Desalination of complex saline waters: sulfonated pentablock copolymer pervaporation membranes do not fail when exposed to scalants and surfactants

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dc.citation.articleNumber100080en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitleJournal of Membrane Science Lettersen_US
dc.citation.volumeNumber4en_US
dc.contributor.authorHernandez Molina, Marianaen_US
dc.contributor.authorLi, Yusien_US
dc.contributor.authorWalker, W. Shaneen_US
dc.contributor.authorVerduzco, Rafaelen_US
dc.contributor.authorLind, Mary Lauraen_US
dc.contributor.authorPerreault, Françoisen_US
dc.contributor.orgNSF Nanosystems Engineering Research Center Nanotechnology-Enabled Water Treatmenten_US
dc.date.accessioned2024-08-29T21:11:42Zen_US
dc.date.available2024-08-29T21:11:42Zen_US
dc.date.issued2024en_US
dc.description.abstractAs a vapor pressure-driven process, pervaporation (PV) shares several of the advantages of membrane distillation (MD), such as the ability to tackle high salinity waters and the possibility of integrating low grade heat sources to reduce energy consumption. Membrane scaling and pore wetting remain strong limitations to the implementation of MD desalination. In comparison, dense, non-porous PV membranes are considered. In this study, PV membranes made from NEXARTM, a sulfonated pentablock copolymer, were evaluated and compared to polytetrafluoroethylene (PTFE) MD membranes in a vacuum configuration. The membranes were tested using three solutions: 32 g L-1 sodium chloride (NaCl), a brackish water (8.4 g L-1) of high scaling potential, and 5.5 g L-1 NaCl with 1 mM sodium dodecyl sulfate. The NEXARTM membrane achieved a permeance of 93.1±44.6 kg m-2 h-1 bar-1 for the 32 g L-1 brine, which was almost 20% higher than the PTFE MD membrane. This permeance decreased in the presence of foulants; however, in contrast with the MD membrane, where scaling and surfactants induced pore wetting, the salt rejection for the NEXARTM PV membrane was constant at >99% for all water types. These results emphasize the robustness of PV as a process to deal with challenging saline waters.en_US
dc.identifier.citationHernandez Molina, M., Li, Y., Walker, W. S., Verduzco, R., Lind, M. L., & Perreault, F. (2024). Desalination of complex saline waters: Sulfonated pentablock copolymer pervaporation membranes do not fail when exposed to scalants and surfactants. Journal of Membrane Science Letters, 4(2), 100080. https://doi.org/10.1016/j.memlet.2024.100080en_US
dc.identifier.digital1-s2-0-S277242122400014X-mainen_US
dc.identifier.doihttps://doi.org/10.1016/j.memlet.2024.100080en_US
dc.identifier.urihttps://hdl.handle.net/1911/117713en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleDesalination of complex saline waters: sulfonated pentablock copolymer pervaporation membranes do not fail when exposed to scalants and surfactantsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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