scholarly journals Characterization of Autochthonous Bacterial Isolates with The Potentiality to Degrade Spent Engine Oil from Contaminated Soil Area Enriched with Glycine max

2020 ◽  
Vol 24 (8) ◽  
pp. 1463-1466
Author(s):  
A.A. Enaigbe ◽  
O.S. Imade ◽  
O.A. Akpoka ◽  
E. Ufuah ◽  
O.E. Izevbuwa ◽  
...  
Keyword(s):  
Glycine Max ◽  
Contaminated Soil ◽  
Engine Oil ◽  
Bacterial Counts ◽  
Oil Spillage ◽  
Degrading Bacteria ◽  
Plate Counts ◽  
Heterotrophic Plate Counts ◽  
Hydrocarbon Utilizing Bacteria

This study was conducted to identify and characterize bacteria capable of degrading spent oil contaminated soil. The physicochemical parameters of used engine oil were analyzed according to existing standards, while the total heterotrophic plate counts (HBC) and hydrocarbon utilizing bacteria counts were ascertained with the pour plate methods using nutrient agar and minimal salt agar (MSA) media respectively. The results indicated a mean total HBC ranging from 2.86 ± 0.08 to 5.76 log10 CFU/g and mean hydrocarbon utilizing bacterial counts from 1.32 ± 0.09 to 3.82 ± 0.25 log10 CFU/g, with samples enriched with Glycine max (Soybean) recorded to have the highest bacterial counts. The phenotypic identification of the hydrocarbon utilizing bacteria as sources of carbon and energy showed the presence of two primary bacterial genera: Bacillus and Micrococcus.However, from the overall 50 counted colonies, the frequency of occurrence for Bacillus was 41 (82 %) whereas, the Micrococcus was (9) 18%. The obtained data, confirmed the breakdown capacity of autochthonous (indigenous) organisms notably; Bacillus in the reduction of pollutants linked with oil spillage. This provides for reliable and promising approach of ameliorating crude oil pollutants and its inherent threats. Keywords: Soil, spent oil, Glycine max, degrading bacteria, isolation and bioremediation

scholarly journals Biotreatability of Crude Oil Polluted Aquatic Environment Using Indigenous Hydrocarbon Utilizing Bacteria

2020 ◽  
pp. 52-62
Author(s):  
Tudararo-Aherobo Laurelta ◽  
Okotie Sylvester ◽  
Ataikiru Tega ◽  
Stephen Avwerosuoghene
Keyword(s):  
Crude Oil ◽  
Contaminated Soils ◽  
Aquatic Environment ◽  
Bacterial Counts ◽  
A Value ◽  
Degrading Bacteria ◽  
Petroleum Resources ◽  
Oil Concentration ◽  
American Society ◽  
Hydrocarbon Utilizing Bacteria

Aim: The research aims to assess the biodegradability of crude oil polluted aquatic environment using indigenous hydrocarbon degrading bacteria. Place and Duration of Study: The research was conducted in the Environmental Management and Toxicology Laboratory, Federal University of Petroleum Resources, Effurun, Delta State. Methodology: Hydrocarbon degrading bacteria species were isolated from hydrocarbon contaminated soils, screened and used for the degradation of crude oil. 5% and 10% crude oil were used to spike the test microcosm. Physicochemical parameters such as, pH, turbidity, total petroleum hydrocarbon (TPH) and bacterial counts of the bioremediated crude oil contaminated water were monitored on Day 0, 7 and 14. The biodegradation of the crude oil was done with the various bacteria isolates singly and as a consortium. Standard methods of American Public Health Association (APHA) and American Society for Testing and Materials (ASTM) were used for the analysis. Results: The isolates identified and used for the biodegradation process were, Azomonas sp., Enterococcus sp., Klebsiella sp. and Rhizobactersp. On day 14, in the microcosms with 5% crude oil contamination, Azomonas sp. recorded the highest turbidity reading of 328 ± 2.0 NTU, while Rhizobacter sp. recorded the least with 57.67 ± 0.58 NTU. The bacterial countswere between 7.68 ± 0.002 CFU/ml and 8.05 ± 0.10x 107 CFU/ml for Rhizobacter sp. and Azomonas sp. respectively.The crude oil was also degraded most in the microcosm treated with Azomonas sp. with a residual TPH concentration of 0.0013± 0.005 mg/l.For the 10% crude oil contaminated microcosms, TPH was also biodegraded most by Azomonas sp. with a value of 0.0026 ± 0.002mg/l. Turbidity readings were between 82 ± 1.0 NTU and 375.33 ± 0.57 NTU for Rhizobacter sp. and Azomonas sp. respectively. Bacterial counts were between (7.71± 0.012)x 107CFU/ml – (8.13± 0.001) x 107CFU/ml for Rhizobacter sp. and Azomonassp. respectively. Conclusion:There wasincreased microbial countsand decrease of residual crude oil concentration, indicating degradation of the crude oil by all the isolates.However, Azomonas sp. recorded the highest TPH degradation for both the 5% and 10% crude oil contaminated microcosms.Thus, findings from the research indicate that hydrocarbon degrading bacteria exist in our environment and can be used in the remediation of aquatic polluted environment.

