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Solute transport through heterogeneous porous medium with effective adsorption coefficient

Abstract One-dimensional solute transport, originating from a continuous point source, is studied along unsteady longitudinal flow through a heterogeneous medium of semi-infinite extent. Diffusion is considered as directly proportional to the linear spatially–dependent function that defines the heterogeneity. It is also assumed temporally dependent. It is expressed in both the independent variables in degenerate form….