V.L.Polyakov
Contaminant transport in sediment layer. 1. Theoretical solution

Applied hydromechanics, Vol. 3 (75) ¹ 1, (2001) p.52-59
The mathematical problem was stated for advection-diffusion transport of contaminant in a uniform sediment layer taking into account its purification due to contaminant transformation, discharge and exchange processes. An exact analytical solution to this problem was obtained by the integral transform method. Two characteristic stages were considered of contaminant transport and distribution within the sediment layer. At the first stage considerable contamination of a surface water source causes saturation of the sediment layer with contaminant, at the second stage this layer is gradually purified owing to essential decrease in contamination level.
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TEXT LANGUAGE: Russian