Dose of H₂O₂ (mg/L)

Non-impregnated GAC

HCl-treated GAC

HNO₃-treated GAC

HCl+HNO₃?treated GAC

3.2

49.37 ± 1.70

52.13 ± 1.95

50.82 ± 1.67

91.06 ± 2.82

89.83 ± 3.38

90.51 ± 3.04

85.32 ± 2.95

80.27 ± 2.72

84.48 ± 2.70

82.77 ± 3.78

79.18 ± 3.06

81.92 ± 3.23

6.4

56.4 ± 1.80

59.4 ± 2.06

57.6 ± 2.28

93.22 ± 2.78

95.16 ± 3.52

89.71 ± 2.85

87.92 ± 2.94

89.11 ± 3.53

86.73 ± 3.71

85.84 ± 3.67

86.55 ± 4.02

83.23 ± 2.77

9.6

58.8 ± 2.03

60.4 ± 2.25

54.2 ± 1.99

92.36 ± 2.91

93.25 ± 3.61

91.34 ± 2.71

86.29 ± 3.83

88.73 ± 3.32

82.46 ± 2.58

85.37 ± 3.21

87.62 ± 2.89

84.91 ± 3.70