Author(s)

Bryan J. Travis

Abstract

Models that couple subsurface flow and transport with microbial processes are an important tool for assessing the effectiveness of bioremediation in field applications. A numerical code is described that differs from previous in situ bioremediation models in that it includes: both vadose and groundwater zones, unsteady air and water flow, limited nutrients and airborne nutrients, toxicity, co- metabolic kinetics, kinetic sorption, subgridscale averaging, pore clogging and protozoan grazing. Introduction Organic materials such as chlorinated solvents and petroleum products are among the most common contaminants of ground water and soils. In recent years, several alternative environmental restoration technologies have been compared for their effectiveness at removing such cont

Keywords