| abstract |
(57) Abstract: An industrial wastewater containing a dye is treated to decolorize and remove COD components. An acid dye, in the presence of a solid catalyst (at least one selected from the group of Ru, Pd, Rh and Pt), A method in which a waste water containing a basic dye, a direct dye, a sulfur dye or a disperse dye is subjected to a wet oxidation treatment with an oxygen-containing gas under a pressure that maintains the liquid phase of the waste water. |