ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES
Authors
Karić, NatašaMaletić, Marina
Živojinović, Sara
Vukčević, Marija
Milošević, Milena
Trivunac, Katarina
Perić Grujić, Aleksandra
Conference object (Published version)
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Fly ash (FA) is an industrial waste material generated during coal combustion in thermal
power plants. In order to reuse this kind of industrial waste, and at the same time to reduce its
quantity, fly ash was used as a cheap material for the preparation of efficient adsorbents for the
removal of selected dyes from water. For that purpose, different modification methods were used to
obtain alkali-activated fly ash samples. The success of the modification process and characterization
of the unmodified and modified materials was monitored by Fourier transform infrared spectroscopy,
and scanning electron microscopy/energy dispersive spectroscopy. The adsorption properties of
examined samples were studied through the adsorption of methylene blue, crystal violet, alizarin red,
and methyl orange. All samples showed the highest adsorption efficiency for crystal violet removal,
while the sample modified with a combination of NaOH, Na2SiO3, and diatomaceous earth
(FA/geopolymer) was th...e most efficient adsorbent for all selected dyes. Therefore, the influence of
initial pH value and contact time on adsorption was examined for the adsorption of crystal violet
onto FA/geopolymer. It was found that alkaline modification improves the adsorption characteristics
of fly ash making it a promising candidate to solve the problem of colored wastewater.
Keywords:
Fly Ash / Dyes / Alkali Modification / AdsorptionSource:
Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023, 2023, 66-70Publisher:
- Belgrade : The Academy of Applied Technical Studies "Belgrade"
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200287 (Innovation Center of the Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200287)
- SIW4SE - Serbian Industrial Waste towards Sustainable Environment: Resource of Strategic Elements and Removal Agent for Pollutants (RS-ScienceFundRS-Ideje-7743343)
Collections
Institution/Community
Inovacioni centarTY - CONF AU - Karić, Nataša AU - Maletić, Marina AU - Živojinović, Sara AU - Vukčević, Marija AU - Milošević, Milena AU - Trivunac, Katarina AU - Perić Grujić, Aleksandra PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6997 AB - Fly ash (FA) is an industrial waste material generated during coal combustion in thermal power plants. In order to reuse this kind of industrial waste, and at the same time to reduce its quantity, fly ash was used as a cheap material for the preparation of efficient adsorbents for the removal of selected dyes from water. For that purpose, different modification methods were used to obtain alkali-activated fly ash samples. The success of the modification process and characterization of the unmodified and modified materials was monitored by Fourier transform infrared spectroscopy, and scanning electron microscopy/energy dispersive spectroscopy. The adsorption properties of examined samples were studied through the adsorption of methylene blue, crystal violet, alizarin red, and methyl orange. All samples showed the highest adsorption efficiency for crystal violet removal, while the sample modified with a combination of NaOH, Na2SiO3, and diatomaceous earth (FA/geopolymer) was the most efficient adsorbent for all selected dyes. Therefore, the influence of initial pH value and contact time on adsorption was examined for the adsorption of crystal violet onto FA/geopolymer. It was found that alkaline modification improves the adsorption characteristics of fly ash making it a promising candidate to solve the problem of colored wastewater. PB - Belgrade : The Academy of Applied Technical Studies "Belgrade" C3 - Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 T1 - ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES EP - 70 SP - 66 UR - https://hdl.handle.net/21.15107/rcub_technorep_6997 ER -
@conference{ author = "Karić, Nataša and Maletić, Marina and Živojinović, Sara and Vukčević, Marija and Milošević, Milena and Trivunac, Katarina and Perić Grujić, Aleksandra", year = "2023", abstract = "Fly ash (FA) is an industrial waste material generated during coal combustion in thermal power plants. In order to reuse this kind of industrial waste, and at the same time to reduce its quantity, fly ash was used as a cheap material for the preparation of efficient adsorbents for the removal of selected dyes from water. For that purpose, different modification methods were used to obtain alkali-activated fly ash samples. The success of the modification process and characterization of the unmodified and modified materials was monitored by Fourier transform infrared spectroscopy, and scanning electron microscopy/energy dispersive spectroscopy. The adsorption properties of examined samples were studied through the adsorption of methylene blue, crystal violet, alizarin red, and methyl orange. All samples showed the highest adsorption efficiency for crystal violet removal, while the sample modified with a combination of NaOH, Na2SiO3, and diatomaceous earth (FA/geopolymer) was the most efficient adsorbent for all selected dyes. Therefore, the influence of initial pH value and contact time on adsorption was examined for the adsorption of crystal violet onto FA/geopolymer. It was found that alkaline modification improves the adsorption characteristics of fly ash making it a promising candidate to solve the problem of colored wastewater.", publisher = "Belgrade : The Academy of Applied Technical Studies "Belgrade"", journal = "Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023", title = "ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES", pages = "70-66", url = "https://hdl.handle.net/21.15107/rcub_technorep_6997" }
Karić, N., Maletić, M., Živojinović, S., Vukčević, M., Milošević, M., Trivunac, K.,& Perić Grujić, A.. (2023). ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 Belgrade : The Academy of Applied Technical Studies "Belgrade"., 66-70. https://hdl.handle.net/21.15107/rcub_technorep_6997
Karić N, Maletić M, Živojinović S, Vukčević M, Milošević M, Trivunac K, Perić Grujić A. ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023. 2023;:66-70. https://hdl.handle.net/21.15107/rcub_technorep_6997 .
Karić, Nataša, Maletić, Marina, Živojinović, Sara, Vukčević, Marija, Milošević, Milena, Trivunac, Katarina, Perić Grujić, Aleksandra, "ALKALI MODIFICATION OF FLY ASH FOR ADSORPTION OF SELECTED DYES" in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 (2023):66-70, https://hdl.handle.net/21.15107/rcub_technorep_6997 .