초록
<P><B>Abstract</B></P> <P>The potential of Forward Osmosis (FO) technology to up-concentrate succinic acid (HSuc), lactic acid (HLac), and ethanol (Eth) from fermentation broths was investigated. The aforementioned molecules were obtained from two residual resources (biopulp and algal biomass) <I>via</I> anaerobic fermentation. HLac and Eth were produced from biopulp and HSuc was produced from macroalgal biomass hydrolysate. Herein, HLac, Eth, and HSuc titers of 14.98 ± 0.76, 19.11 ± 0.51 and 38.8 ± 0.32 g L<SUP>−1</SUP> were obtained respectively. After treatment with centrifugation, FO was applied to the treated broths using a thin film composite hollow fibre (TFHF) membrane. Best results were obtained with the HSuc fermentation broth using NaCl 5.0 M as draw solution. Final HSuc titer of 186.7 ± 9.3 g L<SUP>−1</SUP> and water removal of 85% were attained. Findings in this work highlight a novel application of TFHF membranes.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Succinic acid, lactic acid, and ethanol were produced from residual resources. </LI> <LI> Forward osmosis was examined to up-concentrate fermentation products. </LI> <LI> Succinic acid concentration factor of 5.0 was achieved. </LI> <LI> Best results were obtained with NaCl 5.0 M as draw solution. </LI> <LI> Water removals of up to 85% were attained. </LI> </UL> </P>