Figure 5From: Enzymatic monitoring and control of a two-phase batch digester leaching system with integrated anaerobic filterTime course of esterase activity during a stable process and occurrence of process disruption. (a) Time course of esterase activity of the effluent of the percolator. (b) Time course of the esterase activity of the biofilm in the percolator. Data points are arithmetic means of triplicates, while the error bars denote the standard deviation.Back to article page