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Characterization results for silica, alumina, and montmorillonite (MMT) minerals used as •OH scavengers in Fe-AHP and UV-AHP oxidation experiments.
| Mineral | Specific Surfacea Area (m2/g) | pHPZC b | FeTotal (mg/kg) | MnTotal (mg/kg) |
|---|---|---|---|---|
| Silica | 2.3 ± 0.2 | 2.0 | 238 | BQLc |
| Alumina | 1.5 ± 0.3 | 8.5 | 19 | BQLc |
| MMT | 82.2 ± 3.5 | 2.5 | 8065 | 248 |
silica (n = 3); alumina (n = 8); MMT (n = 6).
BQL = below quantitation limit (8.1 mg/kg for Mn, 4.0 mg/kg for Fe).
