CN107285459A - A kind of membrane bioreactor - Google Patents
A kind of membrane bioreactor Download PDFInfo
- Publication number
- CN107285459A CN107285459A CN201710701187.1A CN201710701187A CN107285459A CN 107285459 A CN107285459 A CN 107285459A CN 201710701187 A CN201710701187 A CN 201710701187A CN 107285459 A CN107285459 A CN 107285459A
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- China
- Prior art keywords
- sieve plate
- housing
- sieve
- cavity
- pipe portion
- Prior art date
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- 239000012528 membrane Substances 0.000 title claims abstract description 52
- 238000005273 aeration Methods 0.000 claims abstract description 52
- 239000003292 glue Substances 0.000 claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000004744 fabric Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005276 aerator Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000004907 flux Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009285 membrane fouling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 17
- 238000011010 flushing procedure Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011045 prefiltration Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F3/20—Activated sludge processes using diffusers
- C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a kind of membrane bioreactor, including film silk, the housing of upper end open, the first sieve plate, the second sieve plate and aeration component；Housing hollow is separated into upper strata cavity and lower floor's cavity by the dividing plate in housing, first sieve plate and the second sieve plate are spaced apart and arranged in the cavity of upper strata, using the cavity between the first sieve plate and the second sieve plate as injecting glue layer, using the cavity between the second sieve plate and dividing plate as water-yielding stratum, using lower floor's cavity to enter gas-bearing formation；First sieve plate and the second sieve plate are provided with multiple sieve apertures that film silk is connect for wearing arranged in uniform intervals；The inside center of housing is evenly spaced apart to be provided with multiple aeration components；Aeration component is sequentially passed through into gas-bearing formation, water-yielding stratum and injecting glue layer from bottom to top；Aeration component, which is located at into the position in gas-bearing formation, is provided with air admission hole；The openend of film silk sequentially passes through sieve aperture and extended in water-yielding stratum.The present invention has simple in construction, and cost and operating cost are low, and membrane flux is high, the good advantage of membrane fouling control effect.
Description
Technical field
The present invention relates to sewage disposal device, more specifically to a kind of membrane bioreactor.
Background technology
In recent years, application of the membrane technology in sewage treatment area is particularly the membrane bioreaction combined with bioreactor
Device (Membrane Bioreactor, abbreviation MBR) technique is answered to be received increasingly as a kind of new and effective sewage treatment process
Extensive concern.MBR is a kind of new water technology for mutually tying platform with biological processing unit by film separation unit, with membrane module
Substitution second pond keeps high activity sludge concentration to reduce sewage treatment facility occupation of land in bioreactor, and by keeping low dirt
Mud load reduces sludge quantity.There is MBR techniques simple to operate, hydraulic detention time (HRT) to be separated with sludge age (SRT), sludge
The advantages of concentration is high, capacity of resisting impact load is strong, effluent quality is good.In membrane bioreactor, bioreactor is mainly completed
The degraded of dirty water pollutant；Film separation unit mainly completes separation of solid and liquid and some macromolecular compounds is played with retention work
With used film is generally ultrafiltration or microfiltration membranes.
In actual applications, because the membrane module of MBR in the process of running is vulnerable to pollution, flux depression, shadow are caused
The stable operation of membrane module is rung, fouling membrane is turned into the key issue of limitation MBR applications.Fouling membrane refers to suspended particulate, colloid
Particle or dissolubility larger molecular organicses adsorb deposition in film surface and fenestra, cause membrane aperture to reduce or block, lead to film
Measure the phenomenon declined.
In the prior art, for the treatment effect prevented and treated fouling membrane, improve MBR, typically using following methods：
1st, bio-aeration and air water cleaning are combined.
" external hollow-fiber membrane bioreactor " (CN2755081Y), including hollow fiber bundle, band center connector
Gas-liquid distributor, shell, achievable feed liquid is uniformly distributed, the cleaning on the spot of membrane module, and unit is easily managed and repaired, filtering
Performance is stable.
