The Influence of External Load on the Performance of Microbial Fuel Cells
In this work, the effect of the external load on the current and power generation, as well as on the pollutant removal by microbial fuel cells (MFCs), has been studied by step-wise modifying the external load. The load changes included a direct scan, in which the external resistance was increased fr...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/29196 |
| Acceso en línea: | http://hdl.handle.net/10578/29196 |
| Access Level: | acceso abierto |
| Palabra clave: | Ingeniería Química Pila de combustible microbiana Generación de bioelectricidad Resistencia externa |
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España |
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| dc.title.none.fl_str_mv |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| title |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| spellingShingle |
The Influence of External Load on the Performance of Microbial Fuel Cells Potrykus, Szymon Ingeniería Química Pila de combustible microbiana Generación de bioelectricidad Resistencia externa |
| title_short |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| title_full |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| title_fullStr |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| title_full_unstemmed |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| title_sort |
The Influence of External Load on the Performance of Microbial Fuel Cells |
| dc.creator.none.fl_str_mv |
Potrykus, Szymon León Fernández, Luis Fernando Nieznański, Janusz Karkosinski, Dariusz Fernández Morales, Francisco Jesús |
| author |
Potrykus, Szymon |
| author_facet |
Potrykus, Szymon León Fernández, Luis Fernando Nieznański, Janusz Karkosinski, Dariusz Fernández Morales, Francisco Jesús |
| author_role |
author |
| author2 |
León Fernández, Luis Fernando Nieznański, Janusz Karkosinski, Dariusz Fernández Morales, Francisco Jesús |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Ingeniería Química Pila de combustible microbiana Generación de bioelectricidad Resistencia externa |
| topic |
Ingeniería Química Pila de combustible microbiana Generación de bioelectricidad Resistencia externa |
| description |
In this work, the effect of the external load on the current and power generation, as well as on the pollutant removal by microbial fuel cells (MFCs), has been studied by step-wise modifying the external load. The load changes included a direct scan, in which the external resistance was increased from 120 Ω to 3300 Ω, and a subsequent reverse scan, in which the external resistance was decreased back to 120 Ω. The reduction in the current, experienced when increasing the external resistance, was maintained even in the reverse scan when the external resistance was step-wise decreased. Regarding the power exerted, when the external resistance was increased below the value of the internal resistance, an enhancement in the power exerted was observed. However, when operating near the value of the internal resistance, a stable power exerted of about 1.6 µW was reached. These current and power responses can be explained by the change in population distribution, which shifts to a more fermentative than electrogenic culture, as was confirmed by the population analyses. Regarding the pollutant removal, the effluent chemical oxygen demand (COD) decreased when the external resistance increased up to the internal resistance value. However, the effluent COD increased when the external resistance was higher than the internal resistance. This behavior was maintained in the reverse scan, which confirmed the modification in the microbial population of the MFC |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021 2021 |
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info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10578/29196 |
| url |
http://hdl.handle.net/10578/29196 |
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Inglés |
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Inglés |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
MDPI |
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MDPI |
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reponame:RUIdeRA. Repositorio Institucional de la UCLM instname:Universidad de Castilla-La Mancha |
| instname_str |
Universidad de Castilla-La Mancha |
| reponame_str |
RUIdeRA. Repositorio Institucional de la UCLM |
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RUIdeRA. Repositorio Institucional de la UCLM |
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1869420740928864256 |
| spelling |
The Influence of External Load on the Performance of Microbial Fuel CellsPotrykus, SzymonLeón Fernández, Luis FernandoNieznański, JanuszKarkosinski, DariuszFernández Morales, Francisco Jesús Ingeniería QuímicaPila de combustible microbianaGeneración de bioelectricidadResistencia externaIn this work, the effect of the external load on the current and power generation, as well as on the pollutant removal by microbial fuel cells (MFCs), has been studied by step-wise modifying the external load. The load changes included a direct scan, in which the external resistance was increased from 120 Ω to 3300 Ω, and a subsequent reverse scan, in which the external resistance was decreased back to 120 Ω. The reduction in the current, experienced when increasing the external resistance, was maintained even in the reverse scan when the external resistance was step-wise decreased. Regarding the power exerted, when the external resistance was increased below the value of the internal resistance, an enhancement in the power exerted was observed. However, when operating near the value of the internal resistance, a stable power exerted of about 1.6 µW was reached. These current and power responses can be explained by the change in population distribution, which shifts to a more fermentative than electrogenic culture, as was confirmed by the population analyses. Regarding the pollutant removal, the effluent chemical oxygen demand (COD) decreased when the external resistance increased up to the internal resistance value. However, the effluent COD increased when the external resistance was higher than the internal resistance. This behavior was maintained in the reverse scan, which confirmed the modification in the microbial population of the MFCEn este trabajo se ha estudiado el efecto de la carga externa sobre la generación de corriente y potencia, así como sobre la eliminación de contaminantes por pilas de combustible microbianas (MFC), modificando paso a paso la carga externa. Los cambios de carga incluyeron un escaneo directo, en el que la resistencia externa se incrementó de 120 Ω a 3300 Ω, y un escaneo inverso posterior, en el que la resistencia externa se redujo de nuevo a 120 Ω. La reducción de la corriente, experimentada al aumentar la resistencia externa, se mantuvo incluso en la exploración inversa cuando la resistencia externa disminuyó gradualmente. En cuanto a la potencia ejercida, cuando la resistencia externa se incrementó por debajo del valor de la resistencia interna, se observó una mejora en la potencia ejercida. Sin embargo, cuando se opera cerca del valor de la resistencia interna, se ejerce una potencia estable de aproximadamente 1. Se alcanzaron 6 µW. Estas respuestas de corriente y potencia pueden explicarse por el cambio en la distribución de la población, que cambia a un cultivo más fermentativo que electrogénico, como lo confirmaron los análisis de población. En cuanto a la remoción de contaminantes, la demanda de oxígeno químico del efluente (DQO) disminuyó cuando la resistencia externa aumentó hasta el valor de resistencia interna. Sin embargo, la DQO del efluente aumentó cuando la resistencia externa fue mayor que la resistencia interna. Este comportamiento se mantuvo en el análisis inverso, que confirmó la modificación en la población microbiana del MFC. la demanda de oxígeno químico del efluente (DQO) disminuyó cuando la resistencia externa aumentó hasta el valor de resistencia interna. Sin embargo, la DQO del efluente aumentó cuando la resistencia externa fue mayor que la resistencia interna. Este comportamiento se mantuvo en el análisis inverso, que confirmó la modificación en la población microbiana del MFC. la demanda de oxígeno químico del efluente (DQO) disminuyó cuando la resistencia externa aumentó hasta el valor de resistencia interna. Sin embargo, la DQO del efluente aumentó cuando la resistencia externa fue mayor que la resistencia interna. Este comportamiento se mantuvo en el análisis inverso, que confirmó la modificación en la población microbiana del MFC.MDPI202120212021info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/29196reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/291962026-05-27T07:36:41Z |
| score |
15,300719 |