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Waste incineration of Polytetrafluoroethylene (PTFE) to evaluate potential formation of per- and Poly-Fluorinated Alkyl Substances (PFAS) in flue gas

Aleksandrov, Krasimir; Gehrmann, Hans-Joachim; Hauser, Manuela; Mätzing, Hartmut; Pigeon, D.; Stapf, Dieter; Wexler, Manuela

n recent years, concerns over some per- and polyfluorinated alkyl substances (PFAS) have grown steadily. PFAS are a large group of chemical substances with widely differing properties. While one class of PFAS, fluoropolymers, have been demonstrated to meet the OECD criteria for polymers of low concern during the in use phase of their lifecycle, questions remain regarding waste handling at the end of useful life for products containing fluoropolymers. To show that polytetrafluoroethylene (PTFE) can be almost fully transformed into fluorine (F) (as hydrofluoric acid (HF)) and to study the possible generation of low molecular weight per- and polyfluorinated alkyl substances (PFAS), PTFE combustion under typical waste incineration conditions at the BRENDA (German acronym for “Brennkammer mit Dampfkessel”) pilot plant at Karlsruhe Institute of Technology (KIT) was investigated. Results indicate that, within procedural quantitation limits, no statistically significant evidence was found that the PFAS studied were created during the incineration of PTFE. Therefore, municipal incineration of PTFE using best available technologies (BAT) is not a significant source of the studied PFAS and should be considered an acceptable form of waste treatment.

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Verlagsausgabe §
DOI: 10.5445/IR/1000094677
Veröffentlicht am 05.06.2019
Zugehörige Institution(en) am KIT Institut für Technische Chemie (ITC)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 0045-6535, 1879-1298
KITopen-ID: 1000094677
HGF-Programm 34.11.01 (POF III, LK 01)
Erschienen in Chemosphere
Band 226
Seiten 898-906
Schlagworte PFAS, Polytetrafluoroethylene, Waste incineration, Flue gas sampling, Paired t-test, PFOA/PFOS
Nachgewiesen in Web of Science
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