Calgon Carbon constructed the Big Sandy Plant in 1961 and it has since became the world's largest producer of granular activated carbon.
12.
The price could rise $ 100 or more a year per hookup at the smaller systems to treat with ozone and granular activated carbon.
13.
During early implementation of the 1974 Safe Drinking Water Act, EPA officials developed a rule that proposed requiring drinking water treatment systems to use granular activated carbon.
14.
It has invested nearly a million dollars at its Corbalis plant to install a filtration system that uses an effective combination of sand and granular activated carbon.
15.
Techniques such as aeration, flocculation, and granular activated carbon absorption could combat this and these techniques were known but were not universally utilized in United States water supplies.
16.
It has spent $ 60 million to build the world's largest water facility using granular activated carbon, or GAC, considered by EPA the " best available technology " for removing organic contaminants.
17.
The advanced treatment facilities use two-stage powdered activated carbon ( PAC ), addition of lime, two-stage recarbonation, sand filtration, ozonation, granular activated carbon ( GAC ), and chlorination for purifying the water.
18.
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.
19.
Most dialysis units now depend on granular activated carbon ( GAC ) filters, two of which should be placed in series so that chloramine breakthrough can be detected after the first one, before the second one fails.
20.
In addition, ex situ technology of liquid phase carbon adsorption is employed, where granular activated carbon ( GAC ) is used to eliminate low levels of perchlorate and pretreatment may be required in arranging GAC for perchlorate elimination.
