Numerical Ways to Characterize the Deterioration of Nanofiltration Membranes

In this study, a transport model is used to characterize structural and physico-chemical changes in a nanofiltration membrane during the filtration of ionic mixtures. The membrane state is analyzed by a set of four model parameters identified from glucose and salts filtration: the membrane water permeability (Lp), the mean pore radius (rp), the membrane charge density (Xd), and the dielectric constant of the solution inside pores (ep). The study of these structural and physico-chemical properties allows us to determine if deterioration or fouling occurred during filtration. Two distinct identification procedures from filtration of synthetic solutions are investigated in this paper. One is based on the filtration of single salt solutions, whereas the other lies in parameters identification from mixtures containing at least three ions. These methods are applied here to characterize influence of fouling deposit formation and membrane cleaning

Optimisation of radiant-convective drying of a porous medium by design of experiments methodology

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Curing of composites by radiation and natural convection in an autoclave

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Transfer of charged molecules through nanofiltration membranes: a model combining transport through pores and polarization layer

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Optimisation of radiant-convective drying of a porous medium by design of experiments methodology

International audienc

Optimization of Radiant-Convective Drying of a Porous Medium by Design of Experiment Methodology

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Transport of salt mixtures through nanofiltration membranes: identification of electric and dielectric contributions

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Transfer of ionic solutes through nanofiltration membranes : a model combining polarization layer and pores transport

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