Analytical Inverse Model for Multicomponent Soil Vapor Extraction

Abstract

An analytical model has been developed to predict in-situ compositions and contaminant volumes from early monitoring of effluent gas concentrations of individual species during multicomponent soil vapor extraction. The model exploits the wave-like propagation of the evaporation fronts of individual species to present analytical expressions for the in-situ compositions, contaminant volumes, effluent concentrations, and recovery rates during discrete time intervals. The efficiency of soil vapor extraction systems also can be determined. Comparison of this theory to a previous experiment of through-flow venting of benzene, toluene, and