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Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes

Desalination technologies using salt-rejecting membranes are a highly efficient tool to provide fresh water and augment existing water supplies. In recent years, numerous studies have worked to advance a variety of membrane processes with different membrane types and driving forces, but direct quant...

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Autores principales: Lopez, Kian P., Wang, Ruoyu, Hjelvik, Elizabeth A., Lin, Shihong, Straub, Anthony P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812388/
https://www.ncbi.nlm.nih.gov/pubmed/36598997
http://dx.doi.org/10.1126/sciadv.ade0413
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author Lopez, Kian P.
Wang, Ruoyu
Hjelvik, Elizabeth A.
Lin, Shihong
Straub, Anthony P.
author_facet Lopez, Kian P.
Wang, Ruoyu
Hjelvik, Elizabeth A.
Lin, Shihong
Straub, Anthony P.
author_sort Lopez, Kian P.
collection PubMed
description Desalination technologies using salt-rejecting membranes are a highly efficient tool to provide fresh water and augment existing water supplies. In recent years, numerous studies have worked to advance a variety of membrane processes with different membrane types and driving forces, but direct quantitative comparisons of these different technologies have led to confusing and contradictory conclusions in the literature. In this Review, we critically assess different membrane-based desalination technologies and provide a universal framework for comparing various driving forces and membrane types. To accomplish this, we first quantify the thermodynamic driving forces resulting from pressure, concentration, and temperature gradients. We then examine the resistances experienced by water molecules as they traverse liquid- and air-filled membranes. Last, we quantify water fluxes in each process for differing desalination scenarios. We conclude by synthesizing results from the literature and our quantitative analyses to compare desalination processes, identifying specific scenarios where each process has fundamental advantages.
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spelling pubmed-98123882023-01-10 Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes Lopez, Kian P. Wang, Ruoyu Hjelvik, Elizabeth A. Lin, Shihong Straub, Anthony P. Sci Adv Physical and Materials Sciences Desalination technologies using salt-rejecting membranes are a highly efficient tool to provide fresh water and augment existing water supplies. In recent years, numerous studies have worked to advance a variety of membrane processes with different membrane types and driving forces, but direct quantitative comparisons of these different technologies have led to confusing and contradictory conclusions in the literature. In this Review, we critically assess different membrane-based desalination technologies and provide a universal framework for comparing various driving forces and membrane types. To accomplish this, we first quantify the thermodynamic driving forces resulting from pressure, concentration, and temperature gradients. We then examine the resistances experienced by water molecules as they traverse liquid- and air-filled membranes. Last, we quantify water fluxes in each process for differing desalination scenarios. We conclude by synthesizing results from the literature and our quantitative analyses to compare desalination processes, identifying specific scenarios where each process has fundamental advantages. American Association for the Advancement of Science 2023-01-04 /pmc/articles/PMC9812388/ /pubmed/36598997 http://dx.doi.org/10.1126/sciadv.ade0413 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Lopez, Kian P.
Wang, Ruoyu
Hjelvik, Elizabeth A.
Lin, Shihong
Straub, Anthony P.
Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title_full Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title_fullStr Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title_full_unstemmed Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title_short Toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
title_sort toward a universal framework for evaluating transport resistances and driving forces in membrane-based desalination processes
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812388/
https://www.ncbi.nlm.nih.gov/pubmed/36598997
http://dx.doi.org/10.1126/sciadv.ade0413
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