Mineral: |
Hematite |
Reference: |
DLFJR03 |
SCM Type: |
CC - Constant Capacitance |
Ligand: |
SeO3<2->
- selenite
|
Site Type: |
»Fe-OH |
Equation: |
»Fe-OH + SeO3<2-> + H<1+> ⇔ »FeO-SeO2<1-> + H2O |
LogK: |
16.0
LogK2.31 nm−2 (SSD-normalized): 16.94
|
Experiment: |
Batch Sorption Experiments |
Ionic Strength: |
NaNO3
|
Temperature: |
298.0 K |
pH Range: |
2-12 |
Ligand Concentration Range: |
4E-4 and 2E-5 mol/L |
Fit Method: |
FITEQL |
Comment: |
1.3-6 g/L solid/liquid ratio; solid before and after sorption examined by SEM, XRD and XPS; sorption capacity for Se(IV) higher than SSD measured by pot.titration; surface coverage 0.1 and 0.5 sites/nm^2; 0.1 or 0.01M NaNO3: extrapolation to IS=0? |
|