Use of Onion Waste as Fuel for the Generation of Bioelectricity

Rojas-Flores, Segundo; Cruz-Noriega, Magaly De La; Castillo, Santiago Benites; Benites, Santiago M.; Esparza, Mario; Nazario-Naveda, Renny

doi:10.3390/molecules27030625

Cited by 30 publications

(13 citation statements)

References 67 publications

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“…2.5 Caracterización de las celdas de combustible microbiana. La caracterización diaria de corriente y voltaje se realizaron mediante un multímetro, marca Prasek Premium PR-85, y una resistencia externa de 100 Ω. Por otro lado, los valores de densidad de corriente (DC) y densidad de potencia (DP) fueron realizados mediante resistencia externas 10 ± 0.2, 40 ± 2.3, 50 ± 2.7, 100 ± 3.2, 300 ± 6.2, 390 ± 7.2, 560 ± 10, 680 ± 12.3, 820 ± 14.5, 1000 ± 20.5 Ω; mediante la fórmula DC=I/A y DP=IV/A [23], donde I es la corriente con diferentes resistencias externas, V es el voltaje de las celdas a circuito abierto y A el área (144 ± 5.2 cm 2 ). El monitoreo de los cambios de la conductividad (conductivity meter CD-4301) y el pH (pH-meter 110 Series Oakton) también fueron medidas.…”

Section: Identificación M Olecular De Galactomyces Spunclassified

Generation of electricity through yeast Galactomyces sp.

Noriega¹,

Flores²,

Naveda³

et al. 2022

Proceedings of the 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research A

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In the search for new fuels capable of generating electrical energy in a sustainable and environmentally friendly way, this research used the yeast Galactomyces sp in low-cost, laboratoryscale microbial fuel cells to provide a new innovative solution . Microbial fuel cells were made of polyethylene with zinc and copp er electrodes as anode and cathode, respectively. Managing to generate peak values of current and voltage in open circuit of 4.23033 ± 0.3102 mA and 0.7522 ± 0.03573 V, with an optimal pH of 7.84772 ± 0.21744 and peak electrical conductivity of the substrate of 58.89078 ± 2.51661 mS/cm. Similarly, the power density displa yed was 4.749 ± 0.294 W/cm2 with a current density of 351.086 mA/cm 2. Finally, the microbial fuel cells were connected in series, generating 2.60 V and turning on a green led light. Giving in this way a new and promising use of this yeast to generate electricity

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Section: Identificación M Olecular De Galactomyces Spunclassified

Generation of electricity through yeast Galactomyces sp.

Noriega¹,

Flores²,

Naveda³

et al. 2022

Proceedings of the 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research A

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“…Likewise, in MFCs, oxidation and reduction processes take place while COD is eliminated and electricity is generated [32].…”

Section: B Construction Of the Microbial Fuel Cellsmentioning

confidence: 99%

Electricity generation and wastewater treatment using microbial fuel cells with graphite and aluminum electrodes

QuiÑones¹,

Coronado²,

Leon³

et al. 2022

Proceedings of the 2nd LACCEI International Multiconference on Entrepreneurship, Innovation and Regional Development (LEIRD 202

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A microbial fuel cell (MFC) is a system that can integrate electricity generation and, at the same time, contribute to decontaminating wastewater, becoming an eco-friendly technology with the environment. In this research, microbial fuel cells with graphite and aluminum electrodes were used at different sizes: 9, 25 and 64 cm 2 , and a wastewater sample obtained from a rural location in Peru was used as substrate. The MFCs parameters of voltage, current and conductivity were monitored for 12 days, for the generation of electricity; and the parameters of Chemical Oxygen Demand (COD), Thermotolerant Coliforms, Turbidity and pH, for wastewater treatment. The MFCs with electrodes of 64 cm 2 were the ones that had the highest efficiency in the production of electricity, because they generated higher voltage, current and conductivitythroughout the days evaluated, with peaks of 0.22 V, 0.08 mA and 1.05 mS/cm, respectively. Likewise, a reduction in the content of COD, Thermotolerant Coliforms and Turbidity of the substrate used (70, 73 and 36%) was achieved, while the pH remained slightly stable, with values from 7.39 to 6.49 during the days evaluated. The MFCs are a promising approach to a sustainable future in which energy can be generated from the use of household wastewater, while simultaneously treating these effluents.

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“…Rojas et al (2022) demonstrated electricity generation from onion residues, generating maximum peaks of 4.459 ± 0.0608 mA and 0.991 ± 0.02 V of current and voltage, respectively. The species they identified at the molecular level were Pseudomona aeruginosa, Acinetobacter bereziniae, Stenotrophomonas maltophilia, and Yarrowia lipolytica adhered to the anode electrode [21]. Meanwhile, Bose et al (2019) identified six species of exoelectrogenic bacteria that degrade organic matter in wastewater.…”

Section: Introductionmentioning

confidence: 99%

Use of Wastewater and Electrogenic Bacteria to Generate Eco-Friendly Electricity through Microbial Fuel Cells

et al. 2023

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Power generation and wastewater treatment are two great challenges for sustainable development. Microbial fuel cells (MFCs) are a sustainable alternative that can generate bioelectricity in the bioremediation process of wastewater. For this reason, the objective of this research was to generate bioelectricity through double-chamber microbial-combustion cell systems from wastewater from the Covicorti Wastewater Treatment Plant (PTARC) in the anodic chamber and electrogenic bacteria such as Stenotrophomonas maltophilia, Acinetobacter bereziniae, and Achromobacteria xylosoxidans in the cathode chamber, respectively. Measurements of the voltage, current, power density, current density, and optical density of the bacteria and biochemical oxygen demand (BOD) were made. In addition, a metagenomic analysis of the wastewater sample was performed. It was shown that the MFC with A. xylosoxidans generated the highest voltage peak (1.01 ± 0.06 V) on day 24, while the MFC with S. maltophilia generated the highest current value (0.71 ± 0.02 mA). The pH levels were slightly alkaline, and the maximum anodic conductivity value was presented by the MFC with A. cerevisiae, with a peak value of 81 ± 2 mS/cm on day 24. On the other hand, a maximum power density and current density of 195,493 ± 4717 mW/m2 and 4987 A/cm2, respectively, were obtained in the MFC with A. xylosoxidans. Finally, the metagenomic analysis identified the predominant phyla of Proteobacteria present in wastewater samples capable of generating electrical energy as Bacillota, Pseudomonadota, Bacteroidota, Actinomyketone, and Campylobacterota.

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Use of Onion Waste as Fuel for the Generation of Bioelectricity

Cited by 30 publications

References 67 publications

Generation of electricity through yeast Galactomyces sp.

Generation of electricity through yeast Galactomyces sp.

Electricity generation and wastewater treatment using microbial fuel cells with graphite and aluminum electrodes

Use of Wastewater and Electrogenic Bacteria to Generate Eco-Friendly Electricity through Microbial Fuel Cells

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