Extraction Kinetics of As(V) by Aliquat-336 Using Asymmetric PVDF Hollow-Fiber Membrane Contactors
Said Bey,
Hassina Semghouni,
Alessandra Criscuoli,
Mohamed Benamor,
Enrico Drioli,
Alberto Figoli
Affiliations
Said Bey
Laboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, Université de Bejaia, Béjaïa 06000, Algérie
Hassina Semghouni
Institute on Membrane Technology (ITM-CNR), Via P.Bucci 17/C, 87030 Rende (CS), Italy
Alessandra Criscuoli
Institute on Membrane Technology (ITM-CNR), Via P.Bucci 17/C, 87030 Rende (CS), Italy
Mohamed Benamor
Laboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, Université de Bejaia, Béjaïa 06000, Algérie
Enrico Drioli
Institute on Membrane Technology (ITM-CNR), Via P.Bucci 17/C, 87030 Rende (CS), Italy
Alberto Figoli
Institute on Membrane Technology (ITM-CNR), Via P.Bucci 17/C, 87030 Rende (CS), Italy
This work focuses on the study of the mass transfer of arsenic(V) through asymmetric polyvinylidene fluoride hollow-fiber membrane contactors using Aliquat-336 as an extractant. In the first part of this work, the fibers were prepared and characterized by SEM and by determining their thickness and porosity. From SEM pictures, an asymmetric structure was obtained that was characterized by an inner sponge-like structure and outer finger-like structure with a pore radius and porosity about 0.11 µm and 80%, respectively. In the second part, the prepared fibers were used as membrane contactors for the study of mass transfer of arsenic(V), investigating the effect of several parameters such as pH, temperature, and initial concentration of the feed. The overall mass transfer coefficient of As(V) was around 6 × 10–6 cm/s.
