Table 3 Temperature effect on first-order apparent rate constants ( k , sec-1), oxidation rate constants ( k , M-1 sec-1) and activation energy (E a , KJ mol-1) for permanganate decay with and without progestagens (SH) in wastewater at pH 8.2 (WWTP A)a
From: Degradation of progestagens by oxidation with potassium permanganate in wastewater effluents
Compounds | Natural waters WWTP A (pH 8.2) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
kKMnO4(×10–4 sec–1) without SH | kKMnO4-SH(M–1 sec–1) | Ea(KJ mol-1) | |||||||
5°C | 15°C | 22°C | 30°C | 5°C | 15°C | 22°C | 30°C | ||
LEVO | 184 ± 5 | 278 ± 9 | 302 ± 9 | 389 ± 13 | 20 ± 2 | ||||
(0.99) | (0.98) | (0.99) | (0.98) | ||||||
MEDRO | 58 ± 1 | 115 ± 3 | 159 ± 4 | 171 ± 5 | 31 ± 2 | ||||
1.9 ± 0.2 | 1.8 ± 0.8 | 4.4 ± 0.6 | 5.4 ± 0.2 | (0.99) | (0.99) | (0.99) | (0.98) | ||
(0.98) | (0.82) | (0.99) | (0.94) | 172 ± 8 | 288 ± 12 | 368 ± 11 | 429 ± 13 | 26 ± 2 | |
(0.97) | (0.98) | (0.99) | (0.98) | ||||||
PROG | 48 ± 1 | 89 ± 2 | 109 ± 3 | 112 ± 3 | 23 ± 7 | ||||
(0.99) | (0.99) | (0.93) | (0.99) | ||||||