It is this to cleaning method is carried out to film surface using air water upper up-flow while unit oxygen supply, it is biological due to meeting
The aeration quantity of reaction can not possibly be very big, and the simple effect for relying on air-flow rising to wash film by rubbing with the hands is limited.
2nd, compressed air is added in backwash water.
" air water reverse flushing device of membrane bioreactor film " (CN2530940Y), is related to a kind of air water back washing device, its
Feature is that film is backwashed using compressed air, improves backwash effect.
This method utilizes a small amount of backwashing water, slows down the blocking of film, extends the service life of film, to a certain extent
Backwash effect is improved, but this method is remained in the aspect of recoil, and the effect for preventing and treating the pollution of film is limited.
3rd, disturbance device is increased in the reactor.
" membrane bioreactor " (CNl727289A), including an at least pre-filter layer, at least one biological film unit, and at least
One disturbing flow device, the disturbing flow device is clipped in the middle of pre-filter layer and biological film unit, can be disturbed between pre-filter layer and biomembrane
Sewage in the middle of unit is low with membrane bioreactor circulation height, Membrane cleaning convenience, membrane operations cycle length, operating cost
Advantage.
This method strengthens film surface cleaning performance by carrying the turbulence intensity of high liquid flow, to slow down film surface pollution thing deposition,
Improve cleaning efficiency effectively, but because disturbance device is staticizer, film surface is cleaned by the kinetic energy of liquid stream, can not in reflux ratio
Can it is too big in the case of cleaning performance it is limited.
In addition, in existing MBR, typically also there is following defect：A. individually designed bottom aerating system is needed, equipment is multiple
Miscellaneous huge, cost is high；B. film silk uses a bundle structure, such dirt or suspension can not be rinsed between being clipped in film silk；C. film
Wire bundle is directly adopted and fastened with glue after pricking, and causes in running to cause film thread from film structure because long-time left-right and front-back is swung
In come off；D. fan energy consumption is high when aerating system is stirred using blower fan；E. maintenance process is complicated, and equipment and technical staff are required
It is high.
The content of the invention
The technical problems to be solved by the invention be there is provided one kind it is simple in construction, cost and operating cost are low, membrane flux
Height, the good membrane bioreactor of membrane fouling control effect.
In order to solve the above-mentioned technical problem, the invention provides a kind of membrane bioreactor, it includes film silk and aeration dress
Put；The film silk has hollow channel, and its one end closing, another end opening, the aerator is connected to opening for the film silk
Mouth end；The aerator includes housing, the first sieve plate, the second sieve plate and the aeration component of upper end open；The housing
Interior to be provided with dividing plate, the cavity of the housing is separated into upper strata cavity and lower floor's cavity by the dividing plate, first sieve plate and
Second sieve plate is spaced apart and arranged in the upper strata cavity and parallel to the dividing plate, sieved with first sieve plate and second
Cavity between web plate is injecting glue layer, using the cavity between second sieve plate and dividing plate as water-yielding stratum, empty with the lower floor
Chamber is into gas-bearing formation；First sieve plate and the second sieve plate are equipped with multiple sieve apertures that the film silk is connect for wearing, the sieve
Hole is arranged for uniform intervals；It is evenly spaced apart to be provided with multiple aeration structures along along the center line of the length direction of the housing
Part；The aeration component is fitting structure, and the aeration component is provided with upper port and lower port, and the aeration component is from bottom to top
Enter gas-bearing formation, water-yielding stratum and injecting glue layer described in sequentially passing through；The aeration component enters the position in gas-bearing formation provided with air inlet described in being located at
Hole；The sieve aperture that the openend of the film silk is sequentially passed through on first sieve plate and the second sieve plate extends the water-yielding stratum
It is interior；Film silk, aeration component, the first sieve plate and the second sieve plate and housing seal are consolidated by injecting glue in the injecting glue layer
It is scheduled on together.
As preferred embodiments of the present invention, first sieve plate and the second sieve plate are square by many block size identicals
Screen cloth Slab element spicing forming type successively, each screen cloth Slab element is used to wear the sieve apertures for connecing the film silk provided with multiple,
The sieve aperture is evenly arranged in array.
