TY  - JOUR
AU  - Pantić, Krstimir
AU  - Bajić, Zoran J.
AU  - Veličković, Zlate
AU  - Nesić, Jovica Z.
AU  - Đolić, Maja
AU  - Tomić, Nataša
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4071
AB  - This batch and column kinetics study of arsenic removal utilized copper-impregnated natural mineral tufa (T-Cu(A-C)) under three ranges of particle size. Non-competitive kinetic data fitted by the Weber-Morris model and the single resistance mass transfer model, i.e., mass transfer coefficient k(f)a and diffusion coefficient (D-eff) determination, defined intra-particle diffusion as the dominating rate controlling step. Kinetic activation parameters, derived from pseudo-second-order rate constants, showed low dependence on adsorbent geometry/morphology and porosity, while the diffusivity of the pores was significant to removal efficacy. The results of competitive arsenic adsorption in a multi-component system of phosphate, chromate, or silicate showed effective arsenic removal using T-Cu adsorbents. The high adsorption rate-pseudo-second-order constants in the range 0.509-0.789gmg(-1)min(-1) for As(V) and 0.304-0.532gmg(1)min(1) for As(III)-justified further application T-Cu(A-C) in a flow system. The fixed-bed column adsorption data was fitted using empirical Bohart-Adams, Yoon-Nelson, Thomas, and dose-response models to indicate capacities and breakthrough time dependence on arsenic influent concentration and the flow rate. Pore surface diffusion modeling (PSDM), following bed-column testing, further determined adsorbent capacities and mass transport under applied hydraulic loading rates.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study
EP  - 24161
IS  - 23
SP  - 24143
VL  - 26
DO  - 10.1007/s11356-019-05547-7
ER  - 

@article{
author = "Pantić, Krstimir and Bajić, Zoran J. and Veličković, Zlate and Nesić, Jovica Z. and Đolić, Maja and Tomić, Nataša and Marinković, Aleksandar",
year = "2019",
abstract = "This batch and column kinetics study of arsenic removal utilized copper-impregnated natural mineral tufa (T-Cu(A-C)) under three ranges of particle size. Non-competitive kinetic data fitted by the Weber-Morris model and the single resistance mass transfer model, i.e., mass transfer coefficient k(f)a and diffusion coefficient (D-eff) determination, defined intra-particle diffusion as the dominating rate controlling step. Kinetic activation parameters, derived from pseudo-second-order rate constants, showed low dependence on adsorbent geometry/morphology and porosity, while the diffusivity of the pores was significant to removal efficacy. The results of competitive arsenic adsorption in a multi-component system of phosphate, chromate, or silicate showed effective arsenic removal using T-Cu adsorbents. The high adsorption rate-pseudo-second-order constants in the range 0.509-0.789gmg(-1)min(-1) for As(V) and 0.304-0.532gmg(1)min(1) for As(III)-justified further application T-Cu(A-C) in a flow system. The fixed-bed column adsorption data was fitted using empirical Bohart-Adams, Yoon-Nelson, Thomas, and dose-response models to indicate capacities and breakthrough time dependence on arsenic influent concentration and the flow rate. Pore surface diffusion modeling (PSDM), following bed-column testing, further determined adsorbent capacities and mass transport under applied hydraulic loading rates.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study",
pages = "24161-24143",
number = "23",
volume = "26",
doi = "10.1007/s11356-019-05547-7"
}

Pantić, K., Bajić, Z. J., Veličković, Z., Nesić, J. Z., Đolić, M., Tomić, N.,& Marinković, A.. (2019). Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 26(23), 24143-24161.
https://doi.org/10.1007/s11356-019-05547-7

Pantić K, Bajić ZJ, Veličković Z, Nesić JZ, Đolić M, Tomić N, Marinković A. Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study. in Environmental Science and Pollution Research. 2019;26(23):24143-24161.
doi:10.1007/s11356-019-05547-7 .

Pantić, Krstimir, Bajić, Zoran J., Veličković, Zlate, Nesić, Jovica Z., Đolić, Maja, Tomić, Nataša, Marinković, Aleksandar, "Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study" in Environmental Science and Pollution Research, 26, no. 23 (2019):24143-24161,
https://doi.org/10.1007/s11356-019-05547-7 . .

