Development of a setup to enable stable and accurate flow conditions for membrane biofouling studies

Handle URI:
http://hdl.handle.net/10754/594217
Title:
Development of a setup to enable stable and accurate flow conditions for membrane biofouling studies
Authors:
Bucs, Szilard; Farhat, Nadia ( 0000-0002-0588-8876 ) ; Siddiqui, Amber; Valladares Linares, Rodrigo ( 0000-0003-3790-3249 ) ; Radu, Andrea; Kruithof, Joop C.; Vrouwenvelder, Johannes S. ( 0000-0003-2668-2057 )
Abstract:
Systematic laboratory studies on membrane biofouling require experimental conditions that are well defined and representative for practice. Hydrodynamics and flow rate variations affect biofilm formation, morphology, and detachment and impacts on membrane performance parameters such as feed channel pressure drop. There is a suite of available monitors to study biofouling, but systems to operate monitors have not been well designed to achieve an accurate, constant water flow required for a reliable determination of biomass accumulation and feed channel pressure drop increase. Studies were done with membrane fouling simulators operated in parallel with manual and automated flow control, with and without dosage of a biodegradable substrate to the feedwater to enhance biofouling rate. High flow rate variations were observed for the manual water flow system (up to ≈9%) compared to the automatic flow control system (<1%). The flow rate variation in the manual system was strongly increased by biofilm accumulation, while the automatic system maintained an accurate and constant water flow in the monitor. The flow rate influences the biofilm accumulation and the impact of accumulated biofilm on membrane performance. The effect of the same amount of accumulated biomass on the pressure drop increase was related to the linear flow velocity. Stable and accurate feedwater flow rates are essential for biofouling studies in well-defined conditions in membrane systems. © 2015 Balaban Desalination Publications. All rights reserved.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)
Citation:
Bucs SS, Farhat N, Siddiqui A, Valladares Linares R, Radu A, et al. (2015) Development of a setup to enable stable and accurate flow conditions for membrane biofouling studies. Desalination and Water Treatment: 1–9. Available: http://dx.doi.org/10.1080/19443994.2015.1057037.
Publisher:
Informa UK Limited
Journal:
Desalination and Water Treatment
Issue Date:
10-Jul-2015
DOI:
10.1080/19443994.2015.1057037
Type:
Article
ISSN:
1944-3994; 1944-3986
Appears in Collections:
Articles; Environmental Science and Engineering Program; 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.authorFarhat, Nadiaen
dc.contributor.authorSiddiqui, Amberen
dc.contributor.authorValladares Linares, Rodrigoen
dc.contributor.authorRadu, Andreaen
dc.contributor.authorKruithof, Joop C.en
dc.contributor.authorVrouwenvelder, Johannes S.en
dc.date.accessioned2016-01-19T14:43:30Zen
dc.date.available2016-01-19T14:43:30Zen
dc.date.issued2015-07-10en
dc.identifier.citationBucs SS, Farhat N, Siddiqui A, Valladares Linares R, Radu A, et al. (2015) Development of a setup to enable stable and accurate flow conditions for membrane biofouling studies. Desalination and Water Treatment: 1–9. Available: http://dx.doi.org/10.1080/19443994.2015.1057037.en
dc.identifier.issn1944-3994en
dc.identifier.issn1944-3986en
dc.identifier.doi10.1080/19443994.2015.1057037en
dc.identifier.urihttp://hdl.handle.net/10754/594217en
dc.description.abstractSystematic laboratory studies on membrane biofouling require experimental conditions that are well defined and representative for practice. Hydrodynamics and flow rate variations affect biofilm formation, morphology, and detachment and impacts on membrane performance parameters such as feed channel pressure drop. There is a suite of available monitors to study biofouling, but systems to operate monitors have not been well designed to achieve an accurate, constant water flow required for a reliable determination of biomass accumulation and feed channel pressure drop increase. Studies were done with membrane fouling simulators operated in parallel with manual and automated flow control, with and without dosage of a biodegradable substrate to the feedwater to enhance biofouling rate. High flow rate variations were observed for the manual water flow system (up to ≈9%) compared to the automatic flow control system (<1%). The flow rate variation in the manual system was strongly increased by biofilm accumulation, while the automatic system maintained an accurate and constant water flow in the monitor. The flow rate influences the biofilm accumulation and the impact of accumulated biofilm on membrane performance. The effect of the same amount of accumulated biomass on the pressure drop increase was related to the linear flow velocity. Stable and accurate feedwater flow rates are essential for biofouling studies in well-defined conditions in membrane systems. © 2015 Balaban Desalination Publications. All rights reserved.en
dc.publisherInforma UK Limiteden
dc.subjectBiofoulingen
dc.subjectControlled biofouling studiesen
dc.subjectFeed flow rateen
dc.subjectMFS operation systemen
dc.subjectPressure dropen
dc.titleDevelopment of a setup to enable stable and accurate flow conditions for membrane biofouling studiesen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalDesalination and Water Treatmenten
dc.contributor.institutionFaculty of Applied Sciences, Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628BC, Delft, The Netherlandsen
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlandsen
kaust.authorBucs, Szilarden
kaust.authorFarhat, Nadiaen
kaust.authorSiddiqui, Amberen
kaust.authorValladares Linares, Rodrigoen
kaust.authorVrouwenvelder, Johannes S.en
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