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DIGITAL.CSIC
Conference object . 2016 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Preparación y ensayos de bioadsorbentes para mitigar la movilidad de contaminantes en suelos

Authors: Hermosín, M.C.; Adelino, M. A.; Cornejo, J.; Celis, Rafael;

Preparación y ensayos de bioadsorbentes para mitigar la movilidad de contaminantes en suelos

Abstract

El desarrollo de adsorbentes para inmovilizar contaminantes en suelos es un área de gran interés, por su creciente necesidad. Mediante la interacción de dos arcillas naturales esmectíticas (SWy y CTI), una hidrotalcita sintética y su producto de calcinación, con el agua de lavado de un alperujo se pretenden obtener bioadsorbentes, que puedan emular al complejo órgano mineral del suelo y puedan así ser utilizados como enmendantes naturales, para aumentar la retención y disminuir la movilidad de contaminantes orgánicos en los suelos. Este proceso de interaccion ya se ha visto previamente que puede ser beneficioso en sí mismo para eliminar la materia orgánica soluble (MOS) del alperujo así como su toxicidad para plantas*. Se prepararon 4 adsorbentes, se midio la adsorción de 3 herbicidas (diuron, terbutilazina y terbutrina) y el dibenzofurano y se ensayó la posible formación in situ de estos bioadsorbentes, mezclando previamente las arcillas con el suelo y posteriormente añadiendo el contaminante en disolución conteniendo la MOS del alperujo. Estos bioadsorbentes presentaron un aumento en la adsorción de contaminantes respecto a las materias primas, especialmente para los compuestos más hidrófobos (dibenzofurano y terbutrina). La enmienda previa de un suelo con las arcillas y la posterior adición del contaminante en presencia de la MOS de alperujo, muestra la formación in situ de estos adsorbentes, con el consiguiente gran aumento de la retención de terbutrina y dibenzofurano en el suelo.

P07-AGR-03077, P11-AGR-07400 y AGR-264 de Junta de Andalucía, (Programas FEDER-FSE de la UE ) and Convenio RECUPERA 2020 del MICINN-CSIC.

Peer Reviewed

Country
Spain
Related Organizations
Keywords

Hidrotalcita, Herbicidas, Terbutrina., Esmectitas, Diuron, Terbutilazina, Arcillas, Dibenzofurano, Adsorción

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green