Degradation of Paracetamol by an UV/Chlorine Advanced Oxidation Process: Influencing Factors, Factorial Design, and Intermediates Identification.

ABSTRACT: The combination of a low-pressure mercury lamp and chlorine (UV/chlorine) was applied as an emerging advanced oxidation process (AOP), to examine paracetamol (PRC) degradation under different operational conditions. The results indicated that the UV/chlorine process exhibited a much faster PRC removal than the UV/H₂O₂ process or chlorination alone because of the great contribution of highly reactive species (^•OH, ^•Cl, and ClO^•). The PRC degradation rate constant (k_obs) was accurately determined by pseudo-first-order kinetics. The k_obs values were strongly affected by the operational conditions, such as chlorine dosage, solution pH, UV intensity, and coexisting natural organic matter. Response surface methodology was used

SUBMITTER: Dao YH 

PROVIDER: S-EPMC6313806 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature