PMID- 36502710 OWN - NLM STAT- MEDLINE DCOM- 20230117 LR - 20230117 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 328 DP - 2023 Feb 15 TI - Effects of perfluoroalkyl substances (PFAS) on antioxidant depletion from a high-density polyethylene geomembrane. PG - 116979 LID - S0301-4797(22)02552-X [pii] LID - 10.1016/j.jenvman.2022.116979 [doi] AB - To safely contain Per-and Polyfluoroalkyl substances (PFAS) in municipal solid waste landfills and contaminated soil monofills, it is necessary to understand how these substances interact with components of engineered systems designed to contain them. This paper examines the interaction between one of the most critical components of the system: a high-density polyethylene (HDPE) geomembrane. The same geomembrane is immersed in PFAS solution and synthetic municipal solid waste leachate containing PFAS for 2.5 years, and the effects of PFAS on antioxidant depletion time is examined. The geomembrane is incubated in ovens at 85-40 degrees C to obtain data for Arrhenius predictions at typical landfill temperatures. When exposed to PFAS solution alone, the antioxidant depletion times are smaller than when the same geomembrane is immersed in synthetic municipal solid waste leachate alone. The combination of the two has a synergistic effect which leads to an even greater reduction in antioxidant depletion time for this geomembrane, with results showing a 68% decrease in predicted antioxidant depletion time at a typical landfill temperature of 35 degrees C when PFAS is present in leachate. This study highlights the need to consider the potential impact of PFAS on the service life of geomembranes used to contain them. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Rowe, R Kerry AU - Rowe RK AD - Barrington Batchelor Distinguished University Professor and Canada Research Chair in Geotechnical and Geoenvironmental Engineering, GeoEngineering Centre at Queen's-RMC, Queen's University, Ellis Hall, Kingston, ON, K7L 3N6, Canada. Electronic address: kerry.rowe@queensu.ca. FAU - Somuah, M AU - Somuah M AD - GeoEngineering Centre at Queen's-RMC, Queen's University, Ellis Hall, Kingston, ON, K7L 3N6, Canada. Electronic address: michael.somuah@queensu.ca. LA - eng PT - Journal Article DEP - 20221208 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 9002-88-4 (Polyethylene) RN - 0 (Solid Waste) RN - 0 (Antioxidants) RN - 0 (Fluorocarbons) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Polyethylene MH - Solid Waste MH - *Refuse Disposal/methods MH - Antioxidants MH - Waste Disposal Facilities MH - *Fluorocarbons MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Antioxidants OT - Geomembranes OT - Geosynthetics OT - Landfills OT - PFAS OT - Service-life COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/12/13 06:00 MHDA- 2023/01/18 06:00 CRDT- 2022/12/12 08:47 PHST- 2022/10/11 00:00 [received] PHST- 2022/12/03 00:00 [revised] PHST- 2022/12/03 00:00 [accepted] PHST- 2022/12/13 06:00 [pubmed] PHST- 2023/01/18 06:00 [medline] PHST- 2022/12/12 08:47 [entrez] AID - S0301-4797(22)02552-X [pii] AID - 10.1016/j.jenvman.2022.116979 [doi] PST - ppublish SO - J Environ Manage. 2023 Feb 15;328:116979. doi: 10.1016/j.jenvman.2022.116979. Epub 2022 Dec 8.