Simulation of Solute Transport in a Chemically Reactive Heterogeneous System' Model Development and Application

Authors

C.W. Miller, Lawrence Berkeley Laboratory
Larry Benson, University of Colorado at BoulderFollow

Date of this Version

4-1983

Citation

Water Resources Research, Vol. 19 No. 2, Pages 381-391, April 1983

Abstract

One-dimensional transport of solutes in a saturated porous medium has been simulated using a numerical model CHEMTRN. This model includes dispersion/diffusion, advection, ion exchange, formation of complexes in the aqueous phase, and the dissociation of water. The mass action, transport, and site constraint equations are expressed in a differential/algebraic form and solved simultaneously. In. the mass action equations describing complexation and sorption processes, the activities of the species in the aqueous phase are approximated using the Davies equation.