Surface properties of ceramic ultrafiltration TiO2 membranes: Effects of surface equilibriums on salt retention

Description of the preferential transport of monovalent salts through Na–mordenite membrane: Physico-chemical aspects

“…The experimental unit used to study the retention properties of the Na-mordenite membrane has been described in previous work [13]. The unit is operated in the cross-flow mode, with a flow rate from 0 to 700 L/h and, pressure from 0 to 5 bar using a volumetric pump.…”

Synthesis of mono- and bi-layer MFI zeolite films on macroporous alumina tubular supports: Application to nanofiltration

“…The first stage (corresponding to the experimental part) consists on performing the filtration of a neutral molecule (vitamin B12) in order to measure the experimental rejection rates. The second stage corresponds to the calculation of the obtained rejection rates from a model based on the Nernst-Planck approach for uncharged solute [59,69]. This theoretical Nernst-Planck approach assumed that mass transfer is governed by steric, electric and dielectric effect by solving generalized NernstPlanck equation in the porous medium and equilibrium partitioning in both sides of the active layer (boundary conditions) [70].…”

Decontamination of polluted discharge waters from surface treatment industries by pressure-driven membranes: Removal performances and environmental impact

“…This difference between di-and trivalent ions shows that electrostatic interactions probably plays a role on rejection, meaning that steric exclusion is probably not the sole phenomenon governing the separation of ions. Finally, rejections obtained with the inorganic UF membrane (Filtanium) are higher than expected considering its pore size, probably due to its strong surface charge or strong variation of solvent properties inside pores as it was previously shown with such membranes [52].…”