Source apportionment in oil spill remediation

Journal of Environmental Monitoring : JEM
Jorge MuñozClaudio M Bravo-Linares

Abstract

A pipe rupture during unloading led to a spillage of 350-700 tonnes of Caño Limon, a light sweet crude oil, into San Vicente Bay in 2007. Initial clean-up methods removed the majority of the oil from the sandy beaches although some oil remained on the rocky shores. It was necessary for the responsible party to clean the spilled oil even though at this location there were already crude oil hydrocarbons from previous industrial activity. A biosolvent based on vegetable oil derivatives was used to solubilise the remaining oil and a statistical approach to source apportionment was used to determine the efficacy of the cleaning. Sediment and contaminated rock samples were taken prior to cleaning and again at the same locations two days after application of the biosolvent. The oil was extracted using a modified USEPA Method 3550B. The alkanes were quantified together with oil biomarkers on a GC-MS. The contribution that Caño Limon made to the total oil hydrocarbons was calculated from a Partial Least Squares (PLS) analysis using Caño Limon crude oil as the source. By the time the biosolvent was applied, there had already been some attenuation of the oil with all alkanes <C(16) removed. After treatment, more of the mid-chain length co...Continue Reading

References

Nov 16, 2002·Environmental Science & Technology·Roberto Frontera-SuauPamela J Morris
Jun 8, 2006·Biodegradation·Susana Garcia-BlancoJohn R Haines
Dec 6, 2006·Environmental Science & Technology·William A BurnsKeith R Parker
Jan 25, 2007·Biodegradation·Yan JiangZongding Hu

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Citations

Oct 22, 2020·Analytical Methods : Advancing Methods and Applications·Candice C ChuaDayue Shang

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