Landfill Base Liners: Assessment of Material Equivalency and Impact to Groundwater

Kandris, K; Pantazidou, M

dc.contributor.author	Kandris, K	en
dc.contributor.author	Pantazidou, M	en
dc.date.accessioned	2014-03-01T02:09:29Z
dc.date.available	2014-03-01T02:09:29Z
dc.date.issued	2012	en
dc.identifier.issn	09603182	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29847
dc.subject	Clay liners	en
dc.subject	Composite liners	en
dc.subject	Geosynthetic clay liners	en
dc.subject	Landfill liner design	en
dc.subject	Landfills	en
dc.subject.other	Analytical solutions	en
dc.subject.other	Clay liners	en
dc.subject.other	Compacted clay liner	en
dc.subject.other	Composite liner	en
dc.subject.other	Contaminant concentrations	en
dc.subject.other	Critical parameter	en
dc.subject.other	Discharge rates	en
dc.subject.other	Flow and transport	en
dc.subject.other	Geosynthetic clay liners	en
dc.subject.other	Inorganic contaminants	en
dc.subject.other	Key parameters	en
dc.subject.other	Landfill liner design	en
dc.subject.other	Leachate flows	en
dc.subject.other	Liner design	en
dc.subject.other	Organic contaminant	en
dc.subject.other	Retardation factors	en
dc.subject.other	Transport calculation	en
dc.subject.other	Contamination	en
dc.subject.other	Geosynthetic materials	en
dc.subject.other	Groundwater	en
dc.subject.other	Impurities	en
dc.subject.other	Land fill	en
dc.subject.other	Leachate treatment	en
dc.subject.other	Leaching	en
dc.subject.other	Nanocomposite films	en
dc.subject.other	Groundwater pollution	en
dc.subject.other	assessment method	en
dc.subject.other	clay liner	en
dc.subject.other	composite	en
dc.subject.other	geomembrane	en
dc.subject.other	groundwater pollution	en
dc.subject.other	landfill liner	en
dc.subject.other	leachate	en
dc.subject.other	organic pollutant	en
dc.subject.other	pollutant transport	en
dc.title	Landfill Base Liners: Assessment of Material Equivalency and Impact to Groundwater	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10706-011-9447-4	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10706-011-9447-4	en
heal.publicationDate	2012	en
heal.abstract	This paper gathered available flow and transport solutions and used them for two composite liners, consisting of geomembrane (GM) overlying either a compacted clay liner (CCL) or a geosynthetic clay liner (GCL). Its aim is to provide a guiding framework for the possible choices of (a) approaches to bottom liner design, (b) respective analytical solutions to flow and transport equations, as well as (c) parameters required for each type of solution. On the basis of the obtained results, the following recommendations are made. When the goal of analysis is to determine material equivalency, leachate flow rate is an adequate key parameter for GM-CCL composite liners. For GM-GCL composite liners, it is necessary to compute contaminant concentration or mass flux, considering (a) transport through defects for inorganic contaminants and (b) diffusion and the contribution of any available attenuation layer for organic contaminants. When the goal of analysis is to assess impact to groundwater, it is advised to calculate both discharge rate and contaminant mass flux regardless of liner type. The critical parameter for the transport calculations is the retardation factor of the contaminant, for the case of CCLs, while the results for GCLs are much less sensitive to this parameter. © 2011 Springer Science+Business Media B.V.	en
heal.journalName	Geotechnical and Geological Engineering	en
dc.identifier.doi	10.1007/s10706-011-9447-4	en
dc.identifier.volume	30	en
dc.identifier.issue	1	en
dc.identifier.spage	27	en
dc.identifier.epage	44	en