As preferred embodiments of the present invention, the bottom of the housing is provided with the water inlet being connected with the lower port,
The center of each screen cloth Slab element in first sieve plate is provided with the gas-liquid being connected with the upper port
The center of each screen cloth Slab element in mixed export, second sieve plate, which is provided with, is available for the upper port to pass through
The first connecting hole, the dividing plate is provided with being available for the second connecting hole that the lower port is passed through.
As preferred embodiments of the present invention, the aeration component is stepped fitting structure, and it is upper that it includes being sequentially connected
Pipe portion, middle pipe portion and down leg, the external diameter of the upper pipe portion are less than the external diameter of the middle pipe portion, and the external diameter of the middle pipe portion is less than
The external diameter of the down leg.
As preferred embodiments of the present invention, the upper pipe portion through first sieve plate and second sieve plate it
Between, the upper end of the upper pipe portion is exported with the gas-liquid mixed to be coordinated, and the lower end of the upper pipe portion is matched somebody with somebody with first connecting hole
Close；The middle pipe portion is through between second sieve plate and the dividing plate；The down leg is through the dividing plate and institute
Between the bottom for stating housing, the upper end of the down leg coordinates with second connecting hole and sealed, the lower end of the down leg
Coordinate with the water inlet and seal.
As preferred embodiments of the present invention, the junction of the middle pipe portion and down leg is provided with outside baffle plate, the baffle plate
Footpath is more than the internal diameter of second connecting hole.
As preferred embodiments of the present invention, be evenly arranged with the tube wall of the upper pipe portion it is multiple be available for glue inject it is recessed
Groove.
As preferred embodiments of the present invention, the outside of the air admission hole from the aeration component, which is internally tilted upward, to be set
Put.
As preferred embodiments of the present invention, the both ends open of the housing, wherein one end are provided with water outlet component, and the other end is set
There is air inlet component；The water outlet component includes being covered on first end casing of one end of the housing and is arranged at described first
Water outlet mouthpiece on end casing, the water outlet mouthpiece is connected with the water-yielding stratum；The air inlet component includes being covered on the shell
Second end casing of the other end of body and the intake interface being arranged on second end casing, the intake interface with it is described
Enter gas-bearing formation connection.
As preferred embodiments of the present invention, the inner edge of the upper end open of the housing is provided with to be engaged with first sieve plate
The first screens；The inwall of the housing is provided with the second screens engaged with second sieve plate.
Implement a kind of membrane bioreactor of the present invention, compared with prior art, have the advantages that：
(1) positioned at intervals is carried out to every film silk using sieve plate, and by the injecting glue in injecting glue layer, glue is flowed into film
In gap between silk and film silk, fully every film silk of cementation, efficiently solves the film tow of current bundle type structure in machine
Cause the phenomenon that film silk comes off because long-time left-right and front-back is swung in device running, while such design can make every film
Silk can be fully used, and membrane flux is high；
(2) aeration component is arranged on the central area of film tow, and the gas-liquid two-phase fluid that aeration component is discharged can
From inside film tow to navigating within outside film tow between film silk and film silk, realize and film silk air stirring rinsed and water is rinsed,
During be located at the film silk of film tow central area and also effectively rinsed, without the place that does not flush, flush efficiency is high, film
Prevention and cure of pollution effect is good, and strainability is stable；
(3) flushing will be stirred with blower fan merely originally and becomes air stirring flushing+water flushing, and greatly save blower fan energy
Consumption；
(4) by injecting glue layer, water-yielding stratum, enter gas-bearing formation and be aerated component design be attached to same component (i.e. housing), be not required to
Individually designed bottom aerating system is wanted, simple in construction, cost is low, and be easily managed and repair.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will simply be situated between to the accompanying drawing of embodiment below
Continue.
