Coupling chemical oxidation and biostimulation: Effects on the natural attenuation capacity and resilience of the native microbial community in alkylbenzene-polluted soil

Martínez-Pascual, Eulàlia; Grotenhuis, J.T.C.; Solanas, Anna M.; Viñas, Marc

doi:10.1016/j.jhazmat.2015.06.061

Cited by 52 publications

(11 citation statements)

References 54 publications

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“…The predominance of Gram-negative bacteria, especially the betaproteobacteria phylotype after the remediation as observed in this study has also been reported (Bacosa et al 2010;Martínez-Pascual et al 2015). These observations were based on the fact that most of the functionally diverse bacterial group falls with the proteobacteria phylum (Gupta 2000).…”

Section: Discussionsupporting

confidence: 81%

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Shift in microbial group during remediation by enhanced natural attenuation (RENA) of a crude oil-impacted soil: a case study of Ikarama Community, Bayelsa, Nigeria

2017

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Acute and chronic pollution of environments with crude oil does not bode well for biota living within the vicinity of polluted environments. This is due to environmental and public health concerns on the negative impact of crude oil pollution on living organisms. Enhancing microbial activities by adding nutrients and other amendments had proved effective in pollutant removal during bioremediation. This study was carried out to determine how microbial group respond during remediation by enhanced natural attenuation (RENA) during a field-scale bioremediation. Crude oil-polluted soil samples were collected (before, during, and after remediation) from a site undergoing remediation by enhanced natural attenuation (RENA) at Ikarama Community, Bayelsa State, Nigeria, and were analyzed for total petroleum hydrocarbon (TPH), polyaromatic hydrocarbon (PAH), and a shift in microbial community. The gas chromatography-flame ionization detector (GC-FID) results showed that the pollutant concentrations (TPH and PAH) reduced by 98 and 85%, respectively, after the remediation. Culturable hydrocarbon utilizing bacteria (CHUB) was highest (8.3 9 10 4 cfu/g) for sample collected during the remediation studies, whilst sample collected after remediation had low CHUB (6

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Section: Discussionsupporting

confidence: 81%

“…isolated from sample after remediation contributed to their high optical densities during the degradation screening. Members of Alcaligenes have been reported as versatile hydrocarbon degraders, which posse alkB gene that code for enzyme involved in hydrocarbon degradation (Peressutti et al 2003;Martínez-Pascual et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Shift in microbial group during remediation by enhanced natural attenuation (RENA) of a crude oil-impacted soil: a case study of Ikarama Community, Bayelsa, Nigeria

2017

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“…Simultaneous application of multiple bioremediation techniques during remediation will help increase remediation efficacy (by reducing the weakness of individual technique), and at the same time reduce cost (Cassidy et al 2015 ; García-Delgado et al 2015 ; Martínez-Pascual et al 2015 ). Application of combined metrics of spatial configuration of bacterial dispersal networks will be a good indicator of biodegradation performance (Banitz et al 2016 ).…”

Section: Bioremediation Prospectsmentioning

confidence: 99%

Bioremediation techniques–classification based on site of application: principles, advantages, limitations and prospects

Azubuike

Chikere

Okpokwasili

2016

World J Microbiol Biotechnol

1,018

322

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Environmental pollution has been on the rise in the past few decades owing to increased human activities on energy reservoirs, unsafe agricultural practices and rapid industrialization. Amongst the pollutants that are of environmental and public health concerns due to their toxicities are: heavy metals, nuclear wastes, pesticides, green house gases, and hydrocarbons. Remediation of polluted sites using microbial process (bioremediation) has proven effective and reliable due to its eco-friendly features. Bioremediation can either be carried out ex situ or in situ, depending on several factors, which include but not limited to cost, site characteristics, type and concentration of pollutants. Generally, ex situ techniques apparently are more expensive compared to in situ techniques as a result of additional cost attributable to excavation. However, cost of on-site installation of equipment, and inability to effectively visualize and control the subsurface of polluted sites are of major concerns when carrying out in situ bioremediation. Therefore, choosing appropriate bioremediation technique, which will effectively reduce pollutant concentrations to an innocuous state, is crucial for a successful bioremediation project. Furthermore, the two major approaches to enhance bioremediation are biostimulation and bioaugmentation provided that environmental factors, which determine the success of bioremediation, are maintained at optimal range. This review provides more insight into the two major bioremediation techniques, their principles, advantages, limitations and prospects.

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“…Compared with these methods, biological treatment using microorganisms is costeffective, presents high efficiency and prevents secondary pollution (Khan et al 2004, Bao et al 2012. Bioremediation is an effective method for removal of contaminants, and the autochthonous microbial community can usually catabolize the contaminants (Martínez-Pascual et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Disruption and Recovery of Bacterial Community Structure of an Atlantic Forest Soil After Exposure to Gasohol

et al. 2019

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This article reports the effects of gasohol on the genetic of a bacterial community of a tropical Atlantic Forest soil. Hydrocarbon and ethanol biodegradation was accompanied by CO 2 emission. Gasohol had an immediate impact on genetic structure of bacteria and on respiratory metabolism of soil microbial community. Cluster analysis of DGGE band pattern indicated a shift in the community structure between the fifth and fortieth days after contamination. At 60 days after contamination, the DGGE profile of the bacterial community in the contaminated soil was similar to that found in the non-contaminated control. Gasohol addition increased the respiratory rate of the soil, peaking at 3 days and returning to basal level at 15 days after contamination. We concluded that gasohol contamination causes a strong transient impact on soil microbial community structure that is completely reversed after a few days following contaminant removal. Secondary succession after contamination resulted in a bacterial community of identical genetic structure to that found before contamination. Our results point out to a high resilience of microbial community established in Atlantic Forest soil.

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Coupling chemical oxidation and biostimulation: Effects on the natural attenuation capacity and resilience of the native microbial community in alkylbenzene-polluted soil

Cited by 52 publications

References 54 publications

Shift in microbial group during remediation by enhanced natural attenuation (RENA) of a crude oil-impacted soil: a case study of Ikarama Community, Bayelsa, Nigeria

Shift in microbial group during remediation by enhanced natural attenuation (RENA) of a crude oil-impacted soil: a case study of Ikarama Community, Bayelsa, Nigeria

Bioremediation techniques–classification based on site of application: principles, advantages, limitations and prospects

Disruption and Recovery of Bacterial Community Structure of an Atlantic Forest Soil After Exposure to Gasohol

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