Kinetic Study of Oxidation of Nitrophenol Present in Waste Water using Ferrous Sulphate

The detoxification of wastewater containing nitro aromatic compounds is very difficult due to its resistance to oxidation. Therefore, it becomes important for the chemical industries to apply an efficient pre-treatment method to reduce the level of these compounds. In this study, Fenton oxidation treatment of industrial waste water containing nitro-phenol with Ferrous Sulphate is reported. Kinetic study of de-colorization and degradation reactions in terms of the effect of doses of Fe2+ H2O2 and contact time is studied. The maximum COD, total organic carbon and colour removal efficiency is found to be 93%, 80% and 99%, respectively in 2 h at 132.3 mM H2O2 concentration and 10.74 mM Fe2+ dose.