Advances in Civil Engineering / 2019 / Article / Tab 2

Research Article

Adsorption Property of Pb(II) by the Laterite-Bentonite Mixture Used as Waste Landfill Liner

Table 2

Basic properties of GMZ bentonite.

Specific gravity, Gs2.66
Liquid limit, ωL (%)276
Plastic limit, ωp (%)37
Total specific surface area (m2·g−1)570
Cation exchange capacity (cmol·kg−1)77.30
Main exchange cations (cmol·kg−1)Na+ (43.36); 1/2 Ca2+ (14.57); 1/2 Mg2+ (6.17); K+ (2.51)
Mineral component (%)Montmorillonite (75.4), quartz (11.7) cristobalite (7.3); feldspar (4.3); Kaolinite (0.8); calcite (0.5)
Chemical component (%)SiO2 (67.43), Al2O3 (14.20), Na2O (1.75), CaO (1.13)

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