Effect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 °C

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dc.contributor.authorZhuang, Mobing
dc.contributor.authorAbulikemu, Gulizhaer
dc.contributor.authorCampo, Pablo
dc.contributor.authorPlatten, William E.
dc.contributor.authorSuidan, Makram T.
dc.contributor.authorVenosa, Albert D.
dc.contributor.authorConmy, Robyn N.
dc.contributor.departmentDepartment of Civil and Environmental Engineering
dc.contributor.facultyMaroun Semaan Faculty of Engineering and Architecture (MSFEA)
dc.contributor.institutionAmerican University of Beirut
dc.date.accessioned2025-01-24T11:26:59Z
dc.date.available2025-01-24T11:26:59Z
dc.date.issued2016
dc.description.abstractThis article reports biodegradation rates for a commercial dispersant, JD-2000, South Louisiana crude oil (SLC) alone, and SLC dispersed with JD-2000 at 5 and 25 °C. Results from the biodegradation experiments revealed that Component X, a chemical marker for JD-2000, rapidly degraded at both temperatures. The application of JD-2000 decreased by half the overall biodegradation rate of aliphatic compounds at 25 °C. At 5 °C, a residual fraction consisting of iso- and n-alkanes (C29-C35) persisted after 56 d. The combination of dispersant and higher temperature resulted in faster removal rates for 2- and 3-ring polycyclic aromatic hydrocarbons. When compared with Corexit 9500, our results suggest that the chemistry of the surfactant (or surfactants) in JD-2000 might have favored oil dissolution (substrate transport to the aqueous phase) as an uptake mechanism over adhesion, which requires direct contact of the biomass with the oil. © 2015 Elsevier Ltd.
dc.identifier.doihttps://doi.org/10.1016/j.chemosphere.2015.08.040
dc.identifier.eid2-s2.0-84953742920
dc.identifier.pmid26414737
dc.identifier.urihttp://hdl.handle.net/10938/26746
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofChemosphere
dc.sourceScopus
dc.subjectBiodegradation
dc.subjectCorexit 9500
dc.subjectCrude oil
dc.subjectDispersants
dc.subjectJd-2000
dc.subjectSurfactant
dc.subjectAlkanes
dc.subjectBiodegradation, environmental
dc.subjectLouisiana
dc.subjectPetroleum
dc.subjectPolycyclic hydrocarbons, aromatic
dc.subjectSurface-active agents
dc.subjectTemperature
dc.subjectParaffins
dc.subjectPetroleum transportation
dc.subjectPolycyclic aromatic hydrocarbons
dc.subjectSurface active agents
dc.subjectAlkane
dc.subjectDispersant
dc.subjectPolycyclic aromatic hydrocarbon
dc.subjectAliphatic compound
dc.subjectBiodegradation experiments
dc.subjectBiodegradation rate
dc.subjectResidual fraction
dc.subjectSubstrate transports
dc.subjectPah
dc.subjectPollutant removal
dc.subjectArticle
dc.subjectBiodegradability
dc.subjectComparative study
dc.subjectControlled study
dc.subjectCrystallization
dc.subjectIsomer
dc.subjectMicrobial adhesion
dc.subjectMicrobial degradation
dc.subjectMicrocosm
dc.subjectMolecular weight
dc.subjectNonhuman
dc.subjectPhysical chemistry
dc.subjectRate constant
dc.subjectSolubility
dc.subjectTemperature sensitivity
dc.subjectBioremediation
dc.subjectChemistry
dc.subjectDrug effects
dc.subjectIsolation and purification
dc.subjectMetabolism
dc.titleEffect of dispersants on the biodegradation of South Louisiana crude oil at 5 and 25 °C
dc.typeArticle

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