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Castro-Gutiérrez, V.M., Rodríguez-Rodríguez, C.E., Vargas-Azofeifa, I.. (1390). Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation. , 6(1), 345-352. doi: 10.22059/ijer.2011.500
V.M. Castro-Gutiérrez; C.E. Rodríguez-Rodríguez; I. Vargas-Azofeifa. "Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation". , 6, 1, 1390, 345-352. doi: 10.22059/ijer.2011.500
Castro-Gutiérrez, V.M., Rodríguez-Rodríguez, C.E., Vargas-Azofeifa, I.. (1390). 'Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation', , 6(1), pp. 345-352. doi: 10.22059/ijer.2011.500
Castro-Gutiérrez, V.M., Rodríguez-Rodríguez, C.E., Vargas-Azofeifa, I.. Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation. , 1390; 6(1): 345-352. doi: 10.22059/ijer.2011.500

Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation

International Journal of Environmental Research
مقاله 34، دوره 6، شماره 1، فروردین 2012، صفحه 345-352    اصل مقاله (222.52 K)
شناسه دیجیتال (DOI): 10.22059/ijer.2011.500
نویسندگان
V.M. Castro-Gutiérrez1؛ C.E. Rodríguez-Rodríguez* 1؛ I. Vargas-Azofeifa2
1Laboratory of Food and Water Microbiology, Faculty of Microbiology and Research Center of Environmental Pollution (CICA), University of Costa Rica (UCR), 2060 San José, Costa Rica
2Centroamerican School of Geology, UCR, 2060 San José, Costa Rica
چکیده
An aquifer located within a petroleum processing plant in Moín, Costa Rica, suffers hydrocarbon
pollution. This study aimed to determine the ability of indigenous microorganisms from this site to degrade polycyclic aromatic hydrocarbons (PAHs) to evaluate the feasibility of an eventual bioremediation process. Aerobic conditions were found in the aquifer, while microbial analyses of the groundwater indicated the presence of important hydrocarbon-degrading populations. Sixteen PAH-degrading strains were isolated with the ability to grow on naphthalene (5 strains), phenanthrene (3), fluorene (6) and pyrene (2). Most of the identified isolates belonged to the genus Pseudomonas, although, Comamonas, Sphingomonas Stenotrophomonas and Delftia were also found. A mixture of selected strains was evaluated by its performance of PAH degradation in soil-slurry systems, where efficiency of removal was naphthalene > fluorene > phenanthrene > pyrene. This study is an initial approach to evaluate the feasibility of applying a bioremediation
process in the contaminated site.
کلیدواژه‌ها
Groundwater؛ Hydrocarbon؛ Bioremediation؛ Polycyclic aromatic hydrocarbon؛ Bioslurry
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