Removal of Copper from Mining Wastewater Using Natural Raw Material—Comparative Study between the Synthetic and Natural Wastewater Samples
Authors
Milićević, Sonja
Vlahović, Milica

Kragović, Milan

Martinović, Sanja

Milošević, Vladan

Jovanović, Ivana
Stojmenović, Marija

Article (Published version)
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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 capacitySource:
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
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IHTMTY - 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 . .