Table 7 Parameters of intraparticle diffusion kinetic model, R2 and AARD for AB25 adsorption onto CSAH various solution pH value - initial concentration 50 mg/l, adsorbent dosage 2 g/l, temperature 27 °C.
Solution pH | kid (mg/g min0.5) | C | R2 | AARD% |
|---|---|---|---|---|
CSA | ||||
3 | 1.2578 | 9.967 | 0.5779 | 9.4704 |
4 | 1.1372 | 9.257 | 0.5632 | 9.7011 |
6 | 1.0868 | 9.209 | 0.5473 | 9.5898 |
9 | 1.0175 | 7.116 | 0.6185 | 10.0905 |
11 | 0.8965 | 5.929 | 0.6262 | 10.7041 |
CSAH10 | ||||
3 | 1.1822 | 14.154 | 0.4180 | 9.6496 |
4 | 1.2336 | 11.236 | 0.5276 | 9.2949 |
6 | 1.1607 | 10.725 | 0.5197 | 9.4831 |
9 | 1.1184 | 9.187 | 0.5714 | 9.3559 |
11 | 0.9668 | 7.372 | 0.5898 | 9.9413 |