Fig. 1 is a kind of front view of the aerator for membrane bioreactor that the present invention is provided；
Fig. 2 is a kind of stereogram of the positive side line of vision of the aerator for membrane bioreactor that the present invention is provided；
Fig. 3 is a kind of stereogram of the dorsal part line of vision of the aerator for membrane bioreactor that the present invention is provided；
Fig. 4 is a kind of front view of the sieve plate for membrane bioreactor that the present invention is provided；
Fig. 5 is a kind of front view of the screen cloth Slab element for membrane bioreactor that the present invention is provided；
Fig. 6 is a kind of front view of the aeration component for membrane bioreactor that the present invention is provided；
Fig. 7 is a kind of front view of the water outlet component for membrane bioreactor that the present invention is provided；
Fig. 8 is a kind of front view of the air inlet component for membrane bioreactor that the present invention is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figures 1 to 8, the preferred embodiments of the present invention, a kind of membrane bioreactor, it includes film silk and aeration dress
Put, the film silk has hollow channel, its one end closing, another end opening, the aerator is connected to opening for the film silk
Mouth end.
The aerator includes housing 1, the first sieve plate 2, the second sieve plate 3 and the aeration component 4 of upper end open.Its
In, the housing 1 of the present embodiment is in long groove shape structure, certainly, can also other shapes structure, such as square channel-shaped in another embodiment
Structure.Dividing plate 5 is provided with the housing 1, the cavity of the housing 1 is separated into upper strata cavity and lower floor's cavity by the dividing plate 5,
The sieve plate 3 of first sieve plate 2 and second is spaced apart and arranged in the upper strata cavity and parallel to the dividing plate 5, with institute
The cavity stated between the first sieve plate 2 and the second sieve plate 3 is injecting glue layer 6, between second sieve plate 3 and dividing plate 5
Cavity is water-yielding stratum 7, using lower floor's cavity to enter gas-bearing formation 8.Wherein, injecting glue layer 6 is used to fill epoxy resin, by film silk with exposing
Device of air is connected and fixed；Water-yielding stratum 7 is used to export the clean drainage after film silk filtering；Entering gas-bearing formation 8 is used for aeration structure
Part 4 inputs gas.
The sieve plate 3 of first sieve plate 2 and second is equipped with multiple sieve apertures 9 that the film silk is connect for wearing, the sieve
Hole 9 is uniform intervals arrangement, is thus spaced apart every film silk, makes have be available for fluid to pass through to lead between film silk and film silk
Road.
It is evenly spaced apart to be provided with multiple aeration components 4 along along the center line of the length direction of the housing 1, it is described
Aeration component 4 is fitting structure, and the aeration component 4 is provided with upper port 44 and lower port 45, and the aeration component 4 is from bottom to top
Enter gas-bearing formation 8, water-yielding stratum 7 and injecting glue layer 6 described in sequentially passing through；The position that the aeration component 4 enters in gas-bearing formation 8 described in is provided with
Air admission hole 46.Wherein, upper port 44 is output end, and lower port 45 is water purification input, and air admission hole 46 is gas input, thus
The fluid that discharges of aeration component 4 can from-inner-to-outer navigate between film silk and film silk, realize and film silk air stirred
Mix flushing and water is rinsed.
The sieve aperture 9 that the openend of the film silk is sequentially passed through on the sieve plate 3 of the first sieve plate 2 and second extends described
In water-yielding stratum 7, the drainage after thus extraneous sewage is filtered in the presence of pumping equipment through film cortina wall enters the hollow of film silk
Passage flows to water-yielding stratum 7, realizes clean drainage output.
By injecting glue by film silk, aeration component 4, the first sieve plate 2 and the and of the second sieve plate 3 in the injecting glue layer 6
The sealing of housing 1 is fixed together, so as to realize the fixation of film silk and aerator.
