CN203112587U - Water treatment device of rotary flat membrane bioreactor - Google Patents
Water treatment device of rotary flat membrane bioreactor Download PDFInfo
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- CN203112587U CN203112587U CN201320145170XU CN201320145170U CN203112587U CN 203112587 U CN203112587 U CN 203112587U CN 201320145170X U CN201320145170X U CN 201320145170XU CN 201320145170 U CN201320145170 U CN 201320145170U CN 203112587 U CN203112587 U CN 203112587U
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Abstract
The utility model discloses a water treatment device of a rotary flat membrane bioreactor. The water treatment device comprises a fixed framework, a membrane assembly which is arranged inside the fixed framework and a drive device for driving the membrane assembly to rotate, wherein the membrane assembly comprises a plurality of flat membrane units, the flat membrane units are arranged in parallel, and a connecting shaft sequentially penetrates through collection rings of the flat membrane units; and the flat membrane units rotate by adopting the connection shaft as the axis, and filter liquid of each flat membrane unit flows into an inner cavity of the connecting shaft to be collected. Due to the adoption of the water treatment device, the volume ratio of the flat MBR (membrane bioreactor) can be greatly increased, an active sludge system can be uniformly stirred by utilizing the rotation of a membrane, the rotation speed is controlled, the eddy-current hydraulic shearing force is formed on the surface of the membrane, the pollution resistance is enhanced, the aeration on the surface of the membrane can be avoided, the energy consumption is low, the water treatment device is applicable to the high-load anaerobic sewage treatment process, the water quality can be improved, and the water treatment device is particularly suitable for treating the recycled water recycling engineering or the high-concentration waste water (sludge mixed liquid).
Description
Technical field
The utility model relates to a kind of sewage disposal device, particularly a kind of rotary ultra-thin plate membrane bioreactor water treating equipment.
Background technology
Rotary ultra-thin plate membrane bioreactor (Rotation Membrane bioreactor, RMBR) be with bio-reactor and dull and stereotyped membrane separation technique combination, utilize the diaphragm rotation to rotate and in the active sludge system, play even stirring, form hydraulic shear and prevent that mud is in the deposition on film surface on the film surface, prevent that film from polluting, improve the film life cycle, reduce cleaning frequency.Compare with classic flat-plate MBR membrane module, RMBR relies on to rotate and produces hydraulic shear, does not need the film surface aeration, and economy greatly improves, and has considerable development prospect.
At present, the solid-liquid separation membrane bioreactor is used the most extensively in water treatment field, according to the array mode of membrane module and bio-reactor, is divided into 2 kinds of separated type and integral types again.The MBR of integral type does not need recycle pump, and the operating pressure of suction pump is little, and its energy consumption is lower than separated type MBR, is widely used.Form according to membrane module can be divided into: flat, tubular type, tubular fibre formula, spiral, capillary type etc.In integral type MBR, adopt hollow-fibre membrane and flat sheet membrane more.Hollow-fibre membrane MBR major advantage shows as that to load density big, can back flushing; But the solid in the waste water and impurity produce the film silk easily and pollute and obstruction, and it all is the shortcoming that hollow fiber film assembly is difficult to overcome that there are the aeration dead band in the fracture of film silk and assembly.Than hollow-fibre membrane, plate type membrane component has long, advantage such as working cost is low, replacing is simple and antifouling property is strong of cleaning interval.In actual applications, still to exist some problem to have to be solved for dull and stereotyped MBR.Because the difference of form membrane, classic flat-plate diaphragm are two diaphragms to stick on the framework and constitutes, between the diaphragm for supporting masterplate, the diversion trench design is arranged on the masterplate.Every cover membrane element is made up of flat sheet membrane, filter, back up pad and framework, forms complicated.(5～7mm), this also is the major cause that causes the plate film assembly plot ratio lower, and the unit volume rate only is 100～150m greatly to support water conservancy diversion masterplate thickness
2/ m
3, occupation area of equipment is big; And back up pad weight is big, also brings difficulty for installing.Aspect film pollution control, can be by changing patching, the both sides face inclination certain angle of flat sheet membrane is proposed as Chinese patent CN101293701, forming section is trapezoidal plate film assembly, promote bubble and tilt flat plate that repeatedly collision takes place, bubble and wake flow vortex produce bigger instantaneous shearing force at face, improve the aeration flush efficiency; Change the character of mud mixed liquid, in reactor, drop into zeolite as Chinese patent CN1724410, rely on the synergy of zeolite powder and mud, alleviate the pollution on flat sheet membrane surface; The enhanced aeration form, produce the pulsed air pocket as Chinese patent CN101767866A by aeration control device, the intermittent type air pocket is at the inner piston flow that produces of membrane module, piston flow can improve film surface shear power and mass transfer coefficient, thereby better the film surface is carried out better souring and improved membrane flux.
