Bioelectricity generation using microalgal biomass as electron donor in a bio-anode microbial fuel cell

Ndayisenga, Fabrice; Yu, Zhisen; Yu, Yang; Lay, Chyi-How; Zhou, Dandan

doi:10.1016/j.biortech.2018.09.052

Cited by 61 publications

(12 citation statements)

References 46 publications

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“…43 In a previous study, Cui et al 43 used algae biomass as a substrate in a cubical dual-chamber MFC reactor and produced an MPD of 1926 ± 21.4 mW/m. 2 In another study, Ndayisenga et al 44 investigated the bioelectricity generation capacity of a double-chamber MFC using Chlorella regular biomass as an anolyte and reported a high MPD value of 1.07 W/m. 2 Our electricity generation results demonstrated that the high organic and nutrient concentration of mixed algae biomass is a potential feedstock source for high power generation.…”

Section: Voltage and Power Generation From Smfcmentioning

confidence: 99%

Enhanced power generation from algal biomass using multi‐anode membrane‐less sediment microbial fuel cell

2020

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Summary In this study, a multi‐anode sediment microbial fuel cell (SMFC) was used to investigate the electricity generation capacity of mixed‐culture algae biomass. A multi‐anode reactor configuration was used, which had tin‐coated copper mesh (TCCM) anode and platinum‐coated titanium mesh cathode. The SMFC produced a high‐power density of 2965 mW/m2, which is the highest power density reported in SMFC studies so far. The microscopic observations and gene profiling analysis confirmed that the biocompatibility of TCCM favors the bacterial adhesion and enrichment of electroactive bacterial groups (Gammaproteobacteria, Deltaproteobacteria, and Alphaproteobacteria). Our findings indicated that algae biomass could be used as an appropriate feedstock in SMFC to significantly improve electricity generation.

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Section: Voltage and Power Generation From Smfcmentioning

confidence: 99%

Enhanced power generation from algal biomass using multi‐anode membrane‐less sediment microbial fuel cell

2020

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“…Truepera with a sulfur-compound metabolic capability increased by 9.4% . Therefore, the enrichment of VOSC degradation bacteria in the MFC induced the higher pollutant-removal performance, and the electricity-generation ability of MFCs as presented in Figure was attributed to the higher abundance of Stenotrophomonas and Pseudomonas. , Besides, Candidatus Microthrix can convert complex carbon compounds to simple molecules and scavenge oxygen to overcome their inhibitions on electricity production . Several genera, such as Rhodanobacter, Massilia, and Leadbetterella, almost disappeared in the developed MFC system, indicating that these bacteria could not adapt to high concentrations of DMS.…”

Section: Results and Discussionmentioning

confidence: 98%

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

Feng

et al. 2021

Energy Fuels

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Dimethyl sulfide (DMS) emitted from the petrochemical industry is a typical volatile organic sulfur compound (VOSC) with poor solubility and odorous smell. A microbial fuel cell (MFC) is regarded as an appreciative method for simultaneous DMS degradation and electricity generation. In this work, for the first time, we developed an MFC system for DMS treatment. With an initial concentration of 95 mg L −1 , the DMS removal efficiency at the closed-circuit state was achieved as high as 89.5% within 40 h, which was 1.21 times higher than that at the open-circuit state. The maximum power density and current density were 0.237 mW m −2 and 2.644 mA m −2 , respectively. The dominant electrogenic bacteria in the MFC were Stenotrophomonas, Pseudomonas, and Candidatus Microthrix, and the DMS degraders included Thiobacillus, Truepera, and Candidatus Microthrix. Direct extracellular electron transfer was involved in the bioanode for DMS degradation according to the CV curves. Moreover, to overcome the toxicity of high-concentration DMS on microorganisms and enhance power generation, sodium acetate (NaAc) was added as a co-substrate, resulting in 52.5% increase in DMS degradation activity and a 16.5 times higher maximum output voltage. Overall, these findings may offer basic information for bioelectrochemical degradation of DMS and facilitate the application of MFCs in waste gas treatment.

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“…The high current generation can be linked with a high flux of Cr(VI) species on the surface of FeS@rGO containing cathode [3]. Thus, fast Cr(VI) reduction will be achieved for modified cathode by second intercept, respectively at the real impedance axis [32]. The ohmic resistance for MFC-FeS@rGO (3.12 Ω) was slightly lower than the MFC-FeS (4.26 Ω) and MFC-blank (4.9 Ω) ( Fig.…”

Section: Fes@rgo Nanocomposite Synthesis and Characterizationmentioning

confidence: 99%

FeS@rGO nanocomposites as electrocatalysts for enhanced chromium removal and clean energy generation by microbial fuel cell

Ali

Wang

Waseem³

et al. 2020

Chemical Engineering Journal

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Bioelectrochemical removal of Cr(VI) and consequent renewable energy generation from wastewater is a promising technology. However, slow reaction kinetics, expensive catalysts, and hydrophobic binders remain a significant challenge for commercialization of this emerging technology. In the present study, for the first time graphite felt modified with FeS@rGO nanocomposites were used as a cathode in a dual chamber microbial fuel cell (MFC) for concurrent Cr(VI) reduction and power generation. The MFC with FeS@rGO nanocomposites (MFC-FeS@rGO) exhibited 100% Cr(VI) removal efficiency for the concentration of 15 mg/L and also acquired high reduction rate of 1.43 mg/L/h, which was approximately 4.6 times higher than MFC-blank. MFC-FeS@rGO delivered the maximum power density of 90.4 mW/m 2, and it was 150% high as that of MFC-blank (36 mW/m 2). High cathodic coulombic efficiency for MFC-FeS@rGO (61%) indicated the substantial amount of charge produced by exoelectrogens was consumed for Cr(VI) reduction. Overall improved electrochemical performance of MFC-FeS@rGO was attributed to the high conductivity, low internal resistance, and better reaction kinetics of FeS@rGO nanocomposites. This study has demonstrated the highest reduction rate and high power production compared with previous studies which have used very high concentration of Cr(VI). Hence, it is expected that current findings will help to scale up the simultaneous Cr(VI) reduction and power generation from real wastewater.

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Bioelectricity generation using microalgal biomass as electron donor in a bio-anode microbial fuel cell

Cited by 61 publications

References 46 publications

Enhanced power generation from algal biomass using multi‐anode membrane‐less sediment microbial fuel cell

Enhanced power generation from algal biomass using multi‐anode membrane‐less sediment microbial fuel cell

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

FeS@rGO nanocomposites as electrocatalysts for enhanced chromium removal and clean energy generation by microbial fuel cell

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