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- W1990668375 abstract "UV/H2O2 and UV/peroxodisulfate (PDS) processes were adopted to degrade a typical β-blocker atenolol (ATL). The degradation efficiencies under various operational parameters (oxidant dosage, pH, HCO−3, humic acid (HA), NO−3, and Cl−) were compared. Principal factor analysis was also performed with a statistical method for the two processes. It was found that increasing the specific dosage of the two peroxides ([peroxide]0/[ATL]0) ranging from 1:1 to 8:1 led to a faster degradation rate but also higher peroxide residual. Within the pH range 3–11, the optimum pH was 7 for the UV/PDS process and elevating pH benefitted the UV/H2O2 process. The presence of HCO−3, HA, and Cl− adversely affected ATL oxidation in both processes. The NO−3 concentration 1–3 mmol/L accelerated the destruction of ATL by the UV/PDS process, but further increase of NO−3 concentration retarded the degradation process, contrary to the case in the UV/H2O2 process. The rank orders of effects caused by the six operational parameters were pH ≈ specific dosage > [HA]0 > [NO−3]0 > [HCO−3]0 > [Cl−]0 for the UV/H2O2 process and specific dosage > pH > [HA]0 > [NO−3]0 > [HCO−]0 >[Cl−]0 for the UV/PDS process. The UV/PDS process was more sensitive to changes in operational parameters than the UV/H2O2 process but more efficient in ATL removal under the same conditions." @default.
- W1990668375 created "2016-06-24" @default.
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- W1990668375 date "2013-08-01" @default.
- W1990668375 modified "2023-09-28" @default.
- W1990668375 title "Comparison of UV/PDS and UV/H2O2 processes for the degradation of atenolol in water" @default.
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- W1990668375 doi "https://doi.org/10.1016/s1001-0742(12)60289-7" @default.
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