Selection of functional consortium for crude oil-contaminated soil remediation

Zhao, Dixian; Liu, Chunshuang; Liu, Lihong; Zhang, Yunbo; Liu, Qiyou; Wu, Wei‐Min

doi:10.1016/j.ibiod.2011.07.008

Cited by 80 publications

(29 citation statements)

References 23 publications

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“…The overall degradability of oil contaminated soils strongly depends on the types and composition of crude oils. The aliphatic and aromatic hydrocarbons could be partially removed by enhanced bioremediation [9,[26][27][28] or chemical/physical treatment [20,[29][30][31], while those NSO fraction and asphaltenes with high molecular weight and complex structures could be hardly removed and remained in soils for long term [16]. Aliphatic and aromatic hydrocarbons from DQ, SL and BS were further quantitatively analyzed by internal calibration method with GC/MS and the average concentrations were shown in Fig.…”

Section: Spatial Variations Of Oil Contaminationmentioning

confidence: 99%

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

Liang

Zhang

Wang

et al. 2012

Journal of Hazardous Materials

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Section: Spatial Variations Of Oil Contaminationmentioning

confidence: 99%

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

Liang

Zhang

Wang

et al. 2012

Journal of Hazardous Materials

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“…The approach used was that previously reported by Zhao et al (2011). Long-term storage of pure cultures master stocks were kept in deep freeze Microbank™ vials and stored at −70°C.…”

Section: Isolation and Consortia Developmentmentioning

confidence: 99%

Bioremediation of Phenol-Contaminated Industrial Wastewater Using a Bacterial Consortium—from Laboratory to Field

Poi

Aburto‐Medina

Mok³

et al. 2017

Water Air Soil Pollut

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Singapore is an island city state with an economy dependent on petrochemicals and shipping, but with severely limited water resources. This study aimed to establish a suitable methodology specifically for the translation of a laboratory-scale system to an industrial scale for the treatment of phenol-contaminated wastewater. A habitat-specific microbial consortium was developed and reconstituted from 22 pure cultures dominated by Acinetobacter sp., Bacillus sp. and Pseudomonas sp. to form a synthetic biofilm-forming community with the capacity to degrade phenol-contaminated wastewater. The laboratory experiment was scaled-up to 400 m 3 by using biotrickling reactors to reduce the phenol level from 407 mg L −1 to below detection limit over 104 days incubation. The results showed that the microbial consortia could also reduce the toxicity of the wastewater while degrading the phenol and lowering the wastewater COD. Further, this approach could be translated into the field without the need for a purposebuilt primary treatment facility preventing the generation of excessive biomass and eliminating the need for sludge disposal.

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“…27 Compared with the other three fractions, aliphatic compounds require the least energy for biodegradation and are usually the easiest hydrocarbons to biodegrade. 28,29 Nevertheless, Reddy et al 27 noticed higher biodegradation of aromatics over aliphatics, which was attributed to the breakdown of aromatic rings to straight chain compounds (aliphatics).…”

Section: Oily Sludge Biodegradation In Biometer Flasksmentioning

confidence: 99%

Enhanced bioremediation of oily sludge using co‐culture of specific bacterial and yeast strains

Xin-guo

Liu

2014

J of Chemical Tech & Biotech

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BACKGROUND Considerable volumes of petrochemical oily sludge can be generated from oil production and processing activities. Total petroleum hydrocarbons (TPH) contained in oily sludge are detrimental to human health and the environment. Thus, oily sludge is classified as a priority environmental pollutant by the US Environmental Protection Agency and it must be treated properly before discharge into the environment. RESULTS In this study, a functional microbial consortium consisting of Bacillus subtilis, Bacillus megaterium, Achromobacter xylosoxidans, Pseudomonas fluorescens, Candida tropicalis and Rhodotorula dairenensis, isolated from petroleum‐contaminated soil, was applied for bioremediation of petrochemical oily sludge in a shake flask and oily sludge microcosm study. These strains utilized the oily sludge as sole source of carbon and energy. The oily sludge contained 21.5% (w/w, dry weight basis) of total petrol hydrocarbons (TPH). Results showed that the microbial consortium exhibited an excellent oily sludge degradation capacity, reducing 92.5% of aliphatics, 79.3% of aromatics, 48.6% of NSO‐containing compounds, 31.8% of asphaltenes and 80.6% of TPH, by the end of the 1‐year microcosm experiment. In contrast, biodegradation rates of these fractions were 83.3%, 17.5%, 8.4%, 4.7% and 56.1%, respectively, in the non‐inoculated treatment. These strains survived well and adapted to the oil sludge environment throughout the incubation period. Dehydrogenase and polyphenoloxidase activity of the oily sludge was remarkably promoted by inoculation of the microbial consortium. CONCLUSION The results indicated that the microbial consortium has the potential to be used in bioremediation of petrochemical oily sludge polluted environments. © 2014 Society of Chemical Industry

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Selection of functional consortium for crude oil-contaminated soil remediation

Cited by 80 publications

References 23 publications

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

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

Bioremediation of Phenol-Contaminated Industrial Wastewater Using a Bacterial Consortium—from Laboratory to Field

Enhanced bioremediation of oily sludge using co‐culture of specific bacterial and yeast strains

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