Rheological properties of sieved beef-cattle manure slurry: Rheological model and effects of temperature and solids concentration

Abstract

Rheological properties of sieved beef-cattle manure slurries having total solids concentrations (TS) ranging from 2.6% to 19.3%, temperatures ranging from 14 to 64°C, and shear rates ranging from about 0·1 to 200 s⁻¹ were measured using a rotational viscometer. A rheological model was proposed and used to describe the slurries' shear stress and shear rate relationship. Equations relating the rheological parameters to the temperature and solids concentration were also obtained.