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Dual Repurposing of End-of-Life BWRO Membranes: Ultrafiltration Membranes for Advanced Wastewater Treatment and Cation Exchange Membranes for Fungal Microbial Fuel Cells

Author name : Anissa Somrani
Publication Date : 2024-12-27
Journal Name : Membranes

Abstract

Abstract: The objective of this study is to evaluate the degradation of end-of-life BWRO
membranes sourced from a factory in France by analyzing their water permeability, roughness, and chemical composition in order to diagnose the level of degradation incurred
during their first life cycle in water softening. Following this, two new applications for
the end-of-life BWRO membranes were investigated: (i) as ultrafiltration membranes (UF)
for domestic effluent treatment and (ii) as cation exchange membranes (CEM) for use in
fungal microbial fuel cells (FMFC). The UF membrane was renovated with an acetic acid
treatment and, subsequently, used for domestic effluent filtration. The cation exchange
membrane was developed in two steps: (i) chlorine treatment and (ii) the deposition of an
Amer Sil layer, a functional coating formed by an interpenetrating polymer network (IPN)
made of sulfonated polyether sulfone (S-PES) in a cross-linked matrix of acrylic acid and
divinylbenzene.

Keywords

BW30-400; Cl2 attack; cation exchange membrane; ultrafiltration; fungal microbial fuel cell; recycling of SWE

Publication Link

https://doi.org/10.3390/ membranes15010005

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