Steel waste water treatment systems are routinely protected by coding supplemented with cathodic protection, which is an impressed current cathodic protection system (ICCP) for a treatment system that consists of several magnesium anodes buried in the ground adjacent to the tank structure. Cathodic protection is used to mitigate corrosion damage to active metal surfaces, and is used all over the globe to protect pipelines, Water treatment plants, waste water treatment systems, and more. Cathodic protection is also used to protect steel fabrication material used in manufacturing your system from corrosion.





Corrosion is caused when two similar metals are connected in an electrolytic substance such as water, soil, or concrete. This type of metal conducting path between the two dissimilar Metals allows a pathway through which free electrons move from the more active metal (anode) to the less active steel tankage (cathode). It free electrons from the anode do not reach active sites on the cathode before the arrival of oxygen, ions at the active site can then recombine to produce Ferrous hydroxide, (i.e. Rust) which can cause your tankage to fail. This is why anodes are provided for your system. The anodes in most cases will last about five years, therefore needs to be replaced at that time. WWD stocks these replacement anodes.