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

Advanced Journal of Graduate Research

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Field Value
 
Title Bioremediation of Spent Engine Oil on Selected Contaminated Soils within Ilorin Metropolis
 
Creator AJIBOYE, Adeyinka Elizabeth
SULAYMAN, Hikmat Omolara
AJAO, Abdullahi Taiwo
 
Subject Bioremediation
Spent engine oil
Hydrocarbon-utilizing bacteria
Mechanic workshops
Contaminated Soil
 
Description 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.
 
Publisher AIJR Publisher
 
Date 2020-06-13
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Graduate Research
 
Format application/pdf
 
Identifier https://journals.aijr.in/index.php/ajgr/article/view/2399
10.21467/ajgr.8.1.91-104
 
Source Advanced Journal of Graduate Research; Vol. 8 No. 1 (2020): July 2020; 91-104
2456-7108
10.21467/ajgr.8.1.2020
 
Language eng
 
Relation https://journals.aijr.in/index.php/ajgr/article/view/2399/309
 
Rights Copyright (c) 2020 Elizabeth Adeyinka AJIBOYE, Hikmat Omolara SULAYMAN, Abdullahi Taiwo AJAO
http://creativecommons.org/licenses/by-nc/4.0
 

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