2020 Volume 35 Pages 135-140
In recent years, the environmental safety for organic compounds with high molecular weight and hydrophilic properties, such as bisphenol A, 1,4-dioxane, and persistent organic pollutants (POPs), has been of concern. This paperintroduces a conceptual model of the barrier performance of geomembranes against such organic compounds. The pore diameter, which is one of the barrier performance, was estimated from the viewpoint of molecular dynamics. By solving the equation of motion with Brownian motion, fluid force,and intermolecular force acting on each molecule as external forces, the relationship between the pore size and the diffusion coefficient in the geomembrane was evaluated.
