Environmental Performance of Semi-Aerobic Landfill by Means of Life Cycle Assessment Modeling

Anna Mazzi (), Michela Sciarrone and Roberto Raga
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Anna Mazzi: Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy
Michela Sciarrone: Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy
Roberto Raga: Department of Civil, Environmental and Architectural Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy

Energies, 2022, vol. 15, issue 17, 1-17

Abstract: The potential impacts and the environmental performance of the semi-aerobic landfill technology were assessed through the Life Cycle Assessment (LCA) methodology. Project data that referred to a hypothetical Italian plant design were used and ISO 14040/14044 standards were applied. All the life cycle phases were considered, from landfill construction to filling, aftercare, closure and conversion for future use. All the landfill processes and the inflow of materials, energy and rainwater, and the outflow of biogas and leachate, were included in the system boundaries. The results show that the overall environmental impacts associated to semi-aerobic landfill are primarily due to the filling and aftercare phases, but the impacts related to construction and closure phases are not negligible. The contribution analysis underlines the processes with major responsibility within the environmental profile, while the normalization of results demonstrates what are the environmental categories on which the landfill impacts fall most. Important lessons emerging from this research can support practitioners and scientists in optimizing semi-aerobic landfill design and management.

Keywords: semi-aerobic landfill; life cycle assessment; impact assessment results; ISO 14040-14044 (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: 2022
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