CN104843858B - A kind of sewage disposal system and operation method thereof - Google Patents
A kind of sewage disposal system and operation method thereof Download PDFInfo
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- CN104843858B CN104843858B CN201510263221.2A CN201510263221A CN104843858B CN 104843858 B CN104843858 B CN 104843858B CN 201510263221 A CN201510263221 A CN 201510263221A CN 104843858 B CN104843858 B CN 104843858B
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- 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
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- Activated Sludge Processes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of sewage disposal system and operation method thereof, wherein sewage disposal system includes the Aeration tank that can provide nitrification activity bacterial activity mud, also including that sewage nitrification activity flora separates domestication enrichment system, sewage nitrification activity flora separates domestication enrichment system and includes: a pH tester of monitor and detection sewage disposal system water inlet pH value；Removing the cyclone separator of inert substance in Aeration tank active sludge intermixture for separating, including housing and internal rabbling mechanism, housing bottom connects mud discharging mechanism by pipeline；The water intake mechanism being located between Aeration tank and cyclone separator；For retaining, be enriched with the membrane bioreactor of nitrification activity flora, connect with cyclone separator liquid-phase outlet；Receive monitoring signal, control the controller that water intake mechanism, cyclone separator and mud discharging mechanism run；The nitrification activity flora of enrichment is sent back to the backflow mechanism of Aeration tank.The sewage disposal system of the present invention can quickly be resumed production after prominent chance nitrification function inactivates.
Description
Technical field
The invention belongs to sewage treatment area, particularly relate to a kind of sewage disposal system and operation side thereof
Method.
Background technology
Conventional biological denitrificaion relies primarily on the Nitrification of nitrobacteria (Nitrifying bacteria)
Denitrification with denitrifying bacteria completes.The factor affecting biological denitrificaion is numerous, its principal element
Including acid-base value, temperature, dissolved oxygen, carbon-nitrogen ratio, recycle ratio, sludge age, oxidation-reduction potential,
Inhibitory substance etc..
Nitrobacteria belongs to from nourishing one's nature antibacterial, including two kinds of diverse metabolism groups: nitrous acid Pseudomonas
(nitrosomonas) and nitric acid Pseudomonas (nitrobacter), including bacillus, coccus and the spiral shell of form inequality
Rotation bacterium.Nitrosomas includes Nitromonas, Nitrosococcus, Nitrosospira and Asia
Antibacterial in nitrification leaf Pseudomonas；Nitromonas includes Nitrobacter, Nitrococcus and Nitrocystis
In antibacterial.Nitrobacteria is chemoheterotroph, autotrophy aerobic-type antibacterial, with carbon dioxide as carbon source,
The longest, growth rate is slow, and sludge yield is low, and environmental condition is the most sensitive to external world, so being difficult to
Maintain higher biological concentration, become the restriction factor of biological denitrification process.Therefore, nitrification function starts
Slowly, the not enough bottleneck having become restriction Nitrogen removal effect of nitrification ability.
In some urban wastewater treatment firms water inlet of China, industrial wastewater accounts for larger proportion, the most complete
Portion is industrial wastewater, contains the polluter having relatively high inhibition effect to biology, and temperature is relatively low in the winter time
Deng under unfavorable conditions, then the nitrobacteria inactivation being easily caused fragility when meeting impact load is the most complete
Death, causes the nitrification function of Sewage Plant to collapse, and recovers required time the longest, to town sewage plant
Stable operation brings great risk.
