Assessment of the main engineering parameters controlling the electrodialytic recovery of sodium propionate from aqueous solutions

Electrodialytic separation of levulinic acid catalytically synthesized from woody biomass for use in microbial conversion

“…In addition, decolorization of brown color in cedar‐derived LA solution was also observed (Supporting Information Figure S1). Finally, the energy consumption (0.18–0.22 kWh kg −1 ) were also similar to the values reported previously for lactate recovery (0.21–0.22 kWh kg −1 ) and propionate recovery (0.22–0.35 kWh kg −1 ) …”

“…Finally, the energy consumption (0.18-0.22 kWh kg 21 ) were also similar to the values reported previously for lactate recovery (0.21-0.22 kWh kg 21 ) 26 and propionate recovery (0.22-0.35 kWh kg 21 ). 27 Effect of ED application to cedar-derived LA solution on microbial utilization of LA After application of desalting ED to cedar-derived LA solution, LA medium C was prepared using the resultant LA solution and was used for both growth and LA consumption tests by Pseudomonas sp. LA18T.…”

Electrodialytic desalting of model concentrated NaCl brines as such or enriched with a non-electrolyte osmotic component

“…The Nernst-Planck approach, previously used to model the electrodialytic recovery of uni-or di-valent electrolytes [27][28][29][30][31], was employed to comply with the desalination of concentrated brines with an initial NaCl concentration ranging from 1.44 to 3.0 kmol m −3 , the latter being about double of that used previously [27], when using ancillary concentrating solutions at different initial salt contents in the range of 0.04-0.43 kmol m −3 . Also the effect of a non-electrolyte osmotic component (i.e., glucose) at an initial concentration of 0.85 kmol m −3 was easily described by accounting for its contribution on the osmotic pressure difference across any membrane, this parameter controlling water osmosis during ED desalting.…”

“…In this way, it was possible to reconstruct accurately the performance of an ED stack equipped with AMV and CMV membranes during the recovery of a target strong electrolyte (i.e., sodium chloride) up to a salt concentration of about 1.7 kmol m −3 when two identical model solutions containing from 0.21 to 0.74 kmol m −3 were initially used to fill the concentrating and diluting compartments [27]. Such a mathematical model and the related experimental strategy was subsequently validated by simulating the ED recovery of the sodium salts of some weak mono-or di-protic acids of microbial origin, that is acetic [28], propionic [29], lactic [30] or itaconic acid [31].…”

Extraction‐Fermentation Hybrid (Extractive Fermentation)

“…(2007), which also discussed additional types of EDs, including electrometathesis (EMT), electro-ion substitution (EIS), electro-electrodialysis (EED), electrodeionization (EDI), and two-phase electrodialysis (TPED). Various types of electrodialysis processes have been widely studied for the separation of carboxylic acids, including acetic, butyric, citric, formic, gluconic, itaconic, lactic, malic, propionic, pyruvic, succinic, and tartaric acids (Belafi-Bako et al ., 2004;Godjevargova et al ., 2004;Fidaleo et al ., 2005;Ferrer et al ., 2006;Fidaleo and Moresi, 2006;Groot 2011;Luo et al ., 2004;Strathmann 2004;Thang et al ., 2005;Wee et al ., 2005;Zelić and Vasić-Rački, 2005;Wang et al ., 2006;Wang et al ., 2011b;Zhang et al ., 2011). They have the advantage of producing free acid from salt without using acidifying chemicals.…”