Granular activated carbons are mostly made from Coconut Shells on petroleum

 coke, bituminous coal or lignite. Granular activated carbon is used in continuous

process in areas like water treatment(drinking & effluent water), removal of mercury

from effluents or alkali cells, solvent recovery,  gold recovery, removal of odour,

 gas masks, as catalyst carrier, for decholorination of water, purification & separation

of gases, kitchen hoods, dry cleaning etc.