Bioremediation strategies of hydrocarbons and microbial diversity in the Trindade Island shoreline — Brazil

Rodrigues, Edmo Montes; Kalks, Karlos Henrique Martins; Fernandes, Péricles Leonardo; Tótola, Marcos Rogério

doi:10.1016/j.marpolbul.2015.10.063

Cited by 11 publications

(10 citation statements)

References 65 publications

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“…Their number and activity increase and can represent 100% of the total microbial community. However, they can be found in non-contaminated environment but in very small proportion which can represent 0.1% of the total microbial community [53,60,61].…”

Section: Distribution Of Hydrocarbon-degrading Microorganismsmentioning

confidence: 99%

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Microbial Bioremediation of Petroleum Hydrocarbon– Contaminated Marine Environments

Mahjoubi¹,

Cappello²,

Souissi³

et al. 2018

Recent Insights in Petroleum Science and Engineering

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Petroleum pollution has become a serious environmental problem, which can cause harmful damage to the environment and human health. This pollutant is introduced into the environment from both natural and anthropogenic sources. Various physicochemical and biological treatments were developed for the cleanup of contaminated environments. However, bioremediation is based on the metabolic capabilities of microorganisms, and it is considered as the most basic and reliable way to eliminate contaminants, particularly petroleum and its recalcitrant compounds. It is more effective alternative comparing to classical remediation techniques. A high diversity of potential hydrocarbon degrader's microorganisms was reported, and bacteria constitute the most abundant group, which has been well studied for hydrocarbon degradation. Several bioremediation approaches through bioaugmentation or/and biostimulation have been successfully applied. The interest on the optimizing of different parameters to achieve successful bioremediation technologies has been increased. In this chapter, we summarize the diversity and the hydrocarbon degradation potential of microorganism involved in the remediation of contaminated environments. We also present an overview of the efficient bioremediation strategies used for the decontamination of polluted marine environments.

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Section: Distribution Of Hydrocarbon-degrading Microorganismsmentioning

confidence: 99%

“…PAHs are present in crude oil but in low concentrations. They are highly toxic and recalcitrant [60,61].…”

Section: Polycyclic Aromatic Hydrocarbons (Pahs)mentioning

confidence: 99%

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Microbial Bioremediation of Petroleum Hydrocarbon– Contaminated Marine Environments

Mahjoubi¹,

Cappello²,

Souissi³

et al. 2018

Recent Insights in Petroleum Science and Engineering

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“…These treatments have low cost, high efficiency, and avoid secondary pollution [7,8]. When used in combination with other remediation technologies, bioremediation can lead to a successful cleanup due to complementary effects [9][10][11]. In situ bioremediation can rely on different strategies, including natural attenuation, biostimulation, and bioaugmentation [12].…”

Section: Introductionmentioning

confidence: 99%

Strategy to improve crude oil biodegradation in oligotrophic aquatic environments: W/O/W fertilized emulsions and hydrocarbonoclastic bacteria

et al. 2020

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We studied petroleum biodegradation by biostimulation by using water in oil in water (W/O/W) double emulsions. These emulsions were developed using seawater, canola oil, surfactants, and mineral salts as sources of NPK. The emulsions were used in the simulation of hydrocarbon bioremediation in oligotrophic sea water. Hydrocarbon biodegradation was evaluated by CO 2 emissions from microcosms. We also evaluated the release of inorganic nutrients and the stability of the emulsion's droplets. The double emulsions improved CO 2 emission from the microcosms, suggesting the increase in the hydrocarbon biodegradation. Mineral nutrients were gradually released from the emulsions supporting the hydrocarbon biodegradation. This was attributed to the formation of different diameters of droplets and therefore, varying stabilities of the droplets. Addition of the selected hydrocarbonoclastic isolates simulating bioaugmentation improved the hydrocarbon biodegradation. We conclude that the nutrient-rich W/O/W emulsion developed in this study is an effective biostimulation agent for bioremediation in oligotrophic aquatic environments.

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“…A contaminação do ambiente por hidrocarbonetos de petróleo consiste em uma grande preocupação para a saúde humana e para a qualidade ambiental em todo o mundo, tendo em vista os efeitos carcinogênicos, mutagênicos, neurotóxicos e imunotóxicos dos produtos de petróleo compostos por uma mistura complexa de milhares de substâncias químicas (VARJANI & UPASANI, 2016;MARCHAND et al, 2017). Para atenuar essa problemática, causada principalmente por vazamentos de combustíveis, têm sido realizadas inúmeras pesquisas de remediação de sítios contaminados por hidrocarbonetos, com destaque para as técnicas de biorremediação, por serem consideradas mais seguras, menos onerosas e menos agressivas ao meio ambiente (MARCHAL et al, 2003;MARIANO et al, 2008;BESKOSKI et al, 2011;RODRIGUES et al, 2015;BALDAN et al, 2015;PACWA-PLOCINICZAK; PLAZA; PIOTROWSKA-SEGET, 2016).…”

Section: Introductionunclassified

Análise do potencial microbiano de uma biopilha na biorremediação de solos contaminados por hidrocarbonetos de petróleo

Bisognin

López

Müller

et al. 2018

Eng. Sanit. Ambient.

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RESUMO A presente pesquisa avaliou o potencial microbiano de uma biopilha na biorremediação de solos contaminados por hidrocarbonetos, montada em uma base de distribuição de combustíveis na região metropolitana de Porto Alegre, Rio Grande do Sul. Desta biopilha, foram avaliadas as concentrações dos hidrocarbonetos totais de petróleo (HTP) e de compostos benzeno, tolueno, etilbenzeno e xilenos (BTEX), em nove pontos, durante quatro etapas de operação e em três profundidades por ponto. De cada coleta, também foram reservadas amostras de solo para realização das análises microbiológicas. A partir dessas amostras, buscou-se identificar fungos e leveduras pela análise de suas estruturas reprodutivas em lâminas de microcultivo, e bactérias pela técnica da Reação em Cadeira da Polimerase (PCR) e sequenciamento do gene que codifica o RNAr 16S. Ainda, avaliou-se a capacidade dos microrganismos isolados em degradar óleo diesel comercial, utilizando o indicador redox 2,6-diclorofenol indofenol (DCPIP). Como resultado deste estudo, observaram-se elevados percentuais de redução nas concentrações de HTP e BTEX na biopilha, como 92 e 100%, respectivamente. Das amostras de solo da biopilha, foram isoladas 101 cepas de microrganismos, das quais foram identificadas 19 cepas de fungos filamentosos, 34 de bactérias e 1 de levedura. Os resultados evidenciaram a capacidade de alguns gêneros de fungos, como Aspergillus, Trichoderma, Penicillium, Cladosporium e Verticillium, e bactérias, como Bacillus spp. e Streptomyces sp., em degradar hidrocarbonetos constituintes do óleo diesel comercial.

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Bioremediation strategies of hydrocarbons and microbial diversity in the Trindade Island shoreline — Brazil

Cited by 11 publications

References 65 publications

Microbial Bioremediation of Petroleum Hydrocarbon– Contaminated Marine Environments

Microbial Bioremediation of Petroleum Hydrocarbon– Contaminated Marine Environments

Strategy to improve crude oil biodegradation in oligotrophic aquatic environments: W/O/W fertilized emulsions and hydrocarbonoclastic bacteria

Análise do potencial microbiano de uma biopilha na biorremediação de solos contaminados por hidrocarbonetos de petróleo

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