CN104556364B - The film bioreactor device of a kind of decelerating membrane pollution and sewage water treatment method - Google Patents
The film bioreactor device of a kind of decelerating membrane pollution and sewage water treatment method Download PDFInfo
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- CN104556364B CN104556364B CN201410816998.2A CN201410816998A CN104556364B CN 104556364 B CN104556364 B CN 104556364B CN 201410816998 A CN201410816998 A CN 201410816998A CN 104556364 B CN104556364 B CN 104556364B
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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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Abstract
The invention provides film bioreactor device and the sewage water treatment method of a kind of decelerating membrane pollution.Three phase separator is arranged in membrane bioreactor, defines the sewage-treatment plant of upper membrane reaction zone lower contacts zoneofoxidation.Sewage enters catalytic oxidation district from reactor bottom, enters film reaction district by three phase separator slit, retains under common effect at the absorption of activated sludge and diaphragm, it is achieved the process to sewage.Use and rotate membrane filtration module, increase rotational shear effect and pollute to slow down diaphragm, ensure that each diaphragm cleaning strength is uniform simultaneously, reduce and clean dead angle；Three phase separator connects has airway that catalytic oxidation district residue tolerance is imported upper membrane reaction zone, is used as the air purge source of membrane module, energy efficient；Online ultrasonic waves for cleaning, Chemical cleaning equipment are set, reduce the dismounting operation in diaphragm cleaning process.The sewage-treatment plant of the present invention and method, treatment effeciency is high, fouling membrane is little, stable effluent quality, convenient operation and management.
Description
Technical field:
The present invention relates to sewage treatment area, the membrane bioreaction of a kind of decelerating membrane pollution
Answer device device and sewage water treatment method.It has gathered three phase separation, ultrasound wave, GHK rotation
The multinomial technology such as membrane filtration, in-site chemical cleaning.
Background technology:
Membrane bioreactor (MBR) is a kind of new and effective sewage treatment process, obtains
The extensive concern of countries in the world.The efficient crown_interception of film, makes microorganism be completely trapped at reaction
In device, it is achieved that hydraulic detention time and the separation of sludge age, more effectively degradation of organic substances；
And replace the second pond in traditional handicraft by membrane separation device, reduce floor space；Solve
The effluent quality that the factors such as sludge bulking that traditional activated sludge process exists, sludge concentration is low cause
The most up to standard and that Treated sewage reusing rate is low problem.New and effective membrane bioreactor has become as dirt
Water processes and the important development trend of reuse.
Fouling membrane can cause flux depression, shortens the service life of film, increases membrane bioreaction
Answer the operating cost of device, be the bottleneck problem limiting membrane bioreactor widespread adoption.Cause
The reason that fouling membrane occurs mainly has 5: 1) film is to solute in solution and the absorption of colloid；2)
Mud flco is in the deposition on film surface；3) formation of film surface cake layer；4) shearing force causes
Pollutant separation diffusion；5) in During Process of Long-term Operation, pollutant at composition and are sent out in nature
Raw change.Wherein, fouling membrane can be divided into again can recover pollution and irrecoverable pollution, can
Recover pollution can pass through physical method (aeration, backwash etc.) and chemical method (sodium hypochlorite,
The soaking and washing such as sodium hydroxide, mineral acid) remove.
Three phase separator is mainly used in gas-solid-liquid three phase separation equipment.It is common in sewage disposal
Middle anaerobic biological reactor.Gas ascends into separator top and discharges along airway, mud
Grain is trapped within mud district, bottom along the automatic landing of swash plate, and sewage enters the settling section on top then
Water outlet.
Ultrasonic waves for cleaning be utilize ultrasound wave cavitation in a liquid, acceleration effect and
Direct flow effect to liquid and dirt directly, indirectly act on, make crud layer be disperseed, emulsifying,
Peel off and reach to clean purpose.
Rotating membrane filtration is the new membrane that GHK Environmental Technology AS of Germany releases
Isolation technics.The Film filter plate being fixed on pipe axle is under rotary electric machine drives, anti-at MBR
Answer in device and rotate, wash away at bubble, rotational shear, can be effective under the multiple action such as sewage injection
Decelerating membrane pollution, and ensure that the cleaning strength that each membrane module is subject to is uniform.But owing to its rotation sets
For being immersed in water body for a long time so that construction costs, operation cost amplitude improve, regular maintenance
Maintenance inconvenience.The present invention uses for reference film spin theory, designs and more meets the vertical of wastewater treatment in China
Formula is installed and is rotated membrane filtration module.
