| Title | Energy and environmental assessment of residual bio-wastes management strategies |
|---|---|
| ID_Doc | 26533 |
| Authors | Cusenza, MA; Longo, S; Guarino, F; Cellura, M |
| Title | Energy and environmental assessment of residual bio-wastes management strategies |
| Year | 2021 |
| Published | |
| Abstract | This paper assesses the potential energy and environmental impacts of an anaerobic digester coupled with a combined heat and power plant powered with bio-wastes from the agri-food sector. The analysis is carried out through the Life Cycle Assessment methodology following a "cradle-to-grave" approach and is based mostly on primary data. The anaerobic digester - combined heat and power plant is analysed considering a twofold perspective: one more energy - oriented where the main function of the system is to generate renewable electricity and a waste - oriented one in which the main function is treating bio-wastes. In addition, the environmental indirect effects related to potential competitive uses of bio-wastes are evaluated. Biomass transport and the electricity consumed during the operation phase make the largest contribution (higher than 60%) to almost all the impact categories examined. The comparison with the electricity eco-profile from the national grid and with a composting facility highlights that the anaerobic digester - combined heat and power system may reach better energy and environmental performances for both the electricity generation and bio-waste management. (C) 2020 Elsevier Ltd. All rights reserved. |
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