Add in sewage biological treatment system nitrifier be commonly referred to be recovery nitrification function most effective
Method.Nitrification reinforcement technique is broadly divided into two classes at present: a class is to use by one or more nitrifiers
The pure nitrification microbial inoculum of composition.Pure microbial inoculum is prepared by fermentation, and its advantage is that enrichment culture speed is fast, bacterium
Kind of purity is high, density is high, and shortcoming is that preparation cost is high, and there is strain variation and degenerate, additionally by
The most single in strain composition, poor with the biology community structure similar compatibility of actual water treatment system,
Adapt to ability the most in actual applications poor, it is not easy to effectively play biological reinforced function.Another kind of
It is to inoculate other Sewage Plant there is the activated sludge of nitrobacteria.This kind of mode overcomes in pure bacteria preparation
The problem existed, preparation cost is low, there is not strain variation and degenerates, and additionally nitrification population has many
Sample, biology community structure similar compatibility is good.But in open biological reaction pool, inoculate nitrification
Mixed liquor, nitrifier is easy to run off, and the nitrobacteria ratio retained in biological reaction pool is limited, adds
The purity of nitrification mixed liquor strain is relative with density the highest so that nitrification mixed liquor inoculum concentration is huge, fortune
Defeated extremely difficult, engineering exploitativeness is more weak.If adding a large amount of dehydrated sludge cake, although improve flora
Dosage, but in sludge dehydration process, the flocculant such as PAM added have impact on again nitrobacteria
Activity, the nitrification activity making seed sludge recovery Sewage Plant is the most difficult.
Therefore, in order to overcome in biological denitrification process, prominent nitrification function of meeting inactivates and needs fast quick-recovery raw
The problem produced, a kind of nitrifier of exploitation separates domestication enriching apparatus and Emergency use side targetedly
Method, the quick startup after nitrification function inactivates, reduce the operation risk of biological denitrificaion treatment process,
Improving the removal effect of biological denitrificaion, reduce and disposed processing cost, will more meet environment low-carbon (LC) can
The trend of sustainable development.
The patent of invention of Publication No. CN102674539A discloses a kind of based on membrane bioreactor
Nitrifying sludge efficiently concentrating culture systems and method, the basic characteristics of this invention are: add nutritional solution,
Carry out separating domestication enrichment culture to nitrifying bacteria community with membrane bioreactor system, with sending out of nitrification microbial inoculum
Ferment is cultivated and is compared, and considerably reduces the toxigenic capacity of nitrifier, and achieves nitrifier and culture medium
Being completely separated of matter, effectively prevent the nitrifier unnecessary loss in incubation.But the method
Owing to not having sludge carrier, the nitrifier of enrichment is in free state, easily causes Pore Blocking and film
Surface pollution, it is difficult to carry out production practices.
Summary of the invention
After the nitrification function inactivation of nitration treatment system in prior art, resume production required time
Long deficiency, it is an object of the invention to provide a kind of fast quick-recovery of energy after prominent chance nitrification function inactivates
The sewage disposal system produced.
A kind of sewage disposal system, including providing the Aeration tank of nitrification activity bacterial activity mud, also
Separating domestication enrichment system including sewage nitrification activity flora, described sewage nitrification activity flora separates tames and dociles
Change enrichment system to include:
Oneth pH tester of monitor and detection sewage disposal system water inlet pH value；
The cyclone separator of inert substance in Aeration tank active sludge intermixture is removed for separating, including
Housing and internal rabbling mechanism, housing bottom connects mud discharging mechanism by pipeline；
The water intake mechanism being located between Aeration tank and cyclone separator；
For retaining, be enriched with the membrane bioreactor of nitrification activity flora, go out with cyclone separator liquid phase
Mouth connection；
Receive monitoring signal, control the controller that water intake mechanism, cyclone separator and mud discharging mechanism run；
The nitrification activity flora of enrichment is sent back to the backflow mechanism of Aeration tank.
As preferably, described biofilm reactor includes reaction tank, is provided with membrane module in described reaction tank
And aeration tube, reaction tank is externally provided with the suction pump and aerator connected respectively with membrane module and aeration tube.
As preferably, in described reaction tank, it is provided with the liquidometer being electrically connected with the controller, described controller
Receive the signal of liquidometer, control and suck pump operation.
In order to make the nitrobacteria energy amount reproduction enrichment in reaction tank, as preferably, described reaction tank
Inside being provided with the 2nd pH tester being electrically connected with the controller, described membrane bioreactor also includes controlled
Nutritional solution throwing device and pH value adjusting means in described controller.
The pH value in the 2nd pH tester detection reaction tank in reaction tank, and testing result is passed
Being defeated by controller, controller is according to testing result control ph adjusting means, by reaction tank
Add pH value regulation liquid and regulate the pH value in reaction tank.
