The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents
Апстракт
The kinetics of Cu2+ sorption on to zeolite, clay and diatomite was investigated as a function of initial metal concentrations. For consideration of the mass transfer phenomena, single resistance models based on both film and intraparticle diffusion were tested and compared. The obtained results suggested that the rate-limiting step in Cu2+ sorption strongly depended on the sorbent type, as well as on initial cation concentration. The decrease in external mass transfer coefficients with the increase in initial metal concentrations was in excellent agreement with expressions based on Sherwood and Schmidt dimensionless numbers. The internal diffusivities through zeolite particles were in the range 1.0 x 10-11 to 1.0 x 10-13 m2/min, depending on the Cu2+ concentration and the applied theoretical model.
Кључне речи:
mass transfer / Cu2+ / zeolite / clay / diatomiteИзвор:
Environmental Technology, 2011, 32, 9, 933-943Финансирање / пројекти:
- Истраживање хемијских и физичких феномена у обради радиоактивног и опасног отпада (RS-MESTD-MPN2006-2010-142050)
DOI: 10.1080/09593330.2010.521952
ISSN: 0959-3330
PubMed: 21882547
WoS: 000291813100002
Scopus: 2-s2.0-79959415198
Институција/група
VinčaTY - JOUR AU - Šljivić-Ivanović, Marija Z. AU - Smičiklas, Ivana D. AU - Plećaš, Ilija B. AU - Pejanović, Srđan PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4394 AB - The kinetics of Cu2+ sorption on to zeolite, clay and diatomite was investigated as a function of initial metal concentrations. For consideration of the mass transfer phenomena, single resistance models based on both film and intraparticle diffusion were tested and compared. The obtained results suggested that the rate-limiting step in Cu2+ sorption strongly depended on the sorbent type, as well as on initial cation concentration. The decrease in external mass transfer coefficients with the increase in initial metal concentrations was in excellent agreement with expressions based on Sherwood and Schmidt dimensionless numbers. The internal diffusivities through zeolite particles were in the range 1.0 x 10-11 to 1.0 x 10-13 m2/min, depending on the Cu2+ concentration and the applied theoretical model. T2 - Environmental Technology T1 - The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents VL - 32 IS - 9 SP - 933 EP - 943 DO - 10.1080/09593330.2010.521952 ER -
@article{ author = "Šljivić-Ivanović, Marija Z. and Smičiklas, Ivana D. and Plećaš, Ilija B. and Pejanović, Srđan", year = "2011", abstract = "The kinetics of Cu2+ sorption on to zeolite, clay and diatomite was investigated as a function of initial metal concentrations. For consideration of the mass transfer phenomena, single resistance models based on both film and intraparticle diffusion were tested and compared. The obtained results suggested that the rate-limiting step in Cu2+ sorption strongly depended on the sorbent type, as well as on initial cation concentration. The decrease in external mass transfer coefficients with the increase in initial metal concentrations was in excellent agreement with expressions based on Sherwood and Schmidt dimensionless numbers. The internal diffusivities through zeolite particles were in the range 1.0 x 10-11 to 1.0 x 10-13 m2/min, depending on the Cu2+ concentration and the applied theoretical model.", journal = "Environmental Technology", title = "The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents", volume = "32", number = "9", pages = "933-943", doi = "10.1080/09593330.2010.521952" }
Šljivić-Ivanović, M. Z., Smičiklas, I. D., Plećaš, I. B.,& Pejanović, S.. (2011). The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents. in Environmental Technology, 32(9), 933-943. https://doi.org/10.1080/09593330.2010.521952
Šljivić-Ivanović MZ, Smičiklas ID, Plećaš IB, Pejanović S. The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents. in Environmental Technology. 2011;32(9):933-943. doi:10.1080/09593330.2010.521952 .
Šljivić-Ivanović, Marija Z., Smičiklas, Ivana D., Plećaš, Ilija B., Pejanović, Srđan, "The role of external and internal mass transfer in the process of Cu2+removal by natural mineral sorbents" in Environmental Technology, 32, no. 9 (2011):933-943, https://doi.org/10.1080/09593330.2010.521952 . .