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Potential Effects of Polyphosphate Products on Lead Solubility in Plumbing Systems
Author(s) -
Holm Thomas R.,
Shock Michael R.
Publication year - 1991
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1991.tb07182.x
Subject(s) - polyphosphate , solubility , lead (geology) , alkalinity , chemistry , corrosion , environmental science , phosphate , organic chemistry , geology , geomorphology
Lead concentrations in drinking water can be minimized by adjusting the pH and alkalinity. Such lead solubility controls, however, may be offset by other water treatment measures that inadvertently increase lead solubility, e.g., the adding of polyphosphate‐containing products. Through the use of solubility computations, the authors of this article conclude that, at best, the application of polyphosphates for the specific purpose of lead corrosion control entails considerable uncertainty and risk.