In situ corrosion control in industrial water systems.
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.
Batista
J F
JF
Chemistry Department-CQFB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
Pereira
R F
RF
Lopes
J M
JM
Carvalho
M F
MF
Feio
M J
MJ
Reis
M A
MA
D018441:Biofilms; D003343:Corrosion; D008855:Microscopy, Electron, Scanning; D010575:Pesticides; D014871:Water Microbiology
D010575:Pesticides