Naslov
Copper removal from aqueous solution using natural zeolite and antibacterial activity of the copper-loaded zeolite

Autori
Milenković, Jelena ; Hrenović, Jasna ; Stojaković, Đorđe ; Rajić, Nevenka

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

Izvornik
Proceedings of the 4. Slovenian-Croatian Symposium on Zeolites / Antonić Jelić, Tatjana - Zagreb : Hrvatska zeolitna udruga (HZU), 2011, 89-92

ISBN
978-953-55373-3-5

Skup
4. Slovenian-Croatian Symposium on Zeolites

Mjesto i datum
Ljubljana, Slovenija, 17.10.2011. - 18.10.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
natural zeolite; copper removal; antibacterial activity; Freundlich isotherm; kinetics

Sažetak
The natural zeolite (Zlatokop mine, Serbia) is quite effective in removal of copper (II) ions from aqueous solutions, the sorption capacity at 298 K varies from 18.6 to 37.6 % for C0 = 100 and 400 mg Cu dm–3, respectively. The sorption isotherm is in accord only with the Freundlich model, a nonlinear equilibrium distribution relationship existing between the fluid and solid phases. The sorption kinetics is the best described by the pseudo-second-order model. Intra-particle diffusion of Cu2+ is present in the sorption process, but it is not the rate-limiting step. The copper-loaded zeolite exhibits an excellent antibacterial activity towards Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria, suggesting that it could be a promising material in a final step of wastewater treatment.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA