In this paper, the effect of transmembarne pressure (TMP) at levels of 1, 1.75 & 2.5 bar, process
temperature (T) at levels of 30 & 60oC and operation time (t) at levels of 15, 30, 45 & 60 minute on
the permeate flux, sugar rejection, non-sugar rejection and fouling as membrane performance indexes
investigated. Membrane system used in this research was ceramic tubular module and it had effective
area and average pore diameter of 0.28 m2 and 0.2 μm, respectively. The results showed that the
permeate flux at each levels of TMP and T decreased with increasing operation time. Increasing TMP
at T=30oC led to decreasing the JP, but for T=60oC, the JP increased with increasing TMP. However,
the flux values for T=30oC was higher than T=60oC at all TMP levels. In this research, it also observed
that the fouling values at T=60oC were greater as compared to T=30oC at all TMP levels. Furthermore,
in the best operation condition, the sugar and non-sugar rejections obtained -30% and 65%,
respectively.
Keywords: Sugar beet, raw juice, microfiltration, flux, fouling, rejection |
