0.5 mg/L H2O2 Time (min) 1.0 mg/L H2O2 Time (min) % Surfactants Reduction % COD Reduction % Surfactants Reduction % COD Reduction 0 0.00 0.00 0 0.00 0.00 30 3.15 ± 0.10 1.45 ± 0.09 30 6.75 ± 0.08 1.76 ± 0.12 60 6.52 ± 0.05 2.05 ± 0.12 60 15.36 ± 0.12 3.11 ± 0.09 90 8.50 ± 0.11 2.65 ± 0.05 90 21.01 ± 0.07 5.21 ± 0.10 120 10.34 ± 0.07 3.25 ± 0.07 120 34.48 ± 0.13 7.84 ± 0.09 150 12.01 ± 0.12 4.00 ± 0.11 150 38.67 ± 0.06 7.98 ± 0.05 180 13.89 ± 0.04 5.94 ± 0.06 180 42.50 ± 0.13 6.51 ± 0.07 210 10.23 ± 0.11 5.44 ± 0.11 210 31.89 ± 0.06 -3.23 ± 0.08 240 8.95 ± 0.09 5.16 ± 0.09 240 20.68 ± 0.06 -13.42 ± 0.12

Table 2: Effect of time on the reduction of COD and surfactants concentration from waste water using 0.5 and 1.0 g/L of H2O2.