Advanced oxidation technology mainly utilizes the oxidizing ability of oxidants to thoroughly oxidize refractory organic matter in wastewater into carbon dioxide and water, so as to achieve the purpose of removing pollutants in wastewater. The oxidation tower developed by Lvheng is a high-efficiency oxidation equipment based on Fenton advanced oxidation. The oxidation tower combines fluidized bed technology, heterogeneous oxidation technology and carrier coating technology. At the same time, through the design of hydraulic dynamics, the conditions of Fenton oxidation reaction are brought into full play, so that wastewater and Fenton reagent can thoroughly contact with each other to achieve treatment effect and Fenton reagent can be used at the same time. Consumption was minimized.