Comparative Study of Water and Milk Kefir Grains as Biopolymeric Adsorbents for Copper(II) and Arsenic(V) Removal from Aqueous Solutions

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dc.contributor.authorGyörgy, Balázscs
dc.contributor.authorBujdoš, Marekcs
dc.contributor.authorVojtková, Hanacs
dc.contributor.authorDiviš, Pavelcs
dc.contributor.authorSlaný, Michalcs
dc.contributor.authorMatúš, Petercs
dc.contributor.authorUrík, Martincs
dc.coverage.issue23cs
dc.coverage.volume16cs
dc.date.accessioned2025-06-11T11:56:22Z
dc.date.available2025-06-11T11:56:22Z
dc.date.issued2024-11-28cs
dc.description.abstractThis study investigates the biosorption capabilities of kefir grains, a polysaccharide-based byproduct of the fermentation process, for removing copper(II) and arsenic(V) from contaminated water. Unlike traditional heavy-metal removal methods, which are typically expensive and involve environmentally harmful chemicals, biopolymeric materials such as kefir grains provide a sustainable and cost-effective alternative for adsorbing hazardous inorganic pollutants from aqueous solutions. Our experimental results revealed significant differences in the sorption capacities of two types of kefir grains. Grains of milk kefir outperformed water kefir, particularly in copper(II) removal, achieving up to 95% efficiency at low copper concentrations (0.16 mmol<middle dot>L-1) and demonstrating a maximum sorption capacity of 49 mu mol<middle dot>g-1. In contrast, water kefir grains achieved only 35.5% maximum removal efficiency and exhibited lower sorption capacity. For arsenic(V) removal, milk kefir grains also showed superior performance, removing up to 56% of arsenic in diluted solution with experimental sorption capacities reaching up to 20 mu mol<middle dot>g-1, whereas water kefir grains achieved a maximum removal efficiency of 34.5%. However, these findings also suggest that while kefir grains show potential as low-cost biosorbents, further modifications are needed to enhance their competitiveness for large-scale water treatment applications.en
dc.formattextcs
dc.format.extent19cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2024, vol. 16, issue 23, 19 p.en
dc.identifier.doi10.3390/polym16233340cs
dc.identifier.issn2073-4360cs
dc.identifier.orcid0000-0001-6809-0506cs
dc.identifier.other193715cs
dc.identifier.researcheridA-6972-2016cs
dc.identifier.scopus12038939300cs
dc.identifier.urihttps://hdl.handle.net/11012/251919
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/16/23/3340cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbiopolymeren
dc.subjectbiosorptionen
dc.subjectheavy metalsen
dc.subjectpolysaccharideen
dc.subjectremediationen
dc.subjectwaste biomassen
dc.titleComparative Study of Water and Milk Kefir Grains as Biopolymeric Adsorbents for Copper(II) and Arsenic(V) Removal from Aqueous Solutionsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-193715en
sync.item.dbtypeVAVen
sync.item.insts2025.06.11 13:56:22en
sync.item.modts2025.06.11 13:32:58en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
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