Adsorption behavior of U(VI)/Th(IV) by acid-leached red mud: A comparative study

Liu Zhirong; Xiong Huanjia; Zhou Shaoqi

Korean Journal of Chemical Engineering, Vol.30, No.5, 1091-1096, May, 2013

DOI10.1007/s11814-013-0027-6 Export Citation

Adsorption behavior of U(VI)/Th(IV) by acid-leached red mud: A comparative study

Liu Zhirong^{1, 2, †}, Xiong Huanjia², and Zhou Shaoqi^{3, 4}

¹Key Laboratory of Nuclear Resources and Environment, Ministry of Education, East China Institute of Technology, Jiangxi 330013, P. R. China
²Department of Applied Chemistry, East China Institute of Technology, Jiangxi 344000, P. R. China
³College of Environmental Science and Engineering, Key Laboratory of Environmental Protection and Eco-remediation of Guangdong Regular Higher Education Institutions, South China University of Technology, Guangdong 510006, P. R. China
⁴State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangdong 510641, P. R. China

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Acid-leached red mud, a type of inorganic-adsorptive by-product of bauxite Bayer process via acid leaching, was used for the removal of U(VI)/Th(IV) from aqueous solutions. Variables of the adsorption such as contact time, temperature, solution pH, initial concentration and dose of acid-leached red mud were investigated. The results indicated that the adsorption is strongly affected by dosage, the solution pH, contact time and initial concentration. The isothermal data were fitted with both Langmuir and Freundlich equations, but the data fitted the former better than the latter. A pseudo-first-order kinetic model and pseudo-second-order kinetic model were used to describe the kinetic data, but the pseudo-second-order kinetic model was the better. Thermodynamic parameters such as enthalpy (ΔH°), entropy (ΔS°) and free energy change (ΔG°) were calculated, and the negative ΔG° values of U(VI)/Th(IV) at different temperatures confirmed the adsorption processes were spontaneous.

Keywords:Acid-leached Red Mud;U(VI)/Th(IV);Adsorption;Isotherm;Kinetics

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[1] Cothern CR, Lappenbusch WL, Health Phys., 45, 89 (1983)

[2] Bleise A, Danesi PR, Burkart W, J. Environ. Radioactiv., 64, 93 (2003)

[3] Feng D, Aldrich C, Tan H, Miner. Eng., 13(6), 623 (2000)

[4] Palmer CD, Wittbrodt PR, Environ. Health Persp., 92, 25 (1991)

[5] Kim JH, Lee I, Yeon JW, Jung Y, Kim JM, J. Radioanal.Nucl. Chem., 286, 129 (2010)

[6] Singh BN, Maiti B, Talanta., 69, 393 (2006)

[7] Agrawal YK, Shrivastav P, Menon SK, Sep. Purif. Technol., 20(2-3), 177 (2000)

[8] Mohapatra PK, Manchanda VK, Talanta., 47, 1271 (1998)

[9] Ozaki H, Sharma K, Saktaywin W, Desalination, 144(1-3), 287 (2002)

[10] Marder L, Sulzbach GO, Bernardes AM, Ferreira JZ, J.Electrochem. Soc., 14, 610 (2003)

[11] El-Shahat MF, Moawed EA, Farag AB, Talanta., 71, 236 (2007)

[12] Pekel N, Giiven O, Colloids Surfaces A., 212, 155 (2003)

[13] Misaelides P, Godelitas A, Filippidis A, Charistos D, Anousis I, Sci. Total Environ., 173/174, 237 (1995)

[14] Tsezos M, Volesky B, Biotechnol. Bioeng., 23, 583 (1981)

[15] Rai S, Wasewar KL, Mukhopadhyay J, Yoo CK, Uslu H, Arch. Environ. Sci., 6, 13 (2012)

[16] Sun ZX, Willis F, Chen J, Chin. J. Nonferrous Met., 2, 15 (1992)

[17] Namasivayam C, Prabha D, Kumutha M, Bioresour. Technol., 64(1), 77 (1998)

[18] Al-shaybe M, Khalili F, Jordan J. Earth Environ. Sci., 2, 108 (2009)

[19] Giammar D, Geochemistry of uranium at mineral-water interfaces: rates of sorption-desorption and dissolution-precipitation reactions, Pasadena, California: PhD Thesis, California Institute of Technology (2001)

[20] Collins YE, Stotzky G, Appl. Environ. Microb., 58, 1592 (1992)

[21] Baes CF, Mesmer RE, The hydrolysis of cations, Wiley-Interscience, John Wiley and Sons, New York, 512 (1976)

[22] Atia AA, Donia AM, Shahin AE, Sep. Purif. Technol., 46(3), 208 (2005)

[23] Mohammad HK, Ali RK, Behrouz M, Mohammad FZ, Electron. J. Biotechnol., 9, 100 (2006)

[24] Humelnicu D, Popovici E, Dvininov E, Mita C, J. Radioanal.Nucl. Chem., 279, 131 (2009)

[25] Kumar PS, Kirthika K, J. Eng. Sci. Technol., 4, 351 (2009)

[26] Horsfall M, Spiff AI, Abia AA, Bull. Korean Chem. Soc., 25, 969 (2004)

[27] Abdel Ghani NT, Elchaghaby GA, Int. J. Environ. Sci. Technol., 4, 451 (2007)

[28] Sari A, Mendil D, Tuzen M, Soylak M, J. Hazard. Mater., 162(2-3), 874 (2009)