Predicting the Effect of Moisture on Vapor-Phase Sorption of Volatile Organic Compounds to Soils

摘要: Sorption from the vapor phase is an important factor controlling transport of volatile organic compounds (VOCs) in unsaturated zone. Accurate description sorption to soil zone therefore intrinsic predicting ultimate fate contaminants. Vapor-phase several VOCs onto seven soils at oven-dried, air-dried, typical field moisture and water-saturated conditions was measured using a batch-equilibrium headspace method. An equilibrium partitioning model developed predict effect content on vapor-phase sorption. The based pore-size distribution BET isotherm parameters under oven-dried conditions. shown accurately observed experimental results.