Naslov
Influence of initial pH of solution on cadmium removal by natural and iron-modified zeolite

Autori
Ugrina, Marin ; Vukojević Medvidović, Nediljka ; Penava, Ines

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 5th Serbian-Croatian-Slovenian Symposium on Zeolites / Rajić N., Bronić J., Zabukovec-Logar N. - Beograd : Zeolitsko društvo Srbije, 2013, 76-79

ISBN
978-86-82139-41-6

Skup
5th Serbian-Croatian-Slovenian Symposium on Zeolites

Mjesto i datum
Zlatibor, Srbija, 30.05.2013. - 02.06.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
zeolite ; iron-modified zeolite ; cadmium removal ; ion exchange

Sažetak
The uptake of cadmium ions on natural zeolite (NZ) and iron-modified zeolite (IMZ) has been examined from aqueous cadmium solutions of different initial pH values. For both samples, the initial pH from acidic and slightly alkaline solutions tends to become neutral after cadmium uptake. The optimum pH range for cadmium uptake for both samples is pH=4-7. Up to pH=4, the competitive effect of H+ with Cd2+ is dominant, while at pH>7 the precipitation of cadmium hydroxide takes place. The obtained removal capacity for IMZ is three-to-four times higher then for NZ.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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