Biodegradation of Total Petroleum Hydrocarbon from Al-Daura Refinery Wastewater by Rhizobacteria


  • nisreen mazin makkiya al-khwarizmi college of engineering, university of Baghdad
  • Israa abdul wahab al-baldawi Department of Biochemical Engineering/ Al-Khwarizmi College of Engineering / University of Baghdad



petroleum wastewater; biodegradation; Phragmites australis; rhizobacteria.


Due to the deliberate disposal of industrial waste, a great amount of petroleum hydrocarbons pollute the soil and aquatic environments. Bioremediation that depends on the microorganisms in the removal of pollutants is more efficient and cost-effective technology. In this study, five rhizobacteria were isolated from Phragmites australis roots and exposed to real wastewater from Al-Daura refinery with 70 mg/L total petroleum hydrocarbons (TPH) concentration. The five selected rhizobacteria were examined in a biodegradation test for seven days to remove TPH. The results showed that 80% TPH degradation as the maximum value by Sphingomonas Paucimobilis as identified with Vitek® 2 Compact (France).


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How to Cite

makkiya, nisreen mazin and al-baldawi, I. abdul wahab (2019) “Biodegradation of Total Petroleum Hydrocarbon from Al-Daura Refinery Wastewater by Rhizobacteria”, Journal of Engineering, 26(1), pp. 14–23. doi: 10.31026/j.eng.2020.01.02.