Patent ID: 6902679
Filing Date: 2005-06-07
Classification: C02F,Y02W,Y10S

Abstract:
1. In a process for the wet oxidation of a waste stream containing organic carbon and organic or inorganic nitrogen-containing pollutants using a nitrate as the denitrifying agent under conditions wherein at least a portion of the organic carbon is converted to carbon dioxide and at least a portion of organic or inorganic nitrogen-containing pollutants are converted to nitrogen, the improvement which comprises: initially removing organic or inorganic nitrogen-containing pollutants using a nitrate salt of an aliphatic amine or an aromatic amine as the denitrifying agent at a temperature from 180 to 300° C. and a pressure sufficient to maintain liquid phase conditions; and, then, effecting further removal of the organic carbon containing pollutant by treatment with activated carbon, chemical oxidation, or biotreatment.