Abstract: Model predicting gas phase concentrations of an organic substrate and of carbon dioxide in unsaturated soil microcosms was developed. The model included equilibrium partitioning of organic between soil, water, and gas ...

Abstract: A three-dimensional finite difference model for simulation of bioventing is presented. The model incorporates three-phase (gas-water-organic) flow with equilibrium interphase mass transfer and dispersive transport of organic ...

Abstract: The effects of biomass accumulation and distribution on air pressure losses in biofilters were experimentally studied. Two bench-scale biofilters, one packed with inert porous pellets (Nova Inert) and the other with wood ...

Abstract: A long term column study of the anaerobic biodegradation and associated isotopic fractionation of tetrachloroethene and transformation products was conducted. The column, initially fed with tetrachloroethene, ethanol, and ...