Geomembrane Selection and Use in Evaporation Ponds

Part 2: Evaporation Pond Operation and Geomembrane Performance Criteria

Geomembrane Selection and Use in Evaporation Ponds

Part 1:  Evaporation Pond Operation and Containment Requirements

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? 

Geomembrane chemical compatibility vs. permeability, Part 2

What are the factors affecting permeability of polymers?

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.

A recent article, written on behalf of the Water and Wastewater Equipment Manufacturers Association (WWEMA), detailed the complexity of contracts in today’s world. The article addresses the problems in the context of the water and wastewater industry, which includes a substantial portion of the geomembrane industry.