Figure 2

Co-digestion efficiency of mixed wastewater versus the weighted efficiencies of the corresponding combined mono-digested samples with respect to the identity line (Y = X, dotted red line) for the co-digestion reactors during the 4 cycles after acclimation: R3 (75% CWW & 25% PSW), R4 (25% CWW & 75% PSW) and R5 (50% CWW & 50% PSW).