ANALYSIS OF THE FOULING MECHANISM IN MICROFILTRATION OF ORANGE JUICE

摘要: The purpose of this work is theoretical and experimental evaluation fouling effects on flux performance in clarification freshly squeezed orange juice by cross-flow microfiltration. To identify optimum operating conditions to minimize effects, was microfiltered a laboratory scale plant varying axial velocity transmembrane pressure difference. observed decay modeled using modified form the differential equation used describe classical dead-end filtration processes. mechanism during microfiltration identified estimation model parameters according nonlinear regression optimization procedure. Analysis results revealed that separation process controlled cake as fed at relatively low (i.e., Re = 5000) system operated In these permeate decays within first 20-30 min gradually achieve limit value. At higher Reynolds number (Re 15,000), an increase applied from 0.3 1 bar) allows factor about 4. complete pore blocking mechanism, becomes approximately invariant with respect time, negligible may be observed. Evaluation specific energy consumption involved reported.