The application of a carrier-based bioremediation strategy for marine oil spills

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The application of recycled marine materials to develop sustainable remediation technologies in marine environment was assessed. The remediation strategy consisted of a shell carrier mounted bacterial consortium composed of hydrocarbonoclastic strains enriched with nutrients (Bioaug SC). Pilot scale studies (5000l) were used to examine the ability of Bioaug-SC to degrade weathered crude oil (10gl-1; initially 315,000±44,000mgl-1) and assess the impacts of the introduction and biodegradation of oil. Total petroleum hydrocarbon mass was effectively reduced by 53.3 (±5.75)% to 147,000 (±21,000) mgl-1 within 27weeks. 16S rDNA bacterial community profiling using Denaturant Gradient Gel Electrophoresis revealed that cyanobacteria and Proteobacteria dominated the microbial community. Aquatic toxicity assessment was conducted by ecotoxicity assays using brine shrimp hatchability, Microtox and Phaeodactylum tricornutum. This study revealed the importance of combining ecotoxicity assays with oil chemistry analysis to ensure safe remediation methods are developed. © 2014 Elsevier Ltd.




Sheppard, P. J., Simons, K. L., Adetutu, E. M., Kadali, K. K., Juhasz, A. L., Manefield, M., … Ball, A. S. (2014). The application of a carrier-based bioremediation strategy for marine oil spills. Marine Pollution Bulletin, 84(1–2), 339–346.

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