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Table 2 Steroid hormone (SH) oxidation rate constants ( k , M-1sec-1), removal efficiency (%) between 10 and 60 min and half-lives ( t 1/2 , min) derived from oxidation experiments using permanganate in Milli-Q and wastewaters (WWTP A, pH 8.2, DOC 2.3 mg C L-1and WWTP B, pH 6.3, COD 7.7 mg C L-1) at 22 ± 2°C for pH 6.0 and 8.0a

From: Degradation of progestagens by oxidation with potassium permanganate in wastewater effluents

Compounds Milli-Q water Wastewaters
kKMnO4-SH(M–1 sec–1) Removal (%) t1/2(min) kKMnO4-SH(M–1 sec–1) Removal (%) t1/2(min)
pH 6.0 pH 8.0 pH 6.0 pH 8.0 pH 6.0 pH 8.0 pH 6.3 pH 8.2 pH 6.3 pH 8.2 pH 6.0 pH 8.0
LEVO 179 ± 10 199 ± 6 89 ± 12 89 ± 12 5.6 5.0 180 ± 5 302 ± 9 97 ± 8 90 ± 1 5.6 3.3
(0.96) (0.98)      (0.96) (0.98)     
MEDRO 73 ± 2 80 ± 2 57 ± 20 58 ± 12 14 12 49 ± 2 159 ± 4 71 ± 1 87 ± 4 2.1 6.3
(0.98) (0.98)      (0.98) (0.99)     
NORE 219 ± 13 224 ± 8 90 ± 11 78 ± 3 4.6 4.5 257 ± 10 368 ± 11 96 ± 2 92 ± 1 3.9 2.7
(0.96) (0.97)      (0.98) (0.98)     
PROG 28 ± 2 23 ± 1 48 ± 11 41 ± 5 36 44 26 ± 2 109 ± 4 58 ± 3 80 ± 20 38 9.2
(0.97) (0.98)      (0.98) (0.98)     
  1. a Values in parentheses represent coefficients of determination (R2) and uncertainties on k values represent calculated standard deviations (SD) given from the linear regression equation. Uncertainties on removal values represent standard deviations (SD) between replicates (n = 2).