CN105836878A - Membrane bioreactor with duplex decoupling function - Google Patents
Membrane bioreactor with duplex decoupling function Download PDFInfo
- Publication number
- CN105836878A CN105836878A CN201610317103.XA CN201610317103A CN105836878A CN 105836878 A CN105836878 A CN 105836878A CN 201610317103 A CN201610317103 A CN 201610317103A CN 105836878 A CN105836878 A CN 105836878A
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- Prior art keywords
- housing
- membrane
- membrane bioreactor
- sewage treatment
- sludge
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Classifications
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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
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a sewage treatment device, and discloses a membrane bioreactor with a duplex decoupling function. The membrane bioreactor comprises at least two sewage treatment units and a membrane treatment unit. A diversion plate (8) is arranged in a first shell (1). The two sides of the diversion plate (8) are each provided with a biodegradable face plate (6). An aeration pipeline (2) is arranged at the bottom of the first shell (1). The membrane treatment unit comprises a second shell (13) and a membrane assembly (11). A staggered aeration unit (15) and an inclined plate reaction unit (16) are sequentially arranged below the membrane assembly (11) from top to bottom. The bottom of the membrane treatment unit and the bottoms of the sewage treatment units are each connected with a sludge setting tank (3). A pneumatic sludge stirring device (5) is arranged in each sludge setting tank (3). A brand-new concept is provided for improving the efficiency of the integrated membrane bioreactor, lowering the membrane separation running energy consumption, and prolonging the service life of the membrane assembly.
Description
Technical field
The present invention relates to sewage-treatment plant, particularly related to that there is the membrane bioreactor that dual solution couples.
Background technology
Membrane bioreactor is while effective integration microbial decomposition with film high efficiency separation dual function, the most not
The pollution problem of film can be brought with avoiding.Practice have shown that in a large number, fouling membrane has become this new technology and has developed institute
The bottleneck problem that must overcome.Analyze from its processing procedure and feature, fouling membrane be contact with film microgranule,
Colloidal particle or solute transportation, by physics, chemistry, biology and the effect of machinery, at film table
Absorption deposition in face, fenestra, and microorganism is in the accumulation at film water interface, causes film effective aperture to diminish
Even blocking, cause the through-current capacity of film to decline to a great extent, drag losses is greatly promoted (operation energy consumption is unprecedented soaring),
Thus efficiently separate the phenomenon that declines to a great extent of characteristic.As it has been described above, the pollution of film in membrane bioreactor, it is
Extremely complex process, its evolutionary process is coupled the most strongly by multiple factors to be affected.
For the integral type film subject matter that faced of biology then: for corresponding given sewage kind, life
Under the conditions of the borders such as thing reactor types and membrane property, how on the basis of operation energy consumption minimization,
Under the operating conditions such as changeable component, concentration, temperature and flow, effectively control the pollution of film.Dirty according to film
The definition of dye, this effectiveness necessarily should show themselves in that the absorption to microgranule, colloidal solid and solute transportation
Accumulation, and microorganism is on the conservative control that membrane interface is piled up.Film for integral type film biological reactor
For assembly, under traditional version, the most inherently hinder the formation of fouling membrane, be greatly reduced
Running resistance, improves operation maintenance condition and becomes the fundamental issue that membrane bioreactor is urgently to be resolved hurrily.
