The Effect of Gram Negative Bacteria Addition of Tempe Wastewater to Alternative Electricity Production in Tubular Microbial Fuel Cell

Mariana Mariana, Tania Surya Utami, Rita Arbianti


Bacteria have long been known could produce electricity. MFC (Microbial Fuel Cell) is one of the technologies that adapt that working principle. MFC potential as a producer of renewable alternative electrical energy through the conversion of waste into electrical energy. However, this technology still produces electricity that has not reached the minimum voltage target. This research is focused on reviewing the effect of the addition of gram negative bacteria contained in tempe wastewater as well as the optimal volume additions gram using a tubular single chamber membranless reactor. The result showed that the addition of gram negative bacteria can increase the production of electric voltage on the system MFC. Gram negative bacteria dominate tempe wastewater and better able to transfer electrons. The voltage increases with increasing number of bacteria up to a point that causes the electron transfer decreases. Addition of gram-negative bacteria in 1 mL provide the most optimal results that can improve the electrical results reached 16.50 mV or 92.14% against the initial experiment with the average voltage of 17.91 mV. That optimum addition also give good results on the use of tempe industry wastewater, with maximum electrical voltage and power density of 8.90 mV and 0.02 mW/m2.

Keywords—electricity; gram negative bacteria; microbial fuel cell; tubular single chamber membranless; tempe wastewater

Full Text:



  • There are currently no refbacks.