Novel Concept of an Installation for Sustainable Thermal Utilization of Sewage Sludge

Wilhelm Jan Tic, Joanna Guziałowska-Tic, Halina Pawlak-Kruczek, Eugeniusz Woźnikowski, Adam Zadorożny, Łukasz Niedźwiecki, Mateusz Wnukowski, Krystian Krochmalny, Michał Czerep, Michał Ostrycharczyk, Marcin Baranowski, Jacek Zgóra and Mateusz Kowal
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Wilhelm Jan Tic: Department of Environmental Engineering, Opole University of Technology, 45-758 Opole, Poland
Joanna Guziałowska-Tic: Department of Environmental Engineering, Opole University of Technology, 45-758 Opole, Poland
Halina Pawlak-Kruczek: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Eugeniusz Woźnikowski: West Technology &Trading Polska Sp. z o.o., 45-641 Opole, Poland
Adam Zadorożny: West Technology &Trading Polska Sp. z o.o., 45-641 Opole, Poland
Łukasz Niedźwiecki: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Mateusz Wnukowski: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Krystian Krochmalny: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Michał Czerep: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Michał Ostrycharczyk: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Marcin Baranowski: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Jacek Zgóra: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland
Mateusz Kowal: Department of Boilers, Burners and Energy Systems, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland

Energies, 2018, vol. 11, issue 4, 1-17

Abstract: This study proposes an innovative installation concept for the sustainable utilization of sewage sludge. The aim of the study is to prove that existing devices and technologies allow construction of such an installation by integration of a dryer, torrefaction reactor and gasifier with engine, thus maximizing recovery of the waste heat by the installation. This study also presents the results of drying tests, performed at a commercial scale paddle dryer as well as detailed analysis of the torrefaction process of dried sewage sludge. Both tests aim to identify potential problems that could occur during the operation. The scarce literature studies published so far on the torrefaction of sewage sludge presents results from batch reactors, thus giving very limited data of the composition of the torgas. This study aims to cover that gap by presenting results from the torrefaction of sewage sludge in a continuously working, laboratory scale, isothermal rotary reactor. The study confirmed the feasibility of a self-sustaining installation of thermal utilization of sewage sludge using low quality heat. Performed study pointed out the most favorable way to use limited amounts of high temperature heat. Plasma gasification of the torrefied sewage sludge has been identified that requires further studies.

Keywords: sewage sludge; torrefaction; gasification; drying; sustainability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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