A comprehensive study for characteristics, acidogenic fermentation, and anaerobic digestion of source separated organics

Food waste biorefinery: Stability of an acidogenic fermentation system with carbon dioxide sequestration and electricity generation

“…Anaerobic conversion, particularly dark fermentation (DF), has been suggested as an appropriate bioconversion path for FW (Ortigueira et al, 2019a) as it is able to convert carbohydrates into hydrogen (H 2 or, when produced through the DF process, bioH 2 ), while achieving productivity values of more than 1 m 3 h ¡1 m À3 (Ren et al, 2011). Simultaneously, DF generates organic acids and sludge for which valorisation solutions such as the conversion to bioplastic precursors and the maturation to a nutrient-rich compost, respectively, are well-established (Bazyar Lakeh et al, 2019). Hydrogen is an energy carrier with a high energy content (120 MJ kg À1 ), which can be efficiently converted into electricity through the use of proton-exchange membrane fuel cells (PEMFC).…”