In-situ investigation of wetting patterns in polymeric multibore membranes via magnetic resonance imaging
نویسندگان
چکیده
Wetting of the membrane to displace air or conditioning liquids is important exploit complex porosity a filtration membrane. This study reveals details wetting in multibore membrane-based modules. Using magnetic resonance imaging (MRI), we quantify fluid distribution patterns during initial dead-end permeation mode. The spatio-temporal evolution aqueous copper sulfate solution fibers was investigated as function applied flux, packing density, and position along module length. Three conditions were examined: delivery-state membranes, ethanol-washed dried (air-filled) ethanol-filled membranes. Significant changes observed due interfacial polymer swelling effects. in-situ investigation slow progression over six hours more obtain complete wetting, even at high fluxes 200 LMH. However, an increased flux leads faster kinetics evolving are dependent. density additionally impacts by shifting prevalent pressure conditions. Although mode, non-uniform In addition this parameter study, different pre-wetting agents' effect on displacement behavior depth. helps understand (a) phenomena inside membranes filtration, (b) membranes' interaction with their surroundings neighboring (c) used system for resulting patterns.
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ژورنال
عنوان ژورنال: Journal of Membrane Science
سال: 2021
ISSN: ['1873-3123', '0376-7388']
DOI: https://doi.org/10.1016/j.memsci.2020.119026