Investigation of Transport- and Sorption-Related Factors on the Removal of Hydrophobic Organic Compounds in Heterogeneous Soils Using a Hierarchical Modeling Approach |
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Authors: | Yusong Li Eugene J LeBoeuf |
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Institution: | (1) School of Power Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China |
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Abstract: | Hydrophobic organic compounds (HOCs) represent a class of generally highly persistent contaminants in groundwater. Factors
influencing the transport of HOCs are evaluated through a hierarchical modeling approach, which incorporates particle scale
sorption/diffusion with pore scale flow and transport models. The relative contributions of transport- and sorption-related
factors on HOCs transport are first elucidated in a simplified single particle system. The comparative roles of different
soil organic matter contents and compositions on the fate and transport of HOCs are further investigated by simulation of
phenanthrene transport in porous media. This effort represents a proof-of-concept demonstration of bridging comprehensive
representations of fluid-flow with mechanistic sorption/desorption processes. |
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