CN107328699A - Fouling membrane monitoring device and method based on In situ spectroscopic electrochemical analysis techniques - Google Patents
Fouling membrane monitoring device and method based on In situ spectroscopic electrochemical analysis techniques Download PDFInfo
- Publication number
- CN107328699A CN107328699A CN201710526047.5A CN201710526047A CN107328699A CN 107328699 A CN107328699 A CN 107328699A CN 201710526047 A CN201710526047 A CN 201710526047A CN 107328699 A CN107328699 A CN 107328699A
- Authority
- CN
- China
- Prior art keywords
- pond
- reference electrodes
- separation membrane
- agcl reference
- roof
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/086—Investigating permeability, pore-volume, or surface area of porous materials of films, membranes or pellicules
Abstract
The invention discloses a kind of fouling membrane monitoring device and method based on In situ spectroscopic electrochemical analysis techniques, the device includes the filtering ponds 1 with roof, Separation membrane 3, left pond is provided with water inlet 4, right pond is provided with delivery port 5, working electrode 7 of the one end with cyclic structure, which runs through, to be arranged on the roof in the middle of left pond, fibre-optical probe 8 runs through the left wall in left pond, through working electrode ring and right-hand member is arranged at nearly Separation membrane 3, sheet runs through on the roof being arranged in the middle of right pond to electrode 9, in the bottom-right location of the rear wall in left pond, it is provided through the first Ag/AgCl reference electrodes 10, in the lower left position of the rear wall in right pond, it is provided through the 2nd Ag/AgCl reference electrodes 11, the device of the present invention can monitor the different Separation membrane pollution conditions of analysis on-line, so as to formulate suitable cleaning program, and it is easy to operate, measuring speed is fast, it is easy to industrialization, accuracy of measurement is high, sensitivity is high, take up an area few, controllability is strong.
Description
Technical field
The present invention relates to a kind of fouling membrane monitoring device and method, more specifically, be related to it is a kind of based on In situ spectroscopic-
The fouling membrane monitoring device and method of electrochemical analysis techniques.
Background technology
Hyperfiltration technique has obtained development at full speed since being born from research and development, and milipore filter is in drinking water and waste water at present
The industries such as processing have obtained relatively broad application and have all achieved preferable effect.Compared with traditional water technology,
Milipore filter producing water water quality is good, especially improves the removal of turbidity and microorganism.And in field of waste water treatment, milipore filter is more
It is used for the processing of municipal wastewater, research shows, ultrafiltration membrane technique is almost completely removed general bacterium, virus and suspended solid
Body particulate matter, and have certain removal effect to polluters such as biochemical indicator BOD, COD, nitrogen phosphorus, it disclosure satisfy that substantially
The standard of recycle-water.
But in the application of milipore filter, fouling membrane is to influence its operating efficiency, hinders the key factor of Technique Popularizing.Film
Pollution refer in film during process operation, the material such as filtered fluid colloidal particle, dissolubility macromolecular and molecule due to
There is physics, chemistry, biochemical interaction or mechanism with film surface, and cause and adsorb, deposit in film surface or fenestra
Etc. phenomenon, cause membrane aperture to diminish or block, cause the phenomenon that film permeation flux declines and stalling characteristic is deteriorated.Fouling membrane phenomenon
Film producing water ratio can be caused to decline, the stable operation of film is influenceed, and the service life increase replacement frequency of film can be reduced and then made
Operating cost rises.
Since membrane separating process is born, the research that people are directed to fouling membrane method for monitoring and analyzing did not rested always.Mesh
Cephacoria pollution monitoring analysis method is divided into online and offline two kinds.Online means are come simply by transmembrane pressure, membrane flux is determined
Illustrate fouling membrane, but film surface pollution level can not be specified by the comparative analysis to these macro-datas and film is explained
Contamination mechanism.Offline means are usually using the microscopic sdIBM-2+2q.p.approach hand such as ESEM, infrared spectrum analysis, AFM
Section, but these characterizing methods need to carry out polluted membrane pre-treatment, careless manipulation can destroy film surface contamination layer, observe caudacoria
It can not reuse.And fouling membrane process can not be monitored on-line, it is impossible to observation fouling membrane behavior in real time.In summary,
New membrane on-line monitor for pollution and method are developed, the major issue of accurate application membrane technology at present is had become.
