Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide

The biosorption of the biosorption of lead(II) onto an Antarctic sea-ice bacterial exopolysaccharide is remodeled using nonlinear regression and the optimal mode was determined by a series of error function assessments. The Sips model performed best in statistical tests including root-mean-square er...

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Main Authors: Ubana, Muhammed Abdullahi, Ya'u, Murtala, Marbawi, Hartinie, Yasid, Nur Adeela, Shukor, Mohd Yunus
Format: Article
Published: Hibiscus Publisher 2022
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author Ubana, Muhammed Abdullahi
Ya'u, Murtala
Marbawi, Hartinie
Yasid, Nur Adeela
Shukor, Mohd Yunus
author_facet Ubana, Muhammed Abdullahi
Ya'u, Murtala
Marbawi, Hartinie
Yasid, Nur Adeela
Shukor, Mohd Yunus
author_sort Ubana, Muhammed Abdullahi
collection UPM
description The biosorption of the biosorption of lead(II) onto an Antarctic sea-ice bacterial exopolysaccharide is remodeled using nonlinear regression and the optimal mode was determined by a series of error function assessments. The Sips model performed best in statistical tests including root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), and corrected Akaike Information Criterion (AICc) which is not the same to the originally published work using a linearized form where the Langmuir and Freundlich models best represent the biosorption and the maximum biosorption capacity. The calculated Sips parameters kS (l/g) value of 0.10 (95% confidence interval from 0.08 to 0.13), a maximum monolayer adsorption capacity qmS (mg/g) value of 252.88 (95% C.I. from 222.13 to 283.64) and nS (Sips model exponent) value of 1.16 (95% C.I. from 1.34 to 1.98). This study indicates that a different isotherm model can be obtained using nonlinear regression compared to the popular linearized form that may give relatively inaccurate outcome.
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spelling upm.eprints-1020192023-07-11T03:02:38Z http://psasir.upm.edu.my/id/eprint/102019/ Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide Ubana, Muhammed Abdullahi Ya'u, Murtala Marbawi, Hartinie Yasid, Nur Adeela Shukor, Mohd Yunus The biosorption of the biosorption of lead(II) onto an Antarctic sea-ice bacterial exopolysaccharide is remodeled using nonlinear regression and the optimal mode was determined by a series of error function assessments. The Sips model performed best in statistical tests including root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), and corrected Akaike Information Criterion (AICc) which is not the same to the originally published work using a linearized form where the Langmuir and Freundlich models best represent the biosorption and the maximum biosorption capacity. The calculated Sips parameters kS (l/g) value of 0.10 (95% confidence interval from 0.08 to 0.13), a maximum monolayer adsorption capacity qmS (mg/g) value of 252.88 (95% C.I. from 222.13 to 283.64) and nS (Sips model exponent) value of 1.16 (95% C.I. from 1.34 to 1.98). This study indicates that a different isotherm model can be obtained using nonlinear regression compared to the popular linearized form that may give relatively inaccurate outcome. Hibiscus Publisher 2022-07-31 Article PeerReviewed Ubana, Muhammed Abdullahi and Ya'u, Murtala and Marbawi, Hartinie and Yasid, Nur Adeela and Shukor, Mohd Yunus (2022) Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide. Journal Of Environmental Microbiology And Toxicology, 10 (1). 23 - 27. ISSN 2289-5906 https://journal.hibiscuspublisher.com/index.php/JEMAT/article/view/694 10.54987/jemat.v10i1.694
spellingShingle Ubana, Muhammed Abdullahi
Ya'u, Murtala
Marbawi, Hartinie
Yasid, Nur Adeela
Shukor, Mohd Yunus
Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title_full Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title_fullStr Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title_full_unstemmed Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title_short Isothermal modelling of the adsorption of Lead(II) onto an antarctic sea-Ice Bacterial Exopolysaccharide
title_sort isothermal modelling of the adsorption of lead ii onto an antarctic sea ice bacterial exopolysaccharide
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