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Title: Adsorption isotherms, kinetics, thermodynamics and desorption studies of reactive orange 16 on activated carbon derived from Ananas comosus (L) carbon
Authors: Parimalam ramachandran, Raj vairamuthu, Sivakumar ponnusamy
Journal: ARPN Journal of Engineering and Applied Sciences
Publisher: Khyber Medical College, Peshawar
Country: Pakistan
Year: 2011
Volume: 6
Issue: 11
Language: English
The study describes the results of batch experiments on removal of reactive orange16 from aqueous solution onto activated carbon prepared from Ananas Comosus leaves. The adsorbent has been studied as a function of contact time, temperature, pH and initial dye concentration by batch experiments. pH 2-3 was found suitable for maximum removal of RO16. A dye adsorption capacity of activated carbon for the RO16 is 147.05 mg/g adsorbent. Langmuir, Freundlich, Tempkin, Dubinin-Raduskevich isotherm models were applied for the analysis of isotherm data. Thermodynamic treatment of adsorption data showed an exothermic nature of adsorption. The dye uptake process was found to follow second order kinetics.
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