Taking into account water use impacts in the LCA of biofuels: an Argentinean case study |
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Authors: | Mireille Faist Emmenegger Stephan Pfister Annette Koehler Luca de Giovanetti Alejandro Pablo Arena Rainer Zah |
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Institution: | 1.Technology and Society Lab,Empa,Dübendorf,Switzerland;2.Institute of Environmental Engineering,ETH Zurich,Zurich,Switzerland;3.Facultad Regional Mendoza,Universidad Tecnologica Nacional,Buenos Aires,Argentina |
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Abstract: | Purpose The assessment of biofuels has until now mainly focused on energy demand and greenhouse gas emissions. Only little attention
has been given to other impacts, although the general importance of water use for the life cycle assessment (LCA) of agricultural
products has been recognized in recent publications. The aim of this work is to assess in detail the water consumption along
a biofuel production chain taking into account irrigation efficiencies, levels of water scarcity, and type of feedstock, and
to integrate those results in a full LCA. Furthermore, we compare the results for biofuels from various feedstocks and regions
with conventional petrol. |
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