Fiber spectrometer is a branch of spectrometer, gathers the spectrum letter of different wave length simultaneously it makes use of array CCD
More stablize in breath, structure.Again because fiber spectrometer small volume, collection spectrum speed are fast, work is had been widely used at present
Industry field.Electrochemical AC impedance method is to realize electrification using characteristic of the electrochemistry equivalent circuit under simple alternating current electro ultrafiltration
The method for learning parameter measurement, is a kind of non-invasive measuring technique, there is very high sensitivity to various chemical and physical properties, can be to have
Numerous application studies such as organic coating, sensor, battery and its associated materials performance study provide valuable information.By by light
The optical information that optical fiber spectrograph is obtained is combined with the Electrochemistry Information that electrochemical workstation is obtained, and on the one hand can obtain film surface dirty
The information on the molecular level of thing is contaminated, deposition process information of the material on film surface on the other hand can be obtained, can be greatly rich
Rich analysis means and research method to changing on fouling membrane mechanism and membrane interface, in exploitation new membrane on-line monitor for pollution
And on the basis of method, theories integration is provided deeply to probe into fouling membrane mechanism.
The content of the invention
It is of the prior art not enough fast, clever there is provided a kind of easy to operate, measuring speed the invention aims to overcome
Sensitivity is high, can industry on-line monitoring Analyze ＆ separate fouling membrane, optimization Membrane cleaning strategy provide foundation based on In situ spectroscopic-electrification
Learn the fouling membrane monitoring device of analytical technology.
Second object of the present invention is to provide a kind of fouling membrane monitoring side based on In situ spectroscopic-electrochemical analysis techniques
Method.
Technical scheme is summarized as follows：
A kind of fouling membrane monitoring device based on In situ spectroscopic-electrochemical analysis techniques, including the filtering ponds with roof
1, Separation membrane 3 is provided with the middle part of filtering ponds, filtering ponds are divided into Zuo Chi and You Chi, it is the next in the antetheca in left pond
Put, be provided with water inlet 4, the lower position in the antetheca in right pond is provided with delivery port 5, work electricity of the one end with cyclic structure
The upper end of pole 7, which is run through, to be arranged on the roof in the middle of left pond, and makes cyclic structure positioned at the centre in left pond, and fibre-optical probe 8 runs through
The left wall in left pond, through working electrode ring and right-hand member is arranged at nearly Separation membrane 3, sheet runs through to the upper end of electrode 9
It is arranged on the roof in the middle of right pond, and laminated structure is located at the middle part in right pond, one end carries the working electrode of cyclic structure
Electrode is symmetrical arranged centered on Separation membrane with sheet, in the bottom-right location of the rear wall in left pond, the first Ag/ is provided through
AgCl reference electrodes 10, in the lower left position of the rear wall in right pond, are provided through the 2nd Ag/AgCl reference electrodes 11, the first Ag/
The Ag/AgCl reference electrodes 11 of AgCl reference electrodes 10 and the 2nd are symmetrical arranged centered on Separation membrane；Water inlet is passed through even
The pipeline 17 for being connected to pump 12 is connected with water tank 2, and working electrode 7 of the one end with cyclic structure, sheet are to electrode 9, the first Ag/
The Ag/AgCl reference electrodes 11 of AgCl reference electrodes 10 and the 2nd are connected by wire with electrochemical workstation 14 respectively, and optical fiber is visited
First 8 are connected with light source 13 and spectrometer 15 respectively by wire, and spectrometer 15 is connected by wire with computer 16；Electrochemistry work
Make station 14 to be connected with computer 16 by wire.
A kind of fouling membrane monitoring method based on In situ spectroscopic-electrochemical analysis techniques, comprises the following steps：
1) a kind of above-mentioned fouling membrane monitoring device based on In situ spectroscopic-electrochemical analysis techniques is used；
2) start pump, the water to be filtered in water tank is passed through in the left pond of filtering ponds, open light source, spectrometer, calculating
Machine and electrochemical workstation, pass through computer monitoring Separation membrane surface contamination material adsorption and sedimentation situation；Supervised by computer
Survey filtration system impedance variations.
Advantages of the present invention：
(1) using the device of the present invention, Analyze ＆ separate diaphragm pollution condition can be monitored on-line simultaneously, so as to formulate suitable
Cleaning program, and easy to operate, measuring speed is fast, it is easy to industrialize.
(2) device of the invention is monitored to the change of Separation membrane polluter.Filtration system impedance is monitored simultaneously to become
Change.With the features such as accuracy of measurement is high, sensitivity is high.
(3) fibre-optical probe in apparatus of the present invention to Separation membrane apart from freely adjustable, can be more quickly and accurately right
Separation membrane pollutant accumulation is monitored.
(4) method of the invention is simple and easy to apply, take up an area less, controllability it is strong.
