Effect of the cathode/anode ratio and the choice of cathode catalyst on the performance of microbial fuel cell transducers for the determination of microbial activity

Uría, Naroa; Sanchez, Debbie; Mas, Roser; Sánchez, Olga; Muñoz, Francesc Xavier; Mas, Jordi

doi:10.1016/j.snb.2011.02.030

Cited by 20 publications

(10 citation statements)

References 22 publications

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“…The substitution was carried out because a ferric/ferrous iron cathode allows for obtaining a higher standard potential Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system • 5 than the air cathode, i.e. +770 mV vs. a normal hydrogen electrode (Uría et al, 2012). This kind of cathode presents other advantages compared to the air cathode such as fast reaction at carbon electrodes (Uría et al, 2012, Ter Heijne et al, 2006.…”

Section: Start-upmentioning

confidence: 99%

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Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system

et al. 2017

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SUMMARY:Olive oil washing water derived from the two-phase manufacturing process was assessed as an electron donor in a bio-electrochemical system (BES) operating at 35 ºC. Start-up was carried out by using acetate as a substrate for the BES, reaching a potential of around +680 mV. After day 54, BES was fed with olive oil washing water. The degradation of olive oil washing water in the BES generated a maximum voltage potential of around +520 mV and a Chemical Oxygen Demand (COD) removal efficiency of 41%. However, subsequent loads produced a decrease in the COD removal, while current and power density diminished greatly. The deterioration of these parameters could be a consequence of the accumulation of recalcitrant or inhibitory compounds, such as phenols. These results demonstrated that the use of olive oil washing water as an electron donor in a BES is feasible, although it has to be further investigated in order to make it more suitable for a real application. KEYWORDS: Bio-electrochemical system; COD removal; Electricity generation; Electron donor; Olive oil washing watersRESUMEN: Idoneidad del agua de lavado de aceites de oliva como donador de electrones en un sistema alimentado por lotes bioelectroquímico. El agua de lavado del aceite de oliva procedente del proceso de elaboración en dos fases fue utilizada como donador de electrones en un Sistema Bioelectroquímico (BES) operado a 35ºC. Se realizó una etapa de arranque del sistema mediante alimentación con acetato, alcanzando un potencial de referencia de +680 mV. Tras 54 días, el sistema se alimentó con agua de lavado de aceite, generando un potencial máximo de +520 mV y una eliminación de materia del 41%, en demanda química de oxígeno. Sin embargo, cargas subsecuentes conllevaron una bajada en la eliminación de materia, mientras que la densidad de corriente y de potencia disminuyeron ostensiblemente. El empeoramiento de estos parámetros puede deberse a la acumulación de compuestos recalcitrantes o inhibidores, como fenoles. Por tanto, el uso del agua de lavado de aceite de oliva en un BES es factible, aunque es necesario llevar a cabo nuevas investigaciones que hagan más atractiva su aplicación a escala real. Citation/Cómo citar este artículo: Fermoso FG, Fernández-Rodríguez MJ, Jiménez-Rodríguez A, Serrano A, Borja R. 2017. Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system. Grasas Aceites 68 (2), e198. http://dx

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Section: Start-upmentioning

confidence: 99%

“…+770 mV vs. a normal hydrogen electrode (Uría et al, 2012). This kind of cathode presents other advantages compared to the air cathode such as fast reaction at carbon electrodes (Uría et al, 2012, Ter Heijne et al, 2006.…”

Section: Start-upmentioning

confidence: 99%

Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system

et al. 2017

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“…Its advantages have been demonstrated in some cases, for example desalination, decolorization and the treatment of chromium (Huang et al, 2010;Jacobson et al, 2011;Kong et al, 2015bKong et al, , 2015c. These studies indeed provided the feasibility of the BES with sleeve-type configuration to treat wastewater, however, as a sustainable and environment-friendly technology, the practical application of BES is strongly limited by their configuration optimum and the assembled optimization for operation (Ge et al, 2014;Gil-Carrera et al, 2011;Ping and He, 2013;Raman and Lan, 2012;Uría et al, 2012), which could provide important theory for further scale-up. The emerging alternative application of BES for recalcitrant pollutants has not yet been evaluated in optimizing the state of working position, with inner chamber or outer chamber.…”

Section: Introductionmentioning

confidence: 96%

Optimization of working cathode position in sleeve-type bioelectrochemical system with inner chamber/outer chamber for azo dye treatment

Kong

Wang

Ren

2015

Bioresource Technology

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“…This means apart from serving as an alternate power source for remote sensors, MFCs themselves may be used as sensors to detect many parameters Modin and Wilén 2012;Uríaa et al 2012). Though some reviews (Dewan et al 2014;Sun et al 2015) briefly mention MFC sensors with limited applications, this present review summarizes the latest developments in various biosensor applications using MFCs including monitoring microbial activity, testing BOD, detection of toxicants, detection of microbial biofilms that cause biocorrosion and some other unusual application.…”

Section: Introductionmentioning

confidence: 99%

Microbial fuel cells for biosensor applications

et al. 2015

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Microbial fuel cells (MFCs) face major hurdles for real-world applications as power generators with the exception of powering small sensor devices. Despite tremendous improvements made in the last two decades, MFCs are still too expensive to build and operate and their power output is still too small. In view of this, in recently years, intensive researches have been carried out to expand the applications into other areas such as acid and alkali production, bioremediation of aquatic sediments, desalination and biosensors. Unlike power applications, MFC sensors have the immediate prospect to be practical. This review covers the latest developments in various proposed biosensor applications using MFCs including monitoring microbial activity, testing biochemical oxygen demand, detection of toxicants and detection of microbial biofilms that cause biocorrosion.

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Effect of the cathode/anode ratio and the choice of cathode catalyst on the performance of microbial fuel cell transducers for the determination of microbial activity

Cited by 20 publications

References 22 publications

Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system

Suitability of olive oil washing water as an electron donor in a feed batch operating bio-electrochemical system

Optimization of working cathode position in sleeve-type bioelectrochemical system with inner chamber/outer chamber for azo dye treatment

Microbial fuel cells for biosensor applications

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