Electrothermal mineralization of per- and polyfluoroalkyl substances for soil remediation

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dc.citation.articleNumber6117en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber15en_US
dc.contributor.authorCheng, Yien_US
dc.contributor.authorDeng, Bingen_US
dc.contributor.authorScotland, Pheleciaen_US
dc.contributor.authorEddy, Lucasen_US
dc.contributor.authorHassan, Armanen_US
dc.contributor.authorWang, Boen_US
dc.contributor.authorSilva, Karla J.en_US
dc.contributor.authorLi, Bowenen_US
dc.contributor.authorWyss, Kevin M.en_US
dc.contributor.authorUcak-Astarlioglu, Mine G.en_US
dc.contributor.authorChen, Jinhangen_US
dc.contributor.authorLiu, Qimingen_US
dc.contributor.authorSi, Tengdaen_US
dc.contributor.authorXu, Shichenen_US
dc.contributor.authorGao, Xiaodongen_US
dc.contributor.authorJeBailey, Khalilen_US
dc.contributor.authorJana, Debadritaen_US
dc.contributor.authorTorres, Mark Alberten_US
dc.contributor.authorWong, Michael S.en_US
dc.contributor.authorYakobson, Boris I.en_US
dc.contributor.authorGriggs, Christopheren_US
dc.contributor.authorMcCary, Matthew A.en_US
dc.contributor.authorZhao, Yufengen_US
dc.contributor.authorTour, James M.en_US
dc.date.accessioned2024-08-07T19:15:02Zen_US
dc.date.available2024-08-07T19:15:02Zen_US
dc.date.issued2024en_US
dc.description.abstractPer- and polyfluoroalkyl substances (PFAS) are persistent and bioaccumulative pollutants that can easily accumulate in soil, posing a threat to environment and human health. Current PFAS degradation processes often suffer from low efficiency, high energy and water consumption, or lack of generality. Here, we develop a rapid electrothermal mineralization (REM) process to remediate PFAS-contaminated soil. With environmentally compatible biochar as the conductive additive, the soil temperature increases to >1000 °C within seconds by current pulse input, converting PFAS to calcium fluoride with inherent calcium compounds in soil. This process is applicable for remediating various PFAS contaminants in soil, with high removal efficiencies ( >99%) and mineralization ratios ( >90%). While retaining soil particle size, composition, water infiltration rate, and cation exchange capacity, REM facilitates an increase of exchangeable nutrient supply and arthropod survival in soil, rendering it superior to the time-consuming calcination approach that severely degrades soil properties. REM is scaled up to remediate soil at two kilograms per batch and promising for large-scale, on-site soil remediation. Life-cycle assessment and techno-economic analysis demonstrate REM as an environmentally friendly and economic process, with a significant reduction of energy consumption, greenhouse gas emission, water consumption, and operation cost, when compared to existing soil remediation practices.en_US
dc.identifier.citationCheng, Y., Deng, B., Scotland, P., Eddy, L., Hassan, A., Wang, B., Silva, K. J., Li, B., Wyss, K. M., Ucak-Astarlioglu, M. G., Chen, J., Liu, Q., Si, T., Xu, S., Gao, X., JeBailey, K., Jana, D., Torres, M. A., Wong, M. S., … Tour, J. M. (2024). Electrothermal mineralization of per- and polyfluoroalkyl substances for soil remediation. Nature Communications, 15(1), 6117. https://doi.org/10.1038/s41467-024-49809-6en_US
dc.identifier.digitals41467-024-49809-6en_US
dc.identifier.doihttps://doi.org/10.1038/s41467-024-49809-6en_US
dc.identifier.urihttps://hdl.handle.net/1911/117614en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) 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/4.0/en_US
dc.titleElectrothermal mineralization of per- and polyfluoroalkyl substances for soil remediationen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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