Patent ID: 6797184
Filing Date: 2004-09-28
Classification: B01J,C02F

Abstract:
A method for oxidizing and/or decomposing organic and/or inorganic oxidizable substances in waste water by wet oxidation with a use of a catalyst, which comprises:oxidizing and/or decomposing the oxidizable substances with an oxygen containing gas in the presence of the catalyst under pressure, 3 which produces an exhaust gas, wherein the waste water remains in a liquid phase at a temperature of 50 to less than 170Â° C., wherein the catalyst contains activated carbon and at least one element selected from the group consisting of Pt, Pd, Rh, Ru, Ir and Au, and wherein the catalyst contains pores having a pore diameter in a range of 0.1 to 10 &mgr;m and a specific pore volume in a range of 0.1 to 0.8 ml/g; and controlling the concentration of oxygen in the exhaust gas in a range of 0 to 5 vol %.