Change in metal removal degree during copper ion biosorption onto raw and calcined chicken eggshells

Marković, Miljan; Gorgievski, Milan; Grekulović, Vesna; Štrbac, Nada; Marković Jović, Marina; Božinović, Kristina; Zdravković, Milica

doi:10.5937/EcoTER26417M

Conference Object Open access M33

2026

Marković, Miljan
Gorgievski, Milan
Grekulović, Vesna
Štrbac, Nada
Marković Jović, Marina
Božinović, Kristina
Zdravković, Milica

University of Belgrade - Technical Faculty in Bor

Proceedings [Elektronski izvor] - 32nd International conference Ecological Truth & Environmental Research - EcoTER'26, Sokobanja, Serbia, 24-26 June 2026

417

421

English

M33 - Conference paper at an international conference, printed in full

Copper ion biosorption using raw and calcined chicken eggshells as biosorbents was conducted. The change in metal removal degree over time was monitored. Biosorption experiments were carried out in batch conditions for 90 minutes, as this duration is considered sufficient to reach equilibrium between phases. The experiments were conducted at three temperatures: 25 °C, 30 °C, and 35 °C. The results showed that the Cu2+ removal degree increased with time for both raw and calcined chicken eggshells. The results also indicated that system temperature significantly affects the efficiency of the biosorption process. Copper ion biosorption onto raw eggshells was considerably faster and more efficient, with a higher copper removal degree at higher temperatures. Biosorption onto calcined eggshells was less dependent on temperature, with Cu2+ removal being slightly faster at 35 °C, but the overall efficiency remained the same at all temperatures.

Ministry of Education, Science and Technological Development of the Republic of Serbia project 451-03-34/2026-03/200131

biosorption, metal removal degree, raw chicken eggshells, calcined chicken eggshells

DOI

10.5937/EcoTER26417M

ISBN

978-86-6305-171-3

URI

https://eco.tfbor.bg.ac.rs/download/Zbornici...
https://repozitorijum.tfbor.bg.ac.rs/handle/...

Scopus Web of Science OpenCitations OpenAlex

dc.creator	Marković, Miljan
dc.creator	Gorgievski, Milan
dc.creator	Grekulović, Vesna
dc.creator	Štrbac, Nada
dc.creator	Marković Jović, Marina
dc.creator	Božinović, Kristina
dc.creator	Zdravković, Milica
dc.title	Change in metal removal degree during copper ion biosorption onto raw and calcined chicken eggshells
dc.date.issued	2026
dc.publisher	University of Belgrade - Technical Faculty in Bor
dc.identifier.doi	10.5937/EcoTER26417M
dc.identifier.uri	https://eco.tfbor.bg.ac.rs/download/Zbornici/2026.pdf
dc.identifier.isbn	978-86-6305-171-3
dc.type	conferenceObject
dc.source	Proceedings [Elektronski izvor] - 32nd International conference Ecological Truth & Environmental Research - EcoTER'26, Sokobanja, Serbia, 24-26 June 2026
dc.citation.spage	417
dc.citation.epage	421
dc.language.iso	en
dc.type.version	publishedVersion
dc.citation.rank	M33
dc.subject	biosorption
dc.subject	metal removal degree
dc.subject	raw chicken eggshells
dc.subject	calcined chicken eggshells
dc.description.abstract	Copper ion biosorption using raw and calcined chicken eggshells as biosorbents was conducted. The change in metal removal degree over time was monitored. Biosorption experiments were carried out in batch conditions for 90 minutes, as this duration is considered sufficient to reach equilibrium between phases. The experiments were conducted at three temperatures: 25 °C, 30 °C, and 35 °C. The results showed that the Cu2+ removal degree increased with time for both raw and calcined chicken eggshells. The results also indicated that system temperature significantly affects the efficiency of the biosorption process. Copper ion biosorption onto raw eggshells was considerably faster and more efficient, with a higher copper removal degree at higher temperatures. Biosorption onto calcined eggshells was less dependent on temperature, with Cu2+ removal being slightly faster at 35 °C, but the overall efficiency remained the same at all temperatures.
dc.relation	Ministry of Education, Science and Technological Development of the Republic of Serbia project 451-03-34/2026-03/200131
dc.rights.license	CC-BY-NC-ND
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.accessioned	2026-10-23T09:02:52Z
dc.description.provenance	Submitted by mmarkovic@tfbor.bg.ac.rs on 2026-10-21 07:20:25.163855, with 2 file(s). Approved by Милица Ницуловић (mniculovic@tfbor.bg.ac.rs) on 2026-10-23T09:02:52Z.
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/6147
dc.identifier.fulltext	https://repozitorijum.tfbor.bg.ac.rs/bitstream?id=abfb1080-f77f-4a98-9e85-fe18ecfa3513


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