Summary of the invention:
, aeration serious for conventional membrane bioreactor film surface contamination cleans that energy consumption is high asks
Topic, the invention provides film bioreactor device and the sewage disposal side of a kind of decelerating membrane pollution
Method.The present invention utilizes three phase separator that membrane bioreactor is divided into upper and lower two parts, bottom
For catalytic oxidation district, top is film reaction district.Gas-solid-liquid is separated by three phase separator,
Make the Biomass that the holding of lower part catalytic oxidation district is higher, and the gas of collection is used for film reaction
District's stirring and face wash away, and reduce aeration energy consumption；Film reaction district configuration ultrasonic cleaning apparatus,
Utilize ultrasound wave " cavitation ", effectively prevent film surface from forming gel layer, reduce fouling membrane；
Meanwhile, three phase separator distinguishes catalytic oxidation district and film reaction, it is to avoid ultrasound wave pair
The destruction of active pollution index；The shear action rotating membrane filtration module generation can effectively slow down
Fouling membrane speed, also can make whole membrane module by impartial cleaning strength simultaneously, reduce cleaning dead
Angle；Repeat dismounting for avoiding membrane module Chemical cleaning to need, configuration online chemistry in film reaction district is clear
Wash equipment；Haptoreaction district has air water associating backwash function.Membrane module is at rotational shear, gas
Bubble wash away, sewage up-flow three-dimensional force field action under, can reduce to greatest extent face concentration polarization,
The fouling membrane that the factor such as gel layer, cake layer causes, configures online ultrasound wave, chemistry clearly simultaneously
Wash equipment, membrane module can be made to recover flux as early as possible, it is simple to operational management.
The film bioreactor device of the decelerating membrane pollution of the present invention, including: sewage pump,
Regulating reservoir, membrane bioreactor, perforation water-locator, aerator, aerating gas effusion meter, exposure
Gas blower fan, emptying/mud valve, filler, closing gate valve one, three phase separator, airway,
Close gate valve two, ultrasonic vibration box, membrane module, supersonic generator, electric rotating machine, pressure
Table, suction water pump, miscarriage water ga(u)ge, product water tank, chemical storage tank, backwash water
Pump, backwash water pipeline one, backwash water pipeline two and multiple connecting line and valve；Film is biological
Reactor is hollow container, and in membrane bioreactor, bottom is provided with perforation water-locator, middle part
Being provided with three phase separator, top is provided with membrane module；Perforation water-locator be arranged over aerator,
As catalytic oxidation district between aerator and three phase separator, it is filled with in catalytic oxidation district and fills out
Material, the region at membrane module place is film reaction district；
The outlet of sewage pump is by butterfly valve and effusion meter and regulating reservoir upper end water inlet phase
Connection, regulating reservoir lower end outlet passes through pipeline and the perforation water-locator phase in membrane bioreactor
Even；Aerator is connected with the outlet of Aeration fan by aerating gas effusion meter and keying butterfly valve
Logical；
Three phase separator top is provided with in order to catalytic oxidation district residue tolerance is imported upper membrane anti-
Answer the airway in district, catalytic oxidation district residue gas is used as the air purge source of membrane module；Ultrasound wave shakes
Box is arranged between the inwall of membrane bioreactor and membrane module, and ultrasonic vibration box passes through holding wire
It is connected with the supersonic generator signal outside membrane bioreactor；Membrane module uses GHK rotation
The vertical installation of transferring film filter assemblies, GHK rotates membrane filtration module by electric rotating machine and cycloidal pin
Wheel reductor rotates clockwise under driving, GHK rotate membrane filtration module center total outlet pipe with
Rotary shaft connects, and center total outlet pipe perforate is connected with swivel, swivel and outlet pipe
Connecting, outlet pipe is connected with suction pump intake by Pressure gauge, aspirates pump outlet
Connected with producing water tank water inlet by miscarriage water ga(u)ge；Chemical storage tank tank body passes through
Diaphragm metering pump is connected with backwash water pipeline one, and backwash water pipeline one outlet is arranged on membrane module
And in the middle part of the membrane bioreactor between airway, outlet is in membrane bioreactor；Backwash
Waterpipe one import is connected with backwash pump outlet, and backwash pump intake goes out with producing water tank
Mouth is connected, and the outlet of backwash water pump passes through backwash water pipeline two and connecing in membrane bioreactor
Tactile zoneofoxidation is connected；
Close gate valve one to be arranged between three phase separator and catalytic oxidation district, be used for separating three-phase
Separator and catalytic oxidation district；Close gate valve two be arranged on three phase separator and film reaction district it
Between, it is used for separating three phase separator and film reaction district, it is simple to membrane bioreactor top and the bottom are respectively
Clean；The material outlet of band emptying/mud valve it is provided with bottom membrane bioreactor.
Described perforation water-locator uses a pipe porous water distribution manner, arranges along reactor bottom
Total water distributor, interval arranges water distribution transverse tube, manages first-class spacing perforate, sparge pipe diameter
50～100cm, bottom sparge pipe centre-to-centre spacing 20～25cm, aperture 15～25mm.
Described aerator uses fixed flat planar micro-hole aerator, diameter 200mm, average hole
Footpath 100～200 μm, porosity 40～50%, coefficient of oxygen utilization 20～25%, service area
0.3～0.75m2/.
It is inverted cone bench-type structure bottom described membrane bioreactor, by emptying/spoil disposal
Valve controls sludge retention time 5～30d.
Described filler employing nylon soft cellulose filler, fiber length 120～160mm,
Element spacing 60～80mm, porosity is more than 70%, theoretical specific surface area
1400～2400m2/m3。
Described ultrasonic vibration box is in the top of three phase separator, uses and puts into vibration plate type, with
Frequently to the cleaning way that shakes, power density 31W/L, cleaning frequency 40KHz, scavenging period 5min,
Scavenging period interval 24h.
It is provided with valve in backwash water pipeline one and backwash water pipeline two.
