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Remediación de sedimentos marinos anóxicos

Authors: Ferrández, Borja; Bordehore, Cesar; Sanchez Sanchez, Antonio; Fonfría, Eva S.; Cerdán, Mar;

Remediación de sedimentos marinos anóxicos

Abstract

El objetivo de este trabajo fue el desarrollo de una novedosa técnica de remediación de sedimentos marinos anóxicos a partir de la inyección de agua de mar saturada en oxígeno. El estudio se llevó a escala laboratorio, muestreando sedimento procedente de la playa de la Marineta Casiana (Dénia, Alicante), en una superficie de 20 m2 a 5 metros de la orilla. Se establecieron dos tratamientos: inyección de agua de mar saturada en oxígeno a 20 cm de profundidad desde la superficie del sedimento, durante 68 días, y con una frecuencia de inyección de 180:60 minutos (reposo:inyección), y un control sin tratar que reproducía las condiciones de campo. Los resultados muestran que la inyección de agua de mar saturada en oxígeno fue efectiva como método de remediación de los sedimentos fangosos en estudio, observándose una pérdida gradual del olor fétido, de la textura plástica y de la coloración oscura del sustrato, como consecuencia de la degradación de más del 80% de la materia orgánica acumulada y por la oxidación de los compuestos de azufre reducidos generados bajo esas condiciones de anaerobiosis.

El presente trabajo se ha realizado con la financiación de la Universidad de Alicante (Prueba de Concepto, BOUA 5/6/2015) y ROUTE PONT SL.

Country
Spain
Related Organizations
Keywords

Edafología y Química Agrícola, Oxidación, Remediación, Sedimentos marinos, Hipoxia, Ecología, Playa

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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