Table 5.
Effect of adsorption time on the phosphate ion removal percent.
| Adsorption time (min) | 10 | 20 | 30 | 40 | 50 | 80 | 100 |
| Removal percent of phosphate ion (%) | 91.15 | 93.3 | 95.5 | 98.2 | 99.97 | 99.93 | 99.9 |
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