The operation principle of this membrane bioreactor is that during processing sewage, water-yielding stratum 7 forms negative in the presence of pumping equipment
Sewage in pressure, cesspool is entered in hollow channel by film cortina wall, and during which film separation unit carries out separation of solid and liquid, to one
A little suspended particulate, colloidal particle or dissolubility larger molecular organicses, which are trapped in film surface and fenestra, to be deposited, and the filter after filtering
Water enters the hollow channel of film silk and flows to water-yielding stratum 7, realizes clean drainage output, and these drainages can make industry water, life water
Recycle, the environmental protection of section source.During flushing membrane silk, while it is distinguished and admirable to entering the offer of gas-bearing formation 8 malleation by blower fan, it is distinguished and admirable through being aerated component
4 air admission hole 46 enters inside it, and another side provides aeration component 4 malleation current using press water, and water flows through aeration component 4
Lower port 45 enter inside it, at this moment distinguished and admirable crossed inside aeration component 4 with current mixes, and from being aerated the upper of component 4
Port 44 discharges, and is thus aerated the gas-liquid two-phase fluid that discharges of component 4 from inside film tow to navigating within outside film tow
Between film silk and film silk, realize and film silk air stirring flushing and water are rinsed.
As can be seen here, the structure of above-mentioned membrane bioreactor is implemented, compared with prior art, with following beneficial effect
Really：First, positioned at intervals is carried out to every film silk using sieve plate, and by the injecting glue in injecting glue layer 6, glue is flowed into film silk
In gap between film silk, fully every film silk of cementation, efficiently solves the film tow of current bundle type structure in machine
Cause the phenomenon that film silk comes off because long-time left-right and front-back is swung in running, while such design can make every film silk
It can be fully used, membrane flux is high；Secondly, aeration component 4 is arranged on the central area of film tow, and aeration component 4 discharges
Gas-liquid two-phase fluid out can be realized to film silk from inside film tow to navigating within outside film tow between film silk and film silk
Air stirring rinse and water rinse, during be located at film tow central area film silk also effectively rinsed, it is no flushing not
The place arrived, flush efficiency is high, and membrane fouling control effect is good, and strainability is stable；3rd, it will be stirred originally with blower fan merely
Flushing becomes air stirring flushing+water and rinsed, and greatlys save fan energy consumption；Finally, by injecting glue layer 6, water-yielding stratum 7, enter the and of gas-bearing formation 8
The design of aeration component 4 is attached to same component (i.e. housing 1), it is not necessary to individually designed bottom aerating system, simple in construction, into
This is low, and is easily managed and repairs.
Further, in the present embodiment, the sieve plate 3 of the first sieve plate 2 and second is by many block size identical sides
The screen cloth Slab element 21 of shape spicing forming type successively, each screen cloth Slab element 21 provided with it is multiple be used to wear connect the film silk
Sieve aperture 9, the sieve aperture 9 is evenly arranged in array.Such design, is conducive to product modular to produce, meets different clients
Need.
Further, in the present embodiment, the first sieve plate 2, the second sieve plate 3 and aeration component 4 are assembled for convenience, institute
The bottom for stating housing 1 is provided with each described in the water inlet 10 being connected with the lower port 45, first sieve plate 2
The center of screen cloth Slab element 21 is provided with the gas-liquid mixed outlet 11 being connected with the upper port 44, second screen cloth
The center of each screen cloth Slab element 21 in plate 3 is provided with and is available for the first connecting hole 12 that the upper port 44 is passed through,
The dividing plate 5 is provided with and is available for the second connecting hole 13 that the lower port 45 is passed through.The aeration component 4 is stepped pipe fitting knot
Structure, it includes the upper pipe portion 41, middle pipe portion 42 and down leg 43 being sequentially connected, and the external diameter of the upper pipe portion 41 is less than the middle pipe
The external diameter in portion 42, the external diameter of the middle pipe portion 42 is less than the external diameter of the down leg 43.The upper pipe portion 41 is through described
Between one sieve plate 2 and second sieve plate 3, the upper end (upper port 44 for being aerated component 4) of the upper pipe portion 41 and institute
State gas-liquid mixed outlet 11 to coordinate, lower end and first connecting hole 12 of the upper pipe portion 41 coordinate；The middle pipe portion 42 is passed through
It is through between second sieve plate 3 and the dividing plate 5；The down leg 43 is through the bottom of the dividing plate 5 and the housing 1
Between portion, the upper end of the down leg 43 coordinates and sealed with second connecting hole 13, and the lower end of the down leg 43 (exposes
The lower port 45 of gas component 4) coordinate and seal with the water inlet 10.The junction of the middle pipe portion 42 and down leg 43 is provided with
