In the field of industrial wastewater treatment, especially for highly toxic, high-concentration, and hard-to-biodegrade organic wastewater, Industrial Wastewater Catalytic Oxidation Ozone Iron-Carbon Filler has become crucial for achieving compliant discharge. Among these, combining ozone catalytic oxidation with iron-carbon micro-electrolysis technology forms an efficient and economical advanced treatment process. The core lies in the Industrial Wastewater Catalytic Oxidation Ozone Iron-Carbon Filler and iron-carbon filler, which play irreplaceable roles in their respective stages, collectively building a powerful pollution barrier.