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

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

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

Author(s) -

Abdul Majid Channa,

Saima Q. Memon,

Muhammad Yar Khuhawar

Publication year - 2016

Publication title -

pakistan journal of analytical and environmental chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.155

H-Index - 3

eISSN - 2221-5255

pISSN - 1996-918X

DOI - 10.21743/pjaec/2016.06.010

Subject(s) - cadmium , aqueous solution , coal , environmental science , waste management , chemistry , environmental chemistry , engineering , organic chemistry

Abdul Majid Channa, Saima Q. Memon and Muhammad Yar Khuhawar Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Pakistan Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Pakistan *Corresponding Author Email: msaima77@gmail.com Received 29 March 2016, Revised 03 June 2016, Accepted 15 June 2016 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, 47.86 mgg and 8.422 mgg respectively. Among all tested kinetic models second order rate equation showed a best fit.

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