Walnut shells as a potential biosorbent for Cu(II), Pb(II) and As(III)/(V) ions removal from river waters
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Date
2023
Authors
Nujkić, Maja
Tasić, Žaklina
Medić, Dragana
Milić, Snežana
Stanković, Sonja
Journal Title
Journal ISSN
Volume Title
Publisher
University of Novi Sad, Faculty of Technology
Source
Acta Periodica Technologica
Volume
54
Issue
Abstract
In this study, the potential of the walnut shell as a biosorbent for biosorption of Cu(II), Pb(II), and As(III)/(V) ions from river water samples was investigated. The effects of various conditions of water samples such as the initial ion concentration, sample pH, and contact time at a constant tempe-rature and biosorbent dosage, on biosorption of Cu(II), Pb(II), and As(III)/(V) were investigated. Walnut shells, as the material with a high potential for removal of investigated ions, have biosorption efficiency of up to 99.6%, under the applied experimental conditions. The best adsorption time was obtained at 4 h for Cu(II), Pb(II), and As(III)/(V) ions. The maximum removal of 97.6% (Cu(II)), 82.9% (Pb(II)), and 99.6% (As(III)/(V)) was obtained at pH=4.43, pH=8.55, and pH=7.84, respecti-vely. Hence, the walnut shell shows potential of a cost-effective biosorbent that could be used for the treatment of contaminated rivers. However, further investigation is needed to fully explore this po-tential.
Description
Keywords
biosorption, walnut shell, metal/oids, natural material, wastewater
Citation
DOI
10.2298/APT2354187N
Scopus
ISSN
1450-7188
ISBN
License
CC-BY-NC-ND