Summary of the invention
The present invention is directed to that reactor efficiency in prior art is low, membrance separation operation energy consumption declines and the membrane module longevity
Order short shortcoming, it is provided that there is the membrane bioreactor that dual solution couples.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
There is the membrane bioreactor that dual solution couples, at least two group sewage treatment units and one group of film
Reason unit, often group sewage treatment unit all includes the first housing, is provided with water distributor on the left of the first case top,
The right side of the first case top is provided with outlet pipe, the water distributor of right side sewage treatment unit and left side sewage disposal
The outlet pipe of unit is connected, and is provided with along the axial deflection plate of the first housing, in the first housing in the first housing
Hydraulic barrier both sides be equipped with biological degradability panel, the first housing bottom is provided with aerated conduit, and film processes
Unit include the second housing and the membrane module being arranged in the second housing, the top left side of the second housing be provided with into
The mouth of a river, water inlet connects with the outlet pipe of rightmost side sewage treatment unit, is provided with along second in the second housing
Housing axial mud baffle plate, water inlet is positioned at the left side of mud baffle plate, and the right side of mud baffle plate is provided with film
Assembly, the lower section of membrane module is from top to bottom sequentially provided with staggered aeration unit and swash plate reaction member, and film processes
All being connected with sludge settling groove bottom unit bottom and sewage treatment unit, sludge settling groove is cone, its end
Portion's radius is less than top radius, and sludge settling trench bottom is connected with return duct, is provided with strength dirty in sludge settling groove
Mud agitating device, strength sludge stirring device includes central shaft and agitation pipe, and agitation pipe is provided with pore.This
Invention first passes through the mode of the flowing of the first housing and deflection plate control muddy water, through twice mud-water separation solution
Coupling, frees membrane module from traditional mud environment, fundamentally destroys the condition that membrane module pollutes；
The theory controlled based on flowing, is that membrane module builds independent cross-current cutting system by staggered aeration unit,
Under the lowest energy consumption condition, form efficient shear action on film surface, destroy and pollute the waterpower bar formed
Part；It addition, this invention is for sludge reflux inefficiency in bioreactor, cause biodegradation difficulty
The traditional problem promoted, the angle controlled from flowing, improve flowing by strength sludge stirring device
System；It is the lifting of integral type membrane bioreactor efficiency, membrance separation operation energy consumption in terms of these three
Fall and membrane module are that life-time dilatation provides brand-new thinking.
As preferably, strength sludge stirring device also includes air pump, the pore phase of the gas outlet of air pump and stirring pipe
Even, pore is made to keep barotropic state.Air pump and the setting of pore so that air-flow is continuously from stirring pipe
Outwards emerging, pore keeps barotropic state, and the mud in sludge settling groove is in and is stirred pipe and bubble disturbance
State, it is to avoid mud hardens blocking, it also avoid the microorganism in activated sludge in sewage-treatment plant
Dormancy is dead.
As preferably, stirring pipe one end of strength sludge stirring device is affixed with central shaft, from fixing end to freedom
End, the radius of curvature of stirring pipe is gradually increased.Stirring pipe radius of curvature assembly increases, and stirring pipe is with central shaft
The rotation relatively linear type agitating device of the disturbance to mud that turns around is bigger, can preferably prevent that mud is solid to harden,
Holding means is in efficient operation.Stirring pipe radical be one to number with, install in the shape of a spiral so that
Mud in sludge settling groove is in state of wriggling slowly, and the secondary being i.e. formed without mud rises, and has enough
Destroy the hydraulics of mud quiescent setting, it is ensured that mud can efficiently flow out from mud return line uniformly,
Avoid the short stream of mud of traditional approach, the problem that mud cannot reflux.
As preferably, strength sludge stirring device includes at least two-layer stirring pipe, during every layer of stirring pipe is each perpendicular to
Mandrel.The sludge agitation pipe of at least two-layer, the mud of every layer is included on the central shaft of strength sludge stirring device
Stirring pipe includes again at least 3 with the stirring pipe being perpendicular to central shaft symmetrically arranged, it is ensured that mud is in slow
Slowly wriggling state, the secondary being both formed without mud rises, and the most enough breaks the hydraulics of mud quiescent settling.
As preferably, sewage subsider sidewall is provided with vibrating reed.It is solid that the setting of vibrating reed avoids mud to harden,
Avoid the short stream of sewage and guarantee sludge reflux.
As preferably, the return duct of each sewage treatment unit is all connected with return header, and return duct and backflow are total
Inside pipe wall is equipped with vibrating reed.Mud can be back to biological degradability panel by return duct and return header,
It is solid that the setting of vibrating reed avoids mud to harden, it is to avoid the short stream of sewage and guarantee sludge reflux.
As preferably, in biological degradability panel, it is filled with the filler for attached growth of microorganisms.The setting of filler
Limit the flow direction of sewage, sewage is played the effect of current limliting, and convenient microbe apposition growth.
As preferably, staggered aeration unit includes at least two interlaced aeration tubes.Table at membrane module
Form the mechanism efficiently sheared on face, again destroy the hydraulics of sludge settling, further ensure that membrane module
Separation local environment is good, promotes the Effec-tive Function of whole reaction unit.
As preferably, swash plate reaction member includes that swash plate, swash plate are provided with and is 20 °-50 ° with water (flow) direction and inclines
The swash plate groove at oblique angle, swash plate groove at least two.Swash plate has dual function, the work of first sloping plate deposition
With, mud is utilized inertia and Gravity Separation out from water by secondary, additionally the available profit of swash plate the selection of material
In the material of biomembrane molding, in swash plate groove, form the biodegradation again to sewage, reduce glue as far as possible
Matter pollutant enter the probability of membrance separation section.