Described membrane module uses aperture 0.1 μm polyvinylidene fluoride film (PVDF), sheet frame
Formula membrane flux 10～40L/m2H, each component filters area 2287m2。
Described chemical storage tank is by acid tank (HCl), alkali tank (NaOH), secondary chlorine
Acid sodium tank (NaClO), citric acid tank composition, each tank volume 1m3。
The film bioreactor device of a kind of decelerating membrane pollution of the present invention processes the side of sewage
Method, follows the steps below:
One/by pending sewage through pretreatment, sewage pump pump into regulating reservoir,
Regulating reservoir arranges agitator and sludge pump, pending sewage is carried out homogenizing and all measures, regulating reservoir
Treatment sewage after homogenizing enters membrane bioreactor bottom by flow by gravity, by perforation
Pipe water-locator water distribution uniformity, bio-contact oxidation district MLSS 6000～10000mg/L；
Two/sewage is under the effect of catalytic oxidation district aerator aeration, through catalytic oxidation district
Packing layer, the Organic substance of water quality effectively removed, organic loading 1.0～2.0kg BOD/m3D,
Hydraulic detention time 4～6h, air demand 1:5～20；
Mud/the water/gas in bio-contact oxidation district is separated by three/three phase separator, and activity is dirty
Mud is trapped within catalytic oxidation district, and the sewage after purification is through the slit of sealing gland Yu three phase separator
Entering upper layer film reaction zone, the airway that three phase separator upper end connects is by bottom biological contact oxidation
Change district's residue tolerance and import upper membrane reaction zone；
Four/sewage enters membrane bioreactor upper membrane reaction zone, through diaphragm, via taking out
The effect of pulsating pump, enters into product water tank, and unnecessary water passes through membrane bioreactor overflow pipe
Import regulating reservoir and further function as the effect resisting impact load；Simultaneously bubble effect of increasing,
The effect of membrane module rotational shear, and under the effect of current scour, it is achieved to membrane module
Preliminary cleaning.
Five/Ultrasonic Film cleans: membrane module interval 24h is by ultrasonic vibration box and ultrasound wave
The ultrasonication of generator, carries out ultrasonic cleaning；
Six/catalytic oxidation district is cleaned: closes and closes gate valve one, and catalytic oxidation district filler is spaced
2～3d, carry out a gas water backwash by backwash water pump, Aeration fan, wash intensity
4～7L/m2S, air purge intensity 15～20L/m2·s；Open emptying/mud valve after cleaning to get rid of
Sewage.
Seven/chemical method Membrane cleaning: close and close gate valve two, interval 2～3 months, by changing
Learn abluent storage tank, backwash water pump carries out Chemical cleaning to membrane module.
The swabbing pressure 10～60kpa of water pump is aspirated described in step 4.
Gas water backwash described in step 6 is air purge 10min, air water associating backwash 10min,
Washing 10min.
The respective running way of airwater mist cooling that apparatus of the present invention are formed: (1) sewage:
Pending sewage enters the lower contacts zoneofoxidation of membrane bioreactor, then passes through three-phase separate
From the slit flow of device to film reaction district, top, made by the filtration of pump up water pumping and membrane module
With realizing qualified discharge；(2) gas: in apparatus of the present invention, it is film that bottom is provided with aerator
Bioreactor catalytic oxidation district provides dissolved oxygen, the inducing QI that bubble connects through three phase separator
Pipe imports upper membrane reaction zone, as the source of the gas of diaphragm air scour；(3) mud: concentrate on
Catalytic oxidation district, is that biofilm detachment is formed, and sludge concentration MLSS controls
6000～10000mg/L, when concentration exceedes restriction, got rid of by bottom mud valve.
The invention have the benefit that three phase separator is arranged on membrane biological reaction by the present invention
In device, define the sewage-treatment plant of upper membrane reaction zone lower contacts zoneofoxidation.Contact oxygen
Change district's filling nylon soft cellulose filler, have activated sludge process and biomembrance process feature concurrently, biological
Abundant species Biomass is big, enhances Biochemical Treatment, synchronizes to realize denitrogenation dephosphorizing；Three-phase
Separator achieves the separation of air-water-mud, and mud is trapped within catalytic oxidation district, it is ensured that connect
Touch the Biochemical Treatment of zoneofoxidation, slow down the pollution speed of film reaction district diaphragm simultaneously.Empty
Gas from bottom to top, is stopped by three phase separator through catalytic oxidation district, by leading that top connects
Trachea is in order to import upper membrane reaction zone by catalytic oxidation district residue tolerance, and gas is used as membrane module
Air purge source, energy efficient；Membrane module uses GHK to rotate membrane filtration module, increases and rotates
Shear action is conducive to slowing down diaphragm and pollutes, and also can ensure that each diaphragm cleaning strength is equal simultaneously
Even, reduce and clean dead angle；Online ultrasonic waves for cleaning, Chemical cleaning equipment are set, reduce diaphragm
Dismounting operation in cleaning process, while recovering membrane flux as early as possible, save the operating time and
Manpower and materials expenditure cost.
