Naslov
Removal of Cd(II) and Zn(II) from binary aqueous solutions onto natural zeolite by the column process

Autori
Nuić, Ivona ; Trgo, Marina ; Vukojević Medvidović, Nediljka ; Ugrina, Marin

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

Izvornik
Book of abstracts of the Leaving the Ivory Tower Bridging the Gap between Academia, Industry, Services and Public Sector / Feierabend, M ; Drewnowski, J. ; Wójtowicz, P. - Wrocław : Wrocław University of Science and Technology, 2016, 243-244

ISBN
978-83-7493-936-2

Skup
8 th Eastern European Young Water Professionals Conference

Mjesto i datum
Gdańsk, Poljska, 11.05.2016. - 14.05.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Binary solution ; cadmium ; zinc ; natural zeolite ; column process

Sažetak
The uptake of cadmium and zinc ions from binary aqueous solutions with different Cd/Zn concentration ratios onto the fixed bed of natural zeolite clinoptilolite has been examined. Up to the breakthrough point, Cd and Zn ions bind simultaneously. After breakthrough, the complete overlapping in the total (Cd+Zn) concentration has been observed for Cd/Zn ratios of 0.14 and 1.07, while for Cd/Zn = 1.93 overshooting has been achieved. Although Cd and Zn have similar values of the hydrated ionic radius, electronegativity and energy of hydration, the displacement effect has taken place. The monitoring of pH values enables fast and reliable indication of the breakthrough point and the end of regeneration.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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