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Membranes 2018, 8(3), 53; https://doi.org/10.3390/membranes8030053

Extraction Kinetics of As(V) by Aliquat-336 Using Asymmetric PVDF Hollow-Fiber Membrane Contactors

1
Laboratoire des Procédés Membranaires et des Techniques de Séparation et de Récupération, Faculté de Technologie, Université de Bejaia, Béjaïa 06000, Algérie
2
Institute on Membrane Technology (ITM-CNR), Via P.Bucci 17/C, 87030 Rende (CS), Italy
*
Authors to whom correspondence should be addressed.
Received: 23 June 2018 / Revised: 19 July 2018 / Accepted: 24 July 2018 / Published: 2 August 2018
(This article belongs to the Special Issue Advances in Liquid Membrane-Based Separation)
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Abstract

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. View Full-Text
Keywords: As(V); membrane contactor; Aliquat-336 As(V); membrane contactor; Aliquat-336
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Bey, S.; Semghouni, H.; Criscuoli, A.; Benamor, M.; Drioli, E.; Figoli, A. Extraction Kinetics of As(V) by Aliquat-336 Using Asymmetric PVDF Hollow-Fiber Membrane Contactors. Membranes 2018, 8, 53.

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