Physico-chemical characteristics of corrosion scales in old iron pipes.

Sarin, P; Snoeyink, V L; Bebee, J; Kriven, W M; Clement, J A

Sarin, P; Snoeyink, V L; Bebee, J; Kriven, W M; Clement, J A.

Afiliación

Sarin P; Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 61801, USA.

Water Res ; 35(12): 2961-9, 2001 Aug.

Article en En | MEDLINE | ID: mdl-11471696

RESUMEN

Corrosion scales play an important role in modifying water quality in drinking water distribution systems. The corrosion scales from old iron/steel pipes were analyzed for their structure and composition. Scales were studied both before and after drying. and goethite, magnetite and lepidocrocite were identified as the primary constituents of the dried samples. High concentrations of readily soluble ferrous phases were detected in wet-scale samples. The corrosion scales had a shell-like, enveloping layer, covering porous deposits of iron oxide phases. Our studies were able to identify important differences between corrosion scales found in two different water distribution systems. Further studies are needed to establish the role of corrosion scales in the mechanism of iron release from corroded pipes.

Asunto(s)

Compuestos Férricos/metabolismo; Hierro/química; Contaminantes Químicos del Agua/análisis; Abastecimiento de Agua/análisis; Corrosión; Densitometría; Concentración de Iones de Hidrógeno; Compuestos de Hierro/química; Modelos Químicos; Oxígeno/metabolismo; Porosidad; Reología; Ingeniería Sanitaria; Temperatura

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Abastecimiento de Agua / Compuestos Férricos / Hierro Tipo de estudio: Prognostic_studies Idioma: En Revista: Water Res Año: 2001 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido

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