Fig. 6From: Modeling and equilibrium studies on the recovery of praseodymium (III), dysprosium (III) and yttrium (III) using acidic cation exchange resina Nonlinear isotherm plot of Langmuir model, b Nonlinear isotherm plot of Freundlich model, c Nonlinear isotherm plot of D-R, d Nonlinear isotherm plot of Temkin model, d Nonlinear isotherm plot Toth model for adsorption of Pr(III), DY(III) and Y(III) onto Dowex 50WX8Back to article page