Transport of Dissolved Wastes in Rivers

Transport of dissolved radioactive and other toxic wastes in rivers is simulated on a digital computer. The mathematical model is based on experimental aquarium and model river data which is scaled to prototype parametric values. Waste transport in large unregulated rivers is simulated over distances up to 1,000 miles for periods of many years. River simulation includes monthly stochastic flow variation, flooding, variable channel shape, tributary flow, sorption of wastes by stationary components of the benthal system, and erosion of the benthal system at high flows. Large variations in downstream waste transport rates in a river receiving a constant, continuous waste release are shown to be a function of channel sorption of wastes, flow variability, and benthal erosion resistance.