Air oxidation of aqueous sulphide solutions in packed columns

Studies about the air oxidation of aqueous sulphide solutions in packed col umns are described. Several factors affecting the process are studied. Afte r reaching to steady state in various conditions, the sulphide concentratio ns of samples collected from the column outlet are spectrophotometrically d etermined and the oxidation yields are calculated by using these values. It is observed that the oxidation yield is increased with decreasing concentr ation and the presence of catalyst.