As preferably, the radial direction of the first housing is 1:(1.2～3 with the ratio of axial length).First housing is the longest
Spend longer, it is possible to be set to deep-well reaction or other response types according to sewage type, have and well adapt to
Property.
As preferably, high and top diameter the ratio of sludge settling groove is 1:(1.8～2.6).Sludge settling groove has
Certain gradient, facilitates mud to flow to return duct.
Due to the fact that and have employed above technical scheme there is significant technique effect: the present invention first passes through
First housing and deflection plate control the mode of the flowing of muddy water, decouple, by membrane module through twice mud-water separation
Free from traditional mud environment, fundamentally destroy the condition that membrane module pollutes；Based on flowing control
The theory of system, is that membrane module builds independent cross-current cutting system, the lowest by staggered aeration unit
Energy consumption condition under, form efficient shear action on film surface, destroy and pollute the hydraulics formed；It addition,
This invention, for sludge reflux inefficiency in bioreactor, causes the tradition that biodegradation difficulty promotes
Problem, the angle controlled from flowing, improve current system by strength sludge stirring device；From this
Three aspects are the lifting of integral type membrane bioreactor efficiency, the decline of membrance separation operation energy consumption and film group
Part is that life-time dilatation provides brand-new thinking.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the strength sludge stirring device of Fig. 1.
The toponym that in accompanying drawing, each number designation is referred to is as follows: 1 first housing, 2 aerated conduits, 3
Sludge settling groove, 4 water distributors, 5 strength sludge stirring devices, 6 biological degradability panels, 7
Outlet pipe, 8 deflection plates, 9 return ducts, 10 return headers, 11 membrane modules, 12 mud baffle plates,
13 second housings, 14 water inlets, 15 interlock aeration unit, 16 swash plate reaction members, 17 shake
Moving plate, 51 central shafts, 52 stirring pipe, 53 pores, 151 aeration tubes, 161 swash plates, 162
Swash plate groove.
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
There is the membrane bioreactor that dual solution couples, at least two group sewage treatment units and one group of film
Reason unit, often group sewage treatment unit all includes that the first housing 1, the first housing 1 top left side are provided with water distributor
4, the right side at the first housing 1 top is provided with outlet pipe 7, the water distributor 4 of right side sewage treatment unit and left side
The outlet pipe 7 of sewage treatment unit is connected, and is provided with along the axial baffling of the first housing 1 in the first housing 1
Plate 8, hydraulic barrier 8 both sides in the first housing 1 are equipped with biological degradability panel 6, first housing 1 end
Portion is provided with aerated conduit 2, and film processing unit includes the second housing 13 and the film group being arranged in the second housing 13
Part 11, the top left side of the second housing 13 is provided with water inlet 14, water inlet 14 and rightmost side sewage disposal list
Unit outlet pipe 7 connect, be provided with in the second housing 13 along the second housing 13 axial mud baffle plate 12,
Water inlet 14 is positioned at the left side of mud baffle plate 12, and the right side of mud baffle plate 12 is provided with membrane module 11, membrane module
The lower section of 11 is from top to bottom sequentially provided with staggered aeration unit 15 and swash plate reaction member 16, film processing unit
All being connected with sludge settling groove 3 bottom bottom and sewage treatment unit, sludge settling groove 3 is cone, bottom it
Radius is less than top radius, is connected with return duct 9, is provided with strength in sludge settling groove 3 bottom sludge settling groove 3
Sludge stirring device 5, strength sludge stirring device 5 includes central shaft 51 and agitation pipe 52, stirs pipe 52
It is provided with pore 53.
Strength sludge stirring device 5 also includes air pump, pore 53 phase of the gas outlet of air pump and stirring pipe 52
Even, pore 53 is made to keep barotropic state.
Stirring pipe 52 one end of strength sludge stirring device 5 is affixed with central shaft 51, from fixing end to freedom
End, the radius of curvature of stirring pipe 52 is gradually increased.
Strength sludge stirring device 5 includes that at least two-layer stirring pipe 52, every layer of stirring pipe 52 are each perpendicular to center
Axle 51.
Sewage subsider 3 sidewall is provided with vibrating reed 17.
The return duct 9 of each sewage treatment unit is all connected with return header 10, return duct 9 and return header
10 inwalls are equipped with vibrating reed 17.
