Recovery of activated carbon
OwnerMilton Manesinventor
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Abstract
Activated carbon employed for removing weakly held contaminants such as organic chemicals from water, e.g., drinking water, can be recovered or regenerated by back flushing with iodine in water or an organic solvent and then the iodine recovered by reducing it to iodide and the iodide rinsed out of the carbon and reoxidized to iodine. The process can also be used to recover pure organic compounds adsorbed on the carbon.
Claims17
A process of recovering or regenerating activated carbon which is at least partially loaded with an organic chemical adsorbed thereon comprising passing a solution of iodine in an aqueous or organic solvent through the carbon to displace the organic chemical by iodine.
A process of recovering an organic compound adsorbed on activated carbon comprising passing a solution of iodine in a solvent for the organic compound through the carbon to displace the organic compound by iodine and then recovering the organic compound from its solution in said solvent.
Dependencies are inferred from the claim text.