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Effect of pyrolysis temperature on removal of organic pollutants present in anaerobically stabilized sewage sludge.
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SYSNO ASEP 0534975 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of pyrolysis temperature on removal of organic pollutants present in anaerobically stabilized sewage sludge. Author(s) Moško, Jaroslav (UCHP-M) RID, ORCID, SAI
Pohořelý, Michael (UCHP-M) RID, ORCID, SAI
Cajthaml, Tomáš (MBU-M) RID, ORCID
Jeremiáš, Michal (UFP-V) ORCID
Robles-Aguilar, A.A. (BE)
Skoblia, S. (CZ)
Beňo, Z. (CZ)
Innemanová, P. (CZ)
Linhartová, Lucie (MBU-M) RID, ORCID
Michalíková, Klára (MBU-M) ORCID
Meers, E. (BE)Article number 129082 Source Title Chemosphere. - : Elsevier - ISSN 0045-6535
Roč. 265, FEB 2021 (2021)Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords sludge-char ; polychlorinated biphenyls ; polycyclic aromatic hydrocarbons Subject RIV JE - Non-nuclear Energetics, Energy Consumption ; Use OECD category Energy and fuels Subject RIV - cooperation Institute of Microbiology - Biotechnology ; Bionics
Institute of Plasma Physics - Non-nuclear Energetics, Energy Consumption ; UseR&D Projects QK1820175 GA MZe - Ministry of Agriculture (MZe) Method of publishing Open access with time embargo (01.03.2023) Institutional support UCHP-M - RVO:67985858 ; MBU-M - RVO:61388971 ; UFP-V - RVO:61389021 UT WOS 000603465000063 EID SCOPUS 85097795364 DOI 10.1016/j.chemosphere.2020.129082 Annotation Sewage sludge was excluded from the list of component materials for the production of EU fertilizing products and it was banned as feedstock to produce pyrolysis & gasification materials in European Commission’s technical proposals for selected new fertilizing materials under the Regulation 2019/1009 (STRUBIAS report). This exclusion of pyrolysis as a viable way to treat sewage sludge was mainly due to the lack of data on the fate of organic pollutants at pyrolysis conditions. In this work, we are addressing this knowledge gap. We studied slow pyrolysis as a potential process to efficiently treat organic pollutants present in stabilized sewage sludge. Sewage sludge was pyrolyzed in a quartz fixed bed reactor at temperatures of 400–800 °C for 2 h and the sludge and resulting sludge-chars were analyzed for the presence of four groups of organic pollutants, namely (i) polychlorinated biphenyls (PCBs), (ii) polycyclic aromatic hydrocarbons (PAHs), (iii) pharmaceuticals, and (iv) endocrine-disrupting and hormonal compounds. Pyrolysis at ≥ 400 °C effectively removed pharmaceuticals (group iii) to below detection limits, whereas pyrolysis at temperatures higher than 600 °C was required to remove more than 99.8% of the compounds from groups i, ii and iv. Based on these findings, we propose, that high temperature (>600 °C) slow pyrolysis can satisfactory remove organic pollutants from the resulting sludge-char, which could be safely applied as soil improver. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0314410
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