Table 6 R2 and K values for various kinetic models for CPKC at pH 3 and Temperatures 30 °C, 35 °C and 40 °C.
Ads | pH | Temp (°C) | Initial Conc. (mg/l) | First order | Pseudo first order | Second order | Pseudo second order | Intra particle diffusion | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
k (min−1) | R2 | k (min−1) | R2 | k (l/mg min) | R2 | k (g/mg min) | R2 | k (g/mg min−1) | R2 | ||||
CPKC | 3 | 30 | 10 | 0.1605 | 0.9165 | 1.5268 | 0.9724 | 0.1150 | 0.9464 | 4.0891 | 0.9507 | 0.2383 | 0.9486 |
30 | 0.2827 | 0.8983 | 1.9841 | 0.9120 | 0.0440 | 0.9069 | 0.6410 | 0.9875 | 5.4980 | 0.9270 | |||
50 | 0.2548 | 0.9603 | 2.2943 | 0.9936 | 0.0257 | 0.9725 | 0.4102 | 0.9919 | 8.3930 | 0.9962 | |||
70 | 0.2591 | 0.8636 | 2.4968 | 0.9764 | 0.0185 | 0.8781 | 0.2232 | 0.9978 | 12.6558 | 0.9533 | |||
100 | 0.3219 | 0.9266 | 1.9023 | 0.7938 | 0.0138 | 0.9274 | 0.0682 | 0.9985 | 25.9924 | 0.9291 | |||
120 | 0.3124 | 0.9145 | 2.0097 | 0.8875 | 0.0114 | 0.9171 | 0.0468 | 0.9995 | 30.4748 | 0.9717 | |||
35 | 10 | 0.2001 | 0.9585 | 1.7399 | 0.9483 | 0.1161 | 0.9763 | 3.1696 | 0.9561 | 0.5246 | 0.9686 | ||
30 | 0.4845 | 0.9148 | 1.5606 | 0.9726 | 0.0540 | 0.9267 | 0.2296 | 0.9985 | 10.2379 | 0.9723 | |||
50 | 0.4305 | 0.9103 | 2.1355 | 0.9978 | 0.0306 | 0.9145 | 0.2005 | 0.9949 | 14.7029 | 0.9578 | |||
70 | 0.4955 | 0.8867 | 2.0315 | 0.9464 | 0.0234 | 0.9004 | 0.0799 | 0.9988 | 24.9998 | 0.9454 | |||
100 | 0.4410 | 0.7166 | 1.5937 | 0.7949 | 0.0155 | 0.7251 | 0.0330 | 0.9997 | 33.6861 | 0.8377 | |||
120 | 0.4243 | 0.9446 | 1.7959 | 0.9464 | 0.0127 | 0.9469 | 0.0321 | 0.9995 | 39.8299 | 0.9647 | |||
40 | 10 | 0.2977 | 0.9420 | 1.7954 | 0.9483 | 0.1255 | 0.9655 | 2.1567 | 0.9720 | 1.2820 | 0.9533 | ||
30 | 0.5665 | 0.9532 | 1.8944 | 0.8387 | 0.0582 | 0.9539 | 0.2535 | 0.9950 | 11.5232 | 0.9507 | |||
50 | 0.5586 | 0.8174 | 2.2815 | 0.9825 | 0.0349 | 0.8457 | 0.1172 | 0.9994 | 18.4720 | 0.9134 | |||
70 | 0.4865 | 0.8860 | 2.7040 | 0.8869 | 0.0232 | 0.9019 | 0.1018 | 0.9980 | 23.6001 | 0.9538 | |||
100 | 0.4398 | 0.9268 | 2.7977 | 0.9848 | 0.0155 | 0.9391 | 0.0835 | 0.9980 | 31.0178 | 0.9787 | |||
120 | 0.4430 | 0.8442 | 2.4824 | 0.8520 | 0.0130 | 0.8576 | 0.0523 | 0.9984 | 38.7346 | 0.9238 | |||