Can I read Oxidation of Pharmaceuticals during Ozonation and Advanced Oxidation Processes on EtoBox?

Oxidation of Pharmaceuticals during Ozonation and Advanced Oxidation Processes by Marc M. Huber; Silvio Canonica; Gun-Young Park; Urs von Gunten is a Environmental Science article available to read on EtoBox.

What is Oxidation of Pharmaceuticals during Ozonation and Advanced Oxidation Processes about?

This study investigates the oxidation of pharmaceuticals during conventional ozonation and advanced oxidation processes (AOPs) applied in drinking water treatment. In a first step, second-order rate constants for the reactions of selected pharmaceuticals with ozone (k(O3)) and OH radicals (k(OH)) were determined in bench-scale experiments (in brackets apparent k(O3) at pH 7 and T = 20 degrees C): bezafibrate (590 +/- 50 M(-1) s(-1)), carbamazepine (approximately 3 x 10(5) M(-1) s(-1)), diazepam (0.75 +/- 0.15 M(-1) s(-1)), diclofenac (approximately 1 x 10(6) M(-1) s(-1)), 17alpha-ethinylestradiol (approximately 3 x 10(6) M(-1) s(-1)), ibuprofen (9.6 +/- 1.0 M(-1) s(-1)), iopromide ( 5 x 10(4) M(-1) s(-1), indicating that these compounds are completely transformed during ozonation processes. Values for k(OH) ranged from 3.3 to 9.8 x 10(9) M(-1) s(-1). Compared to other important micropollutants such as MTBE and atrazine, the selected pharmaceuticals reacted about two to three times faster with OH radicals. In the second part of the study, oxidation kinetics of the selected pharmaceuticals were investigated in ozonation experiments performed in different natural waters. It could be s

Who reads Oxidation of Pharmaceuticals during Ozonation and Advanced Oxidation Processes?

Author

Marc M. Huber; Silvio Canonica; Gun-Young Park; Urs von Gunten

Publisher

American Chemical Society; American Chemical Society (ACS); Publons; Test accounts (ISSN 0013-936X)

Published

2003

Language

EN

Field

Environmental Science (Physical Sciences)