| Title: | On the Use of Permselectivity to Describe the Selective Transfer of Organic Acids in Electrodialysis |
| Author(s): | Caveriviere R; Galier S; Roux-de Balmann H; |
| Address: | "Laboratoire de Genie Chimique, Universite de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France" |
| DOI: | 10.3390/membranes13060545 |
| ISSN/ISBN: | 2077-0375 (Print) 2077-0375 (Electronic) 2077-0375 (Linking) |
| Abstract: | "The increasing number of investigations on the use of electrodialysis (ED) in bio-refinery requires a better understanding and tools to evaluate and describe the transfer of charged organic solutes. This study focuses, as an example, on the selective transfer of acetate, butyrate, and chloride (used as a reference), characterized by using permselectivity. It is shown that permselectivity between two anions does not depend on the total ion concentration, neither on the ion proportions, current intensity, or time nor on the presence of an additional compound. Therefore, it is demonstrated that permselectivity can be used to model the evolution of the stream composition during ED, even at high demineralization rates. Indeed, a very good agreement is found between experimental and calculated values. This study and the application of permselectivity as a tool, as developed in this paper, could be highly valuable for a wide range of applications in electrodialysis" |
| Keywords: | electrodialysis ion-exchange membrane permselectivity separation volatile fatty acids; |
| Notes: | "PubMed-not-MEDLINECaveriviere, Robin Galier, Sylvain Roux-de Balmann, Helene eng PhD funding for Robin Caveriviere/region Occitanie, France/ PhD funding Robin Caveriviere/National Polytechnic Institute of Toulouse/ Switzerland 2023/06/27 Membranes (Basel). 2023 May 23; 13(6):545. doi: 10.3390/membranes13060545" |
