Treatment of Industrial Wastewater Using the Fenton Process

Abstract: This manuscript reports an extended laboratory-scale evaluation of homogeneous Fenton oxidation (Fe²⁺/H₂O₂) applied to a representative composite sample of chemical industry wastewater from an industrial estate. The work was carried out under optimized laboratory conditions (pH ≈ 3.0; Fe²⁺ = 10 mg/L; H₂O₂ = 100 mg/L) in batch mode. The Fenton process delivered substantial reductions in organic load (BOD: 240 → 28 mg/L; COD: 510 → 80 mg/L), turbidity, and certain inorganic constituents, while neutralization and filtration removed iron-rich precipitates. Photographs of untreated and treated samples and the sampling location are included, together with comparative graphs for key parameters.

Keywords: Fenton process; advanced oxidation; industrial wastewater treatment; hydroxyl radicals; BIS standards; sludge management.