Nernst–Planck analysis of reverse-electrodialysis with the thin-composite pore-filling membranes and its upscaling potential
To properly design reverse electrodialysis (RED) stacks, modeling of ion transport and prediction of power generation on the single RED stack are very important. Currently, the Nernst–Planck equation is widely adopted to simulate ion transport through IEMs. However, applying typical Nernst-Planck eq...
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Veröffentlicht in: | Water research (Oxford) 2019-11, Vol.165, p.114970-114970, Article 114970 |
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creator | Kim, Hanki Jeong, Namjo Yang, SeungCheol Choi, Jiyeon Lee, Mi-Soon Nam, Joo-Youn Jwa, Eunjin Kim, Byungki Ryu, Kyung-sang Choi, Young-Woo |
description | To properly design reverse electrodialysis (RED) stacks, modeling of ion transport and prediction of power generation on the single RED stack are very important. Currently, the Nernst–Planck equation is widely adopted to simulate ion transport through IEMs. However, applying typical Nernst-Planck equation is not proper to analyze ion transport through the heterogeneous thin-composite pore-filling membrane because of the non-conductive site in the membrane matrix. Herein, we firstly introduced modified Nernst-Planck equation by addressing conductive traveling length (CTL) to simulate the ion transport through the thin-composite pore-filling membranes and the performance of a single RED stack with the same membranes. Also, 100 cell-pairs of RED stacks were assembled to validate modified Nernst-Planck equation according to the flow rate and membrane types. Under the OCV condition, the conductivity of the effluents was measured to validate the modified Nernst-Planck equation, and differences between modeling and experiments were less than 1.5 mS/cm. Theoretical OCV and current density were estimated by using modified Nernst-Planck equation. In particular, hydrophobicity on the surface of the heterogeneous membrane was considered to describe ion transport through the pore-filling membranes. Moreover, power generation from RED stacks was calculated according to the flow rate and the number of cell pairs.
[Display omitted]
•Studied newly developed thin-film ion exchange membrane for reverse electrodialysis.•Modified Nernst-Planck equation accounts for conductive traveling length.•Employed experiments and simulations to validate the adapted model.•Considered hydrophobicity of membrane surface to describe electrical current. |
doi_str_mv | 10.1016/j.watres.2019.114970 |
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[Display omitted]
•Studied newly developed thin-film ion exchange membrane for reverse electrodialysis.•Modified Nernst-Planck equation accounts for conductive traveling length.•Employed experiments and simulations to validate the adapted model.•Considered hydrophobicity of membrane surface to describe electrical current.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2019.114970</identifier><identifier>PMID: 31426007</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Bioelectric Energy Sources ; Electric Conductivity ; Ion transport ; Membranes, Artificial ; Modeling ; Nernst–Planck equation ; Pore-filling membrane ; Reverse electrodialysis</subject><ispartof>Water research (Oxford), 2019-11, Vol.165, p.114970-114970, Article 114970</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright © 2019 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-cec6fdde0ecd8619cf973fd98ac7444e2e1b36c6d3930bf2e4adac5dc1d8382d3</citedby><cites>FETCH-LOGICAL-c362t-cec6fdde0ecd8619cf973fd98ac7444e2e1b36c6d3930bf2e4adac5dc1d8382d3</cites><orcidid>0000-0002-0295-644X ; 