Electrothermal mineralization of per- and polyfluoroalkyl substances for soil remediation

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dc.citation.articleNumber6117
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber15
dc.contributor.authorCheng, Yi
dc.contributor.authorDeng, Bing
dc.contributor.authorScotland, Phelecia
dc.contributor.authorEddy, Lucas
dc.contributor.authorHassan, Arman
dc.contributor.authorWang, Bo
dc.contributor.authorSilva, Karla J.
dc.contributor.authorLi, Bowen
dc.contributor.authorWyss, Kevin M.
dc.contributor.authorUcak-Astarlioglu, Mine G.
dc.contributor.authorChen, Jinhang
dc.contributor.authorLiu, Qiming
dc.contributor.authorSi, Tengda
dc.contributor.authorXu, Shichen
dc.contributor.authorGao, Xiaodong
dc.contributor.authorJeBailey, Khalil
dc.contributor.authorJana, Debadrita
dc.contributor.authorTorres, Mark Albert
dc.contributor.authorWong, Michael S.
dc.contributor.authorYakobson, Boris I.
dc.contributor.authorGriggs, Christopher
dc.contributor.authorMcCary, Matthew A.
dc.contributor.authorZhao, Yufeng
dc.contributor.authorTour, James M.
dc.date.accessioned2024-08-07T19:15:02Z
dc.date.available2024-08-07T19:15:02Z
dc.date.issued2024
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.
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/s41467-024-49809-6
dc.identifier.digitals41467-024-49809-6
dc.identifier.doihttps://doi.org/10.1038/s41467-024-49809-6
dc.identifier.urihttps://hdl.handle.net/1911/117614
dc.language.isoeng
dc.publisherSpringer Nature
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.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleElectrothermal mineralization of per- and polyfluoroalkyl substances for soil remediation
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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