Biodegradation of waste-lubricating petroleum oil in a tropical alfisol as mediated by animal droppings

Adesodun, J. K.; Mbagwu, J.S.C.

doi:10.1016/j.biortech.2007.10.031

Cited by 128 publications

(82 citation statements)

References 11 publications

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“…Figures 1 and 2 presents the result of the fit of the bioremediation data obtained from the mechanic workshop soil samples (motorcar mechanic workshop soil and motorcycle mechanic workshop soil, respectively) to the 1 st order bioremediation kinetics (Yeung et al, 1990;Adesodun and Mbagwu, 2008). Figures 3 and 4 presents the GC chromatogram of the diluted motorcycle mechanic workshop soil at the beginning and end of the study, whereas Table 2 presents the result of the MS comparison.…”

Section: Resultsmentioning

confidence: 99%

“…All samples were prepared in duplicates and maintained at 60% water holding capacity throughout the period of the study. Starting from day zero and then every week, the TPH of all samples was followed using a gravimetric method (Adesodun and Mbagwu, 2008): ten grams of soil was collected and dried at room temperature for 72 h. Five grams of the soil was placed in 200 milliliters beaker into which was added 150 milliliters of toluene. The mixture was stirred continuously for 30 min, left to stand in a fume cupboard for 2 h and then filtered using Whatman No 42 filter paper.…”

Section: Preparation Of Samplesmentioning

confidence: 99%

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Earthworm-assisted bioremediation of petroleum hydrocarbon contaminated soil from mechanic workshop

Ameh¹,

Mohammed-Dabo²,

Ibrahim³

et al. 2013

Afr. J. Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Section: Preparation Of Samplesmentioning

confidence: 99%

Earthworm-assisted bioremediation of petroleum hydrocarbon contaminated soil from mechanic workshop

Ameh¹,

Mohammed-Dabo²,

Ibrahim³

et al. 2013

Afr. J. Environ. Sci. Technol.

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“…The extent of hydrocarbon utilization in the diesel oil was estimated gravimetrically and spectrophotometrically [Adesodun and Mbagwu, 2008]. Soil samples (approximately 10 g) was taken from each microcosm and put into a 50 mL flask and 20 mL of n-hexane was added.…”

Section: Extraction and Determination Of Total Petroleum Hydrocarbonmentioning

confidence: 99%

Biodegradation of Diesel Oil in Soil and Its Enhancement by Application of Bioventing and Amendment With Brewery Waste Effluents as Biostimulation-Bioaugmentation Agents

Agarry¹,

Latinwo²

2015

J. Ecol. Eng.

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The purpose of this study is to investigate and evaluate the effects of natural bioattenuation, bioventing, and brewery waste effluents amendment as biostimulation-bioaugmentation agent on biodegradation of diesel oil in unsaturated soil. A microcosm system was constructed consisting of five plastic buckets containing 1 kg of soil, artificially contaminated or spiked with 10% w/w of diesel oil. Biodegradation was monitored over 28 days by determining the total petroleum hydrocarbon content of the soil and total hydrocarbon degrading bacteria. The results showed that combination of brewery waste effluents amendment and bioventing technique was the most effective, reaching up to 91.5% of diesel removal from contaminated soil; with the brewery waste effluents amendment (biostimulation-bioaugmentation), the percentage of diesel oil removal was 78.7%; with bioventing, diesel oil percentage degradation was 61.7% and the natural bioattenuation technique resulted in diesel oil removal percentage be not higher than 40%. Also, the total hydrocarbon-degrading bacteria (THDB) count in all the treatments increased throughout the remediation period. The highest bacterial growth was observed for combined brewery waste effluents amendment with bioventing treatment strategy. A firstorder kinetic model was fitted to the biodegradation data to evaluate the biodegradation rate and the corresponding half-life time was estimated. The model revealed that diesel oil contaminated-soil microcosms under combined brewery waste effluents amendment with bioventing treatment strategy had higher biodegradation rate constants, k as well as lower half-life times, t 1/2 than other remediation systems. This study showed that the microbial consortium, organic solids, nitrogen and phosphorus present in the brewery waste effluents proved to be efficient as potential biostimulation-bioaugmentation agents for bioremediation processes of soils contaminated with diesel oil.

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“…contaminated soil which was amended with 1 : 0.3 sewage sludge when compared to those amended with 1 : 0.1 under the same conditions 28) . Adesodun and Mbagwu (2008), who showed highest biodegradation rate in oil contaminated soil amended with pig wastes, had highest percentage of biodegradation throughout the study period 35) .…”

Section: Kinetics Of Diesel Rmoval and Half-lifementioning

confidence: 94%

Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

Dadrasnia

Pariatamby

2013

J. Jpn. Petrol. Inst.

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The phytoremediation potential of Dracaena reflexa to remediate diesel contaminated soil was determined in a greenhouse study. D. reflexa was planted in soil contaminated with different concentrations of diesel fuel (1, 2.5 and 5 wt%). 5 (wt%) of three different organic wastes [tea leaf (TL), soy cake (SC) and potato skin (PS)] were mixed with the soil and monitored for 270 days. The results of the biodegradation of oil and its fractions showed a reduction of 90 % and 98 % of total petroleum hydrocarbons (TPHs) in soil amended with SC, at 2.5 % and 1 % fuel, respectively. It was observed that in the non-cultivated polluted soil the TPHs, were reduced by 24-27 %. Soil amended with SC provided the greatest diesel fuel loss when compared to other organic waste supplements. D. reflexa roots did not accumulate hydrocarbons from the soil, but the number of hydrocarbon utilizing bacteria was high in the rhizosphere, thus suggesting that the mechanism of the oil degradation was via rhizodegradation. This study has shown that D. reflexa amended with organic wastes has a potential for biodegrading hydrocarboncontaminated soil.

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Biodegradation of waste-lubricating petroleum oil in a tropical alfisol as mediated by animal droppings

Cited by 128 publications

References 11 publications

Earthworm-assisted bioremediation of petroleum hydrocarbon contaminated soil from mechanic workshop

Earthworm-assisted bioremediation of petroleum hydrocarbon contaminated soil from mechanic workshop

Biodegradation of Diesel Oil in Soil and Its Enhancement by Application of Bioventing and Amendment With Brewery Waste Effluents as Biostimulation-Bioaugmentation Agents

Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

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