CN108059307A - The waste water treatment system and its operation method of synchronous carbon and nitrogen removal - Google Patents
The waste water treatment system and its operation method of synchronous carbon and nitrogen removal Download PDFInfo
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- CN108059307A CN108059307A CN201711453388.0A CN201711453388A CN108059307A CN 108059307 A CN108059307 A CN 108059307A CN 201711453388 A CN201711453388 A CN 201711453388A CN 108059307 A CN108059307 A CN 108059307A
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- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- 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]
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- 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
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Abstract
A kind of waste water treatment system and its operation method of synchronization carbon and nitrogen removal, the waste water treatment system include:Anaerobic membrane bioreactor, denitrification reactor, integral part nitrosation anaerobic ammonia oxidation reactor and automatic control unit.The waste water treatment system and its operation method of the synchronous carbon and nitrogen removal of the present invention can be used for processing high-enriched organics, high-concentration ammonia nitrogenous wastewater, can synchronously remove removal organic polluter and ammonia nitrogen, and recycle biomass energy, reduce aeration energy consumption, shorten technological process.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to it is a kind of synchronization carbon and nitrogen removal waste water treatment system and its
Operation method.
Background technology
China's industrial wastewater has the characteristic feature that discharge capacity is big, pollutant concentration is high, treatment effeciency is low.In recent years, it is right
It is too numerous to enumerate in the independent treatment research of high concentrated organic wastewater, high ammonia-nitrogen wastewater.But for the synchronization of high concentrated organic wastewater
Efficient carbon and nitrogen removal research is then rarely reported.In fact, high concentrated organic wastewater anaerobic digestion solution have high ammonia nitrogen, low-carbon and nitrogen
Than feature, the advantage of suitable anaerobic ammonia oxidation process denitrogenation processing is made it have.This is just anaerobic membrane bioreactor and anaerobism
The combination of ammonia oxidation process provides advantage.
Anaerobic membrane bioreactor technology can effectively overcome the existing production first a heatable brick bed bacterium of conventional anaerobic digestion technology it is slow-growing,
Concentration is low, microorganism is easy to run off, sludge retention time (SRT) and hydraulic detention time (HRT) cannot separate, anti-shock loading energy
The deficiencies of power is weak, it is independent HRT and SRT are operated, retain methanogen while effectively catching other microorganisms, improve it is dirty
It contaminates object removal effect while UF membrane can further improve effluent quality.But in practical applications, there are reactors for the technology
It is easy to be acidified (such as starch wastewater treatment) or basicity increase (such as pig-farm wastewater processing) and occur COD removal effects in the process of running
The problems such as fruit is unstable and aerogenesis is ineffective and fouling membrane influences water yield.And traditional bio-denitrification technology nitrification-anti-
Nitration processes, high energy consumption, technological process are long, and need to add outer carbon source (methanol etc.) in denitrification process and add operation into
This, causes it not have significant advantage compared with other Process of Biological Nitrogen Removal such as Anammox technology.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the invention to provide a kind of waste water treatment systems of synchronous carbon and nitrogen removal
And its operation method, to solve at least one of above-mentioned technical problem.
The present invention is achieved through the following technical solutions:
As one aspect of the present invention, a kind of waste water treatment system of synchronous carbon and nitrogen removal is provided, including:
Anaerobic membrane bioreactor receives pending waste water, carries out Anaerobic Digestion to waste water, removes in waste water
Oxygen consumption organic;
Denitrification reactor, the water outlet of the reception anaerobic membrane bioreactor and following integral part nitrosation-
The recirculation water of anaerobic ammonia oxidation reactor carries out denitrification denitrogenation processing, removes to denitrogenation of waste water and further oxygen consumption organic,
It is carried out at the same time runoff investigation;
Integral part nitrosation-anaerobic ammoxidation reactor receives the water outlet of the denitrification reactor, carries out sub-
Nitration-anaerobic ammoxidation processing, removes the ammonia nitrogen in waste water;And
Automatic control unit carries out wastewater treatment process monitoring in real time and control,
Wherein, automatic control unit controls the anaerobic membrane biosystem anti-by monitoring the liquid level of the denitrification reactor
Answer the water yield of device, the inflow of the integral part nitrosation-anaerobic ammoxidation reactor and from the integral type portion
Nitrosation-anaerobic ammoxidation reactor is divided to be back to the water of the denitrification reactor.
