Biodegradation of low viscosity spindle oil causing environmental pollution
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ORIGINAL PAPER
Biodegradation of low viscosity spindle oil causing environmental pollution Sufyan Mohammed Shartooh1 · Mohammed Fadhil Abood2 · Haidar Kadum Yakob2 Received: 30 March 2020 / Revised: 28 May 2020 / Accepted: 4 June 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Three hydrocarbon degrading microorganisms were isolated from the soil samples collected from the storage sites of low viscosity spindle oil containers and identified on the basis of morphological and biochemical characteristics as Aeromonas hydrophila, Bacillus subtilis and Staphylococcus aureus. The study has revealed high ability of these microorganisms for oil biodegradation. The results have indicated that all isolates had the potential to breakdown the hydrocarbon. The most efficient bacteria among these examined was Aeromonas hydrophila which biodegraded almost all tested hydrocarbon giving a treatment percentage of 98% within 30 days which was considered as the perfect period for degradation. Also, a small scale was designed to treat the spindle oil with the using of oxidation process and all the tested organic materials were biodegraded in a treatment percentage of 100% within retention time of 20 days. Keywords Bioremediation · Oil spills · Aeromonas hydrophila
Introduction Hydrocarbons and oil products are regarded as one of the most crucial environmental pollutants being contained significant number of hydrocarbon structures associated with other compounds. However, its general structure is saturated with branched alkene chains and cyclo paraffin rings usually containing carbon, hydrogen and oxygen. Apparently, biodegradation of environmental pollutants, particularly those of raw oil, depends on the ability of microorganisms inhabited such ecosystems to digest most of the oil hydrocarbons via various metabolic routes and convert them into intermediate metabolic products and final products such as CO2 and H2O (Pérez Silva et al. 2006; Basuki 2017; Wua et al. 2018). This process of biodegrading oil natural spills and removing hydrocarbons from the environment is crucial but the measured biodegradation differs significantly (Prince et al. Communicated by Erko Stackebrandt. * Haidar Kadum Yakob [email protected] 1
Department of Biology, College of Science, University Of Anbar, Ramadi, Iraq
Department of Biology, College of Education for Pure Sciences, University of Anbar, Ramadi, Iraq
2
2016). It is worth mentioning that genetic engineering applications of microorganisms in biodegradation has given excellent and worthy findings to demonstrate the biodegradation of hazardous waste under laboratory conditions, where such results have shown that genetically biodegraded bacteria has higher ability in biodegradation. Currently, many ecosystems have been changed due to their impact on growing human activity and as a result, many people have become part of the environmental awareness of protecting these ecosystems and controlling any imposed risk. During the past years, incidents and frequen
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