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1 Polish Journal of Chemical Technology

1 2014

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Separation and concentration of succinic adic from multicomponent aqueous solutions by nanofi ltration technique

Antczak J., Regiec J., Prochaska K.

Polish Journal of Chemical Technology

2014

Vol. 16, nr 2

1--4

This paper applies the determined suitability of nanofi ltration (NF) membrane separation for selective isolation and concentration of succinic acid from aqueous solutions which are post-fermentation multicomponent fl uids. The study analyzed the infl uence of concentration and the pH of the separated solutions on the effi ciency and selectivity of NF process that runs in a module equipped with a ceramic membrane. Moreover, the effect of applied transmembrane pressure on the retention of succinic acid and sodium succinate has been studied. The investigations have shown that in the used NF module the retention of succinic acid salt is equal almost 50% in the case of a three-component model solution, although the degree of retention depends on both the transmembrane pressure and the initial concentration of separated salt.