Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

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.

Resources

Public Plus

Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Report

#90823

06/01/2001

View Executive Summary

Related Projects

Recently

Project #157

Distribution System Water Quality Changes Following Corrosion Control Strategies

Completed

Evaluates the impact of plant-scale implementation of corrosion control for lead and copper on water quality in the distribution system (e.g., red water, turbidity, biological growth). Reports on...

View more details

Project #4164

Lead and Copper Corrosion Control in New Construction

Completed

This project developed guidance on how to minimize and/or prevent lead and copper corrosion in the premise plumbing in new or rehabilitated construction projects, including, but not limited...

View more details

Project #4693

Lead Service Line Identification Techniques

Completed

Developing an accurate inventory of lead service lines (LSLs) is a challenge facing many water utilities. The water sector has relied on indirect methods that use historical records...

View more details

Project #5223

Guidance for Complying with the Lead and Copper Rule Revisions for Water Systems with No- to Low Prevalence of Lead Service Lines (LSL, LSLs)

In Progress

Presently 15 to 22 million Americans nationally are served drinking water by lead lines. While most utilities employ effective corrosion control that limits the release of lead, the...

View more details

Project #5106

Post-Wildfire Distribution System Water Quality Impacts and Potential Responses

In Progress

As a result of climate change, the number and severity of wildfires in the western United States are increasing. Volatile organic compound (VOC) and semi-VOC contamination has been...

View more details

Project #5081

Guidance for Using Pipe Rigs to Inform Lead and Copper Corrosion Control Treatment Decisions

In Progress

View more details

Diversifying Water Portfolios through Stormwater Capture and Use: Contributing to a Water Resilient Future

Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Abstract

Resources

Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Distribution System Water Quality Changes Following Corrosion Control Strategies

Lead and Copper Corrosion Control in New Construction

Lead Service Line Identification Techniques

Guidance for Complying with the Lead and Copper Rule Revisions for Water Systems with No- to Low Prevalence of Lead Service Lines (LSL, LSLs)

Post-Wildfire Distribution System Water Quality Impacts and Potential Responses

Guidance for Using Pipe Rigs to Inform Lead and Copper Corrosion Control Treatment Decisions

Diversifying Water Portfolios through Stormwater Capture and Use: Contributing to a Water Resilient Future