The present invention retain former membrane bioreactor advantage while, by by membrane module with
Separately, GHK rotates membrane filtration module to biochemical treatment system, can effective decelerating membrane pollution, drop
Low the decline of membrane flux speed, prolonging service lifetime of film.Catalytic oxidation district increases biologic packing material, by force
Changing treatment effect, quality of sewage disposal is stable." cavitation " of ultrasound wave can make up routine
The deficiency cleaned.Online air water associating backwash, the ultrasonic Chemical cleaning equipment that involves reduce manpower thing
Power consumes, cost-effective, it is simple to operational management.Therefore, the present invention have treatment effeciency high,
Fouling membrane is little, stable effluent quality, floor space are few, energy consumption cost is low, convenient operation and management
Etc. advantage.
Accompanying drawing illustrates:
Fig. 1 is the structure chart of the film bioreactor device of the decelerating membrane pollution of the present invention, its
In: (1) sewage pump, (2) regulating reservoir, (3) membrane bioreactor, (4) perforation cloth
Hydrophone, (5) aerator, (6) aerating gas effusion meter, (7) Aeration fan, (8) emptying
/ mud valve, (9) filler, (10) closing gate valve one, (11) three phase separator, (12) are led
Trachea, (13) closing gate valve two, (14) ultrasonic vibration box, (15) membrane module, (16) surpass
Sonic generator, (17) electric rotating machine, (18) Pressure gauge, (19) suction water pump, (20)
Water tank, (22) chemical storage tank, (23) backwash are produced in miscarriage water ga(u)ge, (21)
Water pump, (24) backwash water pipeline one, (25) backwash water pipeline two.
Detailed description of the invention:
Following example are used for explaining the present invention, but the invention is not restricted to embodiment, also include
Combination in any between each detailed description of the invention.
Detailed description of the invention one: the membrane bioreactor dress of the decelerating membrane pollution of present embodiment
Putting, it includes: sewage pump 1, regulating reservoir 2, membrane bioreactor 3, perforation
Water-locator 4, aerator 5, aerating gas effusion meter 6, Aeration fan 7, emptying/mud valve 8,
Filler 9, close gate valve 1, three phase separator 11, airway 12, close gate valve 2 13,
Ultrasonic vibration box 14, membrane module 15, supersonic generator 16, electric rotating machine 17, Pressure gauge
18, suction water pump 19, miscarriage water ga(u)ge 20, product water tank 21, chemical storage tank
22, backwash water pump 23, backwash water pipeline 1, backwash water pipeline 2 25 and multiple connection
Pipeline and valve；Membrane bioreactor 3 is hollow container, in membrane bioreactor 3, under
Portion is provided with perforation water-locator 4, and middle part is provided with three phase separator 11, and top is provided with membrane module 15；
Perforation water-locator 4 be arranged over aerator 5, between aerator 5 and three phase separator 11
As catalytic oxidation district, in catalytic oxidation district, it is filled with filler 9, the district at membrane module 15 place
Territory is film reaction district；
The outlet of sewage pump 1 is by butterfly valve and effusion meter and regulating reservoir 2 upper end water inlet
Being connected, regulating reservoir 2 lower end outlet is by pipeline and the perforation cloth in membrane bioreactor 3
Hydrophone 4 is connected；Aerator 5 is by aerating gas effusion meter 6 and opens and closes butterfly valve and Aeration fan
The outlet of 7 is connected；
Three phase separator 11 top is provided with in order to catalytic oxidation district residue tolerance is imported upper membrane
The airway 12 of reaction zone, is used as the air purge source of membrane module 15 by catalytic oxidation district residue gas；
Ultrasonic vibration box 14 is arranged between the inwall of membrane bioreactor 3 and membrane module 15, ultrasonic
Ripple Vibration Box 14 is by holding wire and supersonic generator 16 signal outside membrane bioreactor 3
Connect；Membrane module 15 uses GHK to rotate the vertical installation of membrane filtration module, and GHK rotates film
Filter assemblies rotates clockwise under being driven by electric rotating machine 17 and cycloidal planetary gear speed reducer, GHK
Rotate membrane filtration module center total outlet pipe to be connected with rotary shaft, center total outlet pipe perforate and turn
Dynamic joint connects, and swivel is connected with outlet pipe, and outlet pipe is by Pressure gauge 18 and suction
Water pump 19 water inlet is connected, suction water pump 19 outlet by miscarriage water ga(u)ge 20 with
Produce the connection of water tank 21 water inlet；Chemical storage tank 22 tank body by diaphragm metering pump with
Backwash water pipeline 1 is connected, backwash water pipeline 1 outlet be arranged on membrane module 15 with
In the middle part of membrane bioreactor 3 between airway 12, outlet is in membrane bioreactor 3；
Backwash water pipeline 1 import is connected with backwash water pump 23 outlet, and backwash water pump 23 is intake
Mouth is connected with producing water tank 21 outlet, and the outlet of backwash water pump 23 passes through backwash water pipeline two
25 are connected with the catalytic oxidation district in membrane bioreactor 3；
Close gate valve 1 to be arranged between three phase separator 11 and catalytic oxidation district, for dividing
Every three phase separator 11 and catalytic oxidation district；Close gate valve 2 13 and be arranged on three phase separator 11
And between film reaction district, it is used for separating three phase separator 11 and film reaction district, it is simple to film is biological
Reactor 3 top and the bottom are respectively washed；Band emptying/mud valve 8 it is provided with bottom membrane bioreactor 3
Material outlet.
