Bacteria from spent engine-oil-contaminated soils possess dual tolerance to hydrocarbon and heavy metals, and degrade spent oil in the presence of copper, lead, zinc and combinations thereof

2014 ◽  
Vol 65 (1) ◽  
pp. 207-215 ◽  
Author(s):  
Churchill Oriomah ◽  
Olawale Olufemi Adelowo ◽  
Abimbola Olumide Adekanmbi
Keyword(s):  
Heavy Metals ◽  
Contaminated Soils ◽  
Engine Oil ◽  
Spent Engine Oil ◽  
Lead Zinc ◽  
Copper Lead

scholarly journals Bioremediation of Spent Engine Oil on Selected Contaminated Soils within Ilorin Metropolis

2020 ◽  
Vol 8 (1) ◽  
pp. 91-104
Author(s):  
Elizabeth Adeyinka AJIBOYE ◽  
Hikmat Omolara SULAYMAN ◽  
Abdullahi Taiwo AJAO
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Organic Carbon ◽  
Contaminated Soils ◽  
Physicochemical Parameters ◽  
Soil Samples ◽  
Engine Oil ◽  
Biochemical Tests ◽  
Spent Engine Oil ◽  
Before And After

The research aimed to investigate the bioremediation of spent engine oil on selected contaminated soils within Ilorin metropolis. To achieve this, soil samples were collected from three (3) mechanic workshops along Taiwo axis within the metropolis. The soil samples were then subjected to bioremediation using the land-farming approach. The physicochemical parameters of the soil samples before and after bioremediation were analyzed using standard methods. Bacteria were isolated using standard procedures and identified using biochemical tests and molecular methods. Results for the physicochemical parameters of the soil samples before bioremediation include particle size (all sandy in nature); pH (6.00 ± 0.14 - 6.20 ± 0.14); Organic carbon (14.65 ± 3.20 - 17.54 ± 1.87), Organic matter (33.50 ± 0.85 - 43.45 ± 9.12) and heavy metals (ND - 11.74 ± 0.07). Values after bioremediation for pH, organic carbon, organic matter and heavy metals were 8.25 ± 0.07 - 8.90 ± 0.14, 13.07 ± 0.05 - 13.25 ± 0.84, 37.25 ± 1.06 - 44.80 ± 1.13, ND - 9.40 ± 0.04 respectively. Values for bacterial count before and after bioremediation of the soil samples were 8.00  1.41 - 67.50 ± 2.12 x 105 CFU/mL and 6.50 ± 2.12 - 164.00 ± 11.31 x 105 CFU/mL respectively. Bacterial isolates were identified as Pseudomonas sp., Enterobacter sp., Acinetobacter sp., and Bacillus sp. while the hydrocarbon-utilizing bacteria were identified as Thalassospira mesophila strain JCM 18969; Pseudomonas fluorescens F113; Siccibacter turicensis LMG 23730; Pseudomonas Zeshuii strain KACC 15471; Pseudomonas stutzeri strain CGMCC 1.1803 and Marinobacter hydrocarbonoclasticus strain ATCC 49840. In conclusion, the bacteria isolates effectively bioremediated the spent engine oil contaminated soils with a reduction of hydrocarbon pollutants.

Effect of organic amendments on the decontamination potential of heavy metals by Staphylococcus aureus and Bacillus cereus in soil contaminated with spent engine oil

2019 ◽  
Vol 3 (5) ◽  
pp. 471-484
Author(s):  
Adeniyi Adeleye ◽  
Mohammed B. Yerima ◽  
Michael E. Nkereuwem ◽  
Victor O. Onokebhagbe ◽  
Peter G. Shiaka ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Staphylococcus Aureus ◽  
Bacillus Cereus ◽  
Organic Amendments ◽  
Engine Oil ◽  
Spent Engine Oil

scholarly journals Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

2019 ◽  
Vol 112 ◽  
pp. 03020
Author(s):  
Mihaela Niţu ◽  
Augustina Pruteanu ◽  
Despina Maria Bordean ◽  
Carmen Popescu ◽  
Gyorghy Deak ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Transfer Coefficient ◽  
Human Body ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Tomato Fruit ◽  
Human Consumption ◽  
Tomato Fruits ◽  
Lead And Zinc ◽  
Copper Lead

