Avoiding Whales in Anaerobic Digesters

On by Geosynthetica
News and Articles

By Ian D. Peggs, P.E. – In 2014, shortly after being placed in service, one of two geomembrane-lined and covered anaerobic digesters generated extensive whales—“bubbles” in the lining system. Attempts to remove the apparent gas from under the cover were made unsuccessfully until it was realized that the cover was being uplifted by gas under the liner. Within two or three days, there were whales se... »

VIDEO: Geomembrane Fabrication Leads to Rapid Install

On by Geosynthetica
News and Articles

Geomembrane fabrication can provide significant cost savings for geosynthetic barrier installations. EPI shares a video from a wastewater treatment plant project. GEOMEMBRANE FABRICATION ADVANTAGES Prefabrication of geomembrane panels can provide significant cost savings. It allows sections of panel to be joined to create very large pieces, which lead to greater coverage on site as rolls are deplo... »

Looking Back: The Geosynthetics Risk Management Program

On by Geosynthetica
News and Articles

In 2004, Geosynthetica’s Director Elizabeth Peggs, Lara Costa, and founder Dr. Ian D. Peggs, P.E. (I-CORP International) created a white paper that proposed a Geosynthetics Risk Management and Loss Control Program (GRMP). Targeting insurers of construction projects, the program aimed to establish the need for expert design review to prevent costly failures that might result from improper use... »