abdel khaliek, W., Labena, A., mohamed, T., Elsawy, H., farahat, L. (2020). Microbial Corrosion of C1018 Mild Steel by A Halotolerant Consortium of Sulfate Reducing Bacteria Isolated from an Egyptian Oil Field. test, 63(4), 1461-1468. doi: 10.21608/ejchem.2019.15915.1963
wafaa abdel fattah abdel khaliek; Ahmed Labena; Tarek n mohamed; Hany Elsawy; laila a farahat. "Microbial Corrosion of C1018 Mild Steel by A Halotolerant Consortium of Sulfate Reducing Bacteria Isolated from an Egyptian Oil Field". test, 63, 4, 2020, 1461-1468. doi: 10.21608/ejchem.2019.15915.1963
abdel khaliek, W., Labena, A., mohamed, T., Elsawy, H., farahat, L. (2020). 'Microbial Corrosion of C1018 Mild Steel by A Halotolerant Consortium of Sulfate Reducing Bacteria Isolated from an Egyptian Oil Field', test, 63(4), pp. 1461-1468. doi: 10.21608/ejchem.2019.15915.1963
abdel khaliek, W., Labena, A., mohamed, T., Elsawy, H., farahat, L. Microbial Corrosion of C1018 Mild Steel by A Halotolerant Consortium of Sulfate Reducing Bacteria Isolated from an Egyptian Oil Field. test, 2020; 63(4): 1461-1468. doi: 10.21608/ejchem.2019.15915.1963

Microbial Corrosion of C1018 Mild Steel by A Halotolerant Consortium of Sulfate Reducing Bacteria Isolated from an Egyptian Oil Field

Egyptian Journal of Chemistry
Article 21, Volume 63, Issue 4, April 2020, Pages 1461-1468    PDF (1.57 M)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.15915.1963
Authors
wafaa abdel fattah abdel khaliek* 1; Ahmed Labena2; Tarek n mohamed3; Hany Elsawy4; laila a farahat5
1Process Design & Development Department, Egyptian Petroleum Research Institute
21Process Design and Development Department, Egyptian Petroleum Research Institute, Cairo, Egypt
3Faculty of Science, Tanta University, Tanta, Egypt.
4Faculty of Science, Tanta University, Tanta, Egypt
51Process Design & Development Department, Egyptian Petroleum Research Institute, Cairo, Egypt.
Abstract
In this study, a consortium of halotolerant sulfate reducing bacteria (SRB) was obtained from a water sample collected from an Egyptian oil-field. North Bahreyia Petroleum Company (NORPETCO) is one of the petroleum companies that suffer from severe corrosion. The present study aim to investigate the microbial structures of this consortium and their potential contributed to microbial corrosion. Dissimilatory sulfite reductase dsrAB gene sequences analysis indicated that the mixed bacterial consortium contained two main phylotypes: members of the Proteobacteria (Desulfomicrobium sp., Desulforhopalus sp., and Desulfobulbus sp.) and Firmicutes (Desulfotomaculum sp.). Mild steel C1018 coupons were incubated in the presence of SRB consortium for a period of 35 days, the evolution of corrosion was studied using weight loss and dissolved sulfide production of SRB consortium. Results indicated that, the corrosion rate in the presences of SRB was approximately 15 times of that for the control. Furthermore, sessile cells (biofilm) and subsequent corrosion products that developed were characterized by scanning electron microscope coupled with energy dispersive X-ray spectroscopy (EDX).
Keywords
Microbial corrosion, Sulfate-reducing bacteria, Dissimilatory sulfite reductase; dsrAB, dissolved sulfide
Statistics
Article View: 595
PDF Download: 676