What is the primary role of cathodic protection in water systems?

The primary role of cathodic protection in water systems is to prevent corrosion. This is achieved by using a sacrificial anode or impressed current to protect metal surfaces exposed to corrosive environments, such as pipes and storage tanks in water systems. When cathodic protection is applied, it works by diverting the electrochemical reactions that cause corrosion away from the protected metal, thus extending the lifespan of the infrastructure and maintaining the integrity of the water system.

Preventing corrosion is crucial in utility management, as it helps avoid leaks, structural failures, and contamination of the water supply. By minimizing corrosion, water systems can operate more efficiently and ensure safety and quality for consumers.

In contrast, enhancing chemical stability and improving taste do not directly relate to the primary function of cathodic protection. While reducing operational costs can be a benefit of preventing corrosion, it is not the primary role of cathodic protection itself. The focus remains squarely on the mitigation of corrosion-related issues.