Oxidation of microcystins by permanganate: pH and temperature-dependent kinetics, effect of DOM characteristics, and oxidation mechanism revisited
Oxidative degradation of six representative microcystins (MCs)(MC-RR,-LR,-YR,-LF,-LW,
and-LA) by potassium permanganate (KMnO4; Mn (VII)) was investigated, focusing on the
temperature-and pH-dependent reaction kinetics, the effect of dissolved organic matter
(DOM), and the oxidation mechanisms. Second-order rate constants for the reactions of the
six MCs with Mn (VII)(k Mn (VII), MC) were determined to be 160.4–520.1 M–1 s–1 (MC-RR>-
LR≈-YR>-LF≈-LW>-LA) at pH 7.2 and 21° C. The k Mn (VII), MC values exhibited …
and-LA) by potassium permanganate (KMnO4; Mn (VII)) was investigated, focusing on the
temperature-and pH-dependent reaction kinetics, the effect of dissolved organic matter
(DOM), and the oxidation mechanisms. Second-order rate constants for the reactions of the
six MCs with Mn (VII)(k Mn (VII), MC) were determined to be 160.4–520.1 M–1 s–1 (MC-RR>-
LR≈-YR>-LF≈-LW>-LA) at pH 7.2 and 21° C. The k Mn (VII), MC values exhibited …
Oxidation of microcystins by permanganate: pH and temperature-dependent kinetics, effect of DOM characteristics, and oxidation mechanism revisited.
KMS Kim MinSik, LHJ Lee HyeJin, LKM Lee KiMyeong… - 2018 - cabidigitallibrary.org
Oxidative degradation of six representative microcystins (MCs)(MC-RR,-LR,-YR,-LF,-LW,
and-LA) by potassium permanganate (KMnO4; Mn (VII)) was investigated, focusing on the
temperature-and pH-dependent reaction kinetics, the effect of dissolved organic matter
(DOM), and the oxidation mechanisms. Second-order rate constants for the reactions of the
six MCs with Mn (VII)(k Mn (VII), MC) were determined to be 160.4-520.1 M-1 s-1 (MC-RR>-
LR∼-YR>-LF∼-LW>-LA) at pH 7.2 and 21° C. The k Mn (VII), MC values exhibited …
and-LA) by potassium permanganate (KMnO4; Mn (VII)) was investigated, focusing on the
temperature-and pH-dependent reaction kinetics, the effect of dissolved organic matter
(DOM), and the oxidation mechanisms. Second-order rate constants for the reactions of the
six MCs with Mn (VII)(k Mn (VII), MC) were determined to be 160.4-520.1 M-1 s-1 (MC-RR>-
LR∼-YR>-LF∼-LW>-LA) at pH 7.2 and 21° C. The k Mn (VII), MC values exhibited …
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