Mirza Mohammad Faizal, Mohammad
(2020)
Effect Of Different Yeast Extract
Concentration In Membrane-less Microbial
Fuel Cell (Ml-mfc) For Electricity Generation
Using Food Waste As Substrate.
Project Report.
Pusat Pengajian Teknologi Industri.
(Submitted)
Abstract
Electricity is the basic energy in our daily life and there are about 14 % of global
population that did not get the access to electricity. Furthermore, 45 % of the main composition
of waste that produced daily is food waste. As a result, microbial fuel cell (MFC) become the
solution as it has the potential for food waste treatment and electricity power generation. This
study is being conducted to utilize the food waste that collected from E-Idaman, Kedah, to
generate energy while focusing the effect of different yeast extract level in a membrane-less
microbial fuel cell (ML-MFC). The electrogenic bacterial culture that acted as a catalyst for
electricity power generation was isolated from previous working ML-MFC. The proximate
analysis of food waste revealed that carbon has the highest composition with 30.02 %. From
the preliminary study that compared three different strains of electrogenic bacteria to
introduced in the ML-MFC, Bacillus subtillis sp. showed the highest specific growth rate, µ,
(0.117 gL-1/h) and doubling time, Td, (5.93 h). The performance of the ML-MFC was evaluated
using one-factor-at-a-time (OFAT) method. The highest voltage generation (820 mV) and
power density (9576.14 mW/m2) were obtained in 5 g/L yeast extract concentration ML-MFC.
The highest substrate degradation efficiency (12.3 %), COD removal (99 mg/L) and biomass
(44.32 mg/L) were in 15 g/L yeast extract concentration ML-MFC. It showed that the yeast
extract concentration and food waste affect the performance of ML-MFC.
Actions (login required)
 |
View Item |
