Anodic protection is a powerful technique used to mitigate liquor tankage corrosion. The large currents required to protect a typical vessel led to problems in the first generation of commercial systems. This article describes what caused the problems. Part II (March 2002 MP) will discuss […]
Most metals will corrode within a certain range of electrical solution potential and solution pH. At potentials more negative than this range, corrosion ceases (cathodic protection). At potentials more positive than this range, several metals become passive. For these metals the potential can be shifted […]
Issues considered during the design of an impressed current type cathodic protection (ICCP) system for corrosion control on the submerged external surfaces of the steel ice shields on the bridge piers are presented. The challenges and cathodic protection (CP) system design solutions, associated with providing […]
Anodic protection is a powerful technique used to mitigate corrosion of liquor tankage. The large currents required for protection of a typical vessel led to problems in the first generation of commercial systems. This paper describes the cause of the problems and the solutions developed […]
Use of Electrochemical protection systems (Cathodic, Papritection® and Anodic) has significantly increased during the last decade. Cathodic protection has been routinely installed on underground structures such as pipelines and storage tanks however, the use of electrochemical protection systems has now gained acceptance to protect the […]
Clarifiers are utilized by various chemical process plants, including the pulp and paper industry. Clarifiers are used to minimize the amount and toxicity of suspended solids in the effluent stream. The clarification process incorporates coagulation, flocculation, and sedimentation. The removal of suspended matter by settling […]
To date the majority of cathodic protection systems utilize either sacrificial anode or impressed current systems relying upon AC to DC rectifiers powered from the conventional electric power grid. In remote locations however, many alternative energy sources have been used with varying degrees of success. […]
