Bioremediation of Oiled Beach Sediments: Assessment of Inorganic and Organic Fertilizers

Lee, Kenneth; Tremblay, Gilles H.; Cobanli, Susan E.

doi:10.7901/2169-3358-1995-1-107

Cited by 18 publications

(11 citation statements)

References 22 publications

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“…This is in line with Lee et al, (1995) who reported that organic manures have effects in stimulating crude oil degradation by increasing the total heterotrophic microbial growth and activity. This assertion is true since there was increase in heterotrophic microbial population in this study.…”

Section: Fig 8 Effects Of Treatments On the Soil Potassiumsupporting

confidence: 92%

Enhancement of crude oil polluted soil by applying single and combined cow-dung and hydrogen peroxide as remediating agents

Benson¹,

Ochekwu²,

Tanee³

2017

Journal of Applied Sciences and Environmental Management

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ABSTRACT:The study aimed at enhancing the remediationof crude oil polluted soil of the Niger Delta using cow dung and hydrogen peroxide in either single or combined forms. 5 kg of soil each was polluted with 200 ml of crude oil representing 4% w/v. Five amendment treatments labelledA-E were done in order of A (polluted soil + 1.2 kg cow dung), B (polluted soil + 1000 ml Hydrogen peroxide), C (polluted soil + 0.6 kg cow dung +500 ml hydrogen peroxide), D (polluted soil without amendment) and E (unpolluted soil without amendment).pH, conductivity, organic carbon, organic matter, phosphate, nitrate, total hydrocarbon content, potassium and microbial population were analyzed before and after remediation. The results showed that addition of cowdung and H2O2 enhanced remediation of the polluted soilespecially in treatment A and C with significant increase (p=0.05) in soil conductivity, pH and nutrients when compared to the un-amended soil. Reduction in the total hydrocarbon content (THC) was in the order of A (79.48%)>C (77.95%) >B (75.75%) >D(46%)with significant increase in hydrocarbon degrading microbes in the amended soil.The amendments have the capacities to enhance remediation of crude oil polluted soil.Also, the combined treatments did not have any advantage over the single treatment options as the use of cowdung single treatment perform best in terms of its remediation potential. Therefore, nutrient enhancement should be considered a critical factor in the remediation of crude oil polluted soil. © JASEM http://dx.doi.org/10.4314/jasem.v20i4.30

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Section: Fig 8 Effects Of Treatments On the Soil Potassiumsupporting

confidence: 92%

Enhancement of crude oil polluted soil by applying single and combined cow-dung and hydrogen peroxide as remediating agents

Benson¹,

Ochekwu²,

Tanee³

2017

Journal of Applied Sciences and Environmental Management

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“…Assuming that microbes are present, nutrient availability, especially of nitrogen and phosphorus, appears to be the most common limiting factor (494,526). Laboratory and field experiments with inorganic nitrogen and phosphate fertilizers and organic fertilizers, including fish bones, fish or animal meal, biosurfactants, and bulking agents, have shown success (68,241,371,372,428,446,458,512,635,640).…”

Section: Treatment Of Contaminated Soils and Sludgesmentioning

confidence: 99%

Recent Advances in Petroleum Microbiology

Hamme¹,

Singh

Ward

2003

Microbiol Mol Biol Rev

1,195

640

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Recent advances in molecular biology have extended our understanding of the metabolic processes related to microbial transformation of petroleum hydrocarbons. The physiological responses of microorganisms to the presence of hydrocarbons, including cell surface alterations and adaptive mechanisms for uptake and efflux of these substrates, have been characterized. New molecular techniques have enhanced our ability to investigate the dynamics of microbial communities in petroleum-impacted ecosystems. By establishing conditions which maximize rates and extents of microbial growth, hydrocarbon access, and transformation, highly accelerated and bioreactor-based petroleum waste degradation processes have been implemented. Biofilters capable of removing and biodegrading volatile petroleum contaminants in air streams with short substrate-microbe contact times (<60 s) are being used effectively. Microbes are being injected into partially spent petroleum reservoirs to enhance oil recovery. However, these microbial processes have not exhibited consistent and effective performance, primarily because of our inability to control conditions in the subsurface environment. Microbes may be exploited to break stable oilfield emulsions to produce pipeline quality oil. There is interest in replacing physical oil desulfurization processes with biodesulfurization methods through promotion of selective sulfur removal without degradation of associated carbon moieties. However, since microbes require an environment containing some water, a two-phase oil-water system must be established to optimize contact between the microbes and the hydrocarbon, and such an emulsion is not easily created with viscous crude oil. This challenge may be circumvented by application of the technology to more refined gasoline and diesel substrates, where aqueous-hydrocarbon emulsions are more easily generated. Molecular approaches are being used to broaden the substrate specificity and increase the rates and extents of desulfurization. Bacterial processes are being commercialized for removal of H2S and sulfoxides from petrochemical waste streams. Microbes also have potential for use in removal of nitrogen from crude oil leading to reduced nitric oxide emissions provided that technical problems similar to those experienced in biodesulfurization can be solved. Enzymes are being exploited to produce added-value products from petroleum substrates, and bacterial biosensors are being used to analyze petroleum-contaminated environments

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“…In addition, there is now a renewed interest in the advantages of having an organic carbon source within bioremediation agents to promote rapid bacterial growth [36]. This has lead to the recent development and testing of organic fertilizers comprised of fish meal, animal meal, and/or fish bone meal [37,38]. Theoretically, optimal nutrient concentrations can be maintained within oiled sediments for prolonged periods by the internal nutrient regeneration processes coupled with the degradation of these products.…”

Section: Addition Of Nutrientsmentioning

confidence: 99%

Bioremediation of Oil on Shoreline Environments: Development of Techniques and Guidelines

Lee

Merlin

1999

Pure and Applied Chemistry

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Over the last 20 years, the development of operational procedures to accelerate the natural biodegradation rates of oil spilled on shoreline environments has been the focus of numerous research programs. As a result, bioremediation has been demonstrated to be an effective oil spill countermeasure for use in cobble, sand beach, salt marsh, and mudflat environments. Today, studies are directed towards improving the efficacy and evaluating the ecological impacts of available bioremediation agents and/or procedures. This review describes the latest developments in bioremediation strategies and their key success factors.

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Bioremediation of Oiled Beach Sediments: Assessment of Inorganic and Organic Fertilizers

Cited by 18 publications

References 22 publications

Enhancement of crude oil polluted soil by applying single and combined cow-dung and hydrogen peroxide as remediating agents

Enhancement of crude oil polluted soil by applying single and combined cow-dung and hydrogen peroxide as remediating agents

Recent Advances in Petroleum Microbiology

Bioremediation of Oil on Shoreline Environments: Development of Techniques and Guidelines

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