A versatile model for simulation of reaction and nonequilibrium dynamics in multicomponent fixed-bed adsorption processes

Modeling of Ion-Exchange for Cesium Removal From Dissolved Saltcake in SRS Tanks 1-3, 37 and 41

“…The VERSE-LC code (Berninger et al, 1991) was used for the column modeling presented in this report based on its availability and its earlier use in previous ion-exchange analysis efforts at SRNL. In the column model, local equilibrium between the pore fluid and neighboring surface sites is assumed where an equilibrium adsorption isotherm must be specified.…”

“…The VERSE-LC code was used for the ion-exchange column modeling presented in this report (Berninger et al, 1991) based on its availability and previous experience with its use. VERSE-LC solves a set of equations describing one-dimensional transport along the axial dimension of the ion-exchange column coupled to one-dimensional diffusion within a porous particle representing the resin.…”

Preliminary Ion Exchange Modeling for Removal of Cesium from Hanford Waste Using Hydrous Crystalline Silicotitanate Material

“…The governing equations and an appropriate simplification is presented. For the modeling efforts presented in this report the VERSE-LC code was chosen (Berninger et al, 1991) based on its availability and widespread (and accepted) use in this field. Essentially, a very similar methodology was used in earlier analyses for the Cesium-SuperLig  644 system as presented by Hamm et al (2000a).…”

Preliminary Ion Exchange Modeling for Removal of Technetium from Hanford Waste Using SuperLig 639 Resin

“…The governing equations and an appropriate simplification is presented. For the modeling efforts presented in this report the VERSE-LC code was chosen (Berninger et al, 1991) based on its availability and widespread (and accepted) use in this field. Essentially, the same methodology was used in earlier analyses for the Cesium-SuperLig Ò 644 system as presented by Hamm et al (2000).…”