McKay, "Error analysis of adsorption
isotherm models for acid dyes onto bamboo derived activated carbon," Chinese Journal of Chemical Engineering, vol.
The experimental data will be applied to the BET and GAB
isotherm models.
Freundlich
isotherm: log [q.sub.e] = log [K.sub.F] + (1/n) log [C.sub.e] (4)
Langmuir
Isotherm. The Langmuir model is another popularly used sorption model, originally developed by Langmuir [29] to describe the adsorption of gases by solids.
The heavy metal ions sorption
isotherm was determined using batch experiments at varied initial metal ion concentration ranging from 5 to 350 mg/L.
An attempt was also made in this work to fit the experimental
isotherm data with available adsorption
isotherm models.
The prioritisation of higher energy sites before lower energy sites, and a decreasing binding affinity with increasing concentrations results in a nonlinear
isotherm where P removal is very strong at low concentrations (Barrow 1978; McGechan and Lewis 2002).
For fruit powder, the hygroscopic equilibrium
isotherms are important (Anselmo et al., 2006).
Keywords: Adsorption, Pentaclethra macrophylla, Physisorption,
Isotherm, Kinetics.
Equation 2 denotes Langmuir
isotherm, where "qe" denotes the amount of adsorbate adsorbed at the equilibrium (mg/Kg), "Qmax" the maximum adsorption capacity of the adsorbent (mg/Kg).
Additionally, the use of undisturbed soil samples to perform solute transport test and determine sorption
isotherm have not been identified in the literature, and are also presented in this work.