Applicability of Compartmental Models for Simulating The Transport o Radionuclides in Soil

摘要

The applicability of multi-compartmental models to describe the transport of radioactive trace substances in soil is reconsidered. It is shown that the widely used serial compartmental model implicitly implicitly assumes convection-dom- inated flow and has to be replaced by a model with back flow for diffusion- controlled transport. A compartmental approach provides a valid model of the transport processes only if the number of compartments is set to a specific value which is determined by the physical flow conditions in the soil studied.