Waste effluents from leather tanning industry contain a large quantities of sulphide salts which cause pollution in land and water channels and when come in contact with some acidic media, release a highly toxic gas hydrogen sulphide into air. Hence to protect the environment, it is desirable that sulphide content from tannery wastes should either be removed or converted to some harmless compound before leafing the waste into some water channel. In this work aerial oxidation of sulphide has been studied by designing model experiments in laboratory. Basically oxidation was carried out by bubbling air through sulphide solution and a number of concerned parameters like the role of catalyst, temperature and time have been studied. Real sulphide samples from tanneries were also successfully oxidized by employing optimum conditions.