Separation of Lanthanides(iii) by Nanofiltration-Complexation in Aqueous Medium

Polyaminocarboxylic acids rejection by charged nanofiltration membrane

“…Rejection and transport mechanisms of inorganic ions through nanofiltration membranes have been described in several publications [1][2][3][4]. It can be applied for drinking water softening [5,6], selective concentration of uranium traces from sea water [7] or separation of metal by nanofiltration assisted by complexation [8,9].…”

Rejection of Gd(III) by nanofiltration assisted by complexation on charged organic membrane: Influences of pH, pressure, flux, ionic strength and temperature

“…Thus the resulting complexes could be rejected by the membrane, whereas the non-complexed ions pass through it. It is this principle of nanofiltration assisted by complexation [4][5][6][7][8][9][10] which was applied throughout this study. This study deals with the rejection of Gd(III) by nanofiltration assisted by complexation on organic charged membranes using DTPA (diethylentriaminepentaacetic acid).…”

Performance characteristics of surfactant treated commercial polyamide membrane in the nanofiltration of model solution of reactive yellow 160

“…Different methods of incorporation of surfactant in to the membrane include addition from the bulk feed-solution [11], mixing with the substrate of interfacial polymerization (IP) [12,13], soaking with membrane swatch [14,15], complexation with water soluble chelating agents [16,17] and so on. These surfactants are thought to form a thin film of charged solution on the membrane surface that alters the separation either by repulsion or attraction on the surfactant film and membrane [11].…”