Seattle awards Layfield with large CSPE floating cover project

August 18, 2021  |  Case Studies, Products

Layfield USA Corp. announced the award for the supply and installation of a new chlorosulfonated polyethylene (CSPE) liner and floating cover system for the Seattle Public Utilities Lake Forest Park Reservoir project in Washington State. The project is a unique and challenging double reservoir syste…
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Innovative design of sludge drying beds using geocells

August 17, 2021  |  Case Studies, Products

Wastewater treatment facilities have long had to contend with the challenge of dewatering sludge to minimize waste and achieve overall cost-efficiency for disposal. Large-scale facilities commonly use mechanical filter presses or centrifuges to dewater sludge. This equipment is often too cumbersome …
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Bentonite mats allow fish to migrate

August 1, 2021  |  Case Studies, News

The Schwabentorwehr (Swabian Gate Weir) in Freiburg im Breisgau, Germany, was in disrepair and insurmountable for fish. With the help of bentonite mats, the fish now have a free run again. The historic Schwabentorwehr on the Dreisam River was a federally listed building for monument protection. Howe…
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Solmax pit thermal energy storage with geosynthetics on the Tibetan Plateau

July 19, 2021  |  Case Studies, News

Tibet has an average elevation of more than 13,100 feet (4,000 m), reaching to 16,400 feet (5,000 m). At these heights, temperatures can remain below freezing all day in winter, plunging to –4°F (–20 °C). In 2018, Tibet’s first large solar thermal district heating system was designed and bui…
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Coastal protection solution with geotextile sand containers

July 15, 2021  |  Case Studies, Products

Due to climate change, storm surges are becoming more frequent. The coast in the seaside resort of Lubmin, Germany, was exposed to several storm surges over a short time. In case of an additional storm surge, the existing coastal protection dune was in danger of breaking. In 2017 and 2019, a total o…
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NPA geocell for railway line repair in permafrost region

June 1, 2021  |  Case Studies, Features

Churchill is a port city located on Hudson Bay in northern Manitoba, Canada. The nearest roadhead village of Gillam is 156 miles (252 km) south. Hudson Bay Railway (HBR), the only mode of land transport to Churchill, was completed in 1929. This single-line railway track has served the northern port …
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Design of reinforcement geosynthetics in landfill piggyback expansion

June 1, 2021  |  Case Studies, Features

An operator at a nonhazardous waste storage facility proposed extending the facility’s life, within the existing perimeter, by vertically expanding the cells in operation to a maximum thickness of waste of 52.5 feet (16 m). This project is based on nonhazardous waste storage cells 49.2-feet (15-m)…
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Dewatering of sludge from a sewage treatment plant with geotextile tubes

June 1, 2021  |  Case Studies, Features

Water is an important resource for people’s quality of life and is indispensable for several uses, including desedentation. However, this resource is finite and available in small quantities in the quality of fresh water, at liquid state and on the surface. Therefore, rivers and lakes, providers o…
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Bituminous geomembrane for a South Australian mine

June 1, 2021  |  Case Studies, Final Inspection, News

The Oz Minerals Carrapateena mine is a copper-gold project located 99 miles (160 km) north of Port Augusta in South Australia. The ore is processed on-site to produce a gold-copper concentrate. A lined tailings storage facility (TSF) was required to receive the tailings by-product and protect the su…
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Presto GeoSystems installs GEOWEB geocells under Tasmanian road

March 30, 2021  |  Case Studies

The Huon Valley Council is situated south of Hobart—the southernmost local government council in Australia. Esperance Coast Road, Huon Valley, Tasmania, was showing several signs of deterioration along its length, including deformation, cracks and edge failure.
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