Abstract
In dealing with groundwater contamination and pollution monitoring, it is important to predict the characteristics of the various chemicals that flow in the soil-water environment. This research reviews the current state of the formulations of chemical flow in unsaturated mobile-immobile water systems and proposes a new approach towards the selection of a model basis. This includes the use of the irreducible moisture as the immobile moisture term and the use of a simple kinetic term for the soil sorption. These assumptions when tested on a simple discrete experiment for the sorption term and analytical and experimental fitting for the immobile term show an acceptable level of performance.
