Removal of Per- and Polyfluoroalkyl Substances Using Commercially Available Sorbents
Rattachement africain : us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Per- and polyfluoroalkyl substances (PFAS) are persistent organic pollutants of growing environmental and human health concern, widely detected across various environmental compartments. Effective remediation strategies are essential to mitigate their widespread impacts. This study compared the performance of two types of commercially available sorbent materials, granular activated carbon (GAC, Filtrasorb-400) and organoclays (OC-200, and modified organoclays Fluoro-sorb-100 and Fluoro-sorb-200) for the removal of three representative PFAS compounds: perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorooctane sulfonic acid (PFOS) from water. Both organoclays and modified organoclays outperformed GAC, likely due to electrostatic interactions between the anionic PFAS compounds and the cationic functional groups of the modified organoclays. A pseudo-second-order kinetic model best described the rapid sorption kinetics of PFOA, PFNA, and PFOS. For PFOA, OC-200 demonstrated the highest adsorption capacities (qmax = 47.17 µg/g). For PFNA and PFOS, Fluoro-sorb-100 was the most effective sorbent, with qmax values at 99.01 µg/g and 65.79 µg/g, respectively. Desorption studies indicated that the sorption of the three PFAS compounds on these commercially available sorbents was largely irreversible. This study highlights the effectiveness and sorption capacities of different types of commercial sorbents for PFAS removal and offers valuable insights into the selection of reactive media for PFAS removal from water under environmentally relevant conditions.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Removal of Per- and Polyfluoroalkyl Substances Using Commercially Available Sorbents
- Date Crossref
- 15/03/2025
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Rowan University Department of Civil and Environmental Engineering pays non établi dans la noticeUniversité ou école supérieure
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Stevens Institute of Technology Department of Civil pays non établi dans la noticeUniversité ou école supérieure
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Tetra Tech (United States) pays non établi dans la noticeEntreprise
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Michigan Technological University Department of Biological Sciences pays non établi dans la noticeUniversité ou école supérieure
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Inc. Tetra Tech pays non établi dans la noticeEntreprise
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New York City Department of Environmental Protection pays non établi dans la noticeInstitution
Department of Civil and Environmental Engineering — Rowan University, Department of Civil — Stevens Institute of Technology et Tetra Tech (United States), avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.