Gradiant’s Free Radical Oxidation (FRO) is a cost-effective advanced oxidation process (AOP) for the removal of Total Organic Carbon (TOC), refractory organics, and other non-biodegradable organics from the most challenging wastewaters.

AOPs are in-situ treatment technologies that use hydroxyl radicals, the ultimate oxidant, for removal of organic contaminants in wastewater. These are highly effective methods to accelerate the oxidation process. AOP can combine with components such as ozone (O₃), hydrogen peroxide (H₂O₂), sulphate (SO₄), and E-Peroxone to offer a powerful treatment of wastewater.

Superior to Conventional Ozonation

FRO is more cost-effective and out-performs conventional ozonation systems, with its micro and nanobubble generator. Only 5% of the oxidant dosage is needed versus conventional systems – resulting in 50% less energy and chemical consumption. Another advantage of FRO is the floatation effect of the microbubbles which serve to remove TSS during the oxidation process, thereby eliminating the need for downstream solids removal.