TABLE 1.
SCN feed concentration (HRT) | SCN loading rate (mM/hr) | Rl | R2 | R3 | R4 | R5 |
50 mg/L (24 h) | 0.036 | M | M | M | M | W |
250 mg/L (12 h) | 0.36 | M | M↓ | M | M | W |
250 mg/L (12 h) | 0.36 | M | W↓ | W | W | |
500 mg/L (12 h) | 0.72 | M | W | W | ||
750 mg/L (12 h) | 1.08 | M | W | W | ||
750 mg/L (12 h) | 1.08 | M | W | W | ||
1500 mg/L (12 h) | 2.15 | M | W | W | ||
2000 mg/L (12 h) | 2.87 | M | W | W |
The table indicates continuously supplied thiocyanate feed concentrations, hydraulic retention times (HRT), and loading rates in molasses (M) or water-based (W) reactor systems (R1–R5). The arrows in the Table indicate the points from which the experimental conditions in the reactors were held at a SCN– feed concentration of 250 mg/L (0.36 mM/h).