Fig. 4From: Microbial population dynamics during long-term sludge adaptation of thermophilic and mesophilic sequencing batch digesters treating sewage fine sieved fraction at varying organic loading ratesSpecific methanogenic activity (SMA) conducted during recovery of the mesophilic digester at OLR of 2.5 kg COD/(m3 day) (a, b, c) and of the thermophilic digester as comparison (d) at OLR of 5.5 kg COD/(m3 day)Back to article page