Bioremediation of crude oil by Bacillus licheniformis in the presence of different concentration nanoparticles and produced biosurfactant

TitleBioremediation of crude oil by Bacillus licheniformis in the presence of different concentration nanoparticles and produced biosurfactant
Publication TypeJournal Article
Year of Publication2017
AuthorsEl-Sheshtawy H.S, Ahmed W.
JournalInternational Journal of Environmental Science and Technology
Volume14
Pagination1603-1614
Date PublishedAug
ISBN Number1735-1472
Accession NumberWOS:000405652100003
KeywordsOil and Gas Degradation
AbstractThis research work focuses on testing the bacterial strain Bacillus licheniformis for the bioremediation capacity of the crude oil. A biosurfactant and two different nanoparticles with different concentrations (0.05, 0.1, 0.2 g/100 ml) were applied separately to enhance the biodegradation process. The optimum biodegradation of crude oil was demonstrated at 60% of microcosms containing biosurfactant and nanoparticles after 7 days. The bacterial strain is highly potential to consume the total paraffins (iso- and n-paraffins) in crude oil samples. Accordingly, the best biodegradation of total paraffins was observed in microcosms containing (0.2 g) of Fe2O3, Zn-5(OH)(8)Cl-2 (nps) and biosurfactant separately. Additionally, the consumption of specific member rings of polyaromatics depends on the type and the concentration of nanoparticles. Thus, this bacterial strain was considered as a good candidate to be applied in the bioremediation process of petroleum-contaminated sites using biosurfactant and specific concentration of (Fe2O3 and Zn5OH8Cl2) nanoparticles.
DOI10.1007/s13762-016-1190-1