TY  - CONF
AU  - Kragović, Milan
AU  - Gulicovski, Jelena
AU  - Milićević, Sonja
AU  - Pašalić, Snežana
AU  - Dašić, Predrag
AU  - Ristović, Ivica
AU  - Stojmenović, Marija
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13217
AB  - The influence of modification on the textural properties of the natural zeolite (NZ) and its efficiency for the heavy metals ions removal from contaminated aqueous solution was investigated. The mineralogical composition of the NZ showed that the dominant mineral is clinoptilolite. The surface of the NZ was modified combining the methods for pure goethite and iron-coated zeolite preparations. After modification, the cation exchange capacities and the specific surface area increased from 30.2 to 52.5 m2/g, i.e., from 141 to 165 meq/100g, respectively. Adsorption experiments were done for different heavy metals initial concentrations (copper(II) 0.8 - 12.6 Cu2+mmol/dm3 or lead(II) 1.9 – 29.0 Pb2+mmol/dm3), for 24h, at pH 4.2, in batch conditions. Results showed positive influence of modification on the heavy metals ions removal. The results were fitted with Langmuir and Freundlich adsorption models, and the best fits were obtained with Freundlich model (R2 > 0.92).
PB  - Springer Science and Business Media
C3  - The 17th International Conference Interdisciplinarity in Engineering : Conference Proceedings
T1  - Influence of Modification on the Textural Properties of the Natural Zeolite and Its Efficiency for the Heavy Metals Ions Removal from Contaminated Aqueous Solution
VL  - 926
VL  - 1
SP  - 267
EP  - 276
DO  - 10.1007/978-3-031-54664-8_25
ER  - 

@conference{
author = "Kragović, Milan and Gulicovski, Jelena and Milićević, Sonja and Pašalić, Snežana and Dašić, Predrag and Ristović, Ivica and Stojmenović, Marija",
year = "2024",
abstract = "The influence of modification on the textural properties of the natural zeolite (NZ) and its efficiency for the heavy metals ions removal from contaminated aqueous solution was investigated. The mineralogical composition of the NZ showed that the dominant mineral is clinoptilolite. The surface of the NZ was modified combining the methods for pure goethite and iron-coated zeolite preparations. After modification, the cation exchange capacities and the specific surface area increased from 30.2 to 52.5 m2/g, i.e., from 141 to 165 meq/100g, respectively. Adsorption experiments were done for different heavy metals initial concentrations (copper(II) 0.8 - 12.6 Cu2+mmol/dm3 or lead(II) 1.9 – 29.0 Pb2+mmol/dm3), for 24h, at pH 4.2, in batch conditions. Results showed positive influence of modification on the heavy metals ions removal. The results were fitted with Langmuir and Freundlich adsorption models, and the best fits were obtained with Freundlich model (R2 > 0.92).",
publisher = "Springer Science and Business Media",
journal = "The 17th International Conference Interdisciplinarity in Engineering : Conference Proceedings",
title = "Influence of Modification on the Textural Properties of the Natural Zeolite and Its Efficiency for the Heavy Metals Ions Removal from Contaminated Aqueous Solution",
volume = "926, 1",
pages = "267-276",
doi = "10.1007/978-3-031-54664-8_25"
}

Kragović, M., Gulicovski, J., Milićević, S., Pašalić, S., Dašić, P., Ristović, I.,& Stojmenović, M.. (2024). Influence of Modification on the Textural Properties of the Natural Zeolite and Its Efficiency for the Heavy Metals Ions Removal from Contaminated Aqueous Solution. in The 17th International Conference Interdisciplinarity in Engineering : Conference Proceedings
Springer Science and Business Media., 926, 267-276.
https://doi.org/10.1007/978-3-031-54664-8_25

Kragović M, Gulicovski J, Milićević S, Pašalić S, Dašić P, Ristović I, Stojmenović M. Influence of Modification on the Textural Properties of the Natural Zeolite and Its Efficiency for the Heavy Metals Ions Removal from Contaminated Aqueous Solution. in The 17th International Conference Interdisciplinarity in Engineering : Conference Proceedings. 2024;926:267-276.
doi:10.1007/978-3-031-54664-8_25 .

Kragović, Milan, Gulicovski, Jelena, Milićević, Sonja, Pašalić, Snežana, Dašić, Predrag, Ristović, Ivica, Stojmenović, Marija, "Influence of Modification on the Textural Properties of the Natural Zeolite and Its Efficiency for the Heavy Metals Ions Removal from Contaminated Aqueous Solution" in The 17th International Conference Interdisciplinarity in Engineering : Conference Proceedings, 926 (2024):267-276,
https://doi.org/10.1007/978-3-031-54664-8_25 . .

