|About this Abstract
||Part C-2: Gordon Ritcey Symposium: Advances in Hydrometallurgical Solution Purification Separations, sponsored by Purolite
||Cadmium and Nickel Adsorption Study using Biosorbent
||Peijia Lin, Jaeheon Lee
|On-Site Speaker (Planned)
Wheat straw was chemically modified by alkaline treatment followed by succinylation and sodium carbonate treatment for the use of cadmium and nickel adsorbent. The adsorption efficiency was calculated in different conditions. The experimental parameters were adsorbent dosage, degree of succinylation, initial metal concentrations, and solution pH. The biosorbent was analyzed by FTIR (Fourier-Transform Infrared Spectroscopry) to investigate the changes of surface functional group. The maximum adsorption percentage of cadmium (>99%) was achieved using 5 g/l adsorbent with 50 mg/l initial cadmium concentration. The competition between the cadmium and nickel adsorption was investigated showing 97.8% cadmium recovery and 88.9% nickel recovery from binary solution containing both nickel and cadmium. Cadmium affected nickel adsorption more than nickel did on cadmium. The adsorption kinetic study showed that the reaction was pseudo-second order kinetics and the adsorption isotherm was well fit by Langmuir adsorption model.
||Planned: At-meeting proceedings