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Evaluación del potencial electrogénico de sedimentos costeros de la playa La Azufrada, isla Gorgona

Authors: Mora Collazos, Alexander; Bravo Montaño, Enrique;

Evaluación del potencial electrogénico de sedimentos costeros de la playa La Azufrada, isla Gorgona

Abstract

El presente trabajo exploratorio, evaluó la respuesta electrogénica de sedimentos costeros colectados en la Playa La Azufrada en la Isla Gorgona; se comparó con la respuesta electrogénica de lodos y aguas provenientes del lago de la microestación del Departamento de Biología del Campus Universitario Meléndez de la Universidad del Valle. Los sustratos fueron evaluados en celdas de combustible microbianas (MFC por su nombre en inglés) mediante curvas de densidad de potencia. Los sustratos ambientales fueron utilizados como inoculo y único sustrato energético. Al finalizar los ensayos, se realizó microscopía electrónica a los ánodos de las MFC. Se reportaron valores de densidad de potencia máximas de 3.1 mW/m2 en el día 19 de operación para el caso de las MFC alimentadas con sedimentos de lago y de 0.67 mW/m2 en el día 15 para el caso de los sedimentos marinos. Las observaciones mediante microscopía electrónica muestran diferencias en la formación de la biopelícula de los dos ambientes. Los ánodos de las MFC alimentadas con sedimentos marinos mostraron una formación de biopelícula insipiente. Los ensayos demuestran que los sedimentos marinos colectados presentan actividad electrogénica, lo cual abre la posibilidad de realizar estudios sobre las poblaciones bacterianas electrogénicas y las aplicaciones que puedan tener las MFC en estos ambientes

Keywords

sedimentos marinos, micro-biotic fuel cells, electro-chemical performance, celdas de combustible microbianas, desempeño electroquímico, marine sediments

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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
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gold