Abstract
Pilot scale filtration of date paste-water suspensions at three concentrations, namely, 1:1.5, 1:2, and 1:3 date paste to water ratios (w:w) were carried out at constant filtration pressures of 101.35 and 202.70 kPa (gauge). Two relevant mathematical models from published works on filtration of food systems were slightly modified to account for the non-Newtonian behavior of date paste-water filtrates and the filtration system used. Filtration parameters were statistically determined using pilot scale experimental data and the two modified filtration models. Both models were adequate in describing the filtration behavior, however one of the models is physically more sound as it includes some of the important physical properties of suspension, filtrate, and cake.