Membrane-less microbial fuel cell: Monte Carlo simulation and sensitivity analysis for COD removal in dewatered sludge

Dewatered sludge is redundantly found in a municipal wastewater treatment plant, and the amount increasing every year. However, dewatered could be used to power membrane-less microbial fuel cell (ML-MFC), which operated electrochemically via incorporation of electricity producing micro-organisms. The normally acts as an electron donating substrate. Results showed that ML-MFC produced voltage at about 927.7 ± 11.24 mV whereby 178.7 mg/L chemical oxygen demand (COD) was removed after 240 h incubation period. Nonetheless, COD removal values obtained from might differ time study repeated because availability maximum biomass electrogenic bacteria (EB) will different due heterogeneous properties EB performance inside ML-MFC. parametric uncertainty analysis then assessed using Monte Carlo simulation (stochastic variable) determine distribution probability affected by fluctuation variation kinetic model parameters. From 100 000 samples tested (simulation), results show substrate (S) value ranged 172.58 185.02 mg/L. impact each parameter on evaluated sensitivity analysis. It significantly relied growth present.