Brief description of the drawings
Fig. 1 is a kind of fouling membrane monitoring device schematic diagram based on In situ spectroscopic-electrochemical analysis techniques of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
A kind of fouling membrane monitoring device (see Fig. 1) based on In situ spectroscopic-electrochemical analysis techniques, including with roof
Filtering ponds 1, Separation membrane 3 is provided with the middle part of filtering ponds, filtering ponds are divided into Zuo Chi and You Chi, in the antetheca in left pond
Lower position, is provided with water inlet 4, the lower position in the antetheca in right pond, is provided with delivery port 5, one end carries the work of cyclic structure
Make the upper end of electrode 7 through being arranged on the roof in the middle of left pond, and cyclic structure is located at the centre in left pond, fibre-optical probe 8
Left wall through left pond, through working electrode ring and right-hand member is arranged at nearly Separation membrane 3, upper end of the sheet to electrode 9
On the roof being arranged in the middle of right pond, and laminated structure is set to be located at the middle part in right pond, one end carries the work of cyclic structure
Electrode and sheet are symmetrical arranged to electrode centered on Separation membrane, in the bottom-right location of the rear wall in left pond, are provided through
One Ag/AgCl reference electrodes 10, in the lower left position of the rear wall in right pond, are provided through the 2nd Ag/AgCl reference electrodes 11, the
One Ag/AgCl reference electrodes 10 and the 2nd Ag/AgCl reference electrodes 11 are symmetrical arranged centered on Separation membrane；Water inlet is led to
Cross and be connected with the pipeline 17 of pump 12 and be connected with water tank 2, working electrode 7 of the one end with cyclic structure, sheet are to electrode 9, the
One Ag/AgCl reference electrodes 10 and the 2nd Ag/AgCl reference electrodes 11 are connected by wire with electrochemical workstation 14 respectively, light
Fibre probe 8 is connected with light source 13 and spectrometer 15 respectively by wire, and spectrometer 15 is connected by wire with computer 16；Electrification
Work station 14 is learned to be connected with computer 16 by wire.
Seperation film can select any material membrane material, for example, polyvinylidene fluoride film or poly (ether sulfone) film.
Embodiment 1
A kind of fouling membrane monitoring method based on In situ spectroscopic-electrochemical analysis techniques, comprises the following steps：
1) a kind of above-mentioned fouling membrane monitoring device based on In situ spectroscopic-electrochemical analysis techniques is used；
2) start pump, the water to be filtered in water tank is passed through in the left pond of filtering ponds, open light source, spectrometer, calculating
Machine and electrochemical workstation, pass through computer monitoring Separation membrane surface contamination material adsorption and sedimentation situation；Supervised by computer
Survey filtration system impedance variations.
Water to be filtered is filtered with the method for embodiment 1, the ultraviolet light absorption angle value measured when filtering 1 minute by spectrometer is
0.1, filter 10 minutes, ultraviolet light absorption angle value is 0.3, is filtered 20 minutes, ultraviolet light absorption angle value is 0.45, filter 23 0 minute is purple
Outer absorbance is 1.2, is filtered 60 minutes, and ultraviolet light absorption angle value is 1.8, and is kept relative stability, thus illustrate pollutant with
Filtering gradually accumulate on film surface, pollution layer is formed after one hour, and progressivelyes reach balance.Pass through electrochemical workstation
Impedance measurement obtains the reduction of capacitive reactance arc radius, shows that ion is accumulated on film surface, film surface forms pollution layer.
Claims (2)
1. a kind of fouling membrane monitoring device based on In situ spectroscopic-electrochemical analysis techniques, including the filtering ponds with roof
(1) Separation membrane (3), is provided with the middle part of filtering ponds, filtering ponds are divided into Zuo Chi and You Chi, in the antetheca in left pond under
Position, is provided with water inlet (4), and lower position, is provided with delivery port (5) in the antetheca in right pond, it is characterized in that, one end carries ring
The upper end of the working electrode (7) of shape structure, which is run through, to be arranged on the roof in the middle of left pond, and cyclic structure is located in left pond
Between, left wall of the fibre-optical probe (8) through left pond, the ring through working electrode simultaneously make right-hand member be arranged on nearly Separation membrane (3) place, piece
Shape runs through on the roof being arranged in the middle of right pond to the upper end of electrode (9), and makes laminated structure positioned at the middle part in right pond, one end band
The working electrode and sheet for having cyclic structure are symmetrical arranged to electrode centered on Separation membrane, in the bottom right position of the rear wall in left pond
Put, be provided through the first Ag/AgCl reference electrodes (10), in the lower left position of the rear wall in right pond, be provided through the 2nd Ag/
AgCl reference electrodes (11), the first Ag/AgCl reference electrodes (10) and the 2nd Ag/AgCl reference electrodes (11) using Separation membrane as
Central Symmetry is set；Water inlet is connected by being connected with the pipeline (17) of pump (12) with water tank (2), one end carries ring-type knot
The working electrode (7) of structure, sheet are to electrode (9), the first Ag/AgCl reference electrodes (10) and the 2nd Ag/AgCl reference electrodes
(11) be connected respectively by wire with electrochemical workstation (14), fibre-optical probe (8) by wire respectively with light source (13) and light
Spectrometer (15) is connected, and spectrometer (15) is connected by wire with computer (16)；Electrochemical workstation (14) passes through wire and meter
Calculation machine (16) is connected.
