Research Article
An Investigation on Effectiveness of Grafted Potato Starch as an Adsorbent for Hard Water Treatment
Table 2
Adsorption kinetic parameters for pseudo-first- and second-order kinetic models.
| Hardness (mg/L) | Pseudo-first-order kinetic model | Pseudo-second-order kinetic model | qe, cal (mg/g) | K1 (min−1) | R2 | qe, cal (mg/g) | K2 (g mg−1min−1) | R2 |
| 200 | 1.413 | −8.2612 | 0.652 | 0.369 | 0.369 | 0.996 | 250 | 1.292 | −7.2428 | 0.659 | 0.403 | 0.403 | 0.994 | 300 | 1.223 | −4.0870 | 0.607 | 0.522 | 0.522 | 0.994 |
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