Biosorption of Rhodamine B and Malachite green from aqueous solutions by Tamarindus indica fruit shells
A. Edwin Vasu1*
1Research Department of Chemistry, St. Joseph’s College (Autonomous), Tiruchirappalli, 620 002 India
http://dx.doi.org/10.12944/CWE.2.2.04
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 DG, DH and DS were evaluated.
Tamarindus Indica Fruit Shell; Malachite Green
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Vasu A.E. Biosorption of Rhodamine B and Malachite green from aqueous solutions by Tamarindus indica fruit shells. Curr World Environ 2007;2(2):127-134 DOI:http://dx.doi.org/10.12944/CWE.2.2.04
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Vasu A.E. Biosorption of Rhodamine B and Malachite green from aqueous solutions by Tamarindus indica fruit shells. Curr World Environ 2007;2(2):127-134. Curr World Environ 2008;2(2):127-134. Available from://www.a-i-l-s-a.com/?p=659
