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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 […]
How do you select geosynthetics for biogas containment systems?
July 27th, 2021
By Hermann Ng, Senior Technical Sales Manager, APAC FIGURE 1 Photograph courtesy of Solmax Biogas production from anaerobic waste stabilization ponds, typically used for treatment of wastewater from farms and industry, is a smart, sustainable, eco-responsible option. A key component of these systems is the geosynthetic material used for the sealing system. Why are polyethylene geomembranes a better choice and how do you select the right material? […]
A minitube blanket for landfill gas collection and containment
August 1st, 2019
By Stephan Fourmont, Pascal Saunier and Toraj Ghofrani Landfill gas (LFG) is produced during the decomposition of putrescible material in landfills. Often referred to as biogas, LFG is a source of odors and fugitive greenhouse gas (GHG) emissions. LFG is typically 40%–60% methane, which is 25 times more potent to affect climate change than carbon […]
Bio-digester supplies energy to 3,000 farms
January 11th, 2016
The principle of action of the digestive system of a cow served as a model to create a container that receives organic waste, mostly livestock manure, where it is mixed with millions of bacteria to obtain natural gas integrated mostly of methane, called biogas, as well as a high-quality bio-fertilizer. The biodigester, commercially called Biobolsa […]