Skip to main content

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

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

  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)
  1. 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.