Impermeable Liner/Synthetic Turf Closures for Landfills

摘要

As a response to numerous failures of environmental closures at waste sites, engineers have looked at new approaches in establishing a more physically stable and environmentally sound solution. This latest approach builds off of the success of using exposed geomembranes as a landfill cover and includes significant improvements, such as incorporating an extra protective layer that also serves as a ballast to minimize anchor trenches. The system provides for a more stable and rapid installation while reducing gas emissions, erosion, and sedimentation. The drainage component and small spikes, that are inherent part of the underside of the membrane, allow for installation of the cover on very steep slopes with uniform “gripping” effect on the sub grade. The extra protection layers, composed of highly-resistant UV polyethylene turf plus, sand infill and a woven geotextile, increase the longevity while protecting the integrity of the membrane from physical damage.