Not to be confused with Calgon, a soap company.
Calgon Carbon Corporation is a Pittsburgh, Pennsylvania based company that manufactures and markets products that remove contaminants and odors from liquids and gases, both for industrial, municipal, and consumer markets. Calgon Carbon's product lines typically use activated carbon in various forms, UV light technology, or ion exchange technology, and the company is the largest producer of granular activated carbon (GAC) in the world. The company also offers reactivation services, wherein activated carbon can be recycled.
Originally formed as the Pittsburgh Coke & Chemical Company in the 1940s, the company's main operations are currently centered in North America with branches overseas such as Chemviron Carbon in Europe, Calgon Carbon Japan KK in Japan, Calgon Carbon Thailand Ltd.