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Effects of Adding UV and H2O2 on the Degradation of Pharmaceuticals and Personal Care Products during O3 Treatment
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  • Journal title : Environmental Engineering Research
  • Volume 16, Issue 3,  2011, pp.131-136
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2011.16.3.131
 Title & Authors
Effects of Adding UV and H2O2 on the Degradation of Pharmaceuticals and Personal Care Products during O3 Treatment
Kim, Il-Ho; Kim, Seog-Ku; Lee, Hyun-Dong; Tanaka, Hiroaki;
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The degradation of 30 pharmaceuticals and personal care products (PPCPs) subjected to , /UV, and treatments were investigated using semi-batch tests and evaluated by their pseudo-first-order rate constants. The additional application of UV or during treatment significantly improved the degradation rate of most of the PPCPs. At the same feed rate, /UV treatment exhibited much higher PPCP degradation efficiency than that of treatment. This was probably due to degradation of the PPCPs by , direct UV photodegradation, and OH radicals that formed from the photodegradation of during /UV treatment. PPCP degradation by was also promoted by adding during the treatment. However, when the initial concentration was high during treatment, OH radicals were likely to be scavenged by excess , leading to low PPCP degradation. Therefore, it is important to determine the appropriate dosage during treatment to improve PPCP degradation when adding during treatment.
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