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Studying Fluid Characteristics Atop Surface Patterned Membranes via Particle Image Velocimetry |
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| Authors: | Didem Denizer Ibrahim M A ElSherbiny Mathias Ulbricht Stefan Panglisch |
| Affiliation: | 1. University of Duisburg-Essen, Chair for Mechanical Process Engineering and Water Technology, Lotharstraße 1, 47057 Duisburg, Germany
University of Duisburg-Essen, Chair for Technical Chemistry II, Universitätsstraße 7, 45141 Essen, Germany;2. University of Duisburg-Essen, Chair for Mechanical Process Engineering and Water Technology, Lotharstraße 1, 47057 Duisburg, Germany;3. University of Duisburg-Essen, Chair for Technical Chemistry II, Universitätsstraße 7, 45141 Essen, Germany Center for Water and Environmental Research (ZWU), Universitätsstraße 2, 45141 Essen, Germany DGMT German Society of Membrane Technology, Geschäftsstelle ZWU, Universitätsstraße 2, 45141 Essen, Germany;4. University of Duisburg-Essen, Chair for Mechanical Process Engineering and Water Technology, Lotharstraße 1, 47057 Duisburg, Germany Center for Water and Environmental Research (ZWU), Universitätsstraße 2, 45141 Essen, Germany DGMT German Society of Membrane Technology, Geschäftsstelle ZWU, Universitätsstraße 2, 45141 Essen, Germany IWW Water Center, Moritzstraße 26, 45476 Mülheim an der Ruhr, Germany |
| Abstract: | Surface patterning is a recent promising approach to promote performance of pressure-driven membranes in water treatment and desalination. Nevertheless, knowledge about foulant deposition mechanisms, especially at early stage of filtration, is still lacking. The applicability of particle imaging velocimetry to study fluid characteristics atop surface patterned thin-film composite membranes was investigated at different operating conditions. This work is an important first step toward reliable understanding of the impacts of topographical membrane surface modification on hydrodynamic conditions and foulant deposition mechanisms. |
| Keywords: | Fluid characteristics Hydrodynamic drag Membrane fouling Particle imaging velocimetry Surface patterning |