CN209721852U - A kind of membrane bioreactor - Google Patents
A kind of membrane bioreactor Download PDFInfo
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- CN209721852U CN209721852U CN201822061272.9U CN201822061272U CN209721852U CN 209721852 U CN209721852 U CN 209721852U CN 201822061272 U CN201822061272 U CN 201822061272U CN 209721852 U CN209721852 U CN 209721852U
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Abstract
The utility model discloses a kind of membrane bioreactors, comprising: wall, membrane module, agitating unit, filler unit and bottom spoil disposal unit；The utility model makes the water body in membrane bioreactor be in eddy flow state by agitating unit, and fine particle is concentrated among eddy flow by centrifugal force effect, far from the membrane module in wall groove, it is possible to prevente effectively from fouling membrane caused by fine particle；The placement location of filler unit is abundant, so that the presence of filler increases the impact capacity and processing capacity of the whole anti-organic loading of reactor；In addition, filler and agitating unit coaxial rotating, when rotation, is played the role of stirring, at the same when on filler anaerobism or aerobic biologic membrane grow into certain thickness, will be automatically updated due to the shearing force that rotation generates falls off.
Description
Technical field
The utility model belongs to environmental protection treatment technical field more particularly to a kind of membrane bioreactor.
Background technique
Film-bioreactor (MBR) be it is a kind of efficient membrane separation technique is combined with traditional activated sludge process it is novel
Water processing reactor, due to the filtration of film, biology is completely trapped in bioreactor, realizes hydraulic detention time
With being completely separated for sludge age, sludge bulking problem is eliminated in traditional active sludge since film-bioreactor has to dirt
It is high to contaminate object removal efficiency, nitrification ability is strong, and stable effluent quality, excess sludge production is low, and design operates the advantages that simplifying, tool
There is very big application potential.
It is traditional to be thoroughly mixed that formula MBR membrane cisterna is mostly rectangular, and membrane module is placed among pond body, it is carried out by ascending current
Stirring, the uniform mixing of various substances can accelerate the generation of fouling membrane；And membrane module accounts for the larger position of pond body, it is difficult to which addition is filled out
Material, so that organic loading is restricted, it can only be by increasing pond body.
Utility model content
The purpose of this utility model is to overcome drawbacks described above of the existing technology, provide a kind of membrane biological reaction
Device, structure is simple, and there is enough spaces to place anaerobism or aerobic filler, increases the anti-organic loading and processing energy of reactor
Power.
To achieve the goals above, in the embodiment on basis, on the one hand the utility model provides a kind of membrane bioreaction
Answer device, comprising:
Wall, as the shell of the membrane bioreactor, the wall-body energy saving setting is fluted；
Membrane module, the membrane module are installed in the groove of the wall；
Agitating unit surrounds the space interior to be formed, including agitating shaft and stirring blade positioned at the wall；
Filler unit is located on the agitating shaft；
Bottom spoil disposal unit is located at below the wall.
In a preferred embodiment, the wall is uniformly arranged multiple grooves, the groove along its circumferencial direction
Number >=2.
In a preferred embodiment, the membrane module includes film and the bracket for carrier film, and the bracket is solid
It is scheduled in the groove.
In a preferred embodiment, the bottom spoil disposal unit includes the bucket connecting with wall lower section.
In a preferred embodiment, the bucket is tilt taper.
In a preferred embodiment, the filler unit rotates about on the agitating shaft.
In a preferred embodiment, the filler unit is rigid anaerobism composite filling or rigid aerobic combination
Filler.
In a preferred embodiment, the agitating unit further includes the electricity being arranged in outside membrane bioreactor
Machine, with the stirring axis connection.
In a preferred embodiment, the membrane bioreactor further includes the pipe connecting with membrane module top
The water in the membrane module is discharged by the pipeline for road, and the pipeline is connected to external pump.
In a preferred embodiment, the lower part of the membrane bioreactor is additionally provided with aeration unit；
Preferably, the aeration unit is the multiple aeration tubes being circumferentially arranged along bucket inner wall.
In a preferred embodiment, the inner space that the wall surrounds is column.
In a preferred embodiment, the agitating unit is located at the wall and surrounds the center to form space interior
Position.
