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Influence of Membrane Behavior on Contaminant Transport through Geosynthetic Clay Liners

Dominijanni, Andrea / Manassero, Mario

The equivalence of the performance of a geosynthetic clay liner (GCL) and a compacted clay liner (CCL) used as landfill bottom liners can be evaluated on the basis of the advective-diffusive transport theory. However, this approach underestimates the GCL performance because the membrane behavior of the bentonite is not taken into account. In this paper, a comparison between GCLs and CCLs is presented accounting for membrane behavior, which is shown to play a relevant role at low salt concentrations (< 10^–1 M).

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Influence of Membrane Behavior on Contaminant Transport through Geosynthetic Clay Liners

Dominijanni, Andrea / Manassero, Mario

The equivalence of the performance of a geosynthetic clay liner (GCL) and a compacted clay liner (CCL) used as landfill bottom liners can be evaluated on the basis of the advective-diffusive transport theory. However, this approach underestimates the GCL performance because the membrane behavior of the bentonite is not taken into account. In this paper, a comparison between GCLs and CCLs is presented accounting for membrane behavior, which is shown to play a relevant role at low salt concentrations (< 10^–1 M).

Influence of Membrane Behavior on Contaminant Transport through Geosynthetic Clay Liners

Dominijanni, Andrea / Manassero, Mario

The equivalence of the performance of a geosynthetic clay liner (GCL) and a compacted clay liner (CCL) used as landfill bottom liners can be evaluated on the basis of the advective-diffusive transport theory. However, this approach underestimates the GCL performance because the membrane behavior of the bentonite is not taken into account. In this paper, a comparison between GCLs and CCLs is presented accounting for membrane behavior, which is shown to play a relevant role at low salt concentrations (< 10^–1 M).

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Title:

Influence of Membrane Behavior on Contaminant Transport through Geosynthetic Clay Liners

Contributors:

Dominijanni, Andrea (author) / Manassero, Mario (author)

Conference:

GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States

Published in:

GeoCongress 2008 ; 814-821

Publication date:

2008-03-07

ISBN:

DOI:

https://doi.org/10.1061/40972(311)101

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Subsurface environment , Membranes , Soil conditions , Waste management , Clay liners , Geosynthetics , Monitoring , Soil pollution

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