Naslov
Adsorption of Diclofenac onto Activated Carbon

Autori
Stjepanović, Marija ; Matanović, Katarina ; Tomac, Ivana ; Jakobek, Lidija ; Habuda-Stanić, Mirna

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

Izvornik
Knjiga sažetaka = Book of Abstracts / Habuda-Stanić, Mirna - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2022, 85-85

ISBN
978-953-7005-85-6

Skup
9. međunarodni znanstveno-stručni skup: Voda za sve = 9th International Scientific and Professional Conference: Water for all

Mjesto i datum
Osijek, Hrvatska, 19.05.2022. - 20.05.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
diclofenac ; adsorption , activated carbon ; drinking water ; wastewater

Sažetak
Recently, the presence of pharmaceutical contaminants in water bodies and their potential negative impact on the ecosystem gained much attention. The usage of pharmaceutical compounds by consumers follows an increasing trend, and their incomplete removal during wastewater treatment results in contamination of water surfaces. The methods used to remove DCF from water, among others, include adsorption. Therefore, the adsorption of diclofenac on modified activated carbon produced from hazelnut shells and modified and unmodified Cullar (a commercial product) from water solutions in batch processes was investigated. The adsorbent material was characterised by FTIR and the zeta- potential was measured, as well as the pHpzc was determined. The effect of pH on the adsorption capacity was evaluated in the range of 2-10 and the adsorption mechanism was described by isothermal and kinetic studies. According to obtained data, the maximum adsorption uptake of 48.7 mg/g was achieved with modified Cullar. The isotherm data were in good agreement with both, Freundlich and Langmuir isotherm models. In order to describe adsorption mechanisms, kinetic models were also calculated. Adsorption kinetics followed the pseudo-second- order model closely. Activated carbon from hazelnut shells proved to be an effective adsorbent for diclofenac removal.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti, Kemijsko inženjerstvo, Prehrambena tehnologija

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