This powerpoint presentation begins by providing a brief overview of taste and odor in drinking water and the dual purpose of ultraviolet- (UV)- based advanced oxidation process (AOP). Kinetic experiment conditions are presented, along with a reactor scale-up study, modeling input parameters, direct UV photolysis, UV-H<sub>2</sub>O<sub>2</sub> AOP, and UV-H<sub>2</sub>O<sub>2</sub> alternatives in drinking water treatment plants (WTPs). Presentation conclusions indicate that: geosmin, 2-MIB, pyrazines and anisoles were successfully
reduced to below OTC levels using UV-H<sub>2</sub>O<sub>2</sub> and UV-HOCl;
in UV-H<sub>2</sub>O<sub>2</sub> scale-up study, natural organic matter (NOM) and H<sub>2</sub>O<sub>2</sub> dose were
major key factors, rather than pH and carbonate alkalinity;
T&O decay rates increased with the following order of
treatments: UV (1) < UV-NO<sub>3</sub><sup>-</sup> (4) < UV-H<sub>2</sub>O<sub>2</sub> (9) < UVHOCl
(40); and,
the result leads to the possibility of using HOCl together
with UV in an AOP system; however, a potential problem
is disinfection byproduct (DBP) formation due to high chlorine doses. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.4 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 26 |
| Published : | 11/01/2009 |