As preferably, described cyclone separator is divided into upper and lower two sections, and epimere is provided with impeller by permanent magnet
The agitator made, hypomere is provided with spiral winding.Can be formed after cyclone separator internal coiling coil electricity
Electromagnetic field.Active sludge intermixture separate in cyclone separator in while inert substance, in stirring
Magnetized under the permanent magnetic field of device impeller and the electromagnetic field effect of spiral winding, nitre in sewage can be improved
Change the activity of antibacterial.
As preferably, described epimere is 0.5～1.2 with the height ratio of hypomere, and the ratio of height to diameter of epimere is
0.5～1, the ratio of height to diameter of hypomere is 1.0～1.5.
Present invention also offers the operation method of above-mentioned sewage disposal system, including:
By water intake mechanism, the active sludge intermixture in Aeration tank is passed through eddy flow diverter, separates
It is passed through membrane bioreactor again after removing inert substance, in membrane bioreactor, throws in nutritional solution and alkali
Degree regulator cultivate, domestication, nitrifying bacteria community, by membrane filtration effect be enriched with nitrifying bacteria community, by
It is 6～15g/L that the outer row that has a rest controls the concentration of suspended solid in membrane bioreactor, controls nitrobacteria
Total amount and activity；
If the influent quality of sewage disposal system is normal, then water intake mechanism and cyclone separator are normally transported
OK, using the active sludge intermixture in sewage disposal system Aeration tank as substrate, input is to film continuously
Bioreactor, cultivates, tames, is enriched with nitrobacteria；
If the influent quality of sewage disposal system is abnormal, then stop water intake mechanism and the fortune of cyclone separator
OK, the input of active sludge intermixture is closed.
In, Aeration tank normal at operation of sewage disposal system, activated sludge has the bar of good nitrification activity
Start sewage nitrification activity flora under part and separate domestication enrichment system.
Described sewage disposal system influent quality just refers to, water inlet pH value (6～9) is normal,
Poisonous and harmful substance content does not produces harmful effect, at waste water to the activated sludge Nitrification of Aeration tank
Science and engineering skill normal operation, the nitrifying sludge in Aeration tank has good nitrification activity；Described sewage
Processing system influent quality is abnormal to be referred to, the abnormal operation making Aeration tank of water inlet occurs abnormal, nitrification
Mud has inactivation risk, if pH value is less than 6 or more than 9, or containing poisonous and harmfuls such as heavy metals
Material, and the persistent period is more than 10min.
If Aeration tank occurs that nitrification activity significantly declines, needs nitrification facilitation phenomenon, first adjust into
Water water quality, regulates Aeration tank operating condition, gets rid of the abnormal factors causing Aeration tank nitrification to inactivate, makes
After Aeration tank possesses inoculation nitrobacteria condition, then by the nitrobacteria that is enriched with in membrane bioreactor
By a certain amount of Aeration tank of sending back in batches, inoculate nitrobacteria, the nitrification merit of Aeration tank can be recovered rapidly
Can, recover properly functioning.
As preferably, during cyclonic separation, the rotating speed of impeller is 8～60r/min.
As preferably, during cyclonic separation, electromagnetic intensity is 0.04～0.06T, and magnetizing time is
20～40min.
As preferably, nutritional solution throwing device is built with comprising the preparations such as ammonium sulfate (or ammonium chloride)
High strength ammonia nitrogen solution, NH4 +The mass percent concentration of-N is 0.5%～5.0%.
As preferably, in the high strength ammonia nitrogen solution in nutritional solution throwing device, include by a definite proportion
The trace element mixed liquors such as the phosphate of example preparation and magnesium, calcium, ferrum, manganese, zinc, copper；Wherein
N[NH4 +-N]∶P[PO4 3+]=8: 1, Mg2+Concentration be 0.1～0.5mg/L, Ca2+Concentration be
0.01～0.1mg/L, Fe2+Concentration be 0.001～0.01mg/L, Mn2+Concentration be 0.001～
0.01mg/L、Cu2+Concentration be 0.0002～0.001mg/L.
