Figure 1From: Techno-economic evaluation of stillage treatment with anaerobic digestion in a softwood-to-ethanol processOverall process scheme for the proposed ethanol plant in the reference case. Part of the evaporation condensate, together with the condensed flash streams originating from pretreatment and drying, is anaerobically digested followed by an aerobic treatment step. Mat: material; SSF: simultaneous saccharification and fermentation.Back to article page