title: The corrosive nature of manganese in drinking water.
abstract: Corrosion problems having to do with drinking water distribution systems are related to many processes and factors and two of them are ionic acidity and carbon dioxide, which were considered in this work. The corrosion character of water is determined by the corrosion indexes of Langelier, Ryznar, Larson, and Mojmir. The results show that pipes made of different materials, such as plastics or metals, are affected by corrosion, causing manganese to be deposited on materials and dissolved in water. The deterioration of the materials, the degree of corrosion, and the deposited corrosion products were determined by X-ray diffraction and Scanning Electron Microscopy. High levels of manganese and nitrate ions in water may cause serious damage to the health of consumers of water. Three wells were examined, one of them presented a high content of manganese; the others had high levels of nitrate ions, which increased the acidity of the water and, therefore, the amount of corrosion of the materials in the distribution systems.
authors: Centro Interamericano de Recursos del Agua, Facultad de Ingeniería, Universidad Autónoma del Estado de México, Carretera Toluca-Ixtlahuaca, Km. 14.5, C.P. 50200, Toluca, Estado de México, Mexico.
authors: C
authors: C
authors: Alvarez-Bastida
authors: V
authors: V
authors: Martínez-Miranda
authors: G
authors: G
authors: Vázquez-Mejía
authors: M
authors: M
authors: Solache-Ríos
authors: G
authors: G
authors: Fonseca-Montes de Oca
authors: E
authors: E
authors: Trujillo-Flores
mesh_terms: D000293:Adolescent; D002245:Carbon Dioxide; D002648:Child; D002675:Child, Preschool; D003343:Corrosion; D060766:Drinking Water / Q000737:chemistry*; D005260:Female; D006801:Humans; D007223:Infant; D008345:Manganese / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D008956:Models, Chemical; D009566:Nitrates / Q000737:chemistry; D011247:Pregnancy; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014881:Water Supply; D014961:X-Ray Diffraction
chemical_list: D060766:Drinking Water; D009566:Nitrates; D014874:Water Pollutants, Chemical; D002245:Carbon Dioxide; D008345:Manganese