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
: log [q.sub.e] = log [K.sub.F] + (1/n) log [C.sub.e] (4)
. The Langmuir model is another popularly used sorption model, originally developed by Langmuir  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
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
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.