English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/170577
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Biorrecuperación de un suelo contaminado con trifluralina usando bioaumento y ciclodextrina

Otros títulosBioremediation of a trifluralin contaminated soil using bioaugmentation and cyclodextrin
AutorLara Moreno, Alba; Rubio Bellido, Marina ; Madrid Díaz, Fernando ; Morillo González, Esmeralda ; Villaverde Capellán, J.
Palabras claveSuelo
Bbiodegradación
Cepas bacterianas degradadoras
Ciclodextrina
Trifluralina
Fecha de publicación20-jun-2018
EditorSociedad Española de la Ciencia del Suelo
CitaciónVIII Congreso Ibérico de las Ciencias del Suelo: 381-384 (2018)
Resumen[EN]: Trifluralin is an herbicide highly persistent with a strong adsorption capacity on soil particles. This compound is considered highly toxic to the environment and is included in the list of priority contaminants drawn up by European Commission (Directive 2008/105/EC), being its use as herbicide forbidden in the European zone. Although it is a fotosensitive molecule, when it reaches the soil becomes a very persistent compound, being in this case, biodegradation its principal dissipation path in soil. In this work, different bioremediation techniques are considered for application on an agricultural soil artificially contaminated with trifluralin. These techniques consist in bioaugmentation, using a microbial degrading consortium formed by different organohalogenated compounds-degrading bacterial strains, and/or cyclodextrin application as hydrosolubility enhancer compound and biostimulant for the soil endogenous flora potentially degrader of trifluralin. From the obtained results, it was concluded that both proposed bioremediation techniques were proved to be efficient, provoking a drastic increasing in herbicide biodegradation rate in soil, achieving a dissipation of the 50% of the trifluralin initially presents in the soil (DT50) in a period of less than 19 days when only cyclodextrin was used, and less than 4 days when a specific degrader consortium was employed
[ES]: Trifluralin is an herbicide highly persistent with a strong adsorption capacity on soil particles. This compound is considered highly toxic to the environment and is included in the list of priority contaminants drawn up by European Commission (Directive 2008/105/EC), being its use as herbicide forbidden in the European zone. Although it is a fotosensitive molecule, when it reaches the soil becomes a very persistent compound, being in this case, biodegradation its principal dissipation path in soil. In this work, different bioremediation techniques are considered for application on an agricultural soil artificially contaminated with trifluralin. These techniques consist in bioaugmentation, using a microbial degrading consortium formed by different organohalogenated compounds-degrading bacterial strains, and/or cyclodextrin application as hydrosolubility enhancer compound and biostimulant for the soil endogenous flora potentially degrader of trifluralin. From the obtained results, it was concluded that both proposed bioremediation techniques were proved to be efficient, provoking a drastic increasing in herbicide biodegradation rate in soil, achieving a dissipation of the 50% of the trifluralin initially presents in the soil (DT50) in a period of less than 19 days when only cyclodextrin was used, and less than 4 days when a specific degrader consortium was employed
Descripción4 páginas.-- 2 figuras.--2 tablas.-- 6 referencias.-- Póster presentado en el VIII Congreso Ibérico de las Ciencias del Suelo. VIII Congresso Ibérico de Ciências do Solo. DONOSTIA-SAN SEBASTIÁN. 20 - 22 junio 2018..-- El documento completo se encuentra para su descarga en http://www.cics2018.com/libro-de-abstracts/
URIhttp://hdl.handle.net/10261/170577
ISBN978-989-99665-0-5
Aparece en las colecciones: (IRNAS) Libros y partes de libros
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Biorrecuperacion_suelo_contaminado_trifluralina_2018_CL_Poster.pdf613,4 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.