Nutritional solution adds in membrane bioreactor by the first dosing pump by certain flow, high strength ammonia
The dosage standard of nitrogen solution is: in control membrane bioreactor, ammonia nitrogen volumetric loading is 1.5～4.5kg
/(m3·d)。
As preferably, in pH value adjusting means, add bicarbonate configuration solution by a certain percentage,
HCO3 2-Mass percent concentration be 0.5%～5.0%.
Being sent in membrane bioreactor by the second dosing pump to control its interior pH value, dosage is
4.0～4.5kg [HCO3 2-]/kg[NH4 +-N]。
As preferably, the pH value in described membrane bioreactor is controlled 7.5～9.0.
In the running of sewage disposal system, certain frequency monitoring sewage pressed by a pH tester
The pH value of processing system water inlet, monitoring frequency is 1～30min/ time, and indirect labor tests in water inlet
Poisonous and harmful substance content, regulation controls sewage nitrification activity flora and separates the fortune of domestication enrichment system
OK.
As preferably, during Aeration tank resumes operation, in membrane bioreactor, the nitrification of enrichment is thin
Bacterium is divided 2～4 times and adds to Aeration tank, adds total amount total less than nitrobacteria in membrane bioreactor
The 95% of amount, remainder carries out next round cultivation as strain, tames, is enriched with.
Compared with prior art, the method have the advantages that
A kind of sewage disposal system of the present invention, by a small amount of sewage sludge mixed liquor in Aeration tank through rotation
After flow separation removes the inert fraction such as silt, the zoogloea of solid in mixed liquor and liquid remain
Alkaline component, microcosmic salt, micro-nutrient composition be input in membrane bioreactor, add high strength ammonia
Nitrogen solution promotes nitrobacteria growth, and the nitrobacteria after enrichment is back in Aeration tank, for rapidly
Improve the quantity of nitrifier in Aeration tank.With the sewage sludge mixed liquor in Aeration tank as nitrifying bacteria enrichment
Microcosmic salt, trace element, the reagent consumption of pH regulator needed for nitrifying bacteria enrichment can significantly be saved by raw material；
Zoogloea also can provide substantial amounts of absorption interface to nitrifier, promotes nitrifier to be attached on zoogloea,
Avoid nitrifier to dissociate to grow and cause serious fouling membrane；Additionally, enrichment mud is dirty with Aeration tank
Mud has the strongest biological homology and substrate similarity, to Sewage Plant after therefore backflow adds use
Water quality has the strongest adaptability.
Accompanying drawing explanation
Fig. 1 is that the sewage nitrification activity flora of the present invention separates the structural representation taming enrichment system；
Fig. 2 is the plan structure schematic diagram of the cyclone separator of the present invention.
In figure: 11, housing；12, motor；13, impeller；14, spiral winding；15, intake pump；
16, sludge pump；17, water inlet；18, liquid-phase outlet；19, mud discharging mouth；21, membrane biological reaction
Device；22, nutritional solution throwing device；23, pH value adjusting means；24, the 2nd pH tester；25、
Liquidometer；26, aerator；27, suction pump；28, reflux pump；29, PLC substation；31, control
Device processed；32, a pH tester.
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, it should be pointed out that
Embodiment described below is intended to be easy to the understanding of the present invention, and it does not play any restriction effect.
The sewage disposal system of the present invention, including the aeration that can provide nitrification activity bacterial activity mud
Pond, also includes that sewage nitrification activity flora separates domestication enrichment system.As it is shown in figure 1, sewage nitrification
Activity flora separates domestication enrichment system, including cyclone separator, membrane bioreactor 21 and control
Device 31.
The housing 11 of cyclone separator is divided into epimere and the hypomere of cylindrical shape, and the specification of epimere isThe specification of hypomere isAnd the bottom of hypomere is inverted cone.