Detailed description of the invention two: present embodiment is unlike detailed description of the invention one: institute
The perforation water-locator 4 stated uses a pipe porous water distribution manner, arranges bottom membrane bioreactor
Total water distributor, interval arranges water distribution transverse tube, manages first-class spacing perforate, sparge pipe diameter
50～100cm, bottom sparge pipe centre-to-centre spacing 20～25cm, aperture 15～25mm.
Described aerator 5 uses fixed flat planar micro-hole aerator, diameter 200mm, averagely
Aperture 100～200 μm, porosity 40～50%, coefficient of oxygen utilization 20～25%, service area
0.3～0.75m2/.Other are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is different from detailed description of the invention one to two
It is: for inverted cone bench-type structure bottom membrane bioreactor 3, controlled by emptying/mud valve 8
Sludge retention time 5～30d processed.Other are identical with detailed description of the invention one to two.
Detailed description of the invention four: present embodiment is different from one of detailed description of the invention one to three
: described filler 9 uses nylon soft cellulose filler, fiber length 120～160mm,
Element spacing 60～80mm, porosity 70～95%, theoretical specific surface area 1400～2400m2/m3。
Described ultrasonic vibration box 14 is in the top of three phase separator 11, uses and puts into vibration plate
Type, with frequency to the cleaning way that shakes, power density 31W/L, cleaning frequency 40KHz, cleans
Time 5min, scavenging period interval 24h.Other are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: present embodiment is different from one of detailed description of the invention one to four
: it is provided with valve in backwash water pipeline 1 and backwash water pipeline 2 25.Other with tool
One of body embodiment one to four is identical.
Detailed description of the invention six: present embodiment is different from one of detailed description of the invention one to five
: described membrane module 15 uses aperture 0.1 μm polyvinylidene fluoride film (PVDF), plate
Frame membrane flux 10～40L/m2.h, each component filters area 2287m2.Other are real with concrete
Execute one of mode one to five identical.
Detailed description of the invention seven: present embodiment is different from one of embodiment one to six
It is: described chemical storage tank 22 is by acid tank (HCl), alkali tank (NaOH), secondary chlorine
Acid sodium tank (NaClO), citric acid tank composition, each tank volume 1m3.Other be embodied as
One of mode one to six is identical.
It is gas-liquid-solid that the device having the beneficial effect that present embodiment of present embodiment is formed
The respective running way of three-phase: (1) sewage: pending sewage enters membrane bioreactor
Lower contacts zoneofoxidation, then by the slit flow of three phase separator to film reaction district, top, logical
The filtration crossing pump up water pumping and membrane module realizes qualified discharge；(2) gas: this
Bright device bottom is provided with aerator and provides dissolved oxygen, gas for membrane bioreactor catalytic oxidation district
Steep the airway through three phase separator and import upper membrane reaction zone, as diaphragm air scour
Source of the gas；(3) mud: concentrate on catalytic oxidation district, is that biofilm detachment is formed, and mud is dense
Degree MLSS controls, 6000～10000mg/L, when concentration exceedes restriction, to be arranged by bottom
Slurry valve is got rid of.
Detailed description of the invention eight: the membrane bioreactor of a kind of decelerating membrane pollution of the present embodiment
It is to follow the steps below that device processes the method for sewage:
One/by pending sewage through pretreatment, sewage pump 1 pump into regulating reservoir
2, regulating reservoir 2 arranges agitator and sludge pump, pending sewage is carried out homogenizing and all measures,
Treatment sewage after regulating reservoir 2 homogenizing enters membrane bioreactor 3 times by flow by gravity
Portion, by perforated pipe water-locator 4 water distribution uniformity, bio-contact oxidation district MLSS
6000～10000mg/L；
Two/sewage is under the effect of catalytic oxidation district aerator 5 aeration, through catalytic oxidation
District's filler 9 floor, the Organic substance of water quality effectively removed, organic loading
1.0～2.0kgBOD/m3D, hydraulic detention time 4～6h, air demand 1:5～20；
Mud/the water/gas in bio-contact oxidation district is separated by three/three phase separator 11, lives
Property mud is trapped within catalytic oxidation district, and the sewage after purification is through sealing gland and three phase separator
The slit of 11 enters upper layer film reaction zone, under the airway that three phase separator 11 top connects is incited somebody to action
Bio-contact oxidation district of portion residue tolerance imports upper membrane reaction zone；
Four/sewage enters membrane bioreactor 3 upper membrane reaction zone, through diaphragm, via
The effect of suction water pump 19, enters into product water tank 21, and unnecessary water passes through membrane biological reaction
The overflow pipe of device 3 imports regulating reservoir 2 and further functions as the effect resisting impact load；Exist simultaneously
Bubble effect of increasing, the effect of membrane module 15 rotational shear, and the effect of current scour
Under, it is achieved the preliminary cleaning to membrane module 15；
Five/Ultrasonic Film cleans: membrane module 15 is spaced 24h and passes through ultrasonic Vibration Box 14, surpasses
Sonic generator 16 carries out ultrasonic cleaning；
Six/catalytic oxidation district is cleaned: closes and closes gate valve 1, catalytic oxidation district filler 9
Interval 2～3d, carries out a gas water backwash (air purge by backwash water pump 23, Aeration fan 7
10min, air water associating backwash 10min, wash 10min), wash intensity 6L/m2S, gas
Wash intensity 20L/m2·s.Emptying/mud valve 8 draining-off sewage is opened after cleaning；
Seven/chemical method Membrane cleaning: close and close gate valve 2 13, interval 2～3 months, pass through
Chemical storage tank 22, backwash water pump 23 carry out Chemical cleaning to membrane module 15.
