Fig. 6

Parameter scan for the methane production in simulated granule. Parameter scan for the methane production in simulated granule with a varying initial number of methanogen cells (constant initial acidogen cell count) and b varying initial number of acidogen cells (constant initial methanogen cell count). Red color of the heatmap section has the highest value of methane produced (in milliliters of methane per gram of biomass), while blue heatmap section has the lowest value of produced methane. Parameter scan was conducted for 0.5 mm granule size and for the period of 650 simulation hours