Full Description

This powerpoint presentation begins by providing a brief overview of Fairfax Water (FW), the largest drinking water utility in Virginia. Historical corrosion control facts are presented, and FW changed to a chemical corrosioncontrol inhibitor (ZnPOsub4/sub) in 1998. Competing regulations including the Safe Drinking Water Act (SDWA) and the Lead and Copper Rule (LCR) vs. the Clean Water Act (CWA) and NPDES caused FW to change their corrosion control inhibitor. The Virginia Department of Health recommended a pipeloop study to determine whether thechange in the corrosion inhibitorchemical would affect Pbconcentrations. The study demonstrated that there was not a difference betweenthe use of ZnPOsub4/sub and Hsub3/subPOsub4/sub as acorrosion control inhibitor in thisapplication. The pros and cons of the switchfrom ZnPOsub4/sub to Hsub3/subPOsub4/sub are listed. Includes figures.

Product Details

Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 25File Size: 1 file , 1.6 MB