Nanofiltration of NaCl solutions using a SPPO membrane (BQ01) Part 2. Membrane behavior with an electric field

Noël, Isabelle M.; Lebrun, Rémi E.; Bouchard, Christian

doi:10.1016/s0011-9164(03)00302-3

Cited by 2 publications

(1 citation statement)

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“…The smallest electric potential of 1.33 × 10 4 V·m −1 was sufficient to establish the polymer conformation, which explains the absence of significant variations with magnitude. The possibility of controlling pore size by an external force like an electric field represents an interesting opening in the field of NF and deserves further investigation [54].…”

Section: Nanofiltrationmentioning

confidence: 99%

Electrically and Electrochemically Assisted Nanofiltration: A Promising Approach for Fouling Mitigation

Geng¹,

Chen²

2018

Nanofiltration

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Membrane fouling is regarded as the most critical bottleneck for the widespread application of membrane separation technology. The application of electricity to the surface of membrane provides a promising alternative for fouling mitigation, which may involve the following effects such as electrophoresis, electroosmosis, and electrooxidation. Electrophoresis and electroosmosis influence the movement of charged species (ions or molecules) or movement of fluid adjacent to charged surface under the applied electric field, while electrooxidation functions by degrading species accumulated in the concentration polarization layer and fouling layer to resume permeate flux. Different membrane modules have been developed to satisfy the requirement of electrode assembly. Meanwhile, this coupled process also promotes the development of stable and conductive electrodes including membrane electrodes. Successful applications have been found in the areas of ion separation and treatment of dye wastewater, arsenic contaminated wastewater, antibiotic contaminated wastewater, etc. Compared with microfiltration (MF) and ultrafiltration (UF), existing research in the nanofiltration (NF) is still limited. The increasing applications of NF in practice because of its unique separation capability will definitely trigger more investigations on this electrically or electrochemically combined antifouling technique.

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Section: Nanofiltrationmentioning

confidence: 99%