Project #2587
Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion
$128,314
Principal Investigator
Marc
Edwards
Research Manager
Albert L Ilges
Contractor
Virginia Polytechnic Institute & State University
Abstract
Advances the scientific understanding of when, how, and why phosphate-based corrosion inhibitors work in potable waters. Answers critical questions of inhibitor solution chemistry on lead and copper solubility using laboratory tests. Uses pipe rig experiments to compare the effects of dosing orthophosphate and polyphosphate on lead and copper by-product release. Also optimizes inhibitor doses in water when beneficial effects of phosphate inhibitors are observed. Published in 2001.
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