Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud
Samo za registrovane korisnike
2011
Autori
Smiljanić, Slavko N.Smičiklas, Ivana D.
Perić-Grujić, Aleksandra
Šljivić-Ivanović, Marija Z.
Dukić, B.
Lončar, Boris
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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 sor...ption 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.
Ključne reči:
Red mud / Ni2+ / Sorption / pH / Competing ions / DesorptionIzvor:
Chemical Engineering Journal, 2011, 168, 2, 610-619Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1016/j.cej.2011.01.034
ISSN: 1385-8947
WoS: 000290133700014
Scopus: 2-s2.0-79953293501
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Smiljanić, Slavko N. AU - Smičiklas, Ivana D. AU - Perić-Grujić, Aleksandra AU - Šljivić-Ivanović, Marija Z. AU - Dukić, B. AU - Lončar, Boris PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1959 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. PB - Elsevier Science Sa, Lausanne T2 - Chemical Engineering Journal T1 - Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud EP - 619 IS - 2 SP - 610 VL - 168 DO - 10.1016/j.cej.2011.01.034 ER -
@article{ author = "Smiljanić, Slavko N. and Smičiklas, Ivana D. and Perić-Grujić, Aleksandra and Šljivić-Ivanović, Marija Z. and Dukić, B. and Lončar, Boris", 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.", publisher = "Elsevier Science Sa, Lausanne", journal = "Chemical Engineering Journal", title = "Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud", pages = "619-610", number = "2", volume = "168", doi = "10.1016/j.cej.2011.01.034" }
Smiljanić, S. N., Smičiklas, I. D., Perić-Grujić, A., Šljivić-Ivanović, M. Z., Dukić, B.,& Lončar, B.. (2011). Study of factors affecting Ni2+ immobilization efficiency by temperature activated red mud. in Chemical Engineering Journal Elsevier Science Sa, Lausanne., 168(2), 610-619. https://doi.org/10.1016/j.cej.2011.01.034
Smiljanić SN, Smičiklas ID, Perić-Grujić A, Šljivić-Ivanović MZ, Dukić B, Lončar B. 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, Šljivić-Ivanović, Marija Z., Dukić, B., Lončar, Boris, "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 . .