Fast Removal of Pb2+ from Aqueous Solution by Water Insoluble Konjac Glucomannan
Konjac glucomannan (KGM) was converted into water insoluble konjac glucomannan (WIKGM) by treating with NaOH through completely deacetylated reaction. Adsorption study was carried out for the adsorption of Pb2+ from aqueous solution using water insoluble konjac glucomannan. The influences of pH, contact time, temperature and initial Pb2+ concentration on the absorbent were studied. Results of kinetic data showed that the Pb2+ adsorption rate was fast and good correlation coefficients were obtained for the pseudo second-order kinetic model. The equilibrium process was described well by the Langmuir isotherm model with maximum adsorption capacity of 9.18 mg/g on WIKGM at 25℃.
Water insoluble konjac glucomannan Pb2+ Removal Kinetics Isotherm
Xuegang LUO Feng LIU Xiaoyan LIN
Department of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
国际会议
重庆
英文
65-68
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）