EVOH Layers and Better Gas Barrier Performance for Geomembranes

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Geosynthetic barriers perform exceptionally well in liquid containment applications, but gas barrier performance can still be improved. Volatile organic compounds, for example, can diffuse through barrier systems. The rate is low, but the incorporation of an EVOH layer in a geomembrane has shown that the diffusion rate of VOCs can actually be much lower. Applications that utilize geosynthetics and... »

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... »

Watershed Geo Adds Ming Zhu as Director of Engineering

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Dr. Ming Zhu, P.E. has distinguished himself over the past decade in the geotechnical field through work with a major private consulting firm and through serving major bodies such as ASCE’s Geosynthetics Committee and the Transportation Research Board’s Geo-Environmental Committee. Now, he’s taking on an even bigger role: Director of Engineering for Watershed Geo. In his new position, Dr. Ming Zhu... »

Register for FGI Short Course on Containment and Welding

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The Fabricated Geomembrane Institute is presenting a one-day course on “Current Advances & Trends in Containment & Welding Technologies.” The February 21 FGI short course will be held at TRI Environmental’s headquarters in Austin, Texas. Expert speakers from geosynthetics manufacturers, fabricators, installers, research and academia, and government agencies will be on han... »

Boyd Ramsey Opens Engineering Consultancy

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After nearly two decades in engineering roles in North America and Asia with a global leader in geosynthetics manufacturing, Boyd Ramsey is taking on a new challenge: developing an engineering consultancy. The firm, Boyd Ramsey Consulting LLC, officially opened as the calendar year turned to 2017. A website has been launched in support of the venture: www.boydramseyconsulting.com BOYD RAMSEY CONSU... »

Options Grow for EVOH Geomembranes

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Ethylene Vinyl Alcohol (EVOH) has been a promising addition to geomembrane manufacturing options. A thin EVOH layer has the capability to reduce dramatically the permeability of membranes to gases of all kinds and provide to the geomembrane excellent gas barrier characteristics. This enhances their environmental and functional benefits far beyond any existing solution. But, as with most innovation... »

Active LFG Collection Design with ClosureTurf®

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Agru America has published its fourth technical webinar. The topic for the latest educational offering is Active LFG Collection Design with ClosureTurf®–an Engineered Final Cover System. ACTIVE LFG COLLECTION Presented by Chris Richgels, P.E. and in partnership with Watershed Geo, which developed the ClosureTurf system, the 50-minute recorded session addresses topics such as: Infiltration Hy... »

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... »

Gourc and Vidal on Geosynthetics in Landfill Applications

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The International Geosynthetics Society (IGS) Brazilian Chapter (IGS Brazil) will hold a special course on “Geosynthetics in Landfill Applications” on September 14. The education will be led by Profs. Jean-Pierre Gourc ( professor emeritus at the Université Joseph Fourier – France) and Delma Vidal (Instituto Tecnológico de Aeronáutica – ITA). The landfill applications event will ... »

Geodesic Domes, Geosynthetics, and a New Partnership

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In addition to its large geosynthetics supply and installation business, Titan Environmental Containment has a well-established construction side. The company’s construction experience led it to build one of Canada’s largest aluminum geodesic domes. The company’s construction work has often been in regards to large tanks, such as for agricultural applications or bulk liquid storage. In Alber... »

VIDEO: A Profile of ClosureTurf™ at US Landfills

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Beginning with an interview from the Potola Landfill in California’s Sierra Nevada Mountains, a new video from Watershed Geosynthetics focuses on the innovative ClosureTurf™ barrier system. The system utilizes geomembrane (from Agru America) and synthetic turf to create a natural-looking cover. As shown in the video and through testimonials from across the country, landfills and local agencies are... »