Electricity generation in different cell connections with optimized anodic materials in microbial fuel cells

Halim, Md. Abdul; Rahman, Md. Owaleur; Eti, Ismat Ara; Shefa, Nawrin Rahman; Ibrahim, M; Alam, Jahangir

doi:10.1080/15567036.2020.1851818

Cited by 5 publications

(6 citation statements)

References 29 publications

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“…The cathode was aerated (10 L•h −1 ) [63]. The ML-MFCs were constantly connected with a 10 Ω resistor [5,20,73,74]. For the present research process, yeast wastewater (PYWW) derived from yeast production was applied.…”

Section: Measurements Of Voltage and Power During The Operation Of Ml...mentioning

confidence: 99%

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Electricity Production from Yeast Wastewater in Membrane-Less Microbial Fuel Cell with Cu-Ag Cathode

Włodarczyk

2023

Energies

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Wastewater has high potential as an energy source. Therefore, it is important to recover even the smallest part of this energy, e.g., in microbial fuel cells (MFCs). The obtained electricity production depends on the process rate of the electrodes. In MFC, the microorganisms are the catalyst, and the cathode is usually made of carbon material (e.g., with the addition of Pt). To increase the MFC efficiency (and reduce costs by reducing use of the noble metals), it is necessary to search the new cathode materials. In this work, the electricity production from yeast wastewater in membrane-less microbial fuel cells with Cu-Ag cathode was analyzed. In the first place, the measurements of the stationary potential of the electrodes (with Cu-Ag catalyst obtained by the electrochemical deposition technique) were performed. Because the cathode is constantly oxidized during the operation of ML-MFC, it was necessary to pre-oxidize the cathodes. Without pre-oxidation, there is a risk of changing the catalytic properties of the electrodes (along with the level of oxidation of the cathodes’ surface) throughout their operation in the ML-MFC. These measurements allowed to assess the oxidation activity of the Cu-Ag cathodes. Additionally, the influence of anodic charge on the catalytic activity of the Cu-Ag cathodes was measured. Next, the analysis of the electric energy production during the operation of the membrane-less microbial fuel cell (ML-MFC) fed by process yeast wastewater was performed. The highest parameters (the power of 6.38 mW and the cell voltage of 1.09 V) were obtained for a Cu-Ag catalyst with 5% of Ag, which was oxidized over 6 h, and after 3 anodic charges. This research proved that it is feasible to obtain the bio-electricity in the ML-MFC with Cu-Ag cathode (fed by yeast wastewater).

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Section: Measurements Of Voltage and Power During The Operation Of Ml...mentioning

confidence: 99%

“…MFCs allow both to generate electricity and to pre-treat wastewater [4,18,19]. Thus, they can be both a source of energy and a supporting element of wastewater treatment in wastewater treatment plants [4,8,[18][19][20]. An example is the reduction of chemical oxygen demand (COD) [21,22].…”

Section: Introductionmentioning

confidence: 99%

Electricity Production from Yeast Wastewater in Membrane-Less Microbial Fuel Cell with Cu-Ag Cathode

Włodarczyk

2023

Energies

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“…Regarding electrode material selection, chemical stability, biocompatibility, and conductivity are desired properties for optimizing EF performance [ 86 ]. Although benchmarked with its conductivity and arc erosion resistance, copper is not an ideal electrode material due to its antibacterial features.…”

Section: Microbial Fuel Cell (Mfc)mentioning

confidence: 99%

“…Notably, the power capacity can be increased by connecting multiple individual unit chambers in either parallel or series configurations. Halim et al [ 86 ] reported an 87% chemical oxygen demand removal efficiency with an optimal power density of 115.94 mW/m 2 was attained in a parallel-wired stacked EF system. In a different study, a serially stacked EF system comprising graphite felt as the primary material for working electrodes was proposed by Kim et al [ 95 ], which yielded 3.3 V as the maximum voltage, realizing higher efficiency up to 16.5 times (boosted voltage from 0.2 V to 3.3 V) compared to single EF system.…”

Section: Microbial Fuel Cell (Mfc)mentioning

confidence: 99%

Sustainable circular biorefinery approach for novel building blocks and bioenergy production from algae using microbial fuel cell

et al. 2023

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The imminent need for transition to a circular biorefinery using microbial fuel cells (MFC), based on the valorization of renewable resources, will ameliorate the carbon footprint induced by industrialization. MFC catalyzed by bioelectrochemical process drew significant attention initially for its exceptional potential for integrated production of biochemicals and bioenergy. Nonetheless, the associated costly bioproduct production and slow microbial kinetics have constrained its commercialization. This review encompasses the potential and development of macroalgal biomass as a substrate in the MFC system for L-lactic acid (L-LA) and bioelectricity generation. Besides, an insight into the state-of-the-art technological advancement in the MFC system is also deliberated in detail. Investigations in recent years have shown that MFC developed with different anolyte enhances power density from several µW/m 2 up to 8160 mW/m 2 . Further, this review provides a plausible picture of macroalgal-based L-LA and bioelectricity circular biorefinery in the MFC system for future research directions.

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“…For making the salt bridge, pieces of surgical cloth were soaked in 0.1 M agar solution for about 2-3 h. After soaking, the pieces of surgical cloth were inserted in a PVC pipe with a diameter and length of 0.5 cm and 4.0 cm, respectively. All joints of the MFC were sealed using M-seal (K1 Mart, India) to prevent any leakage [17]. A schematic presentation and experimental setup of a double-chamber MFC are shown in Figure 1.…”

Section: Materials' Collection and Cell Constructionmentioning

confidence: 99%

Effect of Anolyte pH on the Performance of a Dual-Chambered Microbial Fuel Cell Operated with Different Biomass Feed

Halim¹,

Rahman²,

Ibrahim³

et al. 2021

Journal of Chemistry

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Finding sustainable alternative energy resources and treating wastewater are the two most important issues that need to be solved. Microbial fuel cell (MFC) technology has demonstrated a tremendous potential in bioelectricity generation with wastewater treatment. Since wastewater can be used as a source of electrolyte for the MFC, the salient point of this study was to investigate the effect of pH on bioelectricity production using various biomass feed (wastewater and river water) as the anolyte in a dual-chambered MFC. Maximum extents of power density (1459.02 mW·m−2), current density (1288.9 mA·m−2), and voltage (1132 mV) were obtained at pH 8 by using Bhairab river water as a feedstock in the MFC. A substantial extent of chemical oxygen demand (COD) removal (94%) as well as coulombic efficiency (41.7%) was also achieved in the same chamber at pH 8. The overall performance of the MFC, in terms of bioelectricity generation, COD removal, and coulombic efficiency, indicates a plausible utilization of the MFC for wastewater treatment as well as bioelectricity production.

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Electricity generation in different cell connections with optimized anodic materials in microbial fuel cells

Cited by 5 publications

References 29 publications

Electricity Production from Yeast Wastewater in Membrane-Less Microbial Fuel Cell with Cu-Ag Cathode

Electricity Production from Yeast Wastewater in Membrane-Less Microbial Fuel Cell with Cu-Ag Cathode

Sustainable circular biorefinery approach for novel building blocks and bioenergy production from algae using microbial fuel cell

Effect of Anolyte pH on the Performance of a Dual-Chambered Microbial Fuel Cell Operated with Different Biomass Feed

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