CN105836878B - Membrane bioreactor - Google Patents
Membrane bioreactor Download PDFInfo
- Publication number
- CN105836878B CN105836878B CN201610317103.XA CN201610317103A CN105836878B CN 105836878 B CN105836878 B CN 105836878B CN 201610317103 A CN201610317103 A CN 201610317103A CN 105836878 B CN105836878 B CN 105836878B
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- shell
- sludge
- membrane bioreactor
- membrane
- sewage treatment
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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 present invention relates to sewage-treatment plants, disclose membrane bioreactor, it includes at least two groups sewage treatment unit and one group of film process unit, hydraulic barrier (8) is equipped in first shell (1), hydraulic barrier (8) both sides are equipped with biological degradability panel (6), first shell (1) bottom is equipped with aerated conduit (2), film process unit includes second shell (13) and membrane module (11), the lower section of membrane module (11) is from top to bottom equipped with staggeredly aeration unit (15) and inclined plate reaction member (16) successively, film process unit bottom and sewage treatment unit bottom are connected with sludge settling slot (3), strength sludge stirring device (5) is equipped in sludge settling slot (3).The present invention is the promotion of integral type membrane bioreactor efficiency, the decline of UF membrane operation energy consumption and membrane module are that life-time dilatation provides completely new thinking.
Description
Technical field
The present invention relates to sewage-treatment plants, more particularly to membrane bioreactor.
Background technology
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, fouling membrane has become the bottleneck that the development of this new process must overcome and asks
Topic.It is analyzed from its processing procedure 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, and evolutionary process is mutually coupled strongly by multiple factors to be influenced.
It is then for the biological main problem faced of integral type film：For accordingly given sewage species, biological respinse
Under the conditions of the boundaries such as device form and membrane property, how on the basis of operation energy consumption minimization, changeable component, concentration,
Under the operating conditions such as temperature and flow, the pollution of film is effectively controlled.According to the definition of fouling membrane, this validity should necessarily show
For：Absorption accumulation and microorganism to particle, colloidal solid and solute transportation is in the reasonable control that membrane interface is accumulated.
For the membrane module of integral type film biological reactor, under traditional structure type, how fouling membrane is inherently hindered
Formation, be greatly reduced running resistance, improving operation and maintenance condition becomes membrane bioreactor fundamental issue urgently to be resolved hurrily.
Invention content
The present invention is directed to low reactor efficiency in the prior art, the decline of UF membrane operation energy consumption and membrane module short life
Disadvantage provides membrane bioreactor.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：
Membrane bioreactor, including at least two groups sewage treatment unit and one group of film process unit, every group of sewage disposal list
Member includes first shell, and first shell top left side is equipped with water distributor, and the right side at the top of first shell is equipped with outlet pipe, right side
The water distributor of sewage treatment unit is connected with the outlet pipe of left side sewage treatment unit, is equipped with along first shell in first shell
Axial hydraulic barrier, the hydraulic barrier both sides in first shell are equipped with biological degradability panel, and first shell bottom is equipped with
Aerated conduit, film process unit include second shell and the membrane module in second shell, the top left side of second shell
Equipped with water inlet, water inlet is connected to the outlet pipe of rightmost side sewage treatment unit, is equipped with along second shell in second shell
Axial sludge baffle, water inlet are located at the left side of sludge baffle, and the right side of sludge baffle is equipped with membrane module, under membrane module
Side is from top to bottom equipped with staggeredly aeration unit and inclined plate reaction member, film process unit bottom and sewage treatment unit bottom successively
It is connected with sludge settling slot, sludge settling slot is cone, and bottom radius is less than top radius, and sludge settling trench bottom is connected with
Return duct, sludge settling slot is interior to be equipped with strength sludge stirring device, and strength sludge stirring device includes that central shaft and agitation are managed, and is stirred
Dynamic pipe is equipped with stomata.The present invention is first in such a way that first shell and hydraulic barrier control the flowing of muddy water, by twice
Mud-water separation decouples, and membrane module is freed from traditional sludge environment, fundamentally destroys the condition of membrane module pollution；
It is that membrane module builds independent cross-current cutting system by the aeration unit that interlocks, low as possible based on the theory of flowing control
Energy consumption condition under, form efficient shear action in film surface, destroy the hydraulics that pollution is formed；In addition, this invention needle
To sludge reflux inefficiency in bioreactor, the traditional problem for causing biodegradable difficulty to be promoted, from the angle of flowing control
Degree sets out, and current system is improved by strength sludge stirring device；It is imitated for integral type membrane bioreactor in terms of these three
The promotion of rate, the decline of UF membrane operation energy consumption and membrane module are that life-time dilatation provides completely new thinking.
