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.