Comportamiento de los metales empleados en tratamientos agrícolas en mesocosmos de sedimentos de humedales salinos
Fecha
2024-09-06
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Las áreas protegidas como los humedales se ven afectadas por la acumulación de metales vertidos durante tratamientos agrícolas y se necesita de estudios experimentales que ayuden a vislumbrar la movilidad y potencial toxicidad de los mismos. La experimentación a nivel de mesocosmos de sedimentos naturales expuestos a contaminantes con nanopartículas de Cu permitirá conocer cómo interaccionan con los componentes del sedimento. A través de la medida de parámetros físico-químicos, espectroscopía de difracción de rayos X (XRD), microscopía electrónica de barrido (SEM) y el análisis químico, se logrará la caracterización cristalográfica, mineralógica y geoquímica de las fases neoformadas durante los experimentos de mesocosmos de sedimentos de humedales salinos provenientes de la provincia de Jaén. Los resultados sugieren tres rutas de acumulación de Cu que involucran reacciones en disolución y actividad de microorganismos, favorecidos por las condiciones adecuadas para desestabilización y transporte de las nanopartículas de Cu.
Protected areas such as wetlands are affected by the accumulation of metals discharged during agricultural treatments and experimental studies are needed to help glimpse their mobility and potential toxicity. Experimentation at the mesocosm level of natural sediments exposed to contaminants with Cu nanoparticles will allow to understand how they interact with the sediment components. Through the measurement of physical-chemical parameters, X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) and chemical analysis, the crystallographic, mineralogical and geochemical characterization of the neoformed phases will be achieved during the experiments of mesocosms of saline wetland sediments from the province of Jaén. The results suggest three Cu accumulation routes that involve reactions in solution and microorganism activity, favoured by the appropriate conditions for destabilization and transport of Cu nanoparticles.
Protected areas such as wetlands are affected by the accumulation of metals discharged during agricultural treatments and experimental studies are needed to help glimpse their mobility and potential toxicity. Experimentation at the mesocosm level of natural sediments exposed to contaminants with Cu nanoparticles will allow to understand how they interact with the sediment components. Through the measurement of physical-chemical parameters, X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) and chemical analysis, the crystallographic, mineralogical and geochemical characterization of the neoformed phases will be achieved during the experiments of mesocosms of saline wetland sediments from the province of Jaén. The results suggest three Cu accumulation routes that involve reactions in solution and microorganism activity, favoured by the appropriate conditions for destabilization and transport of Cu nanoparticles.