The parameters are: height, diameter of column, mass of material adsorption, diameter of size or particle of material, if the material has the capacity to present interparticle diffusivity of only is on surface. The operation conditions are the volumetric flow of inlet (liquid phase in the bottom of column, gas phase inverse). The initial concentration of pollutant in inlet flow, detector or analysis of concentration of pollutant in the outlet flow. You can take samples to measure the concentration in the top (outlet) of column or to take at different intermediate heights in the column (depend of your design).
The most important for the use of a fixed bed adsorbent is to know the adsorption capacity of the adsorbate to be captured. Because adsorption is a phenomenon that depend on the number of available site.