The effect of wastewater concentration on COD removal of
domestic and dairy wastewater in MFC-1 and MFC-2 are
shown in figure 3 to figure 6. Experimental data indicated that
COD removal efficiency was decreased with the decrease of
wastewater concentration from 100% to 75% and 50% in both
MFC-1 and MFC-2. The COD removal efficiency using
domestic wastewater at 100%, 75% and 50% wastewater
concentrations were 86.68%, 76.3% and 64.5% respectively in