Hybrid of Fenton and sequencing batch reactor for petroleum refinery wastewater treatment

B.H. Diya’uddeen; Shima Rahim Pouran; A.R. Abdul Aziz; S.M. Nashwan; Wan Mohd Ashri Wan Daud; M.G. Shaaban

Journal of Industrial and Engineering Chemistry, Vol.25, 186-191, May, 2015

DOI10.1016/j.jiec.2014.10.033 Export Citation

Hybrid of Fenton and sequencing batch reactor for petroleum refinery wastewater treatment

B.H. Diya’uddeen^{1, 2}, Shima Rahim Pouran², A.R. Abdul Aziz^{2, †}, S.M. Nashwan³, Wan Mohd Ashri Wan Daud², and M.G. Shaaban³

¹National Research Institute for Chemical Technology, PMB 1052 Zaria, Nigeria
²Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
³Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia

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The treatment of high-strength petroleum refinery effluent (PRE) with [BOD5]/[COD]0 = 0.14 was investigated using combined Fenton-sequencing batch reactor (SBR). The effect of [H2O2]:[COD]0 molar ratio on biodegradability enhancement was investigated. Fenton optimal conditions were: [H2O2]:[COD]0 of 6, [H2O2]:[Fe0] of 10 and pH = 3.0 that could remove 76.5%, 45% and 96% of COD, TOC and phenol and increased biodegradability ratio to 0.37. The pretreated PRE subjected to SBR for one single cycle of 10 h. The results revealed the effectiveness of hybrid Fenton?SBR system in treating PRE where the complete treatment of the PRE was attained by this system.

Keywords:Advanced oxidation process;Biodegradability enhancement;Hybrid system;Zero-valent iron

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