When experiment was carried out by further increasing the pH
to 7.0 with varying voltages 8V, 10V and 12V, the maximum
COD removal efficiencies were found to be 70%, 82.5% and
87.5% respectively for a duration of 4 hours (Fig 6) and
remained unchanged for 5 hours of electrolysis time.
Similarly, the maximum turbidity removal efficiencies
obtained were 72.4%, 80.09% and 88.76% for 4 hours of ET
(Fig 7).