Stage | Phase | Weeks | Treatment |
---|---|---|---|
Process reconditioning | I | 0 (day 0–1) | pH reduction with acetic acid (15 g_VS L−1 in total) |
 | II | 0 (days 2–5) and 1 | Dilution with tap water at 37°C (25 mL L−1 d_feed−1) |
 | III | 2 to 3 | Re-inoculation with LNR effluents (6.5 mL L−1 d_feed−1); Water dilution* |
Process recovery | / | 4 to 7 | Re-inoculation with LNR effluents (6.5 mL L−1 d_feed−1); Feeding with sugar beet pulp (0.5 → 2 g_VS L−1 d_feed−1); Water dilution* |
Process stability test | / | 8 to 11 | Feeding with sugar beet pulp (2 g_VS L−1 d_feed−1); Water dilution* |