Small boreholes embedded in the sediment layers make big difference in performance of sediment microbial fuel cells: Bioelectricity generation and microbial community

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Effect of sediment microbial fuel cell stacks on 9 V/ 12 V DC power supply

Jeetendra Prasad et al.

Summary: The study optimized the connection of SMFC modules to improve the efficiency of renewable energy generation, solved the voltage reversal problem, and achieved the power supply of practical electronic devices.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Review Chemistry, Physical

In-situ hydrogen peroxide synthesis with environmental applications in bioelectrochemical systems: A state-of-the-art review

Qian Zhao et al.

Summary: Hydrogen peroxide biosynthesis technology shows promise in environmental remediation and water treatment, but challenges remain for scaling up its applications.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Elevated Cr(VI) reduction in a biocathode microbial fuel cell without acclimatization inversion based on strain Corynebacterium vitaeruminis LZU47-1

Shuai Zhao et al.

Summary: A biocathode MFC based on Corynebacterium vitaeruminis LZU47-1 was constructed for hexavalent chromium reduction without acclimatization inversion, resulting in significantly increased power generation and chromium removal efficiency compared to conventional methods. This study provides a convenient and highly effective method for enhancing power output and Cr(VI) reduction in biocathode MFCs.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Simultaneous bioelectricity generation and pollutants removal of sediment microbial fuel cell combined with submerged macrophyte

Jia-Ying Xu et al.

Summary: This study constructed a submerged macrophyte sediment microbial fuel cell (SP-SMFC) system, and found that submerged plants have advantages in enhancing bioelectricity generation and pollutants removal, with the Ceratophyllum demersum L. group showing the best performance. The presence of plants was shown to enhance microbial activities, increase enzyme activities, and improve bioelectricity generation and pollutants removal efficiency.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Recent insights into microalgae-assisted microbial fuel cells for generating sustainable bioelectricity

Mostafa E. Elshobary et al.

Summary: The usage of microbial fuel cells (MFC) for power generation from renewable biomass sources and the efficient utilization of chemical energy stored in microalgae biomass for the production of biofuels and other bioproducts have attracted significant attention. Incorporating microalgae into MFC can enhance efficiency and provide a cost-effective renewable approach for electricity generation. While microalgae-assisted MFCs (MA-MFCs) show promise in sustainability, further research is needed to optimize performance and achieve large-scale application.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Biophysics

Scale-up and control the voltage of sediment microbial fuel cell for charging a cell phone

Jeetendra Prasad et al.

Summary: In this study, a PMS system based on SMFC was developed to charge a cell phone battery by increasing voltage through series or parallel connection and using a super capacitor to prevent voltage reversal. It was found that only module-5 of the stack SMFCs could provide power to the PMS for extended periods.

BIOSENSORS & BIOELECTRONICS (2021)

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Article Chemistry, Physical

Bioelectricity generation and remediation of contaminated intertidal zone of Yamaguchi Bay, Japan

M. Azizul Moqsud et al.

Summary: This study experimented with sediment microbial fuel cells (SMFCs) to generate bioelectricity for sensors. Factors such as microbes and grain size distribution were found to impact voltage generation, with the use of dual anodes showing nearly double the voltage. SMFCs in the field exhibited higher voltage generation compared to laboratory settings, and demonstrated a positive correlation between voltage generation and AVS reduction.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Review Environmental Sciences

Substrate salinity: A critical factor regulating the performance of microbial fuel cells, a review

Fei Guo et al.

Summary: Substrate salinity plays a critical role in the performance of microbial fuel cells (MFCs), with moderate increases improving performance but excessive salinity causing negative effects. Different MFCs have optimal salinity ranges, and strategies for improving salt tolerance in electroactive bacteria can enhance performance. In addition to ohmic resistance and bacterial activity, substrate salinity also affects membrane resistance and catalyst performance, all of which contribute to the overall MFC performance.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Engineering, Environmental

Microbial electrolysis cell produced biogas as sustainable electron donor for microbial chromate reduction

Chao He et al.

Summary: Microbial electrolysis cell (MEC) produced biogas can effectively promote Cr(VI) detoxification, offering a promising route for sustainable bioremediation of Cr(VI)-polluted groundwater.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

Microbial electrochemical sensor for water biotoxicity monitoring

Na Chu et al.

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CHEMICAL ENGINEERING JOURNAL (2021)

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Article Thermodynamics

A fluid dynamics perspective on the flow dependent performance of honey comb microbial fuel cells

Thangavel Sangeetha et al.

Summary: This study investigates flow parameter and performance evaluation of honey comb microbial fuel cells (HCMFCs) with innovative flow straighteners. Results demonstrate that the reactor with a diameter of 0.7 cm performs the best, achieving the highest voltage generation, current density, and power density among the tested diameters.

ENERGY (2021)

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Article Environmental Sciences

Linking microbial mechanism with bioelectricity production in sludge matrix-fed microbial fuel cells: Freezing/thawing liquid versus fermentation liquor

Xiaodong Xin et al.

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SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Review Environmental Sciences

Microorganisms in sediment microbial fuel cells: Ecological niche, microbial response, and environmental function

Xunan Yang et al.

Summary: Sediment microbial fuel cells (SMFCs) are devices that harvest electrical energy from sediments rich in organic matter. The microorganisms play a crucial role in SMFCs, making them important for research on their functions and applications.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Engineering, Environmental

A newly discovered function of nitrate reductase in chemoautotrophic vanadate transformation by natural mackinawite in aquifer

Chao He et al.

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WATER RESEARCH (2021)

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Article Agricultural Engineering

Improved stability of up-flow anaerobic sludge blanket reactor treating starch wastewater by pre-acidification: Impact on microbial community and metabolic dynamics

Jiang Wu et al.

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Article Engineering, Environmental

Simultaneous enhancement of treatment performance and energy recovery using pyrite as anodic filling material in constructed wetland coupled with microbial fuel cells

Jun Yan et al.

Summary: The study developed an alternative CW-MFC configuration using conductive pyrite as an anodic filling material, which significantly improved wastewater treatment performance. The use of pyrite extended the electroactive scope of the anode, increasing electricity output and promoting an iron redox cycling in the system.

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Burial depth of anode affected the bacterial community structure of sediment microbial fuel cells

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Carbon nanomaterial-modified graphite felt as an anode enhanced the power production and polycyclic aromatic hydrocarbon removal in sediment microbial fuel cells

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MnO2/tourmaline composites as efficient cathodic catalysts enhance bioelectroremediation of contaminated river sediment and shape biofilm microbiomes in sediment microbial fuel cells

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Graphene modified polyacrylonitrile fiber as high-performance cathode for marine sediment microbial fuel cells

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Enhanced performance of sediment microbial fuel cell by immobilization of Shewanella oneidensis MR-1 on an anode surface

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Small boreholes embedded in the sediment layers make big difference in performance of sediment microbial fuel cells: Bioelectricity generation and microbial community

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