Further, the waste water treatment system of the synchronous carbon and nitrogen removal further includes tubular membrane component, passes through circulating pump
It is connected with the anaerobic membrane bioreactor, UF membrane is carried out to the water outlet of the anaerobic membrane bioreactor;Preferably, institute
Tubular membrane component is stated as inner pressed hyperfiltration membrane assembly or micro-filtration membrane module.
Further, the water outlet of the tubular membrane component includes:Produce the mouth of a river, the water after UF membrane through the production mouth of a river into
Enter the denitrification reactor;And circulation port, it is connected by pipeline with the anaerobic membrane bioreactor.
Further, the waste water treatment system of the synchronous carbon and nitrogen removal further includes gas metering system, described in metering
The aerogenesis of anaerobic membrane bioreactor, and signal is accessed into automatic control unit;The gas metering system includes gas buffer
Bottle and electronic gas flowmeter.
Further, the adjustable agitating paddle of speed, liquid level sensor, pH electrodes are equipped in the anaerobic membrane bioreactor
With ORP electrodes, automatic control unit is connected to by transmitter;
Further, the adjustable agitating paddle of speed and liquid level sensor are equipped in the denitrification reactor, passes through pick-up
Device is connected to automatic control unit;
Further, be equipped in the integral part nitrosation-anaerobic ammoxidation reactor the adjustable agitating paddle of speed,
Liquid level flowmeter sensor, DO electrodes, pH electrodes, ORP electrodes and ammonia nitrogen electrode, automatic control unit is connected to by transmitter;
The anaerobic membrane bioreactor and the integral part nitrosation-anaerobic ammoxidation reactor are all equipped with acid solution
It adjusts tank and lye adjusts tank, to realize regulation and control of the automatic control unit to inside reactor acid-base property.
Further, the anaerobic membrane bioreactor and the integral part nitrosation-anaerobic ammoxidation reactor
Outside is equipped with insulation jacket, and passes through pipeline and be connected with same water bath equipment.
Further, aeration plate or air stone are equipped in the integral part nitrosation-anaerobic ammoxidation reactor, it is empty
Gas passes sequentially through aeration pump and gas flow meter into the aeration plate or air stone.
Further, the inlet bucket is driven through pipeline by external peristaltic pump and intake.
Further, the setting height(from bottom) of the denitrification reactor is higher than the integral part nitrosation-anaerobic ammonia oxygen
Change the setting height(from bottom) of reactor.
As another aspect of the present invention, a kind of wastewater treatment method of synchronous carbon and nitrogen removal is provided, using foregoing
The waste water treatment system of synchronous carbon and nitrogen removal, comprises the following steps:
Waste water is delivered to the anaerobic membrane bioreactor for being inoculated with anaerobically digested sludge, and the oxygen consumption removed in waste water is organic
Object, while generate the undegraded organic matter in part and ammoniacal nitrogen;
The water outlet of the anaerobic membrane bioreactor enters denitrification reactor through UF membrane, for its provide denitrogenation matrix it
One organic matter;
The water outlet of the denitrification reactor enters the integral part nitrosation-anaerobic ammoxidation reactor, passes through
Integral part nitrosation-anaerobic ammoxidation reaction removal ammonia nitrogen;
A part for the water outlet of the integral part nitrosation-anaerobic ammoxidation reactor is back to denitrification reactor
The nitrate nitrogen of one of denitrogenation matrix is provided for it.
Further, when the denitrification reactor there are two when, in wastewater treatment process, the automatic control unit prison
The liquid level of two parallel denitrification reactors is surveyed, realizes the anaerobic membrane bioreactor and interval to continuously running
The linking of the integral part nitrosation-anaerobic ammoxidation reactor of operation meets the water demand of each reactor:
Control reaches the denitrification reactor of liquid level requirement and integral part nitrosation-anaerobic ammoxidation reactor
It is quiet simultaneously heavy, wait draining;At the same time, control is not up to the denitrification reactor reception anaerobic membrane of liquid level requirement
The water outlet of bioreactor and the recirculation water of the integral part nitrosation-anaerobic ammoxidation reactor;
If two denitrification reactors are not up to liquid level requirement, control the water outlet of anaerobic membrane bioreactor into
Enter the relatively high denitrification reactor of liquid level, stop water inlet after reaching liquid level requirement, with integral part nitrosation-detest
Synchronously quiet heavy, the wait draining of anaerobic ammonium oxidation reactor.
