Fast Removal of Pb2+ from Aqueous Solution by Water Insoluble Konjac Glucomannan

Abstract:

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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°C.

Info:

Periodical:

Materials Science Forum (Volumes 610-613)

Main Theme:

Edited by:

Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou

Pages:

65-68

DOI:

10.4028/www.scientific.net/MSF.610-613.65

Citation:

X. G. Luo et al., "Fast Removal of Pb2+ from Aqueous Solution by Water Insoluble Konjac Glucomannan", Materials Science Forum, Vols. 610-613, pp. 65-68, 2009

Online since:

January 2009

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Price:

$35.00

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