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Biochemical methane potential of brewery wastes and co-digestion with glycerol

Beer production generates huge amounts of streams with high energetic potential. This work investigates the energetic valorization of the brewery wastes, trub (T) and spent grain (SG), by anaerobic digestion processes. T had a higher BMP (251±2 L CH4 kg-1 COD) than SG (191±3 L CH4 kg-1 COD). The methane yield (72±1%) and methane production rate (1.08±0.10 d-1) were also higher for T because of the recalcitrant ...