Preferably, strength sludge stirring device further includes air pump, the gas outlet of air pump is connected with the stomata of agitation pipe, makes
Stomata keeps barotropic state.The setting of air pump and stomata so that air-flow is continuously emerged from agitation pipe outward, and stomata is kept
Barotropic state, the sludge in sludge settling slot are in the state for being stirred pipe and bubble disturbance, avoid the hardened blocking of sludge,
The microorganism dormancy avoided in sewage-treatment plant in activated sludge is dead.
Preferably, agitation pipe one end of strength sludge stirring device and central shaft are affixed, from fixing end to free end, stir
The radius of curvature of dynamic pipe gradually increases.It stirs pipe radius of curvature component to increase, agitation pipe is enclosed with center axis rotation one to sludge
Disturbance can preferably prevent sludge solid hardened, holding meanss are in efficient operation compared with linear type agitating device bigger.It stirs
Dynamic pipe radical is one and arrives number with installing in the shape of a spiral so that the sludge in sludge settling slot is in slow wriggling state, i.e.,
The secondary rising for not forming sludge has the hydraulics for destroying sludge quiescent setting enough, it is ensured that sludge can be uniformly from dirt
The problem of mud return duct efficiently flows out, and avoids the short stream of the sludge of traditional approach, and sludge can not flow back.
It is managed preferably, strength sludge stirring device includes at least two layers agitation, every layer of agitation pipe is each perpendicular to central shaft.
Include at least two layers of sludge stirring pipe on the central shaft of strength sludge stirring device, every layer of sludge stirring pipe includes at least again
3 with the agitation pipe perpendicular to central shaft in symmetry arrangement, ensures that sludge is in slow wriggling state, neither forms the two of sludge
Secondary rising, and break the hydraulics of sludge quiescent settling enough.
Preferably, sewage sedimentation groove sidewall is equipped with vibrating reed.The setting of vibrating reed avoids sludge hardened solid, avoids
Sewage is short to flow and ensures sludge reflux.
Preferably, the return duct of each group of sewage treatment unit is connected with return header, return duct and return header
Inner wall is equipped with vibrating reed.Sludge can be back to biological degradability panel, the setting of vibrating reed by return duct and return header
It avoids sludge hardened solid, avoid the short stream of sewage and ensures sludge reflux.
Preferably, filled with the filler for attached growth of microorganisms in biological degradability panel.The setting of filler limits
The flow direction of sewage plays the role of current limliting, and convenient microbe apposition growth to sewage.
Preferably, staggeredly aeration unit includes at least two interlaced aeration tubes.The shape on the surface of membrane module
At the mechanism efficiently sheared, the hydraulics of sludge settling are destroyed again, further ensure that membrane module separation local environment is good,
Promote the Effec-tive Function of entire reaction unit.
Preferably, inclined plate reaction member includes inclined plate, inclined plate is equipped with water (flow) direction in the oblique of 20 ° of -50 ° of inclinations angle
Board slot, inclined plate slot at least two.Inclined plate has double action, one is the effect of sloping plate deposition, it is secondary by sludge from water
It is come out using inertia and Gravity Separation, in addition inclined plate the selection of material is available is conducive to the molding material of biomembrane, in inclined plate slot,
It is formed to the biodegradable again of sewage, reduces the probability that colloid pollutant enters UF membrane section to the greatest extent.
Preferably, the ratio between the radial direction of first shell and axial length are 1:(1.2~3).First shell axial length compared with
It is long, it can be set as deep-well reaction or other reaction types according to sewage type, there is good adaptability.
Preferably, the ratio between sludge settling slot height and top diameter are 1:(1.8~2.6).Sludge settling slot has certain
Gradient, facilitate sludge to flow to return duct.
The present invention has significant technique effect as a result of above technical scheme：The present invention passes through first shell first
The mode of the flowing of body and hydraulic barrier control muddy water, decouples by mud-water separation twice, by membrane module from traditional sludge ring
It frees in border, fundamentally destroys the condition of membrane module pollution；Based on the theory of flowing control, pass through the aeration unit that interlocks
Independent cross-current cutting system is built for membrane module, under energy consumption condition low as possible, efficiently shearing is formed in film surface and makees
With the hydraulics that destruction pollution is formed；In addition, this invention causes for sludge reflux inefficiency in bioreactor
The traditional problem that biodegradable difficulty is promoted improves stream from the angle of flowing control by strength sludge stirring device
Kinety system；It is the promotion of integral type membrane bioreactor efficiency, the decline of UF membrane operation energy consumption and film in terms of these three
Component is that life-time dilatation provides completely new thinking.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of the strength sludge stirring device of Fig. 1.
