Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Environmental comparison of banana waste valorisation strategies under a biorefinery approach

Beatriz Santiago, Marı́a Teresa Moreira, Gumersindo Feijóo, Sara González‐García

Waste Management · 2022

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Summary

Banana wastes can be valorised in bioethanol due to its high content in cellulose (more than 30% of total on a dry basis) and hemicelluloses (25% of total). Large amount of these wastes is generated during the banana cultivation and harvesting stage. This study proposes the use of, beside conventional acid sulphuric, different organic acids (tartaric, oxalic and citric) during acid pretreatment step, to suppress the unwanted compounds formation and improve bioethanol production. Instead, bioethanol production generates a solid waste flow that is managed in an anaerobic digestion plant, obtaining biogas, to be converted into energy, and digestate, considered as a potential biofertiliser. Life cycle assessment methodology is used to analyse the environmental profiles of four valorisation sce

Subject
Other / interdisciplinary
Source type
Peer-reviewed study
System type
Other
DOI
10.1016/j.wasman.2022.02.005
Catalogue ID
SNmp2b2w55-2ucovx
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