Linear and Non-linear Regression Methods to Study the Adsorption of Cr(VI) from an Aqueous Solution Using Pomegranate Peel

Salah M. Abdullah; Aseel F.  Alwan; Atheer M.  Majeed; Enageh T. A.  Abdalgader

Article Details

Linear and Non-linear Regression Methods to Study the Adsorption of Cr(VI) from an Aqueous Solution Using Pomegranate Peel

Authors:

Salah M. Abdullah | Aseel F. Alwan | Atheer M. Majeed | Enageh T. A. Abdalgader

Publisher:

Mustansiriyah University

Journal:

Al-Mustansiriyah Journal of Science Vol.34 Issue 4, pp.58-65

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001934125

pISSN:

2521-3520

Keywords:

Abstract:

 In this study, the previous data of the adsorption of Chromium (VI) ions on the pomegranate peels (MPGP) as adsorbents were used. linear and non-linear equations for Langmuir, Freundlich, Dubinin-Radushkevich, Tempkin, Redlich-Peterson, Sips, and Toth adsorption isotherm models were applied. The five error functions ERRSQ, HYBRD, MPSD, ARE, and EABS were analyzed for non-linear isotherm equations and in each case a set of isotherm parameters were determined. The algorithms for the simulation of linear and non-linear isotherm models using error functions were achieved with the aid of Microsoft Excel solver Add-Ins for minimizing the respective error function across the concentration range studied. Linear and non-linear methods show comparable data for two-parameter models, also high R2 values were obtained for Langmuir, Freundlich, and Temkin models while the Dubinin-Radushkevich model reveals low R2 values, on the contrary, three-parameter models show different data between linear and non-linear methods with high R2 value for all. Which indicates that the error does not obey the Gaussian distribution.

Article Details

Linear and Non-linear Regression Methods to Study the Adsorption of Cr(VI) from an Aqueous Solution Using Pomegranate Peel

Authors:

Salah M. Abdullah | Aseel F. Alwan | Atheer M. Majeed | Enageh T. A. Abdalgader

Publisher:

Mustansiriyah University

Journal:

Al-Mustansiriyah Journal of Science Vol.34 Issue 4, pp.58-65

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001934125

pISSN:

2521-3520

statistical study

Linear and non-linear regression

Adsorption

Chromium (VI)

pomegranate peel

linear regression

non-linear regression

error functions

adsorption

Issues

Article Details

Authors: Salah M. Abdullah | Aseel F. Alwan | Atheer M. Majeed | Enageh T. A. Abdalgader

Publisher: Mustansiriyah University

Journal: Al-Mustansiriyah Journal of Science Vol.34 Issue 4, pp.58-65

Document Type: Article

Publication Date: 12/2023

Document Language: English

Document ID (Org No.): 2001934125

pISSN: 2521-3520

Issues

Authors:

Salah M. Abdullah | Aseel F. Alwan | Atheer M. Majeed | Enageh T. A. Abdalgader

Publisher:

Mustansiriyah University

Journal:

Al-Mustansiriyah Journal of Science Vol.34 Issue 4, pp.58-65

Document Type:

Article

Publication Date:

12/2023

Document Language:

English

Document ID (Org No.):

2001934125

pISSN:

2521-3520