Heavy metals in contaminated soils have benefited from a considerable attention due to the possible risks for the human body. The current study has investigated the accumulation and transfer coefficient for three heavy metals (Cu, Pb, Zn) found in the contaminated soil with three concentrations (c1=1.5%, c2=3.0%, c3=4.5%, c4=6.0%), obtained by mixing the three metals, in the tomato fruit. The highest accumulation in the tomato fruits was recorded for zinc, then copper and the smallest for lead, for all four concentrations used. The transfer coefficient decreases as the concentration of heavy metals increases, so that for high heavy metals concentrations, the values of the transfer coefficient are very low, and for small heavy metals concentrations in the soil, the values for the transfer coefficient are higher. The assessment of accumulation and transfer of heavy metals in the fruits of tomatoes grown in the contaminated soil has concluded that all concentrations of the copper, lead and zinc mix have shown a low risk for human consumption.

Distribution and significance of copper, lead, zinc and cadmium in the Corio Bay ecosystem

1981 ◽  
Vol 32 (2) ◽  
pp. 151 ◽  
Author(s):  
JD Smith ◽  
ECV Butler ◽  
BR Grant ◽  
GW Little ◽  
N Millis ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Nutrient Cycling ◽  
Mytilus Edulis ◽  
Water Exchange ◽  
Dry Weight ◽  
Weight Basis ◽  
Threshold Levels ◽  
Lead Zinc ◽  
Significant Interference ◽  
Copper Lead

Levels of copper, lead, zinc and cadmium in sediments, waters and mussels (Mytilus edulis) from Corio Bay (Vic.) were measured on two occasions in 1977. The bay has restricted water exchange with Port Phillip Bay and is known to have received a major input of cadmium. The respective concentrations of copper, lead, zinc and cadmium in the sediments were 2-50,2-2l0,4-398 and up to 12.6 �g/g; in the unfiltered waters, I .5-25, <0.4-11, 3.9-67 and 0.11-5.6 �g/l; and in the mussels, 4.8-21. 1.2-9.7, 105-110 and 9.8-53 �g/g on a dry weight basis. The observed levels of heavy metals are compared with threshold levels reported in the literature as causing significant interference with growth of phytoplankton and nutrient cycling by bacterial processes.

scholarly journals Optimization of nutrients requirements for bioremediation of spent-engine oil contaminated soils

2018 ◽  
Vol 24 (3) ◽  
pp. 484-494
Author(s):  
Gabriel O. Ogbeh ◽  
Titus O. Tsokar ◽  
Emmanuel Salifu
Keyword(s):  
Contaminated Soils ◽  
Engine Oil ◽  
Spent Engine Oil

scholarly journals Evaluate the Rate of Pollution in Soil using Simulink Environment

2019 ◽  
Vol 32 (1) ◽  
pp. 135 ◽  
Author(s):  
Luma N.M.Tawfiq ◽  
Mohammed A. Hasan
Keyword(s):  
Heavy Metals ◽  
Differential Equations ◽  
Mathematical Models ◽  
Contamination Sources ◽  
Simulink Model ◽  
Cobalt Nickel ◽  
Zinc Cadmium ◽  
Lead Zinc ◽  
Contamination Levels ◽  
Copper Lead

       In this paper we design a Simulink model which can be evaluate the concentration of Copper, Lead, Zinc, Cadmium, Cobalt, Nickel, Crum and Iron. So, this model would be a method to determine the contamination levels of these metals with the potential for this contamination sources with their impact. The aim of using Simulink environment is to solve differential equations individually and as given data in parallel with analytical mathematics trends. In general, mathematical models of the spread heavy metals in soil are modeled and solve to predict the behavior of the system under different conditions.

scholarly journals Phytoremediation of Heavy Metals in Spent Engine Oil-polluted Soil by Senna alata L.

2019 ◽  
Vol 12 (6) ◽  
pp. 228-234
Author(s):  
Emmanuel Chibuzo Ugwu ◽  
Alfreda Ogochukwu Nwadinigwe ◽  
Benita Chinenye Agbo
Keyword(s):  
Heavy Metals ◽  
Polluted Soil ◽  
Engine Oil ◽  
Spent Engine Oil ◽  
Senna Alata

scholarly journals EVALUATION OF PHYTO-EXTRACTION POTENTIALS AND PERFORMANCE OF FALSE SESAME (CERATOTHECA SESAMOIDES) UNDER INDUCED SOIL POLLUTION BY AUTOMOBILE LUBRICANT IN SAVANNA ECOREGION

