Abstract This is the second of a two-part series describing laboratory investigations and mathematical modeling of the sorption of hydrophobic solutes by aquifer materials. An evaluation is made of several rate and equilibrium models for description of solute sorption as a rational basis for predicting sorption processes in groundwater systems. The first paper presents and compares sorption in completely mixed batch-reactor systems while this paper addresses column-reactor systems. The results show that accurate representation of the sorption process can be obtained with either a dual-resistance diffusion model or an equilibrium/first-order sorption rate model. Changes in velocity of the fluid phase affect the magnitude of fitted model parameters, but changes in concentration have negligible influence on these parameters.