The physical character of expanded perlite lends itself to a variety of special purposes—including various applications in the broad category of water quality management. For a detailed explanation of perlite expansion see information sheet: Why Perlite Works Storm Water Filtration Due to its high surface area, neutral pH and irregular, porous surface texture, expanded perlite is ideally suited for a variety …
Perlite as a Sludge Absorbent
When perlite ore is expanded by exposure to controlled heating, it grows up to 20 times its original volume and takes on a foam-like cellular internal structure – essentially clusters of microscopic glass bubbles. Fine grades of perlite are mostly broken portions of these clusters, exhibiting a very large surface area, lending themselves to the efficient absorption of liquids. For a …
Perlite and Sustainability
Sustainability Fact Sheet The Perlite Institute defines sustainability as the process of making decisions and taking actions to create economic, environmental and social conditions that generate value for the largest number of people, today and for generations to come. These decisions and actions are based on continuous reviews of: Protection of Resources and the Environment Perlite products help protect land, …
Health Effects of Perlite
The perlite industry is conscious of its societal responsibility to test their products and to determine what, if any, health effects may be associated with them. The industry is committed to producing safe products. Background and Uses of Perlite Perlite has been mined, processed, and used safely for over fifty years. Grades of perlite from a vast variety of sources …