Biomass fuel production from cellulosic sludge through biodrying Aeration strategies, quality of end-products, gaseous emissions and techno-economic assessment

Biomass fuel production from cellulosic sludge through biodrying : Aeration strategies, quality of end-products, gaseous emissions and techno-economic assessment

Copyright © 2021. Published by Elsevier Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 126(2021) vom: 01. Mai, Seite 487-496
1. Verfasser: Guerra-Gorostegi, N (VerfasserIn)
Weitere Verfasser: González, D, Puyuelo, B, Ovejero, J, Colón, J, Gabriel, D, Sánchez, A, Ponsá, S
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Aeration strategies Biodrying Cellulosic sludge Gaseous emissions Techno-economic analysis Gases Sewage
Beschreibung
Zusammenfassung:Copyright © 2021. Published by Elsevier Ltd.
This study assesses the technological, environmental and economic feasibility of biodrying to valorise cellulosic sludge as a renewable energy source. Specifically, three different aeration strategies were compared in terms of biodrying performance, energetic consumption, gaseous emissions, quality of end-products and techno-economic analysis. These strategies were based on different combinations of convective drying with biogenic heat produced. Two innovative biodrying performance indicators (Energetic Biodrying Index and Biodrying Performance Index) were proposed to better assess the initial and operational conditions that favour the maximum energy process efficiency and the highest end-product quality. The end-products obtained consistently presented moisture contents below 40% and lower heating values above 9.4 MJ·kg-1. However, the best values achieved were 32.6% and 10.4 MJ·kg-1 for moisture content and lower heating value, respectively. Low N2O and CH4 emissions confirmed the effective aeration of all three strategies carried out, while NH4 and tVOCs were related either to temperature or biological phenomena. A techno-economic analysis proved the economic viability and attractiveness of the biodrying technology for cellulosic sludge in all the strategies applied
Beschreibung:Date Completed 25.05.2021
Date Revised 25.05.2021
published: Print-Electronic
Citation Status MEDLINE
ISSN:1879-2456
DOI:10.1016/j.wasman.2021.03.036