Table 2.
Operations of GAC/sand columns with AOM and MC-LR.
| EBCT(min) | Column 1a | Column 2a | Column 3 | Column 4 | Column 5 b | |
|---|---|---|---|---|---|---|
| Day 1–159 | 20 | FI | FI | FI | FI | FI |
| Day 160–178 | 20 | FI | FI/AOM | FI/AOM | Dismantled c | FI/AOM |
| Day 179–208 | 20 | FI | FI/AOM/MC-LR | FI/AOM/MC-LR | x | FI/AOM/MC-LR |
| Day 209–242 | 10 | FI | FI/AOM/MC-LR | FI/AOM/MC-LR | x | FI/AOM/MC-LR |
FI: Filter influent for the column operation was obtained from a DWTP.
a
Filter biomass was inoculated before operation to facilitate the formation of biofilm.
b
Column 5 was regularly sterilized by autoclaving (10 min at 121 °C).
c
Column 4 was dismantled at day 159 and filter media samples were collected.