Kinetic and thermodynamic studies for cesium removal from low-level liquid radioactive waste using impregnated polymeric material

被引：31

作者：

Attallah M.F. ^{[1
]}

Borai E.H. ^{[1
]}

Allan K.F. ^{[1
]}

机构：

[1] Hot Laboratories and Waste Management Center, Atomic Energy Authority, Abu Zaabal, Cairo

来源：

Radiochemistry | 2009年 / 51卷 / 6期

关键词：

Cesium-137; Kinetics; Liquid radioactive wastes; Polymers; Sorption; Thermodynamics;

D O I：

10.1134/S1066362209060113

中图分类号：

学科分类号：

摘要：

A novel polymeric impregnated material was prepared by loading 4,4′(5′)di-t-butylbenzo-18-crown-6 (DtBB18C6) onto poly(acrylamide-acrylic acid-acrylonitrile)-N,N′-methylenediacrylamide [P(AM-AA-AN)-DAM]. The sorption of 137Cs onto P(AM-AA-AN)-DAM/DtBB18C6 was studied using batch equilibrium technique with respect to the pH, contact time, and temperature. The applicability to treatment of low-level liquid radioactive waste was examined. The free energy (ΔG 0), enthalpy (ΔH 0), and entropy (ΔS 0) of the sorption were calculated. These parameters showed that the sorption of 137Cs onto P(AM-AA-AN)-DAM/DtBB18C6 was spontaneous and endothermic in nature. The Lagergren first-order, pseudo-second-order, and homogeneous particle diffusion models were tested kinetically to describe the reaction mechanism. The experimental data were fitted well by the pseudo-second-order kinetic model. © 2009 Pleiades Publishing, Ltd.

引用

页码：622 / 627

页数：5

共 27 条

[1]

Kotvitskyy A.G., Maltseva T.V., Belyakov V.N., Sep. Purif. Technol., 41, (2005)

[2]

Cesium Removal Using Crystalline Silicotitanate, (1999)

[3]

356, (1993)

[4]

Tranter T.J., Herbst R.S., Todd T.A., Et al., Adv. Environ. Res., 6, (2002)

[5]

Zhang A., Kuraoka E., Kumagai M., J. Chromatogr. A, 1157, (2007)

[6]

Mohapatra P.K., Ansari S.A., Sarkar A., Et al., Anal. Chim. Acta, 571, (2006)

[7]

Engel N.L., Bonnesen P.V., Tomkins B.A., Et al., Solvent Extr. Ion Exch., 22, 4, (2004)

[8]

Ansari S.A., Pathak P.N., Husain M., Et al., Talanta, 68, (2006)

[9]

Shaibu B.S., Reddy M.L.P., Bhattacharyya A., Manchanda V.K., J. Magn. Magn. Mater., 301, (2006)

[10]

Zhang A., Kuraoka E., Kumagai M., Sep. Purif. Technol., 50, (2006)

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