Uphill transport in mass separation devices with reactive membranes: counter-transport

Modeling on the Counteractive Facilitated Transport of Co in Co–Ni Mixtures by Hollow-Fiber Supported Liquid Membrane

“…Therefore, a model was suggested to analyze the system by the continuity mass-conservation equation, including the flow and the diffusion inside the fiber wall. [4,5] In most cases the same governing equation and system are used, but the analytical method and model are determined by the boundary conditions. Among the boundary conditions, the calculation of concentration at the interface is the most important parameter in this system.…”

“…Kim et al [4] performed a mathematical modeling by transforming a partial differential equation to an ordinary differential equation using a symmetrical orthogonal-collocation method. The concentration gradient was defined as the concentration difference between the feed and strip solution.…”

Triethanolamine–cyclohexanone supported liquid membranes study for extraction and removal of nickel ions from nickel plating wastes

“…To apply the SLM for Ni removal, one experiment was carried out with the Ni plating waste solution in the feed compart- 3 ) 0.020 Fe (mol/dm 3 ) Nil ment and 1 mol/dm 3 NaOH as the strip half-cell. All other conditions were the optimum condition mentioned above.…”

“…The importance of these processes has been shown by a number of researchers [1][2][3][4][5][6][7], with a variety of carrier agents incorporated into the membrane. Their high specificity and potential for industrial-scale processes with economic advantages make them useful to solve some important problems, such as processing dilute metal ions solutions for recovery of the metals ions of metallurgical importance.…”

Modeling chemically active liquid membranes in tubular inorganic supports

“…The additions of mobile carrier species and chemically active compounds can increase the membrane flux and selectivity (Bungay et al, 1986;Stroeve and Kim, 1987). Recently, liquid membranes containing mobile complexing agents have been widely studied (Sengupta et al, 1988;Kim and Stroeve, 1989) for solute extraction using tubular membrane modules.…”