Adsorption Characteristics of Different Adsorbents and Iron(III) Salt for Removing As(V) from Water (CROSBI ID 224348)
Prilog u časopisu | kratko priopćenje | međunarodna recenzija
Podaci o odgovornosti
Ćurko, Josip ; Matošić, Marin ; Crnek, Vlado ; Stulić, Višnja ; Mijatović, Ivan
engleski
Adsorption Characteristics of Different Adsorbents and Iron(III) Salt for Removing As(V) from Water
The aim of this study was to determine adsorption performance of two adsorbents for removal of As(V) from water: Bayoxide® E33 (granular ferric oxide), Titansorb® (granular titanium oxide) and a suspension of precipitated iron(III) hydroxide. Results on As(V) adsorption stoichiometry for two adsorbents and precipitated iron(III) hydroxide in tap and demineralized water were fitted to Freundlich and Langmuir adsorption isotherm equations, from which adsorption constants and adsorption capacity were calculated. The separation factor RL for the three adsorbents ranged from 0.04 to 0.61, indicating effective adsorption. Precipitated iron(III) hydroxide showed the greatest capacity for adsorbing As(V), while Titansorb showed the lowest. Comparison of adsorption from tap or demineralized water showed that Bayoxide and precipitated iron(III) hydroxide had higher adsorption capacity in demineralized water, whereas Titansorb showed a slightly higher capacity in tap water. These results provide mechanistic insights into how commonly used adsorbents remove As(V) from water.
Arsenic removal ; drinking water ; adsorption
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Podaci o izdanju
54 (2)
2016.
250-255
objavljeno
1330-9862
10.17113/ft b.54.02.16.4064
Povezanost rada
Biotehnologija, Prehrambena tehnologija