Microbial Fuel Cell for Energy Production, Nutrient Removal and Recovery from Wastewater: A Review

Paucar, N. Evelin; Sato, Chikashi

doi:10.3390/pr9081318

Cited by 34 publications

(17 citation statements)

References 189 publications

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“…Therefore, the high biodiversity of microorganisms is important in MFC systems using complex effluents. Organic nitrogen in wastewater is converted to NH 4 -N, which is removed in the MFC mainly by migration through the EMF and volatilization in the cathode chamber [47] or by precipitation in the form of struvite, cattiite ((Mg 3 (PO 4 ) 2 •22H 2 O)) or in the presence of iron-vivianite (Fe 3 (PO 4 ) 2 •8H 2 O) [48]. In anaerobic environments, in the presence of Fe(III), NH 4…”

Section: Cod Removalmentioning

confidence: 99%

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Nosek

Mikołajczyk

Cydzik‐Kwiatkowska

2023

IJERPH

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This study investigated how anode electrode modification with iron affects the microbiome and electricity generation of microbial fuel cells (MFCs) fed with municipal wastewater. Doses of 0.0 (control), 0.05, 0.1, 0.2, and 0.4 g Fe2O3 per the total anode electrode area were tested. Fe2O3 doses from 0.05 to 0.2 g improved electricity generation; with a dose of 0.10 g Fe2O3, the cell power was highest (1.39 mW/m2), and the internal resistance was lowest (184.9 Ω). Although acetate was the main source of organics in the municipal wastewater, propionic and valeric acids predominated in the outflows from all MFCs. In addition, Fe-modification stimulated the growth of the extracellular polymer producers Zoogloea sp. and Acidovorax sp., which favored biofilm formation. Electrogenic Geobacter sp. had the highest percent abundance in the anode of the control MFC, which generated the least electricity. However, with 0.05 and 0.10 g Fe2O3 doses, Pseudomonas sp., Oscillochloris sp., and Rhizobium sp. predominated in the anode microbiomes, and with 0.2 and 0.4 g doses, the electrogens Dechloromonas sp. and Desulfobacter sp. predominated. This is the first study to holistically examine how different amounts of Fe on the anode affect electricity generation, the microbiome, and metabolic products in the outflow of MFCs fed with synthetic municipal wastewater.

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Section: Cod Removalmentioning

confidence: 99%

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Nosek

Mikołajczyk

Cydzik‐Kwiatkowska

2023

IJERPH

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“…External resistance is one of the highly significant factors for the commercialization of microbial fuel cells [ 20 , 21 ]. The performance of MFC is affected by external resistance, as it limits the flow of electrons from the anode electrode to the cathode electrode [ 22 ]. Even though the power-generating microorganisms can overcome the system’s overall resistance, choosing the right external resistance can reduce system losses and optimize efficiency [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Magnetite-Nanoparticles and Microbial Fuel Cell on Anaerobic Digestion: Influence of External Resistance

et al. 2023

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In this paper, the application of magnetite-nanoparticles and a microbial fuel cell (MFC) was studied on the anaerobic digestion (AD) of sewage sludge. The experimental set-up included six 1 L biochemical methane potential (BMP) tests with different external resistors: (a) 100 Ω, (b) 300 Ω, (c) 500 Ω, (d) 800 Ω, (e) 1000 Ω, and (f) a control with no external resistor. The BMP tests were carried out using digesters with a working volume of 0.8 L fed with 0.5 L substrate, 0.3 L inoculum, and 0.53 g magnetite-nanoparticles. The results suggested that the ultimate biogas generation reached 692.7 mL/g VSfed in the 500 Ω digester, which was substantially greater than the 102.6 mL/g VSfed of the control. The electrochemical efficiency analysis also demonstrated higher coulombic efficiency (81.2%) and maximum power density (30.17 mW/ m2) for the 500 Ω digester. The digester also revealed a higher maximum voltage generation of 0.431 V, which was approximately 12.7 times the 0.034 V of the lowest-performing MFC (100 Ω digester). In terms of contaminants removed, the best-performing digester was the digester with 500 Ω, which reduced contaminants by more than 89% on COD, TS, VS, TSS and color. In terms of cost-benefit analysis, this digester produced the highest annual energy profit (48.22 ZAR/kWh or 3.45 USD/kWh). This infers the application of magnetite-nanoparticles and MFC on the AD of sewage sludge is very promising for biogas production. The digester with an external resistor of 500 Ω showed a high potential for use in bioelectrochemical biogas generation and contaminant removal for sewage sludge.

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“…This study aimed to develop an energy–water–food supply system capable of generating electricity, producing edible plants, and treating wastewater simultaneously, using wastewater as a renewable source of electrical energy and plant nutrients. In current practice, wastewater is being treated in wastewater treatment facilities that employ energy-consuming methods [ 1 , 2 , 3 ], which release CO 2 into the atmosphere. In recent years, wastewater (domestic, industrial, and agricultural) has been recognized as a renewable source of energy, freshwater, and nutrients because it primarily consists of water, energy-latent carbon compounds, and plant-growth nutrients [ 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Integrating Microbial Fuel Cell and Hydroponic Technologies Using a Ceramic Membrane Separator to Develop an Energy–Water–Food Supply System

Sato,

Apollon,

Luna-Maldonado

et al. 2023

Membranes

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In this study, a microbial fuel cell was integrated into a hydroponic system (MFC-Hyp) using a ceramic membrane as a separator. The MFC-Hyp is a passive system that allows the transport of nutrients from wastewater in the microbial fuel cell (MFC) to water in the hydroponic vessel (Hyp) through a ceramic membrane separator, with no external energy input. The performance of this system was examined using potato-process wastewater as a source of energy and nutrients (K, P, N) and garlic chives (Allium tuberosum) as a hydroponic plant. The results showed that based on dry weight, the leaves of Allium tuberosum grew 142% more in the MFC-Hyp than those of the plant in the Hyp without the MFC, in a 49-day run. The mass fluxes of K, P, and NO3−-N from the MFC to the Hyp through the ceramic membrane were 4.18 ± 0.70, 3.78 ± 1.90, and 2.04 ± 0.98 µg s−1m−2, respectively. It was apparent that the diffusion of nutrients from wastewater in the MFC enhanced the plant growth in the Hyp. The MFC-Hyp in the presence of A. tuberosum produced the maximum power density of 130.2 ± 45.4 mW m−2. The findings of this study suggest that the MFC-Hyp system has great potential to be a “carbon-neutral” technology that could be transformed into an important part of a diversified worldwide energy–water–food supply system.

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Microbial Fuel Cell for Energy Production, Nutrient Removal and Recovery from Wastewater: A Review

Cited by 34 publications

References 189 publications

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Anode Modification with Fe2O3 Affects the Anode Microbiome and Improves Energy Generation in Microbial Fuel Cells Powered by Wastewater

Application of Magnetite-Nanoparticles and Microbial Fuel Cell on Anaerobic Digestion: Influence of External Resistance

Integrating Microbial Fuel Cell and Hydroponic Technologies Using a Ceramic Membrane Separator to Develop an Energy–Water–Food Supply System

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