Murari, Prasad and Nidhi, Singhal and Neelmani , Gupta and Vineet, Kumar (2007) Modeling the sorption kinetics of divalent metal ions onto mineral adsorbent using integral method. Journal of Colloid and Interface Science, 313. pp. 423-427. ISSN 0021-9797

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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, α. It is observed that the adsorption of metal ions on rock phosphate is more sensitive to N,n, and α in comparison to K, and lead is adsorbed more favorably than copper and zinc.

Item Type: Article
Subjects: CSIR-800 > Environmental Studies/Chemistry
Depositing User: Mr. B.K. Prasad
Date Deposited: 29 Jul 2013 06:47
Last Modified: 29 Jul 2013 07:04

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