Anandita, Nadira
(2020)
Optimization Of Power From Food Waste Using
Membrane-less Microbial Fuel Cell.
Project Report.
Pusat Pengajian Teknologi Industri.
(Submitted)
Abstract
Fossil fuels have supported the industrialization and economic growth of countries
during the past centuries and it is clear that they cannot indefinitely sustain in a longer time. In
this study, Microbial Fuel cell (MFC) had potential solution to generate electricity power and
at the same time could reduce the abundant of food waste (1.64 kg/daily, around 8 tonnes/year)
which dumped in the landfill. The MFC operated electrochemically incorporate electrogenic
bacteria (EB) acted as a biocatalyst in order to produce electricity. The performance of the
MFC using food waste is evaluated using one-factor-at-a-time (OFAT) method. the
optimization performance of the MFC using food waste was evaluated using method of one
factor at one time (OFAT) and it was focused to pH for power generation. To determine the
generated electricity the polarization curve was used to evaluate the performance of MFC. The
chemical oxygen demand (COD) of food waste is studied. Optimization of pH condition in
MFC under certain pH ranging from 5 to 9, with other condition. Results shows that pH 8 is
the most suitable pH for Bacillus strain that was chosen for this experiment. With voltage
generated resulted 807 mV, highest biomass produced 35.46 mg/L, and power density
produced 373.3 mW/m2. In conclusion, pH environment condition in MFC will affect the
efficiency of performance for energy production. The increase in EB biomass also increased
the voltage in the ML-MFC, proving that EB biomass and voltage were associated with growth.
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