Contrasting hydrogen peroxide- and persulfate-driven oxidation systems: Impact of radical scavenging on treatment efficiency and cost.

ABSTRACT: For the first time, the fate of radicals generated in heterogeneous chemical oxidation treatment systems has been accounted for and used to assess treatment performance in three reaction compartments; reaction with the target compound, rhodamine B (RhB), the aqueous phase scavengers, and the solid phase scavengers. Radicals formed during the ultra-violet (UV) activation of hydrogen peroxide (H₂O₂) (UV-AHP) and persulfate (S₂O₈ ^2-) (UV-APS) include hydroxyl (•OH) and sulfate radicals (SO₄ ^•-), respectively. •OH and SO₄ ^•-, used in oxidation treatment systems to degrade a broad spectrum of environmental contaminants, may also react with non-target chemical species (scavengers) that limit treatm

SUBMITTER: Crincoli KR 

PROVIDER: S-EPMC8193818 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature