title: In situ corrosion control in industrial water systems.
abstract: The main objective of this study was to evaluate the efficacy of a biocide and a corrosion inhibitor against the corrosion of a circulating pipe in a cooling tower. Isothiazolone was tested as the industrial biocide. The results showed that the biocide by itself or combined with a dispersant was not efficient to control corrosion in the industrial system. Corrosion rates of 0.324 mm/year were recorded in both the presence and absence of the biocide. Corrosion control was successfully accomplished by using a corrosion inhibitor. In the latter case the maximum corrosion rate of 0.024 mm/year were obtained.
authors.affiliation: Chemistry Department-CQFB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
authors.forename: J F
authors.initials: JF
authors.lastname: Batista
authors.forename: R F
authors.initials: RF
authors.lastname: Pereira
authors.forename: J M
authors.initials: JM
authors.lastname: Lopes
authors.forename: M F
authors.initials: MF
authors.lastname: Carvalho
authors.forename: M J
authors.initials: MJ
authors.lastname: Feio
authors.forename: M A
authors.initials: MA
authors.lastname: Reis
mesh_terms: D018441:Biofilms; D003343:Corrosion; D008855:Microscopy, Electron, Scanning; D010575:Pesticides; D014871:Water Microbiology
chemical_list: D010575:Pesticides