TY  - JOUR
AU  - Radovanović, Dragana
AU  - Dikić, Jelena
AU  - Štulović, Marija
AU  - Anđić, Zoran
AU  - Kamberović, Željko
AU  - Jevtić, Sanja
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6300
AB  - Low-cost and easily available natural zeolite is a promising adsorbent for metal ions removal in wastewater treatment. The possibility of using zeolitic tuff from Serbia in the form of Na-enriched natural zeolite (Na-Z) for the adsorption of Pb2+, Zn2+, Cu2+, and Ni2+ ions from wastewater was investigated in the presented paper. The research included Na-Z characterization and determination of adsorption kinetics in individual ion adsorption tests using Weber-Morris intraparticle diffusion model, non-linear pseudo-first-order (PFO), pseudo-second-order (PSO) and mixed-order (MO) kinetic models. The results indicate that the adsorption processes of metal ions on Na-Z are complex processes dominated by multiple rate-limiting mechanisms and best defined by the MO model. The mechanisms of ion diffusion and adsorption to active sites are equally represented in the Pb2+ adsorption process. The mechanism of ion adsorption on the active sites is the rate-limiting step in the Zn2+ adsorption process, while in the case of the Cu2+ and Ni2+ adsorption ion diffusion is the rate-limiting kinetic mechanism. Within the MO model, the PFO rate (external/internal diffusion) and the PSO rate (adsorption on active sites) were calculated and results were applied to a multicomponent wastewater sample in order to determine and explain the adsorption efficiency in wastewater treatment. The results show that the rate of adsorption of individual metal ions and the efficiency of ion removal from a multicomponent wastewater sample are influenced by several factors including the radius of the hydrated ion and the free energy of hydration. The achieved removal of metal ions by Na-Z is Pb2+ (89%) > Cu2+ (72%) > Zn2+ (61%) > Ni2+ (58%) and defines Na-enriched natural zeolite as an effective adsorbent in wastewater treatment.
PB  - Association of Metallurgical Engineers of Serbia AMES
T2  - Metallurgical and Materials Engineering
T1  - Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach
VL  - 29
IS  - 3
SP  - 20
EP  - 35
DO  - 10.56801/MME1007
ER  - 

@article{
author = "Radovanović, Dragana and Dikić, Jelena and Štulović, Marija and Anđić, Zoran and Kamberović, Željko and Jevtić, Sanja",
year = "2023",
abstract = "Low-cost and easily available natural zeolite is a promising adsorbent for metal ions removal in wastewater treatment. The possibility of using zeolitic tuff from Serbia in the form of Na-enriched natural zeolite (Na-Z) for the adsorption of Pb2+, Zn2+, Cu2+, and Ni2+ ions from wastewater was investigated in the presented paper. The research included Na-Z characterization and determination of adsorption kinetics in individual ion adsorption tests using Weber-Morris intraparticle diffusion model, non-linear pseudo-first-order (PFO), pseudo-second-order (PSO) and mixed-order (MO) kinetic models. The results indicate that the adsorption processes of metal ions on Na-Z are complex processes dominated by multiple rate-limiting mechanisms and best defined by the MO model. The mechanisms of ion diffusion and adsorption to active sites are equally represented in the Pb2+ adsorption process. The mechanism of ion adsorption on the active sites is the rate-limiting step in the Zn2+ adsorption process, while in the case of the Cu2+ and Ni2+ adsorption ion diffusion is the rate-limiting kinetic mechanism. Within the MO model, the PFO rate (external/internal diffusion) and the PSO rate (adsorption on active sites) were calculated and results were applied to a multicomponent wastewater sample in order to determine and explain the adsorption efficiency in wastewater treatment. The results show that the rate of adsorption of individual metal ions and the efficiency of ion removal from a multicomponent wastewater sample are influenced by several factors including the radius of the hydrated ion and the free energy of hydration. The achieved removal of metal ions by Na-Z is Pb2+ (89%) > Cu2+ (72%) > Zn2+ (61%) > Ni2+ (58%) and defines Na-enriched natural zeolite as an effective adsorbent in wastewater treatment.",
publisher = "Association of Metallurgical Engineers of Serbia AMES",
journal = "Metallurgical and Materials Engineering",
title = "Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach",
volume = "29",
number = "3",
pages = "20-35",
doi = "10.56801/MME1007"
}

Radovanović, D., Dikić, J., Štulović, M., Anđić, Z., Kamberović, Ž.,& Jevtić, S.. (2023). Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia AMES., 29(3), 20-35.
https://doi.org/10.56801/MME1007

Radovanović D, Dikić J, Štulović M, Anđić Z, Kamberović Ž, Jevtić S. Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach. in Metallurgical and Materials Engineering. 2023;29(3):20-35.
doi:10.56801/MME1007 .

Radovanović, Dragana, Dikić, Jelena, Štulović, Marija, Anđić, Zoran, Kamberović, Željko, Jevtić, Sanja, "Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach" in Metallurgical and Materials Engineering, 29, no. 3 (2023):20-35,
https://doi.org/10.56801/MME1007 . .

