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contributor authorLiang-tong Zhan
contributor authorXing Zeng
contributor authorYuchao Li
contributor authorYunmin Chen
date accessioned2017-05-08T21:42:41Z
date available2017-05-08T21:42:41Z
date copyrightJanuary 2014
date issued2014
identifier other%28asce%29ee%2E1943-7870%2E0000792.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/60243
description abstractGeomembrane–bentonite composite barrier is known as one of the most reliable and effective technologies for containing underground contamination. Analytical solution for one-dimensional diffusion of an organic solute in the three-layered composite barrier is presented for the case in which the barrier is keyed in aquitard. Parametric analyses were conducted to investigate the effects of partition coefficient and installation location of high-density polyethylene (HDPE) geomembrane, retardation factor, and thickness of bentonite slurry wall on the barrier performance using this analytical solution. The analysis results demonstrate that the containment performance of the composite barrier depends much on the partition coefficient of HDPE geomembrane over the target pollutant. The HDPE geomembrane exhibits an excellent resistance to the hydrophilic organics, which have a low partition coefficient. However, the hydrophobic organics, which have a high partition coefficient, can diffuse readily through the HDPE geomembrane. It is found that there is a special value of partition coefficient (i.e.,
publisherAmerican Society of Civil Engineers
titleAnalytical Solution for One-Dimensional Diffusion of Organic Pollutants in a Geomembrane–Bentonite Composite Barrier and Parametric Analyses
typeJournal Paper
journal volume140
journal issue1
journal titleJournal of Environmental Engineering
identifier doi10.1061/(ASCE)EE.1943-7870.0000784
treeJournal of Environmental Engineering:;2014:;Volume ( 140 ):;issue: 001
contenttypeFulltext


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