0000-0002-0184-7356</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0043135419307444$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31426007$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kim, Hanki</creatorcontrib><creatorcontrib>Jeong, Namjo</creatorcontrib><creatorcontrib>Yang, SeungCheol</creatorcontrib><creatorcontrib>Choi, Jiyeon</creatorcontrib><creatorcontrib>Lee, Mi-Soon</creatorcontrib><creatorcontrib>Nam, Joo-Youn</creatorcontrib><creatorcontrib>Jwa, Eunjin</creatorcontrib><creatorcontrib>Kim, Byungki</creatorcontrib><creatorcontrib>Ryu, Kyung-sang</creatorcontrib><creatorcontrib>Choi, Young-Woo</creatorcontrib><title>Nernst–Planck analysis of reverse-electrodialysis with the thin-composite pore-filling membranes and its upscaling potential</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>To properly design reverse electrodialysis (RED) stacks, modeling of ion transport and prediction of power generation on the single RED stack are very important. Currently, the Nernst–Planck equation is widely adopted to simulate ion transport through IEMs. However, applying typical Nernst-Planck equation is not proper to analyze ion transport through the heterogeneous thin-composite pore-filling membrane because of the non-conductive site in the membrane matrix. Herein, we firstly introduced modified Nernst-Planck equation by addressing conductive traveling length (CTL) to simulate the ion transport through the thin-composite pore-filling membranes and the performance of a single RED stack with the same membranes. Also, 100 cell-pairs of RED stacks were assembled to validate modified Nernst-Planck equation according to the flow rate and membrane types. Under the OCV condition, the conductivity of the effluents was measured to validate the modified Nernst-Planck equation, and differences between modeling and experiments were less than 1.5 mS/cm. Theoretical OCV and current density were estimated by using modified Nernst-Planck equation. In particular, hydrophobicity on the surface of the heterogeneous membrane was considered to describe ion transport through the pore-filling membranes. Moreover, power generation from RED stacks was calculated according to the flow rate and the number of cell pairs.
[Display omitted]
•Studied newly developed thin-film ion exchange membrane for reverse electrodialysis.•Modified Nernst-Planck equation accounts for conductive traveling length.•Employed experiments and simulations to validate the adapted model.•Considered hydrophobicity of membrane surface to describe electrical current.</description><subject>Bioelectric Energy Sources</subject><subject>Electric Conductivity</subject><subject>Ion transport</subject><subject>Membranes, Artificial</subject><subject>Modeling</subject><subject>Nernst–Planck equation</subject><subject>Pore-filling membrane</subject><subject>Reverse electrodialysis</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1OHDEQha0oKAwkN4hQL7Ppif-mfzZIESIJEoIsYG15ytXBQ3e7cXlAbFDuwA1zkpj0hGUWpVq8V--pPsY-Cr4UXFSfN8sHmyLSUnLRLoXQbc3fsIVo6raUWjdv2YJzrUqhVnqfHRBtOOdSqvYd21dCy4rzesGeLjCOlH7_ev7R2xFuCzva_pE8FaErIt5jJCyxR0gxOL-THny6KdIN5vFjCWGYAvmExRQilp3vez_-LAYc1tGOSDnSFT5RsZ0I7F9tCgnHlOPes73O9oQfdvuQXX89vTr5Xp5ffjs7-XJegqpkKgGh6pxDjuCaSrTQtbXqXNtYqLXWKFGsVQWVU63i606its7CyoFwjWqkU4fs05w7xXC3RUpm8ATY558xbMlI2fBVteKCZ6uerRADUcTOTNEPNj4awc0LebMxM3nzQt7M5PPZ0a5hux7QvR79Q50Nx7MB85_3HqMh8DgCOh8zXuOC_3_DHzJbnCQ</recordid><startdate>20191115</startdate><enddate>20191115</enddate><creator>Kim, Hanki</creator><creator>Jeong, Namjo</creator><creator>Yang, SeungCheol</creator><creator>Choi, Jiyeon</creator><creator>Lee, Mi-Soon</creator><creator>Nam, Joo-Youn</creator><creator>Jwa, Eunjin</creator><creator>Kim, Byungki</creator><creator>Ryu, Kyung-sang</creator><creator>Choi, Young-Woo</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-0295-644X</orcidid><orcidid>https://orcid.org/0000-0002-0184-7356</orcidid></search><sort><creationdate>20191115</creationdate><title>Nernst–Planck analysis of reverse-electrodialysis with the thin-composite pore-filling membranes and its upscaling potential</title><author>Kim, Hanki ; Jeong, Namjo ; Yang, SeungCheol ; Choi, Jiyeon ; Lee, Mi-Soon ; Nam, Joo-Youn ; Jwa, Eunjin ; Kim, Byungki ; Ryu, Kyung-sang ; Choi, Young-Woo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-cec6fdde0ecd8619cf973fd98ac7444e2e1b36c6d3930bf2e4adac5dc1d8382d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Bioelectric Energy Sources</topic><topic>Electric Conductivity</topic><topic>Ion transport</topic><topic>Membranes, Artificial</topic><topic>Modeling</topic><topic>Nernst–Planck equation</topic><topic>Pore-filling membrane</topic><topic>Reverse electrodialysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Hanki</creatorcontrib><creatorcontrib>Jeong, Namjo</creatorcontrib><creatorcontrib>Yang, SeungCheol</creatorcontrib><creatorcontrib>Choi, Jiyeon</creatorcontrib><creatorcontrib>Lee, Mi-Soon</creatorcontrib><creatorcontrib>Nam, Joo-Youn</creatorcontrib><creatorcontrib>Jwa, Eunjin</creatorcontrib><creatorcontrib>Kim, Byungki</creatorcontrib><creatorcontrib>Ryu, Kyung-sang</creatorcontrib><creatorcontrib>Choi, Young-Woo</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Hanki</au><au>Jeong, Namjo</au><au>Yang, SeungCheol</au><au>Choi, Jiyeon</au><au>Lee, Mi-Soon</au><au>Nam, Joo-Youn</au><au>Jwa, Eunjin</au><au>Kim, Byungki</au><au>Ryu, Kyung-sang</au><au>Choi, Young-Woo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nernst–Planck analysis of reverse-electrodialysis with the thin-composite pore-filling membranes and its upscaling potential</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2019-11-15</date><risdate>2019</risdate><volume>165</volume><spage>114970</spage><epage>114970</epage><pages>114970-114970</pages><artnum>114970</artnum><issn>0043-1354</issn><eissn>1879-2448</eissn><abstract>To properly design reverse electrodialysis (RED) stacks, modeling of ion transport and prediction of power generation on the single RED stack are very important. Currently, the Nernst–Planck equation is widely adopted to simulate ion transport through IEMs. However, applying typical Nernst-Planck equation is not proper to analyze ion transport through the heterogeneous thin-composite pore-filling membrane because of the non-conductive site in the membrane matrix. Herein, we firstly introduced modified Nernst-Planck equation by addressing conductive traveling length (CTL) to simulate the ion transport through the thin-composite pore-filling membranes and the performance of a single RED stack with the same membranes. Also, 100 cell-pairs of RED stacks were assembled to validate modified Nernst-Planck equation according to the flow rate and membrane types. Under the OCV condition, the conductivity of the effluents was measured to validate the modified Nernst-Planck equation, and differences between modeling and experiments were less than 1.5 mS/cm. Theoretical OCV and current density were estimated by using modified Nernst-Planck equation. In particular, hydrophobicity on the surface of the heterogeneous membrane was considered to describe ion transport through the pore-filling membranes. Moreover, power generation from RED stacks was calculated according to the flow rate and the number of cell pairs.
[Display omitted]
•Studied newly developed thin-film ion exchange membrane for reverse electrodialysis.•Modified Nernst-Planck equation accounts for conductive traveling length.•Employed experiments and simulations to validate the adapted model.•Considered hydrophobicity of membrane surface to describe electrical current.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>31426007</pmid><doi>10.1016/j.watres.2019.114970</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-0295-644X</orcidid><orcidid>https://orcid.org/0000-0002-0184-7356</orcidid></addata></record> |
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subjects | Bioelectric Energy Sources Electric Conductivity Ion transport Membranes, Artificial Modeling Nernst–Planck equation Pore-filling membrane Reverse electrodialysis |
title | Nernst–Planck analysis of reverse-electrodialysis with the thin-composite pore-filling membranes and its upscaling potential |
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