Through the above technical solutions, the utility model membrane bioreactor, comprising: wall, agitating unit, is filled out membrane module
Material unit and bottom spoil disposal unit；The utility model makes the water body in membrane bioreactor be in eddy flow shape by agitating unit
State, fine particle is concentrated on centre by centrifugal force effect, and membrane module is mounted in wall, it is possible to prevente effectively from fine particle draws
The fouling membrane risen；Membrane module is arranged in the groove of wall simultaneously, effectively reduces membrane bioreactor inner volume, filler unit
For placement location with regard to abundant, the presence of filler increases the organic loading and processing capacity of reactor；In addition, filler and agitating unit
Connected by same axis, when rotation, plays the role of stirring, while when on filler anaerobism or aerobic biologic membrane grow into centainly
Thickness will automatically update due to the shearing force that rotation generates falls off.In addition, the biomembrane grown on anaerobism composite filling can make
Denitrifying bacteria is in stable state, can reduce SMP and EPS content, to reduce fouling membrane to a certain extent.Bottom spoil disposal
Unit is located at below the wall, when spoil disposal, closes agitating unit, under the eddy flow gradually weakened, mud be will be slow into eddy flow
The heart is close, and then rapid precipitation, and mud is discharged by the spoil disposal unit that bottom is arranged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 membrane bioreactor of the utility model embodiment；
Fig. 2 is the wall body structure schematic diagram in Fig. 1.
Fig. 3 is the structural schematic diagram of 2 membrane bioreactor of the utility model embodiment；
Fig. 4 is the wall body structure schematic diagram in Fig. 3.
Description of symbols
1- wall, 2- membrane module, 3- filler unit, the bottom 4- spoil disposal unit (bucket), 5- agitating shaft, 6- blade, 7- electricity
Machine, 8- aeration unit.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as "horizontal", "vertical" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, define " first ",
The feature of " second " can explicitly or implicitly include one or more of the features.In the description of the utility model.
Unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Membrane bioreactor is while effective integration microorganism decomposition and film efficiently separate double action, also unavoidably
Bring the pollution problem of film in ground.Largely practice have shown that, the bottleneck that fouling membrane has become the development of this new process and must overcome is asked
Topic.It is analyzed from its treatment process and feature, fouling membrane is the particle, colloidal particle or solute transportation contacted with film, is passed through
Physics, chemical, biological and mechanical effect, the absorption deposition and microorganism in film surface, fenestra are in film water circle
The accumulation in face causes film effective aperture to become smaller even and blocks, cause the through-current capacity of film to decline to a great extent, drag losses greatly promote
(operation energy consumption is unprecedented soaring), to efficiently separate the phenomenon that declines to a great extent of characteristic.As described above, film in membrane bioreactor
Pollution, is extremely complex process, evolutionary process is mutually coupled strongly by multiple factors to be influenced.In addition, membrane module one
As larger position is occupied in reactor, it is difficult to anaerobism filler is added, so that its organic loading is restricted.
For these defects that traditional MBR membrane reactor is exposed, the utility model embodiment provides a kind of film biology
Reactor, comprising:
Wall, as the shell of the membrane bioreactor, the wall-body energy saving setting is fluted；
Membrane module, the membrane module are installed in the groove of the wall；
Agitating unit surrounds the space interior to be formed, including agitating shaft and stirring blade positioned at the wall；
Filler unit is located on the agitating shaft；
Bottom spoil disposal unit is located at below the wall.
Wherein, using wall as the shell of membrane bioreactor, the space that water body surrounds inside it is handled, above-mentioned
With no restriction, such as rectangular, column etc. is preferably cylindric for the shape in the space surrounded, the wall for avoiding water body eddy flow from generating
Resistance and destroy eddy flow.
Above-mentioned membrane module has the bracket for carrying it, bracket is placed in the groove of above-mentioned wall, and uses routine side
Formula is fixed, such as bolt etc., and specific fixed form is with no restriction.Number >=2 of groove, it is preferable that in each groove
Place membrane module.There are many form, board-like, tubular type, helix tube type, board-like curtain, doughnut curtain etc. for above-mentioned membrane module.
The utility model embodiment considers from combined factors such as performance, source and installation conveniences, it is preferable to use doughnut curtain type membrane.
The material of hollow fiber film thread is generally PVDF plastics or PVC plastic, and film wire diameter is between 1.0-2.8mm, length 1-2m.
The agitating shaft of above-mentioned agitating unit is connected to external motor, drives agitating shaft and stirring blade rotation；Paddle
Plate shape and speed of agitator etc. are with no restriction.