It can be seen from the above technical proposal that the waste water treatment system and its operation method of the synchronous carbon and nitrogen removal of the present invention
It has the advantages that:
(1) joint is a variety of in line electrode, and real-time monitor in reaction system respectively has related parameter, grasps reactor in time and runs
State, and pass through PLC system and control its overall operation, high degree of automation, operation and maintenance simplicity;
(2) with relatively low energy expenditure to realize highly concentrated organic pollution using shorter technological process synchronous with ammonia nitrogen
Removal;
(3) dexterously realized to the anaerobic membrane bioreactor that continuously runs by two parallel denitrification reactors and
The linking conversion of the anaerobic ammonia oxidation reactor of intermittent duty;
(4) denitrification reactor is also further removing in addition to the reactor for playing an important role of to be connected continuous-intermittent duty
The pollutant entirety removal effect of reactor is improved while organic pollution and denitrogenation, effectively alleviates follow-up anaerobism ammonia oxygen
The organic inhibition changed.
Description of the drawings
Fig. 1 is the waste water treatment system schematic diagram of synchronous carbon and nitrogen removal in the embodiment of the present invention;
【Reference sign】
1- inlet water tanks;2- anaerobic membrane bioreactors;
3- gas buffer bottles;4- electronic gas flowmeters;
5- tubular membrane components;6- denitrification reactors;
8- automatic control units;9- remote control computers;
7- integral part nitrosation-anaerobic ammoxidation reactors.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
The invention discloses a kind of waste water treatment system and its operation method of synchronous carbon and nitrogen removal, the wastewater treatment systems
System includes:Anaerobic membrane bioreactor, denitrification reactor, integral part nitrosation-anaerobic ammoxidation reactor and from
Dynamic control unit.The waste water treatment system and its operation method of the synchronous carbon and nitrogen removal of the present invention can be used for processing high concentration organic
Object, high-concentration ammonia nitrogenous wastewater can synchronously remove removal organic polluter and ammonia nitrogen, and recycle biomass energy, reduce aeration energy consumption,
Shorten technological process.
Specifically, as one aspect of the present invention, a kind of waste water treatment system of synchronous carbon and nitrogen removal is provided, Fig. 1 is
The waste water treatment system schematic diagram of synchronous carbon and nitrogen removal.
As shown in Figure 1, the device includes:Inlet water tank 1, anaerobic digestion reaction vessel 2, gas buffer bottle 3, electronic gas flow
Meter 4, tubular membrane component 5, denitrification reactor 6, integral part nitrosation-anaerobic ammoxidation reactor 7, automatic control unit
8 remote control computers;Auxiliary device has acid solution to adjust tank, lye adjusting tank, water-bath heat-preserving equipment, aerator.
Each component of the waste water treatment system of the present embodiment synchronization carbon and nitrogen removal is described in detail below.
Inlet bucket 1 is driven through pipeline by external peristaltic pump and intake.
Anaerobic membrane bioreactor 2 receives the waste water of inlet bucket, carries out Anaerobic Digestion to waste water, removes waste water
In oxygen consumption organic.
Denitrification reactor 6 receives the water outlet of anaerobic membrane bioreactor, denitrification denitrogenation processing is carried out, to waste water
Denitrogenation simultaneously further removes oxygen consumption organic, is carried out at the same time runoff investigation;The setting height(from bottom) of denitrification reactor 6 is higher than integral type
The setting height(from bottom) of partial nitrification-anaerobic ammonia oxidation reactor 7.
Integral part nitrosation-anaerobic ammoxidation reactor 7 receives the water outlet of denitrification reactor, carries out nitrous
Change-Anammox processing, removes the ammonia nitrogen in waste water;It is equipped with and exposes in integral part nitrosation-anaerobic ammoxidation reactor 7
Gas disk or air stone, air pass sequentially through aeration pump and gas flow meter and enter aeration plate or air stone.Anaerobic membrane biological reaction
There is insulation jacket outside device 2 and integral part nitrosation-anaerobic ammoxidation reactor 7, and pass through pipeline and set with same water-bath
It is standby to be connected.