The toponym that each number designation is referred in attached drawing is as follows：1-first shell, 2-aerated conduits, 3-sludge
Subsider, 4-water distributors, 5-strength sludge stirring devices, 6-biological degradability panels, 7-outlet pipes, 8-hydraulic barriers,
9-return ducts, 10-return headers, 11-membrane modules, 12-sludge baffles, 13-second shells, 14-water inlets, 15-are handed over
Wrong aeration unit, 16-inclined plate reaction members, 17-vibrating reeds, 51-central shafts, 52- agitations pipe, 53- stomatas, 151-aerations
Pipe, 161- inclined plates, 162- inclined plate slots.
Specific implementation mode
Present invention is further described in detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Membrane bioreactor, including at least two groups sewage treatment unit and one group of film process unit, every group of sewage disposal list
Member includes first shell 1, and 1 top left side of first shell is equipped with water distributor 4, and the right side at 1 top of first shell is equipped with outlet pipe
7, the water distributor 4 of right side sewage treatment unit is connected with the outlet pipe 7 of left side sewage treatment unit, and edge is equipped in first shell 1
The axial hydraulic barrier 8 of first shell 1,8 both sides of hydraulic barrier in first shell 1 are equipped with biological degradability panel 6, the
One shell, 1 bottom is equipped with aerated conduit 2, and film process unit includes second shell 13 and the membrane module in second shell 13
11, the top left side of second shell 13 is equipped with water inlet 14, and water inlet 14 and the outlet pipe 7 of rightmost side sewage treatment unit connect
It is logical, it is equipped in second shell 13 along the axial sludge baffle 12 of second shell 13, water inlet 14 is located at sludge baffle 12
The right side in left side, sludge baffle 12 is equipped with membrane module 11, and the lower section of membrane module 11 is from top to bottom equipped with staggeredly aeration unit successively
15 and inclined plate reaction member 16, film process unit bottom and sewage treatment unit bottom be connected with sludge settling slot 3, sludge settling
Slot 3 is cone, and bottom radius is less than top radius, and 3 bottom of sludge settling slot is connected with return duct 9, is set in sludge settling slot 3
It includes central shaft 51 and agitation pipe 52 to have strength sludge stirring device 5, strength sludge stirring device 5, and agitation pipe 52 is equipped with gas
Hole 53.
Strength sludge stirring device 5 further includes air pump, and the gas outlet of air pump is connected with the stomata 53 of agitation pipe 52, makes stomata
53 keep barotropic state.
52 one end of agitation pipe of strength sludge stirring device 5 and central shaft 51 are affixed, from fixing end to free end, agitation pipe
52 radius of curvature gradually increases.
Strength sludge stirring device 5 includes at least two layers agitation pipe 52, and every layer of agitation pipe 52 is each perpendicular to central shaft 51.
3 side wall of sewage subsider is equipped with vibrating reed 17.
The return duct 9 of each group of sewage treatment unit is connected with return header 10,10 inner wall of return duct 9 and return header
It is equipped with vibrating reed 17.
Filled with the filler for attached growth of microorganisms in biological degradability panel 6.
Staggeredly aeration unit 15 includes three interlaced aeration tubes 151.
Inclined plate reaction member 16 includes inclined plate 161, and it is in the inclined plate slot at 30 ° of inclinations angle that inclined plate 161, which is equipped with water (flow) direction,
162。
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to impartial made by scope of the present invention patent
Variation and modification, should all belong to the covering scope of patent of the present invention.
