How does cathodic protection benefit UST systems?

Cathodic protection is a method used to prevent the corrosion of structural steel in underground storage tank (UST) systems by utilizing electrical currents. In UST applications, cathodic protection typically involves the installation of a sacrificial anode or an impressed current system that protects the tank and associated piping from rust and degradation.

When installed, cathodic protection works by creating an electrochemical reaction that effectively neutralizes the corrosion process. By directing electrical currents onto the metal surfaces of the tank, these systems help to inhibit the oxidation reactions that lead to corrosion. This is especially crucial for UST systems, which are often buried underground and exposed to moisture and soil that can accelerate corrosion. By preventing corrosion, cathodic protection extends the life of the UST infrastructure, enhances safety, and reduces the risk of leaks that could contaminate the environment.

The other options do not describe the primary function of cathodic protection. Fuel efficiency is not impacted by this method, nor does cathodic protection play a role in temperature regulation within the tanks or enhance fuel cleanliness. Instead, its main advantage lies in its ability to safeguard tanks and piping against corrosion damage.