Above-mentioned utility model has been alleviated membrane pollution problem to a certain extent, but still exist defectives such as aeration energy consumption, operation control, and be controlled by aeration and wash away film pollution control device, be unsuitable for high-concentration sewage (as high concentrated organic wastewater, sludge digestion liquid etc.) anaerobic treatment process, use and be subjected to limitation.
The utility model content
The purpose of this utility model is to provide a kind of rotary plate membrane bioreactor water treating equipment, to solve the problem of background technology.
The technical solution of the utility model is as follows:
A kind of rotary plate membrane bioreactor water treating equipment is characterized in that, comprising:
One fixed frame;
One is located at the membrane module in the fixed frame, and described film unit comprises a plurality of flat sheet membrane unit, and described a plurality of flat sheet membrane unit is arranged in parallel, and a coupling shaft passes the collecting ring of each flat sheet membrane unit successively; This plural number flat sheet membrane unit is the axle center rotation with this coupling shaft, and the filtrate of each flat sheet membrane unit flows into this coupling shaft inner chamber collection by collecting ring; And
The drive unit of one drive membrane assembly rotation.
In preferred embodiment of the present utility model, each described flat sheet membrane unit comprises 5 layers of structure, the intermediate flow channel in the middle of being positioned at, two filtration membranes that lay respectively at two supporting layers of intermediate flow channel both sides and lay respectively at two supporting layer outer sides; Flat sheet membrane unit middle portion is provided with the filtrate collection ring.
In preferred embodiment of the present utility model, described film unit is circle or rectangle or Polygons.
In preferred embodiment of the present utility model, interval 7～10mm between the film unit.
In preferred embodiment of the present utility model, described drive unit comprises a motor, and the output shaft of motor is fixedlyed connected with transmission shaft, and the other end of transmission shaft is fixedlyed connected with the coupling shaft of film unit.
In preferred embodiment of the present utility model, fixed frame comprises a body, is installed on the cover plate and the base plate that is installed on the body bottom of bodies top; Wherein, on body, also be provided with water-in and water outlet.
In preferred embodiment of the present utility model, sealing is fixed and realized to coupling shaft by the base plate of a tightness system and fixed frame.
In preferred embodiment of the present utility model, also comprise the film washing unit.
In preferred embodiment of the present utility model, described film washing unit is a wash tube, and this wash tube and coupling shaft are communicated with.
For plot ratio and the antifouling property that improves present dull and stereotyped MBR, the utility model changes traditional plate and frame flat sheet membrane design, selects different supporting layer materials, and diaphragm and supporting layer have constituted the form of film bag, reduce the thickness of monolithic membrane, increase the tamped density of MBR; The design of adopting the diaphragm rotation to rotate, make diaphragm in the active sludge system, play even stirring, form hydraulic shear and prevent that mud is in the deposition on film surface on the film surface, reduce cleaning frequency, prevent that film from polluting, handle the sewage treatment process that high loading organic waste water or sludge digestion liquid etc. need anaerobic environment to be applicable to.
