Abstract: The hydraulics of drainage and seepage for a sloping landfill leachate collection system were investigated. A transient liquid balance equation was developed and solved numerically. A dimensionless form of the model was ...

Abstract: Light non-aqueous-phase liquid (LNAPL) pools at the interface of unsaturated and saturated zones fluctuate with ground-water table and create a “smear zone” occupied by ganglia or blobs. These ganglia dissolve slowly and ...

Abstract: The physical processes governing moisture transport in solid waste landfills are analyzed by the theory of unsaturated flow through homogeneous porous media and experimental work. A laboratory column was constructed and ...

Abstract: The design of environmentally sound bottom leachate collection systems for solid waste landfills has become a crucial engineering task due to the increased ground‐water contamination from such sites. Analysis of the ...