As depicted in figs. 1 and 2, the epimere of housing 11 is provided with the water inlet 17 tangent with housing, enters
The mouth of a river 17 is connected with intake pump 15, and intake pump 15 immerses in Aeration tank；It is additionally provided with liquid-phase outlet 18,
Liquid-phase outlet 18 is connected with membrane bioreactor 21 by pipeline；The bottom of housing 11 is provided with spoil disposal
Mouth 19, mud discharging mouth 19 is connected with sludge pump 16.
The center of cyclone separator housing 11 is provided with motor 12 and motor 12 from top to bottom
The power transmission shaft being connected, the permanent magnet agitator arm 13 being fixed on power transmission shaft, the hypomere of housing 11 sets
There is spiral winding 14.
The nutritious liquid throwing device 22 being connected with membrane bioreactor 21 and pH value adjusting means 23.
The dischargeable capacity of membrane bioreactor 21 reaction tank is 50m3, for certain Business of Global Chemical Pharmaceutical Enterprises SBR
The 2.5% of pond dischargeable capacity.Membrane module and the exposure retaining nitrobacteria it is provided with in membrane bioreactor 21
Trachea, membrane bioreactor 21 is externally provided with the aerator 26 being connected with aeration tube；Membrane bioreactor
It is additionally provided with externally discharged waste water outside 21 to keep the suction pump 27 of liquid level, nitrobacteria is back to Aeration tank
Reflux pump 28.
The 2nd pH tester 24, liquidometer 25 it is additionally provided with in membrane bioreactor 21.Liquidometer
25 are connected with suction pump 27 by PLC substation 29, the liquid level signal that PLC substation 29 will detect
Being transferred to controller 31, controller 31 passes through the operation of Level Detection output control suction pump 27, from
And control the liquid level in membrane bioreactor 21.
Nutritional solution throwing device 22 mainly includes nutritional solution basin, the first dosing pump；PH value regulation dress
Put 23 and mainly include alkali liquor basin, the second dosing pump.
Be provided with a pH tester 32 at the water inlet of sewage disposal system, a pH tester 32 with
Controller 31 electrically connects, and the pH value signal detected is transferred to controller 31, controller 31
Intake pump 15, cyclone separator and the operation of sludge pump 16 is controlled according to pH signal.
Embodiment 1
Certain Business of Global Chemical Pharmaceutical Enterprises, utilizes organic and inorganic raw material to prepare medicine and medicine by chemical reaction
Intermediate, the discharge capacity of enterprise production process and plant area's sanitary sewage is about 2000 tons/d, its water quality feelings
Condition is shown in Table 1.
This waste water processes and uses " Aerobic-anaerobic-SBR (sequencing batch active sludge) " technique, due to
The pharmacy that in waste water, organic concentration is high, salinity is high, pH value change is very big, composition is the most single is given up
Water, even some raw materials or product have bio-toxicity, or difficulty is biodegradable, and with seasonality
Production-stopping production cyclically-varying is more obvious, and regular Nitrification inactivation or system reboot occur
Situation.The inhibitory action bred nitrobacteria due to the high salt of waste water, high toxicity, resumed production
Journey adds pure culture nitrobacteria or other sewage disposal plant aeration tank activated sludge is all difficult to short-term
Endoadaptation, the cycle of resuming production is longer, even affects the normal production of enterprise.For reply Nitrification
Quick startup after fast quick-recovery and stopping production are resumed production after inactivation, supporting in waste water disposal facility
Implement a kind of sewage disposal system.
During the operation of sewage disposal system of the present invention, the intake pump 15 being immersed in Aeration tank will contain
The activated sludge having nitrifier is transported in cyclone separator, isolates the flora containing nitrifier magnetic
Change.The rotating speed of permanent magnetism impeller 13 controls at 25r/min, and spiral winding 14 is energized, and electromagnetic induction is strong
Degree is 0.045T.
Bacterium solution after magnetization is delivered in membrane bioreactor 21 by intake pump, and inert substance etc. is miscellaneous
Matter is discharged by sludge pump 16.
