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Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater

Erbium belongs to rare earth elements critical for industry, especially nuclear technology. Cyanobacteria Arthospira platensis was used for Er(III) removal from wastewater by applying biosorption and bioaccumulation processes. The influence of pH, Er(III) concentration, contact time and temperature...

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Autores principales: Yushin, Nikita, Zinicovscaia, Inga, Cepoi, Liliana, Chiriac, Tatiana, Rudi, Ludmila, Grozdov, Dmitrii
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9458052/
https://www.ncbi.nlm.nih.gov/pubmed/36079481
http://dx.doi.org/10.3390/ma15176101
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author Yushin, Nikita
Zinicovscaia, Inga
Cepoi, Liliana
Chiriac, Tatiana
Rudi, Ludmila
Grozdov, Dmitrii
author_facet Yushin, Nikita
Zinicovscaia, Inga
Cepoi, Liliana
Chiriac, Tatiana
Rudi, Ludmila
Grozdov, Dmitrii
author_sort Yushin, Nikita
collection PubMed
description Erbium belongs to rare earth elements critical for industry, especially nuclear technology. Cyanobacteria Arthospira platensis was used for Er(III) removal from wastewater by applying biosorption and bioaccumulation processes. The influence of pH, Er(III) concentration, contact time and temperature on the biosorption capacity of Arthospira platensis was determined. The optimal conditions for Er(III) removal were defined as pH 3.0, time 15 min and temperature 20 °C, when 30 mg/g of Er(III) were removed. The kinetics of the process was better described by the pseudo-first-order model, while equilibrium fitted to the Freundlich model. In bioaccumulation experiments, the uptake capacity of biomass and Er(III) effect on biomass biochemical composition were assessed. It was shown that Er(III) in concentrations 10–30 mg/L did not affect the content of biomass, proteins, carbohydrate and photosynthetic pigments. Its toxicity was expressed by the reduction of the lipids content and growth of the level of malonic dialdehyde. Biomass accumulated 45–78% of Eu(III) present in the cultivation medium. Therefore, Arthospira platensis can be considered as a safe and efficient bioremediator of erbium contaminated environment.
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spelling pubmed-94580522022-09-09 Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater Yushin, Nikita Zinicovscaia, Inga Cepoi, Liliana Chiriac, Tatiana Rudi, Ludmila Grozdov, Dmitrii Materials (Basel) Article Erbium belongs to rare earth elements critical for industry, especially nuclear technology. Cyanobacteria Arthospira platensis was used for Er(III) removal from wastewater by applying biosorption and bioaccumulation processes. The influence of pH, Er(III) concentration, contact time and temperature on the biosorption capacity of Arthospira platensis was determined. The optimal conditions for Er(III) removal were defined as pH 3.0, time 15 min and temperature 20 °C, when 30 mg/g of Er(III) were removed. The kinetics of the process was better described by the pseudo-first-order model, while equilibrium fitted to the Freundlich model. In bioaccumulation experiments, the uptake capacity of biomass and Er(III) effect on biomass biochemical composition were assessed. It was shown that Er(III) in concentrations 10–30 mg/L did not affect the content of biomass, proteins, carbohydrate and photosynthetic pigments. Its toxicity was expressed by the reduction of the lipids content and growth of the level of malonic dialdehyde. Biomass accumulated 45–78% of Eu(III) present in the cultivation medium. Therefore, Arthospira platensis can be considered as a safe and efficient bioremediator of erbium contaminated environment. MDPI 2022-09-02 /pmc/articles/PMC9458052/ /pubmed/36079481 http://dx.doi.org/10.3390/ma15176101 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yushin, Nikita
Zinicovscaia, Inga
Cepoi, Liliana
Chiriac, Tatiana
Rudi, Ludmila
Grozdov, Dmitrii
Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title_full Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title_fullStr Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title_full_unstemmed Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title_short Application of Cyanobacteria Arthospira platensis for Bioremediation of Erbium-Contaminated Wastewater
title_sort application of cyanobacteria arthospira platensis for bioremediation of erbium-contaminated wastewater
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9458052/
https://www.ncbi.nlm.nih.gov/pubmed/36079481
http://dx.doi.org/10.3390/ma15176101
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