Trace Heavy Metals Associated with Crude Oil: A Case Study of Ebocha-8 Oil-Spill-Polluted Site in Niger Delta, Nigeria

2004 ◽  
Vol 1 (11) ◽  
pp. 1708-1715 ◽  
Author(s):  
Leo?C. Osuji ◽  
Chukwunedum?M. Onojake
Keyword(s):  
Heavy Metals ◽  
Crude Oil ◽  
Oil Spill ◽  
Niger Delta ◽  
Polluted Site ◽  
Trace Heavy Metals

STRATEGIES FOR MANAGING OIL SPILL RELATED CONFLICTS IN THE NIGER DELTA: A CASE STUDY OF BAYELSA STATE

2021 ◽  
Vol 8 (4) ◽  
pp. 465-483
Author(s):  
Ndidiamaka Chijioke ◽  
Susan Audu-Bako ◽  
Ikechukwu Uwakwe
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Niger Delta ◽  
Local Governments ◽  
Oil Exploration ◽  
Delta Region ◽  
Oil Companies ◽  
Niger Delta Region ◽  
Exploration Activity

The discovery of crude oil in Oloibiri-a town in the present Bayelsa state, Niger-Delta region of Nigeria) in 1956 and the subsequent exploration activities have over the years impacted tremendously not only on the ecosystem and livelihood pattern of the Niger Delta but on the pattern of conflicts that has trended.. While resources accruable to Nigeria from sale of crude oil are shared by all, the impacts of oil spill an offshoot of crude oil exploration activities are borne solely by the Niger Delta region. Oil spill appears to have found a permanent abode in Bayelsa state; from Southern Ijaw to Sagbama local governments, Olodiama to Azuzuama communities. Local communities are faced with the problem of continuous oil spill. This in turn has brought about conflicts between oil bearing communities and oil companies. These conflicts in some instances led to shut down of operations of oil companies, vandalism, and reduction of Nigeria’s crude export. In view of the illustrated background, this study examined the strategies for management of oil spill related conflicts in Bayelsa state regarding that oil spill is a key impact of crude oil exploration activity. Findings revealed that the strategies deployed in the management of oil spill in the state can be categorised into three: community strategies, regulators and non-governmental organisations strategies.

scholarly journals Metagenomics insight into microbial dynamics in field-scale remediation of crude oil-polluted soil

2020 ◽  
Author(s):  
Chioma Blaise Chikere ◽  
Memory Tekere ◽  
Rasheed Adeleke
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Niger Delta ◽  
Oil Pollution ◽  
Alpha Diversity ◽  
Cost Effective ◽  
Polluted Soil ◽  
Field Scale ◽  
Microbial Dynamics ◽  
Naphthalene Degradation

Abstract Background: The frequency of crude oil pollution has been on the increase following increased exploration, exploitation and production of energy from fossil fuel. Bioremediation has been shown to be eco-friendly and cost-effective method of oil spill remediation. In the Niger Delta, Landfarming has been the most used technique. The aim of this research was to employ metagenomic techniques to understand microbial dynamics during field-scale remediation in the Niger Delta in order to improve and reduce the time of remediation. Results: The surface (0.0 – 0.5m) sample had an extractable TPH value of 6231 mg/kg. The subsurface samples from 1m, 1.5m and 2.0m depths had extractable TPH concentration of 4836 mg/kg, 9112 mg/kg and 7273 mk/kg respectively. Proteobacteria dominated the bacterial community of the oil-polluted soil and comprised mainly of the classes Alphaproteobacteria, Betaproteobacteria and Gammaproteobacteria. Alpha diversity analysis revealed the presence of crude oil in the soil reduced microbial diversity. Principal coordinate analysis showed the microbial structure continually changed following changes in the chemical composition of the soil. Mycobacterium, Burkholderia, Methylobacterium and Bacillus were among the core OTUs detected during the period of remediation. Significant variation in pathway abundance particularly pathways for propanoate degradation, benzoate degradation, naphthalene degradation, fatty acid metabolism, polycyclic aromatic hydrocarbon degradation and degradation of xenobiotics were observed when the unpolluted soil was compared to the samples obtained during remediation. Conclusions: The findings from this study will greatly advance an already preferred landfarming oil spill recovery technique in the Niger Delta.

Optimisation of magnetic separation: A case study for soil washing at a heavy metals polluted site

Chemosphere ◽  
2014 ◽  
Vol 107 ◽  
pp. 290-296 ◽  
Author(s):  
C. Sierra ◽  
D. Martínez-Blanco ◽  
Jesús A. Blanco ◽  
J.R. Gallego
Keyword(s):  
Heavy Metals ◽  
Magnetic Separation ◽  
Soil Washing ◽  
Polluted Site

Geoinformation for Oil Spill Disaster Management in the Niger Delta Region of Nigeria

2009 ◽  
Vol 62-64 ◽  
pp. 432-438
Author(s):  
Henry A.P. Audu ◽  
J.O. Ehiorobo
Keyword(s):  
Oil Spill ◽  
Niger Delta ◽  
Delta Region ◽  
Oil Transport ◽  
Niger Delta Region ◽  
Oil Spill Response ◽  
Response Modelling ◽  
Derived Data ◽  
Management Operation

One of the major ecological and environmental problems confronting the Niger Delta region of Nigeria today is degradation and hazard arising from oil spill. Spillage occurs in this region either from vandalisation or sabotage by ethnic militants, youths who are jobless and therefore deliberately break open crude oil transport pipelines to scoop fuel for sale in the black market to earn a living or rupture of pipes due to ageing and mechanical malfunction. In most spillages, farmlands are lost, aquatic and wildlife is affected, and people are in many cases displaced from their homes. In extreme cases as occurred in Jesse, lives were lost. This paper examines the use of Geoinformation technology in oil spill response modelling and management. The use Global Positioning System (GPS) derived data for the creation of a management database is discussed. Data generated from the Jesse spill and fire site covering these areas were used to generate case study scenario for oil spill response modelling and clean up management operation.

