Geotextile compatibility w/typical MSW landfill leachate

February 1, 2013

From the GMA Techline RE: Geotextile compatibility w/typical MSW landfill leachate We need to respond to an Environmental Protection Agency (EPA) request for additional documentation that shows geotextile and geomembrane compatibility with typical landfill leachate. The request is associated with a municipal solid waste (MSW) landfill expansion permit application in Illinois. We are able to …

Crown joins growing list achieving NTPEP certification

January 24, 2013

Geotextile manufacturer undergoes supervised audit Georgia-based Crown Resources announced in a press release this week its certificate of compliance achievement from the National Transportation Product Evaluation Program (NTPEP). This compliance document earned in December 2012, underscores Crown’s capabilities to better serve NTPEP and other transportation projects throughout the U.S. NTPEP is a program under the …

ASTM announces geotextiles workshop in Mumbai

December 19, 2012

Free one-day event is Jan. 22 ASTM International announced in a Dec. 18 press release that it is partnering with the Bombay Textile Research Association (BTRA), to conduct a one-day workshop on geotextiles, Jan. 22, 2013, from 10 a.m. to 5 p.m., at BTRA’s facilities in Mumbai, Maharashtra, India. The release noted that geotextiles are …

Innovative geotextile bag technology helps restore reed bed at Salhouse Broad

October 23, 2012

In east-central England, geotextile bags are filled with river sediment to restore eroded riverbank Reports from the U.K. describe how huge woven geotextile bags—8.5m wide with a circumference of 18.6m—are filled with dredged sediment to help restore a reed bed as it was in 1946. The bags are filled with 3,000m³ of sediment dredged from …

Massive soil reinforcement at Cherry Island extends landfill’s use for decades

October 1, 2012

Finalist for 2012 award for Outstanding Civil Engineering Achievement By Ron Bygness The challenge Cherry Island Landfill, operated by the Delaware Solid Waste Authority (DSWA), has been used for municipal solid-waste disposal since 1985. Built on an old dredge disposal site at the confluence of the Delaware and Christina rivers in Wilmington, Del., the subsurface …

TenCate receives patent for geotextile tube filling system

August 29, 2012

Geoport is new mechanical injection for tube containers TenCate Geosynthetics Americas announced in an Aug. 28 press release that it has developed a rigid, mechanical injection system—Geoport—that virtually eliminates unwanted stress at geotextile-tube insertion ports. The release noted that “within the geotextile tube industry, producing a strong and secure textile injection port system has always …

New resin to produce ultra-resistant textiles

August 21, 2012

Kynar 705 from Arkema An Aug. 20 press release has announced a new high-flow polyvinylidene fluoride (PVDF) homopolymer grade, intended for use in standard commercial spinning equipment to produce ultra-resistant textiles for water, chemical filtration, and architectural applications. French chemical company, Arkema, collaborated with Lenzing Plastics GmbH, a Germany-based supplier of fluoropolymer filaments and fibers …

Full-scale dredging this summer at Onondaga Lake

June 5, 2012

Geotextile tubes are instrumental in the $451 million Superfund remediation project in upstate New York Dredging and capping of contaminated sediments in Onondaga Lake is set to begin this summer, according to a press release from the New York State Department of Environmental Conservation (DEC). The $451 million Superfund remediation project in Syracuse, N.Y., has …

Cross section of the Hetaoyu reinforced soil wall

June 1, 2012

A number of readers have responded with requests after seeing and reading about the 2011 International Achievement Award of Excellence winner, “Geotextile-reinforced soil retaining wall for Hetaoyu Mine coal processing plant” in the February/March issue of Geosynthetics. Most of the inquiries came from engineers asking for diagrams or cross sections of this distinctive structure built …

Polypropylene vs. polyester

From the GMA Techline RE: Polypropylene vs. polyester? I was hoping you may be able to provide some guidance regarding the material use of geotextile cushion within landfills. The manufacturer has suggested that their geotextiles are polyester, however we typically nominate a nonwoven, needlepunched, polypropylene geotextile. (Alaa | Australia) Reply: From the very beginning of geotextiles, …