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What is a GAC systems? A filter with granular activated carbon is a proven option to remove certain chemicals, particularly organic chemicals from water. GAC systems also can be used to remove chemicals that give objectionable odors or tastes to water such as hydrogen sulfide (rotten eggs odor) or chlorine.
Adsorption is the primary mechanism by which GAC works and the primary reason it is widely used to reduce undesirable taste, odor and color and to improve the safety of drinking water by also effectively removing common disinfection byproducts, organic contaminants like chlorinated solvents and other industrial pollutants, pesticides, and select heavy metals such as lead and mercury. Modern GAC products are made from coconut shell, coal, wood, lignite and/or petroleum products. The selection of carbon source is often driven by the contaminant reduction performance targeted by the manufacturer
