This powerpoint presentation begins by listing the major benefits of chloramines, and the drawbacks/unintended
consequences of chloramines. It defines nitrification as
the microbiological oxidation of ammonia to
nitrite and ultimately to nitrate. A table of Nitrite Monitoring and Trigger
Guidance for Distribution Systems is provided. A Southwest Case Study is presented, with topics consisting of: red water complaints; treatment train; source water and finished water quality; and,
first phase study design. Case study conclusions were that:
severe nitrification and corrosion in distribution system were leading to a
marked drop in disinfectant residuals,
an increase in HPC levels,
a reduction in pH on order of 1 unit
(less buffering capacity due to low alkalinity), and an
increase in iron release/turbidities;
nitrification occurring in areas of system not experiencing iron
corrosion (and upstream of areas where iron corrosion taking place;
interrelationships between nitrification, red water, and microbial
activity in system complex; and,
embarking on major study to better understand.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.7 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 23 |
| Published : | 06/01/2007 |
