Title:
METHOD FOR FLUORESCENCE-BASED FOULING FORECASTING AND OPTIMIZATION IN MEMBRANE FILTRATION OPERATIONS
Document Type and Number:
WIPO Patent Application WO/2011/153625
Kind Code:
A3
Abstract:
The present invention provides a fluorescence-based modeling method that is capable of capturing the dynamic changes of different membrane foulant fractions that occur in fluid filtration operations. Principal component analysis is utilized to de-convolute spectral information captured within fluorescence EEMs into principal component scores that are related to different known foulant groups. The principal component scores are then used as states within a system of differential equations representing approximate mass balances of the main foulant groups to obtain a dynamic forecasting of membrane fouling. Based on the fouling dynamics forecasted by this modeling method, an optimization strategy can be developed for estimating the optimal membrane back- washing scenario for minimizing energy consumption while maximizing clean fluid production.
Inventors:
PEIRIS RAMILA HISHANTHA (CA)
BUDMAN HECTOR MARCELO (CA)
MORESOLI CHRISTINE (CA)
LEGGE RAYMOND L (CA)
BUDMAN HECTOR MARCELO (CA)
MORESOLI CHRISTINE (CA)
LEGGE RAYMOND L (CA)
Application Number:
PCT/CA2011/000674
Publication Date:
February 02, 2012
Filing Date:
June 10, 2011
Export Citation:
Assignee:
PEIRIS RAMILA HISHANTHA (CA)
BUDMAN HECTOR MARCELO (CA)
MORESOLI CHRISTINE (CA)
LEGGE RAYMOND L (CA)
BUDMAN HECTOR MARCELO (CA)
MORESOLI CHRISTINE (CA)
LEGGE RAYMOND L (CA)
International Classes:
B01D65/10; G01N21/64; G01N31/22
Domestic Patent References:
| WO2010109265A1 | 2010-09-30 | |||
| WO1996028236A1 | 1996-09-19 | |||
| WO2006078847A2 | 2006-07-27 |
Other References:
S. PELDSZUS ET AL.: "Reversible and irreversible low-pressure membrane foulants in drinking water treatment: Identification by principal component analysis of fluorescence EEM and mitigation by biofiltration pretreatment", WATER RESEARCH, 23 July 2011 (2011-07-23)
R. PEIRIS ET AL.: "Optimiziation of a membrane filtration process for drinking water treatment using fluorescence-based measurements", PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON DYNAMICS AND CONTROL OF PROCESS SYSTEMS, 5 July 2010 (2010-07-05), pages 827 - 832
R. PEIRIS ET AL.: "Identifying fouling events in a membrane-based drinking water treatment process using principal component analysis of fluorescence exitation- emission matrices", WATER RESEARCH, vol. 44, 2010, pages 185 - 194
B. R. H. PEIRIS ET AL.: "Assessing nanofiltration fouling in drinking water treatment using fluorescense fingerprinting and LC-OCD analyses", WATER SCIENCE & TECHNOLOGY: WATER SUPPLY, vol. 8, 2008, pages 459 - 465
R. PEIRIS ET AL.: "Optimiziation of a membrane filtration process for drinking water treatment using fluorescence-based measurements", PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON DYNAMICS AND CONTROL OF PROCESS SYSTEMS, 5 July 2010 (2010-07-05), pages 827 - 832
R. PEIRIS ET AL.: "Identifying fouling events in a membrane-based drinking water treatment process using principal component analysis of fluorescence exitation- emission matrices", WATER RESEARCH, vol. 44, 2010, pages 185 - 194
B. R. H. PEIRIS ET AL.: "Assessing nanofiltration fouling in drinking water treatment using fluorescense fingerprinting and LC-OCD analyses", WATER SCIENCE & TECHNOLOGY: WATER SUPPLY, vol. 8, 2008, pages 459 - 465
Attorney, Agent or Firm:
DURELL, Karen (Scotia PlazaSuite 5800, 40 King Street Wes, Toronto Ontario M5H 3S1, CA)
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