2. a kind of fouling membrane monitoring method based on In situ spectroscopic-electrochemical analysis techniques, it is characterized in that comprising the following steps：
1) a kind of fouling membrane monitoring device (6) based on In situ spectroscopic-electrochemical analysis techniques of usage right requirement 1；
2) start pump, the water to be filtered in water tank is passed through in the left pond of filtering ponds, open light source, spectrometer, computer and
Electrochemical workstation, passes through computer monitoring Separation membrane surface contamination material adsorption and sedimentation situation；Pass through computer monitoring mistake
The impedance variations of filter system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526047.5A CN107328699B (en) | 2017-06-30 | 2017-06-30 | Based on In situ spectroscopic-electrochemical analysis techniques fouling membrane monitoring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526047.5A CN107328699B (en) | 2017-06-30 | 2017-06-30 | Based on In situ spectroscopic-electrochemical analysis techniques fouling membrane monitoring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107328699A true CN107328699A (en) | 2017-11-07 |
| CN107328699B CN107328699B (en) | 2019-09-20 |
Family
ID=60198207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526047.5A Active CN107328699B (en) | 2017-06-30 | 2017-06-30 | Based on In situ spectroscopic-electrochemical analysis techniques fouling membrane monitoring device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107328699B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562635A (en) * | 2018-01-08 | 2018-09-21 | 天津工业大学 | A kind of fouling membrane in-situ monitoring device based on Zeta potential and Electrical Impedance Spectroscopy technology |
| CN110161106A (en) * | 2019-06-08 | 2019-08-23 | 天津工业大学 | Online electrochemistry-spectroscopy monitoring device in situ of ion exchange fouling membrane during a kind of electrodialysis desalination |
| CN110687173A (en) * | 2019-10-22 | 2020-01-14 | 天津城建大学 | Electrochemical method for in-situ monitoring of membrane surface pollution condition and monitoring device |
| CN113176236A (en) * | 2021-04-02 | 2021-07-27 | 深圳技术大学 | Large-scale visual membrane pollution in-situ online monitoring system suitable for membrane filtration |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564014A (en) * | 2004-03-26 | 2005-01-12 | 北京科技大学 | Testing method and appliance for horizontal conductivity of fuel cell proton exchange membrane |
| CN1869644A (en) * | 2006-06-16 | 2006-11-29 | 东南大学 | Field electrochemical contact angle investigating method based on micronano interface |
| CN101344505A (en) * | 2008-09-01 | 2009-01-14 | 天津工业大学 | On-line monitoring method and device for pollution of hollow fiber film |
| CN102407078A (en) * | 2011-10-13 | 2012-04-11 | 天津工业大学 | Hollow fiber membrane filter performance testing device |
| CN102939529A (en) * | 2010-06-15 | 2013-02-20 | 沙特阿拉伯石油公司 | Apparatus and method for replicating liquid blends and identifying the ratios of their liquid ingredients |
| CN104062450A (en) * | 2014-07-04 | 2014-09-24 | 天津工业大学 | Method for monitoring membrane module pollution in situ |
| CN105884011A (en) * | 2015-01-06 | 2016-08-24 | 天津工业大学 | Membrane electric biological treatment device and method for high-concentration organic wastewater hard to degrade |
-
2017
- 2017-06-30 CN CN201710526047.5A patent/CN107328699B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564014A (en) * | 2004-03-26 | 2005-01-12 | 北京科技大学 | Testing method and appliance for horizontal conductivity of fuel cell proton exchange membrane |
| CN1869644A (en) * | 2006-06-16 | 2006-11-29 | 东南大学 | Field electrochemical contact angle investigating method based on micronano interface |
| CN101344505A (en) * | 2008-09-01 | 2009-01-14 | 天津工业大学 | On-line monitoring method and device for pollution of hollow fiber film |
| CN102939529A (en) * | 2010-06-15 | 2013-02-20 | 沙特阿拉伯石油公司 | Apparatus and method for replicating liquid blends and identifying the ratios of their liquid ingredients |
| CN102407078A (en) * | 2011-10-13 | 2012-04-11 | 天津工业大学 | Hollow fiber membrane filter performance testing device |
| CN104062450A (en) * | 2014-07-04 | 2014-09-24 | 天津工业大学 | Method for monitoring membrane module pollution in situ |
