Research Papers by G. Dorange

1 - 7 of 7 results

Coupled model of film theory and the Nernst–Planck equation in nanofiltration A mathematical model is proposed as a contribution to the modelling of the concentration polarization phenomenon occurring during increasing transmembrane pressure in membrane processes. The developed model is based on the extended Nernst–Planck equation (to describe the transport in membrane pores) Desalination 206 (2007)
Nanofiltration process applied to the tannery solutions We propose in this study the effectiveness of an organic membrane Nanomax50 charged negatively on complex solution tanneries. Our choice was made on the solutions of tanning and liming of the tannery tawing of Rouïba/Algiers because of the nature of the substances which they contain, namely chromium Desalination 200 (2006)
Removal of copper from industrial effluent using a spiral wound module — film theory and hydrodynamic approach The problems involved in the environment for a surface treatment are especially at the level of water and even dangerous often toxic waste for the environment. The purpose of the surface treatments is to make acquire on metal or plastic surfaces new properties by a surface dressing of material. In t Desalination 200 (2006)
Softening of Hamma drinking water by nanofiltration and by lime in the presence of heavy metals The paper presents results of a study investigating softening by nanofiltration of the Hamma underground water resource. The Hamma wells supply the City of Constantine with hard drinking water containing calcium bicarbonate. The main parameters investigated were pressure, cross-flow velocity and wat Desalination 171 (2004)
Contribution to the comprehension of the calcium ions transfer phenomena through a nanofiltration spiral wound membrane A mathematical model is proposed to predict the transfer mechanism of calcium salts through a nanofiltration membrane. The model is a combination of Nernst-Planck and film theory equations and it is characterized by three transport parameters: solute permeability Ps, reflection coefficient σ and fil Desalination 167 (2004)
Dynamic modeling of mass transfer through a nanofiltration membrane using calcium salt in drinking water Mechanism specificity of ion separations in drinking water is necessary for the study of modeling transfer of calcium salt through nanofiltration membrane. In the present work, we have investigated a mathematical model which can specify the transfer phenomena of solute through a nanofiltration membr Desalination 152 (2002)
Elimination of nitrate ions in drinking waters by nanofiltration This study is focused on the influence of the nature of the water to be treated on the efficiency of nitrate elimination by a commercial membrane. By gradually increasing the complexity of the treated solutions (binary, ternary mixtures and then natural waters), we identified the physical, chemical Desalination 152 (2002)

Coupled model of film theory and the Nernst–Planck equation in nanofiltration

A mathematical model is proposed as a contribution to the modelling of the concentration polarization phenomenon occurring during increasing transmembrane pressure in membrane processes. The developed model is based on the extended Nernst–Planck equation (to describe the transport in membrane pores)

Desalination 206 (2007)

Nanofiltration process applied to the tannery solutions

We propose in this study the effectiveness of an organic membrane Nanomax50 charged negatively on complex solution tanneries. Our choice was made on the solutions of tanning and liming of the tannery tawing of Rouïba/Algiers because of the nature of the substances which they contain, namely chromium

Desalination 200 (2006)

Removal of copper from industrial effluent using a spiral wound module — film theory and hydrodynamic approach

The problems involved in the environment for a surface treatment are especially at the level of water and even dangerous often toxic waste for the environment. The purpose of the surface treatments is to make acquire on metal or plastic surfaces new properties by a surface dressing of material. In t

Desalination 200 (2006)

Softening of Hamma drinking water by nanofiltration and by lime in the presence of heavy metals

The paper presents results of a study investigating softening by nanofiltration of the Hamma underground water resource. The Hamma wells supply the City of Constantine with hard drinking water containing calcium bicarbonate. The main parameters investigated were pressure, cross-flow velocity and wat

Desalination 171 (2004)

Contribution to the comprehension of the calcium ions transfer phenomena through a nanofiltration spiral wound membrane

A mathematical model is proposed to predict the transfer mechanism of calcium salts through a nanofiltration membrane. The model is a combination of Nernst-Planck and film theory equations and it is characterized by three transport parameters: solute permeability Ps, reflection coefficient σ and fil

Desalination 167 (2004)

Dynamic modeling of mass transfer through a nanofiltration membrane using calcium salt in drinking water

Mechanism specificity of ion separations in drinking water is necessary for the study of modeling transfer of calcium salt through nanofiltration membrane. In the present work, we have investigated a mathematical model which can specify the transfer phenomena of solute through a nanofiltration membr

Desalination 152 (2002)

Elimination of nitrate ions in drinking waters by nanofiltration

This study is focused on the influence of the nature of the water to be treated on the efficiency of nitrate elimination by a commercial membrane. By gradually increasing the complexity of the treated solutions (binary, ternary mixtures and then natural waters), we identified the physical, chemical

Desalination 152 (2002)

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