TY  - JOUR
AU  - Avdeenko, Anatoly P.
AU  - Belova, Elena A.
AU  - Dašić, Predrag
AU  - Konovalova, Svetlana A.
AU  - Baklanova, Larisa V.
AU  - Krstić, Sanja S.
AU  - Milosavljević, Milutin M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1364
AB  - Carotenoids are known for their lower environmental pollution, lower costs, shorter extraction time compared to regular extraction methods and higher extraction efficiency. Ultrasound has significant advantages in the extraction of a great number of biologically active compounds including carotenoids. Benefits of using ultrasound for extraction of various compounds are numerous and include effective mixing and micro-mixing, more efficient energy transfer, reduced thermal and concentration gradients, reduced temperature. The aim of this work was to investigate the influence of two-frequency ultrasound main parameters such as ultrasonic intensity, sonication time, and temperature. Application of two-frequency ultrasound (simultaneous influence of ultrasound with frequency of 20-46 kHz, intensity of 1.5-2.5 W/cm(2) and frequency of 1.0-2.0 MHz, intensity of 2.0- 3.0 W/cm(2)) raises the percentage of beta-carotene extraction from biomass of the fungus Blakeslea trispora from 90-92% up to 98-99% in comparison with one frequency ultrasound. The recommended oil temperature for the extraction process is 35 degrees C, because lower temperature leads to reduction of percentage of beta-carotene extraction, and higher temperature promotes unjustified increase of expenditure of energy.
T2  - Hemijska industrija
T1  - Efficient two-frequency ultrasound extraction of beta-carotene from the fungus Blakeslea trispora
VL  - 71
IS  - 4
SP  - 329
EP  - 336
DO  - 10.2298/HEMIND151110043A
ER  - 

@article{
author = "Avdeenko, Anatoly P. and Belova, Elena A. and Dašić, Predrag and Konovalova, Svetlana A. and Baklanova, Larisa V. and Krstić, Sanja S. and Milosavljević, Milutin M.",
year = "2017",
abstract = "Carotenoids are known for their lower environmental pollution, lower costs, shorter extraction time compared to regular extraction methods and higher extraction efficiency. Ultrasound has significant advantages in the extraction of a great number of biologically active compounds including carotenoids. Benefits of using ultrasound for extraction of various compounds are numerous and include effective mixing and micro-mixing, more efficient energy transfer, reduced thermal and concentration gradients, reduced temperature. The aim of this work was to investigate the influence of two-frequency ultrasound main parameters such as ultrasonic intensity, sonication time, and temperature. Application of two-frequency ultrasound (simultaneous influence of ultrasound with frequency of 20-46 kHz, intensity of 1.5-2.5 W/cm(2) and frequency of 1.0-2.0 MHz, intensity of 2.0- 3.0 W/cm(2)) raises the percentage of beta-carotene extraction from biomass of the fungus Blakeslea trispora from 90-92% up to 98-99% in comparison with one frequency ultrasound. The recommended oil temperature for the extraction process is 35 degrees C, because lower temperature leads to reduction of percentage of beta-carotene extraction, and higher temperature promotes unjustified increase of expenditure of energy.",
journal = "Hemijska industrija",
title = "Efficient two-frequency ultrasound extraction of beta-carotene from the fungus Blakeslea trispora",
volume = "71",
number = "4",
pages = "329-336",
doi = "10.2298/HEMIND151110043A"
}

Avdeenko, A. P., Belova, E. A., Dašić, P., Konovalova, S. A., Baklanova, L. V., Krstić, S. S.,& Milosavljević, M. M.. (2017). Efficient two-frequency ultrasound extraction of beta-carotene from the fungus Blakeslea trispora. in Hemijska industrija, 71(4), 329-336.
https://doi.org/10.2298/HEMIND151110043A

Avdeenko AP, Belova EA, Dašić P, Konovalova SA, Baklanova LV, Krstić SS, Milosavljević MM. Efficient two-frequency ultrasound extraction of beta-carotene from the fungus Blakeslea trispora. in Hemijska industrija. 2017;71(4):329-336.
doi:10.2298/HEMIND151110043A .

Avdeenko, Anatoly P., Belova, Elena A., Dašić, Predrag, Konovalova, Svetlana A., Baklanova, Larisa V., Krstić, Sanja S., Milosavljević, Milutin M., "Efficient two-frequency ultrasound extraction of beta-carotene from the fungus Blakeslea trispora" in Hemijska industrija, 71, no. 4 (2017):329-336,
https://doi.org/10.2298/HEMIND151110043A . .