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Thermodynamic parameters for adsorption equilibrium of heavy metals and dyes from wastewater with low-cost adsorbents.

Ramesh A, Lee DJ, Wong JW

Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.

This note revisits the literature evaluating the thermodynamic parameters of adsorption equilibrium uptakes of heavy metals and dyes from water and wastewater streams using low-cost adsorbents derived from agricultural waste, industrial wastes, inorganic particulates, or some natural products. We highlighted the possible flaws in some adsorption studies when their thermodynamic parameters were assessed, since compensation effects during enthalpy and entropy evaluation were possibly overlooked.

Published 11 October 2005 in J Colloid Interface Sci, 291(2): 588-92.
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