Research Article
Application of Glycyrrhiza glabra Root as a Novel Adsorbent in the Removal of Toluene Vapors: Equilibrium, Kinetic, and Thermodynamic Study
Table 1
Characteristics of the GGR (on the dry basis).
| Parameters | |
| Chemical composition (%) | |
| CaO | 4.83 | SiO2 | 1.76 | Al2O3 | 0.552 | Fe2O3 | 0.317 | SO3 | 0.243 | MgO | 0.186 | Na2O | 0.072 | K2O | 0.068 | P2O5 | 0.062 | SrO | 0.046 | Cl | 0.030 | ZnO | 0.019 | TiO2 | 0.017 | CuO | 0.011 | C | 44.6 | H | 5.33 | N | 1.47 |
| Physical characteristics | |
| pH | 7.4 | BET surface area (m2/g) | 1.532 | Particle diameter (cm) | 0.5–1 | Water holding capacity (g water/g dry GGR) | 2.9 | Bulk density (kg/m3) | 37.62 |
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