Kinetics and degradation mechanism of Benzophenone-3 in chlorination and UV/chlorination reactions

doi:10.1016/j.cej.2020.124780

Paper

Kinetics and degradation mechanism of Benzophenone-3 in chlorination and UV/chlorination reactions

Published Aug 1, 2020 · Young-Min Lee, Gowoon Lee, Moonkyung Kim

Chemical Engineering Journal

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36

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Abstract

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Study Snapshot

Benzophenone-3 degradation in water occurs mainly through electrophilic aromatic halogenation, with the highest degradation rate at pH 8, and is enhanced by HCO3 ions and inhibited by humic acid.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Kinetics and degradation mechanism of Benzophenone-3 in chlorination and UV/chlorination reactions

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References

Two-generational effects of Benzophenone-3 on the aquatic midge Chironomus riparius.

Benzophenone-3 exposure impairs the emergence and development time of the aquatic midge Chironomus riparius over two generations, highlighting the need for full life cycle and multigenerational assays to evaluate the population-level effects of organic UV-filters.

Degradation kinetics and pathways of β-cyclocitral and β-ionone during UV photolysis and UV/chlorination reactions.

UV-chlorination is the most effective method for removing algal odorants like -cyclocitral and -ionone from drinking water, with -ionone showing faster degradation due to its double bond in the alkyl carbon chain.

Degradation kinetics and pathway of 1H-benzotriazole during UV/chlorination process

The UV-A/chlorination process effectively removes 1H-benzotriazole (BTA) from water, reducing toxicity and promoting mineralization within 12 hours.

The role of reactive oxygen species and carbonate radical in oxcarbazepine degradation via UV, UV/H2O2: Kinetics, mechanisms and toxicity evaluation.

Oxcarbazepine degradation via UV and UV/H2O2 is primarily driven by reactive oxygen species and carbonate radicals, with CO3• playing a positive role in the process, and its acute toxicity is lower.

Destruction of phenicol antibiotics using the UV/H2O2 process: Kinetics, byproducts, toxicity evaluation and trichloromethane formation potential

UV/H2O2 degradation of phenicol antibiotics can reduce toxicity and trichloromethane formation potential, but may decrease antimicrobial properties and ecotoxicity in fish, daphnid, and green algae.

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