نتایج جستجو برای: crude oil hydrocarbon

تعداد نتایج: 186315  

2016
Kaustuvmani Patowary Rupshikha Patowary Mohan C. Kalita Suresh Deka

The intrinsic biodegradability of hydrocarbons and the distribution of proficient degrading microorganisms in the environment are very crucial for the implementation of bioremediation practices. Among others, one of the most favorable methods that can enhance the effectiveness of bioremediation of hydrocarbon-contaminated environment is the application of biosurfactant producing microbes. In th...

Journal: :international journal of marine science and engineering 2013
l. mohajeri h. a. aziz m. h. isa m. a. zahed s. mohajeri

bioremediation, the process by which microorganisms degrade organic compounds to non-toxic or less toxic substances, has been widely used for cleanup of coastal ecosystems after oil spills. in this study, the hydrocarbon degradation rate and half lives in three bioremediation strategies (natural attenuation, biostimulation, and bioaugmentation) were compared in weathered crude oil (wco) contami...

2014
Jesse C. Thomas Denis Wafula Ashvini Chauhan Stefan J. Green Richard Gragg Charles Jagoe

The deepwater horizon (DWH) accident led to the release of an estimated 794,936,474 L of crude oil into the northern Gulf of Mexico over an 85 day period in 2010, resulting in the contamination of the Gulf of Mexico waters, sediments, permeable beach sands, coastal wetlands, and marine life. This study examines the potential response of the Eastern oyster's microbiome to hydrocarbon contaminati...

2017
Sebastian Petrick Kathrin Riemann-Campe Sven Hoog Christian Growitsch Hannah Schwind Rüdiger Gerdes Katrin Rehdanz

A significant share of the world's undiscovered oil and natural gas resources are assumed to lie under the seabed of the Arctic Ocean. Up until now, the exploitation of the resources especially under the European Arctic has largely been prevented by the challenges posed by sea ice coverage, harsh weather conditions, darkness, remoteness of the fields, and lack of infrastructure. Gradual warming...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Beizhan Yan Uta Passow Jeffrey P Chanton Eva-Maria Nöthig Vernon Asper Julia Sweet Masha Pitiranggon Arne Diercks Dorothy Pak

The 2010 Deepwater Horizon oil spill resulted in 1.6-2.6 × 10(10) grams of petrocarbon accumulation on the seafloor. Data from a deep sediment trap, deployed 7.4 km SW of the well between August 2010 and October 2011, disclose that the sinking of spill-associated substances, mediated by marine particles, especially phytoplankton, continued at least 5 mo following the capping of the well. In Aug...

Journal: :international journal of environmental research 2014
r. trejo-castillo m.a. martínez-trujillo m. garcía-rivero

a crude biosurfactant mixture was produced in a 1.4 l tubular reactor by a mixed culture; afterthe thermal treatment of the whole culture an increase in emulsification activity and surface tension wasobserved, with a main effect on the first one. the emulsification index of the mixture obtained was of 60.4 %. the crude mixed biosurfactant was used to enhance hydrocarbon biodegradation of intemp...

E. Keshmirizadeh M. Memariani S. Shobeirian

Lighthydrocarbons are commonly used to evaluatecrude oils to determine oil families in reservoirs undergone some kind of alteration process. In this study crude oil contentsfromNorthwestern IranDelta (samples A, B and C)were analyzed in order to evaluate the IranDelta petroleum system independent of higher molecular weight markers. Ultra high resolution gas chromatography was used in separation...

2015
Narjes Dashti Nedaa Ali Mohamed Eliyas Majida Khanafer Naser A. Sorkhoh Samir S. Radwan

Eighty-two out of the 100 hydrocarbonoclastic bacterial species that have been already isolated from oil-contaminated Kuwaiti sites, characterized by 16S rRNA nucleotide sequencing, and preserved in our private culture collection, grew successfully in a mineral medium free of any nitrogenous compounds with oil vapor as the sole carbon source. Fifteen out of these 82 species were selected for fu...

2016
P. O. Okerentugba

Several studies have reported on the capabilities of different yeasts to utilize hydrocarbons hence the need to ascertain the petroleum hydrocarbon biodegradation potential of yeast isolated from palm wine. The study aimed at isolation, characterization and testing of yeasts from palm wine for biodegradation of petroleum hydrocarbons. Hydrocarbon utilizing yeasts (HUY) were isolated from palm w...

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