Table 1.
Operational parameters for the full‐scale and pilot MBRs
| Parameter | Full‐scale MBR | Pilot MBR | |
|---|---|---|---|
| Posttreatment | Influent treatment | ||
| Inflowa (m3/h) | 220 ± 10 | 0.037 ± 0.005 | 0.045 ± 0.005 |
| Chemical oxygen demand (COD) (mg/L)a | 196 ± 55 | 22 ± 8 | 196 ± 55 |
| Mixed liquor suspended solids (MLSS)a (g/L) | 9.75 ± 0.75 | 0.75 ± 0.3 | 3.1 ± 0.9 |
| Total reactor volume (m3) | 1200 | 1 | 1 |
| Anoxic to aerobic volume ratio (L/L) | 500/650 | 550/450 | 550/450 |
| Membrane Type | GE ZW 500 | GE ZW 10 | GE ZW 10 |
| Membrane surface (m2) | 10 000 | 2 | 2 |
| Membrane pore size (μm) | 0.04 | 0.04 | 0.04 |
| Recirculation: influent flow ratio | 6:1 | 6:1 | 6:1 |
| T (°C) | 8–19 | 22.6 ± 1.9 | 22.9 ± 1.4 |
| pHa | 7.9 ± 0.4 | 5.5 ± 0.5 | 5.5 ± 0.5 |
| Bioaugmented Phoma sp. biomass (% of MLSSb) | 0 | 43 | 1 |
| Hydraulic retention time (HRT) (h) | 7 | 27 | 22 |
a
Mean ± standard deviation over the time period of operation indicated in Fig. 4.
b
On a dry weight basis.