Amritha, A.S.Manu, B.2026-02-052018Applied Water Science, 2018, 8, 5, pp. -21905487https://doi.org/10.1007/s13201-018-0778-7https://idr.nitk.ac.in/handle/123456789/25010The Fenton’s oxidation process has been found to be a simple and economical method for the treatment of nitroaromatic compounds in water. In the present study, the iron extracted from the laterite soil was used as a catalyst and optimization of pH, hydrogen peroxide concentration and iron concentration was studied for different initial concentrations of 2-nitroaniline (2-NA), 3-nitroaniline (3-NA) and 4-nitroaniline (4-NA). The optimum pH obtained was 2.5 for 2-NA and 3-NA and 3 for 4-NA. The maximum removal efficiency obtained was 85.3%, 84.3% and 98.7% for 0.5 mM initial concentration at a hydrogen peroxide concentration of 3.5 mM, 4.5 mM and 5 mM for 2-NA, 3-NA and 4-NA, respectively, with a constant iron concentration of 0.05 mM. © 2018, The Author(s).Aromatic compoundsCatalystsHydrogen peroxideOxidationSoilsWater treatmentFenton’s oxidationHydrogen peroxide concentrationInitial concentrationIron concentrationsIron from laterite as a catalystLaterite soilsNitroanilinesNitroaromatic compoundOxidation process]+ catalystIroncatalystconcentration (composition)degradationhydrogen peroxideironlateriteoxidationpH