TY  - CONF
AU  - Sokić, Katarina
AU  - Dikić, Jelena
AU  - Veljović, Đorđe
AU  - Đokić, Jovana
AU  - Anđić, Zoran
AU  - Jevtić, Sanja O.
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6243
AB  - Natural zeolite is a good sorbent for many cations due to its specific porous structure. The degree of sorption efficiency depends on the cation type and the availability of exchange positions in the zeolite lattice. The aim of this work is to
examine the synthesis possibility of a new adsorbent based on natural zeolite and hydroxyapatite. The adsorbent was prepared mechanochemically by using clinoptilolite-rich zeolite tuff from the Slanci deposit (Serbia) and hydroxyapatite
obtained by the hydrothermal process. The milling process was performed in a ball mill and optimized regarding contact time and milling speed. For the synthesis of zeolite/hydroxyapatite adsorbent (ZHAp), optimal values for these two parameters were 10 min and 250 rpm, respectively. The resulting sample ZHAp was characterized by X-ray powder diffraction, thermal analysis and scanning electron microscopy. Diffraction analysis of the ZHAp confirmed the presence of the most abundant mineral in zeolite tuff - clinoptilolite and hydroxyapatite. Needle-like crystals of hydroxyapatite on the clinoptilolite surface are observed in SEM images. Zeolite/hydroxyapatite sample is thermally stable at 800 °C. Adsorption properties of ZHAp were examined for nickel and chromium ions, towards which natural zeolite shows a low affinity. The presence of hydroxyapatite on the zeolite surface led to an increase in the adsorption capacity more than two times for both tested ions compared to the initial zeolite tuff.
PB  - Association of Metallurgical Engineers of Serbia (AMES)
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
T1  - Mechanochemical synthesis and characterization of the adsorbents based on natural zeolite and hydroxyapatite
SP  - 395
EP  - 400
UR  - https://hdl.handle.net/21.15107/rcub_cherry_6243
ER  - 

@conference{
author = "Sokić, Katarina and Dikić, Jelena and Veljović, Đorđe and Đokić, Jovana and Anđić, Zoran and Jevtić, Sanja O.",
year = "2023",
abstract = "Natural zeolite is a good sorbent for many cations due to its specific porous structure. The degree of sorption efficiency depends on the cation type and the availability of exchange positions in the zeolite lattice. The aim of this work is to
examine the synthesis possibility of a new adsorbent based on natural zeolite and hydroxyapatite. The adsorbent was prepared mechanochemically by using clinoptilolite-rich zeolite tuff from the Slanci deposit (Serbia) and hydroxyapatite
obtained by the hydrothermal process. The milling process was performed in a ball mill and optimized regarding contact time and milling speed. For the synthesis of zeolite/hydroxyapatite adsorbent (ZHAp), optimal values for these two parameters were 10 min and 250 rpm, respectively. The resulting sample ZHAp was characterized by X-ray powder diffraction, thermal analysis and scanning electron microscopy. Diffraction analysis of the ZHAp confirmed the presence of the most abundant mineral in zeolite tuff - clinoptilolite and hydroxyapatite. Needle-like crystals of hydroxyapatite on the clinoptilolite surface are observed in SEM images. Zeolite/hydroxyapatite sample is thermally stable at 800 °C. Adsorption properties of ZHAp were examined for nickel and chromium ions, towards which natural zeolite shows a low affinity. The presence of hydroxyapatite on the zeolite surface led to an increase in the adsorption capacity more than two times for both tested ions compared to the initial zeolite tuff.",
publisher = "Association of Metallurgical Engineers of Serbia (AMES)",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023",
title = "Mechanochemical synthesis and characterization of the adsorbents based on natural zeolite and hydroxyapatite",
pages = "395-400",
url = "https://hdl.handle.net/21.15107/rcub_cherry_6243"
}

Sokić, K., Dikić, J., Veljović, Đ., Đokić, J., Anđić, Z.,& Jevtić, S. O.. (2023). Mechanochemical synthesis and characterization of the adsorbents based on natural zeolite and hydroxyapatite. in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
Association of Metallurgical Engineers of Serbia (AMES)., 395-400.
https://hdl.handle.net/21.15107/rcub_cherry_6243

Sokić K, Dikić J, Veljović Đ, Đokić J, Anđić Z, Jevtić SO. Mechanochemical synthesis and characterization of the adsorbents based on natural zeolite and hydroxyapatite. in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023. 2023;:395-400.
https://hdl.handle.net/21.15107/rcub_cherry_6243 .

Sokić, Katarina, Dikić, Jelena, Veljović, Đorđe, Đokić, Jovana, Anđić, Zoran, Jevtić, Sanja O., "Mechanochemical synthesis and characterization of the adsorbents based on natural zeolite and hydroxyapatite" in 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 (2023):395-400,
https://hdl.handle.net/21.15107/rcub_cherry_6243 .