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Welding HDPE geomembranes with biogas present
April 1st, 2022
Q: We are a Brazilian company specializing in biogas plants. We have built a big lagoon biodigester with a high-density polyethylene (HDPE) geomembrane cover. Now the cover is leaking liquid contained in the lagoon: We are organizing the repair procedure, and we would like to first investigate state-of-art practices and procedures for welding HDPE geomembranes […]
Dewatering of sludge from a sewage treatment plant with geotextile tubes
June 1st, 2021
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 of surface water resources, must be treated and kept […]
McCartney letter and IGS-NA happenings
August 1st, 2019
IGS North America (IGS-NA) welcomes two new members to the board of directors. The board voted to add Kate Patterson of Klohn Crippen Berger as a co-opted board member. Patterson is a civil and water resources engineer in Vancouver, British Columbia, Canada, and brings a new perspective to the board of directors on geosynthetics in […]
McCartney letter and IGS-NA happenings
June 1st, 2019
By John McCartney I am excited to start my two-year term as the president of IGS North America. I am joined by an active and engaged set of board members, including John Allen (president-elect), Ranjiv Gupta (treasurer), Ben Leshchinsky (secretary and vice president), Kate Patterson (vice president), Bruno Herlin (vice president), Tim Stark (vice president), John […]
IGS introduces the Zornberg Lecture
April 11th, 2019
The International Geosynthetics Society (IGS) announced the creation of the “Zornberg Lecture,” established in recognition of IGS past president Dr. Jorge Zornberg’s major contributions to the geosynthetics discipline, of his leadership in conceiving and organizing the first IGS GeoAmericas conference, and of his continued fostering of the IGS presence across the Americas. Jorge Zornberg. Photograph […]
Safe storage of mining waste focus of report
August 1st, 2018
In December 2017, the United Nations Environment Programme (UN Environment) and GRID-Arendal, an organization that supports environmentally sustainable development in partnership with UN Environment and other collaborators, published “Mine Tailings Storage: Safety Is No Accident.” The report recommends mining companies adopt simple steps to reduce environmental destruction and death by changing the way they store […]
Fibertex Nonwovens makes a strategic acquisition in Brazil
July 25th, 2018
Headquartered in Aalborg, Denmark, Fibertex Nonwovens, a subsidiary of Schouw & Co., acquired all activities in the Brazilian-owned, nonwovens manufacturer DUCI. “For many years Fibertex Nonwovens has consolidated itself as one of the world’s leading manufacturers of specialized nonwovens,” said Jørgen Bech Madsen, CEO of Fibertex Nonwovens. “Now we have obtained a unique opportunity for […]