An insight into the current oil spills and on-site bioremediation approaches to contaminated sites in Nigeria

Mafiana, Macdonald Ogorm; Bashiru, Mustapha Dimah; Erhunmwunsee, Famous; Dirisu, Chimezie Gabriel; Li, Shi-Weng

doi:10.1007/s11356-020-11533-1

Cited by 14 publications

(4 citation statements)

References 128 publications

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“…When it is applied in the microbial remediation of petroleum contaminated soil (also referred to as oily soil), the polluting petroleum hydrocarbons are used as the carbon source for microbial metabolism to degrade the pollutants into less toxic forms. Additionally, the use of pollutants as the carbon source provides a promising route to on-site, or in situ remediation of petroleum contaminated soil (Ma ana et al, 2021;Singh et al, 2022). As a result, the degradation or removal of the pollutants can improve the soil ecosystem by effectively reducing the toxicity, an important evaluation index of soil health status (Saterbak et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

Sun

Luo

et al. 2023

Preprint

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A simple and cost-effective microbial remediation process has been developed for the treatment of petroleum contaminated soil by adding microbial activators to active the native microorganisms for enhancing the degradation of petroleum hydrocarbon. The microbial activator is formulated to provide nitrogen sources, phosphorus sources, trace elements, growth factors, biosurfactants, and soil pH regulators. The field trials, involving two 500 m3 oily soil samples with initial oil content of 5.01% and 2.15%, respectively, show that the petroleum hydrocarbon content can be reduced to 0.41% and 0.02%, respectively, in 50 days, reaching the national standard of cultivated land category II. The treatment period is significantly shorter than the commonly used composting and bioaugmentation methods. The remediation effect of microbial activator on oily soil was investigated through the germination experiment of rye seeds. The results showed that the activator itself could not only activate the functional microorganisms in the soil, but also reduce the biological toxicity of oily soil. After 40 days of treatment, the germination rate of rye seeds increased from 20–90%, indicating that the microbial activator could be effectively used for rapid in-situ remediation of oil contaminated soil.

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Section: Introductionmentioning

confidence: 99%

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

Sun

Luo

et al. 2023

Preprint

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“…Negative impacts relating to environmental damage and health are well recognized. For example, an incomplete record of oil spills in the Niger Delta Region (NDR) of Nigeria over the past 30 years shows that four million barrels of oil spilled between 1991 and 2011 and a further 12,381 spilled between 2011 and 2019 ( 12 , 13 ). Alongside land clearing, gas flaring and infrastructure development, spills have left land and water ways inaccessible and unproductive ( 12 , 13 ), resulting in further deforestation and exploitation of marginal land as people are pushed to find alternative sources of income ( 10 , 14 ).…”

Section: Introductionmentioning

confidence: 99%

“…For example, an incomplete record of oil spills in the Niger Delta Region (NDR) of Nigeria over the past 30 years shows that four million barrels of oil spilled between 1991 and 2011 and a further 12,381 spilled between 2011 and 2019 ( 12 , 13 ). Alongside land clearing, gas flaring and infrastructure development, spills have left land and water ways inaccessible and unproductive ( 12 , 13 ), resulting in further deforestation and exploitation of marginal land as people are pushed to find alternative sources of income ( 10 , 14 ). Approximately 64% of the population of the oil-rich Niger Delta Region have neither a stable income nor access to basic amenities despite the oil resources deposited in the region ( 13 – 15 ) and in 2006, the United Nations Development Programme (UNDP) reported that the Niger Delta region's human development index was substantially below countries or regions with similar gas and oil reserves such as Venezuela and Indonesia ( 16 ).…”

Section: Introductionmentioning

confidence: 99%

The impact of oil industry-related social exclusion on community wellbeing and health in African countries

Nkem

Topp²,

Devine³

et al. 2022

Front. Public Health

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BackgroundOil is the mainstay revenue for a number of African countries. However, extraction can result in multiple impacts on the health and wellbeing of communities living in oil-rich areas. This review explored evidence of oil industry-related social exclusion on community health and wellbeing on the African continent.MethodsWe used a systematic approach guided by PRISMA to search six databases for empirical and descriptive sources focused on oil industry impacts, in any African country, between 1960 to 2021. Findings were grouped according to four dimensions of the Social Exclusion Knowledge Network (SEKN) framework: political, social, economic, and cultural.ResultsFifteen articles were identified, of which 13 articles focused on Nigeria; while one focused on Sudan, and one on Côte d'Ivoire and South Africa. Evidence relating to political aspects of social exclusion encompassed marginalization of indigenous communities through land grabs and unequal representation in political decision making. Limited compensation for environmental damage and livelihood displacement caused by oil-extraction, and high rates of unemployment and poverty were key themes of the economic dimension. Evidence of social impacts included lack of government, or oil-industry investment in social infrastructure; poor health and wellbeing linked to land, air, and water pollution; homelessness and lack of social cohesion. The cultural dimension of social exclusion was comparatively underexplored and only six sources included data collection with indigenous residents, and comparatively more sources were written by non-citizens or non-residents of oil-industry affected areas. Major themes included impacts on collective identity, ways of life and values, particularly where loss of ownership or access to land was experienced.ConclusionOil industry activities in African countries are clearly associated with multiple exclusionary impacts. However, the narrow body of empirical research limits understanding of the lived experiences and management of social exclusion by residents of oil-rich areas themselves and is an area deserving of further attention.

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“…This concept has been explored and exploited in the removal of oil contaminants including aliphatics, MAHs and PAHs. Indeed, bioremediation or real life removal of oil pollutants by biodegradation has been carried out in various contaminated environments, including seawater, soil, groundwater (Farhadian et al, 2008;Scoma et al, 2016;Koshlaf and Ball, 2017;Davoodi et al, 2020;Mafiana et al, 2021;Sayed et al, 2021;Yap et al, 2021). In addition the mechanisms of degradation of aliphatics, MAHs and PAHs have been extensively studies and readers are referred to the following reviews on this topic (Haritash and Rojo, 2009;Seo et al, 2009;Meckenstock and Mouttaki, 2011;Nzila, 2018aNzila, , 2018bDhar et al, 2020;Nzila and Musa, 2020).…”

Section: Introductionmentioning

confidence: 99%

Current Knowledge and Future Challenges on Bacterial Degradation of the Highly Complex Petroleum Products Asphaltenes and Resins

Nzila

Musa

2021

Front. Environ. Sci.

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Petroleum products consist mainly of aliphatics, aromatics, asphaltenes and resins. After oil exploitation, the concentrations of asphaltenes and resins are high in oil reservoirs; however, they are also the petroleum pollutants most recalcitrant to degradation, leading to high oil viscosity. A sizable amount of work has been dedicated to understand the degradation mechanisms of aliphatics and aromatics; however, in comparison, little work has been carried out on asphaltene and resin degradation. This review discusses our current knowledge on the understanding of asphaltene and resin degradation. More specifically, it sheds light on work carried out to date on the degradation of these pollutants, and highlights the major gaps that limit our understanding of their degradation pathways. It also presents new potential research areas that can be explored to fill in these gaps.

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An insight into the current oil spills and on-site bioremediation approaches to contaminated sites in Nigeria

Cited by 14 publications

References 128 publications

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

The impact of oil industry-related social exclusion on community wellbeing and health in African countries

Current Knowledge and Future Challenges on Bacterial Degradation of the Highly Complex Petroleum Products Asphaltenes and Resins

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