Poly-Vinylidene Fluoride (PVDF)/ Span-85 Membrane for Omega-3 PUFA Concentration: Membrane Performance and Fouling Analysis

Abstract: For increasing the efficiency of omega-3 production, effect span-85 surfactant as a hydrophobic agent (0, 1, 2, 3 and 4 wt%) on formation porous structure in sub-layer PVDF membrane was studied. Also, cross-sectional morphology membranes analyzed using scanning electron microscopy (SEM) surface property evaluated contact angle test. The capacity to concentrate examined by filtration lantern fish oil. fouling caused oil evaluated. All tests were performed batch mode. Results SEM images demonstrated that addition resulted forming with denser more structure. 2 wt% increased concentration, while higher level showed negative effect. best 42.64 which obtained PVDF/2 span-85. This about 11% than control (0 wt%). Taken together, presence affected phase inversion process during formation, improved concentration. Moreover, cake formation. Keywords: Omega-3 PUFA, Poly-vinyldene fluoride (PVDF), Membranes performance, Span-85, Concentration, Fouling analysis.