Biotransformation of chromium (VI) in liquid effluents by resistant bacteria isolated from the Matanza-Riachuelo basin, in Argentina
| Autor: | Carolina Caimán, Natalia Gorino, Carlos E. Gómez, Sonia Edith Korol, María Susana Fortunato, Ana Julieta González, Lorena Marquina, Carolina Mujica, Marcela Alejandra Radice, Alfredo Gallego |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Chromium
0106 biological sciences Otras Ciencias Biológicas Argentina chemistry.chemical_element Zinc 010501 environmental sciences 01 natural sciences Metal purl.org/becyt/ford/1 [https] Ciencias Biológicas Biotransformation 010608 biotechnology HEAVY METALS Environmental Chemistry purl.org/becyt/ford/1.6 [https] Waste Management and Disposal Effluent 0105 earth and related environmental sciences Water Science and Technology Bacteria Strain (chemistry) General Medicine CHROMIUM (VI) Copper INDUSTRIAL EFFLUENTS Biodegradation Environmental chemistry visual_art Environmental chemistry visual_art.visual_art_medium BACTERIAL RESISTANCE BIOTRANSFORMATION Surface water CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| DOI: | 10.1080/09593330.2017.1367844 |
| Popis: | The aims of this investigation were to evaluate the bacterial resistance to zinc, copper, chromium (VI) and lead in surface water streams from Buenos Aires, Argentina; to select a chromium-resistant strain able to remove the metal in batch process and to evaluate the potential of this strain to remove chromium (VI) in liquid effluents. Bacterial resistance to the metals was evaluated by determining the minimal inhibitory concentration. The kinetic of chromium (VI) removal by one of the resistant strains was studied in nutrient broth with 50 and 100 mg L−1 of the metal, as well as an effluent from an electroplating industry. High resistance to all the metals under study was observed in the bacterial communities of the Matanza-Riachuelo basin. A chromium-resistant strain was isolated and identified as Microbacterium sp. It was able to remove 50 and 100 mg L−1 of Cr (VI) in 36 and 66 h respectively, with efficiency higher than 99%. Experiments with liquid effluents showed the ability of the strain to transform 150 mg L−1 of the metal in 84 h, with efficiency higher than 99%. These results show the potential of this native strain for the treatment of liquid effluents that contain chromium (VI). Fil: González, Ana Julieta. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Caimán, Carolina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Gorino, Natalia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Fortunato, María Susana. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Radice, Marcela Alejandra. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gómez, Carlos. Ministerio del Interior, Obras Públicas y Vivienda. Secretaría de Obras Públicas. Subsecretaría de Recursos Hídricos. Instituto Nacional del Agua y del Ambiente (Ezeiza); Argentina Fil: Mujica, Carolina. Ministerio del Interior, Obras Públicas y Vivienda. Secretaría de Obras Públicas. Subsecretaría de Recursos Hídricos. Instituto Nacional del Agua y del Ambiente (Ezeiza); Argentina Fil: Marquina, Lorena. Ministerio del Interior, Obras Públicas y Vivienda. Secretaría de Obras Públicas. Subsecretaría de Recursos Hídricos. Instituto Nacional del Agua y del Ambiente (Ezeiza); Argentina Fil: Gallego, Alfredo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Korol, Sonia Edith. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina |
| Databáze: | OpenAIRE |
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