Table 2 Removal efficiency of membranes for heavy metals at different concentrations.

From: Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution

Metals

Membrane

Removal efficiency for each metal at different concentrations (%)

Removal efficiency (%) of prepared membrane from FCB at a concentration of 30 mg/L (containing 10 mg/L of Pb and 10 mg/L of Cd and 10 mg/L of Cr)

10 mg/L

20 mg/L

30 mg/L

50 mg/L

Pb

UCF

89.3

87.9

86.4

84.7

84.1

FCB

85.2

84.3

83.1

82.2

Cd

UCF

87.6

87.1

86.4

83.2

83.9

FCB

85.3

84.5

83.3

80.7

Cr

UCF

91.3

90.1

89.2

88.1

86.5

FCB

88.4

87.1

85.9

85.1