Patent ID: 6419837
Filing Date: 2002-07-16
Classification: C02F,Y10S

Abstract:
A process for destroying contaminants in a contaminant-containing aqueous stream, which comprises: providing said contaminant-containing aqueous feed stream including an initial amount of at least one of a group of contaminants including perchlorates, nitrates, and nitrites;providing a reducing agent in said contaminant-containing aqueous feed stream; providing both organic and inorganic reducing agents which are soluble in the aqueous stream and when oxidized form soluble by-products heating the reducing agent-containing, contaminant-containing aqueous stream; and contacting said heated contaminant-containing aqueous stream with an oxidation-reduction catalyst for a period of time sufficient for reducing the initial amount of each of said perchlorates, nitrates, and nitrites contaminants by at least about 90%.