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SILICONE MEMBRANE CONTACTOR FOR SELECTIVE VOLATILE FATTY ACID AND ALCOHOL SEPARATION
Chemical engineering research & design
The effect of pH and extraction temperature on flux, recovery, mass transfer coefficient and separation factor of volatile fatty acids (VFAs) and alcohols from synthetic solutions and cheese whey fermentate was investigated using a silicone membrane contactor with water as extractant. The silicone membrane allowed extraction of undissociated acids only, resulting in substantially higher recovery efficiencies at pH 3 than at pH 5. Furthermore, the non-porous silicone membrane favoured extractiondoi:10.1016/j.psep.2020.09.052 fatcat:femzr2gt6fgidj6d6bgsg3twn4