Neda Rahaei - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran
Ali Hashemi - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran
Soroush Azizi - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran
Monire Moslemi - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran
Mosayeb Mohammadi - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran
Farshid Pajoum Shariati - Chemical Engineering Department, Islamic Azad University, Science and Research branch of Tehran, Iran

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.

Cherry Juice, Membrane, Clarification, Fouling.