Abstract :
The increasing demand for electrical energy in Indonesia has triggered various
researches towards innovative technologies that are more effective, efficient and
environmentally friendly to produce electrical energy. One alternative technology
that can be developed is Microbial Fuel Cell (MFC) based on bioelectrochemical
principles by utilizing microorganisms to break down substrates to produce
electrical energy. This research is focused on the utilization of organic waste as a
substrate in a singlel-chamber MFC system equipped with 19 electrodes. The
variety of substrates includes tomato fruit waste, and mixed waste which includes
various types of fruits and vegetables. Variations in substrate incubation time were
also carried out, namely for one to three days. The highest value of electricity
production was produced by mixed organic waste which was incubated for 3 days
with a voltage of 6.2 V while tomato waste with the same incubation time produced
the highest voltage of 6.1 V. Further research on the use of organic waste as a
substrate in the MFC system can reduce the operating costs of the MFC system, as
well as make MFC an economical, environmentally friendly and sustainable
electricity generating technology.