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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2022
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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. |
format | Online Article Text |
id | pubmed-9587271 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
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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