Baffle plate 47, the external diameter of the baffle plate 47 is more than the internal diameter of second connecting hole 13.The inner edge of the upper end open of the housing 1 is set
There is the first screens 15 engaged with first sieve plate 2；The inwall of the housing 1 is provided with to be blocked with second sieve plate 3
The second screens 16 closed.During assembling, first the lower port 45 for being aerated component 4 is inserted in water inlet 10 through the second connecting hole 13,
At this moment baffle plate 47 is just stopped in the upper surface of dividing plate 5, the axially position of aeration component 4 is realized, then by the second sieve plate 3
It is inserted in predeterminated position that (namely upper pipe portion 41 is with by the upper port 44 of the first connecting hole 12 thereon alignment aeration component 4
Shoulder position between pipe portion 42), at this moment the second sieve plate 3 is just blocked by the second screens 16, finally leads to the first sieve plate 2
The upper port 44 for crossing the alignment aeration component 4 of gas-liquid mixed outlet 11 thereon is inserted in, and at this moment the first sieve plate 2 is just by the first card
Position 15 is blocked, and is thus completed the first sieve plate 2, the second sieve plate 3 and aeration component 4 and is assembled.
Further, in the present embodiment, be evenly arranged with the tube wall of the upper pipe portion 41 it is multiple be available for glue inject
Groove 48.Specifically, the groove 48 is provided with 4, it is symmetrical arranged on described on the tube wall of pipe portion 41 in two above and below both sides.
Such design can make it is each the film block that film silk thereon constitutes be connected on by screen cloth Slab element 21 and wearing securely fixed, so as to improve
The stability and reliability of whole product structure.
Further, in the present embodiment, the outside of the air admission hole 46 from the aeration component 4, which is internally tilted upward, to be set
Put.It is such be designed to ensure will not to have under water pressures the lower port 45 of air toward aeration component 4 to run, gas leakage.
Further, in the present embodiment, the both ends open of the housing 1, wherein one end are provided with water outlet component, and the other end is set
There is air inlet component；The water outlet component includes being covered on first end casing 17 of one end of the housing 1 and is arranged at described
Water outlet mouthpiece 18 on first end casing 17, the water outlet mouthpiece 18 is connected with the water-yielding stratum 7；The air inlet component includes lid
Located at the second end casing 19 and the intake interface 20 that is arranged on second end casing 19 of the other end of the housing 1,
The intake interface 20 with it is described enter gas-bearing formation 8 connect.Such design, optimizes the composition structure of housing 1, water outlet component and enters
Gas component can be located away from housing 1, make the manufacturing of housing 1 simpler, while can be according to the requirement of client, binding modules
The screen cloth Slab element 21 of change designs the housing 1 of different length specification, and water outlet component and air inlet component are used as two ends end cap
Structure is constant, is conducive to continuing to use in follow-up products of different specifications, saves production cost, and production more facilitates, accurately, fast.
Above disclosed is only presently preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of membrane bioreactor, it is characterised in that including film silk and aerator；The film silk has hollow channel, its
One end is closed, another end opening, and the aerator is connected to the openend of the film silk；The aerator is opened including upper end
Housing, the first sieve plate, the second sieve plate and the aeration component of mouth；It is provided with dividing plate in the housing, the dividing plate is by the shell
The cavity of body is separated into upper strata cavity and lower floor's cavity, and first sieve plate and the second sieve plate are spaced apart and arranged on described
In layer cavity and parallel to the dividing plate, using the cavity between first sieve plate and the second sieve plate as injecting glue layer, with institute
The cavity stated between the second sieve plate and dividing plate is water-yielding stratum, using lower floor's cavity to enter gas-bearing formation；First sieve plate and
Second sieve plate is equipped with multiple sieve apertures that the film silk is connect for wearing, and the sieve aperture is that uniform intervals are arranged；Along the housing
Length direction center line on be evenly spaced apart to be provided with multiple aeration components；The aeration component is fitting structure,
The aeration component is provided with upper port and lower port, the aeration component sequentially pass through from bottom to top it is described enter gas-bearing formation, water-yielding stratum
And injecting glue layer；The aeration component enters the position in gas-bearing formation provided with air admission hole described in being located at；Wear successively the openend of the film silk
The sieve aperture crossed on first sieve plate and the second sieve plate is extended in the water-yielding stratum；By injecting glue by institute in the injecting glue layer
State film silk, aeration component, the first sieve plate and the second sieve plate and housing seal is fixed together.
