Bioremediation and Biorestoration of a Crube Oil-Contaminated Freshwater Wetland on the St.Lawrence River

Venosa, Albert D.; Lee, Kenneth; Suidan, Makram T.; Garcia-Blanco, Susana; Cobanli, Susan E.; Moteleb, Moustafa; Haines, John; Tremblay, Gilles H.; Hazelwood, Melynda

doi:10.1080/10889860290777602

Cited by 57 publications

(48 citation statements)

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“…Hydrocarbons degrade much more rapidly under aerobic conditions (Atlas 1981;Cerniglia 1992;Hambrick et al 1980). Due to slow degradation in anaerobic sediments commonly found in marsh environments (Venosa et al 2002), petroleum hydrocarbons may persist in wetlands for many years (Burns & Teal 1979;Macko et al 1981). Artificially increasing the oxygen tension in marsh subsurface is difficult due to the slow diffusion of oxygen and the high oxygen demand in saturated marsh sediment.…”

Section: Introductionmentioning

confidence: 99%

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Biostimulation for the Treatment of an oil-contaminated Coastal Salt Marsh

et al. 2006

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A field study was conducted on a coastal salt marsh in Nova Scotia, Canada, during the summer of 2000. The objective of the study was to assess the effectiveness of biostimulation in restoring an oil-contaminated coastal marsh dominated by Spartina alterniflora under north-temperate conditions. Three remediation treatments were tested with two additional unoiled treatments, with and without added nutrients, serving as controls. This research determined the effectiveness of nitrogen and phosphorus addition for accelerating oil disappearance, the role of nutrients in enhancing restoration in the absence of wetland plants, and the rate at which the stressed salt marsh recovered. Petroleum hydrocarbons were analyzed by gas chromatography/mass spectrometry (GC/MS). Statistically significant treatment differences were observed for alkanes but not aromatics in sediment samples. No differences were evident in above-ground vegetation samples. GC/MS-resolved alkanes and aromatics degraded substantially (>90% and >80%, respectively) after 20 weeks with no loss of TPH. Biodegradation was determined to be the main oil removal mechanism rather than physical washout.

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Section: Introductionmentioning

confidence: 99%

“…Also, the capacity of many wetland plant species to aerate the sediment rhizosphere has been hypothesized. However, a recent study involving Scirpus pungens concluded that oxygen introduced into the rhizosphere was insufficient to support biodegradation of the stressor (Venosa et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Biostimulation for the Treatment of an oil-contaminated Coastal Salt Marsh

et al. 2006

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“…Combining (16), (18), and (19), dividing by Δ Δ Δ , and taking the limit as the three distances become zero give…”

Section: International Journal Of Chemical Engineeringmentioning

confidence: 99%

In Situ Bioremediation of Crude Petroleum Oil Polluted Soil Using Mathematical Experimentation

Ojewumi

Emetere

Babatunde

et al. 2017

International Journal of Chemical Engineering

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Mathematical modelling of in situ (on site) bioremediation of crude petroleum polluted soil was investigated. An unsteady state mathematical model based on bulk flow of oil through the soil and molecular diffusion through the pores of the soil was developed. The parabolic partial differential equation developed was resolved into a system of ordinary differential equations (ODEs) by orthogonal collocation method and the necessary boundary condition was used. The resultant system of ODE was solved using fourth-order Runge-Kutta method. The simulated data gave a good agreement with experimental data.

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“…If nutrients are applied post-spill in an effort to mitigate oil residency and impacts, as sometimes recommended (e.g., Venosa et al 2002), then the effects of oil and nutrients on marsh stability might become a synergistically stronger or weaker agent of change. Some key information is required, therefore, to separate out the effects of N, P and oil on marsh stability.…”

Section: Introductionmentioning

confidence: 99%

The effects of N, P and crude oil on the decomposition of Spartina alterniflora belowground biomass

Turner

Bodker

2015

Wetlands Ecol Manage

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We conducted a laboratory experiment to examine how the decomposition of particulate belowground organic matter from a salt marsh is enhanced, or not, by different mixtures of crude oil, nitrogen (N), or phosphorus (P) acting individually or synergistically. The experiment was conducted in 3.8 L sampling chambers producing varying quantities of gas whose volume was used as a surrogate measure of organic decomposition under anaerobic conditions. Gas production after 28 days, from highest to lowest, was ?NP = ?N [ [ [ ?P, or ?oil. The gas production under either ?P or ?oil conditions was indistinguishable from gas production in the control chamber. Nitrogen, not phosphorus, or ?NP, was the dominant factor controlling organic decomposition rates in these experiments. The implication for organic salt marsh soils is that shoreline erosion is enhanced by salt marsh oiling, presumably by its toxicity, but not by its effect on the decomposition rates of plant biomass belowground. Nutrient additions, on the other hand, may compromise the soil strength, creating a stronger disparity in soil strength between upper and lower soil layers leading to marsh loss. Nutrient amendments intended to decrease oil concentration in the marsh may not have the desired effect, and are likely to decrease soil strength, thereby enhancing marsh-towater conversions in organic salt marsh soils.

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Bioremediation and Biorestoration of a Crube Oil-Contaminated Freshwater Wetland on the St.Lawrence River

Cited by 57 publications

References 0 publications

Biostimulation for the Treatment of an oil-contaminated Coastal Salt Marsh

Biostimulation for the Treatment of an oil-contaminated Coastal Salt Marsh

In Situ Bioremediation of Crude Petroleum Oil Polluted Soil Using Mathematical Experimentation

The effects of N, P and crude oil on the decomposition of Spartina alterniflora belowground biomass

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