Revue Nature et Technologie
Volume 12, Numéro 1, Pages 03-09
2020-01-31

Wastewater Purification By Nanofiltration Technology



Authors : Didi Mohamed Amine . Aoufi Boutheyna .

Abstract

The removal of two different heavy metals in aqueous solutions was investigated with polyamide nanofiltration membrane, the results show that the rejection of iron ions is total (100%). Depending of the experimental condition the retention of copper are varied from 82% to 94%.It was observed that the pH has no influence in the iron rejection. The rejection of ions by nanofiltration is done by Donnan effect (electrostatic repulsion) and counter-ion volume effect (steric exclusion).

Keywords

Nanofiltration, Extraction, Iron, Copper, membrane SNTE NF270-2540.

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