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Release of accumulated arsenic from distribution pipes into tap water after arsenic treatment of source water- presentation
Citation:
Triantafyllidou, S., D. Lytle, T. Sorg, AND C. Muhlen. Release of accumulated arsenic from distribution pipes into tap water after arsenic treatment of source water- presentation. Water Quality Technology Conference & Exposition, Indianapolis, Indiana, November 13 - 17, 2016.
Impact/Purpose:
To inform the public of arsenic accumulation in distribution systems and release mechanisms.
Description:
Toxic arsenic (As) is known to incorporate from source well water onto the scales of distribution system pipes such as iron, copper, galvanized steel and even plastic containing internal buildup of iron coatings (Lytle et al., 2010, 2004; Schock, 2015; Reiber and Dostal, 2000). Water quality, treatment or distribution operational changes can disturb the distribution system and cause the release of the accumulated contaminant back into the drinking water. Consumers could unknowingly be exposed to elevated arsenic levels during these episodes, which may go undetected since water testing in the distribution system is not required for arsenic and most other inorganic contaminants.
URLs/Downloads:
https://www.awwa.org/Portals/0/files/education/conferences/wqtc/wqtc16/pdfs/!4615WQ16ProgramFINALWEB.pdf