Effects of blending on surface characteristics of copper corrosion products in drinking water distribution systems
Abbreviated Journal Title
copper; modelling studies; XPS; XRD; corrosion potential; ALKALINE PRECIPITATION; RELEASE; PH; Materials Science, Multidisciplinary; Metallurgy & Metallurgical; Engineering
Copper scales formed over 6-months during exposure to ground, surface and saline waters were characterized by EDS, XRD and XPS. Scale color and hardness were light red-brown-black/hard for high alkalinity and blue-green/soft for high SO4 or Cl waters. Cl was present in surface or saline copper scales. The Cu/Cu2O ratio decreased with time indicating an e transfer copper corrosion mechanism. Cu2O, CuO, and Cu(OH)(2) dominated the top 0.5-1 A degrees scale indicating continuous corrosion. Cu2O oxidation to CuO increased with alkalinity, and depended on time and pH. Total copper release was predicted using a Cu(OH)(2) model. (c) 2006 Elsevier Ltd. All rights reserved.
"Effects of blending on surface characteristics of copper corrosion products in drinking water distribution systems" (2007). Faculty Bibliography 2000s. 7805.