At first, the preparation NEW TYPE OF COMPOSITE is filtered lamina membranacea, change traditional plate and frame flat sheet membrane design, select different supporting layer materials, diaphragm and supporting layer have constituted the form of film bag, the structure that mainly is of five storeys is formed, comprise intermediate flow channel, supporting layer, be positioned at the diaphragm of these supporting layer two sides, it is the tailormadepiston runner grid of 1～1.5mm that intermediate flow channel adopts thickness, supporting layer is the hydrophilic nonwoven fabrics supporting layer, diaphragm, runner grid and supporting layer bonding surround the dialyzate runner, and whole lamina membranacea thickness is less than 3mm, and each layer adopts the hot melt adhesive mode to bond, reduce the thickness of monolithic diaphragm, be reduced to 2～3mm by traditional 7mm, tamped density increases 40% than classic flat-plate MBR product, reaches 200～300m
2/ m
3The dialyzate of traditional flat sheet membrane MBR is collected pipeline all in a side of diaphragm, easily like this causes the bigger pressure-losses, and local the obstruction taken place easily for pressure branch inequality and diaphragm.The filtrate collection place design of the film of this programme is in the middle part of diaphragm, collect pipeline and can play the central shaft effect that connects diaphragm, place the dialyzate collection pipeline of middle part the loss of swabbing pressure can be dropped to minimum, can also guarantee the average branch of pressure on the film surface, prevent the local severe contamination that takes place.The design of novel flat-plate membrane module makes its membrane flux that has kept the classic flat-plate membrane module that advantages such as film silk fracture greatly, can not take place, and has improved filling density greatly.
Secondly, at the diaphragm middle part dialyzate is set and collects mouth, diaphragm is connected with gap 7～10mm, connect the driving motor device at dialyzate collection tube way outlet place, collect pipeline not only as the dialyzate outlet but also as rotation axis.Driving motor is installed in device top or sidepiece, comprises motor and transmission train of reduction gears that can degree of turning, and the driven by motor driving toothed gear is transmitted in two above follower gears rotations, and each follower gear is installed on the transmission shaft.Transmission shaft is tubular shaft, simultaneously also for collecting pipeline.Single or multiple membrane modules are installed in device interior, formed by the diaphragm of collecting pipeline and be fixed on the central shaft, one section of central shaft is fixed on the cylinder bottom by sealed structure, the other end is connected rotation with transmission shaft, utilize the diaphragm rotation to rotate and play even stirring in the active sludge system, the control velocity of rotation, form the eddy current hydraulic shear and prevent that mud is in the deposition on film surface on the film surface, prevent that film from polluting, improve the film life cycle, reduce cleaning frequency.
The utility model adopts rotary ultra-thin plate film assembly, the plot ratio of dull and stereotyped MBR significantly promotes, the anti-pollution ability is strengthened, do not need to carry out the film surface aeration, energy consumption is low, be fit to the high-load anaerobic sewage treatment process, improve effluent quality, centering water reuse project or high-concentration waste water (mud mixed liquid) etc. are handled particularly suitable.
Description of drawings
Fig. 1 is a kind of rotary ultra-thin plate membrane bioreactor water treating equipment structural representation of the present utility model;
Fig. 2 is the rotation membrane module diagram of gears of the present utility model;
Fig. 3 is rotation film membrane module synoptic diagram of the present utility model;
Fig. 4 is the perspective view of combined filtration lamina membranacea of the present utility model;
Fig. 5 is the utility model combined filtration lamina membranacea cross-sectional view;
Fig. 6 is that rotation film NEW TYPE OF COMPOSITE of the present utility model is filtered lamina membranacea intermediate flow channel synoptic diagram.
Embodiment
As shown in Figure 1 to Figure 3, a kind of rotary ultra-thin plate membrane bioreactor water treating equipment, it comprises: drive unit 1, transmission shaft 2, tightness system 3, fixed frame 4, combined filtration lamina membranacea 5, coupling shaft 6 and dialyzate outlet pipe 7 are formed.
Fixed frame 4 comprises a body 41, be installed on body 41 tops cover plate 42, be installed on the base plate 43 of body 41 bottoms etc.Wherein, be provided with water-in 44 on the top, side of body, the bottom is provided with water outlet 45.The below of body 41 also is provided with bottom bracket 46.
