Utilities are implementing lead remediation strategies, such as the addition of
phosphate, to control lead concentrations in their distribution systems. This research
monitors the transformation of hydrocerussite to lower solubility lead phosphates in real-time, using Raman spectroscopy in a flow through reactor. The data will then be used to
develop conceptual models for the specific processes governing the transformation of
hydrocerussite to lead phosphates. Important processes include: dissolution, nucleation
and crystal growth, particle-particle interactions, or direct solid-state conversion. In the
near future, mathematical models for each approach are being tested to provide insight
into the transformation process. Includes 20 references, figures.