A B S T R A C TRemoval of patent blue V dye from aqueous solutions has been investigated in the present work using air bubble-induced oxidation based on the use of glass balls. The dependency of removal of patent blue V on the operating parameters, such as initial concentration and pH has been established and it has been observed that optimum initial concentration of dye exists and also acidic conditions are favourable for enhancing the degradation. The effect of intensifying additives, such as ZnO, TiO 2 and MnO 2 as well as combination with ferrous sulphate has been investigated for the first time for the case of air bubble-induced oxidation. The maximum extent of removal (97%) of patent blue V was observed for the combined approach of air bubble-induced oxidation and ferrous sulphate, which promote the production of HO Å through the radical mechanisms. For the different oxides, the order of activity for higher removal of patent blue has been observed as TiO 2 > MnO 2 > ZnO. The present work has enabled the development of an intensified process involving use of air bubble oxidation for the treatment of dye containing wastewaters.