Modeling of Cadmium Removal on Lignite (Thar Coal) from Aqueous System

Abdul Majid Channa; Saima Q. Memon; Muhammad Yar Khuhawar

doi:10.21743/pjaec/2016.06.010

Modeling of Cadmium Removal on Lignite (Thar Coal) from Aqueous System

Authors

Abdul Majid Channa Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Pakistan Author
Saima Q. Memon Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Sindh, Pakistan Author
Muhammad Yar Khuhawar Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Pakistan Author

DOI:

https://doi.org/10.21743/pjaec/2016.06.010

Keywords:

Lignite, Design of experiments, Water treatment, Adsorptive removal

Abstract

Complete modeling of cadmium removal on Thar coal which is lignite in its nature has been carried out. A Design of Experiment (DoE) approach has been used for simultaneous optimization of different sorption parameters. DoE showed the positive effect of agitation time on removal of cadmium and negative effect of pH, interaction term pH and amount also showed a negative effect on removal. Values of sorption capacity calculated at optimum parameters for Langmuir, Freundlich and D-R isotherm were 100 mgg-1, 47.86 mgg-1 and 8.422 mgg-1 respectively. Among all tested kinetic models second order rate equation showed a best fit.

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Published

2016-01-01

Issue

Vol. 17 No. 1 (2016): Pakistan Journal of Analytical and Environmental Chemistry

Section

Research Articles

License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

How to Cite

(1)

Modeling of Cadmium Removal on Lignite (Thar Coal) from Aqueous System. Pak. J. Anal. Environ. Chem. 2016, 17 (1), 65 – 71. https://doi.org/10.21743/pjaec/2016.06.010.