Selection of Tubular Membrane Separation based on the Resistance Performance

: Processing of fruits (such as pink guava) to produce fruit juices results in high amount of waste materials that still contain valuable by-products (e.g. antioxidants or polyphenols). Analysis of hydrodynamic resistances that considers gel layer formation as the main fouling mechanism and permeate flux decline was studied. Using tubular membrane FP 100 and ES 404 performed the experiments, with a molecular weight cut-off of 100 kDa and 4 kDa respectively. Results showed that the permeate fluxes for both of the membranes increased by increasing the Trans Membrane Pressure (TMP) and it would decrease with time. All of the resistances increased with TMP meanwhile the mass transfer of polyphenols did not affect the TMP. All the TMP resulted in similar fouling values for both membranes.