Biosorption of Rhodamine B and Malachite green from aqueous solutions by Tamarindus indica fruit shells
نویسنده
چکیده
The removal of rhodamine B and malachite green from aqueous solutions was studied in batch adsorption systems using Tamarindus Indica fruit shells as sorbents. The well known Freundlich, Langmuir and Redlich-Peterson isotherm equations were applied to the equilibrium sorption data obtained. The sorption dynamics were found to obey the pseudo-second order rate equation and particle diffusions appear to control the overall rates. Increase of both pH and temperature resulted in increased sorption and the thermodynamic parameters like ΔG, ΔH and ΔS were evaluated.
منابع مشابه
Removal of basic dyes from aqueous solutions by activated carbon prepared from Tamarindus indica fruit shells
Activated carbon prepared from Tamarindus Indica fruit shells has been used for the removal of two basic dyes, namely, rhodamine B and malachite green from aqueous solutions. Freundlich, Langmuir and Redlich-Peterson isotherm equations were used to fit the equilibrium adsorption data and the isotherm parameters were evaluated. The Langmuir monolayer adsorption capacity was found to be 3.1 mg/g ...
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