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Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study

Cadmium (Cd) and lead (Pb) are global environmental pollutants. In this study, Nostoc sp. MK-11 was used as an environmentally safe, economical, and efficient biosorbent for the removal of Cd and Pb ions from synthetic aqueous solutions. Nostoc sp. MK-11 was identified on a morphological and molecul...

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Autores principales: Kaleem, Muhammad, Minhas, Lubna Anjum, Hashmi, Muhammad Zafar, Ali, Mohammad Ajmal, Mahmoud, Rania M., Saqib, Saddam, Nazish, Moona, Zaman, Wajid, Samad Mumtaz, Abdul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005389/
https://www.ncbi.nlm.nih.gov/pubmed/36903536
http://dx.doi.org/10.3390/molecules28052292
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author Kaleem, Muhammad
Minhas, Lubna Anjum
Hashmi, Muhammad Zafar
Ali, Mohammad Ajmal
Mahmoud, Rania M.
Saqib, Saddam
Nazish, Moona
Zaman, Wajid
Samad Mumtaz, Abdul
author_facet Kaleem, Muhammad
Minhas, Lubna Anjum
Hashmi, Muhammad Zafar
Ali, Mohammad Ajmal
Mahmoud, Rania M.
Saqib, Saddam
Nazish, Moona
Zaman, Wajid
Samad Mumtaz, Abdul
author_sort Kaleem, Muhammad
collection PubMed
description Cadmium (Cd) and lead (Pb) are global environmental pollutants. In this study, Nostoc sp. MK-11 was used as an environmentally safe, economical, and efficient biosorbent for the removal of Cd and Pb ions from synthetic aqueous solutions. Nostoc sp. MK-11 was identified on a morphological and molecular basis using light microscopic, 16S rRNA sequences and phylogenetic analysis. Batch experiments were performed to determine the most significant factors for the removal of Cd and Pb ions from the synthetic aqueous solutions using dry Nostoc sp. MK1 biomass. The results indicated that the maximum biosorption of Pb and Cd ions was found under the conditions of 1 g of dry Nostoc sp. MK-11 biomass, 100 mg/L of initial metal concentrations, and 60 min contact time at pH 4 and 5 for Pb and Cd, respectively. Dry Nostoc sp. MK-11 biomass samples before and after biosorption were characterized using FTIR and SEM. A kinetic study showed that a pseudo second order kinetic model was well fitted rather than the pseudo first order. Three isotherm models Freundlich, Langmuir, and Temkin were used to explain the biosorption isotherms of metal ions by Nostoc sp. MK-11 dry biomass. Langmuir isotherm, which explains the existence of monolayer adsorption, fitted well to the biosorption process. Considering the Langmuir isotherm model, the maximum biosorption capacity (q(max)) of Nostoc sp. MK-11 dry biomass was calculated as 75.757 and 83.963 mg g(−1) for Cd and Pb, respectively, which showed agreement with the obtained experimental values. Desorption investigations were carried out to evaluate the reusability of the biomass and the recovery of the metal ions. It was found that the desorption of Cd and Pb was above 90%. The dry biomass of Nostoc sp. MK-11 was proven to be efficient and cost-effective for removing Cd and especially Pb metal ions from the aqueous solutions, and the process is eco-friendly, feasible, and reliable.
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spelling pubmed-100053892023-03-11 Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study Kaleem, Muhammad Minhas, Lubna Anjum Hashmi, Muhammad Zafar Ali, Mohammad Ajmal Mahmoud, Rania M. Saqib, Saddam Nazish, Moona Zaman, Wajid Samad Mumtaz, Abdul Molecules Article Cadmium (Cd) and lead (Pb) are global environmental pollutants. In this study, Nostoc sp. MK-11 was used as an environmentally safe, economical, and efficient biosorbent for the removal of Cd and Pb ions from synthetic aqueous solutions. Nostoc sp. MK-11 was identified on a morphological and molecular basis using light microscopic, 16S rRNA sequences and phylogenetic analysis. Batch experiments were performed to determine the most significant factors for the removal of Cd and Pb ions from the synthetic aqueous solutions using dry Nostoc sp. MK1 biomass. The results indicated that the maximum biosorption of Pb and Cd ions was found under the conditions of 1 g of dry Nostoc sp. MK-11 biomass, 100 mg/L of initial metal concentrations, and 60 min contact time at pH 4 and 5 for Pb and Cd, respectively. Dry Nostoc sp. MK-11 biomass samples before and after biosorption were characterized using FTIR and SEM. A kinetic study showed that a pseudo second order kinetic model was well fitted rather than the pseudo first order. Three isotherm models Freundlich, Langmuir, and Temkin were used to explain the biosorption isotherms of metal ions by Nostoc sp. MK-11 dry biomass. Langmuir isotherm, which explains the existence of monolayer adsorption, fitted well to the biosorption process. Considering the Langmuir isotherm model, the maximum biosorption capacity (q(max)) of Nostoc sp. MK-11 dry biomass was calculated as 75.757 and 83.963 mg g(−1) for Cd and Pb, respectively, which showed agreement with the obtained experimental values. Desorption investigations were carried out to evaluate the reusability of the biomass and the recovery of the metal ions. It was found that the desorption of Cd and Pb was above 90%. The dry biomass of Nostoc sp. MK-11 was proven to be efficient and cost-effective for removing Cd and especially Pb metal ions from the aqueous solutions, and the process is eco-friendly, feasible, and reliable. MDPI 2023-03-01 /pmc/articles/PMC10005389/ /pubmed/36903536 http://dx.doi.org/10.3390/molecules28052292 Text en © 2023 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
Kaleem, Muhammad
Minhas, Lubna Anjum
Hashmi, Muhammad Zafar
Ali, Mohammad Ajmal
Mahmoud, Rania M.
Saqib, Saddam
Nazish, Moona
Zaman, Wajid
Samad Mumtaz, Abdul
Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title_full Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title_fullStr Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title_full_unstemmed Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title_short Biosorption of Cadmium and Lead by Dry Biomass of Nostoc sp. MK-11: Kinetic and Isotherm Study
title_sort biosorption of cadmium and lead by dry biomass of nostoc sp. mk-11: kinetic and isotherm study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005389/
https://www.ncbi.nlm.nih.gov/pubmed/36903536
http://dx.doi.org/10.3390/molecules28052292
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