Diffusion of organic contaminants in triple-layer composite liners: an analytical modeling approach

Xie, Haijian, Thomas, Hywel Rhys ORCID: https://orcid.org/0000-0002-3951-0409, Chen, Yunmin, Sedighi, Majid, Zhan, Tony Liangtong and Tang, Xiaowu 2015. Diffusion of organic contaminants in triple-layer composite liners: an analytical modeling approach. Acta Geotechnica 10 (2) , pp. 255-262. 10.1007/s11440-013-0262-3

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Abstract

This paper presents an analytical solution for modeling the one-dimensional diffusion of organic contaminants through a composite liner, comprising a geomembrane, a geosynthetic clay liner and a soil liner system. The Laplace transformation technique is used to obtain a dimensionless analytical solution to the diffusion of organic chemicals through the triple-layer composite liners. The solution presented is verified against two alternative numerical solutions. The analytical solution is then adopted to provide a series of graphical design charts which can assist with the assessment and design of composite liners. Design examples are included for a composite liner having a geomembrane, a geosynthetic clay liner and a soil liner system. The proposed analytical solution provides a practical and relatively simple tool to assist with the design of composite liners and the validation of numerical models.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Springer-Verlag
ISSN:	1861-1125
Last Modified:	25 Oct 2022 09:00
URI:	https://orca.cardiff.ac.uk/id/eprint/56797

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