Impact of Salt Concentrations on Electricity Generation using Hostel Sludge Based Duel Chambered Microbial Fuel Cell

Soomro, Shaheen Aziz

doi:10.4172/2155-9821.1000252

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…Variables controlled in experimental and control groups included specifications of the salt bridge (alternative to proton exchange membrane), the anode and cathode volume, the electrodes, and light exposure. The salt bridge consisted of a 10 cm long ¾" diameter PVC pipe (~28.5 mL) with 1 M KCl (Soomro, 2015) and 100 g/L agar (Sridevi et al, 2020). All cells were run in the same location with same sun exposure at a temperature of approximately 21˚C.…”

Section: Specifications Of Control and Experimental Mfcs And Controll...mentioning

confidence: 99%

Nannochloropsis Algae Biocathodes Improve Cathodic Energy Losses in Two-Chamber Microbial Fuel Cells

Adibnia

George

2022

Preprint

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Microbial fuel cells (MFCs) are currently being researched as alternative energy sources with promising applications in wastewater treatment. However, in two-chamber designs, cathodic oxygen reduction is slow and limits MFC voltage. Biocathodes, cathodes containing microorganisms, show great promise for improving MFC performance. This study investigated how the microalgae Nannochloropsis affects cathodic oxygen reduction via a thermodynamic analysis of energy losses. Voltage, cathode pH, and cathode pO2 (partial pressure of oxygen) were measured in experimental MFCs containing Nannochloropsis biocathodes and compared to controls containing distilled water or abiotic algae media catahodes. Isolated Nanochloropsis cultures were also assayed. Under open circuit conditions, cathodic energy losses in experimental MFCs were 15% (p = 0.038597) and 19% (p = 0.042435) lower than distilled water and algae media controls, respectively. Experimental MFCs produced 73% higher power at 37% higher current density than distilled water MFCs. While the pH and pO2 of isolated Nannochloropsis cultures increased linearly each day, these measurements were constant in experimental MFC cathodes. This result suggests that participation in oxygen reduction reactions induces a change in Nannochloropsis metabolism, leading to reduced oxygen production and limiting pH changes. Taken together, this work presents a promising new type of two-chambered MFC with lower energy losses and greater power production that can also maintain a constant cathode pH and reveals a new behavior of Nannochloropsis algae in response to oxygen reduction reactions in such MFCs.

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Section: Specifications Of Control and Experimental Mfcs And Controll...mentioning

confidence: 99%

Nannochloropsis Algae Biocathodes Improve Cathodic Energy Losses in Two-Chamber Microbial Fuel Cells

Adibnia

George

2022

Preprint

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“…This is mainly due to researchers being using different operating conditions (e.g. surface area and types of electrodes), different inoculated microorganisms, and different designs and volume of reactors (Parkash et al, 2015).…”

Section: Comparative Study For Power Output From Mfcs With Different mentioning

confidence: 99%

A sustainable bioelectricity production from wastewater

El-Badan¹,

Khaled²,

Ghanem³

2019

Egypt. J. of Aquatic Biolo. and Fish.

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Parametric Effect of Distillery Effluent as Substrate in Microbial Fuel Cell for Power Generation

Siddique¹,

Khan²,

Jatoi³

et al. 2018

Journal of Applied and Emerging Sciences

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Depletion of fossil fuel increased direction towards renewalable energy sources. Microbial Fuel Cell substitute technology for converting waste water from industry effluent as well meet the requirement for environmental problem. Study was made to treat the distillery effluent as substrate in mfc for bio-energy considering effect of oxygen flow rate, pH and substrate concentration. Different organic load were used in mfc for power generation and different oxygen flowrate for oxidation of proton coming from anode chamber effect of pH also keep consideration regading microbial growth of saccharomyces as a biocatalyst. The maximum power generation were observed at optimized condition of oxygen flow rate 250rpm, pH6 and substrate 60% (in form of organic load) at 0.9114 mW and current density 82.48 mA/m 2 .

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Impact of Salt Concentrations on Electricity Generation using Hostel Sludge Based Duel Chambered Microbial Fuel Cell

Cited by 5 publications

References 34 publications

Nannochloropsis Algae Biocathodes Improve Cathodic Energy Losses in Two-Chamber Microbial Fuel Cells

Nannochloropsis Algae Biocathodes Improve Cathodic Energy Losses in Two-Chamber Microbial Fuel Cells

A sustainable bioelectricity production from wastewater

Parametric Effect of Distillery Effluent as Substrate in Microbial Fuel Cell for Power Generation

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