Research Article
Eggshell-Derived Nanohydroxyapatite Adsorbent for Defluoridation of Drinking Water from Bofo of Ethiopia
Table 2
Kinetic data obtained by varying the contact time using a constant adsorbent dose of 5 g HA,
, and 10 mg/g of fluoride concentration.
| | Time (hr) | Residual fluoride | (mg/g) | | | |
| | 1 | 0.15 | 0.0591 | 16.92047 | -8.1117 | -2.82855 | | 3 | 0.12 | 0.0592 | 58.67567 | -8.5171 | -2.8265 | | 5 | 0.10 | 0.0594 | 84.17508 | ∞ | -2.8234 | | 7 | 0.11 | 0.0593 | 118.04384 | -9.2103 | -2.8251 | | 9 | 0.11 | 0.0592 | 151.77065 | -9.2103 | -1.8251 | | 11 | 0.13 | 0.0592 | 185.81081 | -8.5171 | -2.8268 | | 24 | 0.13 | 0.0592 | 405.40545 | -8.5171 | -2.8268 |
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