Singhal, N and Murari, Prasad and Gupta, N and Kumar, V (2007) Modeling the Sorption Kinetics of Divalent Metal Ions on to Mineral Adsorbent Using Integral Method. Journal of Colloidal and Interface Science.

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Abstract

A mathematical model has been developed that could predict kinetic parameters for the adsorption of divalent cations (lead, copper and zinc) onto low-grade rock phosphate using experimental data. The experiments were conducted with the initial concentrations of metal ions ranging from 10 to 100 mg/L. The mathematical model is based on application of Freundlich isotherm to mass transfer across the film surrounding the adsorbent. A code in C programming is used to numerically integrate the model equation, and to obtain the best simulated values of Freundlich constants K, N, order of reaction n, and film transfer coefficient, alpha. It is observed that the adsorption of metal ions on rock phosphate is more sensitive to N,n, and alpha in comparison to K, and lead is adsorbed more favorably than copper and zinc.

Item Type:	Article
Subjects:	CSIR-800 > Environmental Studies/Chemistry Material/Component Development, Processing and Characterization > Mineral Processing/Beneficiation
Divisions:	UNSPECIFIED
Depositing User:	Mr. B.K. Prasad
Date Deposited:	13 Jan 2014 08:34
Last Modified:	04 Mar 2014 11:12
URI:	http://ampri.csircentral.net/id/eprint/971

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