Since posting our first blog addressing the recent interest in exposed Geomembrane covers, discussion around the topic has continued throughout the industry. More specifically, the conversation often revolves around the same question: How can certain geomembranes be made to work for exposed applications? 

In October 2022, the U.S. Environmental Protection Agency (EPA) announced $2 million in research grant funding as part of their Lagoon Wastewater Treatment Plan. The grants are one component of the EPA’s Lagoon Wastewater Treatment Action Plan, a broad initiative to assist small, rural, and tribal communities with the utilization of lagoon wastewater systems.

Geomembrane chemical compatibility vs. permeability, Part 3

How do I use polymer structure data to evaluate geomembrane selection?

Geomembrane chemical compatibility vs. permeability, Part 2

What are the factors affecting permeability of polymers?

Geomembrane chemical compatibility vs. permeability, Part 1

How does permeability occur in an impermeable geomembrane?

What are the key issues in writing “or-equal” geomembrane specifications?

Part 2. An example of an “or-equal” spec gone bad and how it applies to geomembrane specifications.

What are the key issues in writing “or-equal” geomembrane specifications?

Part 1. How are “or-equal” specs used in the construction industry?

Nothing is indestructible, and that includes a geomembrane. While they are designed as a barrier against liquid, there are a variety of mechanical activities that will prevent a geomembrane from functioning as intended. Plus, these activities will also adversely affect the longevity of the geomembrane as well.

One way to classify secondary containment of stored industrial liquids is either permanent or portable. Both routinely use the same type of geomembrane as the primary containment layer. In this blog, we will compare the two applications and look at the principal ways geomembrane use is the same and how it differs in permanent vs. portable secondary containment.