Bioremediation of oil-contaminated soil using Candida catenulata and food waste

Joo, Hung-Soo; Ndegwa, Pius M.; Shoda, Makoto; Phae, Chae-Gun

doi:10.1016/j.envpol.2008.05.026

Cited by 116 publications

(53 citation statements)

References 37 publications

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“…In addition, efficiency of bioremediation is a function of the microbial viability in the natural environment [12]. Factors, such as nitrogen, phosphorus, and microorganism presence, have been reported to affect bioremediation; for example, limiting nitrogen is reported to enhance bioremediation [37,50,51].…”

Section: Natural Bioattenuation and Enhanced Bioremediationmentioning

confidence: 99%

“…These technologies may involve the addition of electron acceptors or electron donors to stimulate naturally occurring microbial populations (biostimulation) or could be the introduction of specific microorganisms to enhance the biodegradation of the target compound (bioaugmentation). Bioremediation technologies have been developed for soils and coastal areas using the addition of nutrients and microbes [10][11][12][13]. However, it is known that biodegradation efficiencies of petroleum hydrocarbons in soil can be limited by physicochemical as well as biological factors, such as nutrients, pH, temperature, moisture, oxygen, soil properties, and contaminant concentration, number and type or species of microorganisms [14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Factorial Designs Application to Study Enhanced Bioremediation of Soil Artificially Contaminated with Weathered Bonny Light Crude Oil through Biostimulation and Bioaugmentation Strategy

Agarry¹,

Ogunleye²

2012

JEP

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The objective of this study was designed to evaluate the effects of biostimulation and bioaugmentation amendment agents (NPK fertilizer, Tween 80 and mixed culture) on the bioremediation of tropical soil samples artificially contaminated with Weathered Bonny Light Crude Oil (WBLCO). Response Surface Methodology (RSM) with Box Behnken Design (BBD) was used with three levels and three factors of NPK fertilizer (2 -6 g), Tween 80 (5 -15 mg/l) and mixed culture (0.5 -1.5 g/l) as independent variables and WBLCO removal as dependent variable (response) in a six weeks remediation period. The results showed that the rate of WBLCO removal generally increased with increase in the amount of NPK fertilizer, Tween 80 and mixed culture (biomass), respectively. A statistically significant (P < 0.0001) second-order quadratic regression model for WBLCO removal (using design-expert statistical program (v. 6.0.8)) with a coefficient of determination, R (=0.9996) was obtained. Numerical optimization technique based on desirability function was carried out to optimize the bioremediation process. The optimum values for biostimulation and bioaugmentation amendment agents to achieve a predicted maximum WBLCO removal of 84.88 percent were found to be: NPK fertilizer, 4.25 g; Tween 80, 10.22 mg/l and mixed culture, 0.46 g/l. At this optimum point, the observed WBLCO removal was found to be 83.79 percent. The statistical analyses and the closeness of the experimental results and model predictions show the reliability of the regression model and thus, biostimulation and bioaugmentation of indigenous microbial density and activity can reduce remediation period of petroleum hydrocarbon contaminated environment and subsequently the cost of remediation.

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Section: Natural Bioattenuation and Enhanced Bioremediationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Factorial Designs Application to Study Enhanced Bioremediation of Soil Artificially Contaminated with Weathered Bonny Light Crude Oil through Biostimulation and Bioaugmentation Strategy

Agarry¹,

Ogunleye²

2012

JEP

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“…This observation indicates the role and importance of intrinsic or autochthonous microorganisms in the biodegradation process of organic contaminants present in the environment [40]. That is, the efficiency of bioremediation is a function of the microbial viability in the natural environment [46]. Nonetheless, the interaction between the NPK and oxygen release compound (hydrogen peroxide) in the amended contaminated soil suggest to impact on the intrinsic microbial populations a higher growth rate and thus higher count and higher hydrocarbon degradation as compared to inorganic NPK fertilizer or oxygen release compound being used alone/singly.…”

Section: Removal Of Total Petroleum Hydrocarbonsmentioning

confidence: 99%

Biodegradation of Bitumen in Soil and Its Enhancement by Inorganic Fertilizer and Oxygen Release Compound: Experimental Analysis and Kinetic Modelling

Agarry¹

2014

J Microb Biochem Technol

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“…Mohajeri et al (2010) and Agarry and Ogunleye (2012b) showed that natural attenuation removed 9-12.6 and 44.78 per cent of crude oil after 60 and 42 days remediation periods, respectively. Bioremediation efficiency is a function of the microbial viability in the natural ecological system (Joo et al, 2008) and their viability is also dependent on some factors such as nutrient availability. As presented in Table 4, the reduction in TPH content of soil microcosms containing amendments was much higher in the same remediation period.…”

Section: Soil and Animal Wastes Parametersmentioning

confidence: 99%

Evaluation of the effects of inorganic and organic fertilizers and activated carbon on bioremediation of soil contaminated with weathered crude oil

Agarry¹

2018

Journal of Applied Sciences and Environmental Management

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ABSTRACT:The objective of this study was designed to evaluate the effects of nutrients (inorganic NPK fertilizer and organic fertilizer) and adsorptive amendment agents (activated carbon) as well as their interactions on bioremediation of soil contaminated with Weathered Crude Oil (WECO). The organic fertilizer was made up of cattle dungs, pig dungs and poultry droppings mixtures. Box Behnken Design (BBD) of Response Surface Methodology (RSM) with three levels and three factors was used having inorganic NPK fertilizer (3 -5 g), activated carbon (20 -40g) and organic fertilizer (30 -50 g) as independent variables and percentage WECO degradation as dependent variable (response) in a four weeks remediation period. Results of the study showed that WECO removal rate in soil is invariably dependent on the amount of nutrient and adsorptive agents. The optimum amount of nutrient and adsorptive amendment agents obtained to achieve a predicted maximum WECO removal of 66.24% are: inorganic NPK fertilizer, 4.19 g; activated carbon, 35.42 g and organic fertilizer, 48.94 g. At this predicted optimum amount, validation experiment revealed that 65.55% of WECO removal was achieved. Statistical analyses revealed the closeness of the experimental results to model predictions which thus show the reliability of the quadratic regression model. Therefore, organic and inorganic nutrients as well as adsorptive amendment alone and/or in combination enhances soil indigenous microbial density and activity which thereby accentuates petroleum hydrocarbons biodegradation and subsequently reduces the period of bioremediation and remediation cost.

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Bioremediation of oil-contaminated soil using Candida catenulata and food waste

Cited by 116 publications

References 37 publications

Factorial Designs Application to Study Enhanced Bioremediation of Soil Artificially Contaminated with Weathered Bonny Light Crude Oil through Biostimulation and Bioaugmentation Strategy

Factorial Designs Application to Study Enhanced Bioremediation of Soil Artificially Contaminated with Weathered Bonny Light Crude Oil through Biostimulation and Bioaugmentation Strategy

Biodegradation of Bitumen in Soil and Its Enhancement by Inorganic Fertilizer and Oxygen Release Compound: Experimental Analysis and Kinetic Modelling

Evaluation of the effects of inorganic and organic fertilizers and activated carbon on bioremediation of soil contaminated with weathered crude oil

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