CN1814557A - Plate type membrane assembly - Google Patents
Plate type membrane assembly Download PDFInfo
- Publication number
- CN1814557A CN1814557A CNA2005100049714A CN200510004971A CN1814557A CN 1814557 A CN1814557 A CN 1814557A CN A2005100049714 A CNA2005100049714 A CN A2005100049714A CN 200510004971 A CN200510004971 A CN 200510004971A CN 1814557 A CN1814557 A CN 1814557A
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- CN
- China
- Prior art keywords
- membrane module
- frame
- film
- cleaning brush
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a new type flat film component that is made up of sheet frame film component, and sheet frame mechanism cleaning brush. The sheet frame film is made up of pressing film, raw net supporting material, supporting board, raw new supporting material, film. And the mechanism cleaning brush is made up of brushing and brush frame. The feature is that it enhances the mechanism cleaning brush to realize the removal of the main pollution of flat film and keeps the advantage of traditional flat film component. The component installs mechanism cleaning brush in the interval clearance between the traditional flat film component to realize online washing, and enhances the yield and useful life of the film component.
Description
Technical field
The invention belongs to membrane separation technique research and development and applied technical field, particularly a kind of novel plate film assembly.
Background technology
Membrane bioreactor is the technology that membrane separation technique and biological sewage treatment technology are combined and dispose of sewage, compare with traditional biological sewage treatment technology, it has, and floor space is little, equipment is concentrated, modularization, and [the TomStephenson that day by day worldwide comes into one's own of the advantages such as potentiality with upgrading, Simon Judd, Bruce Jefferson, Keith Brindle, Membrane Bioreaators for wastewaterTreatment], be considered to have most one of the sewage disposal of prospect and reuse technology.But the problems such as flux decay that film costs an arm and a leg and the film pollution causes seriously hinder applying of membrane technique always.
Flat sheet membrane is a kind of design form of membrane module, a kind of membrane module that the plate and frame module formula is directly used flat sheet membrane in history the earliest (Xu Zhenliang. the embrane method water technology. Beijing, Chemical Industry Press, 2001).Utilize the assembly of flat sheet membrane generally all to have the assembling of manufacturing simply, unit membrane area output is big, easy to operate, the maintenance of film, matting and more changing than being easier to, but aspect film pollution control, because the gap between plate film assembly is less, and form the dead angle on the film surface easily, in order to prevent that the deposition of mud on the film surface from reducing to pollute, the mode that needs to adopt increasing flow velocity and improvement to flow to solves the controlling diaphragm pollution problems, complexity (the Jin Kie Shim that has caused energy consumption increase and assembly, Ik-Keun Yoo b, Young Moo Lee.Design and operation considerations forwastewater treatment using a flat submerged membrane bioreactor.Process Biochemistry 38 (2002) 279-/285).At present, flat sheet membrane is applied in the Sewage treatment systems, and the mode that the controlling diaphragm that each big film production firm provides pollutes all is that aeration washes away basically, increases the method for crossflow velocity.But in application in practice, it is inhomogeneous that the close installation between flat sheet membrane has caused aeration to wash away the assembly face is washed away, and causes the acceleration of membrane module to be polluted.
Summary of the invention
According to running into your sick pollution problems of face in the flat sheet membrane research and development at home and abroad, the invention provides a kind of new membrane module and can resolve this problem effectively.The assembling of this assembly mould blocking, easy to operate, stable, the complete automatic on-line of realization cleans.
Main sheet frame membrane module of novel combined films assembly that the present invention carried and plate and frame machinery cleaning brush are formed.Described sheet frame membrane module and traditional assembly do not have any difference, and it is to make together by the sequence alternate assembling of film, coarse net propping material, back up pad, coarse net propping material, film.And plate and frame machinery cleaning brush is made up of brush frame and bristle.The size of brush frame is identical with sheet frame membrane module size, and thickness is less than the spacing 0.5-5cm of membrane module, and the spacing between membrane module is generally 1～15cm; Bristle material is hydrophobic cord, nylon, cellulose family, material such as polyamide-based, and disconnected hair does not take place when shaking in current its requirement of strength.Its concrete assembling form is seen Figure of description.During work,, also make the shake that the bristle of cleaning brush does not stop simultaneously in runner because the work of the aerating system of assembly below makes that under the promotion of air-flow the mixed solution of runner is in flow state between membrane module.Because the diffusion of oxygen in mixed solution strengthened in the shake of bristle, the most important thing is because the shake of bristle has realized the automatic on-line cleaning that film pollutes.The shake that bristle does not stop in liquid stream constantly is washed into two relative faces of two adjacent membrane modules, and mud cake can not be generated on face, makes film be in high-throughput steady running for a long time.This membrane module key is that bristle washes away the control that film is polluted when having utilized aeration, has realized that the classic flat-plate membrane module aeration that also weakened simultaneously washes away inhomogeneous and the not smooth drawback of inlet conduit to the effect of the machinery cleaning of flat sheet membrane; And effectively raise the critical flux of plate film assembly, make the flux of homemade plate film assembly bring up to 25-40L/m
2.h.Effective raising of assembly operating flux and effective machinery control that film pollutes have been realized thus.
