Authors: Murphy, P., Marquette, A., Reible, D., and Lowry, G.
Reference: Murphy, P., Marquette, A., Reible, D., and Lowry, G. (2006). ”Predicting the Performance of Activated Carbon-, Coke-, and Soil-Amended Thin Layer Sediment Caps.” J. Environ. Eng., 132(7), 787–794
Summary: This study compares the effectiveness of commercially available sorbents that can be used to amend sand caps to improve their ability to prevent contaminant migration from the sediments into the bioactive zone. Amendments evaluated include coke, activated carbon, and organic-rich soil. The properties relevant to advective-dispersive transport through porous media sorption, porosity, dispersivity, and bulk density are measured for each material, and then used as inputs to a numerical model to predict the flux of 2,4,5-polychlorinated biphenyl PCB through a sand cap amended with a thin 1.25-cm sorbent layer. Systems with and without groundwater seepage are considered.
What You Will Find Here: Design (material selection p. 789, material characterization p. 788, groundwater seepage p. 790), Capping, Remediation (PCB), Model Development (Freundlich p. 789, Flux p. 789 – sorption, porosity, dispersivity, bulk density, simulated cap performance, half-life p. 792), Attenuation p. 791