Table 1.
Comparison among different chemical treatments.
| # | Pretreatment | Chemical Agent | Temperature (°C) | Time (min) | pH |
|---|---|---|---|---|---|
| 1 | Acid-organosolv (AA) | glacial acetic acid:acetone:water (10:50:40) | 100 | 30 | 2.7 |
| 2 | Alcohol-organosolv (ET) | 96% Ethanol | 100 | 30 | - |
| 3 | Sodium Hypochlorite (SH) | NaClO 5% | 25 | 30 | 11 |
| 4 | Hypochlorous acid (ECA) | HClO/ClO− | 25 | 10 | 6 |
| 5 | Hydrogen Peroxide (HP) | H2O2 2% | 25 | 90 | - |
| 6 | Hydrogen Peroxide Alkaline (HPA) | H2O2 2% + NaOH 5% | 25 | 90 | 14 |
| 7 | Hypochlorous acid + Acid-organosolv (ECA+AA) | Treat.#4 + Treat.#1 | |||
| 8 | Hypochlorous acid + Alcohol-organosolv (ECA+ET) | Treat.#4 + Treat.#2 | |||