Matches in SemOpenAlex for { <https://semopenalex.org/work/W3011252641> ?p ?o ?g. }
- W3011252641 endingPage "115725" @default.
- W3011252641 startingPage "115725" @default.
- W3011252641 abstract "Sulfate radical-based advanced oxidation processes (SR-AOPs) show a good prospect for effective elimination of organic contaminants in water due to the powerful oxidation capability and good adaptability of sulfate radical (SO4•-). However, great concerns have been raised on occurrence of the carcinogenic byproduct bromate (BrO3-) in SR-AOPs. The present article aims to provide a critical review on BrO3- formation during bromine (Br)-containing water oxidation by various SR-AOPs. Potential reaction mechanisms are elaborated, mainly involving the sequential oxidation of bromide (Br-) by SO4•- to Br-containing radicals (e.g., bromine atom (Br•)) and then to hypobromous acid/hypobromite (HOBr/OBr-), which acts as the requisite intermediate for BrO3- formation. Some key influencing factors on BrO3- formation are discussed. Particularly, dissolved organic matter (DOM) as a component ubiquitously present in aquatic environments shows a significant suppression effect on BrO3- formation, primarily attributed to the reduction of Br• by DOM to Br-. The reaction of Br• with DOM can hardly produce organic brominated byproducts, while their formation is mainly due to the bromination of HOBr/OBr- generated through nonradical pathways such as the direct reaction of Br- with oxidants (e.g., peroxymonosulfate (PMS)) or other reactive species derived from catalytic activators (e.g., Co(III) in the Co(II)/PMS process). The debromination of brominated pollutants during their oxidation by SO4•- results in the release of Br-, which, however, is not further transformed to BrO3- until coexisting organic matters are mineralized nearly completely. Furthermore, possible strategies for control of BrO3- formation in SR-AOPs as well as the future research needs are proposed." @default.
- W3011252641 created "2020-03-23" @default.
- W3011252641 creator A5002352268 @default.
- W3011252641 creator A5002360271 @default.
- W3011252641 creator A5043530573 @default.
- W3011252641 creator A5065058975 @default.
- W3011252641 creator A5065347809 @default.
- W3011252641 creator A5077176563 @default.
- W3011252641 creator A5079027068 @default.
- W3011252641 date "2020-06-01" @default.
- W3011252641 modified "2023-10-17" @default.
- W3011252641 title "Formation and control of bromate in sulfate radical-based oxidation processes for the treatment of waters containing bromide: A critical review" @default.
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