| Literature DB >> 14575739 |
Danny C K Ko1, Chun Wai Cheung, Keith K H Choy, John F Porter, Gordon McKay.
Abstract
The ability of bone char to adsorb three metal ions, namely, copper(II), zinc(II) and cadmium(II) ions from wastewater has been studied. Three single-component equilibrium systems and three binary equilibrium systems have been measured experimentally. The three single-component equilibrium data were analyzed using the Langmuir and the Sips equilibrium isotherm equations. The Sips isotherm gave a better fit of the experimental data than the Langmuir isotherm based on the sum of squares errors (SSE) analysis. The Cu-Zn, Cu-Cd and Cd-Zn binary equilibrium experimental data were examined by incorporating the Langmuir and the Sips isotherm equations into the ideal adsorbed solution theory (IAST). The solution methods and the predicted results for the three binary systems at different metal ion compositions have been evaluated. In addition, the application of the IAST to the model prediction for the fixed bed system is presented.Entities:
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Year: 2004 PMID： 14575739 DOI： 10.1016/j.chemosphere.2003.08.004
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086