Bioelectricity production and treatment of Abattoir wastewater in a ferricyanide catholyte H-type microbial fuel cell
Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Society for Advancement of Sciences
Abstract
Dual-chamber Microbial Fuel Cells (MFCs) were constructed using non-reactive polyacrylic containers of 1100ml with a working volume of 1000ml. 1000ml of the abattoir wastewater was fed into the anode chamber while equal volume 100mM Potassium Ferricyanide solution was fed into the cathode chamber. An Agar-salt Bridge (2% Agar and 1% NaCl) with dimension 10cm×3cm (length and radius) served as Proton Exchange Membrane. Rod-shaped carbon electrodes of length and diameter 12 cm × 1.2 cm were used. The Open circuit voltage, current, power density and physicochemical parameters were monitored. An initial Open circuit voltage of 459 mV, Current of 0.22 mA, and Power density of 22.10mW/m2 were recorded, which increased to give maximum Open Circuit Voltages of 736 mV, Current of 0.46mA, and Power density of 66.43mW/m2.The results also shows a 56.09%, 92.31%, 56.27%, 89.92%, 73.29% and 75.46% decrease for Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Organic Carbon, Total Soluble solids (TSS), Total Dissolved Solids (TDS), Nitrate, and Nitrate-Nitrogen respectively, while a -3.58%, -3.51%, -4.21%, -228.76%, -226.07% and -226.16% increase was observed for Phosphates, Phosphorus, Orthophosphates, Ammonia, Ammonium Nitrogen and Ammonium respectively. The bacterial isolates identified were Bacillus species, Streptococcus species, Escherichia coli and Staphylococcus aureus.
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Citation
Egbadon, E. O., Nweke, C. O., Akujobi, C. O., Braide, W., Akaluka, C. K. & Adeleye, S. A. (2016). Bioelectricity production and treatment of Abattoir wastewater in a ferricyanide catholyte H-type microbial fuel cell. Journal of Biological Chemical Research, 33(1), 40 - 51