Why Ozone Catalysts are Used in CDOF Units for Wastewater Treatment?

The use of ozone catalysts in CDOF (Cyclonic Dissolved Ozone Flotation Unit) units for wastewater treatment is primarily based on several key reasons:

I. Enhanced Ozone Oxidation Efficiency

• Accelerated Ozone Decomposition: Ozone catalysts accelerate the spontaneous decomposition of ozone in water, increasing the concentration of hydroxyl radicals (•OH) and other strong oxidizing substances. These substances have the ability to attack and degrade most organic pollutants and some inorganic pollutants without selectivity, thereby significantly improving the efficiency of ozone oxidation.
• Reduced Reaction Activation Energy: Ozone catalysts lower the energy required for reactions, enabling them to proceed rapidly under normal temperature and pressure conditions. This aids in achieving efficient wastewater treatment under more mild conditions.

II. Improved Treatment Effectiveness

• Advanced Oxidation: The combination of ozone catalysts and ozone enables advanced oxidation, which completely mineralizes organics into harmless substances such as carbon dioxide and water. This helps reduce the environmental impact of treated wastewater.
• Enhanced Water Quality: Through catalysis, ozone catalysts can more effectively remove pollutants such as organics, ammonia nitrogen, suspended solids, and color from water, thereby improving water quality.

III. Economics and Sustainability

• Regenerable Catalysts: Ozone catalysts typically exhibit good stability and regenerability, allowing for long-term reuse. This reduces treatment costs and decreases the frequency of catalyst replacement and maintenance.
• Energy Savings and Consumption Reduction: Due to the increased reaction rate, CDOF units using ozone catalysts can reduce the required ozone and energy consumption, achieving energy savings and consumption reduction.

IV. Proven Application Cases

• In practical applications, CDOF units combined with ozone catalysts have achieved significant results. For example, in the treatment of high-difficulty wastewaters such as pharmaceutical wastewater and landfill leachate, CDOF units have demonstrated efficient pollutant removal and water quality improvement through ozone catalytic oxidation processes.

In summary, the use of ozone catalysts in CDOF units for wastewater treatment significantly enhances ozone oxidation efficiency, improves treatment effectiveness, reduces treatment costs, and achieves energy savings and consumption reduction. These advantages make CDOF units with ozone catalysts have broad application prospects and important practical value in the field of wastewater treatment.