Being connected realization between transmission shaft 2 cover plate 42 by a tightness system 3 and framework 4 seals.Tightness system 3 is made up of static seal, dynamic seal, screw, O type rubber seal etc., and tightness system 3 is realized being connected with transmission shaft 2, coupling shaft 6 by screw.
Referring to Fig. 4 to Fig. 6, combined filtration lamina membranacea 5 is circular, and its structure that from top to bottom mainly is of five storeys is formed, and comprises intermediate flow channel 53, two supporting layers 52, is positioned at two filtration membranes 51 of these supporting layer two sides.It is the tailormadepiston runner grid of 1～1.5mm that intermediate flow channel 53 adopts thickness, supporting layer is the hydrophilic nonwoven fabrics supporting layer, diaphragm 51, intermediate flow channel 53 surround the dialyzate runner with supporting layer 52 bondings, whole lamina membranacea thickness is less than 3mm, each layer adopts the hot melt adhesive mode to bond, so lamina membranacea bulk strength height, and can support online back flushing, dialyzate flows in the collection tube by lamina membranacea intermediate collection mouth;
The collection of dialyzate for convenience, combined filtration lamina membranacea 5 arrange collection hole at circle centre position, and at collection hole dialyzate collecting ring 54 are set.This collecting ring 54 is two and is enclosed within the two ends at collection hole place respectively when the disk of split shed, the opening of disk and collection hole alignment.
Plastic grid is made up of many warp-wise parting beads and many broadwise parting beads parallel to each other parallel to each other, and the warp-wise parting bead is overlapped on the broadwise parting bead.That is to say, sidewall or the first half of each grid that each warp-wise parting bead and each broadwise parting bead surround are penetrating, or half is penetrating down, communicates between each grid, therefore, the common described dialyzate runner (intermediate flow channel) that forms of each grid.Warp-wise parting bead described here and broadwise parting bead only represent that the two crosses one another, and do not limit its trend, and not necessarily vertical mutually between the two, each lattice shape can be square, rectangle or rhombus.
After impurity screening passes through between lamina membranacea and the lamina membranacea with certain flow velocity, owing to inside and outside the lamina membranacea certain differential pressure action is arranged, the impurity that needs to filter screens under the effect of diaphragm 51, macromolecular substance is trapped, small-molecule substance sees through diaphragm 51 and supporting layer non-woven fabrics 52, becomes dialyzate and enters in the runner in the runner grid 53, and diaphragm 51 is high-molecular porous material, select the effect difference of different filtration of material, dialyzate is collected by collecting ring 54 through the runner in the runner grid 53.Flow to again in the coupling shaft 6.
When discharge pressure table negative pressure at 30～40kpa, close the water outlet suction pump, carry out film and clean.The film washing unit comprises a wash tube 8, and it is located at the right side top of cover plate, and and the upper end of coupling shaft 6 communicate.
Above-mentioned only is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (9)
1. rotary plate membrane bioreactor water treating equipment is characterized in that, comprising:
One fixed frame;
One is located at the membrane module in the fixed frame, and described film unit comprises a plurality of flat sheet membrane unit, and described a plurality of flat sheet membrane unit is arranged in parallel, and a coupling shaft passes the collecting ring of each flat sheet membrane unit successively; This plural number flat sheet membrane unit is the axle center rotation with this coupling shaft, and the filtrate of each flat sheet membrane unit flows into this coupling shaft inner chamber collection by collecting ring; And
The drive unit of one drive membrane assembly rotation.
2. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1, it is characterized in that, each described flat sheet membrane unit comprises 5 layers of structure, the intermediate flow channel in the middle of being positioned at, two filtration membranes that lay respectively at two supporting layers of intermediate flow channel both sides and lay respectively at two supporting layer outer sides; Flat sheet membrane unit middle portion is provided with the filtrate collection ring.
3. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1 is characterized in that, described film unit is circle or rectangle or Polygons.
4. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1 is characterized in that, interval 7～10mm between the film unit.
5. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1, it is characterized in that, described drive unit comprises a motor, and the output shaft of motor is fixedlyed connected with transmission shaft, and the other end of transmission shaft is fixedlyed connected with the coupling shaft of film unit.
6. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1 is characterized in that fixed frame comprises a body, are installed on the cover plate and the base plate that is installed on the body bottom of bodies top; Wherein, on body, also be provided with water-in and water outlet.
7. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1 is characterized in that, sealing is fixed and realized to coupling shaft by the base plate of a tightness system and fixed frame.
8. a kind of rotary plate membrane bioreactor water treating equipment as claimed in claim 1 is characterized in that, also comprise the film washing unit.
9. the equipment of a kind of composite dynamic film bioreactor sewage water processing according to claim 8 is characterized in that described film washing unit is a wash tube, and this wash tube and coupling shaft are communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145170XU CN203112587U (en) | 2013-03-27 | 2013-03-27 | Water treatment device of rotary flat membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145170XU CN203112587U (en) | 2013-03-27 | 2013-03-27 | Water treatment device of rotary flat membrane bioreactor |
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| Publication Number | Publication Date |
|---|---|
| CN203112587U true CN203112587U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320145170XU Expired - Lifetime CN203112587U (en) | 2013-03-27 | 2013-03-27 | Water treatment device of rotary flat membrane bioreactor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236569A (en) * | 2015-11-11 | 2016-01-13 | 天津工业大学 | Integrated anaerobic rotating pipe type membrane bioreactor and running method thereof |
| CN107376652A (en) * | 2017-08-09 | 2017-11-24 | 同济大学 | A kind of grade scissoring vibration film device for being stably controlled fouling membrane |
| CN109173419A (en) * | 2018-08-30 | 2019-01-11 | 苏州东大仁智能科技有限公司 | A kind of dynamic membrane filtering device |
| CN111214956A (en) * | 2020-01-15 | 2020-06-02 | 山东润德生物科技有限公司 | Rotary membrane solid-liquid separation equipment |
| CN113860500A (en) * | 2021-10-22 | 2021-12-31 | 浙江省现代建筑设计研究院有限公司 | Hospital sewage treatment system based on MBR |
| CN115745151A (en) * | 2022-12-06 | 2023-03-07 | 福瑞莱环保科技（深圳）股份有限公司 | Solid-liquid separation process based on dynamic biological filter membrane |
-
2013
- 2013-03-27 CN CN201320145170XU patent/CN203112587U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236569A (en) * | 2015-11-11 | 2016-01-13 | 天津工业大学 | Integrated anaerobic rotating pipe type membrane bioreactor and running method thereof |
| CN107376652A (en) * | 2017-08-09 | 2017-11-24 | 同济大学 | A kind of grade scissoring vibration film device for being stably controlled fouling membrane |
| CN107376652B (en) * | 2017-08-09 | 2020-06-26 | 同济大学 | Equal-shearing vibration film device capable of stably controlling film pollution |
| CN109173419A (en) * | 2018-08-30 | 2019-01-11 | 苏州东大仁智能科技有限公司 | A kind of dynamic membrane filtering device |
| CN111214956A (en) * | 2020-01-15 | 2020-06-02 | 山东润德生物科技有限公司 | Rotary membrane solid-liquid separation equipment |
| CN111214956B (en) * | 2020-01-15 | 2021-10-08 | 山东润德生物科技有限公司 | Rotary membrane solid-liquid separation equipment |
| CN113860500A (en) * | 2021-10-22 | 2021-12-31 | 浙江省现代建筑设计研究院有限公司 | Hospital sewage treatment system based on MBR |
| CN113860500B (en) * | 2021-10-22 | 2023-03-10 | 浙江省现代建筑设计研究院有限公司 | Hospital sewage treatment system based on MBR |
| CN115745151A (en) * | 2022-12-06 | 2023-03-07 | 福瑞莱环保科技（深圳）股份有限公司 | Solid-liquid separation process based on dynamic biological filter membrane |
| CN115745151B (en) * | 2022-12-06 | 2024-03-26 | 福瑞莱环保科技（深圳）股份有限公司 | Solid-liquid separation process based on dynamic biological filter membrane |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130807 |