The process of methane fermentation of stillage was described in this article. Also the rheological properties of stillage and digested sludge obtained on the anaerobic digestion process of stillage was presented. The ratio between the shear stress and viscosity to shear rate has allowed define the tested liquids and plot a flow curve and viscosity curve. Based on the obtained results the mathematical model describing the flow curves of the liquid was matched.
The process of methane fermentation of stillage was described in this article. Also the rheological properties of stillage and digested sludge obtained on the anaerobic digestion process of stillage was presented. The ratio between the shear stress and viscosity to shear rate has allowed define the tested liquids and plot a flow curve and viscosity curve. Based on the obtained results the mathematical model describing the flow curves of the liquid was matched.