A review of polymeric geosynthetics used in hazardous waste facilities

Geomembrane applications for controlling diffusive migration of petroleum hydrocarbons in cold region environments

“…Polyethylene is an excellent barrier to water and ions but is permeable to hydrocarbons (Sangam and Rowe, 2001;Feldman, 2002). PVC offers some resistance to chemicals and its greater flexibility is advantageous for smaller geomembrane applications (Ortego et al, 1995). The contaminant mass flux can be important for evaluating the performance of a landfill cover barrier system as this quantifies the diffusive transport of volatile contaminants moving through the intact liner system.…”

Geotextile fibres retention properties to prevent surface water nonpoint contamination by pesticides in agricultural areas

“…The objective of this paper is to evaluate to what extent geotextiles, which are often used for geotechnical and civil engineering applications (Koerner, 2005;Matichard et al, 1993;Ortego et al, 1995), could improve pesticides retention in these systems. Geotextiles could be used for instance in natural or artificial wetlands where contact time between pesticides solution and substrates range from a few hours to several days.…”

Molecular migration of low sorbing organic liquids into polymeric geomembranes

“…6±14 Thus, barrier resistivity testing of geomembranes should be performed before completing installation of a waste impoundment facility. 16 Among several geomembranes used in solid and liquid containment facilities, high density polyethylene (HDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE) and polypropylene (PP) have been studied for their solvent migration rates. 6±10 In actual ®eld applications, it is important to study the effective barrier characteristics of geomembranes between organic pollutants and fertile soil.…”