A pilot-scale distribution system was constructed using aged pipe materials obtained
from the Tampa Bay Water member governments' distribution systems (PVC, unlined
cast iron, lined iron, and galvanized). Pilot-scale treatment facilities were developed to
provide finished water representing current and anticipated supplies in the Tampa Bay
Water service area. After a three-month period of equilibration, different blends of the
finished waters were introduced into the pilot distribution system. Water quality impacts
were documented, including elevation of apparent color, iron, and turbidity. This
impairment of water quality is believed to result from the release of corrosion products
from the interior surface of the unlined cast iron and galvanized pipe materials.
Introduction of source waters with the greatest disparity from historic groundwater
sources posed the greatest potential for water quality alteration. Source water
characteristics that appear to be relevant include alkalinity, chloride, conductivity, and
sulfate. Experimentation is continuing with objectives to investigate mitigation
measures. Includes reference, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 290 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 19 |
| Published : | 11/01/2002 |
