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Removal of Arsenic From Ground Water Using Granular Activated Carbon

by Brock D. Buche,
Lawrence P. Owens, (M.ASCE),



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

Batch adsorption isotherm studies found that activated carbon (Hydrodarco, 14 X 40 mesh, American Norit) had removals of arsenic as high as 94% for a GAC dosage of 100 g/L and an initial arsenic concentration of 89 ?g/L. Kinetics of the Hydrodarco GAC showed removals of 90% for a contact time of one hour. A rapid-small-scale-column-test established that breakthrough (5 ?g/L occurred after 2.73 hours and that column exhaustion occurred after 7.72 hours.

Subject Headings: Arsenic | Water treatment | Groundwater pollution | Adsorption | Activated carbon | Pollutants | Kinetics

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