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Kinetics and Mechanism of Cyanobacteria Cell Removal Using Biowaste-Derived Activated Carbons with Assessment of Potential Human Health Impacts.
Kandic, Irina; Kragovic, Milan; Zivkovic, Sanja; Knezevic, Jelena; Vuletic, Stefana; Cvetkovic, Stefana; Stojmenovic, Marija.
Afiliación
  • Kandic I; "Vinca" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia.
  • Kragovic M; "Vinca" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia.
  • Zivkovic S; "Vinca" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia.
  • Knezevic J; Institute of Public Health of Serbia "Dr. Milan Jovanovic Batut", dr Subotica Starijeg 5, 11000 Belgrade, Serbia.
  • Vuletic S; Department of Microbiology, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia.
  • Cvetkovic S; Department of Microbiology, Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia.
  • Stojmenovic M; "Vinca" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia.
Toxins (Basel) ; 16(7)2024 Jul 09.
Article en En | MEDLINE | ID: mdl-39057950
ABSTRACT
Harmful cyanobacteria blooms and the escalating impact of cyanotoxins necessitates the effective removal of cyanobacteria from water ecosystems before they release cyanotoxins. In this study, cyanobacteria removal from water samples taken from the eutrophic Aleksandrovac Lake (southern Serbia) was investigated. For that purpose, novel activated carbons derived from waste biomass-date palm leaf stalk (P_AC), black alder cone-like flowers (A_AC), and commercial activated carbon from coconut shell (C_AC) as a reference were used. To define the best adsorption conditions and explain the adsorption mechanism, the influence of contact time, reaction volume, and adsorbent mass, as well as FTIR analysis of the adsorbents before and after cyanobacteria removal, were studied. The removal efficiency of P_AC and A_AC achieved for the applied concentration of 10 mg/mL after 15 min was ~99%, while for C_AC after 24 h was only ~92% for the same concentration. To check the safety of the applied materials for human health and the environment, the concentrations of potentially toxic elements (PTEs), the health impact (HI) after water purification, and the toxicity (MTT and Comet assay) of the materials were evaluated. Although the P_AC and A_AC achieved much better removal properties in comparison with the C_AC, considering the demonstrated genotoxicity and cytotoxicity of the P_AC and the higher HI value for the C_AC, only the A_AC was further investigated. Results of the kinetics, FTIR analysis, and examination of the A_AC mass influence on removal efficiency indicated dominance of the physisorption mechanism. Initially, the findings highlighted the superior performance of A_AC, with great potential to be globally commercialized as an effective cyanobacteria cell adsorbent.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbón Orgánico / Cianobacterias Límite: Humans País/Región como asunto: Europa Idioma: En Revista: Toxins (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbón Orgánico / Cianobacterias Límite: Humans País/Región como asunto: Europa Idioma: En Revista: Toxins (Basel) Año: 2024 Tipo del documento: Article Pais de publicación: Suiza