Advances in Polymer Technology / 2020 / Article / Tab 2 / Research Article
Oxidized Renewable Materials for the Removal of Cobalt(II) and Copper(II) from Aqueous Solution Using in Batch and Fixed-Bed Column Adsorption Table 2 Results of modeling the experimental kinetic data for the adsorption of Cu2+ and Co2+ on Cox and SBox (25°C, 150 rpm, pH 5.5, 0.79 mmol/L Cu2+ , 0.85 mmol/L Co2+ , 0.2 g/L Cox or SBox).
Parameter Cox-Cu2+ Cox-Co2+ SBox-Cu2+ SBox-Co2+ 1.16 ± 0.02 0.70 ± 0.01 0.56 ± 0.01 0.41 ± 0.02 73.53 ± 1.58 41.18 ± 0.41 35.30 ± 0.52 23.87 ± 1.17 120 120 45 180 Model Pseudo-first-order (PFO) 1.12 ± 0.04 0.71 ± 0.01 0.54 ± 0.01 0.41 ± 0.01 71.08 ± 2.28 41.88 ± 0.58 34.33 ± 0.63 24.25 ± 0.34 0.088 ± 0.010 0.028 ± 0.001 0.664 ± 0.064 0.020 ± 0.001 0.952 0.994 0.930 0.989 0.947 0.993 0.923 0.988 0.008 8.44×10−4 0.002 4.14×10−4 Model Pseudo-second-order (PSO) 1.19 ± 0.02 0.80 ± 0.04 0.56 ± 0.00 0.47 ± 0.01 75.42 ± 1.50 47.11 ± 2.12 35.37 ± 0.27 27.41 ± 0.65 0.109 ± 0.011 0.042 ± 0.008 1.865 ± 0.110 0.055 ± 0.006 0.984 0.955 0.988 0.981 0.983 0.950 0.987 0.979 0.003 0.006 2.87 × 10−4 7.42 × 10−4 Model Intraparticle diffusion (IPD) 1st step (mmol/g min1/2 )0.171 ± 0.001 0.114 ± 0.011 0.291 ± 0.000 0.036 ± 0.004 (mmol/g)0.061 ± 0.003 −0.210 ± 0.050 −0.015 ± 0.000 −0.006 ± 0.023 0.999 0.991 1.000 0.980 0.999 0.981 — 0.969 2nd step (mmol/g min1/2 )0.077 ± 0.007 0.040± 0.033 ± 0.000 0.019 ± 0.004 (mmol/g)0.512 ± 0.036 0.296± 0.385 ± 0.00 0.153 ± 0.035 0.985 0.983 1.000 0.967 0.977 0.966 — 0.934 Model Boyd 0.035 ± 0.003 0.031 ± 0.002 0.135 ± 0.034 0.016 ± 0.000 Intercept 0.030 ± 0.057 −0.403 ± 0.116 0.380 ± 0.193 −0.213 ± 0.060 Di (m2 /min)2.19 × 10−10 1.98 × 10−10 8.55 × 10−10 9.98 × 10−11 R 2 0.974 0.983 0.888 0.986 R 2 adj 0.969 0.978 0.832 0.983