The effectiveness of ozone and integrated ozone catalyzed processes with iron plates on industrial wastewater
treatment was evaluated. Both processes were tested at different pH values of the industrial wastewater. Ozonation, under optimal
conditions of pH 7 and treatment time of 60 min, reduced the chemical oxygen demand (COD) by 45%, color by 82%, and the
turbidity by 55%. The addition of iron plates inside the reactor greatly improved the reduction of COD (80%), color (90%) and
turbidity (99%). Thus, it was concluded that the ozonation process catalyzed with iron plates noticeably improves wastewater
quality. Additional advantages of the process are that there is no sludge generation and it occurs readily at pH 7.