PODCAST: George Koerner on Exposed Geomembrane Performance

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George Koerner, Director of the Geosynthetic Institute, had the honor this year of delivering the first Koerner Lecture—a series named in honor of his father Dr. Robert Koerner, who is internationally recognized as one of the godfathers of geosynthetics and who continues his work as Director Emeritus at GSI. Last year, I had the pleasure to see both Koerners at an ASCE’s GeoChicago conference and ... »

SWANA Publishes Alternative Final Cover Report

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“The utilization of alternative final cover systems is an area of growing interest among landfill owners who want to avoid the problems that are associated with traditional final cover systems,” writes the Solid Waste Association of North America. “The acceptance of state regulators of these alternative systems is a key issue in their future consideration and deployment.” In a new report, SWANA of... »

13-Year Study of Exposed, Green Geomembrane Cover

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By Boyd Ramsey – In the summer of 2001, a 60- mil high-density polyethylene (HDPE) green geomembrane was installed as a cap at the Polk County Florida solid waste disposal facility (The North Central Sanitary Landfill Class 1 Disposal Area). This cap covers approximately 4 hectares (16 acres) of surface area on a mass of waste with a relatively flat top surface and benched side slopes with an angl... »

The Lighter Side of Geomembranes

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Geomembrane installations often cover substantial areas. Landfill cells pose enormous footprints. Oil and gas pits, industrial processing ponds, and wastewater containment ponds are large installations too, and each year they tend to be built a little larger. The scaling up of these facilities is not just a matter of achieving better operational economics for the facility owner; it’s also because ... »