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dc.contributor.authorSiddiqui, Amber
dc.contributor.authorFarhat, Nadia
dc.contributor.authorBucs, Szilard
dc.contributor.authorValladares Linares, Rodrigo
dc.contributor.authorPicioreanu, Cristian
dc.contributor.authorKruithof, Joop C.
dc.contributor.authorvan Loosdrecht, Mark C.M.
dc.contributor.authorKidwell, James
dc.contributor.authorVrouwenvelder, Johannes S.
dc.date.accessioned2016-01-04T06:08:17Z
dc.date.available2016-01-04T06:08:17Z
dc.date.issued2016-01-02
dc.identifier.citationDevelopment and characterization of 3D-printed feed spacers for spiral wound membrane systems 2016 Water Research
dc.identifier.issn00431354
dc.identifier.pmid26773488
dc.identifier.doi10.1016/j.watres.2015.12.052
dc.identifier.urihttp://hdl.handle.net/10754/592740
dc.description.abstractFeed spacers are important for the impact of biofouling on the performance of spiral-wound reverse osmosis (RO) and nanofiltration (NF) membrane systems. The objective of this study was to propose a strategy for developing, characterizing, and testing of feed spacers by numerical modeling, three-dimensional (3D) printing of feed spacers and experimental membrane fouling simulator (MFS) studies. The results of numerical modeling on the hydraulic behavior of various feed spacer geometries suggested that the impact of spacers on hydraulics and biofouling can be improved. A good agreement was found for the modeled and measured relationship between linear flow velocity and pressure drop for feed spacers with the same geometry, indicating that modeling can serve as first step in spacer characterization. An experimental comparison study of a feed spacer currently applied in practice and a 3D printed feed spacer with the same geometry showed (i) similar hydraulic behavior, (ii) similar pressure drop development with time and (iii) similar biomass accumulation during MFS biofouling studies, indicating that 3D printing technology is an alternative strategy for development of thin feed spacers with a complex geometry. Based on the numerical modeling results, a modified feed spacer with low pressure drop was selected for 3D printing. The comparison study of the feed spacer from practice and the modified geometry 3D printed feed spacer established that the 3D printed spacer had (i) a lower pressure drop during hydraulic testing, (ii) a lower pressure drop increase in time with the same accumulated biomass amount, indicating that modifying feed spacer geometries can reduce the impact of accumulated biomass on membrane performance. The combination of numerical modeling of feed spacers and experimental testing of 3D printed feed spacers is a promising strategy (rapid, low cost and representative) to develop advanced feed spacers aiming to reduce the impact of biofilm formation on membrane performance and to improve the cleanability of spiral-wound NF and RO membrane systems. The proposed strategy may also be suitable to develop spacers in e.g. forward osmosis (FO), reverse electrodialysis (RED), membrane distillation (MD), and electrodeionisation (EDI) membrane systems.
dc.language.isoen
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0043135415304504
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Water Research, 2 January 2016. DOI: 10.1016/j.watres.2015.12.052
dc.subjectPolyjet 3D feed spacer printing technology
dc.subjectbiofouling control strategies
dc.subjectcleaning
dc.subjectspacer modification
dc.subjectdesalination
dc.subjectwater reuse
dc.titleDevelopment and characterization of 3D-printed feed spacers for spiral wound membrane systems
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalWater Research
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
dc.contributor.institutionConwed Plastics, 2810 Weeks Ave SE, Minneapolis 55414, USA
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personSiddiqui, Amber
kaust.personFarhat, Nadia
kaust.personBucs, Szilard
kaust.personValladares Linares, Rodrigo
kaust.personVrouwenvelder, Johannes S.
refterms.dateFOA2018-01-02T00:00:00Z


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