Pumped Storage Facility Revitalized by GCL Barrier

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By NAUE – After more than 50 years of operation, the Hohenwarte II pumped storage facility near Saalfeld/Thuringia had seen many changes both in the ways in which the facility needed to be used and in its infrastructure and performance. Numerous changes had occurred to the site’s inlets and outlets. The pumped storage facility began to exhibit high rates of leakage. The issue was the aging, ... »

Coal Ash Rules and Engineering Webinar, November 15

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CETCO is supporting a free, November 15 webinar on US Federal Coal Ash Rules — Engineering and Design Considerations. The discussion will be led by Dr. John Daniels (Univ. of North Carolina – Charlotte), John Allen, P.E. (CETCO), and Bob Trauger, P.E. (consultant). Topics to be covered include: EPA CCR Rule Overview Ongoing rule litigation and State implementation plans Understanding the Rule’s de... »

Geosynthetics for Waste Ash Landfill Closure – Two Projects

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For a landfill closure project in Massachusetts, Covanta Energy put an end to constant slope repair with a stable, cost-effective, geosynthetic closure technology. By Agru America and Watershed Geo – With more than 60 acres of closed landfill space to manage, Steve Melloni, Covanta Energy’s Regional Landfill Manager, has a lot on his plate. Most of his closed waste-to-energy ash landfills are trad... »

MSE Walls Engineered for Oil Drilling Operations

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Molisht is an underground resource-rich area in Berat, Albania. Numerous important oil and gas wells are found there. For an energy plant, Maccaferri engineered retaining wall solutions to support the site’s oil drilling works. The Molisht-1 well has the potential to produce 8,000 – 10,000 barrels of oil per day. It is considered a crucial supply point for the owner. Over a 9-month period, the com... »

Polymer-Enhanced GCL for Wet Process Ash Impoundment

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By GSE Environmental – An innovative geosynthetic clay liner (GCL) was used for the containment of wet process ash at a 3,520 MW facility in the Southeastern United States. The wet process ash project involved roughly 1,000,000 ft.2 of GSE Bentoliner CAR (Coal Ash Resistant) GCL. The facility owner wanted an impoundment design that would conform to any potential rulings from the US Environmental P... »

VIDEO: Pumped Storage Plant Barrier Rehabilitation, Germany

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The latest video from NAUE tells the story of the pumped storage plant barrier rehabilitation in Hohenwarte, Germany. The project provided an essential update a half-century-old site. Geosynthetic clay liner (GCL) has been the centerpiece of the sealing system’s update. “We have an upper reservoir with two concrete dams and a rockfill dam provided with a clay seal,” says Dipl.-In... »

PODCAST: Coal Combustion Residuals and GCLs

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Geosynthetica’s Director, Elizabeth Peggs, interviewed Dr. Craig Benson (University of Virginia) and engineer John Allen (CETCO) about coal combustion residuals (CCRs) and new barrier system regulations governing CCR handling and storage. Both Benson and Allen will be at the Coal Ash Management Forum on July 21 and 22 in Charlotte, North Carolina. Benson is a speaker at the event. In their discuss... »

Brine Ponds for Coal Seam Gas Operations

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By Fred Gassner – In the past decade, Australia has developed large coal seam gas (CSG) resources.  Golder has been closely involved in the water management part of this development, with the temporary storage of shallow groundwater that is liberated as part of the gas extraction process. The groundwater is saline and the soils generally are highly dispersive so most of the extracted water is stor... »

Additional Details on Coal Ash Management Forum

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During the past week, Geosynthetica has interviewed waste management operators, utilities, design engineering firms, geosynthetics manufacturers, and fabricators and installers about coal combustion residuals (CCRs). The interviews are part of a series of stories we will publish on the sector and participants in the Coal Ash Management Forum, which takes place July 21 and 22 in Charlotte, North Ca... »

Coal Ash Management Forum Program

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The Environmental Research & Education Foundation (EREF) and the National Waste & Recycling Association (NWRA) are holding the Coal Ash Management Forum July 21 and 22 in Charlotte, North Carolina. The event features a 1.5-day technical program that will take participants through a comprehensive range of topics: Perspectives on CCR Management Current Research on Coal Combustion Residuals G... »

Concrete Canvas Wins Major LNG Contract in Australia

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Concrete Canvas has won a major contract to supply its Geosynthetic Cementitious Composite Mat (GCCM) for one of Australia’s largest resource projects: the Wheatstone liquefied natural gas (LNG) plant in Western Australia. Worth more than US$1M, the contract supplies more than 32,000 m2 of Concrete Canvas® GCCM (CC) for a range of erosion control measures. The work is part of the long-term s... »

Reinforcing a Coke Landfill Barrier System

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By Jimmy Thomas and Sam Bhat – Upgrading bitumen from oil sands operations can produce a coke byproduct. In the case described here, it was a predominantly carbonaceous granular material which required environmentally sound disposal in a lined facility. It was known that the coke landfill needed an impervious geosynthetic barrier and a leachate collection system at the base; but deeper investigati... »

