Micellar enhanced ultrafiltration for the valorization of phenolic compounds and polysaccharides from winery wastewaters
作者： Rafaela P. Rodrigues , Licínio M. Gando-Ferreira , Margarida J. Quina
DOI: 10.1016/J.JWPE.2020.101565
关键词: Polyphenol 、 Chemistry 、 Pulmonary surfactant 、 Fouling 、 Membrane 、 Ultrafiltration 、 Polysaccharide 、 Matrix (chemical analysis) 、 Critical micelle concentration 、 Chromatography
摘要: Abstract In this work, the efficiency of Micellar Enhanced Ultrafiltration (MEUF) was evaluated for recovery polyphenols and polysaccharides from winery wastewaters (WW), using a cationic surfactant (Esterquat). Firstly, critical micellar concentration (CMC) Esterquat determined at three pH levels membrane characterized. Besides, effect several operating variables (surfactant concentration, solution pH, complexity solution, concentration) on rejection percentages (R) investigated, as well understanding fouling mechanism dependent pH. The highest obtained 5.5 CMC. Regarding influence initial it observed that permeate flux decreases significantly with increase value. From fitting classical Hermia’s models to experimental data against time, found is characterized by complete pore blocking all tested values. increased up 5.0 but higher values lower R-value achieved. matrix separation between phenolic compounds polysaccharides. Moreover, low solute favored (R = 78.1 %) 19.5 separation. Finally, MEUF real WW optimal conditions previously determined. % whereas 47.3 promising method valorization, namely
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