Research Article

Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

Table 3

Ammonium adsorption capacity for several adsorbents.

Adsorbentqmax (mg/g)IsothermpHT (°C)Time (min)Dose (g/L)Reference

Natural zeolite10.39Langmuir725144032Mazloomi and Jalali [48]
Geopolymer21.07Sips62214405Luukkonen et al. [42]
Modified biochar22.6Langmuir8–91202Vu et al. [6]
Natural zeolite23.83Sips6.52514403Lei et al. [45]
Fly-ash zeolite37.45Langmuir825754Zhang et al. [49]
Hydrogel42.74Langmuir6–730302Zheng et al. [43]
Al-waste-NaP154.19Sips7.5281510This work
Fly ash-zeolite95.42Langmuir725602Jiang et al. [36]