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Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms

The effect of calcium carbonate on the removal efficiency of cations of the selected heavy metals Cu, Zn and Pb from aqueous solutions using various biosorbents (BS) was investigated under laboratory static conditions. The main mechanism of biosorption of heavy metal cations is ion exchange, whereas...

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Autores principales: Wierzba, Sławomir, Makuchowska-Fryc, Joanna, Kłos, Andrzej, Ziembik, Zbigniew, Ochędzan-Siodłak, Wioletta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9587271/
https://www.ncbi.nlm.nih.gov/pubmed/36271239
http://dx.doi.org/10.1038/s41598-022-22603-4
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author Wierzba, Sławomir
Makuchowska-Fryc, Joanna
Kłos, Andrzej
Ziembik, Zbigniew
Ochędzan-Siodłak, Wioletta
author_facet Wierzba, Sławomir
Makuchowska-Fryc, Joanna
Kłos, Andrzej
Ziembik, Zbigniew
Ochędzan-Siodłak, Wioletta
author_sort Wierzba, Sławomir
collection PubMed
description The effect of calcium carbonate on the removal efficiency of cations of the selected heavy metals Cu, Zn and Pb from aqueous solutions using various biosorbents (BS) was investigated under laboratory static conditions. The main mechanism of biosorption of heavy metal cations is ion exchange, whereas the reaction with calcium carbonate results in precipitation of poorly soluble carbonates and hydroxides of the examined heavy metals. Studies conducted under static conditions have shown that the effect of Cu and Zn cations removal from solutions is better when using a mixture of BS and CaCO(3) as compared to the effect of process, in which these two components were used separately. Removal efficiency for Cu and Zn has been shown to increase from 20 to 50% depending on the BS used. For the removal of lead cations, a measurable effect is found only for biosorbents whose active centers are saturated with protons (improvement in removal efficiency by about 20%). A synergy effect in the flow system was also investigated. It was found that under the conditions of the experiment, the addition of powdered CaCO(3), in a weight ratio of 1 g CaCO(3): 15 g BS, increases the removal efficiency of all the metals studied by 20–30%. It has been shown that an important role in the process of heterophasic ion exchange is played by neutralization of protons—desorbed from the biosorbents—with hydroxide ions released into the solution by partial dissolution of CaCO(3) and subsequent hydrolysis reaction.
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spelling pubmed-95872712022-10-23 Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms Wierzba, Sławomir Makuchowska-Fryc, Joanna Kłos, Andrzej Ziembik, Zbigniew Ochędzan-Siodłak, Wioletta Sci Rep Article The effect of calcium carbonate on the removal efficiency of cations of the selected heavy metals Cu, Zn and Pb from aqueous solutions using various biosorbents (BS) was investigated under laboratory static conditions. The main mechanism of biosorption of heavy metal cations is ion exchange, whereas the reaction with calcium carbonate results in precipitation of poorly soluble carbonates and hydroxides of the examined heavy metals. Studies conducted under static conditions have shown that the effect of Cu and Zn cations removal from solutions is better when using a mixture of BS and CaCO(3) as compared to the effect of process, in which these two components were used separately. Removal efficiency for Cu and Zn has been shown to increase from 20 to 50% depending on the BS used. For the removal of lead cations, a measurable effect is found only for biosorbents whose active centers are saturated with protons (improvement in removal efficiency by about 20%). A synergy effect in the flow system was also investigated. It was found that under the conditions of the experiment, the addition of powdered CaCO(3), in a weight ratio of 1 g CaCO(3): 15 g BS, increases the removal efficiency of all the metals studied by 20–30%. It has been shown that an important role in the process of heterophasic ion exchange is played by neutralization of protons—desorbed from the biosorbents—with hydroxide ions released into the solution by partial dissolution of CaCO(3) and subsequent hydrolysis reaction. Nature Publishing Group UK 2022-10-21 /pmc/articles/PMC9587271/ /pubmed/36271239 http://dx.doi.org/10.1038/s41598-022-22603-4 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wierzba, Sławomir
Makuchowska-Fryc, Joanna
Kłos, Andrzej
Ziembik, Zbigniew
Ochędzan-Siodłak, Wioletta
Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title_full Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title_fullStr Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title_full_unstemmed Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title_short Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
title_sort role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9587271/
https://www.ncbi.nlm.nih.gov/pubmed/36271239
http://dx.doi.org/10.1038/s41598-022-22603-4
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