Corrosion Control Principles and Strategies for Reducing Lead and Copper in Drinking Water Systems

摘要

The newly promulgated Lead and Copper Rule is going to force substantial changes in the way water utilities of all sizes treat their water and control corrosion. Corrosion is fascinating in that the more learned about it the more it is realized that there are very few generalities. The paper emphasizes concepts associated with sampling, and the trade-offs in water quality associated with various methods of corrosion control. There are two parts to the paper. First, an overview of theplumbing and corrosion issues is presented. These apply to both building and domestic systems. The United States Environmental Protection Agency (USEPA) has begun to do research with some interesting building lead corrosion problems. The second part will discuss the joint project that the Water Quality Association (WQA) and USEPA are beginning to initiate, involving the impact of domestic-type water softeners on corrosivity.