Research Article
Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
Table 3
Ammonium adsorption capacity for several adsorbents.
| Adsorbent | qmax (mg/g) | Isotherm | pH | T (°C) | Time (min) | Dose (g/L) | Reference |
| Natural zeolite | 10.39 | Langmuir | 7 | 25 | 1440 | 32 | Mazloomi and Jalali [48] | Geopolymer | 21.07 | Sips | 6 | 22 | 1440 | 5 | Luukkonen et al. [42] | Modified biochar | 22.6 | Langmuir | 8–9 | — | 120 | 2 | Vu et al. [6] | Natural zeolite | 23.83 | Sips | 6.5 | 25 | 1440 | 3 | Lei et al. [45] | Fly-ash zeolite | 37.45 | Langmuir | 8 | 25 | 75 | 4 | Zhang et al. [49] | Hydrogel | 42.74 | Langmuir | 6–7 | 30 | 30 | 2 | Zheng et al. [43] | Al-waste-NaP1 | 54.19 | Sips | 7.5 | 28 | 15 | 10 | This work | Fly ash-zeolite | 95.42 | Langmuir | 7 | 25 | 60 | 2 | Jiang et al. [36] |
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