Traditional chloramine practice involves the addition
of ammonia and chlorine nearly simultaneously,
minimizing the presence of free chlorine. However,
many drinking water treatment plants are not practicing
traditional chloramination; they now have a
significant period of free chlorine exposure that can
accentuate disinfection byproduct (DBP) formation.
This article investigates the effects of treatment, pH,
and prechlorination on dihaloacetic acid (X<sub>2</sub>AA)
formation kinetics.
The data obtained and subsequent conclusions
drawn provide new insight into X<sub>2</sub>AA formation and
control during chloramination to help ensure that chloramination
remains a viable treatment option. With
many utilities facing a balancing act regarding chlorine,
chloramines, and concentration times time requirements,
a better understanding of X<sub>2</sub>AA formation
kinetics with chloramines is essential input in the complicated
decision-making process of weighing disinfection
requirements against DBP formation. Includes 37 references, tables, figures.
| Edition : | Vol. 98 - No. 11 |
| File Size : | 1
file
, 490 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 14 |
| Published : | 11/01/2006 |