Detailed description of the invention nine: present embodiment is unlike detailed description of the invention eight: institute
Regulating reservoir 2 outlet in the step one stated is arranged on below water surface 0.5m, is more than away from the bottom of pond
The place of 2m.Pretreatment need to be filtered through fine cleaner, aperture 0.5mm.Other are real with concrete
Execute enforcement eight identical.
Detailed description of the invention ten: present embodiment is unlike detailed description of the invention eight to nine:
The swabbing pressure 10～60kpa of water pump 19 is aspirated described in described step 4.Other have with step
Body embodiment eight to nine is identical.
By tests below checking effect of the present invention:
The film bioreactor device of a kind of decelerating membrane pollution of this test processes the side of sewage
Method, is to follow the steps below:
One/according to shown in Fig. 1, film bioreactor device of the present invention is installed.Connect
Planting mud is 6000mg/L.
Two/pending sewage is removed the above impurity particle of particle diameter 5mm through pretreatment,
Being pumped into regulating reservoir 2 by sewage pump 1, carry out after homogenizing all measures, treatment sewage is by weight
Power gravity flow enters membrane bioreactor 3 bottom, by perforated pipe water-locator 4 water distribution uniformity.Open
Open and close butterfly valve and Aeration fan 7, by Pressure gauge, catalytic oxidation district aerating gas effusion meter
6, control tolerance, gas-water ratio controls at 1:10.
Three/pending sewage is under the effect of aeration, through catalytic oxidation district filler 9 floor,
Water quality is purified.Organic loading controls as 1.0kgBOD/m3D, hydraulic detention time 6h；
Air demand 1:10；
Film bioreactor device is divided into upper and lower two parts by four/three phase separator 11.Step
Sewage in rapid two from bottom to top, passes through three-phase separate after catalytic oxidation district filler 9 floor purifies
Upper membrane reaction zone is entered from the gap of device 11.Many Residual volumes that Aeration fan 7 provides pass through
The airway 12 of three phase separator 11 enters upper membrane reaction zone.Activated sludge is along three phase separation
The automatic landing of device 11 swash plate, terminates in catalytic oxidation district.
Five/through catalytic oxidation district purify after sewage enter upper membrane reaction zone, membrane module 15
Rotating speed 17r/min.Aspirating via suction water pump 19, sewage passes through diaphragm, and remittance center always goes out
Water pipe, membrane flux 35L/m2H, enters into product water tank 21 by swivel, unnecessary
Water enters regulating reservoir 2 by integrated film bioreactor overflow pipe and further functions as resistance punching
Hit the effect of load.The operation of membrane module is controlled by Pressure gauge 18, miscarriage water ga(u)ge 20
Switch with backwash.Swabbing pressure control limit is 60kpa.
Six/membrane module 15 interval 24h passes through ultrasonic Vibration Box 14, supersonic generator
16 carry out ultrasonic cleaning；Cleaning frequency 40KHz, scavenging period 5min.
Seven/membrane bioreactor interval 3d, is carried out by backwash water pump 23, Aeration fan 7
Backwash.Close catalytic oxidation district and close gate valve 1, air purge 10min, air water associating backwash
10min, washes 10min, washes intensity 6L/m2S, air purge intensity 20L/m2·s.Clean
After open emptying/mud valve 8 draining-off sewage.
Eight/membrane module 15 interval 3 months, by chemical storage tank 22, instead
Wash water pump 23 carries out Chemical cleaning to membrane module 15.A backwash used time 42min (alkali cleaning
2min, a pickling 10min, secondary alkali cleaning 10min, sodium hypochlorite sterilization 10min, two
Secondary Fructus Citri Limoniae pickling 10min) complete the dirt of a membrane bioreactor integrated sewage treating apparatus
Water processes cycle of operation.
The membrane module 15 that this test uses, aperture 0.1 μm, polyvinylidene fluoride film (PVDF)
Material；The perforation water-locator 4 of this test, sparge pipe diameter 50cm, sparge pipe centre-to-centre spacing
Bottom 20cm, aperture 2cm；Aerator 5 uses fixed flat planar micro-hole aerator, diameter
200mm, average pore size 150 μm, porosity 40%, coefficient of oxygen utilization 20%, service area
0.5m2/；Filler 9 is nylon soft cellulose filler, length 150mm, element spacing 70mm,
Porosity 80%, theoretical specific surface area 2000m2/m3。
This experiment Inlet and outlet water water quality result is as shown in table 1.
Table 1
As shown in Table 1, the film bioreactor device scavenging effect of this test is good.Protecting
While staying the advantage of former membrane bioreactor, can effectively slow down pollution speed and the decline of membrane flux
Speed, improves membrane module and runs duration, reduce backwash frequency, effectively reduce energy consumption, save fortune
Row cost.
