The simultaneous effect of different fluxes and enzymes in a membrane system containing cherry juice: membrane fouling assessment

Nowadays, diminishing fouling issue through membrane systems are one the biggest challenges in the industry. In this study, the simultaneous effect of two fluxes ۸.۶۲ and ۱۷.۲۴ L m-۲ h-۱ and two enzymes pectinase and protease on the fouling subject in the designed membrane system were analyzed. The results depicted that when the flux values rose two-fold (from ۸.۶۲ to ۱۷.۲۴ L m-۲ h-۱) the ratios of cake hydraulic resistance (RC) to total hydraulic resistance (Rt) were increased ۳۱% and ۱۰% for no-enzyme and with-enzyme streams, respectively. These rises were so severe in the ratios of pore-blockings (RC) to total resistances (Rt) with almost ۲۷% and ۱۰۸% for ۸.۶۲ and ۱۷.۲۴ L m-۲ h-۱ fluxes, respectively. Likewise, using enzymes caused a decrease in the RC/Rt ratios for about ۴۶% and ۵۴%, respectively. However, applying these enzymes led to a ۳.۴۵-fold and ۶.۲۸-fold rise when the flux was raised from ۸.۶۲ and ۱۷.۲۴ L m-۲ h-۱.

Keywords:

Cherry Juice , Membrane , Clarification , Fouling.