AWWA ACE56286

Colored water problems can be reduced by removing source water iron, controlling corrosionand iron release from corrosion scales, and controlling the form of iron precipitates. Chemicals suchas silicate or polyphosphate may be used to reduce the amount of noticeable iron precipitate. Thisapproach may be used to reduce the impacts of both source water iron and iron released fromdistribution system materials. Corrosion may be controlled by proper control of pH, alkalinity andhardness, as well as through the use of corrosion inhibitors such as orthophosphate. The objectiveof this research was to evaluate the effect of orthophosphate and several polyphosphates on theproperties of iron particles and aqueous iron suspensions formed from the oxygenation of Fe(II). Details are given of the materials and methods used, which include: reaction cell; water; chemicals; analytical methods; experimental procedure; and, particle analysis. Includes 23 references.

Product Details

Edition:

Vol. - No.

Published:

06/16/2002

Number of Pages:

9

File Size:

1 file , 330 KB