The potential of ferrate, specifically Ferrate(VI), a supercharged form of iron with a +6 oxidation state, as an advanced oxidant for water and wastewater treatment is widely documented. While the use of ferrates has been limited due to synthesis difficulties and inherent instability, AMS has developed a novel system for on-site production of Ferrate(VI) to address this limitation. Examining the history of oxidation in water treatment and the role of advanced oxidation processes (AOPs) in oxidizing complex organic constituents, it is evident that Ferrate(VI) can be a strong oxidant with a higher oxidation potential than ozone and chlorine. Despite challenges in treating stubborn organics and the need for efficient and economical AOPs, ongoing study and consideration for Ferrate as an AOP option will reshape the paradigm of advanced oxidation for water and wastewater treatment.