Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates
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2019
Authors
Savić, Andrija B.
Čokeša, Đuro

Savić-Biserčić, Marjetka

Janković-Častvan, Ivona

Petrović, Rada
Živković, Ljiljana

Article (Published version)

© 2019 The Society of Powder Technology Japan
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Natural filtration material tuff (T) was modified by coating with nano-sized magnetite. The grain fraction of 0.6–1.9 mm was submitted to hydrothermal synthesis of magnetite. Thus formed magnetite modified tuff (MMT) was characterized in terms of Fe-content, N2 adsorption- desorption isotherm, SEM, zeta potential-pH analyses and adsorption behavior towards phosphates/arsenates in batch and column conditions. Elemental analysis showed that 36.54 mg g−1 of magnetite was attached to the porous tuff grains. This modification changed pore structure and specific surface area. An increase of cca 35% in Sp value was obtained. Batch experiments proved that MMT was 4-5 times more efficient in removal of phosphates/arsenates than non-modified T. The maximum sorption capacities of phosphates calculated based on Langmuir equation were 0.45 and 1.91 mg g−1, while those for arsenate were 0.551 m g−1 and 2.36 mg g−1 for T and MMT, respectively. The intra-particle diffusion model was the most suited fo...r describing the adsorption process of phosphate and arsenate onto MMT. Fixed-bed column data corroborated batch results, i.e. MMT was 6 times superior in contaminant adsorption than T. Modification with magnetite improved T potential for usage in water treatment applications: its filtration ability remained unchanged, while adsorption capacity for phosphates/arsenates removal was improved. © 2019 The Society of Powder Technology Japan
Keywords:
Tuff / Magnetite / Arsenate / Phosphate / AdsorptionSource:
Advanced Powder Technology, 2019, 30, 8, 1687-1695Funding / projects:
- Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
DOI: 10.1016/j.apt.2019.05.020
ISSN: 0921-8831; 1568-5527
WoS: 000471847800030
Scopus: 2-s2.0-85066492267
URI
https://linkinghub.elsevier.com/retrieve/pii/S0921883119301529https://vinar.vin.bg.ac.rs/handle/123456789/8221
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VinčaTY - JOUR AU - Savić, Andrija B. AU - Čokeša, Đuro AU - Savić-Biserčić, Marjetka AU - Janković-Častvan, Ivona AU - Petrović, Rada AU - Živković, Ljiljana PY - 2019 UR - https://linkinghub.elsevier.com/retrieve/pii/S0921883119301529 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8221 AB - Natural filtration material tuff (T) was modified by coating with nano-sized magnetite. The grain fraction of 0.6–1.9 mm was submitted to hydrothermal synthesis of magnetite. Thus formed magnetite modified tuff (MMT) was characterized in terms of Fe-content, N2 adsorption- desorption isotherm, SEM, zeta potential-pH analyses and adsorption behavior towards phosphates/arsenates in batch and column conditions. Elemental analysis showed that 36.54 mg g−1 of magnetite was attached to the porous tuff grains. This modification changed pore structure and specific surface area. An increase of cca 35% in Sp value was obtained. Batch experiments proved that MMT was 4-5 times more efficient in removal of phosphates/arsenates than non-modified T. The maximum sorption capacities of phosphates calculated based on Langmuir equation were 0.45 and 1.91 mg g−1, while those for arsenate were 0.551 m g−1 and 2.36 mg g−1 for T and MMT, respectively. The intra-particle diffusion model was the most suited for describing the adsorption process of phosphate and arsenate onto MMT. Fixed-bed column data corroborated batch results, i.e. MMT was 6 times superior in contaminant adsorption than T. Modification with magnetite improved T potential for usage in water treatment applications: its filtration ability remained unchanged, while adsorption capacity for phosphates/arsenates removal was improved. © 2019 The Society of Powder Technology Japan T2 - Advanced Powder Technology T1 - Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates VL - 30 IS - 8 SP - 1687 EP - 1695 DO - 10.1016/j.apt.2019.05.020 ER -
@article{ author = "Savić, Andrija B. and Čokeša, Đuro and Savić-Biserčić, Marjetka and Janković-Častvan, Ivona and Petrović, Rada and Živković, Ljiljana", year = "2019", abstract = "Natural filtration material tuff (T) was modified by coating with nano-sized magnetite. The grain fraction of 0.6–1.9 mm was submitted to hydrothermal synthesis of magnetite. Thus formed magnetite modified tuff (MMT) was characterized in terms of Fe-content, N2 adsorption- desorption isotherm, SEM, zeta potential-pH analyses and adsorption behavior towards phosphates/arsenates in batch and column conditions. Elemental analysis showed that 36.54 mg g−1 of magnetite was attached to the porous tuff grains. This modification changed pore structure and specific surface area. An increase of cca 35% in Sp value was obtained. Batch experiments proved that MMT was 4-5 times more efficient in removal of phosphates/arsenates than non-modified T. The maximum sorption capacities of phosphates calculated based on Langmuir equation were 0.45 and 1.91 mg g−1, while those for arsenate were 0.551 m g−1 and 2.36 mg g−1 for T and MMT, respectively. The intra-particle diffusion model was the most suited for describing the adsorption process of phosphate and arsenate onto MMT. Fixed-bed column data corroborated batch results, i.e. MMT was 6 times superior in contaminant adsorption than T. Modification with magnetite improved T potential for usage in water treatment applications: its filtration ability remained unchanged, while adsorption capacity for phosphates/arsenates removal was improved. © 2019 The Society of Powder Technology Japan", journal = "Advanced Powder Technology", title = "Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates", volume = "30", number = "8", pages = "1687-1695", doi = "10.1016/j.apt.2019.05.020" }
Savić, A. B., Čokeša, Đ., Savić-Biserčić, M., Janković-Častvan, I., Petrović, R.,& Živković, L.. (2019). Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates. in Advanced Powder Technology, 30(8), 1687-1695. https://doi.org/10.1016/j.apt.2019.05.020
Savić AB, Čokeša Đ, Savić-Biserčić M, Janković-Častvan I, Petrović R, Živković L. Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates. in Advanced Powder Technology. 2019;30(8):1687-1695. doi:10.1016/j.apt.2019.05.020 .
Savić, Andrija B., Čokeša, Đuro, Savić-Biserčić, Marjetka, Janković-Častvan, Ivona, Petrović, Rada, Živković, Ljiljana, "Multifunctional use of magnetite-coated tuff grains in water treatment: Removal of arsenates and phosphates" in Advanced Powder Technology, 30, no. 8 (2019):1687-1695, https://doi.org/10.1016/j.apt.2019.05.020 . .