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dc.contributor.authorSiebdrath, Nadine
dc.contributor.authorDing, Wei
dc.contributor.authorPietsch, Elisabeth
dc.contributor.authorKruithof, Joop
dc.contributor.authorUhl, Wolfgang
dc.contributor.authorVrouwenvelder, Johannes S.
dc.date.accessioned2017-12-07T13:16:38Z
dc.date.available2017-12-07T13:16:38Z
dc.date.issued2017
dc.identifier.citationSiebdrath N, Ding W, Pietsch E, Kruithof J, Uhl W, et al. (2017) Construction and validation of a long-channel membrane test cell for representative monitoring of performance and characterization of fouling over the length of spiral-wound membrane modules. DESALINATION AND WATER TREATMENT 89: 1–16. Available: http://dx.doi.org/10.5004/dwt.2017.21077.
dc.identifier.doi10.5004/dwt.2017.21077
dc.identifier.urihttp://hdl.handle.net/10754/626316
dc.description.abstractA long-channel membrane test cell (LCMTC) with the same length as full-scale elements was developed to simulate performance and fouling in nanofiltration and reverse osmosis spiral-wound membrane modules (SWMs). The transparent LCMTC enabled simultaneous monitoring of SWM performance indicators: feed channel pressure drop, permeate flux and salt passage. Both permeate flux and salt passage were monitored over five sections of the test cell and were related to the amount and composition of the accumulated foulant in these five sections, illustrating the unique features of the test cell. Validation experiments at various feed pressures showed the same flow profile and the same hydraulic behaviour as SWMs used in practice, confirming the representativeness and suitability of the test cell to study SWM operation and fouling. The importance to apply feed spacers matching the flow channel height in test cell systems was demonstrated. Biofouling studies showed that the dosage of a biodegradable substrate to the feed of the LCMTC accelerated the gradual decrease of membrane performance and the accumulation of biomass on the spacer and membrane sheets. The strongest permeate flux decline and the largest amount of accumulated biomass was found in the first 18 cm of the test cell. The LCMTC showed to be suitable to study the impact of biofilm development and biofouling control strategies under representative conditions for full-scale membrane elements.
dc.description.sponsorshipThe authors thank the German Federal Ministry of Education and Research (BMBF) for the financial support of the project “Fouling minimized reclamation of secondary effluents with Reverse Osmosis” (ReSeRO) under grant no. 02WA1076. Further, several people have given time and efforts on discussion of the introduced topic and are thus thanked Mr. A. Lerch (Chair of Water Supply Engineering, TU Dresden, Germany) for stimulating suggestions during the construction of the LCMTC, Mrs. J. Brückner, Mr. G. Orzechowski and Mr. D. Diersche (Chair of Water Supply Engineering, TU Dresden, Germany) for their help regarding analysis and support on the setup of the test rig, respectively, Mr. D. Kreutzmann and Mr. M. Meinel for discussions on material strength and tensions, Mr. J. Friedrich (Institute of Lightweight Engineering and Polymer Technology, TU Dresden) for the supply of the PMMA model calculation on material strength and Mr. S. Bucs (KAUST) for his help with the Rhodamine B experiment.
dc.publisherDesalination Publications
dc.relation.urlhttp://www.deswater.com/DWT_articles/vol_89_papers/89_2017_1.pdf
dc.rightsCopyright is retained by Balaban Publishers – Desalination Publications and is granted to authors who may place their papers on their personal or institutional websites (Harvard System). An electronic copy of the final paper will be provided to authors for such use.
dc.subjectBiofouling
dc.subjectFeed spacer
dc.subjectMembrane performance
dc.subjectNF
dc.subjectPermeate production
dc.subjectRO spiral-wound module
dc.titleConstruction and validation of a long-channel membrane test cell for representative monitoring of performance and characterization of fouling over the length of spiral-wound membrane modules
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalDESALINATION AND WATER TREATMENT
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionTechnische Universität Dresden, Dresden, 01062, , Germany
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, 8911 MA, , Netherlands
dc.contributor.institutionNorwegian Institute for Water Research (NIVA), Gaustadalléen 21, Oslo, 0349, , Norway
dc.contributor.institutionDelft University of Technology, Faculty of Applied Sciences, Department of Biotechnology, Van der Maasweg 9, Delft, 2629 HZ, , Netherlands
kaust.personVrouwenvelder, Johannes S.
refterms.dateFOA2018-06-13T14:44:57Z


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