Journal
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume 78, Issue B3, Pages 219-223Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1205/095758200530673
Keywords
adsorption; multisolute; Ideal Adsorbed Solution; Langmuir isotherm
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The removal of acid dyes, Tectilon Blue 4R, Tectilon Red 2B and Tectilon Orange 3G, from single solute, bisolute and trisolute solutions by adsorption on activated carbon (GAC F400) has been investigated in isotherm experiments. Results from these experiments were modelled using the Langmuir and Freundlich adsorption isotherm theories with the Langmuir model proving to be the more suitable. The Ideal Adsorbed Solution (IAS) model was coupled with the Langmuir isotherm to predict binary adsorption on the dyes. The application of the IAS theory accurately simulated the experimental data with an average deviation of approximately 3% between modelled and experimental data.
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