Enhanced bioelectricity generation by novel biosurfactant producing bacteria in microbial fuel cells

In this work, Stacked MFC was prepared by using thermophilic microbes. The fuel cell was tested in three groups. The first group of stacked MFC is dealing with one Brevibacillus species 1 (biosurfactant producing bacteria) and Brevibacillus species 2 (biosurfactant producing bacteria) cultured in Nutrient broth medium. The second group of stacked MFCs is dealing with one Brevibacillus species 1 (biosurfactant producing bacteria) and Brevibacillus species 2 (biosurfactant producing bacteria) cultured Mckeen medium. The third group of stacked MFCs is dealing with Brevibacillus species 1 (biosurfactant producing bacteria) and Brevibacillus species 2 (biosurfactant producing bacteria) cultured in NIT Raipur canteen wastewater. The performance of MFC in terms of voltage and current generation was continuously evaluated for 15 days and biosurfactant production was also analyzed. Biofilm was investigated by SEM (Scanning Electron Microscope) analysis. Both the strain used in this study is biosurfactant-producing bacteria and ability to produce electricity. Unknown stain showing a good result as compared to Brevibacillus. The maximum power density was observed with strain 1 in McKeen media i.e. 64.08 mW cm(-2). (C) 2021 Elsevier B.V. All rights reserved.