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Adsorption of 2,4-Dichlorophenoxyacetic acid onto coconut activated carbon: Kinetics and equilibrium studies | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 6, 2011, Pages 377-384 | ||
| Author | ||
| Jassem M. S | ||
| Abstract | ||
| The adsorption equilibrium and kinetics of 2,4-Dichlorophenoxyacetic acid (2,4-D) onto coconut activated carbon (CAC) were examined at 30 oC. Adsorption isotherm of the 2,4-D on the activated carbon was determined and correlated with common isotherm equations. The equilibrium data for 2,4-D adsorption well fitted to the Langmuir equation, with maximum monolayer adsorption capacity of 476.2 mg/g. Two simplified kinetic models including pseudo-first-order and pseudo-second-order equation were selected to follow the adsorption processes. The adsorption of 2,4-D could be best described by the pseudo-second-order equation. | ||
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