Evaluation of nanofiltration for the purification of an organic acid fermentation broth

Antoine Bouchoux (1) , Florence Lutin , Hélène Roux-de Balmann (1)

1 LGC - Laboratoire de Génie Chimique

This study focuses on a possible elimination of glucose from a sodium lactate fermentation broth by nanofiltration (NF). The results obtained with single-solute solutions indicate that glucose is clearly more retained that sodium lactate. Nevertheless, glucose retention strongly decreases when the two solutes are present in the same solution and the separation becomes unachievable. Such a incidence of a solute on another in NF has rarely been reported before.

Mots clés: Membrane processes; Nanofiltration; Organic acids; selectivity; Mass transfer mechanisms

Domaines: Génie des procédés; Génie chimique

Antoine Bouchoux, Florence Lutin, Hélène Roux-de Balmann. Evaluation of nanofiltration for the purification of an organic acid fermentation broth. Separation and Purification Technology, 2006, 52 (2), pp.266-273. ⟨hal-03595526⟩