Remediation of poly- and perfluoroalkyl substances (PFAS) contaminated soils: To mobilize or to immobilize or to degrade?Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka.
Department of Pediatrics, New York University School of Medicine, New York, New York, USA.
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Soil- and Groundwater-Management, Institute of Soil Engineering, Waste- and Water-Management, Faculty of Architecture und Civil Engineering, University of Wuppertal, Germany.
INTRAPORE GmbH, Advanced In Situ Groundwater Remediation, Essen, Leipzig, Mailand, Essen, Germany.
INTRAPORE GmbH, Advanced In Situ Groundwater Remediation, Essen, Leipzig, Mailand, Essen, Germany.
Korea Biochar Research Center, APRU Sustainable Waste Management, Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea.
United States Environmental Protection Agency, Center for Environmental Solutions & Emergency Response, Cincinnati, OH, USA.
Centre for Green Chemical Science, University of Auckland, Auckland, New Zealand.
The University of Auckland, School of Environment, Auckland, New Zealand.
Centre for Green Chemical Science, University of Auckland, Auckland, New Zealand.
Department of Agronomy, Kansas State University, Manhattan, Kansas, USA.
School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, People’s Republic of China.
Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong.
School of Environment, Tsinghua University, Beijing, People’s Republic of China.
Soil- and Groundwater-Management, Institute of Soil Engineering, Waste- and Water-Management, Faculty of Architecture und Civil Engineering, University of Wuppertal, Germany. Department of Environment, Energy and Geoinformatics, Sejong University, Seoul, South Korea.
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2021 (English)In: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 401, article id 123892Article in journal (Refereed) Published
Abstract [en]
Poly- and perfluoroalkyl substances (PFASs) are synthetic chemicals, which are introduced to the environment through anthropogenic activities. Aqueous film forming foam used in firefighting, wastewater effluent, landfill leachate, and biosolids are major sources of PFAS input to soil and groundwater. Remediation of PFAS contaminated solid and aqueous media is challenging, which is attributed to the chemical and thermal stability of PFAS and the complexity of PFAS mixtures. In this review, remediation of PFAS contaminated soils through manipulation of their bioavailability and destruction is presented. While the mobilizing amendments (e.g., surfactants) enhance the mobility and bioavailability of PFAS, the immobilizing amendments (e.g., activated carbon) decrease their bioavailability and mobility. Mobilizing amendments can be applied to facilitate the removal of PFAS though soil washing, phytoremediation, and complete destruction through thermal and chemical redox reactions. Immobilizing amendments are likely to reduce the transfer of PFAS to food chain through plant and biota (e.g., earthworm) uptake, and leaching to potable water sources. Future studies should focus on quantifying the potential leaching of the mobilized PFAS in the absence of removal by plant and biota uptake or soil washing, and regular monitoring of the long-term stability of the immobilized PFAS.
Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 401, article id 123892
Keywords [en]
PFAS, Aqueous firefighting foam, Soil remediation, Biosolids, Mobilization and immobilization
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-80760DOI: 10.1016/j.jhazmat.2020.123892ISI: 000581684900185PubMedID: 33113753Scopus ID: 2-s2.0-85091208238OAI: oai:DiVA.org:ltu-80760DiVA, id: diva2:1466353
Note
Validerad;2020;Nivå 2;2020-09-21 (alebob)
2020-09-112020-09-112021-02-04Bibliographically approved