Batch Reactor Pyrolysis of Stabilized Sewage Sludge: Product Analysis and Sulphur Balance.

Moško, Jaroslav; Pohořelý, Michael; Skoblia, S.; Beňo, Z.; Bičáková, Olga; Václavková, Šárka; Šyc, Michal; Svoboda, Karel

doi:https://dx.doi.org/10.2495/WM180331

Number of the records: 1

Batch Reactor Pyrolysis of Stabilized Sewage Sludge: Product Analysis and Sulphur Balance.

1.

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, SAI}
Source 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

Number of the records: 1