The filler for attached growth of microorganisms it is filled with in biological degradability panel 6.
Staggered aeration unit 15 includes three interlaced aeration tubes 151.
It is 30 ° of inclinations angle that swash plate reaction member 16 includes that swash plate 161, swash plate 161 are provided with water (flow) direction
Swash plate groove 162.
In a word, the foregoing is only presently preferred embodiments of the present invention, all made according to scope of the present invention patent
Impartial change with modify, all should belong to the covering scope of patent of the present invention.
Claims (9)
1. there is the membrane bioreactor that dual solution couples, it is characterised in that: include at least two group sewage treatment units
With one group of film processing unit, often group sewage treatment unit all includes the first housing (1), the first housing (1)
Top left side is provided with water distributor (4), and the right side at the first housing (1) top is provided with outlet pipe (7), right
The water distributor (4) of side sewage treatment unit is connected with the outlet pipe (7) of left side sewage treatment unit, the
It is provided with in one housing (1) along the axial deflection plate (8) of the first housing (1), the first housing (1)
Interior hydraulic barrier (8) both sides are equipped with biological degradability panel (6), and the first housing (1) bottom sets
Having aerated conduit (2), film processing unit includes the second housing (13) and is arranged on the second housing (13)
Interior membrane module (11), the top left side of the second housing (13) is provided with water inlet (14), water inlet (14)
Connect with the outlet pipe (7) of rightmost side sewage treatment unit, be provided with in the second housing (13) along
Two housings (13) axial mud baffle plate (12), water inlet (14) is positioned at mud baffle plate (12)
Left side, the right side of mud baffle plate (12) is provided with membrane module (11), the lower section of membrane module (11) by
It is sequentially provided with down staggered aeration unit (15) and swash plate reaction member (16), at the bottom of film processing unit
All being connected with sludge settling groove (3) bottom portion and sewage treatment unit, sludge settling groove (3) is cone,
Its bottom radius is less than top radius, and sludge settling groove (3) bottom is connected with return duct (9), and mud sinks
Being provided with strength sludge stirring device (5) in fall groove (3), strength sludge stirring device (5) includes center
Axle (51) and agitation pipe (52), agitation pipe (52) is provided with pore (53).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: strength
Sludge stirring device (5) also includes air pump, the gas outlet of air pump and the pore (53) of stirring pipe (52)
It is connected, makes pore (53) keep barotropic state.
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: strength
Stirring pipe (52) one end of sludge stirring device (5) is affixed with central shaft (51), from fixing end to
Free end, the radius of curvature of stirring pipe (52) is gradually increased.
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: strength
Sludge stirring device (5) includes that at least two-layer stirring pipe (52), every layer of stirring pipe (52) are each perpendicular to
Central shaft (51).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: sewage
Subsider (3) sidewall is provided with vibrating reed (17).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: each
The return duct (9) of sewage treatment unit is all connected with return header (10), return duct (9) and backflow
House steward (10) inwall is equipped with vibrating reed (17).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: biological
The filler for attached growth of microorganisms it is filled with in degradability panel (6).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: staggered
Aeration unit (15) includes at least two interlaced aeration tubes (151).
The most according to claim 1 have the membrane bioreactor that dual solution couples, it is characterised in that: swash plate
It is 20 °-50 ° that reaction member (16) includes that swash plate (161), swash plate (161) are provided with water (flow) direction
The swash plate groove (162) at inclination angle, swash plate groove (162) at least two.
Priority Applications (1)
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| CN201610317103.XA CN105836878B (en) | 2016-05-12 | 2016-05-12 | Membrane bioreactor |
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| CN201610317103.XA CN105836878B (en) | 2016-05-12 | 2016-05-12 | Membrane bioreactor |
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| CN105836878B CN105836878B (en) | 2018-11-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107827230A (en) * | 2018-01-04 | 2018-03-23 | 韩淇 | For the high nitrogen in low temp area, the constant temperature intelligence control MBR water treatment facilities of phosphorus sewage |
| CN108511745A (en) * | 2018-05-09 | 2018-09-07 | 哈尔滨工业大学 | A kind of alkalinity aluminium-air cell group electrolyte and its matching used electrolyte tank |
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| CN108511745A (en) * | 2018-05-09 | 2018-09-07 | 哈尔滨工业大学 | A kind of alkalinity aluminium-air cell group electrolyte and its matching used electrolyte tank |
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| Publication number | Publication date |
|---|---|
| CN105836878B (en) | 2018-11-02 |
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