J.of Soc of Agri Struc, Japan.
Vol.26,No.3 December 1995,139-144
Original:
Language: English

Effects of Temperature and Solids Concentration on Rheological Properties of Dairy Manure Slurry

Kazutaka UMETSU, Hidehiko TAKAHATA and Andrew G. HASHIMOTO

ABSTRACT

    A single-spindle rotational viscometer with temperature control bath was used to study effects of termperature and solids concentrations on rheological properties of dairy manure slurry having total solids concentrations(TS) ranging from 2.79 to 10.82%, shear rates ranging from 0.065 to 17.10s-1 and temperature ranging from 5.0 to 42.5 centigrade. In this shear rate range, the power-law equation described the slurry's shear stress and shear rate relationship. Viscosity of the slurry decreased as temperature increased, and increased as TS increased. An equation to express the apparent viscosity as a function of TS and temperature was obtained.

Keywords: rheological properties, slurry, viscosity, dairy manure, temperature effect

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