Particle size    (mm)             Langmuir  K (mg/g)     a               R2            Freundlich   Kf              n        R2                        Redlich-Peterson   K            aR         b         R2 0.125   5.32    0.411 0.9908    1.57  1.90   0.9981 5.31 2.36 0.61 1.000 0.178   5.87    0.138 0.9878 0.84  1.59   0.9903 1.37 0.74 0.59  0.9920 0.422   7.40    0.050 0.9966 0.44  1.34   0.9962 0.47 0.21 0.62 0.9974

Table 3: Langmuir, Freundlich and Redlich-Peterson constants for adsorption at different particle sizes.