Polychlorinated biphenyl diffusion through HDPE geomembrane. Issue 6 (15th April 2016)

• Record Type: Journal Article
• Authors: Rowe, R. K.; Jones, D. D.; Rutter, A.
• Is Part Of: Geosynthetics international. Volume 23:Issue 6(2016)
• Page Start: 408
• Page End: 421
• Publication Date: 2016-04-15
• Subjects: Geosynthetics -- High-density polyethylene -- Municipal solid waste -- Landfill -- Polychlorinated biphenyl -- Diffusion -- Partitioning; Geosynthetics -- Periodicals; Geosynthetics; Periodicals; 624.1892
• DOI: 10.1680/jgein.16.00006
• Languages: English
• ISSNs: 1072-6349

Abstract

Abstract : Experiments conducted to evaluate the partitioning coefficient from aqueous solution into and out of high-density polyethylene geomembrane, as well as the diffusion coefficient through the geomembrane are reported. The best estimate partitioning coefficient ( S gf ) is about 150 000 with an upper-bound estimate of 325 000. The best estimate diffusion coefficient ( D g ) is 1.0 × 10 −14 m 2 /s, with lower and upper bounds of 0.5 × 10 −14 and 5 × 10 −14, respectively. Using the diffusive properties obtained from the above experiments, the potential impacts on an aquifer of the migration of polychlorinated biphenyls and chloride are compared for a composite liner in a hypothetical municipal solid waste landfill. It is shown that, with good construction quality assurance to limit the number of holes and length of covered wrinkles to acceptably low values, a modern composite liner limited the impact of polychlorinated biphenyls on the aquifer concentration to well below regulatory limits.