Pumped Storage Facility Revitalized by GCL Barrier

On by Geosynthetica
News and Articles

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, ... »

Video: ILT Coal Ash Containment Installation at Reid Gardner

On by Geosynthetica
News and Articles

International Lining Technology began work on a coal ash containment project at the Reid Gardner Generating Station in late November 2016. The 557-MW plant sits on 480 acres near Moapa, Nevada and has been undergoing closure activities in recent years. Three of the sites four units (totally 300 MW of capacity) have service records extending back in the 1960s and 1970s. The site operators began dec... »

CCR-Oriented GSE CoalDrain Geocomposite Earns Patent

On by Geosynthetica
News and Articles

The expansion of coal combustion residuals handling and storage work in the United States, in the wake of new regulations, has led to a strong growth in engineered materials and services developed for CCR work. GSE Environmental developed the GSE CoalDrain, a highly engineered geocomposite designed specifically for coal combustion residuals. The US Patent Office has awarded the company its officia... »

Coal Ash Rules and Engineering Webinar, November 15

On by Geosynthetica
News and Articles

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... »

GSE to Expand Geonet and Geocomposite Manufacturing Capacity

On by Geosynthetica
News and Articles

The Kingstree, South Carolina manufacturing facility of GSE Environmental is about to get even busier. The company announced on August 22 that it is adding a new geonent and geocomposite manufacturing line to the site. The move, which will support production of GSE’s full suite of biplanar and triplanar products, is in response to surging market demand for engineered drainage solutions. The South ... »

Polymer-Enhanced GCL for Wet Process Ash Impoundment

On by Geosynthetica
News and Articles

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

On by Geosynthetica
News and Articles

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

On by Geosynthetica
News and Articles

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... »

Additional Details on Coal Ash Management Forum

On by Geosynthetica
News and Articles

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

On by Geosynthetica
News and Articles

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... »

New Coal Ash Rules: Bigger Business for Facility Closure

On by Geosynthetica
News and Articles

By Lee Buchsbaum – The sweeping new federal rules on handling and storage of coal ash may lead to the single largest increase in the geosynthetics market in 20 years. The US Environmental Protection Agency conducted a long study on the health risks and technical strengths of nearly 700 coal ash facilities at power plants nationwide. The resulting rule change, which takes effect in May 2015, ... »