| CN105884011A (en) * | 2015-01-06 | 2016-08-24 | 天津工业大学 | Membrane electric biological treatment device and method for high-concentration organic wastewater hard to degrade |
Non-Patent Citations (2)
| Title |
|---|
| S. CHANG ET AL.: "Experimental assessment of filtration of biomass with transverse and axial fibres", 《CHEMICAL ENGINEERING JOURNAL》 * |
| SEBASTIAN BANNWARTH ET AL.: "Characterization of hollow fiber membranes by impedance spectroscopy", 《JOURNAL OF MEMBRANE SCIENCE》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562635A (en) * | 2018-01-08 | 2018-09-21 | 天津工业大学 | A kind of fouling membrane in-situ monitoring device based on Zeta potential and Electrical Impedance Spectroscopy technology |
| CN110161106A (en) * | 2019-06-08 | 2019-08-23 | 天津工业大学 | Online electrochemistry-spectroscopy monitoring device in situ of ion exchange fouling membrane during a kind of electrodialysis desalination |
| CN110687173A (en) * | 2019-10-22 | 2020-01-14 | 天津城建大学 | Electrochemical method for in-situ monitoring of membrane surface pollution condition and monitoring device |
| CN113176236A (en) * | 2021-04-02 | 2021-07-27 | 深圳技术大学 | Large-scale visual membrane pollution in-situ online monitoring system suitable for membrane filtration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107328699B (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107328699B (en) | Based on In situ spectroscopic-electrochemical analysis techniques fouling membrane monitoring device and method | |
| US20180161730A1 (en) | Method and apparatus for assessing a state of fouling of a reverse osmosis system | |
| US20010003426A1 (en) | Method and device for oil-in-water measurement | |
| Wei et al. | Full utilization of silt density index (SDI) measurements for seawater pre-treatment | |
| CN201653752U (en) | Sampler for water quality online measurement | |
| WO2012118539A3 (en) | Automated particulate concentration system | |
| US11892393B2 (en) | Detection system and method for determining contaminant concentration in feed water stream | |
| JP2016107235A (en) | Analysis method for contaminated condition of separation membrane, evaluation method for water quality of filtration object water using the same, and filtration system for performing analysis method for contaminated condition of separation membrane | |
| JP4591703B2 (en) | Liquid processing method and apparatus | |
| CN107064236A (en) | A kind of on-line checking electrodialysis plant intermediate ion exchanges the device and method of fouling membrane | |
| Jia et al. | On line monitoring local fouling behavior of membrane filtration process by in situ hydrodynamic and electrical measurements | |
| CN104888611A (en) | Integrity detecting device for hollow fiber membrane component | |
| CN108562635A (en) | A kind of fouling membrane in-situ monitoring device based on Zeta potential and Electrical Impedance Spectroscopy technology | |
| JP2012071256A (en) | Minute object collector, amount measuring device of minute objects, minute object collection method, and amount measuring method of minute objects | |
| CN110161106A (en) | Online electrochemistry-spectroscopy monitoring device in situ of ion exchange fouling membrane during a kind of electrodialysis desalination | |
| CN211627444U (en) | In-situ online electrochemical spectroscopy monitoring device for ion exchange membrane pollution | |
| CN104155276B (en) | A kind of drinking water excessive risk pollutant monitoring early warning system and using method thereof | |
| CN206270326U (en) | Automatic water quality monitoring system | |
| CN104360014B (en) | Mimic water-depth changes the device to sediment nitrogen phosphorus and heavy metal release venture influence | |
| CN104049013B (en) | Water quality detection electrode capable of automatically exchanging membrane | |
| CN206258410U (en) | A kind of on-line checking electrodialysis plant intermediate ion exchanges the device of fouling membrane | |
| US20180319681A1 (en) | Contactless Ion Concentration Method & Apparatus Using Nanoporous Membrane with Applied Potential | |
| CN102103088A (en) | Device and method for measuring water quality chemical oxygen demand by ozone method for acquiring total light intensity | |
| CN104388523B (en) | The method and device of total plate count in a kind of quick measurement water counted based on concentration | |
| CN105819548A (en) | Ultrafiltration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |