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Membrane fouling monitoring by 3ω sensing
Membrane fouling significantly reduces membrane permeability, leading to higher operational expenses. In situ monitoring of membrane fouling can potentially be used to reduce operation cost by optimizing operational parameters and cleaning conditions. In this study, a platinum wire with a diameter o...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10502093/ https://www.ncbi.nlm.nih.gov/pubmed/37709852 http://dx.doi.org/10.1038/s41598-023-42337-1 |
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author | Jørgensen, Mads Koustrup Paulsen, Frederikke Kildeberg Bentien, Anders Kjul, Astrid Ræbild Poulsen, Maiken Mikkelsen, Louise Mailund Thavaneswaran, Nikitha Hansen, Simon Abildgaard Jensen, Pernille Krogsager Andersen, Jacob Østedgaard-Munck, David N. Bendtsen, Jan Dimon Christensen, Morten Lykkegaard |
author_facet | Jørgensen, Mads Koustrup Paulsen, Frederikke Kildeberg Bentien, Anders Kjul, Astrid Ræbild Poulsen, Maiken Mikkelsen, Louise Mailund Thavaneswaran, Nikitha Hansen, Simon Abildgaard Jensen, Pernille Krogsager Andersen, Jacob Østedgaard-Munck, David N. Bendtsen, Jan Dimon Christensen, Morten Lykkegaard |
author_sort | Jørgensen, Mads Koustrup |
collection | PubMed |
description | Membrane fouling significantly reduces membrane permeability, leading to higher operational expenses. In situ monitoring of membrane fouling can potentially be used to reduce operation cost by optimizing operational parameters and cleaning conditions. In this study, a platinum wire with a diameter of 20 µm was attached to the surface of a ceramic ultrafiltration membrane, and by measuring the voltage across the wire while applying an AC current, the amplitude of the third harmonic wave, the so-called 3ω signal, was obtained. Results showed increasing 3ω signals during formation of fouling layers, which correlates directly to the hydraulic resistance of the formed fouling layer in semi-dead end filtration of polymeric core shell particles and crossflow filtration of diluted milk. This is explained by the insulating effect of the fouling layers which reduces heat convection by crossflow and the different thermal conductivity in the fouling layer compared with the feed. After membrane cleaning, the permeability and the magnitude of the 3ω signal were partly restored, showing that the 3ω method can be used to monitor the effect of cleaning. The frequency of the AC current was varied so it was possible to measure the heat conductivity in the fouling layer (high frequency) and heat convection due to cross-flow (low frequency). This may potentially be used to get information of the type of fouling (heat conductivity) and thickness of the fouling layer (AC frequency where heat conductivity becomes dominating). |
format | Online Article Text |
id | pubmed-10502093 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105020932023-09-16 Membrane fouling monitoring by 3ω sensing Jørgensen, Mads Koustrup Paulsen, Frederikke Kildeberg Bentien, Anders Kjul, Astrid Ræbild Poulsen, Maiken Mikkelsen, Louise Mailund Thavaneswaran, Nikitha Hansen, Simon Abildgaard Jensen, Pernille Krogsager Andersen, Jacob Østedgaard-Munck, David N. Bendtsen, Jan Dimon Christensen, Morten Lykkegaard Sci Rep Article Membrane fouling significantly reduces membrane permeability, leading to higher operational expenses. In situ monitoring of membrane fouling can potentially be used to reduce operation cost by optimizing operational parameters and cleaning conditions. In this study, a platinum wire with a diameter of 20 µm was attached to the surface of a ceramic ultrafiltration membrane, and by measuring the voltage across the wire while applying an AC current, the amplitude of the third harmonic wave, the so-called 3ω signal, was obtained. Results showed increasing 3ω signals during formation of fouling layers, which correlates directly to the hydraulic resistance of the formed fouling layer in semi-dead end filtration of polymeric core shell particles and crossflow filtration of diluted milk. This is explained by the insulating effect of the fouling layers which reduces heat convection by crossflow and the different thermal conductivity in the fouling layer compared with the feed. After membrane cleaning, the permeability and the magnitude of the 3ω signal were partly restored, showing that the 3ω method can be used to monitor the effect of cleaning. The frequency of the AC current was varied so it was possible to measure the heat conductivity in the fouling layer (high frequency) and heat convection due to cross-flow (low frequency). This may potentially be used to get information of the type of fouling (heat conductivity) and thickness of the fouling layer (AC frequency where heat conductivity becomes dominating). Nature Publishing Group UK 2023-09-14 /pmc/articles/PMC10502093/ /pubmed/37709852 http://dx.doi.org/10.1038/s41598-023-42337-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Jørgensen, Mads Koustrup Paulsen, Frederikke Kildeberg Bentien, Anders Kjul, Astrid Ræbild Poulsen, Maiken Mikkelsen, Louise Mailund Thavaneswaran, Nikitha Hansen, Simon Abildgaard Jensen, Pernille Krogsager Andersen, Jacob Østedgaard-Munck, David N. Bendtsen, Jan Dimon Christensen, Morten Lykkegaard Membrane fouling monitoring by 3ω sensing |
title | Membrane fouling monitoring by 3ω sensing |
title_full | Membrane fouling monitoring by 3ω sensing |
title_fullStr | Membrane fouling monitoring by 3ω sensing |
title_full_unstemmed | Membrane fouling monitoring by 3ω sensing |
title_short | Membrane fouling monitoring by 3ω sensing |
title_sort | membrane fouling monitoring by 3ω sensing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10502093/ https://www.ncbi.nlm.nih.gov/pubmed/37709852 http://dx.doi.org/10.1038/s41598-023-42337-1 |
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