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Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples

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2020
minerals-10-00753.pdf (6.382Mb)
Authors
Milićević, Sonja
Vlahović, Milica
Kragović, Milan
Martinović, Sanja
Milošević, Vladan
Jovanović, Ivana
Stojmenović, Marija
Article (Published version)
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Abstract
The intent in this paper is to define how the batch equilibrium results of copper removal from a synthetic solution on natural zeolite can be used for prediction of the breakthrough curves in the fixed-bed system for both a synthetic solution and wastewater. Natural zeolite from the Vranjska Banja deposit, Serbia, has been fully characterized (XRD, chemical composition, DTA/TG, SEM/EDS) as a clinoptilolite with cation exchange capacity of 146 meq/100 g. The maximum adsorption capacity (qm) in the batch of the mono-component system (synthetic copper solution) obtained using the Langmuir isotherm model was 7.30 and 6.10 mg/g for particle size below 0.043 and 0.6–0.8 mm, respectively. Using the flow-through system with the 0.6–0.8 mm zeolite fixed-bed, almost double the adsorption capacity (11.2–12.2 mg/g) has been achieved in a saturation point for the copper removal from the synthetic solution, compared to the batch. Better results are attributed to the constant high concentration gradi...ent in flow-through systems compared to the batch. The complex composition of wastewater and large amounts of earth alkaline metals disturb free adsorption sights on the zeolite surface. This results in a less effective adsorption in flow-through systems with adsorption capacity in breakthrough point of 5.84 mg/g (~0.95 × qm) and in a saturation point of 7.10 mg/g (~1.15 × qm).

Keywords:
zeolite / wastewater / heavy metals / batch / fixed-bed / adsorption capacity
Source:
Minerals, 2020, 10, 9, 753-
Publisher:
  • MDPI
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-200023)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)

DOI: 10.3390/min10090753

ISSN: 2075-163X

WoS: 000580670100001

Scopus: 2-s2.0-85090604119
[ Google Scholar ]
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3762
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Milićević, Sonja
AU  - Vlahović, Milica
AU  - Kragović, Milan
AU  - Martinović, Sanja
AU  - Milošević, Vladan
AU  - Jovanović, Ivana
AU  - Stojmenović, Marija
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3762
AB  - The intent in this paper is to define how the batch equilibrium results of copper removal from a synthetic solution on natural zeolite can be used for prediction of the breakthrough curves in the fixed-bed system for both a synthetic solution and wastewater. Natural zeolite from the Vranjska Banja deposit, Serbia, has been fully characterized (XRD, chemical composition, DTA/TG, SEM/EDS) as a clinoptilolite with cation exchange capacity of 146 meq/100 g. The maximum adsorption capacity (qm) in the batch of the mono-component system (synthetic copper solution) obtained using the Langmuir isotherm model was 7.30 and 6.10 mg/g for particle size below 0.043 and 0.6–0.8 mm, respectively. Using the flow-through system with the 0.6–0.8 mm zeolite fixed-bed, almost double the adsorption capacity (11.2–12.2 mg/g) has been achieved in a saturation point for the copper removal from the synthetic solution, compared to the batch. Better results are attributed to the constant high concentration gradient in flow-through systems compared to the batch. The complex composition of wastewater and large amounts of earth alkaline metals disturb free adsorption sights on the zeolite surface. This results in a less effective adsorption in flow-through systems with adsorption capacity in breakthrough point of 5.84 mg/g (~0.95 × qm) and in a saturation point of 7.10 mg/g (~1.15 × qm).
PB  - MDPI
T2  - Minerals
T1  - Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples
VL  - 10
IS  - 9
SP  - 753
DO  - 10.3390/min10090753
ER  - 
@article{
author = "Milićević, Sonja and Vlahović, Milica and Kragović, Milan and Martinović, Sanja and Milošević, Vladan and Jovanović, Ivana and Stojmenović, Marija",
year = "2020",
abstract = "The intent in this paper is to define how the batch equilibrium results of copper removal from a synthetic solution on natural zeolite can be used for prediction of the breakthrough curves in the fixed-bed system for both a synthetic solution and wastewater. Natural zeolite from the Vranjska Banja deposit, Serbia, has been fully characterized (XRD, chemical composition, DTA/TG, SEM/EDS) as a clinoptilolite with cation exchange capacity of 146 meq/100 g. The maximum adsorption capacity (qm) in the batch of the mono-component system (synthetic copper solution) obtained using the Langmuir isotherm model was 7.30 and 6.10 mg/g for particle size below 0.043 and 0.6–0.8 mm, respectively. Using the flow-through system with the 0.6–0.8 mm zeolite fixed-bed, almost double the adsorption capacity (11.2–12.2 mg/g) has been achieved in a saturation point for the copper removal from the synthetic solution, compared to the batch. Better results are attributed to the constant high concentration gradient in flow-through systems compared to the batch. The complex composition of wastewater and large amounts of earth alkaline metals disturb free adsorption sights on the zeolite surface. This results in a less effective adsorption in flow-through systems with adsorption capacity in breakthrough point of 5.84 mg/g (~0.95 × qm) and in a saturation point of 7.10 mg/g (~1.15 × qm).",
publisher = "MDPI",
journal = "Minerals",
title = "Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples",
volume = "10",
number = "9",
pages = "753",
doi = "10.3390/min10090753"
}
Milićević, S., Vlahović, M., Kragović, M., Martinović, S., Milošević, V., Jovanović, I.,& Stojmenović, M.. (2020). Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples. in Minerals
MDPI., 10(9), 753.
https://doi.org/10.3390/min10090753
Milićević S, Vlahović M, Kragović M, Martinović S, Milošević V, Jovanović I, Stojmenović M. Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples. in Minerals. 2020;10(9):753.
doi:10.3390/min10090753 .
Milićević, Sonja, Vlahović, Milica, Kragović, Milan, Martinović, Sanja, Milošević, Vladan, Jovanović, Ivana, Stojmenović, Marija, "Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples" in Minerals, 10, no. 9 (2020):753,
https://doi.org/10.3390/min10090753 . .

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