TY  - JOUR
AU  - Pantić, Krstimir
AU  - Bajić, Zoran J.
AU  - Veličković, Zlate
AU  - Đokić, Veljko
AU  - Rusmirović, Jelena
AU  - Marinković, Aleksandar
AU  - Perić-Grujić, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4108
AB  - Synthesis of branched aminated waste polyacrylonitrile (PAN) fibers, realized in a three addition/amidation successive steps, was performed in order to obtain AS3-PAN adsorbent. Influence of various operating parameters such as pH, contact time, adsorbent mass and initial concentration of pollutants, on adsorption capacity has been studied. Design of the experimental plan of adsorption experiments, defined by response surface methodology (RSM), rationalized the number of necessary experiments. The calculated adsorption capacities for AS3-PAN, obtained by Langmuir model, were 58.94, 41.07, 34.51, 24.54 and 29.61 mg g(-1) for Pb2+, Cd2+, Ni2+, Cr(VI) and As(V) ion, respectively. The results of pseudo-second-order reaction rate and Weber-Morris kinetic model indicated significant resistance due to intra-particle (pore) diffusion. The experimental results were compared with the theoretically calculated ones, obtained by RSM prediction model, and validation of applied methodology was performed by testing the quality of the regression analysis with analysis of variance test.
PB  - Desalination Publ, Hopkinton
T2  - Desalination and Water Treatment
T1  - Adsorption performances of branched aminated waste polyacrylonitrile fibers: experimental versus modelling study
EP  - 249
SP  - 223
VL  - 171
DO  - 10.5004/dwt.2019.24758
ER  - 

@article{
author = "Pantić, Krstimir and Bajić, Zoran J. and Veličković, Zlate and Đokić, Veljko and Rusmirović, Jelena and Marinković, Aleksandar and Perić-Grujić, Aleksandra",
year = "2019",
abstract = "Synthesis of branched aminated waste polyacrylonitrile (PAN) fibers, realized in a three addition/amidation successive steps, was performed in order to obtain AS3-PAN adsorbent. Influence of various operating parameters such as pH, contact time, adsorbent mass and initial concentration of pollutants, on adsorption capacity has been studied. Design of the experimental plan of adsorption experiments, defined by response surface methodology (RSM), rationalized the number of necessary experiments. The calculated adsorption capacities for AS3-PAN, obtained by Langmuir model, were 58.94, 41.07, 34.51, 24.54 and 29.61 mg g(-1) for Pb2+, Cd2+, Ni2+, Cr(VI) and As(V) ion, respectively. The results of pseudo-second-order reaction rate and Weber-Morris kinetic model indicated significant resistance due to intra-particle (pore) diffusion. The experimental results were compared with the theoretically calculated ones, obtained by RSM prediction model, and validation of applied methodology was performed by testing the quality of the regression analysis with analysis of variance test.",
publisher = "Desalination Publ, Hopkinton",
journal = "Desalination and Water Treatment",
title = "Adsorption performances of branched aminated waste polyacrylonitrile fibers: experimental versus modelling study",
pages = "249-223",
volume = "171",
doi = "10.5004/dwt.2019.24758"
}

Pantić, K., Bajić, Z. J., Veličković, Z., Đokić, V., Rusmirović, J., Marinković, A.,& Perić-Grujić, A.. (2019). Adsorption performances of branched aminated waste polyacrylonitrile fibers: experimental versus modelling study. in Desalination and Water Treatment
Desalination Publ, Hopkinton., 171, 223-249.
https://doi.org/10.5004/dwt.2019.24758

Pantić K, Bajić ZJ, Veličković Z, Đokić V, Rusmirović J, Marinković A, Perić-Grujić A. Adsorption performances of branched aminated waste polyacrylonitrile fibers: experimental versus modelling study. in Desalination and Water Treatment. 2019;171:223-249.
doi:10.5004/dwt.2019.24758 .

Pantić, Krstimir, Bajić, Zoran J., Veličković, Zlate, Đokić, Veljko, Rusmirović, Jelena, Marinković, Aleksandar, Perić-Grujić, Aleksandra, "Adsorption performances of branched aminated waste polyacrylonitrile fibers: experimental versus modelling study" in Desalination and Water Treatment, 171 (2019):223-249,
https://doi.org/10.5004/dwt.2019.24758 . .