Kinetic study of seawater reverse osmosis membrane fouling

Handle URI:
http://hdl.handle.net/10754/563022
Title:
Kinetic study of seawater reverse osmosis membrane fouling
Authors:
Khan, Muhammad; De, Carmemlara; Aubry, Cyril; Gutiérrez, Leonardo A.; Croue, Jean-Philippe
Abstract:
Reverse osmosis (RO) membrane fouling is not a static state but a dynamic phenomenon. The investigation of fouling kinetics and dynamics of change in the composition of the foulant mass is essential to elucidate the mechanism of fouling and foulant-foulant interactions. The aim of this work was to study at a lab scale the fouling process with an emphasis on the changes in the relative composition of foulant material as a function of operating time. Fouled membrane samples were collected at 8 h, and 1, 2, and 4 weeks on a lab-scale RO unit operated in recirculation mode. Foulant characterization was performed by CLSM, AFM, ATR-FTIR, pyrolysis GC-MS, and ICP-MS techniques. Moreover, measurement of active biomass and analysis of microbial diversity were performed by ATP analysis and DNA extraction, followed by pyro-sequencing, respectively. A progressive increase in the abundance of almost all the foulant species was observed, but their relative proportion changed over the age of the fouling layer. Microbial population in all the membrane samples was dominated by specific groups/species belonging to Proteobacteria and Actinobacteria phyla; however, similar to abiotic foulant, their relative abundance also changed with the biofilm age. © 2013 American Chemical Society.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination & Reuse Research Cntr
Publisher:
American Chemical Society (ACS)
Journal:
Environmental Science & Technology
Issue Date:
Oct-2013
DOI:
10.1021/es402138e
PubMed ID:
24032659
Type:
Article
ISSN:
0013936X
Sponsors:
We thank Dr. Wei Xu and Guangchao Wang for help in analyzing samples with confocal laser scanning microscope. Additionally, we thankfully acknowledge the support received from our WDRC lab staff. All the funds for this work were provided by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Muhammaden
dc.contributor.authorDe, Carmemlaraen
dc.contributor.authorAubry, Cyrilen
dc.contributor.authorGutiérrez, Leonardo A.en
dc.contributor.authorCroue, Jean-Philippeen
dc.date.accessioned2015-08-03T11:33:55Zen
dc.date.available2015-08-03T11:33:55Zen
dc.date.issued2013-10en
dc.identifier.issn0013936Xen
dc.identifier.pmid24032659en
dc.identifier.doi10.1021/es402138een
dc.identifier.urihttp://hdl.handle.net/10754/563022en
dc.description.abstractReverse osmosis (RO) membrane fouling is not a static state but a dynamic phenomenon. The investigation of fouling kinetics and dynamics of change in the composition of the foulant mass is essential to elucidate the mechanism of fouling and foulant-foulant interactions. The aim of this work was to study at a lab scale the fouling process with an emphasis on the changes in the relative composition of foulant material as a function of operating time. Fouled membrane samples were collected at 8 h, and 1, 2, and 4 weeks on a lab-scale RO unit operated in recirculation mode. Foulant characterization was performed by CLSM, AFM, ATR-FTIR, pyrolysis GC-MS, and ICP-MS techniques. Moreover, measurement of active biomass and analysis of microbial diversity were performed by ATP analysis and DNA extraction, followed by pyro-sequencing, respectively. A progressive increase in the abundance of almost all the foulant species was observed, but their relative proportion changed over the age of the fouling layer. Microbial population in all the membrane samples was dominated by specific groups/species belonging to Proteobacteria and Actinobacteria phyla; however, similar to abiotic foulant, their relative abundance also changed with the biofilm age. © 2013 American Chemical Society.en
dc.description.sponsorshipWe thank Dr. Wei Xu and Guangchao Wang for help in analyzing samples with confocal laser scanning microscope. Additionally, we thankfully acknowledge the support received from our WDRC lab staff. All the funds for this work were provided by King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleKinetic study of seawater reverse osmosis membrane foulingen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.identifier.journalEnvironmental Science & Technologyen
dc.contributor.institutionVale Institute of Technology (ITV), Rua Boaventura da Silva 955, Belem, Para, Brazilen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United Statesen
kaust.authorKhan, Muhammaden
kaust.authorAubry, Cyrilen
kaust.authorCroue, Jean-Philippeen
kaust.authorDe, Carmemlaraen

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