Innovative Application of CDOF Advanced Catalytic Ozonation in Wastewater Treatment

With environmental requirements becoming ever stricter, industrial wastewater treatment is facing a transition toward higher efficiency and lower carbon. The CDOF (Cyclonic Dissolved Ozone Flotation Unit) advanced catalytic ozonation technology integrates multi-pathway catalytic ozonation, cyclonic dissolved gas flotation and other core technologies, providing a revolutionary solution for difficult industrial wastewater.

1. Technical Principles and Core Breakthroughs
CDOF technology pioneers an integrated "catalytic ozonation + cyclonic flotation" design, whose core lies in:
Multi-pathway catalytic oxidation: combining homogeneous and heterogeneous catalysts (including precious-metal active components), reactions such as pressurized catalysis and hydrodynamic cavitation convert ozone into hydroxyl radicals (·OH, oxidation potential 2.8 V) with far stronger oxidizing power, efficiently degrading COD, petroleum hydrocarbons, colloids and other pollutants; ozone utilization reaches 99.98% and the operating cost is only one-third of conventional processes.
Ultra-fine bubble mass transfer enhancement: patented ultra-fine bubble generation (5-30 μm) greatly improves gas-liquid contact efficiency, shortening reaction retention time to 15 minutes (conventional processes need 90 minutes) and reducing equipment footprint by 70%.
Fully enclosed pressurized operation: a DCS/PLC system regulates ozone dosage and reaction pressure in real time, ensuring effluent COD stably meets the standard (≤20 mg/L) with no risk of ozone leakage.

2. Typical Application Scenarios and Cases
Landfill leachate and black-odorous water bodies
Compared with conventional processes, CDOF technology can avoid the nanofiltration/reverse osmosis stage entirely, cutting capital cost by 40% for landfill leachate treatment with no concentrate generated.
New energy and metallurgy industries
In the production wastewater treatment of a new-energy raw material company, CDOF raised the degradation efficiency of heavy-metal complexes 4 times, and catalyst life exceeds 5 years.

3. Comparative Advantages over Conventional Processes

4. Future Outlook
As the "dual carbon" goals advance, CDOF technology, with its zero-chemical, low-energy and modular features, is gradually replacing conventional processes. Looking ahead, through IoT remote monitoring and optimized catalyst regeneration, CDOF is expected to become a new benchmark for advanced industrial wastewater treatment.