Naslov
COMPARISON OF RADON ADSORPTION ON HEMATITE AND ACTIVATED CARBON

Autori
Šmit, Goran ; Radolić, Vanja ; Miklavčić, Igor ; Poje Sovilj, Marina

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka 13. Simpozija Hrvatskog društva za zaštitu od zračenja / Petrinec, Branko ; Pavelić, Luka ; Popić, Jelena ; Kopjar, Nevenka - Zagreb : Hrvatsko društvo za zaštitu od zračenja, 2023, 131-131

Skup
13. Simpozij Hrvatskog društva za zaštitu od zračenja

Mjesto i datum
Poreč, Hrvatska, 18.04.2023. - 21.04.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
radon, hematite, activated carbon, adsorption

Sažetak
Radon is a gas without color, taste and smell from the group of noble gases, so it is chemically almost completely inert. However, radon is also a radioactive gas which makes it dangerous to health if it accumulates in spaces that people use for work and stay. Increased radon concentrations are attempted to be reduced by airing and adsorption on suitable adsorbents such as activated carbon, i.e. more recently silica-gel and various forms of zeolite. The aim of this study was to investigate the properties of hematite (α-Fe2O3) as an adsorbent for radon in the air as well as the properties of activated carbon in the same conditions (Figure 1). The results were analyzed using models of adsorption isotherms (Langmuir, Freundlich, Temkin and Dubinin-Radushkevich) and adsorption kinetics (pseudo-first order, pseudo- second order, intra-particle diffusion and Elovich). Hematite has been shown to have very similar characteristics in radon adsorption compared to activated carbon, but a more significant efficiency over a longer period of time which is 97% versus 56% on activated carbon. Based on the results obtained, it can be concluded that hematite is also a possible effective radon adsorbent in the air.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA