Cathodic Protection Efficiency in the Presence of SRB: State of the Art

The cathodic protection is one of the corrosion control techniques used more globally with quite satisfactory results, however, where the phenomenon is microbiologically induced corrosion (MIC), the efficiency of such control systems decreases significantly, due to a number of factors, among them it could mention the effect of ohmic drop produced by the extracellular polymeric membrane (EPS). This paper present a review of the experiences reported worldwide about it, and discusses the results of several experiments, in establishing the best criteria of polarized potential to be maintained when the problem is generated by MIC.