PRODUCTION OF BIOELECTRICITY THROUGH MICROBIAL FUEL CELL

Abstract

Waste generated by both agro based industries and domestic units have high nutrient contents to support microbial growth, these wastes are indiscriminately dumped and constitutes environmental and health hazards. Some of these wastes can be used to grow some bacterial species in microbial fuel cell to generate bioelectricity. The Microbial fuel cell is a device where the bacteria can grow on one electrode, they breakdown organic matter and release electrons from it. The bacteria can do this by keeping them separate from the oxygen, and when they release those electrons it creates a potential between the electrodes of about half a volt and voltage times current is power, and that is how power is generated from it. The waste materials used in this work are banana peels. Bacterial isolates that are used from the sewage and hay soil all within Gandhigram institute, Gandhigram. Microscopic characterization of the isolates by Gram reaction revealed the Gram negative and Gram positive and Biochemical test showed that the three isolated organisms were Escherichia sp., Pseudomonas sp, Bacillus sp. Microbial fuel cell were fabricated with a two plastic bottles as anode and cathode chamber. The electrode used were Aluminium mesh. A 3.75% sodium chloride, 2.2% agar salt bridge connected the chambers. The organism and banana peel as biocatalyst. Result that was monitored showed the maximum of 86mV at 24 hours reading respectively

Key findings

• ▸Microscopic characterization of the isolates by Gram reaction revealed the Gram negative and Gram positive and Biochemical test showed that the three isolated organisms were Escherichia sp.
• ▸75% sodium chloride, 2.
• ▸2% agar salt bridge connected the chambers.

Keywords

Identifiers

DOI

10.36106/paripex/2011743

Journal

PARIPEX INDIAN JOURNAL OF RESEARCH

Year

2021