Claims (10)
1. a film bioreactor device for decelerating membrane pollution, including: sewage pump (1),
Regulating reservoir (2), membrane bioreactor (3), perforation water-locator (4), aerator (5), exposure
Gas gas flowmeter (6), Aeration fan (7), emptying/mud valve (8), filler (9),
Close gate valve one (10), three phase separator (11), airway (12), close gate valve two (13),
Ultrasonic vibration box (14), membrane module (15), supersonic generator (16), electric rotating machine (17),
Pressure gauge (18), suction water pump (19), miscarriage water ga(u)ge (20), produce water tank (21),
Chemical storage tank (22), backwash water pump (23), backwash water pipeline one (24), backwash
Waterpipe two (25) and multiple connecting line and valve；It is characterized in that: membrane biological reaction
Device (3) is hollow container, and in membrane bioreactor (3), bottom is provided with perforation water-locator
(4), middle part is provided with three phase separator (11), and top is provided with membrane module (15)；Perforation water distribution
Device (4) be arranged over aerator (5), aerator (5) and three phase separator (11) it
Between as catalytic oxidation district, be filled with filler (9), membrane module (15) institute in catalytic oxidation district
Region be film reaction district；
The outlet of sewage pump (1) is by butterfly valve and effusion meter and regulating reservoir (2) upper end
Water inlet is connected, and regulating reservoir (2) lower end outlet is by pipeline and membrane bioreactor (3)
Interior perforation water-locator (4) is connected；Aerator (5) passes through aerating gas effusion meter (6)
And keying butterfly valve is connected with the outlet of Aeration fan (7)；
Three phase separator (11) top is provided with in order to catalytic oxidation district residue tolerance is imported top
The airway (12) in film reaction district, is used as membrane module (15) by catalytic oxidation district residue gas
Air purge source；Ultrasonic vibration box (14) is arranged on inwall and the film group of membrane bioreactor (3)
Between part (15), ultrasonic vibration box (14) is by holding wire and membrane bioreactor (3)
Outside supersonic generator (16) signal connects；Membrane module (15) uses GHK to rotate
The vertical installation of membrane filtration module, GHK rotates membrane filtration module by electric rotating machine (17) and pendulum
Line pin gear speed reducer rotates clockwise under driving, and GHK rotates the total water outlet in membrane filtration module center
Pipe be connected with rotary shaft, center total outlet pipe perforate is connected with swivel, swivel with go out
Water pipe connects, and outlet pipe is connected with suction water pump (19) water inlet by Pressure gauge (18),
Suction water pump (19) outlet is entered with producing water tank (21) by miscarriage water ga(u)ge (20)
The mouth of a river connects；Chemical storage tank (22) tank body is by diaphragm metering pump and backwash water pipeline
One (24) is connected, and backwash water pipeline one (24) outlet is arranged on membrane module (15) and leads
Membrane bioreactor (3) middle part between trachea (12), outlet is in membrane bioreactor
(3) in；Backwash water pipeline one (24) import is connected with backwash water pump (23) outlet,
Backwash water pump (23) water inlet is connected with producing water tank (21) outlet, backwash water pump (23)
Outlet by backwash water pipeline two (25) with contact oxygen in membrane bioreactor (3)
Change district to be connected；
Close gate valve one (10) to be arranged between three phase separator (11) and catalytic oxidation district,
For separating three phase separator (11) and catalytic oxidation district；Close gate valve two (13) to be arranged on
Between three phase separator (11) and film reaction district, it is used for separating three phase separator (11) and film
Reaction zone, it is simple to membrane bioreactor (3) top and the bottom are respectively washed；Membrane bioreactor (3)
Bottom is provided with the material outlet of band emptying/mud valve (8).
The film bioreactor device of decelerating membrane pollution the most according to claim 1, it is special
Levy and be: described perforation water-locator (4) uses a pipe porous water distribution manner, along reactor
Bottom arranges total water distributor, and interval arranges water distribution transverse tube, manages first-class spacing perforate, and sparge pipe is straight
Footpath 50～100cm, bottom sparge pipe centre-to-centre spacing 20～25cm, aperture 15～25mm；
Described aerator (5) uses fixed flat planar micro-hole aerator, diameter 200mm, puts down
All aperture 100～200 μm, porosity 40～50%, coefficient of oxygen utilization 20～25%, service areas
0.3～0.75m2/.
The film bioreactor device of decelerating membrane pollution the most according to claim 1, its
It is characterised by: described membrane bioreactor (3) bottom is inverted cone bench-type structure, passes through
Emptying/mud valve (8) controls sludge retention time 5～30d.
The film bioreactor device of decelerating membrane pollution the most according to claim 1, its
It is characterised by: described filler (9) uses nylon soft cellulose filler, fiber length
120～160mm, element spacing 60～80mm, porosity is more than 70%, theoretical specific surface area
1400～2400m2/m3；
Described ultrasonic vibration box (14) is in the top of three phase separator (11), uses and throws
Enter vibration plate type, the most frequently to the cleaning way that shakes, power density 31W/L, cleaning frequency 40KHz,
Scavenging period 5min, scavenging period interval 24h.
The film bioreactor device of decelerating membrane pollution the most according to claim 1, its
It is characterised by: be provided with valve in backwash water pipeline one (24) and backwash water pipeline two (25).
