| 초록 |
This work is focused on developing a fast kinetic sorbent of epichlorohydrin cross-linked carboxymethyl cellulose fiber (ECMCF) using a simple method for Cd(II) removal. The commercial resins of Amberlite IRC 86 (A86) and Amberlite IR 120H (A120H) were selected as comparative sorbents. Cd(II) sorptions were found to better fit the Langmuir model, and the b values of ECMCF, A86 and A120H were 1.67, 0.66 and 0.82, which indicated that ECMCF has the highest affinity towards Cd(II). The kinetics results showed that the ECMCF achieved equilibrium instantaneously within 2 min, much faster than about 5 h for the A86 and 2 h for the A120H. Finally, the ECMCF provided much better breakthrough curves than A86 and A120H, which further confirmed the faster kinetics of ECMCF. |
