Biofouling in forward osmosis systems: An experimental and numerical study

Handle URI:
http://hdl.handle.net/10754/622278
Title:
Biofouling in forward osmosis systems: An experimental and numerical study
Authors:
Bucs, Szilard; Valladares Linares, Rodrigo ( 0000-0003-3790-3249 ) ; Vrouwenvelder, Johannes S. ( 0000-0003-2668-2057 ) ; Picioreanu, Cristian
Abstract:
This study evaluates with numerical simulations supported by experimental data the impact of biofouling on membrane performance in a cross-flow forward osmosis (FO) system. The two-dimensional numerical model couples liquid flow with solute transport in the FO feed and draw channels, in the FO membrane support layer and in the biofilm developed on one or both sides of the membrane. The developed model was tested against experimental measurements at various osmotic pressure differences and in batch operation without and with the presence of biofilm on the membrane active layer. Numerical studies explored the effect of biofilm properties (thickness, hydraulic permeability and porosity), biofilm membrane surface coverage, and biofilm location on salt external concentration polarization and on the permeation flux. The numerical simulations revealed that (i) when biofouling occurs, external concentration polarization became important, (ii) the biofilm hydraulic permeability and membrane surface coverage have the highest impact on water flux, and (iii) the biofilm formed in the draw channel impacts the process performance more than when formed in the feed channel. The proposed mathematical model helps to understand the impact of biofouling in FO membrane systems and to develop possible strategies to reduce and control biofouling. © 2016 Elsevier Ltd
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Bucs SS, Valladares Linares R, Vrouwenvelder JS, Picioreanu C (2016) Biofouling in forward osmosis systems: An experimental and numerical study. Water Research 106: 86–97. Available: http://dx.doi.org/10.1016/j.watres.2016.09.031.
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
20-Sep-2016
DOI:
10.1016/j.watres.2016.09.031
Type:
Article
ISSN:
0043-1354
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors gracefully acknowledge Andrea Radu (Swiss Federal Institute of Technology Zürich) and Maria Jose Mosqueira Santillan (MSc project, King Abdullah University of Science and Technology) for their support in the initial stages of the numerical model development.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0043135416307060
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.authorBucs, Szilarden
dc.contributor.authorValladares Linares, Rodrigoen
dc.contributor.authorVrouwenvelder, Johannes S.en
dc.contributor.authorPicioreanu, Cristianen
dc.date.accessioned2017-01-02T09:08:23Z-
dc.date.available2017-01-02T09:08:23Z-
dc.date.issued2016-09-20en
dc.identifier.citationBucs SS, Valladares Linares R, Vrouwenvelder JS, Picioreanu C (2016) Biofouling in forward osmosis systems: An experimental and numerical study. Water Research 106: 86–97. Available: http://dx.doi.org/10.1016/j.watres.2016.09.031.en
dc.identifier.issn0043-1354en
dc.identifier.doi10.1016/j.watres.2016.09.031en
dc.identifier.urihttp://hdl.handle.net/10754/622278-
dc.description.abstractThis study evaluates with numerical simulations supported by experimental data the impact of biofouling on membrane performance in a cross-flow forward osmosis (FO) system. The two-dimensional numerical model couples liquid flow with solute transport in the FO feed and draw channels, in the FO membrane support layer and in the biofilm developed on one or both sides of the membrane. The developed model was tested against experimental measurements at various osmotic pressure differences and in batch operation without and with the presence of biofilm on the membrane active layer. Numerical studies explored the effect of biofilm properties (thickness, hydraulic permeability and porosity), biofilm membrane surface coverage, and biofilm location on salt external concentration polarization and on the permeation flux. The numerical simulations revealed that (i) when biofouling occurs, external concentration polarization became important, (ii) the biofilm hydraulic permeability and membrane surface coverage have the highest impact on water flux, and (iii) the biofilm formed in the draw channel impacts the process performance more than when formed in the feed channel. The proposed mathematical model helps to understand the impact of biofouling in FO membrane systems and to develop possible strategies to reduce and control biofouling. © 2016 Elsevier Ltden
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors gracefully acknowledge Andrea Radu (Swiss Federal Institute of Technology Zürich) and Maria Jose Mosqueira Santillan (MSc project, King Abdullah University of Science and Technology) for their support in the initial stages of the numerical model development.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0043135416307060en
dc.subjectDesalinationen
dc.subjectForward osmosis foulingen
dc.subjectNumerical modelen
dc.subjectSpiral-wound membrane moduleen
dc.subjectWater filtrationen
dc.subjectWater reuseen
dc.titleBiofouling in forward osmosis systems: An experimental and numerical studyen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalWater Researchen
dc.contributor.institutionDepartment of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 67, Delft, BC, Netherlandsen
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, MA, Netherlandsen
kaust.authorBucs, Szilarden
kaust.authorValladares Linares, Rodrigoen
kaust.authorVrouwenvelder, Johannes S.en
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