“…C i , C e , V, and M in eq 1 are expressed as the initial concentration of adsorbate ions (mg concentration of adsorbate ions (mg•L −1 ), volume of aqueous solutions (L), and mass of adsorbent (g), respectively. Also, the experimental data obtained from equilibrium, kinetic, and thermodynamic studies were fit into twoparameter 57 and three-parameter nonlinear equations, 58 optimized by the Quasi-Newton least-squares algorithm, sum of square error (SSE), and correlation coefficient (R 2 ) in a KyPlot Software 2.0 model (KyensLab Incorporated, Tokyo, Japan) and Data Analysis and Graphing Software, OriginPro 9.1, OriginLab Corporation, Northampton, Massachusetts, USA, given as Freundlich model (FM) 59…”