Parameter

Conductivity
Rejection
 (%)

Lead Rejection
(%)

TOC Rejection
(%)

DI water

77.2 ± 1.2

-

-

20 mg/L Pb

77.3 ± 1.3

89.1 ± 1.1

-

10 mg/L NOM

78.6 ± 1.3

-

96.0 ± 0.8

20 mg/L Pb+ 10 mg/L NOM

82.6 ± 1.3

93.3 ± 1.1

98.3 ± 0.4

Table 1: Removal efficiency of nanofiltration membrane.