2017 ◽  
Vol 5 (11) ◽  
pp. 355-365 ◽  
Author(s):  
Babajide ◽  
Popoola ◽  
Gbadamosi ◽  
Oyedele ◽  
Liasu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Crop Production ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Engine Oil ◽  
Nutrient Concentrations ◽  
Polluted Soils ◽  
Spent Engine Oil

While strategizing towards achieving improved soil fertility for sustainable tropical crop production, timely application of fertilizers on regular basis alone is not the University of Technology, Ogbomoso, Oyo State, Nigeria best approach, particularly on polluted soils. However, seeking for reliable natural, biological and environment friendly means of ensuring effective riddance of toxic elements or heavy metals from tropical agricultural soils is equally a worthwhile technology. An open-field potted experiment was conducted during early raining season of 2016 (March-July), at the Teaching and Research Farms of Oyo State College of Agriculture and Technology, Igboora, to investigate the effect of spent engine oil polluted soil conditions on performance and heavy metal accumulation potentials of Ceratothecasesamoides. Spent engine oil was applied at different concentrations (0.0ml, 50.0ml, 100.0ml, 150.0ml, and 200.0ml to each pot containing 7kg soil. Four pots per treatments were used. The trial was arranged in Completely Randomised Design (CRD), replicated three (3) times. Data were collected on growth parameters (number of leaves, plant height, stem girth, leaf length and leaf breadth). The data were subjected to analysis of variance (ANOVA) and Duncan Multiple Range Test (DMRT) was used to the means. Pre and post-cropping soil analyses were carried out, for determination of nutrient concentrations. Also, after the termination of the experiment, plant samples were collected from each of the pots for oven-drying followed by determination of nutrient concentrations (including the heavy metals). Oil pollution significantly affected growth and heavy metal accumulation of the test-crop. Growth decreases with increasing rate of lubricant application, while the heavy metal concentrations in the test-crop increased with increasing concentrations of the applied spent engine oil. Thus, Ceratothecasesamoides is a wild plant which could be easily exploited for its heavy metals hyper-accumulative or phyto-extractive potentials, so as to reclaim heavy metals polluted soils from toxicity, for sustainable crop production.

Gravimetric Profile of Hydrocarbon Degrading Bacterial and Fungal Isolates from Contaminated Soil Samples in Ado-Ekiti, Nigeria

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Olayinka O. Idris ◽  
◽  
Olayinka T. Ogunmefun ◽  
Cinderella N. Tuesimi
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Samples ◽  
Engine Oil ◽  
Water Retention Capacity ◽  
Trichoderma Spp ◽  
Fungal Isolates ◽  
Degrading Bacteria ◽  
Spent Engine Oil

One of the biological compounds limiting soil water retention capacity is oil when present due to its hydro-nature. However, some microorganisms exhibit the capacity to degrade oil as a source of carbon, whereby the soil quality is retained and enhanced. Hence, the gravimetric profile of hydrocarbon degrading bacteria and fungi isolated from oil contaminated soil samples was investigated. Soil samples were collected from surface and 10m depth from six different mechanic workshops and generator sites. The pour plate technique was used to isolate the microorganisms. All pure isolates were sub-cultured using Bushnell Haas agar and the isolated bacteria were identified by their morphological and biochemical characteristics. The soil samples pH range was 4.3 - 6.4. Bacteria isolated included Pseudomonas spp., Staphylococcus spp., Microccocus spp., Acinetobacter spp., and Bacillus spp. The fungi isolated included Aspergillus spp., Rhizopus spp., Candida spp., Trichoderma spp. and Penicillium spp. Degradation of kerosene, diesel, crude oil, engine oil, and spent engine oil was allowed using Acinetobacter baumanni, P. aeruginosa, B. subtilis, and S. aureus. Gravimetric analyses were used to determine the percentage of petroleum hydrocarbon degraded by bacterial isolates. The highest percentage of degradation was between P. aeruginosa and B. subtilis. Pseudomonas aeruginosa degraded 97.4% diesel, 88.2% kerosene, 71.3% crude oil, 80.7% engine oil and 78.2% spent engine oil; while Bacillus subtilis degraded 71% diesel, 97% kerosene, 89.6% crude oil, 87% engine oil and 72.6% spent engine oil. This study revealed that bacterial and fungal isolates from oil contaminated soils exhibited the potentials to degrade oil and bioremediation using these microorganisms was possible.

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