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Batch Reactor Pyrolysis of Stabilized Sewage Sludge: Product Analysis and Sulphur Balance.
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SYSNO ASEP 0501328 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Batch Reactor Pyrolysis of Stabilized Sewage Sludge: Product Analysis and Sulphur Balance. Author(s) Moško, Jaroslav (UCHP-M) RID, ORCID, SAI
Pohořelý, Michael (UCHP-M) RID, ORCID, SAI
Skoblia, S. (CZ)
Beňo, Z. (CZ)
Bičáková, Olga (USMH-B) RID, ORCID, SAI
Václavková, Šárka (UCHP-M) RID, ORCID, SAI
Šyc, Michal (UCHP-M) RID, SAI, ORCID
Svoboda, Karel (UCHP-M) RID, ORCID, SAISource Title Wit Transactions on Ecology and the Environment, Volume, 231. - Southampton : WIT Press, 2019 - ISBN N Pages s. 357-365 Number of pages 9 s. Publication form Online - E Action International Conference on Waste Management and the Environment /9./ Event date 17.09.2018 - 19.09.2018 VEvent location Seville Country ES - Spain Event type EUR Language eng - English Country GB - United Kingdom Keywords sewage sludge ; sludge-derived biochar ; pyrolysis ; mass balance Subject RIV JE - Non-nuclear Energetics, Energy Consumption ; Use OECD category Energy and fuels Subject RIV - cooperation Institute of Rock Structure and Mechanics - Biotechnology ; Bionics R&D Projects TH03020119 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) QK1820175 GA MZe - Ministry of Agriculture (MZe) Institutional support UCHP-M - RVO:67985858 ; USMH-B - RVO:67985891 EID SCOPUS 85062221021 DOI 10.2495/WM180331 Annotation Prior to sewage sludge application to agricultural soil, the sludge should be treated appropriately to suppress its negative features like content of microorganic pollutants or leaching heavy metals. Pyrolysis has been investigated as one way of producing sewage sludge-derived biochar (solid pyrolysis residue) which is stable and less toxic than sewage sludge. A significant amount of heat must be provided to the pyrolysis process due to its endothermic character. To make the process economically and energy efficient, the necessary heat can be obtained by the combustion of primary pyrolysis products (pyrolysis oil and gas), however in the case of sewage sludge, attention must be paid to the resulting gaseous pollutants due to high nitrogen and sulphur content. Slow pyrolysis of stabilized sewage sludge in inert helium atmosphere was performed at temperatures 400–800°C in order to examine the influence of pyrolysis temperature on the properties of pyrolysis products and sulphur
distribution amongst these products. Pyrolysis at higher temperatures resulted in lesser biochar yield and promoted gas yield. At temperatures of 500°C and higher, over 50% of energy bound in the input sewage sludge was transformed to liquid and gas products. Finally, the effect of pyrolysis temperature on sulphur distribution amongst pyrolysis products was only marginal.Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2019 Electronic address https://www.witpress.com/elibrary/wit-transactions-on-ecology-and-the-environment/231
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