Impermeable covers serve a multitude of purposes depending on client needs. They can be used in the collection and storage of biogas, elimination of odors, heat conservation, rainwater exclusion and preventing evaporative loss.
In recent years, environmental initiatives to reduce greenhouse gas emissions (e.g., methane (CH4), and carbon dioxide (CO2)) from agricultural, industrial, and municipal waste have augmented the demand for impermeable covers. Carbon Emission Reduction (CER) projects require trapping and eliminating methane (a major greenhouse gas contributor) via combustion in a flare or in a generator to produce electricity for use at the facility. EFI specializes in originating this type of CER project utilizing our impermeable cover system expertise as a component of an anaerobic digester.
Technological improvements over the time have allowed an assortment of impermeable membrane types to be developed. Depending on waste stream compatibility, this allows a greater choice of material and cost balancing for our clients. Commonly used materials are: high-density polyethylene (HDPE), linear-low density polyethylene (LLDPE), polypropylene (PP), reinforced polypropylene (PPR), polyvinyl chloride (PVC), XR-5®, and ethylene propylene diene monomer (EPDM). Other specialty membranes are available. EFI will work with you to determine the best and most cost-effective material to meet your needs.