Toxicity Assessment of some Crude Oil Contaminated Soils in the Niger Delta

2009 ◽  
Vol 62-64 ◽  
pp. 451-455 ◽  
Author(s):  
F.A. Aisien ◽  
J.C. Chiadikobi ◽  
E.T. Aisien
Keyword(s):  
Heavy Metals ◽  
Moisture Content ◽  
Crude Oil ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Niger Delta ◽  
Extraction Methods ◽  
Toxicity Assessment ◽  
Soil Samples ◽  
Physiochemical Parameters

This paper considered the toxicity assessment of some crude oil contaminated soils in Niger Delta areas. The soil samples were collected from different horizontal distances, vertical depths and contaminated soil of different ages. The heavy metals in the contaminated soils were digested and extracted using di-acid digested and DTPA extraction methods respectively. The physiochemical parameters (moisture content, pH, N, P and heavy metals (Ni, Pb and Cd) were analysed with APHA method. The heavy metals concentration was determined using atomic absorption spectrophotometer (AAS). The results show that the metals concentration decreased with the age of the contaminated soil and with increased vertical depths. However, the metals concentrations were almost constant at different horizontal distances. Similar trend was observed for the moisture content, pH, N, P and K.

scholarly journals Metagenomics insight into microbial dynamics in field-scale remediation of crude oil-polluted soil

2020 ◽  
Author(s):  
Chioma Blaise Chikere ◽  
Memory Tekere ◽  
Rasheed Adeleke
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Niger Delta ◽  
Oil Pollution ◽  
Alpha Diversity ◽  
Cost Effective ◽  
Field Scale ◽  
Microbial Dynamics ◽  
Microbial Profile ◽  
Naphthalene Degradation

Abstract Background: The frequency of crude oil pollution has been on the increase following increased exploration, exploitation and production of energy from fossil fuel. Bioremediation has been shown to be eco-friendly and cost-effective method of oil spill remediation. In the Niger Delta, Landfarming has been the most used technique. The aim of this research was to employ metagenomic techniques to understand microbial dynamics during field-scale remediation in the Niger Delta in order to improve and reduce the time of remediation. Results: The surface (0.0 – 0.5m) sample had an extractable TPH value of 6231 mg/kg. The subsurface samples from 1m, 1.5m and 2.0m depths had extractable TPH concentration of 4836 mg/kg, 9112 mg/kg and 7273 mk/kg respectively. Proteobacteria dominated the soil microbial profile in all the samples studied as it made up at least 50% of each sample and mostly comprised of the class Alphaproteobacteria with variation only on day 18 and 36 which was mostly dominated by the class Gammaproteobacteria and Betaproteobacteria. Alpha diversity analysis revealed the presence of crude oil in the soil reduced microbial diversity. Principal coordinate analysis showed the microbial structure continually changed following changes in the chemical composition of the soil. Mycobacterium, Burkholderia, Rhodoplanes, Methylobacterium and Bacillus were the core OTUs detected during the period of remediation. Significant variation in pathway abundance particularly pathways for propanoate degradation, benzoate degradation, naphthalene degradation, fatty acid metabolism, polycyclic aromatic hydrocarbon degradation and degradation of xenobiotics were observed when the unpolluted soil was compared to the samples obtained during remediation. Conclusions: The findings from this study will greatly advance an already preferred landfarming oil spill recovery technique in the Niger Delta.

scholarly journals Oil Spillage and Heavy Metals Toxicity Risk in the Niger Delta, Nigeria

2018 ◽  
Vol 8 (19) ◽  
Author(s):  
Enegide Chinedu ◽  
Chukwuma Kelechukwu Chukwuemeka
Keyword(s):  
Heavy Metals ◽  
Crude Oil ◽  
Niger Delta ◽  
Oil Spills ◽  
Local Population ◽  
Secondary Data ◽  
Delta Region ◽  
Niger Delta Region ◽  
Heavy Metals Toxicity ◽  
Financial Interests

Background. Heavy metals are known to elicit toxic effects which negatively affect human health. Crude oil is known to contain heavy metals and oil spills contaminate the environment and can result in human exposures to heavy metals. As the seat of crude oil activities, the Niger Delta region experiences the highest rate of oil spills in Nigeria. Objective. The purpose of this study was to estimate the quantity of oil spilled into the Niger Delta region from 1976 through 2014 and to assess the resulting heavy metals exposures of the local population. Methods. Secondary data from governmental and non-governmental bodies were analyzed and the amount of oil spilled in the Niger Delta region from 1976 through 2014 was determined. The heavy metals present in crude oil from this region and the quantities released into the environment within the study period due to spillage were then extrapolated. Results. The Niger Delta region is continuously exposed to a higher rate of oil spills, and about 3.1 million barrels of crude oil enriched in manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), lead (Pb), nickel (Ni), cobalt (Co), cadmium (Cd) and chromium (Cr) were spilled from 1976 to 2014 in this region. Therefore, the occupants of this region may be at risk of heavy metals toxicity. Conclusion. To minimize heavy metals exposure and toxicity in the Niger Delta region, effective strategies must be adopted to reduce oil spills. In addition, curtailment and remediation of oil spills should be more rapid. Competing Interests. The authors declare no competing financial interests

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