Reactivity of Cyanobacteria Metabolites with Ozone: Multicompound Competition Kinetics.

ABSTRACT: Cyanobacterial blooms occur at increasing frequency and intensity, notably in freshwater. This leads to the introduction of complex mixtures of their products, i.e., cyano-metabolites, to drinking water treatment plants. To assess the fate of cyano-metabolite mixtures during ozonation, a novel multicompound ozone (O₃) competition kinetics method was developed. Sixteen competitors with known second-order rate constants for their reaction with O₃ ranging between 1 and 10⁸ M^-1 s^-1 were applied to cover a wide range of the O₃ reactivity. The apparent second-order rate constants (k_app,O3) at pH 7 were simultaneously determined for 31 cyano-metabolites. k_app,O3 for olefin- and phenol-containing

SUBMITTER: Rouge V 

PROVIDER: S-EPMC11223487 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature