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Removal of PFASs from sewage sludge by pyrolysis
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SYSNO ASEP 0558498 Document Type K - Proceedings Paper (Czech conf.) R&D Document Type The record was not marked in the RIV Title Removal of PFASs from sewage sludge by pyrolysis Author(s) Hušek, Matěj (UCHP-M) ORCID, RID, SAI Source Title Proceedings of Abstracts. - Prague : Institute of Chemical Process Fundamentals of the CAS, 2022 / Bendová M. ; Wagner Z. - ISBN 978-80-86186-24-5
S. 8-9Number of pages 2 s. Publication form Print - P Action Bažant Postgraduate Conference 2022 Event date 13.06.2022 - 14.06.2022 VEvent location Prague Country CZ - Czech Republic Event type CST Language eng - English Country CZ - Czech Republic Keywords sewage sludge samples ; pyrolysis ; temperature OECD category Energy and fuels R&D Projects QK21020022 GA MZe - Ministry of Agriculture (MZe) Institutional support UCHP-M - RVO:67985858 Annotation Our work aimed to describe PFASs behaviour at different pyrolysis temperatures (200 to 700 °C). We analysed 37 PFAS in sewage sludge samples and pyrolysis products. The temperature at which PFASs were removed from the sewage sludge at more than 99.0% was 400 °C, and at 600 °C, removal was more than 99.9%. As a result, it is recommended for commercial sludge pyrolysis units (larger volume, lower material homogeneity) that the process temperature be not lower than 600 °C. This recommendation is supported and demonstrated by the analyses of samples from the Bohuslavice Trutnov WWTP (CZE), where the sludge pyrolysis unit is in operation.
Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2023
Number of the records: 1