Archives

Geosynthetics for stabilization in solar farm development

February 1st, 2022

FIGURE 1 Laying down geotextiles at Chicot Solar Energy Center, Chicot County, Ark. With renewed focus on clean electricity, an era with massive investment in new solar power has begun, leading to its widespread development. Although these systems have become more cost-effective, there are often solutions left on the table that could make the costs […]

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Geotextile filtration clogging resistance

February 1st, 2022

Q: I have a question about the Filter Criteria in the Federal Highway Administration (FHWA) procedure "Filter Performance and Design for Highway Drains" procedure, specifically the geotextile filtration clogging resistance equation 2-10. This seems to require a particularly large pore size; for example, if the D15 of the soil was for 70 microns, the minimum […]

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NAUE geosynthetics secure German road embankment over old mining area

November 2nd, 2021

Photograph courtesy of NAUE The German federal highway B91 between the cities of Deuben and Werschen in Germany is a collector road with access to the A9 motorway. The subsoil risks resulting from past lignite mining activities represent an enormous challenge in the region. Subsidence has occurred regularly. Solution In the area of a bridge […]

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GSI to host webinar on geotextile filters

May 12th, 2020

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geotextile Filters: Concerns and Issues,” on May 20, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. It is roughly estimated that geotextiles have been used in more than […]

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GSI to host webinar on geotextile filters

March 27th, 2019

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geotextile Filters: Concerns and Issues,” on April 10, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. It is roughly estimated that geotextiles have been used in more than […]

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The magic of water and geosynthetics

February 1st, 2019

Water is a fundamental issue in many projects using geosynthetics. From erosion control to reservoir liners and covers, from landfill leachate pond barriers to coal ash dewatering, handling water and the effects of water are considerations nearly every engineer employing geosynthetics considers. Geosynthetics can effectively manage water applications of erosion control, reinforcement, barriers, filtration and […]

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KMS installs PURON PLUS package system in Canada featuring PULSION MBR

October 31st, 2018

Koch Membrane Systems (KMS), a leader in the development and manufacture of membrane-based filtration technologies, announced the commissioning of a PURON PLUS packaged MBR system in Saskatoon, Saskatchewan, Canada. The PURON PLUS system provides a compact and turnkey wastewater treatment solution that is fully automated and provides consistent high-quality effluent for safe discharge or reuse. […]

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Multilinear drainage geocomposites to filter oil sands tailing slurries

October 1st, 2018

Mining and some energy operations generate large quantities of water-containing tailings. These tailings are made of crushed-rock particles that are deposited in a slurry form. This is the case for coal, tar sand, lead, zinc, gold, silver, copper, molybdenum, nickel, taconite (iron), phosphate, bauxite (aluminum oxide), uranium, trona (soda ash) and potash, for example. There […]

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The many applications for geosynthetics in the energy sector

October 1st, 2018

The opportunities for geosynthetics in energy applications are nearly endless. There are huge energy categories, such as oil, natural gas and coal, but geosynthetics also play a role in nuclear energy, hydropower, wind power and solar power, among others. Geosynthetics line storage tanks, support roads to remote sites, line tailings ponds, provide filtration, dewater coal […]

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The GMA Techline

October 1st, 2018

Toxicity of nonwovens? Q: Are there any comprehensive tests (or a general synopsis) of the environmental toxicity of leachate from nonwoven polypropylene fabrics when aged in a freshwater or saltwater solution? Regulatory and municipal bodies in Europe and New Zealand are requesting more info about products that are used in riparian and coastal environments. A: […]

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