Dose of H2O2 (mg/L)

Non-impregnated GAC

HCl-treated GAC

HNO3-treated GAC

HCl+HNO3?treated GAC

3.2

61.63 ± 1.79

63.25 ± 2.15

59.62 ± 2.92

85.3 ± 3.04

83.5 ± 2.86

86.1 ± 2.79

82.17 ± 2.84

81.61 ± 3.23

79.89 ± 2.62

80.22 ± 3.31

79.34 ± 2.51

77.84 ± 2.72

6.4

70.13 ± 3.58

69.32 ± 2.56

69.51 ± 2.71

89.22 ± 3.48

90.43 ± 2.86

89.61 ± 3.75

86.71 ± 3.81

85.68 ± 3.21

84.39 ± 3.17

81.82 ± 2.67

82.57 ± 2.71

80.59 ± 3.16

9.6

68.33 ± 2.90

66.82 ± 3.05

64.36 ± 2.57

89.45 ± 4.08

89.90 ± 3.04

88.72 ± 2.64

86.24 ± 3.58

84.64 ± 3.25

86.76 ± 2.95

80.89 ± 2.39

81.56 ± 2.16

79.67 ± 2.80