Bioremediation of Oil Spills on Land

Brown, Lonn; Cologgi, D.L.; Gee, K.F.; Ulrich, Ania C.

doi:10.1016/b978-0-12-809413-6.00012-6

Cited by 26 publications

(10 citation statements)

References 72 publications

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“…It is reckoned to use less energy and it is not harmful to the environment, with reduced residue disposal problems [21]. Land farming treatment is the application of calculated organic and inorganic substrates on contaminated soil in order to completely mineralize the toxic substances in the soil [22,23]. Land farming is a concept that entails nutriments addition and replication of microbes, geared towards increasing the number and growth of microorganisms in order to accelerate bioremediation rate [20,24,25].…”

Section: Introductionmentioning

confidence: 99%

“…Land farming techniques has been practiced in some regions of the world to bioremediate crude oil contamination in soils to minimize the health risk on human and the environment at large [27,28]. It has been used successfully to remove petroleum hydrocarbons at large scale [23,29], and because of its simplicity in implementation, Niger Delta has also employed it. Unfortunately, with the handful of its application within Nigeria, there is still dearth of information on the e cient practice of land farming treatment for crude oil contaminated soils which can result in effective remediation.…”

Section: Introductionmentioning

confidence: 99%

“…The effectiveness of land farming can be enhanced when environmental circumstances allow the growth and activity of microbes, and this depends on varying some certain environmental parameters such as pH, moisture content, nutrient availability and so on [23,30]. Factorial design (FD) is normally used in screening variables (both dependent and independent) and also in optimizing response surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Factorial Design Study of Total Petroleum Contaminated Soil Treatment Using Land Farming Technique

Okonofua

Lasisi

Atikpo

2020

Preprint

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Land farming technique was used to treat hydrocarbon contaminated soil collected from a crude oil spill sites in Edo State, Nigeria. Calibrated standard auger was used to collect soil samples from the site at depth below 30 cm. The samples were characterized and classified. Cow dung and NPK fertilizer were added as additives to complement the nutriments of the soil samples before total petroleum hydrocarbon quantification and remediation procedures. Factorial design was applied to vary the input parameters such as pH, mass of substrate, moisture content and turning times of land farming so to ascertain the optimal conditions for the procedure. The result revealed that the in-situ TPH value was 5,000 mg/kg on the average and after 90 days of treatment, the turning rate, pH, moisture content and mass of substrate had 82.79%, 4.36%, 0.48% and 0.046% contributions respectively to land farming treatment. Numerical optimization techniques applied in the optimum point for land farming input parameters to achieve predicted maximum removal of 98.60% were evaluated as pH, mass of substrate, moisture content and turning rate to be 6.01, 1 kg, 10% and 5 times in a week respectively. TPH removed at this optimum point was 97.83% reducing from 5,000 mg/kg to 645.9 kg/mg. The high coefficient of determination (r2 = 0.9865) as observed in the closeness of predicted and experimental values reflects the reliability of the model and hence, land farming practice with close attention on turning rate as revealed by this study, is recommended for TPH contaminated soil remediation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Factorial Design Study of Total Petroleum Contaminated Soil Treatment Using Land Farming Technique

Okonofua

Lasisi

Atikpo

2020

Preprint

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“…Lipids and carbohydrates are the main waste constituents generated by the food industry. In addition, they cause damages to the environment due to the formation of oily films on aquatic surfaces, which disrupts oxygen diffusion, and cloggings mainly caused by the emulsification with organic matter, and for oil methanization, which worsens the greenhouse effect [ 1 – 2 ]. Since, one liter of lipid waste can compromise approximately 1 million liters of natural water, mainly when the oil is subjected to elevated temperatures, since even oils considered healthy at room temperature can become toxic when they are heated [ 3 – 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the ability to neutralize such molecules is essential to provide adequate metabolic functioning; metabolism itself has developed mechanisms to identify and degrade or turn these molecules into inert compounds. Thus, bioremediation emerges as biotechnological application of these processes aiming at neutralizing target molecules; it can be accomplished through the use of microorganisms in fermentative processes or through the direct use of enzymes in the catalysis of the toxic element transformation reaction [ 1 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of cooking oil waste using lipases from wastes

et al. 2017

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Cooking oil waste leads to well-known environmental impacts and its bioremediation by lipase-based enzymatic activity can minimize the high cytotoxic potential. In addition, they are among the biocatalysts most commercialized worldwide due to the versatility of reactions and substrates. However, although lipases are able to process cooking oil wastes, the products generated from this process do not necessarily become less toxic. Thus, the aim of the current study is to analyze the bioremediation of lipase-catalyzed cooking oil wastes, as well as their effect on the cytotoxicity of both the oil and its waste before and after enzymatic treatment. Thus, assessed the post-frying modification in soybean oil and in its waste, which was caused by hydrolysis reaction catalyzed by commercial and home-made lipases. The presence of lipases in the extracts obtained from orange wastes was identified by zymography. The profile of the fatty acid esters formed after these reactions was detected and quantified through gas chromatography and fatty acids profile compared through multivariate statistical analyses. Finally, the soybean oil and its waste, with and without enzymatic treatment, were assessed for toxicity in cytotoxicity assays conducted in vitro using fibroblast cell culture. The soybean oil wastes treated with core and frit lipases through transesterification reaction were less toxic than the untreated oils, thus confirming that cooking oil wastes can be bioremediated using orange lipases.

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Various Remediation Measures for Groundwater Contamination

Ojha

Tiwary

2021

Groundwater Geochemistry

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Bioremediation of Oil Spills on Land

Cited by 26 publications

References 72 publications

Factorial Design Study of Total Petroleum Contaminated Soil Treatment Using Land Farming Technique

Factorial Design Study of Total Petroleum Contaminated Soil Treatment Using Land Farming Technique

Bioremediation of cooking oil waste using lipases from wastes

Various Remediation Measures for Groundwater Contamination

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