Spatial variations of hydrocarbon contamination and soil properties in oil exploring fields across China

Liang, Yuting; Zhang, Xu; Wang, Jian; Li, Guanghe

doi:10.1016/j.jhazmat.2012.09.055

Cited by 51 publications

(23 citation statements)

References 40 publications

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“…The Yellow River Delta in eastern China has undergone longterm disturbance due to intensive oil exploitation since 1964 (Bi et al, 2011;Liang et al, 2012), and provided a suitable site for the ecological risk assessment of oil pollution and consequent elevated soil Total Petroleum Hydrocarbon (TPH) levels. This region is a littoral wetland ecosystem that provides a habitat for a number of plant species and is highly valued for both agricultural and tourism development.…”

Section: Study Area and Sample Designmentioning

confidence: 99%

Effects of residual hydrocarbons on the reed community after 10 years of oil extraction and the effectiveness of different biological indicators for the long-term risk assessments

Zhu

Wang

Jiang

et al. 2015

Ecological Indicators

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Section: Study Area and Sample Designmentioning

confidence: 99%

Effects of residual hydrocarbons on the reed community after 10 years of oil extraction and the effectiveness of different biological indicators for the long-term risk assessments

Zhu

Wang

Jiang

et al. 2015

Ecological Indicators

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“…Microorganisms play key roles in bioremediation processes of complex compounds (Gomez et al, 2007). In crude oil contaminated environments, environmental factors and biological characteristics, e.g., salinity, oil density, and microbial species, can also affect the crude oil degradation rate (Elias et al, 2015;Liang et al, 2012;Tong et al, 2013). Most current studies focus on discovering highly efficient bacterial strains for bioremediation (Al-Awadhi et al, 2002;Kumar et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Industrial-scale culturing of the crude oil-degrading marine Acinetobacter sp. strain HC8-3S

Liu

Liu³

2016

International Biodeterioration & Biodegradation

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a b s t r a c tThe marine bacterium Acinetobacter sp. strain HC8-3S, capable of degrading petroleum hydrocarbons, was previously shown to be applicable for bioremediation. Here, we evaluated the performance of the strain during industrial-scale fermentation, long-term storage, and biodegradation processes. Fermentation parameters were optimized for industrial-scale culturing using lower salinity and fewer inorganic salts in the culture medium. The shelf-life of the fermentation broth was evaluated in different storage conditions. Biodegradation efficiency of the strain was evaluated using gas chromatography. Results indicated that the optimum conditions for one-ton scale fermentation were 30 C, pH 7.4e7.8, and rotation speed 90 rpm; the cell density reached 3.6 ± 1.9 Â 10 10 CFU ml À1 after 12 h. The low temperature can preserved fermentation broth for longer time. When the storage temperature was down to 4 C from room temperature, half-life of strain HC8-3S extended from 9 days to 34 days. The biodegradation rate of the saturated hydrocarbon fraction of crude oil was 94% after treatment with the strain for 5 days. The results indicate that Acinetobacter sp. strain HC8-3S can be enriched efficiently on a large scale, making it a potentially useful industrial strain. This crude oil degradative capability of the strain HC8-3S provides possible application for the clean-up of crude oil-contaminated environment.

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“…The leakage of crude oil in to soil damages the biological systems residing in the soil including microorganisms and plants. During the past decades, the use of petroleum products have increased and this has resulted in the contamination of the soil and water (Bauman 1991;Liang et al 2009;Riser-Roberts 2010;Cioni and Petarca 2011;Liang et al 2012). Some petroleum components are toxic for living organisms, however, some plants and microorganisms are able to biodegrade the crude oil hydrocarbons into products less toxic than the parent compounds (Eweis et al 1998;Al-Mailem et al 2010;Das and Chandran 2010;Thavasi et al 2010;Tyagi et al 2011;Thavasi et al 2011;Speight and Arjoon 2012;Gojgic-Cvijovic et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Reciprocal Effects of Oil-contaminated Soil and Festuca (Tall fescue)

Minai-Tehrani

Minoui

Shahriari

2014

Phytoremediation for Green Energy

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Contamination of soil by crude oil can damage ecosystem and environment. The oil can cause damage to the plants, the first element in food cycle. On the other hand, there are some plants that can be used to remediate crude oil-contaminated soil. Some plants such as grasses have been demonstrated to have better capacity in biodegradation of oil in the soil. In this study, the effect of different concentrations of light crude oil (1-10 %) on the growth and germination of Festuca arundinacea (Tall fescue) was studied for 120 days. The results showed that percent germination and dry biomass of the plants decreased by increasing light crude oil concentration in the soil. The total biomass (root + shoot) was higher (2.1 g) in 1 % crude oil sample while it was lower (0.06 g) in 10 % crude oil sample. The length of leaves decreased in higher crude oil concentration compared with that in control (27 cm). Total colony and oil-degrading colony count in soil showed that the microbial population in 7 and 10 % oil samples was higher than those in the control and low concentrations of crude oil. On the other hand, the effect of the plant on crude oil reduction was also studied and compared in vegetated and non-vegetated oilcontaminated soil. The crude oil reduction in the vegetated and the non-vegetated samples was higher in 1 % oil sample. All vegetated samples had higher crude oil reduction than the non-vegetated samples. The higher reduction (73 %) occurred at 1 % sample, while the lower reduction (24 %) was seen at 10 % oil sample. In conclusion, Festuca arundinacea as a grass could tolerate high concentration of light crude oil in soil and is a suitable plant for phytoremediation of oil-contaminated soil. However high concentration of oil could affect its growth and germination, reducing the root distribution in soil and causing untimely chlorosis.

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Spatial variations of hydrocarbon contamination and soil properties in oil exploring fields across China

Cited by 51 publications

References 40 publications

Effects of residual hydrocarbons on the reed community after 10 years of oil extraction and the effectiveness of different biological indicators for the long-term risk assessments

Effects of residual hydrocarbons on the reed community after 10 years of oil extraction and the effectiveness of different biological indicators for the long-term risk assessments

Industrial-scale culturing of the crude oil-degrading marine Acinetobacter sp. strain HC8-3S

Reciprocal Effects of Oil-contaminated Soil and Festuca (Tall fescue)

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