Above-mentioned filler unit, it is rotatable to be centered around on above-mentioned agitating shaft, it can be anaerobism composite filling or aerobic combination filler.
When if aerobic combination filler, aeration tube need to be added.Above-mentioned filler unit use aerobic/anaerobic composite filling, be by fiber filament,
Plastics ring plate, casing, axial cord composition, the equal easy to be filmed in aerobic/anaerobic.Composite filling is fixed by the bracket on axis.It compares
Plastic filler, composite filling are easier to biofilm, and denitrification effect is more preferable.
Above-mentioned bottom spoil disposal unit, spoil disposal outlet can be set to tilt taper, be easy to spoil disposal, preferably tilt 45 °.
The utility model embodiment can save enough space placements and fill out by installing membrane module to wall groove
Material, rotary anaerobism or aerobic combination filler, which is arranged, can increase the organic loading of reactor, while can also make molten in water body
Solution property material mixing is uniform, due to rotating the eddy flow generated, effect of the particulate matter by different centrifugal force in water body, so that thin
Grain object reduces the fouling membrane as caused by fine particle close to center and far from the membrane module of wall；In addition anaerobism or aerobic
Filler can be grown into biomembrane during processing, and the rotation of agitating shaft is so that the stress that biomembrane is rotated by one, works as life
Object film grow into certain thickness will Automatic-falling, the biomembrane on anaerobism or aerobic filler is updated, due to anaerobism or aerobic life
The growth of object film, it is possible to reduce the spoil disposal in reactor reduces Treatment of Sludge expense to a certain extent.In addition, by slow
Cyclonic action, can make disorder water body keep a relatively stable state, make anaerobism wadding body continued growth, keep
The activity of anaerobic bacteria.It is exported by setting tilt taper spoil disposal, after Stirring stops, the remaining cyclonic action meeting of water body
It so that mud is gradually assembled to center, and then can achieve the effect of rapid precipitation, finally reach quick spoil disposal.Thus, this is practical
New embodiment has preferably been extenuated because fine particle and dissolved phenols SMP/ extracellular polymeric EPS are to fouling membrane
Degree, increase organic loading, improve effluent characteristics, the growth of anaerobism or aerobic biologic membrane can also reduce spoil disposal.
Technical scheme is described in detail below by specific embodiment, it should be understood that the embodiment of the present application with
And the specific features in embodiment are the detailed description to technical scheme, rather than to the limit of technical scheme
Fixed, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
Embodiment 1
As depicted in figs. 1 and 2, a kind of membrane bioreactor of the utility model embodiment, comprising: wall 1, MBR membrane module
2, agitating unit (agitating shaft 5 and blade 6), rigid anaerobism composite filling unit 3 and bottom spoil disposal unit 4 (bucket)；By wall 1
As the shell of the membrane bioreactor, is surrounded inside wall and form cylindrical space；The wall-body energy saving is provided with recessed
Slot；Membrane module 2 includes film and the bracket for carrier film, and the bracket is fixed on 6 that wall is along the circumferential direction uniformly arranged
In strip-shaped groove；Agitating unit is located at the center that the wall surrounds the space to be formed, including agitating shaft 5 and paddle
Piece 6；Rigid anaerobism composite filling is uniformly arranged on agitating shaft 5；Bottom spoil disposal unit 4 includes the bucket connecting with wall lower section
And sludge pipe, bucket are in 45 ° of tilt taper, sludge pipe setting is vertically-mounted along wall 1 in reactor bottom, by outer
The slush pump of portion's setting takes out mud.By the way that 45 ° of inclined buckets are arranged, after Stirring stops, the remaining cyclonic action of water body
Meeting and then can achieve the effect of rapid precipitation, finally reach quick spoil disposal so that mud is gradually assembled to center.
Agitating unit further includes the motor 7 being arranged in outside membrane bioreactor, is connect with the agitating shaft 5.
Membrane bioreactor further includes the pipeline (not illustrating in Fig. 1, be conventional structure) connecting with membrane module top, is led to
Water in membrane module is discharged piping, which is connected to external water pump, carries out pump drainage water.Membrane bioreactor is from bottom
Water inlet is similar to up-flow UASB.
Above-mentioned membrane module selects doughnut curtain type membrane.The material of hollow fiber film thread is PVC plastic, and film wire diameter exists
Between 2.0-2.8mm, length 1.5-2.0m.