Claims (9)
1. membrane bioreactor, it is characterised in that：Including at least two groups sewage treatment unit and one group of film process unit, every group dirty
Water treatment unit includes first shell (1), and first shell (1) top left side is equipped with water distributor (4), first shell (1) top
Right side be equipped with outlet pipe (7), the water distributor (4) of right side sewage treatment unit and the outlet pipe (7) of left side sewage treatment unit
It is connected, the hydraulic barrier (8) along first shell (1) axial direction is equipped in first shell (1), the baffling gear in first shell (1)
Plate (8) both sides are equipped with biological degradability panel (6), and first shell (1) bottom is equipped with aerated conduit (2), film process unit packet
Include second shell (13) and the membrane module (11) in the second shell (13), the top left side of second shell (13) be equipped with into
The mouth of a river (14), water inlet (14) are connected to the outlet pipe (7) of rightmost side sewage treatment unit, be equipped in second shell (13) along
The sludge baffle (12) of second shell (13) axial direction, water inlet (14) are located at the left side of sludge baffle (12), sludge baffle
(12) right side is equipped with membrane module (11), and the lower section of membrane module (11) is from top to bottom equipped with staggeredly aeration unit (15) and oblique successively
Plate reaction member (16), film process unit bottom and sewage treatment unit bottom are connected with sludge settling slot (3), sludge settling slot
(3) it is cone, for bottom radius less than top radius, sludge settling slot (3) bottom is connected with return duct (9), sludge settling slot
(3) strength sludge stirring device (5) is equipped in, strength sludge stirring device (5) includes central shaft (51) and agitation pipe (52), is stirred
Dynamic pipe (52) is equipped with stomata (53).
2. membrane bioreactor according to claim 1, it is characterised in that：Strength sludge stirring device (5) further includes gas
The gas outlet of pump, air pump is connected with the stomata (53) of agitation pipe (52), and stomata (53) is made to keep barotropic state.
3. membrane bioreactor according to claim 1, it is characterised in that：The agitation pipe of strength sludge stirring device (5)
(52) one end and central shaft (51) are affixed, and from fixing end to free end, the radius of curvature of agitation pipe (52) gradually increases.
4. membrane bioreactor according to claim 1, it is characterised in that：Strength sludge stirring device (5) includes at least
Two layers of agitation pipe (52), every layer of agitation pipe (52) are each perpendicular to central shaft (51).
5. membrane bioreactor according to claim 1, it is characterised in that：Sewage subsider (3) side wall is equipped with vibration
Piece (17).
6. membrane bioreactor according to claim 1, it is characterised in that：The return duct of each group of sewage treatment unit
(9) it is connected with return header (10), return duct (9) and return header (10) inner wall are equipped with vibrating reed (17).
7. membrane bioreactor according to claim 1, it is characterised in that：Filled with confession in biological degradability panel (6)
The filler of attached growth of microorganisms.
8. membrane bioreactor according to claim 1, it is characterised in that：Staggeredly aeration unit (15) includes at least two
Interlaced aeration tube (151).
9. membrane bioreactor according to claim 1, it is characterised in that：Inclined plate reaction member (16) includes inclined plate
(161), it is in the inclined plate slot (162) at 20 ° of -50 ° of inclinations angle that inclined plate (161), which is equipped with water (flow) direction, and inclined plate slot (162) is at least
Two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317103.XA CN105836878B (en) | 2016-05-12 | 2016-05-12 | Membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610317103.XA CN105836878B (en) | 2016-05-12 | 2016-05-12 | Membrane bioreactor |
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| CN105836878A CN105836878A (en) | 2016-08-10 |
| CN105836878B true CN105836878B (en) | 2018-11-02 |
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| CN201610317103.XA Active CN105836878B (en) | 2016-05-12 | 2016-05-12 | Membrane bioreactor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827230B (en) * | 2018-01-04 | 2023-09-15 | 韩淇 | Constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in low-temperature area |
| 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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| CN101215024A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Inclined plate separate film biological reactor |
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| WO2016044348A1 (en) * | 2014-09-15 | 2016-03-24 | Velocys Technologies, Ltd. | Methods of making purified water from the fischer-tropsch process |
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2016
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| CN201010579Y (en) * | 2007-02-13 | 2008-01-23 | 诺卫环境安全工程技术(天津)有限公司 | Polyphase combined film bioreactor |
| CN101215024A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Inclined plate separate film biological reactor |
| CN103304021A (en) * | 2012-03-15 | 2013-09-18 | 北京晓清环保工程有限公司 | Panel ceramic ultrafiltration membrane bioreactor |
| CN103387316A (en) * | 2013-08-06 | 2013-11-13 | 常州友达环保科技有限公司 | Hybrid two-stage membrane bio-reactor (MBR) |
| CN203486968U (en) * | 2013-10-11 | 2014-03-19 | 中国水电顾问集团中南勘测设计研究院 | Sewage treatment reaction pool |
| CN204097185U (en) * | 2014-07-11 | 2015-01-14 | 福建华东水务有限公司 | The sludge refluxing apparatus of anaerobic hydrolysis reaction zone |
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