Adsorptive Removal Of Congo Red From Aqueous Solution By Local Chaff Surface: Thermodynamics And Kinetics Studies

Abdumuhsin A. Al-Haidari; Saja S. J. Al-Taweel; Laith S. Jassim

Article Details

Adsorptive Removal Of Congo Red From Aqueous Solution By Local Chaff Surface: Thermodynamics And Kinetics Studies

Authors:

Abdumuhsin A. Al-Haidari | Saja S. J. Al-Taweel | Laith S. Jassim

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.26 Issue 2, pp.166-177

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

2001377088

pISSN:

2521-3407

Keywords:

Abstract:

 This study is concerned with the adsorption of Congo red from solution on the surface of Chaff. The adsorption isotherm is of L-curve type according to Giles classification and the experimental data were best fitted to Langmuir isotherm model. The adsorption phenomenon was examined as a function of temperature (25, 40, 55 oC). The extent of adsorption of Congo red on Chaff was found to increase with the increase of temperature (endothermic process). The basic thermodynamic functions have also been calculated. The effect of contact time was investigated and found that the adsorption process of dye on Chaff surface reached complete equilibrium within 90 min. The maximum uptake of Congo red by Chaff was found to be 92.9% at 25oC. The kinetic data were well fitted to the Lagergren, pseudo-second order models. The results indicated that adsorption process followed the second order model. This behavior was discussed depending on the chemical structure of dye and Chaff surface. The kinetics of dye adsorption was also studied in terms of intraparticle diffusion model. The results indicated that intraparticle diffusion plays a significant role in the adsorption mechanism.

Article Details

Adsorptive Removal Of Congo Red From Aqueous Solution By Local Chaff Surface: Thermodynamics And Kinetics Studies

Authors:

Abdumuhsin A. Al-Haidari | Saja S. J. Al-Taweel | Laith S. Jassim

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.26 Issue 2, pp.166-177

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

2001377088

pISSN:

2521-3407

Adsorption

Congo red

Chaff

Issues

Article Details

Adsorptive Removal Of Congo Red From Aqueous Solution By Local Chaff Surface: Thermodynamics And Kinetics Studies

Authors: Abdumuhsin A. Al-Haidari | Saja S. J. Al-Taweel | Laith S. Jassim

Publisher: University of Baghdad

Journal: Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.26 Issue 2, pp.166-177

Document Type: Article

Publication Date: 1/2013

Document Language: English

Document ID (Org No.): 2001377088

pISSN: 2521-3407

Adsorption

Congo red

Chaff

Issues

Authors:

Abdumuhsin A. Al-Haidari | Saja S. J. Al-Taweel | Laith S. Jassim

Publisher:

University of Baghdad

Journal:

Ibn AL-Haitham Journal For Pure and Applied Sciences Vol.26 Issue 2, pp.166-177

Document Type:

Article

Publication Date:

1/2013

Document Language:

English

Document ID (Org No.):

2001377088

pISSN:

2521-3407