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Article

Removal of Polycyclic Aromatic Hydrocarbons in a Heterogeneous Fenton Like Oxidation System Using Nanoscale Zero-Valent Iron as a Catalyst

1
Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
2
Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
3
Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 5825, Doha, Qatar
*
Authors to whom correspondence should be addressed.
Received: 19 June 2020 / Revised: 17 July 2020 / Accepted: 23 July 2020 / Published: 29 August 2020
(This article belongs to the Special Issue Wastewater Engineering and Environmental Catalysis)
Oil and gas effluents contains highly toxic and harmful organic pollutants. Therefore, it is necessary to eliminate and/or reduced the concertation of organic pollutants to a technologically acceptable levels before their discharge into water streams. This study investigates the application of nanoscale zero-valent iron (nZVI), and hydrogen peroxide (H2O2) for removal of organic pollutants from real oily produced water. Batch studies were performed and effect of different operating parameters, including concentration of nZVI and H2O2, pH and reaction time were studied. Moreover, optimization of independent variables was performed using central composite design (CCD) in response surface methodology (RSM). The experimental set up provided maximum removal efficiencies of 89.5% and 75.3% for polycyclic aromatic hydrocarbons (PAHs) and chemical oxygen demand (COD), respectively. The optimum values of independent variables such as concentrations of nZVI, and H2O2, contact time and pH were obtained as 4.35 g/L, 1.60 g/L, 199.9 min and 2.9, respectively. Predicted PAHs and COD removal efficiencies at the optimum values of independent variables were found as 89.3% and 75.7%, respectively which are in line with the experimental values. The study indicates that application of heterogeneous Fenton like oxidation system using nZVI as a catalyst is an efficient treatment method for removal of organic pollutants from real produced water. View Full-Text
Keywords: produced water; polycyclic aromatic hydrocarbon; COD; nanoscale zero-valent iron; response surface methodology produced water; polycyclic aromatic hydrocarbon; COD; nanoscale zero-valent iron; response surface methodology
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MDPI and ACS Style

Haneef, T.; Ul Mustafa, M.R.; Rasool, K.; Ho, Y.C.; Mohamed Kutty, S.R. Removal of Polycyclic Aromatic Hydrocarbons in a Heterogeneous Fenton Like Oxidation System Using Nanoscale Zero-Valent Iron as a Catalyst. Water 2020, 12, 2430. https://0-doi-org.brum.beds.ac.uk/10.3390/w12092430

AMA Style

Haneef T, Ul Mustafa MR, Rasool K, Ho YC, Mohamed Kutty SR. Removal of Polycyclic Aromatic Hydrocarbons in a Heterogeneous Fenton Like Oxidation System Using Nanoscale Zero-Valent Iron as a Catalyst. Water. 2020; 12(9):2430. https://0-doi-org.brum.beds.ac.uk/10.3390/w12092430

Chicago/Turabian Style

Haneef, Tahir, Muhammad R. Ul Mustafa, Kashif Rasool, Yeek C. Ho, and Shamsul R. Mohamed Kutty 2020. "Removal of Polycyclic Aromatic Hydrocarbons in a Heterogeneous Fenton Like Oxidation System Using Nanoscale Zero-Valent Iron as a Catalyst" Water 12, no. 9: 2430. https://0-doi-org.brum.beds.ac.uk/10.3390/w12092430

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