This slide presentation outlines a pilot study for treating taste and odor compounds and the characterization of disinfection byproduct formation that had the objectives of: optimizing peroxide dose based on
Electrical-Energy-per-Order (EEO) for
reduction of geosmin and 2-MIB;
monitoring the effect of AOP on chlorine
decay; and,
monitor disinfection byproduct (DBP)
formation following chlorination. The reasons for optimizing peroxide dose are outlined as follows: H<sub>2</sub>O<sub>2</sub> exerts chlorine demand;
removal of H<sub>2</sub>O<sub>2</sub>: addition of excess chlorine, and
operational concerns (correct dosing); and,
optimal H<sub>2</sub>O<sub>2</sub> dose from practical
standpoint needs to be
as low as possible,
effective taste and odor removal, and
minimize costs. The second objective involved:
testing hypothesis that AOP alters chlorine
decay characteristics of a sample through
altering NOM;
testing initial water, UV photolysis alone, AOP
treatment (UV/H<sub>2</sub>O<sub>2</sub>)
- 1.5, 2.5, 4 mg/L chlorine;
monitor free chlorine residual at 15 min,
1 hour, 24 hrs, 48 hrs; and,
increasing chlorine consumption may impact
DBP production. The third objective of DBP formation
following chlorination involved:
peroxide quenched with 0.2 mg/L
catalase enzyme;
NaOCl dosed to result in residual
of 1 mg/L after 24 hrs (2.5 mg/L);
simulated distribution system
(SDS) testing: 15 min, 24 & 48 hrs; and,
measure THM and HAA9. Includes 2 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 870 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 22 |
| Published : | 11/01/2005 |