Automatic control unit 8 carries out wastewater treatment process monitoring in real time and control by the device being installed in reactor
System, anaerobic membrane bioreactor 2 is interior to be equipped with the adjustable agitating paddle of speed, and liquid level sensor, pH electrodes and ORP electrodes pass through change
Device is sent to be connected to automatic control unit;The adjustable agitating paddle of speed and liquid level sensor are equipped in denitrification reactor 6, passes through change
Device is sent to be connected to automatic control unit;The adjustable stirring of speed is equipped in integral part nitrosation-anaerobic ammoxidation reactor 7
Paddle, liquid level flowmeter sensor, DO electrodes, pH electrodes, ORP electrodes and ammonia nitrogen electrode, automatic control unit is connected to by transmitter;
Anaerobic membrane bioreactor 2 and integral part nitrosation-anaerobic ammoxidation reactor 7 are all equipped with acid solution and adjust tank and lye tune
Tank is saved, to realize regulation and control of the automatic control unit to inside reactor acid-base property.
Wherein, 8 preferred PLC automatic control units of automatic control unit, by the liquid for monitoring two denitrification reactors 6
Position, control the water yield of anaerobic membrane bioreactor 2, integral part nitrosation-anaerobic ammoxidation reactor 7 inflow with
And the water of denitrification reactor 6 is back to from integral part nitrosation-anaerobic ammoxidation reactor 7.
Tubular membrane component 5 is connected by circulating pump with anaerobic membrane bioreactor 2, to anaerobic membrane bioreactor 2
Water outlet carries out UF membrane;Tubular membrane component 5 is inner pressed hyperfiltration membrane assembly or micro-filtration membrane module.The water outlet bag of tubular membrane component
It includes:Is produced from the mouth of a river, the water after UF membrane enters denitrification reactor through producing the mouth of a river;And circulation port, it is given birth to by pipeline and anaerobic membrane
Object reactor connects.
Gas metering system, measures the aerogenesis of anaerobic membrane bioreactor, and signal is accessed automatic control unit;Gas
Body metering system includes gas buffer bottle 3 and electronic gas flowmeter 4.
As another aspect of the present invention, a kind of wastewater treatment method of synchronous carbon and nitrogen removal is provided.
Before reactor coordinated operation, need respectively tame each reactor, start.The inoculation mud of anaerobic digestion reaction vessel
Excess sludge or other anaerobically digested sludges may be selected;The inoculation mud of denitrification reactor may be derived from lacking for municipal sewage plant
Oxygen pond sludge;The reactor sludge of same process may be selected in the inoculation mud of integral part nitrosation-anaerobic ammoxidation reactor,
Or by nitrifying sludge and anaerobic ammonium oxidation sludge combined inoculation.After each several part reactor all succeeds startup, link
Operation regulation and control experiment.It is specific as follows:
Inlet bucket is connected through peristaltic pump with anaerobic digestion reaction vessel;Liquid level gauge, pH electrodes are equipped in anaerobic digestion reaction vessel
With ORP electrodes, liquid level gauge and pH electrodes and ORP electrodes are by real-time level, pH and ORP data transmissions to PLC system, and the latter is through patrolling
The start and stop for judging feedback control acid adding plus alkali pump are collected, the pH in reactor is made to maintain most suitable scope (6.8~7.2).Film water outlet
By diaphragm pump Continuous Drive, the big I of water yield is adjusted by the circulating valve amplitude of unscrewing, front and rear point of tubular membrane
Not She You pressure gauge and flowmeter, online can by its transmembrane pressure TMP (pressure evaluation), offline can be by checking water yield
Fouling membrane situation is monitored and judged respectively, to take suitable Membrane cleaning maintenance strategy.
Film produces water through motor-driven valve control into one in two parallel denitrification reactors, and criterion is liquid level ratio
Compared with No. 1 denitrification reactor is preferentially obtained into water when liquid level is identical, and otherwise the high person of liquid level obtains it.When a certain denitrification reactor
Water inlet liquid level reach setting high level when, stop water inlet, continue to stir, at this time film production water through robot control system(RCS) control enter another liquid
Position is not up to the denitrification reactor of setting high level.Liquid level is set to reach the denitrification reactor and integral part for having arrived setting high level
Nitrosation-anaerobic ammoxidation reactor is synchronously quiet heavy, after the latter's draining (refluxing portion enters another denitrification reactor) afterwards etc.
