Copper corrosion in drinking water distribution systems - The influence of water quality

被引：49

作者：

Broo, AE ^{[1
]}

Berghult, B ^{[1
]}

Hedberg, T ^{[1
]}

机构：

[1] CHALMERS UNIV TECHNOL,DEPT SANITARY ENGN,GOTHENBURG,SWEDEN

来源：

CORROSION SCIENCE | 1997年 / 39卷 / 06期

关键词：

copper; potentiodynamic; weight loss; oxidation; thermodynamic;

D O I：

10.1016/S0010-938X(97)00026-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The copper corrosion in drinking water was studied using potentiodynamic sweeps, coupon tests and field measurements in different Swedish municipalities. The results were compared with equilibrium calculations. It was shown that for the first hours of water stagnation the system is not at equilibrium and the copper content is determined by the corrosion process. In the absence of calcium the corrosion rate increases linearly with the logarithm of the free carbon dioxide content (the sum of protonated carbonic acid and dissolved carbon dioxide). In the presence of calcium both the corrosion rate and the copper concentration in the water increases with the ratio between the free carbon dioxide and the calcium content. Presence of chloride ions in normal drinking water concentrations decreases the corrosion rate. (C) 1997 Elsevier Science Ltd.

引用

页码：1119 / 1132

页数：14

共 24 条

[1]

DODRILL DM, 1995, J AM WATER WORKS ASS, V87, P74

[2] COPPER DISSOLUTION IN NAHCO3 AND NAHCO3+NACL AQUEOUS-SOLUTIONS AT PH 8 [J].

DROGOWSKA, M ;

BROSSARD, L ;

MENARD, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (01) :39-47

[3]

EDWARDS M, 1994, J AM WATER WORKS ASS, V86, P73

[4]

Edwards M, 1996, J AM WATER WORKS ASS, V88, P81

[5]

Enander Lars, 1994, Vatten, V50, P7

[6]

Eriksson G., 1979, Analytica Chimica Acta, Computer Techniques and Optimization, V112, P375, DOI 10.1016/S0003-2670(01)85035-2

[7]

FERGUSON JF, 1993, P WAT QUAL TECHN C 2, P1481

[8]

*GOT REG WAST WAT, 1994, ANN REP

[9]

HEDBERG T, 1996, P INT CORR WAT DISTR

[10]

JOHANSSON EL, 1989, THESIS CHALMERS U TE

← 1 2 3 →