The City of Arlington began experiencing atypical water quality problems in
1999 with the introduction of ozonation and biofiltration to the conventional
treatment processes. These problems included high chloramine residual decay rates, and
system nitrification and manganese in the finished water that were linked to water
produced at the Pierce-Burch South Water Treatment facility. After reviewing
existing data and literature, and pilot plant and "bottle" testing, it was determined that
improvements could be made to the water quality through treatment plant modifications in both design and process that included the following:
modifications to the chemical feed points;
process changes to how plant biofilters are operated; and,
changing the biofilter backwash to non-chloraminated water. Includes table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 740 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 8 |
| Published : | 11/01/2008 |