The film bioreactor device of decelerating membrane pollution the most according to claim 1, its
It is characterised by: described membrane module (15) uses aperture 0.1 μm polyvinylidene fluoride film, sheet frame
Formula membrane flux 10～40L/m2H, each component filters area 2287m2。
The film bioreactor device of decelerating membrane pollution the most according to claim 1, its
Be characterised by: described chemical storage tank (22) by acid tank, alkali tank, sodium hypochlorite tank,
Citric acid tank forms, each tank volume 1m3。
8. the film bioreactor device of the decelerating membrane pollution described in a claim 1 processes
The method of sewage, it is characterised in that: described method follows the steps below:
One/by pending sewage through pretreatment, sewage pump (1) pump into regulating reservoir
(2), regulating reservoir (2) arranges agitator and sludge pump, and pending sewage is carried out homogenizing
All measuring, the treatment sewage after regulating reservoir (2) homogenizing enters membrane bioreaction by flow by gravity
Answer device (3) bottom, by perforated pipe water-locator (4) water distribution uniformity, bio-contact oxidation district
MLSS 6000～10000mg/L；
Two/sewage is under the effect of catalytic oxidation district aerator (5) aeration, through catalytic oxidation
District's filler (9) floor, the Organic substance of water quality effectively removed, organic loading 1.0～2.0kg
BOD/m3D, hydraulic detention time 4～6h, air demand 1:5～20；
Mud/the water/gas in bio-contact oxidation district is separated by three/three phase separator (11), lives
Property mud is trapped within catalytic oxidation district, and the sewage after purification is through sealing gland and three phase separator
(11) slit enters upper membrane reaction zone, the inducing QI that three phase separator (11) top connects
Bio-contact oxidation district, bottom residue tolerance is imported upper membrane reaction zone by pipe (12)；
Four/sewage enters membrane bioreactor (3) upper membrane reaction zone, through diaphragm, via
The effect of suction water pump (19), enters into product water tank (21), and unnecessary water is raw by film
The overflow pipe of thing reactor (3) imports regulating reservoir (2) and further functions as resistance impact load
Effect；Simultaneously in bubble effect of increasing, the effect of membrane module (15) rotational shear, and
Under the effect of current scour, it is achieved the preliminary cleaning to membrane module (15)；
Five/Ultrasonic Film cleans: membrane module (15) interval 24h is by ultrasonic vibration box (14)
With the ultrasonication of supersonic generator (16), carry out ultrasonic cleaning；
Six/catalytic oxidation district is cleaned: closes and closes gate valve one (10), catalytic oxidation district filler (9)
Interval 2～3d, carries out a gas water backwash by backwash water pump (23), Aeration fan (7),
Washing intensity 4～7L/m2S, air purge intensity 15～20L/m2·s；Emptying/row is opened after cleaning
Slurry valve (8) draining-off sewage；
Seven/chemical method Membrane cleaning: close and close gate valve two (13), interval 2～3 months, pass through
It is clear that chemical storage tank (22), backwash water pump (23) carry out chemistry to membrane module (15)
Wash.
The film bioreactor device of decelerating membrane pollution the most according to claim 8 processes
The method of sewage, it is characterised in that: aspirate the swabbing pressure of water pump (19) described in step 4
10～60kpa.
The film bioreactor device of decelerating membrane pollution the most according to claim 8 processes
The method of sewage, it is characterised in that: the gas water backwash described in step 6 is air purge 10min, gas
Water associating backwash 10min, washes 10min.
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| CN105084539B (en) * | 2015-07-03 | 2017-09-05 | 中国电建集团贵阳勘测设计研究院有限公司 | The method and its device of Ultrasonic Film component processing low temp area sewage |
| CN106186545B (en) * | 2016-08-19 | 2019-02-12 | 董金萍 | A kind of new membrane bioreactor sewage water processing unit |
| CN106277327B (en) * | 2016-09-26 | 2019-10-18 | 中国环境科学研究院 | A kind of whole process autotrophic denitrification reactor and denitrification process |
| CN106745704A (en) * | 2016-12-04 | 2017-05-31 | 江苏沛尔膜业股份有限公司 | A kind of plate film assembly Flat Membrane self-cleaning component |
| CN107986435A (en) * | 2017-12-26 | 2018-05-04 | 广州市环境保护工程设计院有限公司 | A kind of efficient up-flow biological reaction apparatus and its operation method and application |
| CN108483635B (en) * | 2018-06-06 | 2020-10-30 | 江苏联合创业环保有限公司 | Membrane bioreaction auxiliary device of aerobic circulating fluidized bed |
| CN110871033A (en) * | 2019-12-06 | 2020-03-10 | 自然资源部天津海水淡化与综合利用研究所 | Energy-saving type rotary membrane filtering system and method |
| CN111533257B (en) * | 2020-04-14 | 2021-10-26 | 浙江海洋大学 | High ammonia nitrogen autotrophic nitrogen removal device |
| CN111704317B (en) * | 2020-06-28 | 2022-07-08 | 重庆工商大学 | Method for slowing down membrane pollution of aerobic granular sludge membrane bioreactor |
| CN114853157B (en) * | 2022-04-21 | 2023-05-05 | 西安理工大学 | Sewage treatment system for efficient biological film reaction and application method thereof |
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| CN102491521B (en) * | 2011-12-30 | 2013-03-13 | 哈尔滨工业大学 | Integrated sewage treatment device of membrane bioreactor and sewage treatment method |
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