2. a kind of membrane bioreactor as claimed in claim 1, it is characterised in that first sieve plate and the second sieve plate
By the square screen cloth Slab element of many block size identicals successively spicing forming type, each screen cloth Slab element is used provided with multiple
In wearing the sieve aperture that connects film silk, the sieve aperture is evenly arranged in array.
3. a kind of membrane bioreactor as claimed in claim 2, it is characterised in that the bottom of the housing be provided with it is described under
The water inlet that port is connected, the center of each screen cloth Slab element in first sieve plate be provided with it is described
The centre bit of each screen cloth Slab element in the gas-liquid mixed outlet that upper port is connected, second sieve plate is installed
There is the first connecting hole for being available for the upper port to pass through, the dividing plate is provided with and is available for the second connecting hole that the lower port is passed through.
4. a kind of membrane bioreactor as claimed in claim 3, it is characterised in that the aeration component is stepped pipe fitting knot
Structure, it includes the upper pipe portion, middle pipe portion and down leg being sequentially connected, and the external diameter of the upper pipe portion is less than the outer of the middle pipe portion
Footpath, the external diameter of the middle pipe portion is less than the external diameter of the down leg.
5. a kind of membrane bioreactor as claimed in claim 4, it is characterised in that the upper pipe portion is sieved through described first
Between web plate and second sieve plate, the upper end of the upper pipe portion is exported with the gas-liquid mixed to be coordinated, the upper pipe portion
Lower end coordinates with first connecting hole；The middle pipe portion is through between second sieve plate and the dividing plate；Under described
Pipe portion through between the bottom of the dividing plate and the housing, the upper end of the down leg coordinate with second connecting hole and
Sealing, the lower end of the down leg coordinates and sealed with the water inlet.
6. a kind of membrane bioreactor as claimed in claim 4, it is characterised in that the junction of the middle pipe portion and down leg
Provided with baffle plate, the external diameter of the baffle plate is more than the internal diameter of second connecting hole.
7. a kind of membrane bioreactor as claimed in claim 4, it is characterised in that be uniformly arranged on the tube wall of the upper pipe portion
There are multiple grooves for being available for glue to inject.
8. a kind of membrane bioreactor as claimed in claim 1, it is characterised in that the air admission hole is from the aeration component
Outside internally tilts upward setting.
9. a kind of membrane bioreactor as claimed in claim 1, it is characterised in that the both ends open of the housing, wherein one
End is provided with water outlet component, and the other end is provided with air inlet component；The water outlet component includes being covered on the first of one end of the housing
End casing and the water outlet mouthpiece being arranged on first end casing, the water outlet mouthpiece are connected with the water-yielding stratum；It is described
Air inlet component includes being covered on the second end casing of the other end of the housing and is arranged at entering on second end casing
Gas interface, the intake interface with it is described enter gas-bearing formation connect.
10. a kind of membrane bioreactor as claimed in claim 1, it is characterised in that the inner edge of the upper end open of the housing
Provided with the first screens engaged with first sieve plate；The inwall of the housing is provided with what is engaged with second sieve plate
Second screens.
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|---|---|---|---|
| CN201710701187.1A CN107285459B (en) | 2017-08-16 | 2017-08-16 | Membrane bioreactor |
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|---|---|---|---|
| CN201710701187.1A CN107285459B (en) | 2017-08-16 | 2017-08-16 | Membrane bioreactor |
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| CN107285459B CN107285459B (en) | 2024-05-03 |
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| CN107285459B (en) | 2024-05-03 |
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