The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide
Authors
Živanić, JankoBugarčić, Mladen

Antanasković, Anja

Lopičić, Zorica

Sokić, Miroslav

Jovanović, Aleksandar

Milivojević, Milan
Contributors
Sokić, MiroslavMarković, Branislav
Manojlović, Vaso
Conference object (Published version)

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The presence of arsenic in drinking water above the permissible limits is one of the current problems facing modern
engineers in the field of separations and it has not yet been satisfactorily resolved, because the permissible concentrations
of arsenic in drinking water are constantly reduced by the World Health Organization (WHO). Among the various
processes for arsenic removal, adsorption has a special place as one of the most efficient and cheap process. Many natural
and artificial materials are tested for adsorption processes, and adsorption on metal powders is particularly interesting
because they represent adsorbents with fast kinetics and relatively high adsorption capacities. However, the application
of powder adsorbents is difficult due to their separation from the mixture after adsorption. In order to solve that problem,
metal powders may be immobilized into particles obtained by gelling natural polymers. In this way, it is easier to separate
the adsorbent from the mi...xture, however this must be achieved without losing the adsorption capacity and rate compared
to pure metal powders.
In this study, the use of metal oxide (iron oxide nanoparticles) immobilized within the alginate gel showed good potential
for arsenic (V) ions removal. The obtained results showed that arsenic adsorption by obtained composite has fast kinetic,
following pseudo-second-order model, and that it is conducted in several steps, according to the Weber-Morris model. It
was suggested that external diffusion is the dominant mechanism at the beginning of the arsenic adsorption, followed by
intraparticle diffusion. The obtained results confirmed that gelling with alginate did not significantly affect the adsorption
process, that is, it does not interfere with the adsorption capacity of metal oxides, which is a very important factor. Arsenic
(V) removal was successfully performed using the investigated composite.
Keywords:
arsenic (V) removal / alginate / goethite / nanoparticles / compositeSource:
5th Metallurgical & Materials Engineering Congress of South-East Europe, 2023, 365-370Publisher:
- Belgrade : Association of Metallurgical Engineers of Serbia
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. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)
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Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Živanić, Janko AU - Bugarčić, Mladen AU - Antanasković, Anja AU - Lopičić, Zorica AU - Sokić, Miroslav AU - Jovanović, Aleksandar AU - Milivojević, Milan PY - 2023 UR - https://ritnms.itnms.ac.rs/handle/123456789/1036 AB - The presence of arsenic in drinking water above the permissible limits is one of the current problems facing modern engineers in the field of separations and it has not yet been satisfactorily resolved, because the permissible concentrations of arsenic in drinking water are constantly reduced by the World Health Organization (WHO). Among the various processes for arsenic removal, adsorption has a special place as one of the most efficient and cheap process. Many natural and artificial materials are tested for adsorption processes, and adsorption on metal powders is particularly interesting because they represent adsorbents with fast kinetics and relatively high adsorption capacities. However, the application of powder adsorbents is difficult due to their separation from the mixture after adsorption. In order to solve that problem, metal powders may be immobilized into particles obtained by gelling natural polymers. In this way, it is easier to separate the adsorbent from the mixture, however this must be achieved without losing the adsorption capacity and rate compared to pure metal powders. In this study, the use of metal oxide (iron oxide nanoparticles) immobilized within the alginate gel showed good potential for arsenic (V) ions removal. The obtained results showed that arsenic adsorption by obtained composite has fast kinetic, following pseudo-second-order model, and that it is conducted in several steps, according to the Weber-Morris model. It was suggested that external diffusion is the dominant mechanism at the beginning of the arsenic adsorption, followed by intraparticle diffusion. The obtained results confirmed that gelling with alginate did not significantly affect the adsorption process, that is, it does not interfere with the adsorption capacity of metal oxides, which is a very important factor. Arsenic (V) removal was successfully performed using the investigated composite. PB - Belgrade : Association of Metallurgical Engineers of Serbia C3 - 5th Metallurgical & Materials Engineering Congress of South-East Europe T1 - The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide EP - 370 SP - 365 ER -
@conference{ author = "Živanić, Janko and Bugarčić, Mladen and Antanasković, Anja and Lopičić, Zorica and Sokić, Miroslav and Jovanović, Aleksandar and Milivojević, Milan", year = "2023", abstract = "The presence of arsenic in drinking water above the permissible limits is one of the current problems facing modern engineers in the field of separations and it has not yet been satisfactorily resolved, because the permissible concentrations of arsenic in drinking water are constantly reduced by the World Health Organization (WHO). Among the various processes for arsenic removal, adsorption has a special place as one of the most efficient and cheap process. Many natural and artificial materials are tested for adsorption processes, and adsorption on metal powders is particularly interesting because they represent adsorbents with fast kinetics and relatively high adsorption capacities. However, the application of powder adsorbents is difficult due to their separation from the mixture after adsorption. In order to solve that problem, metal powders may be immobilized into particles obtained by gelling natural polymers. In this way, it is easier to separate the adsorbent from the mixture, however this must be achieved without losing the adsorption capacity and rate compared to pure metal powders. In this study, the use of metal oxide (iron oxide nanoparticles) immobilized within the alginate gel showed good potential for arsenic (V) ions removal. The obtained results showed that arsenic adsorption by obtained composite has fast kinetic, following pseudo-second-order model, and that it is conducted in several steps, according to the Weber-Morris model. It was suggested that external diffusion is the dominant mechanism at the beginning of the arsenic adsorption, followed by intraparticle diffusion. The obtained results confirmed that gelling with alginate did not significantly affect the adsorption process, that is, it does not interfere with the adsorption capacity of metal oxides, which is a very important factor. Arsenic (V) removal was successfully performed using the investigated composite.", publisher = "Belgrade : Association of Metallurgical Engineers of Serbia", journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe", title = "The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide", pages = "370-365" }
Živanić, J., Bugarčić, M., Antanasković, A., Lopičić, Z., Sokić, M., Jovanović, A.,& Milivojević, M.. (2023). The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide. in 5th Metallurgical & Materials Engineering Congress of South-East Europe Belgrade : Association of Metallurgical Engineers of Serbia., 365-370.
Živanić J, Bugarčić M, Antanasković A, Lopičić Z, Sokić M, Jovanović A, Milivojević M. The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:365-370..
Živanić, Janko, Bugarčić, Mladen, Antanasković, Anja, Lopičić, Zorica, Sokić, Miroslav, Jovanović, Aleksandar, Milivojević, Milan, "The adsorption of arsenic(v) ions from aqueous solutions by composite of natural polymer and metal oxide" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):365-370.