Coupling energy-production processes: The use of residues from bioethanol production to improve the anaerobic digestion of corn stover

Currently, industry is migrating towards sustainable practises, where the wastes produced in one process are used as feedstock for other productive purposes. In the present study, we show that a by-product from the fabrication of second-generation bioethanol can be used to improve the production of biogas from corn stover. The washing water generated during the pretreatment stage of bioethanol production was recovered and reused as a...