification system and method for treating low C/N urban sewage continuous flow
CN112250179B (en) Device and method for realizing short-cut nitrification-anaerobic ammonia oxidation denitrification in sewage treatment continuous flow process through sludge fermentation product
CN113480001A (en) Two-stage hydrolysis acidification short-cut denitrification anaerobic ammonia oxidation process for removing nitrogen by taking granular organic matters as carbon source
CN215249864U (en) SBBR sewage treatment plant of side flow dephosphorization
CN211004785U (en) SBBR sewage treatment plant of high-efficient nitrogen and phosphorus removal
CN109607774B (en) SBBR-based deep nitrogen and phosphorus removal process
CN114956333B (en) System and method for rapidly realizing partial short-cut nitrification sludge granulation
CN113480091A (en) SBBR sewage treatment device and method for removing phosphorus from side stream

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