Effects of blending on surface characteristics of copper corrosion products in drinking water distribution systems

被引：33

作者：

Xiao, Weizhong

Hong, Seungkwan

Tang, Zhijian

Seal, Sudipta

Taylor, James S.

机构：

[1] Korea Univ, Dept Civil & Environm Engn, Seoul 136701, South Korea

[2] ZFI, Water Engn & Sci, Orlando, FL 32826 USA

[3] Penn State Harrisburg, Environm Engn, Middletown, PA 17057 USA

[4] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA

[5] Univ Cent Florida, Nanosci & Technol Ctr, NSTC, Orlando, FL 32816 USA

[6] Univ Cent Florida, Dept Civil & Environm Engn, Orlando, FL 32816 USA

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 02期

关键词：

copper; modelling studies; XPS; XRD; corrosion potential;

D O I：

10.1016/j.corsci.2006.04.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：449 / 468

页数：20

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