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Fig. 1 | Biotechnology for Biofuels

Fig. 1

From: Effluent solids recirculation to municipal sludge digesters enhances long-chain fatty acids degradation capacity

Fig. 1

Daily biogas production in digesters R1–R6 (a, b). (1) Start-up phase, (2) semi-continuous oleate feeding, (3) oleate pulse feeding, and (4) end of PASS and oleate feeding. Daily biogas production associated with oleate degradation, based on differences in daily biogas production between oleate-amended and control digesters R2 and R1 (c), R5 and R4 (d), R3 and R1 (e), and R6 and R4 (f). Theoretical biogas production (red line) was calculated as 1532 ml from 1 g oleate based on the Buswell equation [39]

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