The heterogeneous nature of virus-fluid systems and low concentrations make diffusion models for adsorption question- able.
An adsorption model based on a random walk procedure has been developed. The transport of virus to an adsorptive surface is presumed to be dominated by fluid eddies rather than diffusion. By accounting for the probabilities of motion of all possible paths, it is possible to calculate the removal rates in paced beds.
The results of a parametric study are presented and examined for behavior relative to traditional models.