Copper corrosion in water distribution systems—the influence of natural organic matter (nom) on the solubility of copper corrosion products

Autor: T. Hedberg, Ann Elfström Broo, Bo Berghult
Rok vydání: 1998
Předmět:
Zdroj: Corrosion Science. 40:1479-1489
ISSN: 0010-938X
DOI: 10.1016/s0010-938x(98)00059-6
Popis: The copper corrosion in drinking water distribution systems was investigated by means of field measurements in different Swedish municipalities. The maximum copper content in the water is not reach until after several hours of stagnation. The results are compared with equilibrium calculations. Good correlation between measurements and calculations is achieved if the maximum copper concentration is assumed to be determined by the equilibrium with the meta stable solid cupric hydroxide. However, the correlation is greatly improved when the complexing action of natural organic matter (NOM) is considered in the calculations. The results suggest that NOM is an important factor for the copper concentration in drinking water distribution systems.
Databáze: OpenAIRE