• AWWA ACE94138
Provide PDF Format

Learn More

AWWA ACE94138

  • Interactions Between Natural Organic Matter and Copper Surfaces in Potable Water: Effects of Calcium
  • Conference Proceeding by American Water Works Association, 01/01/1994
  • Publisher: AWWA

$12.00$24.00


Under the water quality conditions in this study, NOM significantly increased the release of copper corrosion byproducts. This increase was too large to be explained by NOM-copper complex formation. NOM also decreased the electrochemically measured corrosion rate of copper. Calcium did not significantly affect either copper release or the corrosion rate. In these jar tests significantly more copper is oxidized than is solubilized without NOM. These quantitative measures of the corrosion process were supported by visual observations of the coupon surface. NOM modifies the type of scale formed on the copper surface. In the absence of NOM, the scale consisted of a discontinuous layer of coarse malachite crystals. In the presence of NOM, the scale is thinner and more homogeneous. From measurements of the Tafel slopes, it appears that NOM affects the anodic corrosion reactions more than the cathodic reactions.

Related Products

AWWA JAW23801

AWWA JAW23801

Journal AWWA - Controlling Swampy Odors in Drinking Water ..

$15.00 $30.00

AWWA DSS60350

AWWA DSS60350

Design, Construction and Operation of Denver's New Recycled Water System..

$12.00 $24.00

AWWA JAW64847

AWWA JAW64847

Journal AWWA - Process-Train Profiles of NOM through a Drinking Water Treatment Plant..

$15.00 $30.00

AWWA JAW59515

AWWA JAW59515

Journal AWWA - Expanded Summary: Protecting Watersheds from Cryptosporidium in Manure: A Literature ..

$15.00 $30.00