Table 1.
First-order apparent rate constants (k, sec-1) for permanganate decay with and without progestagens in wastewaters at 22 ± 2°C for pH 6.3 (WWTP B, DOC 7.7 mg C L-1) and 8.2 (WWTP A, COD 2.3 mg C L-1)a
| |
kKMO4(×10–3sec–1) |
|
|---|---|---|
| Progestagens | ||
|
Wastewaters |
pH 6.3 |
pH 8.2 |
| without SH |
0.57 ± 0.02 |
0.44 ± 0.06 |
| (0.99) |
(0.99) |
|
| with SH |
1.2 ± 0.1 |
1.13 ± 0.07 |
| (0.94) |
(0.98) |
|
|
Milli-Q water |
pH 6.0 |
pH 8.0 |
| with SH | 1.1 ± 0.2 |
1.0 ± 0.2 |
| (0.90) | (0.93) | |
a Values in parentheses represent coefficients of determination (R2) and uncertainties on k values represent calculated standard deviation (SD) given from the linear regression equation.