Easy Removal of Methylparaben and Propylparaben from Aqueous Solution Using Nonionic Micellar System

Safia Habbal (1) , Boumediene Haddou (1) , Jean-Paul Canselier (2) , Christophe Gourdon (2)

1 Laboratoire Physique-Chimie des Matériaux Catalyse et Environnement - LPCME (Oran, Algérie)
2 LGC - Laboratoire de Génie Chimique

This study aimed to investigate the simultaneous removal of methylparaben (MePB) and propylparaben (PrPB) from effluents (each one at 16 mg/L) using a nonionic micellar system containing Triton X-114. Response surface methodology (RSM) has been carried out. Extraction results using nonionic surfactant two-phase system were considered as a function of surfactant concentration and temperature variation. Four responses were investigated: MePB and PrPB extraction yield (E), solute (Xs,w) and surfactant (Xsf,w) concentrations in the aqueous phase and the volume fraction of micellar phase (ϕC) at equilibrium. Very high extraction efficiencies (99 % for PrPB and 84 % for MePB) were achieved at optimal conditions. Thereby, the amounts of PrPB and MePB were reduced 80 and 5 times, respectively. The extraction improvement using sodium sulfate was also shown. Finally, the solute stripping from micellar phase by pH change was proved.

Mots clés: Non-ionic surfactant; Response surface methodology; Extraction; Propylparaben; Methylparaben

Domaines: Génie chimique; Génie des procédés

Safia Habbal, Boumediene Haddou, Jean-Paul Canselier, Christophe Gourdon. Easy Removal of Methylparaben and Propylparaben from Aqueous Solution Using Nonionic Micellar System. Tenside Surfactants Detergents, 2019, 56 (2), pp.112-118. ⟨10.3139/113.110611⟩. ⟨hal-02330481⟩