Contain in nutritional solution throwing device 22 by the high strength ammonia nitrogen solution of ammonium sulfate configuration 2%, this height
Possibly together with trace element such as phosphate and magnesium, calcium, ferrum, manganese, zinc, copper in concentration ammonia nitrogen solution, its
Middle N [NH4 +-N]∶P[PO4 3+]=8: 1, Mg2+Concentration be 0.2mg/L, Ca2+Concentration be
0.05mg/L、Fe2+Concentration be 0.005mg/L, Mn2+Concentration be 0.005mg/L, Cu2+Dense
Degree is 0.0005mg/L.The dosage standard of high strength ammonia nitrogen solution is: control in membrane bioreactor
Ammonia nitrogen volumetric loading is 2.1kg/ (m3·d)。
Sodium bicarbonate configuration solution, HCO is added by a certain percentage in pH value adjusting means 233 2-Matter
Amount percent concentration is 2.0%, and dosage is 4.3kg [HCO3 2-]/kg[NH4 +-N]。
For the growth and breeding of beneficially nitrifier, add nutritional solution by nutritional solution throwing device 22,
(the 2nd pH tests to monitor the change of pH in membrane bioreactor 21 by the 2nd pH tester 24
The monitoring frequency of instrument 24 is 5min/ time), and add alkali liquor by pH value adjusting means 23, make film
In bioreactor 21, the pH value of solution maintains 7.5～9.0, raw by reflux pump 28 outer row film
The bacterium solution of enrichment in thing reactor 21, in making membrane bioreactor, SS concentration controls 6～15g/L.
Irregularly discharge due to Business of Global Chemical Pharmaceutical Enterprises containing acid, containing alkali waste water, be provided with pH and automatically monitor
System, when a pH tester 32 detects the pH ＜ 6.0 or ＞ 9.0 that sewage disposal system is intake,
And after the persistent period is 10min, controller 31 automatically send instruction, stop motor 12, enter
Water pump 15, reflux pump 28, suction pump 27 run, and make membrane bioreactor 21 be in closed state,
Insulation blocking also backs up highly active nitrobacteria.
Certain produces discharge accident acid waste water, causes SBR nitrification function to inactivate, and water outlet ammonia nitrogen is dashed forward
So raising (as shown in table 1), pH tester 32 instruction protects membrane bioreactor 21
The nitrobacteria of interior enrichment so that it is uninfluenced, in then utilizing membrane bioreactor 21, backup is not
The operation of affected highly active nitrobacteria fast quick-recovery Aeration tank.
First edge " Aerobic-anaerobic-SBR " process adjustments mixed liquor pH value is about 7.5, opens aeration
Equipment, the nitrobacteria in membrane bioreactor 21 divides 2 times and adds to SBR pond, throws for the first time
Add 25m3Rear vexed exposure, after three days, second time adds 20m3Vexed exposure, ammonia nitrogen removal in vexed exposure to pond,
Being gradually increased into water again, water outlet reaches enterprise's pretreatment emission request (being shown in Table 1), resumes production successfully.
Remaining 5m3Carry out in next round cultivation, domestication, enrichment process as strain.
The water quality of certain Business of Global Chemical Pharmaceutical Enterprises waste discharge of table 1
Technical scheme and beneficial effect have been described in detail by embodiment described above,
It it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention, all
Any amendment of being made in the spirit of the present invention, supplement and equivalent etc., should be included in
Within protection scope of the present invention.
Claims (7)
1. a sewage disposal system, including the Aeration tank of offer nitrification activity bacterial activity mud,
It is characterized in that, also include that sewage nitrification activity flora separates domestication enrichment system, described sewage nitrification
Activity flora separates domestication enrichment system and includes:
Oneth pH tester of monitor and detection sewage disposal system water inlet pH value；
The cyclone separator of inert substance in Aeration tank active sludge intermixture is removed for separating, including
Housing and internal rabbling mechanism, housing bottom connects mud discharging mechanism by pipeline；Described cyclonic separation
Device is divided into upper and lower two sections, and epimere is provided with the agitator that impeller is made up of permanent magnet, and hypomere is provided with spiral
Coil；
The water intake mechanism being located between Aeration tank and cyclone separator；
For retaining, be enriched with the membrane bioreactor of nitrification activity flora, go out with cyclone separator liquid phase
Mouth connection；
Receive monitoring signal, control the controller that water intake mechanism, cyclone separator and mud discharging mechanism run；
The nitrification activity flora of enrichment is sent back to the backflow mechanism of Aeration tank.
