Investigation of perfluoroalkyl carboxylic and sulfonic acids in leachates from industrial and municipal solid waste landfills, and their treated waters and effluents from their closest leachate treatment plants

Per- and polyfluoroalkyl substances (PFASs) are used in products, such as aqueous film-forming foam and fluorochemical surfactants, because of their high chemical stability. Although the use of perfluoroalkyl carboxylic acids (PFCAs) and perfluoroalkyl sulfonic acids (PFSAs) in PFASs has decreased b...

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Bibliographic Details
Published in:Journal of material cycles and waste management 2022, Vol.24 (1), p.287-296
Main Authors: Kameoka, Hiroshi, Ito, Koji, Ono, Junko, Banno, Arisa, Matsumura, Chisato, Haga, Yuki, Endo, Kazuto, Mizutani, Satoshi, Yabuki, Yoshinori
Format: Article
Language:English
Subjects:
Activated carbon
Carboxylic acids
Civil Engineering
Congeners
Disposal sites
Engineering
Environmental Management
Industrial wastes
Landfill
Landfills
Leachates
Membranes
Municipal landfills
Municipal solid waste
Municipal waste management
Original Article
Perfluoro compounds
Perfluoroalkyl & polyfluoroalkyl substances
Reverse osmosis
Solid waste management
Waste disposal
Waste disposal sites
Waste Management/Waste Technology
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Summary:Per- and polyfluoroalkyl substances (PFASs) are used in products, such as aqueous film-forming foam and fluorochemical surfactants, because of their high chemical stability. Although the use of perfluoroalkyl carboxylic acids (PFCAs) and perfluoroalkyl sulfonic acids (PFSAs) in PFASs has decreased because of replacement, many products containing them are landfilled. Determining accurate PFCA and PFSA concentrations of leachate from waste disposal sites is necessary, although reports on landfills are scarce, especially industrial waste landfills (IWLs). Little information about the fate of PFCAs and PFSAs during leachate treatment processes is available. Herein, the congener contributions of PFCAs and PFSAs in leachates of IWLs and municipal solid waste landfills (MSWLs) and changes in their concentrations before and after leachate treatment are reported. PFCA and PFSA concentrations in landfill leachates ranged from  C9) ones were rarely detected. Moreover, > 95% of these substances were removed in the activated carbon and reverse osmosis (RO) membrane treatments. These results suggest that activated carbon and RO membrane treatments effectively remove PFCAs and PFSAs from leachates.
ISSN:1438-4957
1611-8227
DOI:10.1007/s10163-021-01319-z