petak, 20 okt 2017

Original scientific paper
UDC: 502.51:504.5:669.35
DOI: 10.7251/afts.2015.0712.059B
COBISS. RS-ID 4988952


Bekényiová Alexandra1, Štyriaková Iveta1, Danková Zuzana2
1Department of Biotechnology, Institute of Geotechnics of the Slovak Academy of Sciences, Košice, Slovakia, E.mail: Ova adresa el. pošte zaštićena je od spam napada, treba omogućiti JavaSkript da biste je videli
2Departmentof Physical and physicochemical mineral processing methods, Institute of Geotechnics of
the Slovak Academy of Sciences, Košice, Slovakia

ABSTRACT  Full text (pdf)

In the present work, the abilities of natural and synthetic samples of goethite and hematiteto remove copper Cu(II) ) and zinc Zn(II) ions from aqueous solutions were compared.Batch adsorption experiments were performed in order to evaluate the removal efficiency of iron oxide samples. The effect of initial metal ion concentration, initial pH and time on adsorption of copper and zinc onto the iron oxides has been studied.  The sorption data were represented by the linearized Langmuir model. Comparing the values of adsorption capacities, there were differences between the natural and synthetic samples, natural and synthetic goethite had higher sorption capacity for both metals than hematite. The copper ions showed higher affinity than zinc ions to all samples.
Key words: sorption, copper, zinc, goethite, hematite


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