In present paper, the influence of the initial pH and concentration of Pb2+ on its adsorption by the natural (NZA) and Fe(III)-modified zeolite-alginate beads (FeA) was studied. Results showed that modification of the starting materials have a positive effect on their adsorption capacities (102 and 136 mg/g for the NZA and FeA, respectively). After encapsulation, the mechanism of lead adsorption by both adsorbents was changed and ion exchange dominates. The best adsorption was achieved for initial pH > 3.8. Cation exchange capacity, structural properties, and hydrophobicity of samples were also determined, and the presence of the alginate has no significant influence on investigated properties of samples. Experiments on wastewater from tailings of lead and zinc mine Grot, Serbia, showed that after treatment with both adsorbents, the content of the most abundant heavy metals (Pb, Zn, Hg, and Mn) significantly decreased.
Keywords:
zeolite-alginate composite / tailings wastewater / pH / lead / isotherms / ion exchange / heavy metals / alginate
TY - JOUR
AU - Kragović, Milan
AU - Pasalić, Snežana
AU - Marković, Marija
AU - Petrović, Marija
AU - Nedeljković, Blagoje
AU - Momcilović, Miloš
AU - Stojmenović, Marija
PY - 2018
UR - https://ritnms.itnms.ac.rs/handle/123456789/461
AB - In present paper, the influence of the initial pH and concentration of Pb2+ on its adsorption by the natural (NZA) and Fe(III)-modified zeolite-alginate beads (FeA) was studied. Results showed that modification of the starting materials have a positive effect on their adsorption capacities (102 and 136 mg/g for the NZA and FeA, respectively). After encapsulation, the mechanism of lead adsorption by both adsorbents was changed and ion exchange dominates. The best adsorption was achieved for initial pH > 3.8. Cation exchange capacity, structural properties, and hydrophobicity of samples were also determined, and the presence of the alginate has no significant influence on investigated properties of samples. Experiments on wastewater from tailings of lead and zinc mine Grot, Serbia, showed that after treatment with both adsorbents, the content of the most abundant heavy metals (Pb, Zn, Hg, and Mn) significantly decreased.
PB - MDPI, Basel
T2 - Minerals
T1 - Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions
IS - 1
VL - 8
DO - 10.3390/min8010011
UR - conv_817
ER -
@article{
author = "Kragović, Milan and Pasalić, Snežana and Marković, Marija and Petrović, Marija and Nedeljković, Blagoje and Momcilović, Miloš and Stojmenović, Marija",
year = "2018",
abstract = "In present paper, the influence of the initial pH and concentration of Pb2+ on its adsorption by the natural (NZA) and Fe(III)-modified zeolite-alginate beads (FeA) was studied. Results showed that modification of the starting materials have a positive effect on their adsorption capacities (102 and 136 mg/g for the NZA and FeA, respectively). After encapsulation, the mechanism of lead adsorption by both adsorbents was changed and ion exchange dominates. The best adsorption was achieved for initial pH > 3.8. Cation exchange capacity, structural properties, and hydrophobicity of samples were also determined, and the presence of the alginate has no significant influence on investigated properties of samples. Experiments on wastewater from tailings of lead and zinc mine Grot, Serbia, showed that after treatment with both adsorbents, the content of the most abundant heavy metals (Pb, Zn, Hg, and Mn) significantly decreased.",
publisher = "MDPI, Basel",
journal = "Minerals",
title = "Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions",
number = "1",
volume = "8",
doi = "10.3390/min8010011",
url = "conv_817"
}
Kragović, M., Pasalić, S., Marković, M., Petrović, M., Nedeljković, B., Momcilović, M.,& Stojmenović, M.. (2018). Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions. in Minerals
MDPI, Basel., 8(1).
https://doi.org/10.3390/min8010011
conv_817
Kragović M, Pasalić S, Marković M, Petrović M, Nedeljković B, Momcilović M, Stojmenović M. Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions. in Minerals. 2018;8(1).
doi:10.3390/min8010011
conv_817 .
Kragović, Milan, Pasalić, Snežana, Marković, Marija, Petrović, Marija, Nedeljković, Blagoje, Momcilović, Miloš, Stojmenović, Marija, "Natural and Modified Zeolite-Alginate Composites. Application for Removal of Heavy Metal Cations from Contaminated Water Solutions" in Minerals, 8, no. 1 (2018),
https://doi.org/10.3390/min8010011 .,
conv_817 .
