Biodegradation of total petroleum hydrocarbons (TPH) in highly contaminated soils by natural attenuation and bioaugmentation

Abena, Marie Thérèse Bidja; Li, Tongtong; Shah, Muhammad Naeem; Zhong, Weihong

doi:10.1016/j.chemosphere.2019.06.111

Cited by 97 publications

(35 citation statements)

References 30 publications

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“…Generally, Dietzia genus had been confirmed as alkane degraders, whereas some strains could also utilize polycyclic aromatic compounds, such as naphthalene, phenanthrene, pyrene, chrysene and fluoranthene (Wang et al, 2011Chen et al, 2017). Thanks to preeminent growth and degradation characteristics, Acinetobacter genus was always as active member in crude oil degradation and consortium construction (Lin et al, 2014;Bidja Abena et al, 2019a). In this study, one type of heavy crude oil was utilized by CN-3 and HC8-3S as the sole carbon and energy source.…”

Section: Discussionmentioning

confidence: 88%

“…The extracts were collected after centrifuging at 4000 rpm for 10 min and metered by 25 mL of volumetric flasks. The TPH concentration was estimated by an infrared spectrometric oil detector (OIL 460, China) (Chen et al, 2017;Bidja Abena et al, 2019a). Furthermore, the individual hydrocarbon components were analyzed by GC-MS and numbers of degraders were analyzed via plate counting method.…”

Section: Crude Oil-contaminated Soil Microcosmmentioning

confidence: 99%

“…Both laboratory and field studies had shown that bioaugmentation contributed to improving crude oil degradation. For instance, in a microcosm experiment, five bacterial strains were combined as a consortium to remediate different crude oil-contaminated soil samples, degrading 25.4%-48.1% of petroleum hydrocarbons after 40 d (Bidja Abena et al, 2019a). In a field study, the supplements of microbes enhanced the crude oil removal by 76% compared with 3.6% in control groups (Mukherjee and Bordoloi, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

Chen

Kong

et al. 2020

International Biodeterioration & Biodegradation

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Bioremediation is an attractive strategy of utilizing bacteria to remove crude oil contaminants. In this study, two salt-tolerant crude oil-degrading and biosurfactant-producing bacteria, Dietzia sp. CN-3 and Acinetobacter sp. HC8-3S, were functionally combined to construct a bacterial consortium. The consortium achieved 95.8% degradation efficiency of crude oil in 10 days and various n-alkanes, cycloalkanes, branched alkanes and aromatic hydrocarbons were all depleted more effectively than single strains. Functional optimization of the consortium degraded crude oil efficiently in a wide range of pH (4-10) and salinity (0-120 g L − 1). Furthermore, two alkane hydroxylase genes, alkB in CN-3 and alkM in HC8-3S, were cloned and their expression were examined by real-time quantitative polymerase chain reaction, indicating that alkB was more prominent in long-chain alkanes (C 20 , C 24 and C 26) utilization and alkM played crucial roles in medium-and long-chain alkanes (C 14 , C 16 , C 20 , C 24 and C 26) degradation. In soil microcosms artificially contaminated with crude oil and bioaugmented with the consortium, 58.3% of total petroleum hydrocarbons were depleted after 60 days and the degradation rate (485.8 mg kg − 1 d − 1) was higher than those reported in previous studies. Consequently, the consortium is a promising candidate in crude oil bioremediation.

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Section: Discussionmentioning

confidence: 88%

Section: Crude Oil-contaminated Soil Microcosmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

Chen

Kong

et al. 2020

International Biodeterioration & Biodegradation

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“…In the present study, more than 95% of the oil could be removed during a half period of the treatment time (in 6 days), under the rotational slurry conditions tested in this study, and regardless of the type and number of bacteria present in the samples. There are a large number of reports that have investigated removal of oil from soil samples by bioaugmentation [27][28][29][30][31][32]. In their reports, however, it usually took more than 40 days for degradation, although their experimental conditions, including concentrations of oil (2500-50,000 mg/kg soil), types of soils and scale of reactions (0.1-2.5 kg of soil), were different [27][28][29][30][31][32].…”

Section: Discussionmentioning

confidence: 99%

A Rotational Slurry Bioreactor Accelerates Biodegradation of A-Fuel in Oil-Contaminated Soil Even under Low Temperature Conditions

et al. 2020

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An effective bioaugmentation system for oil-contaminated soil under low-temperature conditions was developed with a rotational slurry bioreactor. Mixtures of two Rhodococcus oil-degraders, strain A and C, which are officially permitted to be used in bioaugmentation in Japan, were inoculated and A-fuel oil was added to a final concentration of 2500 and 5000 mg/kg-slurry. Decomposition tests were carried out for the inoculated samples and non-inoculated samples by rotating at 15 °C, the annual average temperature of Japan. The residue of A-fuel oil and the number of bacteria were measured every two days. After 6 days of treatment, more than 95% of the oil was removed in the inoculated samples, which was more than three times faster than a previous degradation experiment without rotation. A semi-continuous treatment was performed by removing 90% of the treated slurry, then adding the same amount of contaminated slurry into the system without additional degraders. Ninety-four percent of A-fuel oil was successfully degraded after 6 days by this repeated treatment. This could drastically reduce the cost of preparing the degraders. Strikingly, semi-continuous treatment showed oil removal in the non-inoculated samples, indicating that the rotational slurry conditions could efficiently promote biodegradation by indigenous degraders. Our rotational slurry bioreactor accelerated the removal of oil contamination without adding further degraders provides an efficient and cost-effective method of removal of A-fuel oil using a semi-continuous system, which can be used in practical applications in areas with a cooler climate.

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“…CHPZH25 isolated from petroleum oil-contaminated soils could degrade PAHs. Abena, Li, Shah, and Zhong (2019) reported that bioaugmentation with exogenous bacteria increased total petroleum hydrocarbon (TPH) degradation. The bioaugmented strains could withstand high-TPH concentration and thrive in five different types of soils.…”

Section: Soil Bioremediationmentioning

confidence: 99%

Hazardous wastes treatment technologies

Shih

et al. 2020

Water Environment Research

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Biodegradation of total petroleum hydrocarbons (TPH) in highly contaminated soils by natural attenuation and bioaugmentation

Cited by 97 publications

References 30 publications

Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

A Rotational Slurry Bioreactor Accelerates Biodegradation of A-Fuel in Oil-Contaminated Soil Even under Low Temperature Conditions

Hazardous wastes treatment technologies

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