Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite
Апстракт
Zeolite and hydroxyapatite (HAP) are well-known sorbent materials, with high capacities for removal of toxic heavy metals. In this study, the influence of process parameters onto kinetics of Cu2+ sorption by zeolite and HAP was analyzed and compared. The effects of Cu2+ concentration, sorbent mass and agitation speed were explored for both materials, as well as the effect of zeolite particle size. Using single resistance mass transfer models, the values of volumetric mass transfer coefficient (k(f)a) and effective diffusion coefficient (D-eff) were defined. The obtained results showed that the sorption onto HAP was governed only by pore diffusion, since the film diffusion and surface saturation occurred within the first few minutes of the reaction. Using zeolite, sorption was governed by film diffusion during the first 10 min, followed by diffusion inside the pores. The resistance of releasing cations counter diffusion was negligible in the fluid film, but it was considerable in sorben...t pores. (C) 2013 Elsevier B.V. All rights reserved.
Кључне речи:
Cu2+ / Sorption kinetics / Hydroxyapatite / Zeolite / Mass transfer / DiffusionИзвор:
Chemical Engineering Journal, 2013, 223, 833-843Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1016/j.cej.2013.03.034
ISSN: 1385-8947
WoS: 000320631200095
Scopus: 2-s2.0-84876321950
Институција/група
VinčaTY - JOUR AU - Šljivić-Ivanović, Marija Z. AU - Smičiklas, Ivana D. AU - Pejanović, Srđan PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5554 AB - Zeolite and hydroxyapatite (HAP) are well-known sorbent materials, with high capacities for removal of toxic heavy metals. In this study, the influence of process parameters onto kinetics of Cu2+ sorption by zeolite and HAP was analyzed and compared. The effects of Cu2+ concentration, sorbent mass and agitation speed were explored for both materials, as well as the effect of zeolite particle size. Using single resistance mass transfer models, the values of volumetric mass transfer coefficient (k(f)a) and effective diffusion coefficient (D-eff) were defined. The obtained results showed that the sorption onto HAP was governed only by pore diffusion, since the film diffusion and surface saturation occurred within the first few minutes of the reaction. Using zeolite, sorption was governed by film diffusion during the first 10 min, followed by diffusion inside the pores. The resistance of releasing cations counter diffusion was negligible in the fluid film, but it was considerable in sorbent pores. (C) 2013 Elsevier B.V. All rights reserved. T2 - Chemical Engineering Journal T1 - Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite VL - 223 SP - 833 EP - 843 DO - 10.1016/j.cej.2013.03.034 ER -
@article{ author = "Šljivić-Ivanović, Marija Z. and Smičiklas, Ivana D. and Pejanović, Srđan", year = "2013", abstract = "Zeolite and hydroxyapatite (HAP) are well-known sorbent materials, with high capacities for removal of toxic heavy metals. In this study, the influence of process parameters onto kinetics of Cu2+ sorption by zeolite and HAP was analyzed and compared. The effects of Cu2+ concentration, sorbent mass and agitation speed were explored for both materials, as well as the effect of zeolite particle size. Using single resistance mass transfer models, the values of volumetric mass transfer coefficient (k(f)a) and effective diffusion coefficient (D-eff) were defined. The obtained results showed that the sorption onto HAP was governed only by pore diffusion, since the film diffusion and surface saturation occurred within the first few minutes of the reaction. Using zeolite, sorption was governed by film diffusion during the first 10 min, followed by diffusion inside the pores. The resistance of releasing cations counter diffusion was negligible in the fluid film, but it was considerable in sorbent pores. (C) 2013 Elsevier B.V. All rights reserved.", journal = "Chemical Engineering Journal", title = "Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite", volume = "223", pages = "833-843", doi = "10.1016/j.cej.2013.03.034" }
Šljivić-Ivanović, M. Z., Smičiklas, I. D.,& Pejanović, S.. (2013). Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite. in Chemical Engineering Journal, 223, 833-843. https://doi.org/10.1016/j.cej.2013.03.034
Šljivić-Ivanović MZ, Smičiklas ID, Pejanović S. Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite. in Chemical Engineering Journal. 2013;223:833-843. doi:10.1016/j.cej.2013.03.034 .
Šljivić-Ivanović, Marija Z., Smičiklas, Ivana D., Pejanović, Srđan, "Analysis and comparison of mass transfer phenomena related to Cu2+ sorption by hydroxyapatite and zeolite" in Chemical Engineering Journal, 223 (2013):833-843, https://doi.org/10.1016/j.cej.2013.03.034 . .