Iron corrosion in water distribution networks is of special concern in the drinking water
industry because of the large amount of unlined iron pipe that is in use. Corrosion can destroy the
pipe, consume oxidants and disinfectants in the water, create scales that increase the energy
required to deliver water, support biofilm growth, and produce suspensions of iron particles that
give drinking water a dirty appearance. While factors that affect the corrosion of clean iron
surfaces have been extensively studied, the chemistry of scales that form on the pipe surface,
scale reactions that result in the formation of colored water, and the effect of water chemistry on
the properties of the resulting particles are not well understood. The objective of this paper is to
present an overview of a conceptual model to describe the formation and growth of iron scales,
and their reactions that lead to colored water. It is intended that the model be used as a
basis for changing water quality to minimize colored water formation and as a guide for further
research. Several aspects of the model require verification by further research. Includes 17 references.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 450 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 10 |
| Published : | 06/15/2003 |
