Pregled bibliografske jedinice broj: 1111491
Comparative study of mercury(II) removal onto natural and iron-modified zeolite
Comparative study of mercury(II) removal onto natural and iron-modified zeolite // Proceedings of the 18th Ružička Days "Today Science - Tomorrow Industry" / Jukić, A. ; Ocelić Bulatović, V. ; Kučić Grčić, D. (ur.).
Zagreb : Osijek: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2021. str. 257-265 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Comparative study of mercury(II) removal onto
natural and iron-modified zeolite
Autori
Ugrina, Marin ; Čeru, Teja ; Nuić, Ivona ; Trgo, Marina ; Prnjak, Petra ; Gaberšek, Martin ; Miler, Miloš ; Gosar, Mateja
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 18th Ružička Days "Today Science - Tomorrow Industry"
/ Jukić, A. ; Ocelić Bulatović, V. ; Kučić Grčić, D. - Zagreb : Osijek : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2021, 257-265
Skup
18. Ružičkini dani "Danas znanost - sutra industrija"
Mjesto i datum
Vukovar, Hrvatska, 16.09.2020. - 18.09.2020
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
natural zeolite, iron-modified zeolite, mercury(II), sorption, leaching
Sažetak
This paper compares the sorption abilities of natural (NZ) and iron-modified zeolite (FeZ) for removal of mercury(II) ions from aqueous solutions. The influence of pH, initial concentration, solid/liquid ratio and contact time on the sorption efficiency of both sorbent materials was investigated. At the optimal pH=2, the maximum amount of sorbed mercury(II) on the NZ was 0.28 mmol/g and 0.54 mmol/g on the FeZ. It has been observed that a minimum contact time of 600 minutes is required to achieve the maximum sorption capacity for both sorbents. The results showed that the FeZ has a better sorption ability compared to the NZ. The leaching of mercury from saturated sorbents was examined according to the standard leaching method DIN 38414. In a wide pH range, 4.01≤pH≤11.08, the leaching of mercury(II) was observed in the amount of only 0.28 %–0.78 % from NZ and 0.07 %–0.51 % from FeZ. At extreme pH conditions, pH≤3.02 and pH≥12.05, leaching of mercury(II) in an amount of 4–7 % occurs on both sorbents. In conclusion, both sorbent materials could be used for remediation purposes but modification significantly improves the sorption properties of zeolite.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
Napomena
This paper has been financially supported by
the bilateral Croatian-Slovenian project
“Natural modified sorbents as materials for
remediation of mercury contaminated
environment” (2020-2023) and the research
programmes “Groundwater and Geochemistry (P1-
0020)” and “Mineral Resources (P1-0025)”
carried out by the Geological Survey of
Slovenia.