Sewage disposal system the most according to claim 1, it is characterised in that described film is biological
Reactor includes reaction tank, is provided with membrane module and aeration tube in described reaction tank, and reaction tank is externally provided with point
The suction pump not connected with membrane module and aeration tube and aerator.
Sewage disposal system the most according to claim 2, it is characterised in that described reaction tank
Inside being provided with the liquidometer being electrically connected with the controller, described controller receives the signal of liquidometer, controls to take out
Sucking pump runs.
Sewage disposal system the most according to claim 2, it is characterised in that described reaction tank
Inside being provided with the 2nd pH tester being electrically connected with the controller, described membrane bioreactor also includes controlled
Nutritional solution throwing device and pH value adjusting means in described controller.
Sewage disposal system the most according to claim 1, it is characterised in that described epimere with
The height ratio of hypomere is 0.5～1.2, and the ratio of height to diameter of epimere is 0.5～1, and the ratio of height to diameter of hypomere is
1.0～1.5.
6. according to the operation method of the arbitrary described sewage disposal system of Claims 1 to 5, its feature
It is, including:
By water intake mechanism, the active sludge intermixture in Aeration tank is passed through eddy flow diverter, separates
It is passed through membrane bioreactor again after removing inert substance, in membrane bioreactor, throws in nutritional solution and alkali
Degree regulator cultivate, domestication, nitrifying bacteria community, by membrane filtration effect be enriched with nitrifying bacteria community, by
It is 6～15g/L that the outer row that has a rest controls the concentration of suspended solid in membrane bioreactor, controls nitrobacteria
Total amount and activity；
If the influent quality of sewage disposal system is normal, then water intake mechanism and cyclone separator are normally transported
OK, using the active sludge intermixture in sewage disposal system Aeration tank as substrate, input is to film continuously
Bioreactor, cultivates, tames, is enriched with nitrobacteria；
If the influent quality of sewage disposal system is abnormal, then stop water intake mechanism and the fortune of cyclone separator
OK, the input of active sludge intermixture is closed.
7. operation method as claimed in claim 6, it is characterised in that by described membrane biological reaction
PH value in device controls 7.5～9.0, and ammonia nitrogen volumetric loading is 1.5～4.5kg/ (m3·d)。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105439294B (en) * | 2015-12-30 | 2018-02-06 | 无锡普汇环保科技有限公司 | A kind of sewage treatment plant nitrifier in-situ enrichment and emergent addition method |
| CN107176680A (en) * | 2017-06-29 | 2017-09-19 | 安徽国能亿盛环保科技有限公司 | Closed type nitrobacteria denitrogenates sewage-treatment plant |
| CN109354186B (en) * | 2018-11-26 | 2022-06-24 | 同济大学 | Device for efficiently purifying and separating anaerobic ammonium oxidizing bacteria and application |
| CN111045370B (en) * | 2019-12-30 | 2021-01-08 | 贵州汇力自控工程有限公司 | Water treatment management and control system |
| CN111635014B (en) * | 2020-05-28 | 2022-05-10 | 上海化学工业区中法水务发展有限公司 | Method and device for rapidly recovering nitrification capacity of sewage plant |
| CN114426329B (en) * | 2020-10-10 | 2023-01-10 | 中国石油化工股份有限公司 | Method and device for enhancing nitrogen and phosphorus removal of SBR system |
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| CN202440409U (en) * | 2012-02-22 | 2012-09-19 | 北京朗新明环保科技有限公司南京分公司 | Membrane bioreactor front-arranged pretreatment device |
| CN102674539A (en) * | 2012-05-09 | 2012-09-19 | 浙江清华长三角研究院 | Nitrified sludge efficient enriching culture system based on membrane bioreactor and method |
| CN203382557U (en) * | 2013-06-09 | 2014-01-08 | 江苏远兴环保集团有限公司 | Novel submerged membrane bio-reactor device |
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