Over time, deposits (mineral precipitant scale, corrosion byproducts and microbiological
growth) in waterlines reduce the carrying capacity of the main, reduce distribution system
pressures, increase pump energy costs and may result in safety concerns for the public.
There are many options for improving flows in piping that is experiencing deposition.
These options can include either mechanical or chemical means. One of the chemical
options that are widely used is phosphate treatment. Properly selected and dosed
phosphate products can remove deposits and prevent mineral scale, corrosion byproducts
and microbiological growth from reoccurring. This paper gives calculated electrical
costs for different size piping and relates that to the effects of scale or mineral depositions.
The effects of phosphate treatment is demonstrated by a case study of a Midwestern
utility that realized a 12% reduction in electric pumping costs and improved hydrant
flows averaging 65%. Includes 5 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 890 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 7 |
| Published : | 06/15/2003 |