It treats that certain time carries out draining again, is stirred after draining;Treat that the liquid level of another denitrification reactor reaches setting high level
When the reactor start to receive film production water, there may come a time when also to have the recirculation water of anaerobic ammonia oxidation reactor.Ibid, constantly follow
Ring.
After denitrification reactor water outlet enters SBR (integral part nitrosation-anaerobic ammoxidation reactor), PLC system
The start and stop namely the start and stop of denitrification reactor water outlet that it is intake by Liquid level pass through intermittent aerating or continuous exposure in the process
The depressed termination closed ammonia nitrogen node and (such as 30mg/L) is set to control reaction carries out continuing stirring, quiet heavy and draining afterwards.SBR
PH parameter informations in reactor feedback control acid adding or can add the start and stop of alkali pump, and reaction system is made to maintain optimal pH scope
(6.8~7.8);ORP or DO electrodes reading can help to run the Redox Condition that controllers judge reaction system, can play
Early warning, adjusting control effect.
The carrying out practically step of sbr reactor device is as follows:
Continuous aeration system
(1) on after an end cycle, agitating paddle is in opening.After a new cycle starts, PLC control anti-nitration reactions
Device outlet valve is opened, and liquid level gradually rises in SBR, and after liquid level gauge detects target high liquid level, PLC system control denitrification is anti-
Device outlet valve is answered to close, i.e. the water inlet of sbr reactor device stops.
(2) after water inlet stops, aerating system starts, and controls DO concentration in SBR by flowmeter, ensures NO in SBR2 -- N is dense
Spend it is moderate, i.e., not higher than threshold value (such as 20.00mgL-1).With short distance nitration and while two processes of Anammox into
Row, monitor the ammonia nitrogen of the ammonia nitrogen concentration variation in SBR in real time persistently reduces in line electrode reading.
(3) retention concentration value (such as the 30.00mgL of ammonia nitrogen is controlled-1), when ammonia nitrogen drops to the value in line electrode reading
When, PLC control aerating systems stop, and DO concentration can be rapidly decreased to 0.00mgL in system-1, SBR enters agitation phases.
(4) after agitation phases duration, PLC control agitating paddles are stopped, and SBR enters precipitate phase, and sludge sinks
It forms sediment in SBR bottoms, realizes mud-water separation.
(5) after precipitating duration, draining electrically operated valve is opened in PLC controls, and SBR enters bleeding stage.The fast prompt drop of liquid level
It is low, when reaching the reflux liquid level of setting, water outlet motor-driven valve is closed, reflux motor-driven valve is opened, when liquid level is down to target low liquid level
Afterwards, PLC controls reflux electrically operated valve is closed.Meanwhile agitating paddle starts, SBR enters the idle stage.Its idle duration depends on anti-
The liquid level of nitrator, the denitrification reactor for reaching liquid level high level at first take the lead in carrying out quiet heavy, draining supply sbr reactor device
The i.e. new cycle starts.
Intermittent Aeration System
(1) on after an end cycle, agitating paddle is in opening.After a new cycle starts, PLC control anti-nitration reactions
Device outlet valve is opened, and liquid level gradually rises in SBR, and after liquid level gauge detects target high liquid level, PLC system control intake pump stops
Only.
(2) after intake pump stops, aerating system starts, and SBR dissolved oxygen concentrations are controlled by flowmeter.In aeration phase,
Short distance nitration reaction occurs for ammonia nitrogen, pH is caused constantly to reduce, when pH decreases by the Δ pH of setting1Afterwards, PLC controls aerating system
Stop, DO concentration is rapidly decreased to 0.00mmgL-1.Reaction system individually carries out Anammox reaction afterwards, because consuming H+And
PH value is caused to be gone up, when pH amplification reaches the Δ pH of setting2, PLC control aerating systems reopen, are aerated and fill again for SBR
Oxygen is cycled in this way with carrying out short distance nitration reaction.Period, with replacing for short distance nitration and two reaction process of Anammox
It carries out, ammonia nitrogen is constantly consumed in SBR, and ammonia nitrogen is persistently reduced in line electrode reading.
(3) retention concentration value (such as the 30.00mgL of ammonia nitrogen is controlled-1), when ammonia nitrogen is down to the value in line electrode reading
When, PLC control aerating systems stop, and SBR enters agitation phases.