Propex Adds Wesley Michael for CCR Market

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Propex GeoSolutions is increasing its profile in the coal combustion residuals market. The company announced the addition of Wesley Michael as its CCR Market Segment Manager. Michael is an energy industry veteran who brings considerable project management and coordination experience in CCR regulatory compliance. His previous work at Talen Energy included inspection, operations, and reporting for a... »

HUESKER Announces an Additional Coal Ash Webinar

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HUESKER launched a series of “mini-webinars” this year, succinct (<30 min) engineering discussions on various geosynthetic applications and materials. January’s coal ash webinar was so well-attended that the company has announced an additional date for the live session: March 2 at 2:00 pm EST.   REGISTER ONLINE DOWNLOAD COAL ASH FLYER (PDF) These sessions are free to atte... »

A Re-Energized Propex GeoSolutions Hits the Road

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After forming two new sales groups—Geotextile Sales and Erosion Control & Specialty Solutions—Propex GeoSolutions continues to reinvigorate its business. The company has announced a more ambitious face-to-face presence at industry shows. This includes three stops in February: American Coal Ash Association (ACAA) Winter Meeting – Tampa, Florida, February 2 – 4 Golf Industry Show (GIS) – San Die... »

Four HUESKER Webinars Announced

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The HUESKER webinars have established a good following. The company has announced three more for February and one for March. These concise, free, engineering sessions, all of which are less than 30 minutes, will address pavement interlayers, geotextile-encased columns, mining reinforcement and safety, and coal ash engineering with geosynthetics. The coal ash session (March 2) is a repeat of a high... »

Brawler Adds 7-Layer Blown Film Line

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Brawler Industries continues growing. The company has invested significantly in its geomembrane capabilities and capacity in the past year. This week, it announced the addition of a 7-layer blown film line. The move expands what Brawler can offer for agriculatural, construction, and environmental barrier systems. CEO John Keating noted that the line’s addition, as with the company’s other upgrades... »

HUESKER on Coal Ash and Geosynthetics

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The January 2016 GeoConnect Newsletter from HUESKER has a strong focus on coal ash and geosynthetics, on the updated coal combustion residual (CCR) regulations in the United States and the many solutions the sector is receiving from geosynthetics industry. The company’s focus includes a feature column and a breakdown of relevant products. It also held a successful, free, mini-webinar (< 30 min)... »

HUESKER Adds Four Mini-Webinars in January

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Webinars have grown significantly in their use for technical knowledge transfer, engineering training, and product and application introduction. HUESKER, which has run a successful series of hour-long webinars, is unveiling a series of mini-webinars in January. These 20-minute sessions, followed by an open question period, will focus on hot sectors (e.g., coal ash), reinforcement products (Fortrac... »

Brawler Re-Invests in Its Geomembrane Manufacturing

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In May 2014, Brawler Industries acquired In-Line Plastics, LC. The move extended Brawler’s geomembrane manufacturing and fabrication abilities, joining In-Line’s large Houston facility with the acquiring company’s plant in Montana and two other facilities in Texas. This year, Brawler added an additional $10 million investment in capacity and capabilities in Houston. The company a... »

HUESKER Seeks Agriculture Business Unit Sales Manager

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North Carolina-based HUESKER inc. seeks an experienced Sales Division Manager. The position will be responsible for managing and overseeing the company’s sales in the growing Agriculture Business Unit. The position territory includes NAFTA and Central America. The successful candidate should have previously held a sales management position in a company selling, promoting and marketing related prod... »

CQA Solutions Adds Partner from Palo Verde Work

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The high-level geomembrane installation at the Palo Verde Nuclear Generating Station (2009 – 2013) has been well documented, particularly for its “Zero Leaks” approach. Glen Toepfer of CQA Solutions, Ltd. was instrumental on the CQA side of meeting that enormous goal. His company has now announced the addition of Mr. Shabbir Pittalwala as a consulting partner. Pittalwala was also closely involved ... »

Reinforcing Scotland’s Strathy North Wind Farm

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Nearly 100,000m2 of geogrids have been utilized in the wide-scale stabilization of site access roads for the North Strathy Wind Farm in the Scottish Highlands. Situated near Strathy on the north coast in Sutherland, more than 18km of access roads have been installed to construction and long-term access to the 33 turbines. The Scottish ministries approved the 68 MW development in 2011, and in 2013 ... »

Geosynthetics Support Wind Energy’s Rapid Growth

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Since 2008, the wind energy industry in the United States has attracted more than $100 billion in private investment. While the first three quarters of 2013 were slow amidst uncertain due to uncertainty around legislative support, the fourth quarter of 2013 added more capacity than the first three quarters combined; and in 2014, that growth continued. The April 2015-published US Wind Industry Annu... »

Shale Gas Risk Assessment and Geosynthetics

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Solmax, an international manufacturer of geosynthetic technologies, has published a paper on risk assessment for the shale gas industry and implications for geosynthetics. A version of this case study was presented in February at the Geosynthetics 2015 conference in Portland, Oregon. DOWNLOAD A COPY (via Solmax) Authored by Mathieu Cornellier, P.E., and Daniel Tan, P.E., the paper addresses frac t... »