TY  - JOUR
AU  - Smiljanić, Slavko N.
AU  - Smičiklas, Ivana D.
AU  - Perić-Grujić, Aleksandra A.
AU  - Šljivić-Ivanović, Marija Z.
AU  - Dukić, B.
AU  - Lončar, Boris B.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4298
AB  - The waste red mud, remaining in remarkable quantities after the digestion of bauxite ores following the Bayer process, contains number of voluble minerals with excellent sorption properties towards aqueous heavy metals. Heating at 600 degrees C was found to be a favorable treatment for revalorization of rinsed red mud into an efficient Ni2+ sorbent (RBRM600). As potential practical application of RBRM600 for Ni2+ accumulation greatly depends on the solution composition and pH, the influence of these vital process variables was considered in this study. The initial pH rise from 2 to 3.5 caused the most evident increase in the amounts of Ni2+ removed: furthermore, the effect was more obvious for lower initial sorbate concentrations. Conversely, changes of the solution pH between 3.5 and 8 did not have a significant influence on the sorption. The increase of initial cation concentration caused the increase of the sorbed amount. following Langmuir isotherm model. The calculated maximum sorption capacity of 27.54 mg/g demonstrated capacity increase of approximately 20% in respect to inactivated rinsed red mud. Coexisting cations inhibited Ni2+ removal in the following order: Cu2+ GT Pb2+ GT = Zn2+ GT Cd2+ GT GT Ca2+, whereas the presence of Na+ and K+ did not affect the process. The investigated anions caused decrease of Ni2+ removal efficiency in the order: EDTA GT chromate GT acetate GT sulphate, however, fluoride slightly improved sorption. Low desorption of Ni2+ in various media showed that the heavy metal cations are tightly bound to RBRM600 surface, thus disposal or reuse of spent sorbent should be considered. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud
VL  - 168
IS  - 2
SP  - 610
EP  - 619
DO  - 10.1016/j.cej.2011.01.034
ER  - 

@article{
author = "Smiljanić, Slavko N. and Smičiklas, Ivana D. and Perić-Grujić, Aleksandra A. and Šljivić-Ivanović, Marija Z. and Dukić, B. and Lončar, Boris B.",
year = "2011",
abstract = "The waste red mud, remaining in remarkable quantities after the digestion of bauxite ores following the Bayer process, contains number of voluble minerals with excellent sorption properties towards aqueous heavy metals. Heating at 600 degrees C was found to be a favorable treatment for revalorization of rinsed red mud into an efficient Ni2+ sorbent (RBRM600). As potential practical application of RBRM600 for Ni2+ accumulation greatly depends on the solution composition and pH, the influence of these vital process variables was considered in this study. The initial pH rise from 2 to 3.5 caused the most evident increase in the amounts of Ni2+ removed: furthermore, the effect was more obvious for lower initial sorbate concentrations. Conversely, changes of the solution pH between 3.5 and 8 did not have a significant influence on the sorption. The increase of initial cation concentration caused the increase of the sorbed amount. following Langmuir isotherm model. The calculated maximum sorption capacity of 27.54 mg/g demonstrated capacity increase of approximately 20% in respect to inactivated rinsed red mud. Coexisting cations inhibited Ni2+ removal in the following order: Cu2+ GT Pb2+ GT = Zn2+ GT Cd2+ GT GT Ca2+, whereas the presence of Na+ and K+ did not affect the process. The investigated anions caused decrease of Ni2+ removal efficiency in the order: EDTA GT chromate GT acetate GT sulphate, however, fluoride slightly improved sorption. Low desorption of Ni2+ in various media showed that the heavy metal cations are tightly bound to RBRM600 surface, thus disposal or reuse of spent sorbent should be considered. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud",
volume = "168",
number = "2",
pages = "610-619",
doi = "10.1016/j.cej.2011.01.034"
}

Smiljanić, S. N., Smičiklas, I. D., Perić-Grujić, A. A., Šljivić-Ivanović, M. Z., Dukić, B.,& Lončar, B. B.. (2011). Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud. in Chemical Engineering Journal, 168(2), 610-619.
https://doi.org/10.1016/j.cej.2011.01.034

Smiljanić SN, Smičiklas ID, Perić-Grujić AA, Šljivić-Ivanović MZ, Dukić B, Lončar BB. Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud. in Chemical Engineering Journal. 2011;168(2):610-619.
doi:10.1016/j.cej.2011.01.034 .

Smiljanić, Slavko N., Smičiklas, Ivana D., Perić-Grujić, Aleksandra A., Šljivić-Ivanović, Marija Z., Dukić, B., Lončar, Boris B., "Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud" in Chemical Engineering Journal, 168, no. 2 (2011):610-619,
https://doi.org/10.1016/j.cej.2011.01.034 . .