Naslov
Equilibrium Studies of Cobalt Ions Removal Using Fly Ash Class F

Autori
Mužek, Mario Nikola ; Jelović, Martina ; Svilović, Sandra ; Zelić, Jelica

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

Izvornik
Proceedings Eurasia Waste Management Symposium 2014 / Sinan Bilgili, M. - Istanbul : Yildiz Technical University, 2014, 666-672

Skup
Eurasia Waste Management Symposium 2014

Mjesto i datum
Istanbul, Turska, 28.04.2014. - 30.04.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cobalt ; fly ash class F ; isotherms ; reactor design

Sažetak
Heavy metals exposure, even at trace level, may damage human health, so the importance of heavy metal removal from wastewaters is still major and challenging task for environmental engineers. Nowadays, numerous methods have been proposed for efficient heavy metal removal from waters including chemical precipitation, ion exchange, adsorption, membrane filtration and electrochemical technologies. For that reason, a class F fly ash from the Croatian power plant Plomin 2 has been additionally grinded for activation and used for the sorptive removal of cobalt ions from aqueous solutions by a batch technique. The experimental data were obtained at constant temperature (298 K) and adsorbent particle size (< 45 μm) for the different initial concentrations of cobalt solutions. Various types of isotherm models, two-parameter isotherms: Langmuir, Freundlich, Jovanovic, and Temkin ; three-parameter isotherms: Radke-Prausnitz, Hill and Toth, and four-parameter isotherms: Fritz-Schlunder and Baudu, were fitted to the experimental data obtained, and their goodness-of-fit were compared. In order to calculate parameters of the isotherms a non-linear regression method was used. According to the results obtained the most appropriate model for describing equilibrium data was Jovanovic isotherm model, and for that reason this isotherm was combined with reactor model for batch reactor design.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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