Agitating unit runs entire membrane bioreactor when opening, and water body reaches normal cyclonic action；It is closed when spoil disposal
Agitating unit, the eddy flow of water body can allow sludge rapid subsidence, and sludge pipe setting is taken out in bottom, the slush pump for passing through external setting
Mud.Slow eddy flow can keep water flow to be in a relatively steady state, provide good growth ring for anaerobe
Border avoids damage to big anaerobic sludge wadding body.When eddy flow in water body different-grain diameter particle as rotation generate centrifugation
Power and be in different location, for little particle close to rotation center, bulky grain leans on proximal edge, thus reduce finely ground particle substance close to
MBR film and the fouling membrane generated can mitigate the fouling membrane generated by fine particle to a certain extent.Membrane module is arranged in wall
In the groove of body, rotary water current is not influenced, while fouling membrane can also be mitigated.
Embodiment 2
As shown in Figure 3 and Figure 4, similar to Example 1, a kind of membrane bioreactor of the utility model embodiment, comprising: wall
Body 1, MBR membrane module 2, agitating unit (agitating shaft 5 and blade 6), rigid aerobic combination filler unit 3, bottom spoil disposal unit 4
(bucket) and aeration unit 8, aeration unit 8 are the circle nanometer aeration pipe being arranged on bucket inner wall.By the way that nanotube is arranged
Aeration to reach above-mentioned cyclonic action, while will not also subtract so that aeration is unlikely to destroy the eddy flow that rotation generates in water body
Required dissolved oxygen in low water body.
Above-mentioned membrane module selects doughnut curtain type membrane.The material of hollow fiber film thread is PVDF plastics, and film wire diameter exists
Between 1.0-2.0mm, length 1-1.5m.
Through applying, the present embodiment handles the ability of water body compared with tradition, and the volumetric loading of reactor improves 30% left side
The right side, up to 6.56kgCOD/ (m3.d).The COD removal rate of sewage is up to 99.95%, and membrane module does not occur apparent film blocking.
In addition, SMP and EPS content 60% or so can be reduced.
According to other compositions and operation skill common for this field of the membrane bioreactor of the utility model embodiment
All be for art personnel it is known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, those skilled in the art can incite somebody to action
Different embodiments or examples described in this specification are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of membrane bioreactor, it is characterised in that: include:
Wall, as the shell of the membrane bioreactor, the wall-body energy saving setting is fluted；
Membrane module, the membrane module are installed in the groove of the wall；
Agitating unit surrounds the space interior to be formed, including agitating shaft and stirring blade positioned at the wall；
Filler unit is located on the agitating shaft；
Bottom spoil disposal unit is located at below the wall.
2. membrane bioreactor according to claim 1, it is characterised in that: the groove is uniform along the circumferencial direction of wall
Setting, number >=2 of the groove.
3. membrane bioreactor according to claim 1 or 2, it is characterised in that: the membrane module includes film and for holding
The bracket of film carrier, the bracket are fixed in the groove.
4. membrane bioreactor according to claim 1, it is characterised in that: the bottom spoil disposal unit includes and wall
The bucket of lower section connection；The bucket is tilt taper.
5. membrane bioreactor according to claim 1, it is characterised in that: the filler unit is rotated about described
On agitating shaft.
6. membrane bioreactor according to claim 1 or 5, it is characterised in that: the filler unit is rigid anaerobism
Composite filling or rigid aerobic combination filler.
7. membrane bioreactor according to claim 1, it is characterised in that: the membrane bioreactor further includes and film
The water in the membrane module is discharged by the pipeline for the pipeline of component top connection, and the pipeline is connected to external pump.
8. membrane bioreactor according to claim 1 or 4, it is characterised in that: the lower part of the membrane bioreactor is also
It is provided with aeration unit.
9. membrane bioreactor according to claim 8, it is characterised in that: the aeration unit is along bucket inner wall week
To multiple aeration tubes of setting.
10. membrane bioreactor according to claim 1, it is characterised in that: the inner space that the wall surrounds is column
Shape.
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| CN201822061272.9U CN209721852U (en) | 2018-12-10 | 2018-12-10 | A kind of membrane bioreactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516550A (en) * | 2018-12-10 | 2019-03-26 | 长江大学 | A kind of membrane bioreactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516550A (en) * | 2018-12-10 | 2019-03-26 | 长江大学 | A kind of membrane bioreactor |
| CN109516550B (en) * | 2018-12-10 | 2024-03-12 | 长江大学 | Operation method of membrane bioreactor |
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