(4) after agitation phases duration, PLC control agitating paddles are stopped, and SBR enters precipitate phase, and sludge sinks
It forms sediment in SBR bottoms, realizes mud-water separation.
(5) after precipitating duration, draining electrically operated valve is opened in PLC controls, and SBR enters bleeding stage.The fast prompt drop of liquid level
It is low, when reaching the reflux liquid level of setting, water outlet motor-driven valve is closed, reflux motor-driven valve is opened, when liquid level is down to target low liquid level
Afterwards, PLC controls reflux electrically operated valve is closed.Meanwhile agitating paddle starts, SBR enters the idle stage.Its idle duration depends on anti-
The liquid level of nitrator, the denitrification reactor for reaching liquid level high level at first take the lead in carrying out quiet heavy, draining supply sbr reactor device
The i.e. new cycle starts.
Below in conjunction with specific embodiments and the drawings, waste water treatment system to synchronous carbon and nitrogen removal provided by the invention and its
Operation method is described in further detail.
Embodiment:Synchronous carbon and nitrogen removal bioreactor for treatment slaughtering wastewater
Slaughtering wastewater is simulated with the bioreactor for treatment of the present invention, is carried out using PLC control system combined method for regulating
Operation regulation and control.Water inlet used is artificial wastewater, and bulky grain object is removed without filtering, and formula is as shown in table 1,
1 artificial wastewater of table is formulated
2.0g/L NaHCO are added on the basis of first portion3.Influent COD be 8000 (± 2000) mg/L, ammonia nitrogen 200
(±10)mg/L.Anaerobic digestion reaction vessel used is to be thoroughly mixed formula reaction system;Membrane module is external tubular membrane.Other are anti-
Device and auxiliary device are answered with foregoing.Anaerobic reactor dischargeable capacity is 15L, and sludge concentration is in 8~15g/L, during reaction temperature is
Warm (35 ± 1 DEG C), HRT is determined by day output and dischargeable capacity.After anaerobic digestion and membrane filtration, organic matter obtains for water inlet
With degradation, removal rate is more than 90%;Ammonia nitrogen concentration increases, up to 600+20mg/L.After film water outlet enters denitrification reactor,
COD and nitrate nitrogen can be removed 10%~30% respectively, and for the waste water after sbr reactor device, ammonia nitrogen can be removed more than 90%.
To sum up, the waste water treatment system of synchronous carbon and nitrogen removal of the invention and its operation method can be used for processing high concentration to have
Machine object, high-concentration ammonia nitrogenous wastewater can synchronously remove removal organic polluter and ammonia nitrogen, and recycle biomass energy, reduce aeration energy
Consumption shortens technological process.
Particular embodiments described above has carried out the purpose of the present invention, technical solution and advantageous effect further in detail
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of waste water treatment system of synchronization carbon and nitrogen removal, which is characterized in that including:
Anaerobic membrane bioreactor receives pending waste water, carries out Anaerobic Digestion to waste water, removes the consumption in waste water
Oxygen organic;
Denitrification reactor receives the water outlet of the anaerobic membrane bioreactor and following integral part nitrosation-anaerobics
The recirculation water of ammonia oxidation reactor carries out denitrification denitrogenation processing, removes to denitrogenation of waste water and further oxygen consumption organic, simultaneously
Carry out runoff investigation;
Integral part nitrosation-anaerobic ammoxidation reactor receives the water outlet of the denitrification reactor, carries out nitrous
Change-Anammox processing, removes the ammonia nitrogen in waste water;And
Automatic control unit carries out wastewater treatment process monitoring in real time and control,
Wherein, automatic control unit controls the anaerobic membrane bioreactor by monitoring the liquid level of the denitrification reactor
Water yield, the inflow of the integral part nitrosation-anaerobic ammoxidation reactor and sub- from the integral part
Nitration-anaerobic ammoxidation reactor is back to the water of the denitrification reactor.
2. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the synchronization takes off except carbon
The waste water treatment system of nitrogen further includes tubular membrane component, is connected by circulating pump with the anaerobic membrane bioreactor, to institute
The water outlet for stating anaerobic membrane bioreactor carries out UF membrane;Preferably, the tubular membrane component is inner pressed hyperfiltration membrane assembly
Or micro-filtration membrane module.
3. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 2, which is characterized in that the tubular membrane component
Water outlet include:
Is produced from the mouth of a river, the water after UF membrane enters the denitrification reactor through the production mouth of a river;And
Circulation port is connected by pipeline with the anaerobic membrane bioreactor.
4. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the synchronization takes off except carbon
The waste water treatment system of nitrogen further includes gas metering system, measures the aerogenesis of the anaerobic membrane bioreactor, and by signal
Access automatic control unit;The gas metering system includes gas buffer bottle and electronic gas flowmeter.
5. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the anaerobic membrane biosystem
The adjustable agitating paddle of speed, liquid level sensor, pH electrodes and ORP electrodes are equipped in reactor, is connected to automatically by transmitter
Control unit;
The adjustable agitating paddle of speed and liquid level sensor are equipped in the denitrification reactor, automatic control is connected to by transmitter
Unit processed;
Be equipped in the integral part nitrosation-anaerobic ammoxidation reactor the adjustable agitating paddle of speed, liquid level flowmeter sensor,
DO electrodes, pH electrodes, ORP electrodes and ammonia nitrogen electrode, automatic control unit is connected to by transmitter;
The anaerobic membrane bioreactor and the integral part nitrosation-anaerobic ammoxidation reactor are all equipped with acid solution adjusting
Tank and lye adjust tank, to realize regulation and control of the automatic control unit to inside reactor acid-base property.
6. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the anaerobic membrane biosystem
Insulation jacket is equipped with outside reactor and the integral part nitrosation-anaerobic ammoxidation reactor, and pass through pipeline with it is same
One water bath equipment is connected.
7. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the integral part
Be equipped with aeration plate or air stone in nitrosation-anaerobic ammoxidation reactor, air pass sequentially through aeration pump and gas flow meter into
Enter the aeration plate or air stone.
8. the waste water treatment system of synchronization carbon and nitrogen removal according to claim 1, which is characterized in that the inlet bucket is by outer
The peristaltic pump in portion drives through pipeline and intakes;
The setting height(from bottom) of the denitrification reactor is higher than the installation of the integral part nitrosation-anaerobic ammoxidation reactor
Highly.
9. a kind of wastewater treatment method of synchronization carbon and nitrogen removal, utilizes the waste water of the synchronous carbon and nitrogen removal described in claim 1~8
Processing system, which is characterized in that comprise the following steps:
Waste water is delivered to the anaerobic membrane bioreactor for being inoculated with anaerobically digested sludge, removes the oxygen consumption organic in waste water, together
When generate the undegraded organic matter in part and ammoniacal nitrogen;
The water outlet of the anaerobic membrane bioreactor enters denitrification reactor through UF membrane, and one of denitrogenation matrix is provided for it
Organic matter;
The water outlet of the denitrification reactor flows into the integral part nitrosation-anaerobic ammoxidation reaction by gravity
Device reacts removal ammonia nitrogen by integral part nitrosation-anaerobic ammoxidation;
A part for the integral part nitrosation-anaerobic ammoxidation reactor water outlet is back to denitrification reactor and is carried for it
For denitrogenation matrix.
10. the wastewater treatment method of synchronization carbon and nitrogen removal according to claim 9, which is characterized in that when the denitrification
When there are two reactors, in wastewater treatment process, the automatic control unit monitors two parallel denitrification reactors
Liquid level, realize the integral part nitrosation of the anaerobic membrane bioreactor to continuously running and intermittent duty-
The linking of anaerobic ammonia oxidation reactor meets the water demand of each reactor:
Control the denitrification reactor for reaching liquid level requirement and integral part nitrosation-anaerobic ammoxidation reactor simultaneously
It is quiet heavy, wait draining;At the same time, control is not up to the denitrification reactor reception anaerobic membrane biosystem of liquid level requirement
The water outlet of reactor and the recirculation water of the integral part nitrosation-anaerobic ammoxidation reactor;
If two denitrification reactors are not up to liquid level requirement, the water outlet of anaerobic membrane bioreactor is controlled to enter liquid
The relatively high denitrification reactor in position stops water inlet, with integral part nitrosation-anaerobic ammonia after reaching liquid level requirement
Oxidation reactor synchronously quiet heavy, wait draining.
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