Water Conservation Science and Engineering

, Volume 4, Issue 2–3, pp 89–112 | Cite as

Optimization of Fenton and Photo-Fenton-Based Advanced Oxidation Processes for COD Reduction of Petrochemical Wastewater: Application of Response Surface Methodology

  • Maryam Nazrifar
  • Nader BahramifarEmail author
  • Habibollah Younesi
Original Paper


Two advance oxidation processes (AOPs), namely Fenton and photo-Fenton, was used to purify the Karun Petrochemical wastewater. In order to optimize the maximum chemical oxygen demand (COD) reduction, the effects of initial pH, H2O2, and FeSO4·7H2O doses and the exposure contact time of UV light were investigated during the purification process using response surface methodology (RSM) under the central composite design (CCD). The results revealed the fact that the optimum conditions for the photo-Fenton were obtained to be at initial pH of 4, H2O2 dose of 8 ml/l and FeSO4·7H2O dose of 2.33 g/l and time of 93.75 min. Under these circumstances, the highest COD removal of 83.51% was obtained. In the Fenton process, the optimum conditions at initial pH of 4, H2O2 dose of 8 ml/l, FeSO4·7H2O dose of 3.25 g/l, and UV exposure time of 92.39 min were achieved. Under these conditions, the COD removal was 73.09%.


Petrochemical industries wastewater treatment Advanced oxidation Fenton Photo-Fenton 



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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Environmental Sciences, Faculty of Natural ResourcesTarbiat Modares UniversityNoorIran

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