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AWWA ACE71091
- Effects of Alkalinity on Galvanic Corrosion of Lead Solder in Low Conductivity Waters
- Conference Proceeding by American Water Works Association, 11/01/2009
- Publisher: AWWA
$12.00$24.00
This powerpoint presentation begins by providing a brief overview of galvanic corrosion and the theory of alkalinity mitigatingcorrosion by acting as a buffer or bycontributing to formation of protectivepipe scale. Study objectives were to: reproduce this trend undercontrolled circumstances;determine if there is an "optimally bad"amount of alkalinity; and,examine mechanisms for the trend - pH at anode, chloride concentration at anode, andgalvanic current with conductivity. Part I involved dump and fill jar testing. Part II involved using a electrochemical test cell toexamine conductivity effect. Includes figures.
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