Isolation and Characterization of Hydrocarbon Degrading Bacteria from Petrol Contaminated Soil

2015 ◽  
Vol 11 ◽  
pp. 223-231 ◽  
Author(s):  
Abdul Wahab ◽  
◽  
Talat Mujahid ◽  
Safia Padhiar ◽  
Syed Subhan ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Isolation And Characterization ◽  
Degrading Bacteria

scholarly journals Isolation and characterization of diethyl phthalate degrading bacteria from crude oil contaminated soil

2019 ◽  
Vol 40 (3) ◽  
pp. 275-282
Author(s):  
P.K. Çevik ◽  
◽  
A.B. Eroğlu ◽  
G. Yildizli ◽  
D. Coşan ◽  
...  
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Diethyl Phthalate ◽  
Isolation And Characterization ◽  
Degrading Bacteria

scholarly journals Phenylobacterium Korensee Best Indigenous Petroleum Hydrocarbon Degrading Bacteria Isolated from Contaminated Soil of Bahror, Alwar Region, India

2019 ◽  
Vol 10 (08) ◽  
pp. 20203-20211 ◽  
Author(s):  
Mohan Lal Kuri ◽  
Vidhya Kumari ◽  
Shikha Roy
Keyword(s):  
Contaminated Soil ◽  
Engine Oil ◽  
Contaminated Site ◽  
Spectroscopy Analysis ◽  
Global Issue ◽  
Degrading Bacteria ◽  
Term Basis ◽  
Agar Media ◽  
Gas Chromatography Mass Spectroscopy

Contamination of soil, water and air due to hydrocarbons are a global issue and bioremediation provides probably the best way to remediate the contaminants. The current study shows the biodegradation of crude oil, diesel and used engine oil by a newly isolated Phenylobacterium korensee from contaminated soil of Bahror, Alwar, Rajasthan. Hydrocarbon degrading strain was screened on BHA (Bushnell Haas Agar) media supplemented with 2T engine oil as sole carbon source. The strain was found to be degrading at 1%, 4% and 10% of used 2T engine oil respectively after 14 days. Degradation was confirmed both gravimetrically and by Gas Chromatography Mass Spectroscopy analysis. The degradation was found very well at long term basis. The optimization of growth also studied at temperature and pH basis also. The significance of the study is that the percentage degradation of the complex petroleum supplements used in the study was found to be far higher than some of the previously reported values and this bacterial strain was firstly found from this contaminated site.

scholarly journals ISOLATION AND CHARACTERIZATION OF DIESEL DEGRADING BACTERIA FROM PETROLEUM OIL CONTAMINATED SOIL

2021 ◽  
pp. e313
Author(s):  
Tanvir Ahmed ◽  
Sababa Alam ◽  
Tasnia Ahmed
Keyword(s):  
Contaminated Soil ◽  
Energy Production ◽  
Petroleum Products ◽  
Low Ph ◽  
Isolation And Characterization ◽  
Degrading Bacteria ◽  
Bacillus Spp ◽  
Higher Temperature ◽  
Petroleum Oil

Petroleum products are used for energy production and an essential part of our day-to-day lives especially in vehicles, ships, and industries. Accidental leakages occur easily and wastage petroleum is also discarded in the environment without any further processing causing environmental pollution. Diesel contributea big part topetroleum pollution. The current study was aimed to identify diesel degrading bacteria and determine some conditions to evaluate their best degradation capability. We identified Aeromonas spp., Bacillus spp., and Enterobacter spp. from diesel contaminated soil and found that Aeromonas spp. and Bacillus spp. grow best with 10% to 15% diesel whereas Enterobacter spp. can grow quite well with 20% diesel concentration at a higher temperature (40oC) than the previous two bacteria. Aeromonas spp. worked well at low pH (pH 4 to pH 6) whereas Bacillus spp. and Enterobacter spp. worked best at higher pH (pH 10).

scholarly journals BIO STIMULATORY INFLUENCE OF COMPOST AND INORGANIC FERTILIZER ON BACTERIAL DEGRADATION OF SPENT ENGINE OIL CONTAMINATED SOIL

2020 ◽  
Vol 4 (3) ◽  
pp. 624-630
Author(s):  
A. Adeleye ◽  
Victor O. Onokebhagbe ◽  
A. Akindiya ◽  
M. E. Nkereuwem
Keyword(s):  
Contaminated Soil ◽  
Petroleum Hydrocarbon ◽  
Total Petroleum Hydrocarbon ◽  
Inorganic Fertilizer ◽  
Engine Oil ◽  
Bacterial Degradation ◽  
Incubation Study ◽  
Study Results ◽  
Spent Engine Oil ◽  
Hydrocarbon Utilizing Bacteria

The harmful effects of spent engine oil on aquatic and terrestrial ecosystems have been well established in literature. This study was conducted to assess the bio stimulatory influence of amendments; compost and inorganic fertilizer on bacterial degradation of spent engine oil contaminated soil.  500 g of unpolluted soil was collected and artificially contaminated with 5, 10 and 15% (v/w) spent engine oil. The experiment was laid out in a completely randomized design. Each amendment (50 g) was subsequently mixed thoroughly with the spent engine oil contaminated soil at varying levels except nine experimental bottles used as control. Incubation study was carried out and lasted for four weeks. Estimation of total petroleum hydrocarbon, pH, electrical conductivity, temperature and bacterial population density was done within two weeks interval during the incubation study. Results obtained indicate that compost significantly enhanced total petroleum hydrocarbon reduction by 87% while inorganic fertilizer facilitated 62% total petroleum hydrocarbon reduction on 5% spent engine oil contamination level respectively. Estimation of hydrocarbon utilizing bacteria on 5, 10 and 15% spent engine oil contaminated soil indicated that compost enhanced higher hydrocarbon utilizing bacteria thereby influencing bacterial degradation than those stimulated with inorganic fertilizer. pH remained in the range of alkalinity (7.8 and 8.06) for compost and 6.2 and 6.7 for inorganic fertilizer. The potential that compost recorded in influencing bacterial degradation of spent engine oil contaminated soil in this study has made it a good bio stimulant for the bioremediation of hydrocarbon polluted environments.

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