Embodiment
To contain COD is 200～500mg/L, BOD
5Be 100～300mg/L, ammonia nitrogen is 50～160mg/L, and SS is that the sanitary sewage of 20～50mg/L enters the active sludge Membrane Bioreactor for Wastewater Treatment, and system adopts novel flat membrane module of the present invention, is 0.4m in the air-blowing amount
3/ hr, 12～29 ℃ of temperature, pH is under 6.5～8.0 conditions, steady running 6 months.New membrane assembly middle plateform membrane flux is stabilized in 25-40L/m
2H, working pressure are 18～22kpa, and treatment effect is stable simultaneously.System's water outlet COD value changes between 10～30mg/L, generally is stabilized under the 20mg/L BOD
5Value fluctuates between 1～3mg/L, and ammonia nitrogen is stabilized in below the 10mg/L, and SS is stabilized in below the 0.3mg/L, and effluent quality reaches " urban sewage reutilization-city miscellaneous water water quality " (GB/T18920-2002) standard.
Description of drawings
The assembling sketch of the novel combined films assembly of Fig. 1 the present invention
Reference numeral
1, flat sheet membrane support, 2, the flat sheet membrane header, 3, flat sheet membrane, 4, the brush frame, 5, bristle
Claims (5)
1. main sheet frame membrane module of novel flat membrane module and plate and frame machinery cleaning brush is formed.It is characterized in that: this type assembly has made full use of the runner between two flat sheet membrane, realizes that when not influencing membrane module work the waterpower of film and machinery clean.
2, plate and frame machinery cleaning brush as claimed in claim 1, it is characterized in that: mainly be made up of brush frame and bristle, the material of bristle is hydrophobic cord, nylon, polyamide-based, cellulose material.The size of brush frame is identical with sheet frame membrane module size, and thickness is less than membrane module spacing 0.5-5cm.
3. plate and frame machinery cleaning brush as claimed in claim 1 is characterized in that: but the modes of emplacement bristle of cleaning brush is vertically placed or horizontal positioned.
4. novel flat membrane module as claimed in claim 1 is characterized in that: the time of assembly work also is the time of cleaning, and realizes that simultaneously the online machinery of assembly work and assembly cleans, and can keep the high-throughput work of assembly for a long time.
5, novel flat membrane module as claimed in claim 1, it is characterized in that: the spacing between membrane module is generally 1～15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100049714A CN1814557A (en) | 2005-01-31 | 2005-01-31 | Plate type membrane assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100049714A CN1814557A (en) | 2005-01-31 | 2005-01-31 | Plate type membrane assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1814557A true CN1814557A (en) | 2006-08-09 |
Family
ID=36906941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100049714A Pending CN1814557A (en) | 2005-01-31 | 2005-01-31 | Plate type membrane assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1814557A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811773A (en) * | 2010-04-16 | 2010-08-25 | 同济大学 | Online cleaning roll-type membrane bioreactor |
| CN101811771A (en) * | 2010-04-16 | 2010-08-25 | 同济大学 | Online cleaning folding rotary membrane bioreactor |
| CN106745704A (en) * | 2016-12-04 | 2017-05-31 | 江苏沛尔膜业股份有限公司 | A kind of plate film assembly Flat Membrane self-cleaning component |
| CN109364762A (en) * | 2018-12-24 | 2019-02-22 | 中科瑞阳膜技术（北京）有限公司 | Plate film assembly and membrane bioreactor |
-
2005
- 2005-01-31 CN CNA2005100049714A patent/CN1814557A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811773A (en) * | 2010-04-16 | 2010-08-25 | 同济大学 | Online cleaning roll-type membrane bioreactor |
| CN101811771A (en) * | 2010-04-16 | 2010-08-25 | 同济大学 | Online cleaning folding rotary membrane bioreactor |
| CN101811771B (en) * | 2010-04-16 | 2011-11-16 | 同济大学 | Online cleaning folding rotary membrane bioreactor |
| CN106745704A (en) * | 2016-12-04 | 2017-05-31 | 江苏沛尔膜业股份有限公司 | A kind of plate film assembly Flat Membrane self-cleaning component |
| CN109364762A (en) * | 2018-12-24 | 2019-02-22 | 中科瑞阳膜技术（北京）有限公司 | Plate film assembly and membrane bioreactor |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |