Simultaneous recovery of cadmium and lead from aqueous effluents by a semi-continuous laboratory-scale polymer enhanced ultrafiltration process

Application of Polyelectrolyte‐Enhanced Ultrafiltration for Rhenium Recovery from Aqueous Solutions

“…This is due to the increasing numbers of the available sites of PQ6 with increasing PMMR. Similar trends were observed in other studies [9,24]. In Fig.…”

Electrochemical regeneration of partially ethoxylated polyethylenimine used in the polymer-supported ultrafiltration of copper

“…To carry out this step in reactive processes of separation with membranes, several alternatives have been studied. Amongst them, different chemical and electrochemical procedures have been proposed, such as electrodialysis with bipolar membranes [12], chemical regeneration consisting of a pH decrease-ultrafiltration stage [11,13] and a combination of pH decrease with ultrafiltration and photocatalysis [14]. These techniques have several drawbacks, such as high water consumption, low fluxes in ultrafiltration stage (high area requirements) and/or generation of a final mud that must be treated (as electrodialysis is the case).…”

Retention of cadmium ions from aqueous solutions by poly(ammonium acrylate) enhanced ultrafiltration

“…MEUF [3][4][5][6][7][8] and PEUF [9][10][11][12][13][14][15][16][17][18][19] combine ultrafiltration with the presence of water-soluble surfactants and polymers, respectively. The enhanced ultrafiltration processes have advantage of operating at relatively low pressures and temperatures resulting in excellent rejection of multivalent metals and organics.…”